HUAWEI BSC6000 Base Station Controller Performance Counter Reference
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Contents 1 SCCP Measurement...................................................................................................................1-1 1.1 Overview of SCCP Measurement .................................................................................................................1-2 1.2 SCCP OSP Measurement ..............................................................................................................................1-2 1.2.1 Overview of SCCP OSP Measurement ................................................................................................1-2 1.2.2 Number of Sent UDT Messages ..........................................................................................................1-3 1.2.3 Number of Received UDT Messages...................................................................................................1-3 1.2.4 Number of Sent XUDT Messages........................................................................................................1-4 1.2.5 Number of Received XUDT Messages................................................................................................1-4 1.2.6 Number of Sent CR Messages .............................................................................................................1-4 1.2.7 Number of Received CR Messages......................................................................................................1-5 1.2.8 Number of Sent CREF Messages.........................................................................................................1-5 1.2.9 Number of Received CREF Messages .................................................................................................1-6 1.2.10 Ratio of CREF by Peer SCCP............................................................................................................1-6 1.2.11 Ratio of CREF by Local SCCP ..........................................................................................................1-6 1.2.12 Received CC Messages......................................................................................................................1-7 1.2.13 Sent CC Messages..............................................................................................................................1-7 1.2.14 Sent DT1 Messages............................................................................................................................1-8 1.2.15 Received DT1 Messages....................................................................................................................1-8 1.2.16 Sent RLSD Messages.........................................................................................................................1-8 1.2.17 Received RLSD Messages .................................................................................................................1-9 1.2.18 Sent RLC Messages ...........................................................................................................................1-9 1.2.19 Received RLC Messages .................................................................................................................1-10
2 MTP3 Measurement ..................................................................................................................2-1 2.1 Overview of MTP3 Measurement.................................................................................................................2-2 2.2 MTP3 Link Measurement .............................................................................................................................2-2 2.2.1 Overview..............................................................................................................................................2-2 2.2.2 In-Service Duration of MTP3 Link......................................................................................................2-3 2.2.3 Out-of-Service Duration of MTP3 Link...............................................................................................2-4 2.2.4 Duration of MTP3 Link Fault ..............................................................................................................2-4 2.2.5 Duration of MTP3 Link Local Inhibition.............................................................................................2-4 2.2.6 Duration of MTP3 Link Remote Inhibition .........................................................................................2-5 2.2.7 Duration of MTP3 Link Remote Processor Fault ................................................................................2-5
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference 2.2.8 Duration of MTP3 Link Congestion ....................................................................................................2-6 2.2.9 Failures of MTP3 Link for All Reasons ...............................................................................................2-6 2.2.10 MTP3 Link Local Inhibitions ............................................................................................................2-6 2.2.11 MTP3 Link Remote Inhibitions .........................................................................................................2-7 2.2.12 MTP3 Link Remote Processor Failures .............................................................................................2-7 2.2.13 MTP3 Link Local Switchovers ..........................................................................................................2-8 2.2.14 MSUs Sent on MTP3 Link.................................................................................................................2-8 2.2.15 MSUs Received on MTP3 Link.........................................................................................................2-9 2.2.16 MTP3 Link Congestions ....................................................................................................................2-9 2.2.17 Discarded MSUs During Link Congestion ........................................................................................2-9 2.2.18 Transfer Inhibition Messages Received on MTP3 Link...................................................................2-10 2.2.19 Octets in SIFs or SIOs Sent on MTP3 Link .....................................................................................2-10 2.2.20 Octets in SIFs and SIOs Received by MTP3 Link........................................................................... 2-11 2.2.21 64 kbit/s Timeslots Occupied by a Signaling Link........................................................................... 2-11 2.2.22 Ratio of Transmit Bandwidth to Total Bandwidth ........................................................................... 2-11 2.2.23 Ratio of Receive Bandwidth to Total Bandwidth.............................................................................2-12 2.2.24 Bytes of MTP2 Message Head in MSU Messages on MTP3 Link ..................................................2-12
3 LAPD Measurement ..................................................................................................................3-1 3.1 Overview of LAPD Measurement.................................................................................................................3-2 3.2 LAPD Link Measurement .............................................................................................................................3-2 3.2.1 Overview..............................................................................................................................................3-2 3.2.2 SABME Frames Sent on LAPD Link ..................................................................................................3-3 3.2.3 SABME Frames Received on LAPD Link ..........................................................................................3-4 3.2.4 REJ Frames Sent on LAPD Link .........................................................................................................3-4 3.2.5 REJ Frames Received on LAPD Link .................................................................................................3-4 3.2.6 RNR Frames Sent on LAPD Link........................................................................................................3-5 3.2.7 RNR Frames Received on LAPD Link ................................................................................................3-5 3.2.8 I Frames Resent on LAPD Link...........................................................................................................3-6 3.2.9 Incorrect I Frames Received on LAPD Link .......................................................................................3-6 3.2.10 I Frames Received on LAPD Link from Application Layer ..............................................................3-6 3.2.11 I Frames Sent on LAPD Link.............................................................................................................3-7 3.2.12 I Frames Received by LAPD Link.....................................................................................................3-7 3.2.13 I Frames Discarded by LAPD Link ...................................................................................................3-8 3.2.14 UA Frames Sent on LAPD Link ........................................................................................................3-8 3.2.15 UA Frames Received by LAPD Link.................................................................................................3-8 3.2.16 UI Frames Received by LAPD Link..................................................................................................3-9
4 System Load Measurement ......................................................................................................4-1 4.1 Overview of System Load Measurement ......................................................................................................4-2 4.2 CPU Usage Measurement .............................................................................................................................4-2 4.2.1 Overview..............................................................................................................................................4-2 4.2.2 Mean CPU Usage.................................................................................................................................4-3
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4.2.3 Maximum CPU Usage .........................................................................................................................4-3
5 BTSM Management...................................................................................................................5-1 5.1 Overview of BTSM Measurement ................................................................................................................5-2 5.2 BTS State Measurement per BTS..................................................................................................................5-2 5.2.1 Overview..............................................................................................................................................5-2 5.2.2 Successful BTS Initializations .............................................................................................................5-3 5.2.3 Failed BTS Initializations ....................................................................................................................5-3 5.2.4 BTS OML Disruption Duration ...........................................................................................................5-4 5.2.5 BTS Out-of-Service Duration ..............................................................................................................5-4 5.2.6 BTS Availability...................................................................................................................................5-4 5.2.7 BTS In-Service Duration .....................................................................................................................5-5 5.3 BTS Configuration Measurement per BM Subrack ......................................................................................5-5 5.3.1 Overview..............................................................................................................................................5-5 5.3.2 Activated BTSs ....................................................................................................................................5-6 5.3.3 Available BTSs.....................................................................................................................................5-6 5.4 Cell State Measurement per Cell...................................................................................................................5-6 5.4.1 Overview..............................................................................................................................................5-6 5.4.2 Successful Cell Initializations ..............................................................................................................5-7 5.4.3 Failed Cell Initializations .....................................................................................................................5-7 5.4.4 Cell BCCH Mutual Aid........................................................................................................................5-8 5.4.5 Recoveries after Cell BCCH Mutual Aid.............................................................................................5-8 5.4.6 Cell Baseband Hopping Mutual Aid ....................................................................................................5-9 5.4.7 Recoveries After Cell Baseband Hopping Mutual Aid ........................................................................5-9 5.4.8 Cell Out-of-Service Duration...............................................................................................................5-9 5.4.9 Cell Availability .................................................................................................................................5-10 5.4.10 Cell In-Service Duration ..................................................................................................................5-10 5.5 Cell Configuration Measurement per BM Subrack..................................................................................... 5-11 5.5.1 Overview............................................................................................................................................ 5-11 5.5.2 Activated Cells ................................................................................................................................... 5-11 5.5.3 Available Cells ................................................................................................................................... 5-11 5.6 TRX State Measurement per TRX ..............................................................................................................5-12 5.6.1 Overview............................................................................................................................................5-12 5.6.2 TRX Out-of-Service Duration............................................................................................................5-12 5.7 TRX Configuration Measurement per BM Subrack....................................................................................5-13 5.7.1 Overview............................................................................................................................................5-13 5.7.2 Activated TRXs..................................................................................................................................5-13 5.7.3 Available TRXs ..................................................................................................................................5-13 5.7.4 TRX Availability ................................................................................................................................5-14 5.8 CRC Error Measurement per BTS ..............................................................................................................5-14 5.8.1 Overview............................................................................................................................................5-14 5.8.2 Duration of CRC Error on Ports 0 Through 23 ..................................................................................5-15
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5.9 CRC Serious Error Measurement per BTS .................................................................................................5-16 5.9.1 Overview............................................................................................................................................5-16 5.9.2 Duration of Serious CRC Error on Ports 0 Through 23 .....................................................................5-16 5.10 OML Measurement per BTS .....................................................................................................................5-18 5.10.1 Overview..........................................................................................................................................5-18 5.10.2 OML Setup Requests Sent by BTS ..................................................................................................5-19 5.10.3 OML Setup Requests Received by BTS ..........................................................................................5-19 5.10.4 BTS-Sent Rejects to the OML Setup Requests ................................................................................5-20 5.10.5 BTS-Received Rejects to the OML Setup Requests ........................................................................5-20 5.10.6 OML RNR Frames Sent by BTS......................................................................................................5-21 5.10.7 OML RNR Frames Received by BTS..............................................................................................5-21 5.10.8 OML I Frames Resent by BTS.........................................................................................................5-22 5.10.9 OML NRERR Received by BTS .....................................................................................................5-22 5.10.10 OML L3 Data Requests Received by BTS ....................................................................................5-23 5.10.11 OML I Frames Sent by BTS...........................................................................................................5-23 5.10.12 OML I Frames Received by BTS...................................................................................................5-24 5.10.13 Queue Overflows of OML Messages Sent by BTS........................................................................5-24 5.10.14 Erroneously Received OML Long Frames by BTS Physical Layer...............................................5-25 5.10.15 OML Byte Errors Received by BTS Physical Layer......................................................................5-25 5.10.16 OML Discarded Series Received by BTS Physical Layer .............................................................5-26 5.10.17 OML CRC Errors Received by BTS..............................................................................................5-26 5.10.18 L1 and L2 Overflows of BTS OML...............................................................................................5-27 5.10.19 Total OML Frames Received by BTS Physical Layer ...................................................................5-27 5.11 RSL Measurement per TRX ......................................................................................................................5-28 5.11.1 Overview..........................................................................................................................................5-28 5.11.2 RSL Setup Requests Sent from BTS ................................................................................................5-29 5.11.3 RSL Setup Requests Received from BTS ........................................................................................5-29 5.11.4 BTS-Sent Rejects to the RSL Setup Requests Sent by BTS ............................................................5-30 5.11.5 BTS-Received Rejects to the RSL Setup Requests ..........................................................................5-30 5.11.6 RSL RNR Frames Sent by BTS .......................................................................................................5-31 5.11.7 RSL RNR Frames Received by BTS................................................................................................5-31 5.11.8 RSL I Frames Resent by BTS ..........................................................................................................5-32 5.11.9 RSL NRERR Received by BTS .......................................................................................................5-32 5.11.10 RSL Layer 3 Requests Received by BTS.......................................................................................5-33 5.11.11 RSL I Frames Sent by BTS ............................................................................................................5-33 5.11.12 RSL I Frames Received by BTS ....................................................................................................5-34 5.11.13 Queue Overflows of RSL Messages Sent by BTS .........................................................................5-34 5.11.14 Erroneously Received RSL Long Frames by BTS Physical Layer ................................................5-35 5.11.15 RSL Octet Errors Received by BTS Physical Layer ......................................................................5-35 5.11.16 RSL Discarded Sequences Received by BTS Physical Layer........................................................5-36 5.11.17 RSL CRC Errors Received by BTS................................................................................................5-36 5.11.18 L1 and L2 Overflows of BTS RSL ................................................................................................5-37
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5.11.19 Total RSL Frames Received by BTS Physical Layer .....................................................................5-37
6 Resources Measurement ...........................................................................................................6-1 6.1 Overview of Resources Measurement...........................................................................................................6-2 6.2 A Interface Circuit Measurement per DPC....................................................................................................6-2 6.2.1 Overview..............................................................................................................................................6-2 6.2.2 Mean Number of Uninstalled Circuits on the A Interface....................................................................6-3 6.2.3 Mean Number of Faulty Circuits on the A Interface ............................................................................6-3 6.2.4 Mean Number of Circuits in Maintenance State on the A Interface.....................................................6-4 6.2.5 Mean Number of Blocked Circuits on the A Interface.........................................................................6-4 6.2.6 Mean Number of Idle Circuits on the A Interface ................................................................................6-5 6.2.7 Mean Number of Busy Circuits on the A Interface ..............................................................................6-5 6.2.8 Mean Number of Circuits with Uninstalled Peer Circuits on the A Interface ......................................6-6 6.3 TC Measurement per DPC ............................................................................................................................6-6 6.3.1 Overview..............................................................................................................................................6-6 6.3.2 Mean Number of Faulty TC Resources................................................................................................6-7 6.3.3 Mean Number of Idle TC Resources....................................................................................................6-7 6.3.4 Mean Number of Busy TC Resources..................................................................................................6-8 6.4 Pb Interface Circuit Measurement per PCU..................................................................................................6-8 6.4.1 Overview..............................................................................................................................................6-8 6.4.2 Mean Number of Faulty Circuits on the Pb Interface ..........................................................................6-9 6.4.3 Mean Number of Blocked Circuits on the Pb Interface .......................................................................6-9 6.4.4 Mean Number of Idle Circuits on the Pb Interface ............................................................................6-10 6.4.5 Mean Number of Busy Circuits on the Pb Interface ..........................................................................6-10 6.4.6 Mean Number of Circuits in Maintenance State on the Pb Interface ................................................. 6-11 6.5 Ater Interface Circuit Measurement per BM Subrack................................................................................. 6-11 6.5.1 Overview............................................................................................................................................ 6-11 6.5.2 Mean Number of Faulty Circuits on the Ater Interface......................................................................6-12 6.5.3 Mean Number of Idle Circuits on the Ater Interface..........................................................................6-12 6.5.4 Mean Number of Busy Circuits on the Ater Interface........................................................................6-13
7 MSC Measurement ....................................................................................................................7-1 7.1 Overview of MSC Measurement...................................................................................................................7-2 7.2 MSC Measurement per DPC.........................................................................................................................7-2 7.2.1 Overview..............................................................................................................................................7-2 7.2.2 Number of MSC Resets .......................................................................................................................7-2 7.2.3 Number of Messages Received from MSC..........................................................................................7-3
8 CBC Measurement .....................................................................................................................8-1 8.1 Overview of CBC Measurement ...................................................................................................................8-2 8.2 CBC Measurement per BSC .........................................................................................................................8-2 8.2.1 Overview..............................................................................................................................................8-2 8.2.2 WRITE-REPLACE Requests Received by BSC .................................................................................8-3 8.2.3 KILL Requests Received by BSC........................................................................................................8-4
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference 8.2.4 STATUS-CBCH-QUERY Requests Received by BSC........................................................................8-4 8.2.5 STATUS-MESSAGE-QUERY Requests Received by BSC ................................................................8-4 8.2.6 SET-DRX Requests Received by BSC ................................................................................................8-5 8.2.7 RESET Requests Received by BSC.....................................................................................................8-5 8.2.8 REPORT Responses to WRITE-REPLACE Requests.........................................................................8-6 8.2.9 REJECT Responses to WRITE-REPLACE Requests..........................................................................8-6 8.2.10 REPORT Responses to KILL Requests .............................................................................................8-7 8.2.11 REJECT Responses to KILL Requests ..............................................................................................8-7 8.2.12 REPORT Responses to STATUS-CBCH-QUERY Requests .............................................................8-8 8.2.13 REJECT Responses to STATUS-CBCH-QUERY Requests ..............................................................8-8 8.2.14 REPORT Responses to STATUS-MESSAGE-QUERY Requests......................................................8-9 8.2.15 REJECT Responses to STATUS-MESSAGE-QUERY Requests ......................................................8-9 8.2.16 REPORT Responses to SET-DRX Requests ....................................................................................8-10 8.2.17 REJECT Responses to SET-DRX Requests.....................................................................................8-10 8.2.18 RESTART-INDICATION Requests Sent from BSC........................................................................ 8-11 8.2.19 REJECT Responses to RESTART-INDICATION Requests ............................................................ 8-11 8.2.20 FAILURE-INDICATION Requests Sent from BSC ........................................................................8-12 8.2.21 CBCH Loading Indications Received by BSC (Overflow)..............................................................8-12 8.2.22 CBCH Loading Indications Received by BSC (Underflow)............................................................8-12 8.2.23 WRITE-REPLACE Requests (WRITE Requests) Received by BSC..............................................8-13 8.2.24 REPORT Responses to WRITE-REPLACE Requests (WRITE Requests) .....................................8-13 8.2.25 REJECT Responses to WRITE-REPLACE Requests (WRITE Requests) ......................................8-14 8.2.26 WRITE-REPLACE Requests (REPLACE Requests) Received by BSC.........................................8-14 8.2.27 REPORT Responses to WRITE-REPLACE Requests (REPLACE Requests) ................................8-15 8.2.28 REJECT Responses to WRITE-REPLACE Requests (REPLACE Requests) .................................8-15 8.2.29 Mean Capacity of BSC Message Library.........................................................................................8-16 8.2.30 Disruptions of the BSC-CBC Connection........................................................................................8-16
9 PCU Measurement .....................................................................................................................9-1 9.1 Overview of PCU Measurement ...................................................................................................................9-2 9.2 PCU Measurement per BSC..........................................................................................................................9-2 9.2.1 Overview..............................................................................................................................................9-2 9.2.2 Total Messages Received from PCU....................................................................................................9-2 9.3 PCU Measurement per PCU .........................................................................................................................9-3 9.3.1 Overview..............................................................................................................................................9-3 9.3.2 Messages Received from a PCU ..........................................................................................................9-3
10 Paging Measurement.............................................................................................................10-1 10.1 Overview of Paging Measurement ............................................................................................................10-2 10.2 A Interface Paging Measurement ..............................................................................................................10-2 10.2.1 Overview of A Interface Paging Measurement ................................................................................10-2 10.2.2 MSC-Initiated Paging Requests for CS Service...............................................................................10-3 10.2.3 SGSN-Initiated Paging Requests for CS Service .............................................................................10-3
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10.2.4 SGSN-Initiated Paging Requests for PS Service .............................................................................10-4 10.2.5 Delivered to BTS for CS Service .....................................................................................................10-5 10.3 Abis Interface Paging Measurement..........................................................................................................10-6 10.3.1 Overview of Abis Interface Paging Measurement ...........................................................................10-6 10.3.2 Delivered Paging Messages for CS Service.....................................................................................10-6 10.3.3 Delivered Paging Messages for PS Service .....................................................................................10-7 10.4 Measurement of Discarded Paging Messages due to Overload per LAPD ...............................................10-8 10.4.1 Overview of Measurement of Discarded Paging Messages due to Overload per LAPD .................10-8 10.4.2 SM Pagings Discarded on LAPD Link ............................................................................................10-9 10.4.3 CS Pagings Discarded on LAPD Link .............................................................................................10-9 10.4.4 PS Pagings Discarded on LAPD Link .............................................................................................10-9
11 Call Measurement ..................................................................................................................11-1 11.1 Overview of Call Measurement................................................................................................................. 11-3 11.2 Call Duration Measurement per BSC........................................................................................................ 11-4 11.2.1 Overview.......................................................................................................................................... 11-4 11.2.2 Mean Duration of Call Access ......................................................................................................... 11-4 11.2.3 Mean Duration of Call Establishment .............................................................................................. 11-4 11.3 Flow Control Measurement per Cell ......................................................................................................... 11-5 11.3.1 Overview.......................................................................................................................................... 11-5 11.3.2 MSG DEL IND Messages Sent on Abis Interface ........................................................................... 11-6 11.3.3 MSG CCCH LOAD IND (RACH) Messages Sent on Abis Interface.............................................. 11-6 11.3.4 MSG CCCH LOAD IND (PCH) Messages Sent on Abis Interface................................................. 11-7 11.3.5 PACKET CCCH LOAD IND Messages Sent on Abis Interface...................................................... 11-7 11.3.6 MSG ABIS OVERLOAD (CCCH OVERLOAD) Messages Sent on Abis Interface ...................... 11-8 11.3.7 MSG ABIS OVERLOAD (PROCESSOR OVERLOAD) Messages Sent on Abis Interface .......... 11-8 11.3.8 LOAD IND Messages Sent on the A-Interface ................................................................................ 11-9 11.3.9 Increases of Flow Control Levels..................................................................................................... 11-9 11.3.10 Decreases of Flow Control Levels ............................................................................................... 11-10 11.3.11 Ignored Trigger Events................................................................................................................. 11-11 11.3.12 Highest Level Delays ................................................................................................................... 11-11 11.4 Short Message Measurement per Cell ..................................................................................................... 11-12 11.4.1 Overview........................................................................................................................................ 11-12 11.4.2 Uplink Point-to-Point Short Messages on SDCCH........................................................................ 11-12 11.4.3 Downlink Point-to-Point Short Messages on SDCCH ................................................................... 11-13 11.4.4 Uplink Point-to-Point Short Messages on TCH ............................................................................. 11-13 11.4.5 Downlink Point-to-Point Short Messages on TCH ........................................................................ 11-13 11.4.6 Total Uplink Point-to-Point Short Messages .................................................................................. 11-14 11.4.7 Total Downlink Point-to-Point Short Messages ............................................................................. 11-14 11.4.8 Point-to-Point Short Messages on SDCCH.................................................................................... 11-15 11.4.9 Point-to-Point Short Messages on TCH ......................................................................................... 11-15 11.5 Call Drop Measurement per Cell............................................................................................................. 11-15
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference 11.5.1 Overview........................................................................................................................................ 11-15 11.5.2 Call Drop Sampled Measurement per Cell..................................................................................... 11-16 11.5.3 Call Drop Analyzed Measurement per Cell.................................................................................... 11-21
11.6 Channel Activation Measurement per Cell.............................................................................................. 11-29 11.6.1 Overview........................................................................................................................................ 11-29 11.6.2 SDCCH Connection Measurement per Cell................................................................................... 11-30 11.6.3 TCH Connection Measurement per Cell ........................................................................................ 11-32 11.6.4 Channel Activation Analyzed Measurement per Cell..................................................................... 11-37 11.7 Channel Seizure Measurement per TRX ................................................................................................. 11-42 11.8 Immediate Assignment Measurement per Cell........................................................................................ 11-45 11.8.1 Overview........................................................................................................................................ 11-45 11.8.2 Channel Requests per Cell ............................................................................................................. 11-46 11.8.3 Immediate Assignment Commands per Cell .................................................................................. 11-47 11.8.4 Call Setup Indications per Cell....................................................................................................... 11-49 11.8.5 Rejects to Service Requests per Cell.............................................................................................. 11-51 11.8.6 Immediate Assignment Analyzed Measurement per Cell............................................................... 11-52 11.9 Assignment Measurement per Cell.......................................................................................................... 11-55 11.9.1 Overview........................................................................................................................................ 11-55 11.9.2 Assignment Requests per Cell........................................................................................................ 11-55 11.9.3 Assignment Commands per Cell .................................................................................................... 11-58 11.9.4 Completed Assignments per Cell ................................................................................................... 11-60 11.9.5 Failed Assignments per Cell........................................................................................................... 11-61 11.9.6 Mode Modify Commands per Cell................................................................................................. 11-64 11.9.7 Failed Mode Modify Attempts per Cell ......................................................................................... 11-66 11.9.8 Assignment Procedure Analyzed Measurement per Cell ............................................................... 11-68 11.10 Intra-Cell Handover Measurement per Cell .......................................................................................... 11-70 11.10.1 Overview...................................................................................................................................... 11-70 11.10.2 Intra-Cell Handover Requests per Cell ........................................................................................ 11-72 11.10.3 Intra-Cell Handover Commands per Cell..................................................................................... 11-73 11.10.4 Failed Intra-Cell Handovers per Cell ........................................................................................... 11-74 11.10.5 Intra-Cell AMR Handover per Cell .............................................................................................. 11-80 11.10.6 Intra-Cell Handover Detection Messages Received by BSC per Cell.......................................... 11-82 11.10.7 Intra-Cell Handover Measurement per Cell ................................................................................. 11-83 11.11 Incoming Internal Inter-Cell Handover Measurement per Cell ............................................................. 11-88 11.11.1 Overview ...................................................................................................................................... 11-88 11.11.2 Incoming Internal Inter-Cell Handover Requests per Cell ........................................................... 11-90 11.11.3 Incoming Internal Inter-Cell Handover Responses per Cell......................................................... 11-91 11.11.4 Failed Incoming Internal Inter-Cell Handovers per Cell .............................................................. 11-93 11.11.5 Incoming Internal Inter-Cell Handover Detection Messages Received by BSC per Cell ............ 11-97 11.11.6 Incoming Internal Inter-Cell Handover Analyzed Measurement per Cell.................................... 11-98 11.12 Outgoing Internal Inter-Cell Handover Measurement per Cell ........................................................... 11-100 11.12.1 Overview.................................................................................................................................... 11-100
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11.12.2 Outgoing Internal Inter-Cell Handover Requests per Cell ......................................................... 11-105 11.12.3 Outgoing Internal Inter-Cell Handover Commands per Cell ..................................................... 11-108 11.12.4 Failed Outgoing Internal Inter-Cell Handovers per Cell ............................................................ 11-111 11.12.5 Outgoing Internal Inter-Cell Handover Measurement per Cell .................................................. 11-121 11.13 Incoming External Inter-Cell Handover Measurement per Cell.......................................................... 11-126 11.13.1 Overview.................................................................................................................................... 11-126 11.13.2 Incoming External Inter-Cell Handover Requests per Cell........................................................ 11-128 11.13.3 Incoming External Inter-Cell Handover Responses per Cell ..................................................... 11-130 11.13.4 Failed Incoming External Inter-Cell Handovers per Cell........................................................... 11-131 11.13.5 Incoming External Inter-Cell Handover Detection Messages Received by BSC per Cell ......... 11-136 11.13.6 Incoming External Inter-Cell Handover Analyzed Measurement per Cell................................. 11-137 11.14 Outgoing External Inter-Cell Handover Measurement per Cell .......................................................... 11-140 11.14.1 Overview.................................................................................................................................... 11-140 11.14.2 Outgoing External Inter-Cell Handover Requests per Cell ........................................................ 11-144 11.14.3 Outgoing External Inter-Cell Handover Commands per Cell .................................................... 11-147 11.14.4 Failed Outgoing External Inter-Cell Handovers per Cell ........................................................... 11-151 11.14.5 Outgoing External Inter-Cell Handover Analyzed Measurement per Cell................................. 11-164 11.15 Incoming Inter-RAT Inter-Cell Handover Measurement per Cell ....................................................... 11-170 11.15.1 Overview.................................................................................................................................... 11-170 11.15.2 Incoming Inter-RAT Inter-Cell Handover Requests per Cell ..................................................... 11-172 11.15.3 Incoming Inter-RAT Inter-Cell Handover Responses per Cell................................................... 11-173 11.15.4 Failed Incoming Inter-RAT Inter-Cell Handovers per Cell ........................................................ 11-174 11.15.5 Incoming Inter-RAT Inter-Cell Handover Analyzed Measurement per Cell.............................. 11-176 11.16 Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell ....................................................... 11-178 11.16.1 Overview.................................................................................................................................... 11-178 11.16.2 Outgoing Inter-RAT Inter-Cell Handover Requests per Cell ..................................................... 11-181 11.16.3 Outgoing Inter-RAT Inter-Cell Handover Commands per Cell.................................................. 11-182 11.16.4 Failed Outgoing Inter-RAT Inter-Cell Handovers per Cell ........................................................ 11-183 11.16.5 Outgoing Inter-RAT Inter-Cell Handover Analyzed Measurement per Cell .............................. 11-189 11.17 GSM Cell to GSM Cell Incoming Handover Measurement................................................................ 11-193 11.17.1 Overview.................................................................................................................................... 11-193 11.17.2 Cell Incoming Handover Requests (Cell to Cell)....................................................................... 11-194 11.17.3 Failed Cell Incoming Handovers (Cell to Cell).......................................................................... 11-194 11.17.4 Cell Incoming Handover Analyzed Measurement (Cell to Cell)................................................ 11-195 11.18 GSM Cell to GSM Cell Outgoing Handover Measurement ................................................................ 11-196 11.18.1 Overview.................................................................................................................................... 11-196 11.18.2 Cell Outgoing Handover Commands (Cell to Cell) ................................................................... 11-197 11.18.3 Failed Cell Outgoing Handovers (Cell to Cell).......................................................................... 11-198 11.18.4 Cell Outgoing Handover Analyzed Measurement (Cell to Cell)................................................ 11-200 11.19 Measurement of MRs upon Handover Initiation per Cell ................................................................... 11-201 11.19.1 Overview.................................................................................................................................... 11-201 11.19.2 Measurement of MRs upon Handover Initiation (Receiving Quality) per Cell.......................... 11-202
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference 11.19.3 Mean Uplink Receiving Level during Handover Initiation per Cell .......................................... 11-203 11.19.4 Mean Uplink Receiving Quality during Handover Initiation per Cell ....................................... 11-204 11.19.5 Concentric Cell Handover Initiation MR Analyzed Measurement (Receiving Level) per Cell . 11-205 11.19.6 Concentric Cell Handover Initiation MR Analyzed Measurement (Timing Advance) per Cell. 11-206
11.20 KPI Measurement per Cell .................................................................................................................. 11-207 11.20.1 Overview.................................................................................................................................... 11-207 11.20.2 Immediate Assignment Requests ............................................................................................... 11-208 11.20.3 Immediate Assignment Commands............................................................................................ 11-209 11.20.4 SDCCH Seizure Requests .......................................................................................................... 11-209 11.20.5 Failed SDCCH Seizures due to Busy SDCCH........................................................................... 11-210 11.20.6 Successful SDCCH Seizures...................................................................................................... 11-210 11.20.7 Traffic Volume on SDCCH ........................................................................................................ 11-211 11.20.8 Traffic Volume on SDCCH ........................................................................................................ 11-212 11.20.9 Available SDCCHs..................................................................................................................... 11-212 11.20.10 Configured SDCCHs................................................................................................................ 11-212 11.20.11 TCH Seizure Requests (Signaling Channel)............................................................................. 11-213 11.20.12 Failed TCH Seizures due to Busy TCH (Signaling Channel) .................................................. 11-213 11.20.13 Successful TCH Seizures (Signaling Channel) ........................................................................ 11-214 11.20.14 Call Drops on TCH (Signaling Channel) ................................................................................. 11-214 11.20.15 Traffic Volume on TCH (Signaling Channel)........................................................................... 11-215 11.20.16 TCH Seizure Requests (Traffic Channel)................................................................................. 11-215 11.20.17 Failed TCH Seizures due to Busy TCH (Traffic Channel)....................................................... 11-216 11.20.18 Successful TCH Seizures (Traffic Channel)............................................................................. 11-216 11.20.19 Call Drops on TCH in Stable State (Traffic Channel) .............................................................. 11-216 11.20.20 TCH Seizure Requests in TCH Handovers (Traffic Channel).................................................. 11-217 11.20.21 Failed TCH Seizures in TCH Handovers due to Busy TCH (Traffic Channel)........................ 11-218 11.20.22 Successful TCH Seizures in TCH Handovers (Traffic Channel) ............................................. 11-218 11.20.23 Call Drops in TCH Handovers (Traffic Channel) .................................................................... 11-219 11.20.24 Traffic Volume on TCH (Traffic Channel) ............................................................................... 11-219 11.20.25 Available TCHs ........................................................................................................................ 11-220 11.20.26 Configured TCHs ..................................................................................................................... 11-220 11.20.27 Dual-Band Handover Requests ................................................................................................ 11-220 11.20.28 Successful Dual-Band Handovers ............................................................................................ 11-221 11.21 Calls Discarded due to Overload per LAPD........................................................................................ 11-223 11.21.1 Overview.................................................................................................................................... 11-223 11.21.2 Random Access Requests Discarded on LAPD ......................................................................... 11-223
12 MR Measurement...................................................................................................................12-1 12.1 Overview of MR Measurement.................................................................................................................12-3 12.2 Number of MRs per Cell...........................................................................................................................12-3 12.2.1 Overview of Number of MRs per Cell.............................................................................................12-3 12.2.2 Sampled MRs per Cell .....................................................................................................................12-4
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12.2.3 Analyzed MRs per Cell ....................................................................................................................12-5 12.3 Interference Band Measurement per TRX.................................................................................................12-6 12.3.1 Overview of Interference Band Measurement per TRX ..................................................................12-6 12.3.2 Sampled Measurement of Interference Band per TRX ....................................................................12-7 12.3.3 Analyzed Measurement of Interference Band per TRX ...................................................................12-8 12.4 Power Control Messages per Cell ...........................................................................................................12-10 12.4.1 Overview of Power Control Messages per Cell .............................................................................12-10 12.4.2 Number of Power Control Messages per Cell................................................................................ 12-11 12.4.3 Sampled Power Rank During Power Control per Cell...................................................................12-12 12.4.4 Analyzed Power Rank During Power Control per Cell..................................................................12-12 12.4.5 Sampled Level of Power Control Signals per Cell.........................................................................12-13 12.4.6 Analyzed Level of Power Control Signals per Cell .......................................................................12-14 12.4.7 Sampling Quality of Power Control Signals per Cell ....................................................................12-14 12.4.8 Analyzed Quality of Power Control Signals per Cell.....................................................................12-15 12.4.9 Sampled Duration of Maximum Power per Cell............................................................................12-15 12.4.10 Analyzed Duration of Maximum Power per Cell.........................................................................12-16 12.4.11 Distance Between MS and BTS per Cell .....................................................................................12-17 12.4.12 Maximum Distance Between MS and BTS per Cell....................................................................12-17 12.4.13 Number of Power Control Messages per Cell..............................................................................12-18 12.4.14 Mean Distance Between MS and BTS.........................................................................................12-18 12.5 Neighbor Cell Level Measurement per Cell............................................................................................12-18 12.5.1 Overview of Neighbor Cell Level Measurement per Cell..............................................................12-18 12.5.2 Strength of Signals in Neighbor Cells............................................................................................12-19 12.5.3 Number of MRs of Neighbor Cells ................................................................................................12-19 12.5.4 Mean Strength of Signals in Neighbor Cells..................................................................................12-20 12.6 TCHF Receive Level Measurement per TRX .........................................................................................12-20 12.7 TCHH Receive Level Measurement per TRX.........................................................................................12-29 12.8 Receive Quality Measurement per TRX .................................................................................................12-36 12.9 Uplink-and-Downlink Balance Measurement per TRX ..........................................................................12-39 12.10 Number of MRs Based on TA per TRX ................................................................................................12-41 12.11 Radio Link Failure Measurement per TRX ...........................................................................................12-43 12.11.1 Overview of Radio Link Failure Measurement per TRX.............................................................12-43 12.11.2 Uplink and Downlink Level During Radio Link Failure per TRX...............................................12-44 12.11.3 Mean Uplink and Downlink Level During Radio Link Failure per TRX ....................................12-44 12.11.4 Uplink and Downlink Quality During Radio Link Failure per TRX............................................12-46 12.11.5 Mean Uplink and Downlink Quality During Radio Link Failure per TRX..................................12-47 12.11.6 TA During Radio Link Failure per TRX ......................................................................................12-48 12.11.7 Mean TA During Radio Link Failure per TRX ............................................................................12-48 12.11.8 Sampled Radio Link Failures per TRX ........................................................................................12-49 12.12 Radio Link Failure Measurement based on TA per TRX ......................................................................12-50 12.13 RQI Measurement based on TA per TRX..............................................................................................12-52 12.13.1 Overview of RQI Measurement based on TA per TRX ...............................................................12-52
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference 12.13.2 Sampled RQI based on TA per TRX ............................................................................................12-52 12.13.3 Analyzed RQI based on TA per TRX ...........................................................................................12-55
13 Channel Measurement ..........................................................................................................13-1 13.1 Overview of Channel Measurement..........................................................................................................13-3 13.2 Channel Configuration Measurement per Cell..........................................................................................13-3 13.2.1 Overview..........................................................................................................................................13-3 13.2.2 Sampled Measurement of Initially Configured Channels ................................................................13-4 13.2.3 Analyzed Measurement of Dynamically Configured Channels .......................................................13-7 13.2.4 Analyzed Measurement of Available Channels..............................................................................13-12 13.2.5 SDCCH Availability.......................................................................................................................13-19 13.2.6 TCH Availability ............................................................................................................................13-19 13.2.7 Analyzed Measurement of Initially Configured Channels .............................................................13-20 13.3 Channel Conversion Measurement per Cell............................................................................................13-22 13.3.1 Overview........................................................................................................................................13-22 13.3.2 Channel Conversion Requests (TCHF-TCHH)..............................................................................13-23 13.3.3 Successful Channel Conversions (TCHF-TCHH) .........................................................................13-24 13.3.4 Channel Conversion Requests (TCHH-TCHF)..............................................................................13-25 13.3.5 Successful Channel Conversions (TCHH-TCHF) .........................................................................13-25 13.3.6 Number of Channel Conversions (TCH-SDCCH).........................................................................13-26 13.3.7 Number of Channel Conversions (SDCCH-TCH).........................................................................13-27 13.4 Channel Busy Duration Measurement per Cell.......................................................................................13-27 13.4.1 Overview........................................................................................................................................13-27 13.4.2 Busy State Duration of All Channels (SDCCH/TCHF/TCHH) .....................................................13-28 13.4.3 Mean Duration of Busy State for All Channels (SDCCH/TCHF/TCHH)......................................13-29 13.5 Measurement of Maximum Busy Channels per Cell...............................................................................13-30 13.6 Channel State Measurement per Cell ......................................................................................................13-31 13.6.1 Overview........................................................................................................................................13-31 13.6.2 Mean Number of Busy Signaling Channels (SDCCH/TCHF/TCHH)...........................................13-32 13.6.3 Mean Number of Busy TCHs (TCHF/TCHH)...............................................................................13-33 13.6.4 Mean Number of Blocked Channels ..............................................................................................13-34 13.6.5 Mean Number of Idle Channels .....................................................................................................13-35 13.6.6 Mean Number of Busy TCHs (Overlaid Subcell) ..........................................................................13-36 13.6.7 Mean Number of Busy TCHs (Underlaid Subcell) ........................................................................13-36 13.6.8 Mean Number of Busy Signaling Channels (SDCCH/TCHF/TCHH)...........................................13-37 13.6.9 Mean Number of Busy TCHs (TCHF/TCHH)...............................................................................13-38 13.7 Channel Assignment Request Measurement per Cell..............................................................................13-38 13.7.1 Overview........................................................................................................................................13-38 13.7.2 Channel Assignment Requests in Immediate Assignment Procedure (SDCCH/TCHF/TCHH/TCH)1339 13.7.3 Channel Assignment Requests in Assignment Procedure (TCHF/TCHH/TCH) ...........................13-41 13.7.4 Channel Assignment Requests in Internal Intra-Cell Handover Procedure (SDCCH/TCHF/TCHH/TCH) ..................................................................................................................13-42
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13.7.5 Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (SDCCH/TCHF/TCHH/TCH) ..................................................................................................................13-43 13.7.6 Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (SDCCH/TCHF/TCHH/TCH) ..................................................................................................................13-45 13.7.7 Channel Assignment Requests (SDCCH) ......................................................................................13-46 13.7.8 Channel Assignment Requests (TCHF) .........................................................................................13-47 13.7.9 Channel Assignment Requests (TCHH).........................................................................................13-47 13.7.10 Channel Assignment Requests (TCH) .........................................................................................13-48 13.8 Channel Assignment Success Measurement per TRX.............................................................................13-49 13.8.1 Overview........................................................................................................................................13-49 13.8.2 Successful Channel Assignments in Immediate Assignment Procedure (SDCCH/ TCHF/TCHH)13-50 13.8.3 Successful Channel Assignments in Assignment Procedure (TCHF/TCHH) ................................13-51 13.8.4 Successful Channel Assignments in Internal Intra-Cell Handover Procedure (SDCCH/TCHF/TCHH) ..................................................................................................................................................................13-52 13.8.5 Successful Channel Assignments in Incoming Internal Inter-Cell Handover Procedure (SDCCH/TCHF/TCHH) ...........................................................................................................................13-53 13.8.6 Successful Channel Assignments in Incoming External Inter-Cell Handover Procedure (SDCCH/ TCHF/TCHH)...........................................................................................................................................13-54 13.8.7 Successful Channel Assignments (SDCCH) ..................................................................................13-55 13.8.8 Successful Channel Assignments (TCHF) .....................................................................................13-55 13.8.9 Successful Channel Assignments (TCHH) ....................................................................................13-56 13.8.10 Successful Channel Assignments (TCH) .....................................................................................13-57 13.9 Channel Assignment Failure Measurement per Cell ...............................................................................13-57 13.9.1 Overview........................................................................................................................................13-57 13.9.2 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (SDCCH) .............................................................................................................13-59 13.9.3 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (TCHF) ................................................................................................................13-59 13.9.4 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (TCHH)................................................................................................................13-60 13.9.5 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Assignment Procedure (TCHF/TCHH) ........................................................................................................................13-61 13.9.6 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (SDCCH).................................................................................................................13-61 13.9.7 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (TCHF/TCHH)........................................................................................................13-62 13.9.8 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (SDCCH) ................................................................................................13-63 13.9.9 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (TCHF/ TCHH).......................................................................................13-64 13.9.10 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (SDCCH) ................................................................................................13-65 13.9.11 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (TCHF/ TCHH).......................................................................................13-65 13.9.12 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (SDCCH) .........13-66
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference 13.9.13 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCHF) ............13-67 13.9.14 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCHH) ...........13-68 13.9.15 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCH) ..............13-69
13.10 Channel Assignment Concentric Cell Measurement per Cell ...............................................................13-69 13.10.1 Overview......................................................................................................................................13-69 13.10.2 Channel Assignment Requests of Concentric Cell.......................................................................13-70 13.10.3 TCH Assignment Requests of Concentric Cell ............................................................................13-71 13.10.4 Assignment Requests of Concentric Cell in Incoming Internal Inter-Cell Handover Procedure (TCH) ..................................................................................................................................................................13-72 13.10.5 Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (TCH).....13-73 13.10.6 Channel Assignment Overflows (TCH) (Underlaid Subcell Preferred or Overlaid Subcell Preferred) ..................................................................................................................................................................13-74 13.10.7 Channel Assignment Overflows in Concentric Cell in Incoming Internal Inter-Cell Handover Procedure (TCH).......................................................................................................................................13-74 13.10.8 Channel Assignment Overflows in Concentric Cell in Incoming External Inter-Cell Handover Procedure (TCH).......................................................................................................................................13-75 13.10.9 Channel Assignment Overflows in Concentric Cell (TCH) .........................................................13-76 13.10.10 Channel Assignment Overflows in Concentric Cell (SDCCH)..................................................13-77 13.10.11 Channel Assignment Overflows in Concentric Cell (TCHF) .....................................................13-77 13.10.12 Channel Assignment Overflows in Concentric Cell (TCHH) ....................................................13-78 13.10.13 Failed Handovers from Underlaid Subcell to Overlaid Subcell due to Busy Channels in Overlaid Subcell ......................................................................................................................................................13-79 13.10.14 Failed Handovers from Overlaid Subcell to Underlaid Subcell due to Busy Channels in Underlaid Subcell ......................................................................................................................................................13-79 13.11 Channel Assignment Queue Measurement per Cell ..............................................................................13-80 13.11.1 Overview......................................................................................................................................13-80 13.11.2 Maximum Queue Length .............................................................................................................13-80 13.11.3 Total Queue Length......................................................................................................................13-81 13.11.4 Sampled Queuings .......................................................................................................................13-81 13.11.5 Total Queuing Duration................................................................................................................13-81 13.11.6 Channel Assignment Queue Measurement...................................................................................13-82 13.11.7 Mean Queue Length.....................................................................................................................13-83 13.11.8 Mean Queuing Duration...............................................................................................................13-84 13.11.9 Failed Queuings ...........................................................................................................................13-84 13.12 Channel Assignment GPRS Measurement per Cell ..............................................................................13-84 13.12.1 Overview......................................................................................................................................13-84 13.12.2 Requests for TCH from the PCU .................................................................................................13-85 13.12.3 Successful TCH Requests from the PCU .....................................................................................13-85
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Figures Figure 1-1 SCCP Measurement..........................................................................................................................1-3 Figure 2-1 MTP3 Measurement .........................................................................................................................2-3 Figure 3-1 LAPD link measurement ..................................................................................................................3-3 Figure 10-1 MSC-initiated paging procedure for CS service ...........................................................................10-3 Figure 10-2 SGSN-initiated paging procedure for CS service .........................................................................10-4 Figure 10-3 SGSN-initiated paging procedure for PS service..........................................................................10-5 Figure 10-4 BSC-delivered CS paging procedure ............................................................................................10-6 Figure 10-5 CS paging procedure.....................................................................................................................10-7 Figure 10-6 PS paging procedure .....................................................................................................................10-8 Figure 11-1 Immediate assignment procedure................................................................................................ 11-46 Figure 11-2 trigger points of the counters of Immediate Assignment Commands per Cell............................ 11-48 Figure 11-3 Trigger points of the counters of Call Setup Indications............................................................. 11-50 Figure 11-4 Trigger points of the counters of Rejects to Service Requests per Cell ...................................... 11-52 Figure 11-5 Trigger point of the counters of Assignment Requests per Cell.................................................. 11-58 Figure 11-6 Trigger Point of the counters of Assignment Commands per Cell.............................................. 11-59 Figure 11-7 Trigger points of the counters of Completed Assignments per Cell............................................ 11-61 Figure 11-8 Trigger points of the counters of Mode Modify Commands per Cell ......................................... 11-65 Figure 11-9 Trigger points of the counters of Failed Mode Modify Attempts per Cell .................................. 11-67 Figure 11-10 Intra-cell handover procedure ................................................................................................... 11-71 Figure 11-11 Trigger points of the counters of Failed Intra-Cell Handovers per Cell .................................... 11-78 Figure 11-12 Incoming internal inter-cell handover ....................................................................................... 11-89 Figure 11-13 Trigger points of the counters of Failed Incoming Internal Inter-Cell Handovers per Cell ...... 11-96 Figure 11-14 Outgoing internal inter-cell handover (excluding directed retry)............................................ 11-102 Figure 11-15 Outgoing internal inter-cell handover (directed retry) ............................................................ 11-104 Figure 11-16 Trigger points of the counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Excluding Directed Retry) ........................................................................................................................... 11-117
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Figure 11-17 Trigger points of the counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Directed Retry) ............................................................................................................................................................ 11-118 Figure 11-18 Incoming external inter-cell handover .................................................................................... 11-127 Figure 11-19 Trigger points of the counters of Failed Incoming External Inter-Cell Handovers per Cell BSC. 11134 Figure 11-20 Outgoing external inter-cell handover (excluding directed retry) ........................................... 11-141 Figure 11-21 Outgoing external inter-cell handover (Directed Retry) ......................................................... 11-143 Figure 11-22 Trigger points of Failed Outgoing External Inter-Cell Handovers (Excluding Directed Retry) ... 11159 Figure 11-23 Failed Outgoing External Inter-Cell Handovers (Directed Retry) .......................................... 11-160 Figure 11-24 Incoming inter-RAT inter-cell handover procedure ................................................................ 11-171 Figure 11-25 Incoming inter-RAT inter-cell handover procedure ................................................................ 11-175 Figure 11-26 Outgoing inter-RAT inter-cell handover procedure (excluding directed retry) ....................... 11-179 Figure 11-27 Outgoing inter-RAT inter-cell handover procedure (including directed retry)........................ 11-180 Figure 11-28 Outgoing inter-RAT inter-cell handover procedure (excluding directed retry) ....................... 11-186 Figure 11-29 Outgoing inter-RAT inter-cell handover procedure (including directed retry)........................ 11-187 Figure 13-1 Channel assignment in the immediate assignment procedure.....................................................13-40 Figure 13-2 Channel assignment in the assignment procedure ......................................................................13-42 Figure 13-3 Channel assignment in the internal intra-cell handover procedure .............................................13-43 Figure 13-4 Channel assignment in the incoming internal inter-cell handover procedure .............................13-44 Figure 13-5 Channel assignment in the incoming external inter-cell handover procedure.............................13-46 Figure 13-6 Channel assignment in the immediate assignment procedure.....................................................13-51
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Tables Table 1-1 Measurement unit of SCCP Measurement..........................................................................................1-2 Table 1-2 Counters of SCCP OSP Measurement ................................................................................................1-2 Table 2-1 MTP3 Measurement Units..................................................................................................................2-2 Table 2-2 Counters of MTP3 Link Measurement ...............................................................................................2-2 Table 3-1 Measurement unit of LAPD Measurement.........................................................................................3-2 Table 3-2 Counters of LAPD Link Measurement...............................................................................................3-2 Table 4-1 Measurement unit of System Load Measurement ..............................................................................4-2 Table 4-2 Counters of CPU Usage Measurement ...............................................................................................4-2 Table 5-1 Measurement units of BTSM Measurement.......................................................................................5-2 Table 5-2 Counters of BTS State Measurement per BTS ...................................................................................5-2 Table 5-3 Counters of BTS Configuration Measurement per BM Subrack ........................................................5-5 Table 5-4 Counters of Cell State Measurement per Cell.....................................................................................5-7 Table 5-5 Counters of Cell Configuration Measurement per BM Subrack....................................................... 5-11 Table 5-6 Counters of TRX State Measurement per TRX ................................................................................5-12 Table 5-7 Counters of TRX Configuration Measurement per BM Subrack .....................................................5-13 Table 5-8 Counters of CRC Error Measurement per BTS ................................................................................5-14 Table 5-9 Counters of Duration of CRC Error on Ports 0 Through 23 .............................................................5-15 Table 5-10 Counter of CRC Serious Error Measurement per BTS...................................................................5-16 Table 5-11 Counters of Duration of Serious CRC Error on Ports 0 Through 23 ..............................................5-16 Table 5-12 Counters of OML Measurement per BTS.......................................................................................5-18 Table 5-13 Counters of RSL Measurement per TRX........................................................................................5-28 Table 6-1 Measurement Units of Resources Measurement.................................................................................6-2 Table 6-2 Counters of A Interface Circuit Measurement per DPC .....................................................................6-2 Table 6-3 Counters of TC Measurement per DPC..............................................................................................6-6 Table 6-4 Counters of Pb Interface Circuit Measurement per PCU....................................................................6-8 Table 6-5 Counters of Ater Interface Circuit Measurement per BM Subrack................................................... 6-11
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Tables
HUAWEI BSC6000 Base Station Controller Performance Counter Reference Table 7-1 Measurement Unit of MSC Measurement ..........................................................................................7-2 Table 7-2 Counters of MSC Measurement per DPC...........................................................................................7-2 Table 8-1 Measurement unit of CBC measurement............................................................................................8-2 Table 8-2 Counters of CBC Measurement..........................................................................................................8-2 Table 9-1 Measurement units of PCU Measurement ..........................................................................................9-2 Table 9-2 Counters of PCU Measurement per BSC ...........................................................................................9-2 Table 9-3 Counter of PCU Measurement per PCU.............................................................................................9-3 Table 10-1 Measurement units of Paging Measurement...................................................................................10-2 Table 10-2 Counters of Measurement of the Paging on the A Interface per BSC.............................................10-2 Table 10-3 Counters of Measurement of the Paging on the Abis Interface per Cell.........................................10-6 Table 10-4 Counters of Measurement of Discarded Paging Messages due to Overload per LAPD .................10-8 Table 11-1 Measurement units of call measurement......................................................................................... 11-3 Table 11-2 Counters of Call Duration Measurement per BSC.......................................................................... 11-4 Table 11-3 Counters of Flow Control Measurement per Cell ........................................................................... 11-5 Table 11-4 Counters of Short Message Measurement per Cell....................................................................... 11-12 Table 11-5 Counter classification of Call Drop Measurement per Cell .......................................................... 11-16 Table 11-6 Counters of Call Drop Sampled Measurement per Cell................................................................ 11-16 Table 11-7 Counters of Call Drop Analyzed Measurement per Cell............................................................... 11-21 Table 11-8 Counter classification of Channel Activation Measurement per Cell ........................................... 11-29 Table 11-9 Counters of SDCCH Connection Measurement per Cell.............................................................. 11-30 Table 11-10 TCH Connection Measurement per Cell..................................................................................... 11-32 Table 11-11 Counters of Channel Activation Analyzed Measurement per Cell.............................................. 11-37 Table 11-12 Counters of Channel Seizure Measurement per TRX ................................................................. 11-42 Table 11-13 Counter classification of Immediate Assignment Measurement per Cell ................................... 11-46 Table 11-14 Counters of Channel Requests per Cell ...................................................................................... 11-46 Table 11-15 Counters of Immediate Assignment Commands per Cell ........................................................... 11-47 Table 11-16 Counters of Call Setup Indications ............................................................................................. 11-49 Table 11-17 Counter of Rejects to Service Requests per Cell ........................................................................ 11-51 Table 11-18 Counters of Immediate Assignment Analyzed Measurement per Cell........................................ 11-52 Table 11-19 Counter classification of Assignment Measurement per Cell ..................................................... 11-55 Table 11-20 Counters of Assignment Requests per Cell................................................................................. 11-55 Table 11-21 Counters of Assignment Commands per Cell ............................................................................. 11-58 Table 11-22 Counters of Completed Assignments per Cell ............................................................................ 11-60
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Table 11-23 Counters of Failed Assignments per Cell.................................................................................... 11-61 Table 11-24 Counters of Mode Modify Commands per Cell.......................................................................... 11-64 Table 11-25 Counters of Failed Mode Modify Attempts per Cell .................................................................. 11-66 Table 11-26 Counters of Assignment Procedure Analyzed Measurement per Cell ........................................ 11-68 Table 11-27 Counter classification of Intra-Cell Handover Requests per Cell ............................................... 11-71 Table 11-28 Counters of Internal Intra-Cell Handover Requests per Cell ...................................................... 11-72 Table 11-29 Counters of Intra-Cell Handover Commands per Cell................................................................ 11-73 Table 11-30 Counters of Failed Intra-Cell Handovers per Cell ...................................................................... 11-74 Table 11-31 Counters of Intra-Cell AMR Handover per Cell ......................................................................... 11-80 Table 11-32 Counters of Intra-Cell Handover Detection Messages Received by BSC per Cell..................... 11-82 Table 11-33 Counters of Intra-Cell Handover Measurement per Cell ............................................................ 11-83 Table 11-34 Counter classification of Incoming Internal Inter-Cell Handover Measurement per Cell .......... 11-89 Table 11-35 Counters of Incoming Internal Inter-Cell Handover Requests per Cell ...................................... 11-90 Table 11-36 Counters of Incoming Internal Inter-Cell Handover Responses per Cell.................................... 11-91 Table 11-37 Counters of Failed Incoming Internal Inter-Cell Handovers per Cell......................................... 11-93 Table 11-38 Counters of Incoming Internal Inter-Cell Handover Detection Messages Received by BSC per Cell ......................................................................................................................................................................... 11-97 Table 11-39 Counters of Incoming Internal Inter-Cell Handover Analyzed Measurement per Cell............... 11-98 Table 11-40 Counter classification of Outgoing Internal Inter-Cell Handover Measurement per Cell......... 11-104 Table 11-41 Counters of Outgoing Internal Inter-Cell Handover Requests per Cell (Excluding Directed Retry) ....................................................................................................................................................................... 11-105 Table 11-42 Counters of Outgoing Internal Inter-Cell Handover Requests per Cell (Directed Retry) ......... 11-106 Table 11-43 Counters of Outgoing Internal Inter-Cell Handover Commands per Cell (Excluding Directed Retry) ....................................................................................................................................................................... 11-108 Table 11-44 Counters of Outgoing Internal Inter-Cell Handover Commands per Cell (Directed Retry) ..... 11-109 Table 11-45 Counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Excluding Directed Retry). 11111 Table 11-46 Counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Directed Retry) ............ 11-113 Table 11-47 Counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Including Directed Retry).. 11113 Table 11-48 Counters of Outgoing Internal Inter-Cell Handover Measurement per Cell ............................. 11-121 Table 11-49 Counter classification of Incoming External Inter-Cell Handover Measurement per Cell ....... 11-127 Table 11-50 Counters of Incoming External Inter-Cell Handover Requests per Cell ................................... 11-128 Table 11-51 Counters of Incoming External Inter-Cell Handover Responses per Cell................................. 11-130 Table 11-52 Counters of Failed Incoming External Inter-Cell Handovers per Cell...................................... 11-131
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference Table 11-53 Counters of Incoming External Inter-Cell Handover Detection Messages Received by BSC per Cell ....................................................................................................................................................................... 11-136 Table 11-54 Counters of Incoming External Inter-Cell Handover Analyzed Measurement per Cell............ 11-137 Table 11-55 Counter classification of outgoing External Inter-Cell Handover Measurement per Cell ........ 11-144 Table 11-56 Counters of Outgoing External Inter-Cell Handover Requests per Cell (Excluding Directed Retry) ....................................................................................................................................................................... 11-144 Table 11-57 Counters of Outgoing External Inter-Cell Handover Requests per Cell (Directed Retry) ........ 11-145 Table 11-58 Counters of Outgoing External Inter-Cell Handover Requests per Cell (Including Directed Retry) ....................................................................................................................................................................... 11-146 Table 11-59 Counters of Outgoing External Inter-Cell Handover Commands per Cell (Excluding Directed Retry) ....................................................................................................................................................................... 11-147 Table 11-60 Counters of Outgoing External Inter-Cell Handover Commands per Cell (Directed Retry) .... 11-148 Table 11-61 Counters of Outgoing External Inter-Cell Handover Commands per Cell (Including Directed Retry) ....................................................................................................................................................................... 11-149 Table 11-62 Counters of Failed Outgoing External Inter-Cell Handovers per Cell (Excluding Directed Retry) 11151 Table 11-63 Counters of Failed Outgoing External Inter-Cell Handovers per Cell (Directed Retry) ........... 11-153 Table 11-64 Counters of Failed Outgoing External Inter-Cell Handovers per Cell (Including Directed Retry). 11154 Table 11-65 Counters of Outgoing External Inter-Cell Handover Analyzed Measurement per Cell............ 11-164 Table 11-66 Counter types of Incoming Inter-RAT Inter-Cell Handover Measurement per Cell ................. 11-171 Table 11-67 Counters of Incoming Inter-RAT Inter-Cell Handover Requests per Cell ................................ 11-172 Table 11-68 Counters of Incoming Inter-RAT Inter-Cell Handover Responses per Cell.............................. 11-173 Table 11-69 Counters of Failed Incoming Inter-RAT Inter-Cell Handovers per Cell ................................... 11-174 Table 11-70 Counters of Incoming Inter-RAT Inter-Cell Handover Analyzed Measurement per Cell ......... 11-176 Table 11-71 Counter types of Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell ................. 11-180 Table 11-72 Counters of Outgoing Inter-RAT Inter-Cell Handover Requests per Cell ................................ 11-181 Table 11-73 Counters of Outgoing Inter-RAT Inter-Cell Handover Commands per Cell............................. 11-182 Table 11-74 Counters of Failed Outgoing Inter-RAT Inter-Cell Handovers per Cell ................................... 11-183 Table 11-75 Counters of Outgoing Inter-RAT Inter-Cell Handover Analyzed Measurement per Cell ......... 11-189 Table 11-76 Counter types of CGSM Cell to GSM Cell Incoming Handover Measurement ....................... 11-194 Table 11-77 Counter of Failed Cell Incoming Handovers (Cell to Cell) ...................................................... 11-194 Table 11-78 Counters of Cell Incoming Handover Analyzed Measurement (Cell to Cell)........................... 11-195 Table 11-79 Counter types of GSM Cell to GSM Cell Outgoing Handover................................................. 11-197 Table 11-80 Counters of Cell Outgoing Handover Commands (Cell to Cell) .............................................. 11-197 Table 11-81 Counters of Failed Cell Outgoing Handovers (Cell to Cell) ..................................................... 11-198
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Table 11-82 Counters of Cell Outgoing Handover Analyzed Measurement................................................. 11-200 Table 11-83 Counter types of Measurement of MRs upon Handover Initiation per Cell ............................. 11-201 Table 11-84 Counters of Measurement of MRs upon Handover Initiation (Receiving Quality) per Cell..... 11-202 Table 11-85 Counters of Concentric Cell Handover Initiation MR Analyzed Measurement (Receiving Level) per Cell................................................................................................................................................................ 11-205 Table 11-86 Counters of Concentric Cell Handover Initiation MR Analyzed Measurement (Timing Advance) per Cell.......................................................................................................................................................... 11-206 Table 11-87 Counters of KPI Measurement per Cell.................................................................................... 11-207 Table 11-88 Counter of Calls Discarded due to Overload per LAPD........................................................... 11-223 Table 12-1 Measurement units of MR Measurement........................................................................................12-3 Table 12-2 Counters of Number of MRs per Cell.............................................................................................12-4 Table 12-3 Counters of Sampled MRs per Cell ................................................................................................12-4 Table 12-4 Counters of Analyzed MRs per Cell ...............................................................................................12-5 Table 12-5 Power level range of the interference band.....................................................................................12-7 Table 12-6 Counters of Interference Band Measurement per TRX ..................................................................12-7 Table 12-7 Counters of Sampled Measurement of Interference Band ..............................................................12-7 Table 12-8 Counters of Analyzed Measurement of Interference Band per TRX ..............................................12-8 Table 12-9 Counters of Power Control Messages per Cell .............................................................................12-10 Table 12-10 Counters of Number of Power Control Messages per Cell......................................................... 12-11 Table 12-11 Counters of Sampled Power Rank During Power Control per Cell ............................................12-12 Table 12-12 Counters of Analyzed Power Rank During Power Control per Cell...........................................12-12 Table 12-13 Counters of Sampled Level of Power Control Signals per Cell..................................................12-13 Table 12-14 Counters of Analyzed Level of Power Control Signals per Cell ................................................12-14 Table 12-15 Counters of Quality of Power Control Signals per Cell..............................................................12-14 Table 12-16 Counters of Analyzed Quality of Power Control Signals per Cell..............................................12-15 Table 12-17 Counters of Sampled Duration of Maximum Power per Cell.....................................................12-15 Table 12-18 Counters of Analyzed Duration of Maximum Power per Cell....................................................12-16 Table 12-19 Counters of Neighbor Cell Level Measurement per Cell ...........................................................12-19 Table 12-20 Rank of the receive level ............................................................................................................12-20 Table 12-21 Rank of the receive quality based on the bit error rate ...............................................................12-21 Table 12-22 Counters of TCHF Receive Level Measurement per TRX .........................................................12-21 Table 12-23 Counters of TCHH Receive Level Measurement per TRX ........................................................12-29 Table 12-24 Counters of Receive Quality Measurement per TRX .................................................................12-36 Table 12-25 Mapping between the uplink/downlink balance rank and the receive level ...............................12-40
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference Table 12-26 Counters of Uplink-and-Downlink Balance Measurement per TRX..........................................12-40 Table 12-27 Counters of Number of MRs based on TA per TRX...................................................................12-41 Table 12-28 Counters of Radio Link Failure Measurement per TRX.............................................................12-43 Table 12-29 Counters of Uplink and Downlink Level During Radio Link Failure per TRX .........................12-44 Table 12-30 Counters of Mean Uplink and Downlink Level During Radio Link Failure per TRX ...............12-44 Table 12-31 Counters of Uplink and Downlink Quality During Radio Link Failure per TRX ......................12-46 Table 12-32 Counters of Mean Quality of Uplink and Downlink During Radio Link Failure per TRX ........12-47 Table 12-33 Counters of TA During Radio Link Failure per TRX .................................................................12-48 Table 12-34 Counters of Mean TA During Radio Link Failure per TRX .......................................................12-48 Table 12-35 Counters of Sampled Radio Link Failures per TRX...................................................................12-49 Table 12-36 Counters of Radio Link Failure Measurement based on TA per TRX ........................................12-50 Table 12-37 Counters of RQI Measurement based on TA per TRX ...............................................................12-52 Table 12-38 Counters of Sampled RQI based on TA per TRX .......................................................................12-52 Table 12-39 Counters of Analyzed RQI based on TA per TRX ......................................................................12-55 Table 13-1 Measurement units of Channel Measurement.................................................................................13-3 Table 13-2 Classification of the counters in the Channel Configuration Measurement per Cell measurement unit ...........................................................................................................................................................................13-4 Table 13-3 Counters in the Sampled Measurement of Initially Configured Channels measurement unit ........13-4 Table 13-4 Counters in the Analyzed Measurement of Dynamically Configured Channels measurement unit13-7 Table 13-5 Counters in the Analyzed Measurement of Available Channels measurement unit......................13-12 Table 13-6 Counters in the Analyzed Measurement of Initially Configured Channels measurement unit .....13-20 Table 13-7 Counters in the Channel Conversion Measurement per Cell measurement unit...........................13-23 Table 13-8 Classification of the counters in the Channel Busy Duration Measurement per Cell measurement unit ..................................................................................................................................................................13-27 Table 13-9 Counters in the Busy State Duration of All Channels (SDCCH/TCHF/TCHH) measurement unit .1328 Table 13-10 Counters in the Mean Duration of Busy State for All Channels (SDCCH/TCHF/TCHH) measurement unit ............................................................................................................................................13-29 Table 13-11 Counters in the Measurement of Maximum Busy Channels per Cell measurement unit............13-30 Table 13-12 Classification of the counters in the Channel State Measurement per Cell measurement unit ...13-31 Table 13-13 Counters in the Mean Number of Busy Signaling Channels (SDCCH/TCHF/TCHH) measurement unit ..................................................................................................................................................................13-32 Table 13-14 Counters in the Mean Number of Busy TCHs (TCHF/TCHH) measurement unit.....................13-33 Table 13-15 Counters in the Mean Number of Blocked Channels measurement unit ....................................13-34 Table 13-16 Counters in the Mean Number of Idle Channels measurement unit ...........................................13-35
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Table 13-17 Counters in the Mean Number of Busy Signaling Channels (SDCCH/TCHF/TCHH) measurement unit ..................................................................................................................................................................13-37 Table 13-18 Counters in the Mean Number of Busy TCHs (TCHF/TCHH) measurement unit.....................13-38 Table 13-19 Classification of the counters in the Channel Assignment Request Measurement per Cell measurement unit ............................................................................................................................................13-39 Table 13-20 Counters in the Channel Assignment Requests in Immediate Assignment Procedure (SDCCH/TCHF/TCHH/TCH) measurement unit ...........................................................................................13-39 Table 13-21 Counters in the Channel Assignment Requests in Assignment Procedure (TCHF/TCHH/TCH) measurement unit ............................................................................................................................................13-41 Table 13-22 Counters in the Channel Assignment Requests in Internal Intra-Cell Handover Procedure (SDCCH/TCHF/TCHH/TCH) measurement unit ...........................................................................................13-42 Table 13-23 Counters in the Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (SDCCH/TCHF/TCHH/TCH) measurement unit ...........................................................................................13-43 Table 13-24 Counters in the Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure measurement unit ...........................................................................................................................13-45 Table 13-25 Classification of the counters in the Channel Assignment Success Measurement per TRX measurement unit ............................................................................................................................................13-49 Table 13-26 Counters in the Channel Assignment Success Measurement per TRX measurement unit .........13-50 Table 13-27 Counters in the Successful Channel Assignments in Assignment Procedure (TCHF/TCHH) measurement unit ............................................................................................................................................13-51 Table 13-28 Counters in the Successful Channel Assignments in Internal Intra-Cell Handover Procedure (SDCCH/TCHF/TCHH) .................................................................................................................................13-52 Table 13-29 Counters in the Successful Channel Assignments in Incoming Internal Inter-Cell Handover Procedure (SDCCH/TCHF/TCHH) measurement unit ...................................................................................13-53 Table 13-30 Counters in the Successful Channel Assignments in Incoming External Inter-Cell Handover Procedure (SDCCH/ TCHF/TCHH) measurement unit ..................................................................................13-54 Table 13-31 Classification of the counters in the Channel Assignment Failure Measurement per Cell measurement unit ............................................................................................................................................13-58 Table 13-32 Counters in the Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Assignment Procedure (TCHF/TCHH) measurement unit .............................................................................13-61 Table 13-33 Counters in the Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (TCHF/TCHH) measurement unit ...................................................13-62 Table 13-34 Counters in the Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (TCHF/ TCHH) measurement unit ..................................13-64 Table 13-35 Counters in the Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (TCHF/ TCHH) measurement unit.................................13-65 Table 13-36 Counter classification of Channel Assignment Concentric Cell Measurement per Cell.............13-70 Table 13-37 Channel Assignment Requests of Concentric Cell .....................................................................13-70 Table 13-38 Counters of TCH Assignment Requests of Concentric Cell .......................................................13-71 Table 13-39 Counters of Channel Assignment Requests of Concentric Cell in Incoming Internal Inter-Cell Handover Procedure (TCH ) ...........................................................................................................................13-72
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference Table 13-40 Counters of Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (TCH) ..............................................................................................................................................................13-73 Table 13-41 Counters of Channel Assignment Overflows (TCH) (Underlaid Subcell Preferred or Overlaid Subcell Preferred)............................................................................................................................................13-74 Table 13-42 Counters of Channel Assignment Overflows in Concentric Cell in Incoming Internal Inter-Cell Handover Procedure (TCH) ............................................................................................................................13-74 Table 13-43 Counters of Channel Assignment Overflows in Concentric Cell in Incoming External Inter-Cell Handover Procedure (TCH) ............................................................................................................................13-75 Table 13-44 Counters of Channel Assignment Overflows in Concentric Cell (TCH) ....................................13-76 Table 13-45 Counters of Channel Assignment Overflows in Concentric Cell (SDCCH)...............................13-77 Table 13-46 Counters of Channel Assignment Overflows in Concentric Cell (TCHF)..................................13-77 Table 13-47 Counters of Channel Assignment Overflows in Concentric Cell (TCHH) .................................13-78 Table 13-48 Measurement units of Channel Assignment Queue Measurement per Cell................................13-80 Table 13-49 Counters of Channel Assignment Queue Measurement .............................................................13-82 Table 13-50 Counters of Channel Assignment GPRS Measurement per Cell ................................................13-85
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1
SCCP Measurement
About This Chapter The following table lists the sections of this chapter. Section
Describes
1.1 Overview of SCCP Measurement
Introduces the functions and measurement unit of the SCCP Measurement.
1.2 SCCP OSP Measurement
Describes the functions and counters of SCCP OSP Measurement.
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1.1 Overview of SCCP Measurement SCCP Measurement refers to the measurement of SCCP original signaling points (OSPs). Table 1-1 lists the measurement unit of SCCP Measurement. Table 1-1 Measurement unit of SCCP Measurement Measurement Unit
Section
SCCP OSP Measurement
1.2
1.2 SCCP OSP Measurement 1.2.1 Overview of SCCP OSP Measurement SCCP OSP Measurement refers to the measurement of the number of various messages the SCCP sends or receives. Table 1-2 lists the counters of SCCP OSP Measurement. Table 1-2 Counters of SCCP OSP Measurement
1-2
Counter
Section
L7001: Number of Sent UDT Messages
1.2.2
L7002: Number of Received UDT Messages
1.2.3
L7003: Number of Sent XUDT Messages
1.2.4
L7004: Number of Received XUDT Messages
1.2.5
L7005: Number of Sent CR Messages
1.2.6
L7006: Number of Received CR Messages
1.2.7
L7007: Number of Sent CREFR Messages
1.2.8
L7008: Number of Received CREFR Messages
1.2.9
RL7009: Ratio of CREF by Peer SCCP
1.2.10
RL7010: Ratio of CREF by Local SCCP
1.2.11
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1.2.2 Number of Sent UDT Messages Counter L7001: Number of Sent UDT Messages.
Meaning This counter measures the number of Unitdata (UDT) meassages sent by the SCCP.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. Figure 1-1 SCCP Measurement
A interface BSC
MSC
This counter is measured when the SCCP sends a UDT message.
Formula None.
1.2.3 Number of Received UDT Messages Counter L7002: Number of Received UDT Messages.
Meaning This counter measures the number of UDT meassage received by the SCCP.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. This counter is measured when the SCCP receives a UDT message.
Formula None.
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1.2.4 Number of Sent XUDT Messages Counter L7003: Number of Sent XUDT Messages.
Meaning This counter measures the number of Extended Unit Data (XUDT) messages sent by the SCCP.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. This counter is measured when the SCCP sends an XUDT message.
Formula None.
1.2.5 Number of Received XUDT Messages Counter L7004: Number of Received XUDT Messages.
Meaning This counter measures the number of XUDT messages received by the SCCP.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. This counter is measured when the SCCP receives an XUDT message.
Formula None.
1.2.6 Number of Sent CR Messages Counter L7005: Number of Sent CR Messages.
Meaning This counter measures the number of Connection Request (CR) messages sent by the SCCP.
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Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. This counter is measured when the SCCP sends a CR message.
Formula None.
1.2.7 Number of Received CR Messages Counter L7006: Number of Received CR Messages.
Meaning This counter measures the number of CR messages received by the SCCP.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. This counter is measured when the SCCP receives a CR message.
Formula None.
1.2.8 Number of Sent CREF Messages Counter L7007: Number of Sent CREF Messages.
Meaning This counter measures the number of Connection Refused (CREF) messages sent by the SCCP.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. This counter is measured when the SCCP sends a CREF message.
Formula None.
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1.2.9 Number of Received CREF Messages Counter L7008: Number of Received CREF Messages.
Meaning This counter measures the number of CREF messages received by the SCCP.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. This counter is measured when the SCCP receives a CREF message.
Formula None.
1.2.10 Ratio of CREF by Peer SCCP Counter RL7009: Ratio of CREF by Peer SCCP.
Meaning This counter is predefined. It measures the ratio of the Number of Received CREF Messages to Number of Sent CR Messages.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. This counter is measured when the measurement results are reported in a GP.
Formula Ratio of CREF by Peer SCCP (%) = Number of Received CREF Messages *100/ Number of Sent CR Messages.
1.2.11 Ratio of CREF by Local SCCP Counter RL7010: Ratio of CREF by Local SCCP.
Meaning This counter is predefined. It measures the ratio of the Number of Sent CREF Messages to Number of Received CR Messages.
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Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. This counter is measured when the measurement results are reported in a GP.
Formula Ratio of CREF by Local SCCP (%) = Number of Sent CREF Messages *100/ Number of Received CR Messages
1.2.12 Received CC Messages Counter L7011: Received CC Messages.
Meaning This counter measures the number of times the SCCP module receives a Connection Confirm (CC) message.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. The measurement is triggered when the SCCP module receives a CC message.
Formula None.
1.2.13 Sent CC Messages Counter L7012: Sent CC Messages.
Meaning This counter measures the number of times the SCCP module sends a CC message.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. The measurement is triggered when the SCCP module sends a CC message.
Formula None.
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1.2.14 Sent DT1 Messages Counter L7013: Sent DT1 Messages.
Meaning This counter measures the number of times the SCCP module sends a data form 1 (DT1) message.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. The measurement is triggered when the SCCP module sends a DT1 message.
Formula None.
1.2.15 Received DT1 Messages Counter L7014: Received DT1 Messages.
Meaning This counter meausres the number of times the SCCP module receives a DT1 message.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. The measurement is triggered when the SCCP module receives a DT1 message.
Formula None.
1.2.16 Sent RLSD Messages Counter L7015: Sent RLSD Messages.
Meaning This counter measures the number of times the SCCP module sends a released (RLSD) message.
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Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. The measurement is triggered when the SCCP module sends a RLSD message.
Formula None.
1.2.17 Received RLSD Messages Counter L7016: Received RLSD Messages.
Meaning This counter measures the number of times the SCCP module receives an RLSD message.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. The measurement is triggered when the SCCP module receives a RLSD message.
Formula None.
1.2.18 Sent RLC Messages Counter L7017: Sent RLC Messages.
Meaning This counter measures the number of times the SCCP module sends a release complete (RLC) message.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. The measurement is triggered when the SCCP module sends an RLC message.
Formula None.
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1.2.19 Received RLC Messages Counter L7018: Received RLC Messages.
Meaning This counter measures the number of times the SCCP module receives an RLC message.
Trigger Point The trigger point is on the BSC side, as shown in Figure 1-1. The measurement is triggered when the SCCP module receives a RLC message.
Formula None.
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2
MTP3 Measurement
About This Chapter The following table lists the sections of this chapter. Section
Describes
2.1 Overview of MTP3 Measurement
Introduces the functions and measurement units of MTP3 Measurement.
2.2 MTP3 Link Measurement
Describes the functions and counters of MTP3 Link Measurement.
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2.1 Overview of MTP3 Measurement Message Transfer Part Level 3 (MTP3) Measurement is used to measure the MTP3 link, link set, and Destination Signaling Points (DSPs). Table 2-1 lists the measurement units of MTP3 Measurement. Table 2-1 MTP3 Measurement Units Measurement Unit
Section
MTP3 Link Measurement
2.2
2.2 MTP3 Link Measurement 2.2.1 Overview MTP3 Link Measurement is used to measure the MTP3 link in normal, faulty, congestion, and changing status. The measurement includes the number of messages sent and received on the link, the duration of various states, and the number of status changes. Table 2-2 lists the counters of MTP3 Link Measurement. Table 2-2 Counters of MTP3 Link Measurement
2-2
Counter
Section
TL6001: In-Service Duration of MTP3 Link
2.2.2
L6002: Out-of-Service Duration of MTP3 Link
2.2.3
L6003: Duration of MTP3 Link Fault
2.2.4
L6004: Duration of MTP3 Link Local Inhibition
2.2.5
L6005: Duration of MTP3 Link Remote Inhibition
2.2.6
L6006: Duration of MTP3 Link Remote Processor Fault
2.2.7
L6007: Duration of MTP3 Link Congestion
2.2.8
L6008: Failures of MTP3 Link for All Reasons
2.2.9
L6009: MTP3 Link Local Inhibitions
2.2.10
L6010: MTP3 Link Remote Inhibitions
2.2.11
L6011: MTP3 Link Remote Processor Failures
2.2.12
L6012: MTP3 Link Local Switchovers
2.2.13
L6013: MSUs Sent on MTP3 Link
2.2.14
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Counter
Section
L6014: MSUs Received on MTP3 Link
2.2.15
L6015: MTP3 Link Congestions
2.2.16
L6016: Discarded MSUs during Link Congestion
2.2.17
L6017: Transfer Inhibition Messages Received on MTP3 Link
2.2.18
L6018: Octets in SIFs or SIOs Sent on MTP3 Link
2.2.19
L6019: Octets in SIFs and SIOs Received on MTP3 Link
2.2.20
L6020: 64 kbit/s Timeslots Seized by Signaling Link
2.2.21
RL6021: Ratio of Transmit Bandwidth to Total Bandwidth
2.2.22
RL6022: Ratio of Receive Bandwidth to Total Bandwidth
2.2.23
L6023: Bytes of MTP2 Message Head in MSU Messages on MTP3 Link
2.2.24
2.2.2 In-Service Duration of MTP3 Link Counter L6001: In-Service Duration of MTP3 Link.
Meaning This counter measures the duration of the MTP3 link in service.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. Figure 2-1 MTP3 Measurement
A interface BSC
MSC
This counter increases by 1 every second when the MTP3 link is in service.
Formula In-Service Duration of MTP3 Link= {GP}*{60}) – [Out-of-Service Duration of MTP3 Link]
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2.2.3 Out-of-Service Duration of MTP3 Link Counter L6002: Out-of-Service Duration of MTP3 Link.
Meaning This counter measures the Out-of-Service Duration of MTP3 Link.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 every second when the MTP3 link is out of service.
Formula None.
2.2.4 Duration of MTP3 Link Fault Counter L6003: Duration of MTP3 Link Fault.
Meaning This counter measures the duration of MTP3 link fault.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 every second when the MTP3 link is faulty.
Formula None.
2.2.5 Duration of MTP3 Link Local Inhibition Counter L6004: Duration of MTP3 Link Local Inhibit.
Meaning This counter measures the duration of the MTP3 link local inhibition.
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Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 every second when the MTP3 link is at the local end inhibition.
Formula None.
2.2.6 Duration of MTP3 Link Remote Inhibition Counter L6005: Duration of MTP3 Link Remote Inhibit.
Meaning This counter measures the duration of MTP3 link remote inhibition.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 every second when the MTP3 link is in remote inhibition.
Formula None.
2.2.7 Duration of MTP3 Link Remote Processor Fault Counter L6006: Duration of MTP3 Link Remote Processor Fault.
Meaning This counter measures the duration of MTP3 link remote processor fault.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 every second when the MTP3 link remote processor is faulty.
Formula None.
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2.2.8 Duration of MTP3 Link Congestion Counter L6007: Duration of MTP3 Link Congestion.
Meaning This counter measures the duration of MTP3 link congestion.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 every second when the MTP3 link is congested.
Formula None.
2.2.9 Failures of MTP3 Link for All Reasons Counter L6008: Failures of MTP3 Link for All Reasons.
Meaning This counter measures the number of MTP3 link failures. The MTP2 reports link disruption, and then the MTP3 detects the number of link failures caused by signaling link disruption or link deactivation by the user.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter is measured when: z
The MTP2 reports link disruption.
z
The signaling link is disrupted.
z
Link deactivation by the user succeeds.
Formula None.
2.2.10 MTP3 Link Local Inhibitions Counter L6009: MTP3 Link Local Inhibitions.
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Meaning This counter measures the number of MTP3 link local inhibitions. The BSC inhibits a link on the LMT. If the inhibition does not lead to service interruption between the BSC and the MSC, the local inhibition is considered to succeed.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 when the MTP3 link is inhibited at the local end.
Formula None.
2.2.11 MTP3 Link Remote Inhibitions Counter L6010: MTP3 Link Remote Inhibitions.
Meaning This counter measures the number of MTP3 link remote inhibitions. The BSC receives a request from the MSC for inhibiting a link. If the inhibition does not lead to service interruption between the BSC and the MSC, the remote inhibition is considered to succeed.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 when the MTP3 link is inhibited at the remote end.
Formula None.
2.2.12 MTP3 Link Remote Processor Failures Counter L6011: MTP3 Link Remote Processor Failures.
Meaning This counter measures the number of failures of the MTP3 link remote processor. The MTP3 link does not bear services after it receives a message indicating MSC processor failure or detects an MSC processor failure. The MTP3 link recovers after it receives the recover indication from the MTP2.
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Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 when the MTP3 link remote processor is faulty.
Formula None.
2.2.13 MTP3 Link Local Switchovers Counter L6012: MTP3 Link Local Switchovers.
Meaning This counter measures the number of MTP3 link local switchovers. If a signaling link becomes unavailable, the traffic on this link is transferred to other links. This procedure is called a changeover.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 when the MTP3 link changeover occurs at the local end.
Formula None.
2.2.14 MSUs Sent on MTP3 Link Counter L6013: MSUs Sent on MTP3 Link.
Meaning This counter measures the number of Message Signal Units (MSUs) sent on the MTP3 link.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 when the MTP3 link sends an MSU.
Formula None.
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2.2.15 MSUs Received on MTP3 Link Counter L6014: MSUs Received on MTP3 Link.
Meaning This counter measures the number of MSUs received by the MTP3 link.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 when the MTP3 link receives an MSU.
Formula None.
2.2.16 MTP3 Link Congestions Counter L6015: MTP3 Link Congestions.
Meaning This counter measures the number of MTP3 link congestions.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 every time the MTP3 link is congested.
Formula None.
2.2.17 Discarded MSUs During Link Congestion Counter L6016: Discarded MSUs During Link Congestion
Meaning This counter measures the number of MSUs that the MTP3 discards during signaling link congestion.
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Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 when the MTP3 discards an MSU during signaling link congestion.
Formula None.
2.2.18 Transfer Inhibition Messages Received on MTP3 Link Counter L6017: Transfer Inhibition Messages Received on MTP3 Link.
Meaning This counter measures the number of transfer inhibition messages that the MTP3 receives. If the MSC cannot reach a DSP, it sends the transfer inhibition message to the MTP3.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter increases by 1 when the MTP3 receives a transfer inhibition message from the remote end.
Formula None.
2.2.19 Octets in SIFs or SIOs Sent on MTP3 Link Counter L6018: Octets in SIFs or SIOs Sent on MTP3 Link.
Meaning This counter measures the number of octets in the Signaling Information Fields (SIFs) and Service Information Octets (SIOs) sent on the MTP3 link.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter is measured when the MTP3 link sends SIFs and SIOs that contain octets.
Formula None.
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2.2.20 Octets in SIFs and SIOs Received by MTP3 Link Counter L6019: Octets in SIF and SIO Received by MTP3 Link.
Meaning This counter measures the number of octets in SIFs and SIOs received by the MTP3 link.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter is measured when the MTP3 link receives SIFs and SIOs that contain octets.
Formula None.
2.2.21 64 kbit/s Timeslots Occupied by a Signaling Link Counter L6020: 64 kbit/s Timeslots Occupied by a Signaling Link.
Meaning This counter measures the number of 64 kbit/s timeslots occupied by a signaling link.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter is measured when a signaling link is set up.
You can skip this counter.
Formula None.
2.2.22 Ratio of Transmit Bandwidth to Total Bandwidth Counter RL6021: Ratio of Transmit Bandwidth to Total Bandwidth.
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Meaning This counter measures the ratio of the transmit bandwidth to the total bandwidth of the signaling link in a GP.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter is measured when the measurement result is reported in a GP.
Formula Ratio of Transmit Bandwidth to Total Bandwidth= (MSUs Sent on MTP3 Link * 6 + Octets in SIFs and SIOs Sent by MTP3) * 100/(8192 % 64 kbit/s Timeslots Seized by Signaling Link * GP * 60)
2.2.23 Ratio of Receive Bandwidth to Total Bandwidth Counter RL6022: Ratio of Receive Bandwidth to Total Bandwidth.
Meaning This counter measures the ratio of the receive bandwidth to the total bandwidth of the signaling link in a GP.
Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter is measured when the measurement result is reported in a GP.
Formula Ratio of Receive Bandwidth to Total Bandwidth= (MSUs Received by MTP3 Link * 6 + Octets in SIFs and SIOs Received by MTP3) * 100/(8192 * 64 kbit/s Timeslots Seized by Signaling Link * GP * 60)
2.2.24 Bytes of MTP2 Message Head in MSU Messages on MTP3 Link Counter L6023: Bytes of MTP2 Message Head in MSU Messages on MTP3 Link
Meaning This counter measures the bytes of the MTP2 message head in the MSU messages on the MTP3 link.
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Trigger Point The trigger point is on the BSC side, as shown in Figure 2-1. This counter is measured when an MTP3 link object is created.
Formula None.
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3
LAPD Measurement
About This Chapter The following table lists the sections of this chapter. Section
Describes
3.1 Overview of LAPD Measurement
Introduces the function and measurement unit of LAPD Link Measurement.
3.2 LAPD Link Measurement
Describes the function and counters of LAPD Link Measurement.
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3.1 Overview of LAPD Measurement LAPD Measurement is used to measure the basic signaling process and the traffic volume on the Abis and Pb interfaces. Table 11-1 lists the measurement unit of LAPD Measurement. Table 3-1 Measurement unit of LAPD Measurement Measurement Unit
Section
LAPD Link Measurement
3.2
3.2 LAPD Link Measurement 3.2.1 Overview The LAPD link is the signaling transfer channel between the BSC and the BTS, and between the BSC and the PCU. LAPD Link Measurement is used to measure the number of Q921 protocol frames related to the LAPD link on the BSC side. Table 3-2 lists the counters of LAPD Link Measurement. Table 3-2 Counters of LAPD Link Measurement
3-2
Counter
Section
L5001: SABME Frames Sent on LAPD Link
3.2.2
L5002: SABME Frames Received on LAPD Link
3.2.3
L5003: REJ Frames Sent on LAPD Link
3.2.4
L5004: REJ Frames Received on LAPD Link
3.2.5
L5005: RNR Frames Sent on LAPD Link
3.2.6
L5006: RNR Frames Received on LAPD Link
3.2.7
L5007: I Frames Resent on LAPD Link
3.2.8
L5008: Incorrect I Frames Received on LAPD Link
3.2.9
L5009: I Frames Received on LAPD Link from Application Layer
3.2.10
L5010: I Frames Sent on LAPD Link
3.2.11
L5011: I Frames Received on LAPD Link
3.2.12
L5012: I Frames Discarded on LAPD Link
3.2.13
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Counter
Section
L5013: UA Frames Sent on LAPD Link
3.2.14
L5014: UA Frames Received on LAPD Link
3.2.15
L5015: UI Frames Received on LAPD Link
3.2.16
3.2.2 SABME Frames Sent on LAPD Link Counter L5001: SABME Frames Sent on LAPD Link.
Meaning This counter measures the number of SABME frames sent on LAPD links.
Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1 Figure 3-1 LAPD link measurement
Abis interface BTS
BSC Pb interface
PCU
This counter is measured when the BSC sends SABME frames to the BTS or the PCU during initial link setup or link disruption.
Formula None.
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3.2.3 SABME Frames Received on LAPD Link Counter L5002: SABME Frames Received on LAPD Link.
Meaning This counter measures the number of SABME frames received on LAPD links.
Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the BSC receives SABME frames from the BTS or the PCU after LAPD link setup.
Formula None.
3.2.4 REJ Frames Sent on LAPD Link Counter L5003: REJ Frames Sent on LAPD Link.
Meaning This counter measures the number of REJ frames sent on LAPD links.
Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the BSC sends REJ frames to the BTS or the PCU after the LAPD link receives incorrect frames.
Formula None.
3.2.5 REJ Frames Received on LAPD Link Counter L5004: REJ Frames Received on LAPD Link
Meaning This counter measures the number of REJ frames received on LAPD links.
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Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the BSC receives REJ frames from the BTS or the PCU.
Formula None.
3.2.6 RNR Frames Sent on LAPD Link Counter L5005: RNR Frames Sent on LAPD Link.
Meaning This counter measures the number of RNR frames sent on LAPD links.
Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the BSC sends RNR frames to the BTS or the PCU after it receives RR frames when it is busy.
Formula None.
3.2.7 RNR Frames Received on LAPD Link Counter L5006: RNR Frames Received on LAPD Link.
Meaning This counter measures the number of RNR frames received on LAPD links.
Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the BSC receives RNR frames from the BTS or the PCU.
Formula None.
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3.2.8 I Frames Resent on LAPD Link Counter L5007: I Frames Resent on LAPD Link.
Meaning This counter measures the number of I frames resent on LAPD links.
Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the BSC resends I frames to the BTS or the PCU.
Formula None.
3.2.9 Incorrect I Frames Received on LAPD Link Counter L5008: Incorrect I Frames Received on LAPD Link.
Meaning This counter measures the number of incorrect frames received on LAPD links.
Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the BSC receives incorrect I frames from the BTS or the PCU.
Formula None.
3.2.10 I Frames Received on LAPD Link from Application Layer Counter L5009: I Frames Received by LAPD Link from Application Layer
Meaning This counter measures the number of I frames that the LAPD link receives from the application layer.
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Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the LAPD link receives I frames from the application layer.
Formula None.
3.2.11 I Frames Sent on LAPD Link Counter L5010: I Frames Sent on LAPD Link.
Meaning This counter measures the number of I frames sent on the LAPD link.
Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the LAPD link sends I frames to the BTS or the PCU.
Formula None.
3.2.12 I Frames Received by LAPD Link Counter L5011: I Frames Received by LAPD Link.
Meaning This counter measures the number of I frames received by the LAPD link.
Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the LAPD link receives I frames from the BTS or the PCU.
Formula None.
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3.2.13 I Frames Discarded by LAPD Link Counter L5012: I Frames Discarded by LAPD Link.
Meaning This counter measures the number of I frames discarded by the LAPD link.
Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the LAPD link discards the I frames sent from the application layer if the I frame queue overflows.
Formula None.
3.2.14 UA Frames Sent on LAPD Link Counter L5013: UA Frames Sent on LAPD Link.
Meaning This counter measures the number of UA frames sent on the LAPD link.
Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the LAPD link sends UA frames to the BTS or the PCU after it receives SABME frames.
Formula None.
3.2.15 UA Frames Received by LAPD Link Counter L5014: UA Frames Received by LAPD Link.
Meaning This counter measures the number of UA frames received by the LAPD link.
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Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the LAPD link receives UA frames from the BTS or the PCU.
Formula None.
3.2.16 UI Frames Received by LAPD Link Counter L5015: UI Frames Received by LAPD Link.
Meaning This counter measures the number of UI frames received by the LAPD link.
Trigger Point The trigger point is on the BSC side, as shown in Figure 3-1. This counter is measured when the LAPD link receives UI frames sent from the BTS or the PCU.
Formula None.
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4 System Load Measurement
System Load Measurement
About This Chapter The following table lists the sections of this chapter. Section
Describes
4.1 Overview of System Load Measurement
Introduces System Load Measurement and its measurement unit.
4.2 CPU Usage Measurement
Describes CPU Usage Measurement and its counters.
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4.1 Overview of System Load Measurement System Load Measurement refers to the measurement of the system load of the BSC. The system load refers to the CPU usage of the BSC boards and the GBAM. The CPU usage shows the load situation of the system, but a 100% CPU usage does not mean that the CPU has reached its limitation and cannot process extra services. The BSC has a certain buffer capability, which can save extra service requests. As long as there is still a buffer area in the host, the BSC continues to process new services. Therefore, high CPU usage does not necessarily mean that the BSC is faulty, even if the CPU usage reaches 80% occasionally. The buffer area of the BSC is limited. If the CPU usage is high for a long time, a transient exhaustion of the buffer area may occur because there are sharp bursts of service requests. The BSC will abandon new service requests. Table 11-1 lists the measurement unit of System Load Measurement. Table 4-1 Measurement unit of System Load Measurement Measurement Unit
Section
CPU Usage Measurement
4.2
4.2 CPU Usage Measurement 4.2.1 Overview CPU Usage Measurement is used to measure the CPU usage of BSC boards and the GBAM. Table 4-2 lists the counters of CPU Usage Measurement. Table 4-2 Counters of CPU Usage Measurement
4-2
Counter
Section
AR9702: Mean CPU Usage
4.2.2
R9703: Maximum CPU Usage
4.2.3
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4.2.2 Mean CPU Usage Counter AR9702: Mean CPU Usage
Meaning This counter measures the mean ratio of the busy time of the CPU in a Granularity Period (GP). The counter shows the load situation of the BSC.
Trigger Point None.
Formula Mean CPU Usage = [Accumulated CPU Usage] / [Number of CPU Usage Measurements] After a board or the GBAM runs for 30 seconds, the BSC measures the CPU usage every second and obtains Accumulated CPU Usage in a GP. Number of CPU Usage Measurements refers to the number of times the BSC measure the CPU usage.
4.2.3 Maximum CPU Usage Counter R9703: Maximum CPU Usage
Meaning This counter measures the maximum CPU usage in a GP.
Trigger Point The BSC measures the CPU usage every second in a GP and compares it with the current value. The measurement is triggered when the BSC detects the maximum CPU usage in a GP.
Formula None.
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5
BTSM Management
About This Chapter The following table lists the sections of this chapter. Section
Describes
5.1 Overview of BTSM Measurement
Introduces the measurement units of BTSM Measurement.
5.2 BTS State Measurement per BTS
Describes the function and counters of BTS State Measurement per BTS.
5.3 BTS Configuration Measurement per BM Subrack
Describes the function and counters of BTS Configuration Measurement per BM Subrack.
5.4 Cell State Measurement per Cell
Describes the function and counters of Cell State Measurement per Cell.
5.5 Cell Configuration Measurement per BM Subrack
Describes the function and counters of Cell Configuration Measurement per BM Subrack.
5.6 TRX State Measurement per TRX
Describes the function and counters of TRX State Measurement per TRX.
5.7 TRX Configuration Measurement per BM Subrack
Describes the function and counters of TRX Configuration Measurement per BM Subrack.
5.8 CRC Error Measurement per BTS
Describes the function and counters of CRC Error Measurement per BTS.
5.9 CRC Serious Error Measurement per BTS
Describes the function and counters of CRC Serious Error Measurement per BTS.
5.10 OML Measurement per BTS
Describes the function and counters of OML Measurement per BTS.
5.11 RSL Measurement per TRX
Describes the function and counters of RSL Measurement per TRX.
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5.1 Overview of BTSM Measurement Base Transceiver Station Management (BTSM) measurement is used to measure the state of the BTS, cell, and TRX, and link communication state between the BSC and the BTS. Table 5-1 lists the measurement units of BTSM management. Table 5-1 Measurement units of BTSM Measurement Measurement Unit
Section
BTS State Measurement per BTS
5.2
BTS Configuration Measurement per BM Subrack
5.3
Cell State Measurement per Cell
5.4
Cell Configuration Measurement per BM Subrack
5.5
TRX State Measurement per TRX
5.6
TRX Configuration Measurement per BM Subrack
5.7
CRC Error Measurement per BTS
5.8
CRC Serious Error Measurement per BTS
5.9
OML Measurement per BTS
5.10
RSL Measurement per TRX
5.11
BM: Basic Module BM subrack = GSM Main Processing Subrack (GMPS)/GSM Extended Processing Subrack (GEPS)
5.2 BTS State Measurement per BTS 5.2.1 Overview BTS State Measurement per BTS is used to measure the BTS reset state, services state, and OML communication state. Table 5-2 lists the counters of BTS State Measurement per BTS. Table 5-2 Counters of BTS State Measurement per BTS
5-2
Counter
Section
R2701: Successful BTS Initializations
5.2.2
R2702: Failed BTS Initializations
5.2.3
L2130: BTS OML Disruption Duration
5.2.4
R273: BTS Out-of-Service Duration
5.2.5
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Counter
Section
TR273: BTS Availability
5.2.6
CR273: BTS In-Service Duration
5.2.7
5.2.2 Successful BTS Initializations Counter R2701: Successful BTS Initializations.
Meaning This counter measures the number of successful BTS initializations.
Trigger Point This counter is measured when BTS initialization succeeds.
Formula None.
5.2.3 Failed BTS Initializations Counter R2702: Failed BTS Initializations.
Meaning This counter measures the number of failed BTS initializations.
Trigger Point This counter is measured when: z
BTS initialization fails.
z
BTS initialization fails for the second time.
z
Flow control is generated during BTS initialization.
Formula None.
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5.2.4 BTS OML Disruption Duration Counter L2130: BTS OML Disruption Duration.
Meaning When the OML between the BTS and the BSC is faulty, the OML of this BTS is considered disrupted, and the duration of the disruption is measured.
Trigger Point This counter is measured when the BTS OML is disrupted.
Formula None.
5.2.5 BTS Out-of-Service Duration Counter R273: Duration of Site Out of Service.
Meaning When the main Broadcast Control Channels (BCCHs) of all the cells under the BTS are faulty, the BTS is considered to be out of service and the duration is measured.
Trigger Point This counter is measured when the BSC detects faults in the main BCCHs of all the cells under one BTS.
In some occasions, this counter may have an error of five seconds (the sampling period).
Formula None.
5.2.6 BTS Availability Counter TR273: BTS Availability.
Meaning This counter measures the BTS availability in a Granularity Period (GP).
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Trigger Point None.
Formula [BTS Availability] = [BTS In-Service Duration]*{100}/({GP}*{60})
GP unit: minute
5.2.7 BTS In-Service Duration Counter CR273: BTS In-Service Duration.
Meaning This counter measures the duration of the BTS in service in a GP.
Trigger Point None.
Formula [BTS In-Service Duration] = {GP}*{60} – [BTS Out-of-Service Duration]
GP unit: minute
5.3 BTS Configuration Measurement per BM Subrack 5.3.1 Overview BTS Configuration Measurement per BM Subrack is used to measure the activated and available BTSs. Table 5-3 lists the counters of BTS Configuration Measurement per BM Subrack. Table 5-3 Counters of BTS Configuration Measurement per BM Subrack Counter
Section
R260: Activated BTSs
5.3.2
R261: Available BTSs
5.3.3
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5.3.2 Activated BTSs Counter R260: Activated BTSs.
Meaning This counter measures the number of activated BTSs in data configuration.
Trigger Point None.
Formula None.
5.3.3 Available BTSs Counter R261: Available BTSs.
Meaning This counter measures the number of BTSs that are in the ENABLE state.
Trigger Point The BSC queries the operation state of the BTS regularly and measures the number of activated BTSs.
Formula None.
5.4 Cell State Measurement per Cell 5.4.1 Overview Cell State Measurement per Cell is used to measure the cell reset state, cell service state, and mutual aid state.
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Table 5-4 lists the counters of Cell State Measurement per Cell. Table 5-4 Counters of Cell State Measurement per Cell Counter
Section
R3701: Successful Cell Initializations
5.4.2
R3702: Failed Cell Initializations
5.4.3
R3710: Cell BCCH Mutual Aid
5.4.4
R3711: Recoveries after Cell BCCH Mutual Aid
5.4.5
R3720: Cell Baseband Hopping Mutual Aid
5.4.6
R3721: Recoveries after Cell Baseband Hopping Mutual Aid
5.4.7
R373: Cell Out-of-Service Duration
5.4.8
TR373: Cell Availability Duration
5.4.9
CR373: Cell In-Service Duration
5.4.10
5.4.2 Successful Cell Initializations Counter R3701: Successful Cell Initializations.
Meaning This counter measures the number of successful cell initializations.
Trigger Point This counter is measured when cell initialization succeeds.
Formula None.
5.4.3 Failed Cell Initializations Counter R3702: Failed Cell Initializations.
Meaning This counter measures the number of failed cell initializations.
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Trigger Point This counter is measured when: z
Cell initialization fails.
z
Cell initialization fails for the second time.
z
Flow control is generated during cell initialization.
Formula None.
5.4.4 Cell BCCH Mutual Aid Counter R3710: Cell BCCH Mutual Aid.
Meaning If the main BCCH of a cell is faulty, to ensure the continuity of services, the BSC allocates a TCH of another TRX as a new BCCH. This is called BCCH mutual aid. This counter measures the number of BCCH mutual aid.
Trigger Point If the main BCCH of a cell is faulty, the BSC allocates a TCH of another TRX as a new BCCH and accumulates the BCCH mutual aid.
Formula None.
5.4.5 Recoveries after Cell BCCH Mutual Aid Counter R3711: Recoveries after Cell BCCH Mutual Aid.
Meaning When the BSC detects that the original faulty TRX recovers after the mutual aid, the BSC adjusts the BCCH back to the original TRX.
Trigger Point When the BSC detects that the original faulty TRX recovers after the mutual aid, the BSC adjusts the BCCH back to the original TRX and accumulates the recoveries.
Formula None.
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5.4.6 Cell Baseband Hopping Mutual Aid Counter R3720: Cell Baseband Hopping Mutual Aid.
Meaning If the TRXs that are involved in baseband hopping are faulty, the baseband hopping function of this cell is disabled.
Trigger Point If the TRXs that are involved in baseband hopping are faulty, the BSC disables the baseband hopping function of this cell and accumulates the baseband hopping mutual aid.
Formula None.
5.4.7 Recoveries After Cell Baseband Hopping Mutual Aid Counter R3721: Recoveries After Cell Baseband Hopping Mutual Aid.
Meaning If the BSC detects that all the faulty TRXs that are involved in baseband hopping are recovered, the baseband hopping function is resumed.
Trigger Point After cell baseband hopping mutual aid, the BSC detects the original faulty TRXs at regular intervals. If these faulty TRXs are recovered, the baseband hopping function is resumed, and the recoveries after cell baseband hopping mutual aid are accumulated.
Formula None.
5.4.8 Cell Out-of-Service Duration Counter R373: Cell Out-of-Service Duration.
Meaning If the main BCCH of a cell is faulty, this cell is considered to be out of service. This counter measures the Cell Out-of-Service Duration.
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Trigger Point This counter is measured when the BSC detects that the main BCCH of a cell is faulty.
In some occasions, this counter may have an error of five seconds (the sampling period).
Formula None.
5.4.9 Cell Availability Counter TR373: Cell Availability
Meaning This counter is used to measure the cell availability in a GP.
Trigger Point None.
Formula [Cell Availability] = [Cell In-Service Duration]*{100}/({GP}*{60})
GP unit: minute
5.4.10 Cell In-Service Duration Counter CR373: Cell In-Service Duration.
Meaning This counter measures the duration of a cell in service in a GP.
Trigger Point None.
Formula [Cell In-Service Duration] = {GP}*{60} – [Cell Out-of-Service Duration]
GP unit: minute
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5.5 Cell Configuration Measurement per BM Subrack 5.5.1 Overview Configuration Measurement is used to measure the number of activated cells and available cells. Table 5-5 lists the counters of Cell Configuration Measurement per BM Subrack. Table 5-5 Counters of Cell Configuration Measurement per BM Subrack Counter
Section
R360: Activated cells
5.5.2
R361: Available cells
5.5.3
5.5.2 Activated Cells Counter R360: Activated Cells.
Meaning This counter measures the number of activated cells in data configuration.
Trigger Point None.
Formula None.
5.5.3 Available Cells Counter R361: Available Cells.
Meaning This counter measures the number of cells whose operation state is ENABLE.
Trigger Point The BSC queries the operation state of cells at regular intervals and measures the number of activated cells.
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Formula None.
5.6 TRX State Measurement per TRX 5.6.1 Overview TRX State Measurement per TRX is used to measure the TRX Out-of-Service Duration. Table 5-6 lists the counter of TRX State Measurement per TRX. Table 5-6 Counters of TRX State Measurement per TRX Counter
Section
R473: TRX Out-of-Service Duration
5.6.2
5.6.2 TRX Out-of-Service Duration Counter R473: TRX Out-of-Service Duration.
Meaning This counter measures the out-of-service duration of the TRX. The TRX is considered out of service when all the channels on the TRX cannot provide services.
Trigger Point This counter is measured when the BSC detects that none of the TCHs are available.
In some occasions, this counter may have an error of five seconds (the sampling period).
Formula None.
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5.7 TRX Configuration Measurement per BM Subrack 5.7.1 Overview TRX Configuration Measurement per BM Subrack is used to measure the number of activated and available TRXs, and the TRX availability. Table 5-7 lists the counters of TRX Configuration Measurement per BM Subrack. Table 5-7 Counters of TRX Configuration Measurement per BM Subrack Counter
Section
R460: Activated TRXs
5.7.2
R461: Available TRXs
5.7.3
RR461: TRX Availability
5.7.4
5.7.2 Activated TRXs Counter R460: Activated TRXs.
Meaning This counter measures the number of activated TRXs in data configuration.
Trigger Point None.
Formula None.
5.7.3 Available TRXs Counter R461: Available TRXs.
Meaning This counter measures the number of TRXs whose operation state is ENABLE.
Trigger Point This counter is measured when the BSC queries the operation state of TRXs at regular intervals and measures the number of available TRXs.
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Formula None.
5.7.4 TRX Availability Counter RR461: TRX Availability
Meaning This counter measures the ratio of the number of available TRXs to the number of the configured TRXs.
Trigger Point None.
Formula [TRX Availability] = [Available TRXs]*{100}/[Configured TRXs]
5.8 CRC Error Measurement per BTS 5.8.1 Overview CRC Error Measurement per BTS is used to measure the duration of CRC error on E1 ports on the Abis interface. This measurement unit reflects the communication status of E1 cables between the BSC and the BTS. Table 5-8 lists the counter of CRC Error Measurement per BTS. Table 5-8 Counters of CRC Error Measurement per BTS
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Counter
Section
Duration of CRC Error on Ports 0 Through 23
5.8.2
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5.8.2 Duration of CRC Error on Ports 0 Through 23 Counter Table 5-9 lists the counters of Duration of CRC Error on Ports 0 Through 23. Table 5-9 Counters of Duration of CRC Error on Ports 0 Through 23 Number
Counter
1
L2100A: Duration of CRC Error on Port 0
2
L2101A: Duration of CRC Error on Port 1
3
L2102A: Duration of CRC Error on Port 2
4
L2103A: Duration of CRC Error on Port 3
5
L2104A: Duration of CRC Error on Port 4
6
L2105A: Duration of CRC Error on Port 5
7
L2106A: Duration of CRC Error on Port 6
8
L2107A: Duration of CRC Error on Port 7
9
L2108A: Duration of CRC Error on Port 8
10
L2109A: Duration of CRC Error on Port 9
11
L2110A: Duration of CRC Error on Port 10
12
L2111A: Duration of CRC Error on Port 11
13
L2112A: Duration of CRC Error on Port 12
14
L2113A: Duration of CRC Error on Port 13
15
L2114A: Duration of CRC Error on Port 14
16
L2115A: Duration of CRC Error on Port 15
17
L2116A: Duration of CRC Error on Port 16
18
L2117A: Duration of CRC Error on Port 17
19
L2118A: Duration of CRC Error on Port 18
20
L2119A: Duration of CRC Error on Port 19
21
L2120A: Duration of CRC Error on Port 20
22
L2121A: Duration of CRC Error on Port 21
23
L2122A: Duration of CRC Error on Port 22
24
L2123A: Duration of CRC Error on Port 23
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Meaning The BSC and the BTS communicate through E1 cables. The BTS detects whether there are CRC errors on E1 ports every second. If an error occurs, the number on the counter increases by one, and the total is reported to the BSC every five minutes. Then the BSC accumulates the reported numbers to get the value in a GP. This counter measures the duration of CRC errors on E1 ports. The greater the value is, the worse the transmission quality will be.
Trigger Point The BTS reports the message containing CRC authentication results to the BSC every five minutes. Then the BSC measures this counter according to the port number in the message.
Formula None.
5.9 CRC Serious Error Measurement per BTS 5.9.1 Overview CRC Serious Error Measurement per BTS is used to measure the duration of CRC serious error on E1 ports on the Abis interface. This measurement unit reflects the communication status of E1 cables between the BSC and the BTS. Table 5-10 lists the counter of CRC Serious Error Measurement per BTS. Table 5-10 Counter of CRC Serious Error Measurement per BTS Counter
Section
Duration of Serious CRC Error on Ports 0 Through 23
5.9.2
5.9.2 Duration of Serious CRC Error on Ports 0 Through 23 Counter Table 5-11 lists the counters of Duration of Serious CRC Error on Ports 0 Through 23. Table 5-11 Counters of Duration of Serious CRC Error on Ports 0 Through 23
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Number
Counter
1
L2100B: Duration of Serious CRC Error on Port 0
2
L2101B: Duration of Serious CRC Error on Port 1
3
L2102B: Duration of Serious CRC Error on Port 2
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L2103B: Duration of Serious CRC Error on Port 3
5
L2104B: Duration of Serious CRC Error on Port 4
6
L2105B: Duration of Serious CRC Error on Port 5
7
L2106B: Duration of Serious CRC Error on Port 6
8
L2107B: Duration of Serious CRC Error on Port 7
9
L2108B: Duration of Serious CRC Error on Port 8
10
L2109B: Duration of Serious CRC Error on Port 9
11
L2110B: Duration of Serious CRC Error on Port 10
12
L2111B: Duration of Serious CRC Error on Port 11
13
L2112B: Duration of Serious CRC Error on Port 12
14
L2113B: Duration of Serious CRC Error on Port 13
15
L2114B: Duration of Serious CRC Error on Port 14
16
L2115B: Duration of Serious CRC Error on Port 15
17
L2116B: Duration of Serious CRC Error on Port 16
18
L2117B: Duration of Serious CRC Error on Port 17
19
L2118B: Duration of Serious CRC Error on Port 18
20
L2119B: Duration of Serious CRC Error on Port 19
21
L2120B: Duration of Serious CRC Error on Port 20
22
L2121B: Duration of Serious CRC Error on Port 21
23
L2122B: Duration of Serious CRC Error on Port 22
24
L2123B: Duration of Serious CRC Error on Port 23
5 BTSM Management
Meaning The BSC and the BTS communicate through E1 cables. The BTS detects whether there are CRC serious errors on E1 ports every second. If a serious error occurs, the number on the counter increases by one, and the total is reported to the BSC every five minutes. Then the BSC accumulates the reported numbers to get the value in a GP. This counter measures the duration of CRC serious errors on E1 ports. The greater the value is, the worse the transmission quality will be.
Trigger Point The BTS reports the message containing CRC authentication results to the BSC every five minutes. Then the BSC measures this counter according to the port number in the message.
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Formula None.
5.10 OML Measurement per BTS 5.10.1 Overview OML Measurement per BTS is used to measure the number of various frames sent between the BSC and the BTS. Table 5-12 lists the counters of OML Measurement per BTS. Table 5-12 Counters of OML Measurement per BTS
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Counter
Section
L2131: OML Setup Requests Sent by BTS
5.10.2
L2132: OML Setup Requests Received by BTS
5.10.3
L2133: BTS-Sent Rejects to the OML Setup Requests
5.10.4
L2134: BTS-Received Rejects to the OML Setup Requests
5.10.5
L2135: OML RNR Frames Sent by BTS
5.10.6
L2136: OML RNR Frames Received by BTS
5.10.7
L2137: OML I Frames Resent by BTS
5.10.8
L2138: OML NRERR Received by BTS
5.10.9
L2139: OML L3 Data Requests Received by BTS
5.10.10
L2140: OML I Frames Sent by BTS
5.10.11
L2141: OML I Frames Received by BTS
5.10.12
L2142: Queue Overflows of OML Messages Sent by BTS
5.10.13
L2143: Erroneously Received OML Long Frames by BTS Physical Layer
5.10.14
L2144: Erroneously Received OML Octet Errors Received by BTS Physical Layer
5.10.15
L2145: OML Discarded Series Received by BTS Physical Layer
5.10.16
L2146: OML CRC Errors Received by BTS
5.10.17
L2147: L1 and L2 Overflows of BTS OML
5.10.18
L2148: Total OML Frames Received by BTS Physical Layer
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5.10.2 OML Setup Requests Sent by BTS Counter L2131: OML Setup Requests Sent by BTS.
Meaning This counter measures the number of SABME frames that the BTS L2 sends on the OML. The SABME frame is sent to request for link setup. During the startup and normal operation of the BSC, the BTS does not initiate a link setup request or send SABME frames to the BSC. If the OML status is converted to multi-frame (Multi_I) setup, the BTS may send SABME frames to the BSC. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 sends an SAMBE frame on the OML.
Formula None.
5.10.3 OML Setup Requests Received by BTS Counter L2132: OML Setup Requests Received by BTS.
Meaning This counter measures the number of SABME frames that the BTS L2 receives on the OML. The SABME frame is sent to request for link setup. After the BSC starts up, the link status is converted to multi-frame (Multi_I) setup through the frame interaction between the L2 entities of the BSC and the BTS. During this procedure, the Abis interface board sends the SABME frame to the BTS L2. If the link is abnormal or the link between the BSC and the BTS is disrupted, the BSC sends the SABME frame to request for link setup. If the physical uplink is disrupted, the BTS does not receive frames from the BSC and this counter does not increase. If the physical downlink is disrupted, the measurement result cannot be sent to the BSC and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 receives an SAMBE frame on the OML.
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Formula None.
5.10.4 BTS-Sent Rejects to the OML Setup Requests Counter L2133: BTS-Sent Rejects to the OML Setup Requests.
Meaning This counter measures the number of REJ frames that the BTS L2 sends on the OML. The REJ frame is a monitoring frame, which means that the received I frame (information frame) is rejected. The REJ frame contains the serial number of the expected I Frame. I frames are numbered in sequence. The BTS L2 has records for received and sent I frames. Normally, the value of this counter should be 0. If the BTS receives an I frame with an unexpected number, it sends a REJ frame to the BSC, and this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 sends a REJ frame on the OML.
Formula None.
5.10.5 BTS-Received Rejects to the OML Setup Requests Counter L2134: BTS-Received Rejects to the OML Setup Requests.
Meaning This counter measures the number of REJ frames that the BTS L2 receives on the OML. The REJ frame is a monitoring frame, which means that the received I frame (information frame) is rejected. The REJ frame contains the serial number of the expected I frame. I frames are numbered in sequence. The BTS L2 has records for received and sent I frames. Normally, the value of this counter should be 0. If the BSC receives an I frame with an unexpected number, it sends a REJ frame to the BTS, and this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC and this counter does not increase.
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Trigger Point This counter is measured when the BTS L2 sends a REJ frame on the OML.
Formula None.
5.10.6 OML RNR Frames Sent by BTS Counter L2135: OML RNR Frames Sent by BTS
Meaning This counter measures the number of RNR frames that the BTS L2 sends on the OML. The RNR frame is a monitoring frame, which means that the local receiver is busy and is not ready to receive the next I frame. The RNR frame contains the serial number of the expected I frame. The peer end stops sending I frames on receiving the RNR frame. If the BTS receiver is busy, the BTS sends an RNR frame to the BSC. The BSC stops sending I frames on receiving the RNR frame. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 sends an RNR frame on the OML.
Formula None.
5.10.7 OML RNR Frames Received by BTS Counter L2136: OML RNR Frames Received by BTS
Meaning This counter measures the number of RNR frames that the BTS L2 receives on the OML. The RNR frame is a monitoring frame, which means that the local receiver is busy and is not ready to receive the next I frame. The RNR frame contains the serial number of the expected I frame. The peer end stops sending I frames on receiving RNR frames. If the BSC receiver is busy, the BSC sends an RNR frame to the BTS. The BTS stops sending I frames on receiving the RNR frame. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC and this counter does not increase.
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Trigger Point This counter is measured when the BTS L2 sends an RNR frame on the OML.
Formula None.
5.10.8 OML I Frames Resent by BTS Counter L2137: OML I Frames Resent by BTS.
Meaning This counter measures the number of I frames that the BTS L2 resends on the OML. If the BTS receives a REJ frame from the BSC, it means that an error occurs when the BSC receives I frames. Then the BTS resends this I frame and all the I frames with numbers bigger than this number. If the BTS receives an RNR frame from the BSC, it means that the L2 receiver of the BSC is busy and cannot receive I frames. Then the BTS resends this I frame and all the I frames with numbers bigger than this number after the L2 receiver of the BSC is free. This counter increases by 1 when the BTS resends an I frame. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 resends an I frame on the OML.
Formula None.
5.10.9 OML NRERR Received by BTS Counter L2138: OML NRERR Received by BTS.
Meaning This counter measures the number of frames that the BTS L2 OML receives whose numbers are different from those of the to-be-sent frames. The RR frames, RNR frames, REJ frames, and I frames sent from the BSC to the BTS contain the numbers of the to-be-sent I frames. The BTS records the number range of the to-be-sent I frames. If the received I frame number is not within the range, this number is considered incorrect, and this counter increases by 1.
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If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 receives OML frames whose numbers are different from those of the to-be-sent frames.
Formula None.
5.10.10 OML L3 Data Requests Received by BTS Counter L2139: OML L3 Data Requests Received by BTS
Meaning This counter measures the number of requests that are sent from OML L3 to L2 and contain the to-be-confirmed messages. The requests sent from L3 consist of the messages that need or need not be confirmed. The former are transferred in L2 I frames and the latter are transferred in L2 UI frames. All the L3 messages sent by the BTS except for the MR need be confirmed. If the BTS L2 receives one request containing the to-be-confirmed message from L3, this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 OML receives the request containing the to-beconfirmed message from L3.
Formula None.
5.10.11 OML I Frames Sent by BTS Counter L2140: OML I Frames Sent by BTS.
Meaning This counter measures the number of I frames sent by the BTS L2 on the OML. The requests sent from L3 consist of the messages that need or need not be confirmed. The former are transferred in L2 I frames and the latter transferred in L2 UI frames.
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All the L3 messages sent by the BTS except for the MR need be confirmed. When the BTS L2 sends an I frame on the OML, this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 sends an I frame on the OML.
Formula None.
5.10.12 OML I Frames Received by BTS Counter L2141: OML I Frames Received by BTS.
Meaning This counter measures the number of I frames the BTS L2 receives on the OML. The requests sent from L3 consist of the messages that need or need not be confirmed. The former are transferred in L2 I frames and the latter are transferred in L2 UI frames. All the L3 messages sent by the BSC need be confirmed. If the BTS L2 receives one I frame, this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 receives an I frame on the OML.
Formula None.
5.10.13 Queue Overflows of OML Messages Sent by BTS Counter L2142: Queue Overflows of OML Messages Sent by BTS.
Meaning The requests sent from L3 consist of the messages that need or need not be confirmed. The former are transferred in L2 I frames and the latter are transferred in L2 UI frames. When the BTS L2 sends the to-be-confirmed messages through I frames, it puts the I frames in a message queue and sends them in sequence.
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If too many messages are to be sent within a short period of time by L3, the message queue overflows, messages are lost, and this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the message queue of I frames sent by the BTS L2 on the OML overflows.
Formula None.
5.10.14 Erroneously Received OML Long Frames by BTS Physical Layer Counter L2143: Erroneously Received OML Long Frames by BTS Physical Layer.
Meaning The L3 messages are sent through L2 to L1. Then L1 sends the messages in the form of physical frames. If an error occurs when L1 receives a long frame, this frame is discarded, and this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L1 erroneously receives an OML long frame.
Formula None.
5.10.15 OML Byte Errors Received by BTS Physical Layer Counter L2144: OML Byte Errors Received by BTS Physical Layer
Meaning The L3 messages are sent through L2 to L1. Then L1 sends the messages in the form of physical frames. If the received frame contains incorrect bytes, this frame is discarded, and this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
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Trigger Point This counter is measured when the BTS L1 receives frames containing byte errors.
Formula None.
5.10.16 OML Discarded Series Received by BTS Physical Layer Counter L2145: OML Discarded Series Received by BTS Physical Layer
Meaning The L3 messages are sent through L2 to L1. Then L1 sends the messages in the form of physical frames. If the received frame contains the discarded series, the frame is discarded, and this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L1 receives frames containing discarded series.
Formula None.
5.10.17 OML CRC Errors Received by BTS Counter L2146: OML CRC Errors Received by BTS
Meaning The L3 messages are sent through L2 to L1. Then L1 sends the messages in the form of physical frames. If L1 receives a frame containing CRC errors, the frame is discarded, and the counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L1 receives a frame containing CRC errors.
Formula None.
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5.10.18 L1 and L2 Overflows of BTS OML Counter L2147: L1 and L2 Overflows of BTS OML.
Meaning The BTS receives physical frames through L1, and then puts them in the queue from L1 to L2. If large amount of information is received within a short period of time, the message queue overflows, messages are lost, and this item increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the message queue from BTS OML L1 to L2 overflows.
Formula None.
5.10.19 Total OML Frames Received by BTS Physical Layer Counter L2148: Total OML Frames Received by BTS Physical Layer.
Meaning The BTS receives the physical frames through layer 1 (L1) and then puts the physical frames in the queue from L1 to L2. This counter increases by 1 when L1 receives an OML frame. If the physical uplink is disrupted, the measurement cannot be sent to the BSC and this counter does not increase.
Trigger Point This counter is measured when BTS L1 receives an OML frame.
Formula None.
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5.11 RSL Measurement per TRX 5.11.1 Overview RSL Measurement per TRX is used to measure the number of various frames sent between the BSC and the BTS. Table 5-13 lists counters of RSL Measurement per TRX. Table 5-13 Counters of RSL Measurement per TRX
5-28
Counter
Section
L4131: RSL Setup Requests Sent from BTS
5.11.2
L4132: RSL Setup Requests Received from BTS
5.11.3
L4133: BTS-Sent Rejects to the RSL Setup Requests Sent by BTS
5.11.4
L4134: BTS-Received Rejects to the RSL Setup Requests
5.11.5
L4135: RSL RNR Frames Sent by BTS
5.11.6
L4136: RSL RNR Frames Received by BTS
5.11.7
L4137: RSL I Frames Resent by BTS
5.11.8
L4138: RSL NRERR Received by BTS
5.11.9
L4139: RSL Layer 3 Requests Received by BTS
5.11.10
L4140: RSL I Frames Sent by BTS
5.11.11
L4141: RSL I Frames Received by BTS
5.11.12
L4142: Queue Overflows of RSL Messages Sent by BTS
5.11.13
L4143: Erroneously Received RSL Long Frames by BTS Physical Layer
5.11.14
L4144: RSL Octet Errors Received by BTS Physical Layer
5.11.15
L4145: RSL Discarded Sequences Received by BTS Physical Layer
5.11.16
L4146: RSL CRC Errors Received by BTS
5.11.17
L4147: L1 and L2 Overflows of BTS RSL
5.11.18
L4148: Total RSL Frames Received by BTS Physical Layer
5.11.19
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5.11.2 RSL Setup Requests Sent from BTS Counter L4131: RSL Setup Requests Sent from BTS.
Meaning This counter measures the number of SABME frames that the BTS L2 sends on the RSL. The SABME frame is sent to request for link setup. During the startup and normal operation of the BSC, the BTS does not initiate link setup or send the SABME frame to the BSC. If the status of the RSL is abnormal (other than Multi_I), the BTS may send the SABME frame to the BSC. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 sends an SABME frame on the RSL.
Formula None.
5.11.3 RSL Setup Requests Received from BTS Counter L4132: RSL Setup Requests Received from BTS.
Meaning This counter measures the number of SABME frames that the BTS L2 receives on the RSL. The SABME frame is sent to request for link setup. After the BSC starts up, the link status is converted to multi-frame (Multi_I) setup through the frame interaction between the L2 entities of the BSC and the BTS. During this procedure, the Abis interface board sends the SABME frame to the BTS L2. During normal operation, the BSC sends the SABME frame to request for link reestablishment if links are abnormal or the physical link between the BSC and the BTS is disrupted.
Trigger Point This counter is measured when the BTS L2 receives an SABME frame on the RSL.
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Formula None.
5.11.4 BTS-Sent Rejects to the RSL Setup Requests Sent by BTS Counter L4133: BTS-Sent Rejects to the RSL Setup Requests Sent by BTS.
Meaning This counter measures the number of REJ frames that the BTS L2 sends on the RSL. The REJ frame is a monitoring frame, which means that the received I frame is rejected. The REJ frame contains the serial number of the expected I frame. I frames are numbered in sequence. The BTS L2 has records for sent and received I frames. Normally, the value of this counter should be 0. If the BTS receives an I frame with an unexpected number, it sends a REJ frame to the BTS, and this counter increases by 1. For example, if the expected serial number of I frames is A, and the received number is B, the BTS L2 sends a REJ frame to request for I frames with the serial number as A. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 sends a REJ frame on the RSL.
Formula None.
5.11.5 BTS-Received Rejects to the RSL Setup Requests Counter L4134: BTS-Received Rejects to the RSL Setup Requests.
Meaning This counter measures the number of REJ frames that the BTS L2 receives on the RSL. The REJ frame is a monitoring frame, which means that the received I frame is rejected. The REJ frame contains the serial number of the expected I frame. I frames are numbered in sequence. The Abis interface board has records for the sent and received I frames. Normally, the value of this counter should be 0. If the BTS receives an I frame with an unexpected number, it sends a REJ frame to the BSC, and this counter increases by 1.
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If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 receives a REJ frame on the RSL.
Formula None.
5.11.6 RSL RNR Frames Sent by BTS Counter L4135: RSL RNR Frames Sent by BTS
Meaning This counter measures the number of RNR frames that the BTS L2 sends on the RSL. The RNR frame is a monitoring frame, which means that the local receiver is busy and is not ready to receive the next I frame. The RNR frame contains the serial number of the expected I frame. The peer end stops sending I frames on receiving RNR frames. If the receiver of the BTS is busy, the BTS sends an RNR frame to the BSC. The BSC stops sending I frames on receiving the RNR frame. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 sends an RNR frame on the RSL.
Formula None.
5.11.7 RSL RNR Frames Received by BTS Counter L4136: RSL RNR Frames Received by BTS
Meaning This counter measures the number of RNR frames that the BTS L2 receives on the RSL. The RNR frame is a monitoring frame, which means that the local receiver is busy and is not ready to receive the next I frame. The RNR frame contains the serial number of the expected I frame. The peer end stops sending I frames on receiving RNR frames.
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If the receiver of the BSC is busy, the BSC sends an RNR frame to the BTS. The BTS stops sending I frames on receiving the RNR frame. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 receives an RNR frame on the RSL.
Formula None.
5.11.8 RSL I Frames Resent by BTS Counter L4137: RSL I Frames Resent by BTS.
Meaning This counter measures the number of REJ frames that the BTS L2 resends on the RSL. If the BTS receives a REJ frame from the BSC, it means that an error occurs when the BSC receives I frames. Then the BTS resends this I frame and all the I frames with numbers bigger than this number after the L2 receiver of the BSC is free. This item increases by 1 when the BTS resends an I frame. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 resends an I frame on the RSL.
Formula None.
5.11.9 RSL NRERR Received by BTS Counter L4138: RSL NRERR Received by BTS.
Meaning This counter measures the number of frames that the BTS L2 RSL receives whose numbers are different from those of the to-be-sent frames. The RR frames, RNR frames, REJ frames, and I frames sent from the BTS to the BSC contain the numbers of the to-be-sent I frames. The BTS records the number range of the to-be-sent I
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frames. If the received I frame number is not within the range, this number is considered to be incorrect, and this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 receives RSL frames whose numbers are different from those of the to-be-sent frames.
Formula None.
5.11.10 RSL Layer 3 Requests Received by BTS Counter L4139: RSL Layer 3 Requests Received by BTS
Meaning This counter measures the number of requests that are sent from BTS L3 to L2 and contain the to-be-confirmed messages. The requests sent from L3 consist of the messages that need or need not be confirmed. The former are transferred in L2 I frames and the latter are transferred in L2 UI frames. All the L3 messages except for the MRs sent by the BTS need be confirmed. This counter increases by 1 when the BTS L2 receives a request containing the to-beconfirmed message from L3. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 RSL receives a request containing the to-beconfirmed message from L3.
Formula None.
5.11.11 RSL I Frames Sent by BTS Counter L4140: RSL I Frames Sent by BTS.
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Meaning This counter measures the number of I frames sent by the BTS L2 on the RSL. The requests sent from L3 consist of the messages that need or need not be confirmed. The former are transferred in L2 I frames and the latter are transferred in L2 UI frames. All the L3 messages except for the MRs sent by the BTS need be confirmed. This counter increases by 1 when the BTS L2 sends an I frame on the RSL. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 sends an I frame on the RSL.
Formula None.
5.11.12 RSL I Frames Received by BTS Counter L4141: RSL I Frames Received by BTS.
Meaning This counter measures the number of I frames the BTS L2 receives. The requests sent from L3 consist of the messages that need or need not be confirmed. The former are transferred in L2 I frames and the latter are transferred in L2 UI frames. All the L3 messages sent by the BSC need be confirmed. This counter increases by 1 when the BTS L2 receives an I frame. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the BTS L2 receives an SABME frame on the RSL.
Formula None.
5.11.13 Queue Overflows of RSL Messages Sent by BTS Counter L4142: Queue Overflows of RSL Messages Sent by BTS.
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Meaning The requests sent from L3 consist of the messages that need or need not be confirmed. The former are transferred in the L2 I frames and the latter re transferred in the L2 UI frames. When the BTS L2 sends the to-be-confirmed messages through I frames, it puts the I frames in a message queue and sends them in sequence. If too many messages need be sent within a short period of time by L3, the message queue overflows, messages are lost, and this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when the RSL message queue of I frames sent by the BTS L2 overflows.
Formula None.
5.11.14 Erroneously Received RSL Long Frames by BTS Physical Layer Counter L4143: Erroneously Received RSL Long Frames by BTS Physical Layer.
Meaning The L3 messages are sent through L2 to L1. Then L1 sends the messages in the form of physical frames. If an error occurs when L1 receives a long frame, this frame is discarded, and this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when BTS L1 receives incorrect RSL long frames.
Formula None.
5.11.15 RSL Octet Errors Received by BTS Physical Layer Counter L4144: RSL Octet Errors Received by BTS Physical Layer
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Meaning The L3 messages are sent through L2 to L1. Then L1 sends the messages in the form of physical frames. If the received frame contains incorrect bytes, this frame is discarded, and this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when BTS L1 receives RSL frames containing byte errors.
Formula None.
5.11.16 RSL Discarded Sequences Received by BTS Physical Layer Counter L4145: RSL Discarded Sequences Received by BTS Physical Layer
Meaning The L3 messages are sent through L2 to L1. Then L1 sends the messages in the form of physical frames. If the received frame contains the discarded series, the frame is discarded, and this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
Trigger Point This counter is measured when BTS L1 receives an RSL frame containing discarded series.
Formula None.
5.11.17 RSL CRC Errors Received by BTS Counter L4146: RSL CRC Errors Received by BTS
Meaning The L3 messages are sent through L2 to L1. Then L1 sends the messages in the form of physical frames. If L1 receives a frame containing CRC errors, the frame is discarded, and this counter increases by 1. If the physical uplink is disrupted, the measurement result cannot be sent to the BSC, and this counter does not increase.
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Trigger Point This counter is measured when the BTS L1 receives the RSL CRC errors.
Formula None.
5.11.18 L1 and L2 Overflows of BTS RSL Counter L4147: L1 and L2 Overflows of BTS RSL.
Meaning The BTS receives the physical frames through layer 1 (L1) and then puts the physical frames in the queue from L1 to L2. This counter increases by 1 when L1 receives too many messages and the message queue overflows. If the physical uplink is disrupted, the measurement cannot be sent to the BSC and this counter does not increase.
Trigger Point This counter is measured when the message queue from BTS RSL L1 to L2 overflows.
Formula None.
5.11.19 Total RSL Frames Received by BTS Physical Layer Counter L4148: Total RSL Frames Received by BTS Physical Layer.
Meaning The BTS receives the physical frames through layer 1 (L1) and then puts the physical frames in the queue from L1 to L2. This counter increases by 1 when L1 receives an RSL frame. If the physical uplink is disrupted, the measurement cannot be sent to the BSC and this counter does not increase.
Trigger Point This counter is measured when the BTS L1 receives an RSL frame.
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Formula None.
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6
Resources Measurement
About This Chapter The following table lists the sections of this chapter. Section
Describes
6.1 Overview of Resources Measurement
Introduces the functions and measurement units of Resources Measurement.
6.2 A Interface Circuit Measurement per DPC
Describes the functions and counters of A Interface Circuit Measurement per DPC.
6.3 TC Measurement per DPC
Describes the functions and counters of TC Measurement per DPC.
6.4 Pb Interface Circuit Measurement per PCU
Describes the functions and counters of Pb Interface Circuit Measurement per PCU.
6.5 Ater Interface Circuit Measurement per BM Subrack
Describes the functions and counters of Ater Interface Circuit Measurement per BM Subrack.
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6.1 Overview of Resources Measurement Resources Measurement is used to measure the state of circuits on the A interface, Pb interface, and Ater interface, and the TC resources. Table 6-1 lists the measurement units of Resources Measurement. Table 6-1 Measurement Units of Resources Measurement Measurement Unit
Section
A Interface Circuit Measurement per DPC
6.2
TC Measurement per DPC
6.3
Pb Interface Circuit Measurement per PCU
6.4
Ater Interface Circuit Measurement per BM Subrack
6.5
DPC: Destination Signaling Point Code BM: Base Module BM subrack = GSM Main Processing Subrack (GMPS)/GSM Extended Processing Subrack (GEPS)
6.2 A Interface Circuit Measurement per DPC 6.2.1 Overview A Interface Circuit Measurement per DPC is used to measure the circuits in a faulty, busy, idle, uninstalled, and maintenance state. Table 6-2 lists counters of A Interface Circuit Measurement per DPC. Table 6-2 Counters of A Interface Circuit Measurement per DPC
6-2
Counter
Section
AL0050: Mean Number of Uninstalled Circuits on the A Interface
6.2.2
AL0051: Mean Number of Faulty Circuits on the A Interface
6.2.3
AL0052: Mean Number of Circuits in Maintenance State on the A Interface
6.2.4
AL0053: Mean Number of Blocked Circuits on the A Interface
6.2.5
AL0054: Mean Number of Idle Circuits on the A Interface
6.2.6
AL0055: Mean Number of Busy Circuits on the A Interface
6.2.7
AL0089: Mean Number of Circuits with Uninstalled Peer Circuits on the A Interface
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6.2.2 Mean Number of Uninstalled Circuits on the A Interface Counter AL0050: Mean Number of Uninstalled Circuits on the A Interface.
Meaning This counter measures the mean number of uninstalled circuits on the A interface.
Trigger Point The BSC measures the number of uninstalled circuits on the A interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Uninstalled Circuits on the A Interface = [Sampling Number of Uninstalled Circuits on the A Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
6.2.3 Mean Number of Faulty Circuits on the A Interface Counter AL0051: Mean Number of Faulty Circuits on the A Interface.
Meaning This counter measures the mean number of faulty circuits on the A interface.
Trigger Point The BSC measures the number of faulty circuits on the A interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Faulty Circuits on the A Interface = [Sampling Number of Faulty Circuits on the A Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
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6.2.4 Mean Number of Circuits in Maintenance State on the A Interface Counter AL0052: Mean Number of Circuits in Maintenance State on the A Interface.
Meaning This counter measures the mean number of circuits in maintenance state on the A interface.
Trigger Point The BSC measures the number of circuits in the maintenance state on the A interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Circuits in Maintenance State on the A Interface = [Sampling Number of Circuits in Maintenance State on the A Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
6.2.5 Mean Number of Blocked Circuits on the A Interface Counter AL0053: Mean Number of Blocked Circuits on the A Interface.
Meaning This counter measures the mean number of Blocked Circuits on the A Interface.
Trigger Point The BSC measures the number of blocked circuits on the A interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Blocked Circuits on the A Interface = [Sampling Number of Blocked Circuits on the A Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
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6.2.6 Mean Number of Idle Circuits on the A Interface Counter AL0054: Mean Number of Idle Circuits on the A Interface.
Meaning This counter measures the mean number of idle circuits on the A interface.
Trigger Point The BSC measures the number of idle circuits on the A interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Idle Circuits on the A Interface = [Sampling Number of Idle Circuits on the A Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
6.2.7 Mean Number of Busy Circuits on the A Interface Counter AL0055: Mean Number of Busy Circuits on the A Interface.
Meaning This counter measures the mean number of busy circuits on the A interface.
Trigger Point The BSC measures the number of busy circuits on the A interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Busy Circuits on the A Interface = [Sampling Number of Busy Circuits on the A Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
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6.2.8 Mean Number of Circuits with Uninstalled Peer Circuits on the A Interface Counter AL0056: Mean Number of Circuits with Uninstalled Peer Circuits on the A Interface.
Meaning This counter measures the mean number of circuits with uninstalled peer circuits on the A interface.
Trigger Point The BSC measures the number of circuits whose peer circuits are uninstalled on the A interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Circuits with Uninstalled Peer Circuits on the A Interface = [Sampling Number of A Circuits with Uninstalled Peer Circuits on the A Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
6.3 TC Measurement per DPC 6.3.1 Overview TC Measurement per DPC is used to measure the faulty, idle, and busy TC Resources. Table 6-3 lists the counters of TC Measurement per DPC. Table 6-3 Counters of TC Measurement per DPC
6-6
Counter
Section
AR0751: Mean Number of Faulty TC Resources
6.3.2
AR0754: Mean Number of Idle TC Resources
6.3.3
AR0755: Mean Number of Busy TC Resources
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6.3.2 Mean Number of Faulty TC Resources Counter AR0751: Mean Number of Faulty Transcoders (TC Resources).
Meaning This counter measures the mean number of faulty TC Resources.
Trigger Point The BSC measures the number of faulty TC Resources every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Faulty TC Resources = [Sampling Number of Faulty TC Resources]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
6.3.3 Mean Number of Idle TC Resources Counter AR0754: Mean Number of Idle TC Resources.
Meaning This counter measures the mean number of idle TC Resources.
Trigger Point The BSC measures the number of idle TC Resources every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Idle TC Resources = [Sampling Number of Idle TC Resources]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
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6.3.4 Mean Number of Busy TC Resources Counter AR0755: Mean Number of Busy TC Resources.
Meaning This counter measures the mean number of busy TC Resources.
Trigger Point The BSC measures the number of busy TC Resources every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Busy TC Resources = [Sampling Number of Busy TC Resources]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
6.4 Pb Interface Circuit Measurement per PCU 6.4.1 Overview Pb Interface Circuit Measurement per PCU is used to measure the faulty, and busy circuits, and the circuits in the maintenance state. Table 6-4 lists counters of Pb Interface Circuit Measurement per PCU. Table 6-4 Counters of Pb Interface Circuit Measurement per PCU
6-8
Counter
Section
AL8351: Mean Number of Faulty Circuits on the Pb Interface
6.4.2
AL8353: Mean Number of Blocked Circuits on the Pb Interface
6.4.3
AL8354: Mean Number of Idle Circuits on the Pb Interface
6.4.4
AL8355: Mean Number of Busy Circuits on the Pb Interface
6.4.5
AL8352: Mean Number of Circuits in Maintenance State on the Pb Interface
6.4.6
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6.4.2 Mean Number of Faulty Circuits on the Pb Interface Counter AL8351: Mean Number of Faulty Circuits on the Pb Interface.
Meaning This counter measures the mean number of faulty circuits on the Pb interface.
Trigger Point The BSC measures the number of faulty circuits on the Pb interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Faulty Circuits on the Pb Interface = [Sampling Number of Faulty Circuits on the Pb Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
6.4.3 Mean Number of Blocked Circuits on the Pb Interface Counter AL8353: Mean Number of Blocked Circuits on the Pb Interface.
Meaning This counter measures the mean number of blocked circuits on the Pb interface.
Trigger Point The BSC measures the number of blocked circuits on the Pb interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Blocked Circuits on the Pb Interface = [Sampling Number of Blocked Circuits on the Pb Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
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6.4.4 Mean Number of Idle Circuits on the Pb Interface Counter AL8354: Mean Number of Idle Circuits on the Pb Interface.
Meaning This counter measures the mean number of idle circuits on the Pb interface.
Trigger Point The BSC measures the number of idle circuits on the Pb interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Idle Circuits on the Pb Interface = [Sampling Number of Idle Circuits on the Pb Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
6.4.5 Mean Number of Busy Circuits on the Pb Interface Counter AL8355: Mean Number of Busy Circuits on the Pb Interface.
Meaning This counter measures the mean number of busy circuits on the Pb interface.
Trigger Point The BSC measures the number of busy circuits on the Pb interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Busy Circuits on the Pb Interface = [Sampling Number of Busy Circuits on the Pb Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
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6.4.6 Mean Number of Circuits in Maintenance State on the Pb Interface Counter AL8352: Mean Number of Circuits in Maintenance State on the Pb Interface.
Meaning This counter measures the mean number of circuits in the maintenance state on the Pb interface.
Trigger Point The BSC measures the number of circuits in the maintenance state on the Pb interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Circuits in Maintenance State on the Pb Interface = [Sampling Number of Circuits in Maintenance State on the Pb Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
6.5 Ater Interface Circuit Measurement per BM Subrack 6.5.1 Overview Ater Interface Circuit Measurement per BM Subrack is used to measure the faulty, idle, and busy circuits on the Ater interface. Table 6-5 lists the counters of Ater Interface Circuit Measurement per BM Subrack. Table 6-5 Counters of Ater Interface Circuit Measurement per BM Subrack Counter
Section
AL1251: Mean Number of Faulty Circuits on the Ater Interface
6.5.2
AL1254: Mean Number of Idle Circuits on the Ater Interface
6.5.3
AL1255: Mean Number of Busy Circuits on the Ater Interface
6.5.4
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6.5.2 Mean Number of Faulty Circuits on the Ater Interface Counter AL1251: Mean Number of Faulty Circuits on the Ater Interface.
Meaning This counter measures the mean number of faulty circuits on the Ater interface.
Trigger Point The BSC measures the number of faulty circuits on the Ater interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Faulty Circuits on the Ater Interface = [Sampling Number of Faulty Circuits on the Ater Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
6.5.3 Mean Number of Idle Circuits on the Ater Interface Counter AL1254: Mean Number of Idle Circuits on the Ater Interface.
Meaning This counter measures the mean number of idle circuits on the Ater interface.
Trigger Point The BSC measures the number of idle circuits on the Ater interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Idle Circuits on the Ater Interface = [Sampling Number of Idle Circuits on the Ater Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
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6.5.4 Mean Number of Busy Circuits on the Ater Interface Counter AL1255: Mean Number of Busy Circuits on the Ater Interface.
Meaning This counter measures the mean number of busy circuits on the Ater interface.
Trigger Point The BSC measures the number of busy circuits on the Ater interface every 10 s. This counter is calculated by the later-mentioned formula.
Formula Mean Number of Busy Circuits on the Ater Interface = [Sampling Number of Busy Circuits on the Ater Interface]/({GP}*{6})
GP: Granularity Period. (Unit: minute)
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7
MSC Measurement
About This Chapter The following table lists the sections of this chapter. Section
Describes
7.1 Overview of MSC Measurement
Introduces the functions and measurement unit of MSC Measurement.
7.2 MSC Measurement per DPC
Describes the functions and counters of MSC Measurement per DPC.
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7.1 Overview of MSC Measurement MSC Measurement is used to measure the number of Number of MSC Resets and the number of messages that the BSC receives from the MSC. Table 7-1 lists the measurement unit of MSC Measurement. Table 7-1 Measurement Unit of MSC Measurement Measurement Unit
Section
MSC Measurement per DPC
7.2
7.2 MSC Measurement per DPC 7.2.1 Overview MSC Measurement per DPC is used to measure the number of Number of MSC Resets and the number of messages that the BSC receives from the MSC. Table 7-2 lists the counters of MSC Measurement per DPC. Table 7-2 Counters of MSC Measurement per DPC Counter
Section
L0056A: Number of MSC Resets
7.2.2
L0056B: Number of Messages Received from MSC
7.2.3
7.2.2 Number of MSC Resets Counter L0056A: Number of MSC Resets.
Meaning This counter measures the number of Number of MSC Resets.
Trigger Point This counter increases by 1 when the BSC receives a reset message from the MSC.
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Formula None.
7.2.3 Number of Messages Received from MSC Counter L0056B: Number of Messages Received from MSC.
Meaning This counter measures the number of messages that the BSC receives from the MSC.
Trigger Point This counter increases by 1 when the BSC receives messages from the MSC.
Formula None.
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8
CBC Measurement
About This Chapter The following table lists the sections of this chapter. Section
Describes
8.1 Overview of CBC Measurement
Introduces the CBC measurement and its measurement units.
8.2 CBC Measurement per BSC
Describes CBC measurement per BSC and its counters.
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8.1 Overview of CBC Measurement Cell Broadcast Center (CBC) measurement refers to the measurement of the reception of cell broadcast data and the response of the BSC to the data. Table 8-1 lists the measurement unit of CBC measurement. Table 8-1 Measurement unit of CBC measurement Measurement Unit
Section
CBC Measurement per BSC
8.2
8.2 CBC Measurement per BSC 8.2.1 Overview CBC Measurement is used to measure the reception of cell broadcast data and the response of the BSC to the data. Table 8-2 lists the counters of CBC Measurement. Table 8-2 Counters of CBC Measurement
8-2
Counter
Section
L0457: WRITE-REPLACE Requests Received by BSC
8.2.2
L0458: KILL Requests Received by BSC
8.2.3
L0459: STATUS-CBCH-QUERY Requests Received by BSC
8.2.4
L0460: STATUS-MESSAGE-QUERY Requests Received by BSC
8.2.5
L0461: SET-DRX Requests Received by BSC
8.2.6
L0462: RESET Requests Received by BSC
8.2.7
L0463: REPORT Responses to WRITE-REPLACE Requests
8.2.8
L0464: REJECT Responses to WRITE-REPLACE Requests
8.2.9
L0465: REPORT Responses to KILL Requests
8.2.10
L0466: REJECT Responses to KILL Requests
8.2.11
L0467: REPORT Responses to STATUS-CBCH-QUERY Requests
8.2.12
L0468: REJECT Responses to STATUS-CBCH-QUERY Requests
8.2.13
L0469: REPORT Responses to STATUS-MESSAGE-QUERY Requests
8.2.14
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Counter
Section
L0470: REJECT Responses to STATUS-MESSAGE-QUERY Requests
8.2.15
L0471: REPORT Responses to SET-DRX Requests
8.2.16
L0472: REJECT Responses to SET-DRX Requests
8.2.17
L0473: RESTART-INDICATION Requests Sent from BSC
8.2.18
L0474: REJECT Responses to RESTART-INDICATION Requests
8.2.19
L0475: FAILURE-INDICATION Requests Sent from BSC
8.2.20
L0476: CBCH Loading Indications Received by BSC (Overflow)
8.2.21
L0477: CBCH Loading Indications Received by BSC (Underflow)
8.2.22
L0478: WRITE-REPLACE Requests (WRITE Requests) Received by BSC
8.2.23
L0479: REPORT Responses to WRITE-REPLACE Requests (WRITE Requests)
8.2.24
L0480: REJECT Responses to WRITE-REPLACE Requests (WRITE Requests)
8.2.25
L0481: WRITE-REPLACE Requests (REPLACE Requests) Received by BSC
8.2.26
L0482: REPORT Responses to WRITE-REPLACE Requests (REPLACE Requests)
8.2.27
L0483: REJECT Responses to WRITE-REPLACE Requests (REPLACE Requests)
8.2.28
AL0484: Mean Capacity of BSC Message Library
8.2.29
L0486: Disruptions of the BSC-CBC Connection
8.2.30
8.2.2 WRITE-REPLACE Requests Received by BSC Counter L0457: WRITE-REPLACE Requests Received by BSC
Meaning This counter measures the number of times the BSC receives a WRITE-REPLACE request on the BSC-CBC interface.
Trigger Point This counter increases by one when the BSC receives a WRITE-REPLACE request from the CBC.
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Formula None.
8.2.3 KILL Requests Received by BSC Counter L0458: KILL Requests Received by BSC
Meaning This counter is used to measure the number of times the BSC receives a KILL request on the BSC-CBC interface.
Trigger Point This counter increases by one when the BSC receives a KILL request from the CBC.
Formula None.
8.2.4 STATUS-CBCH-QUERY Requests Received by BSC Counter L0459: STATUS-CBCH-QUERY Requests Received by BSC
Meaning This counter is used to measure the number of times the BSC receives a STATUS-CBCHQUERY request on the BSC-CBC interface.
Trigger Point This counter increases by one when the BSC receives a STATUS-CBCH-QUERY request from the CBC.
Formula None.
8.2.5 STATUS-MESSAGE-QUERY Requests Received by BSC Counter L0460: STATUS-MESSAGE-QUERY Requests Received by BSC
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Meaning This counter is used to measure the number of times the BSC receives a STATUSMESSAGE-QUERY request on the BSC-CBC interface.
Trigger Point This counter increases by one when the BSC receives a STATUS-MESSAGE-QUERY request from the CBC.
Formula None.
8.2.6 SET-DRX Requests Received by BSC Counter L0461: SET-DRX Requests Received by BSC
Meaning This counter is used to measure the number of times the BSC receives a SET-DRX request on the BSC-CBC interface.
Trigger Point This counter increases by one when the BSC receives a SET-DRX request from the CBC.
Formula None.
8.2.7 RESET Requests Received by BSC Counter L0462: RESET Requests Received by BSC
Meaning This counter is used to measure the number of times the BSC receives a RESET request on the BSC-CBC interface.
Trigger Point This counter increases by one when the BSC receives a RESET request from the CBC.
Formula None.
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8.2.8 REPORT Responses to WRITE-REPLACE Requests Counter L0463: REPORT Responses to WRITE-REPLACE Requests
Meaning This counter is used to measure the number of REPORT responses to WRITE-REPLACE requests from the BSC to the CBC.
After receiving a WRITE-REPLACE request on the BSC-CBC interface, the BSC sends a REPORT response message or a REJECT response message to the CBC.
Trigger Point This counter increases by one when the BSC sends the CBC a REPORT response to the WRITE-REPLACE request.
Formula None.
8.2.9 REJECT Responses to WRITE-REPLACE Requests Counter L0464: REJECT Responses to WRITE-REPLACE Requests
Meaning This counter is used to measure the number of REJECT responses to WRITE-REPLACE requests from the BSC to the CBC.
After receiving a WRITE-REPLACE request on the BSC-CBC interface, the BSC sends a REPORT response message or a REJECT response message to the CBC.
Trigger Point This counter increases by one when the BSC sends a REJECT response message to the CBC.
Formula None.
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8.2.10 REPORT Responses to KILL Requests Counter L0465: REPORT Responses to KILL Requests
Meaning This counter is used to measure the number of REPORT responses to KILL requests from the BSC to the CBC.
After receiving a KILL request on the BSC-CBC interface, the BSC sends a REPORT response message or a REJECT response message to the CBC.
Trigger Point This counter increases by one when the BSC sends the CBC a REPORT response to the KILL request.
Formula None.
8.2.11 REJECT Responses to KILL Requests Counter L0466: REJECT Responses to KILL Requests
Meaning This counter is used to measure the number of REJECT responses to KILL requests from BSC to the CBC.
After receiving a KILL request on the BSC-CBC interface, the BSC sends a REPORT response message or a REJECT response message to the CBC.
Trigger Point This counter increases by one when the BSC sends the CBC a REJECT response to the KILL request.
Formula None.
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8.2.12 REPORT Responses to STATUS-CBCH-QUERY Requests Counter L0467: REPORT Responses to STATUS-CBCH-QUERY Requests
Meaning This counter is used to measure the number of REPORT responses to STATUS-CBCHQUERY requests from the BSC to the CBC.
After receiving a STATUS-CBCH-QUERY request on the BSC-CBC interface, the BSC sends a REPORT response message or a REJECT response message to the CBC.
Trigger Point This counter increases by one when the BSC sends the CBC a REPORT response to the STATUS-CBCH-QUERY request.
Formula None.
8.2.13 REJECT Responses to STATUS-CBCH-QUERY Requests Counter L0468: REJECT Responses to STATUS-CBCH-QUERY Requests
Meaning This counter is used to measure the number of REJECT responses to STATUS-CBCHQUERY requests from the BSC to the CBC.
After receiving a STATUS-CBCH-QUERY request on the BSC-CBC interface, the BSC sends a REPORT response message or a REJECT response message to the CBC.
Trigger Point This counter increases by one when the BSC sends the CBC a REJECT response to the STATUS-CBCH-QUERY request.
Formula None.
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8.2.14 REPORT Responses to STATUS-MESSAGE-QUERY Requests Counter L0469: REPORT Responses to STATUS-MESSAGE-QUERY Requests
Meaning This counter is used to measure the number of REPORT responses to STATUS-MESSAGEQUERY requests from the BSC to the CBC.
After receiving a STATUS-MESSAGE-QUERY query on the BSC-CBC interface, the BSC sends a REPORT response message or a REJECT response message to the CBC.
Trigger Point This counter increases by one when the BSC sends the CBC a REPORT response to the STATUS-MESSAGE-QUERY request.
Formula None.
8.2.15 REJECT Responses to STATUS-MESSAGE-QUERY Requests Counter L0470: REJECT Responses to STATUS-MESSAGE-QUERY Requests
Meaning This counter is used to measure the number of REJECT responses to STATUS-MESSAGEQUERY requests from the BSC to the CBC.
After receiving a STATUS-MESSAGE-QUERY query on the BSC-CBC interface, the BSC sends a REPORT response message or a REJECT response message to the CBC.
Trigger Point This counter increases by one when the BSC sends a REJECT response to the STATUSMESSAGE-QUERY request.
Formula None.
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8.2.16 REPORT Responses to SET-DRX Requests Counter L0471: REPORT Responses to SET-DRX Requests
Meaning This counter is used to measure the number of REPORT responses to SET-DRX requests from the BSC to the CBC.
After receiving a SET-DRX request on the BSC-CBC interface, the BSC sends a REPORT response message or a REJECT response message to the CBC.
Trigger Point This counter increases by one when the BSC sends the CBC a REPORT response to the SETDRX request.
Formula None.
8.2.17 REJECT Responses to SET-DRX Requests Counter L0472: REJECT Responses to SET-DRX Requests
Meaning This counter is used to measure the number of REJECT responses to SET-DRX requests from the BSC to the CBC.
After receiving a SET-DRX request on the BSC-CBC interface, the BSC sends a REPORT response message or a REJECT response message to the CBC.
Trigger Point This counter increases by one when the BSC sends the CBC a REJECT response to SET-DRX request.
Formula None.
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8.2.18 RESTART-INDICATION Requests Sent from BSC Counter L0473: RESTART-INDICATION Requests Sent from BSC
Meaning This counter is used to measure the number of RESTART-INDICATION requests sent from BSC to the CBC.
After receiving a RESET message on the BSC-CBC interface, the BSC sends a RESTARTINDICATION requests or a REJECT response message to the CBC.
Trigger Point This counter increases by one when the BSC sends a RESTART-INDICATION request to the CBC.
Formula None.
8.2.19 REJECT Responses to RESTART-INDICATION Requests Counter L0474: REJECT Responses to RESTART-INDICATION Requests
Meaning This counter is used to measure the number of REJECT responses to RESTARTINDICATION requests from the BSC to the CBC.
After receiving a RESET message on the BSC-CBC interface, the BSC sends a RESTARTINDICATION requests or a REJECT response message to the CBC.
Trigger Point This counter increases by one when the BSC sends the CBC a REJECT response message to the RESTART-INDICATION request.
Formula None.
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8.2.20 FAILURE-INDICATION Requests Sent from BSC Counter L0475: FAILURE-INDICATION Requests Sent from BSC
Meaning This counter is used to measure the number of FAILURE-INDICATION requests sent from the BSC to the CBC.
Trigger Point This counter increases by one when the BSC sends a FAILURE-INDICATION request to the CBC.
Formula None.
8.2.21 CBCH Loading Indications Received by BSC (Overflow) Counter L0476: CBCH Loading Indications Received by BSC (Overflow)
Meaning This counter is used to measure the number of CBCH Loading Indication (overflow) messages received by the BSC from the BTS.
Trigger Point This counter increases by one when the BSC receives a CBCH Loading Indication (overflow) message from the BTS.
Formula None.
8.2.22 CBCH Loading Indications Received by BSC (Underflow) Counter L0477: CBCH Loading Indications Received by BSC (Underflow)
Meaning This counter is used to measure the number of CBCH Loading Indication (underflow) messages received by the BSC from the BTS.
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Trigger Point This counter increases by one when the BSC receives a CBCH Loading Indication (underflow) message from the BTS.
Formula None.
8.2.23 WRITE-REPLACE Requests (WRITE Requests) Received by BSC Counter L0478: WRITE-REPLACE Requests (WRITE Requests) Received by BSC
Meaning This counter is used to measure the number of WRITE-REPLACE requests (WRITE requests) received by the BSC.
Trigger Point This counter increases by one when the BSC receives a WRITE-REPLACE request (WRITE request).
Formula None.
8.2.24 REPORT Responses to WRITE-REPLACE Requests (WRITE Requests) Counter L0479: REPORT Responses to WRITE-REPLACE Requests (WRITE Requests)
Meaning This counter is used to measure the number of REPORT responses to WRITE-REPLACE requests (WRITE requests) from the BSC.
Trigger Point This counter increases by one when the BSC sends a REPORT response message to the WRITE-REPLACE request (WRITE request).
Formula None.
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8.2.25 REJECT Responses to WRITE-REPLACE Requests (WRITE Requests) Counter L0480: REJECT Responses to WRITE-REPLACE Requests (WRITE Requests)
Meaning This counter is used to measure the number of REJECT responses to WRITE-REPLACE requests (WRITE requests) from the BSC.
Trigger Point This counter increases by one when the BSC sends a REJECT response to the WRITEREPLACE request (WRITE request).
Formula None.
8.2.26 WRITE-REPLACE Requests (REPLACE Requests) Received by BSC Counter L0481: WRITE-REPLACE Requests (REPLACE Requests) Received by BSC
Meaning This counter is used to measure the number of WRITE-REPLACE requests (REPLACE requests) received by the BSC.
Trigger Point This counter increases by one when the BSC receives a WRITE-REPLACE request (REPLACE request).
Formula None.
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8.2.27 REPORT Responses to WRITE-REPLACE Requests (REPLACE Requests) Counter L0482: REPORT Responses to WRITE-REPLACE Requests (REPLACE Requests)
Meaning This counter is used to measure the number of REPORT responses to WRITE-REPLACE requests (REPLACE requests) from the BSC.
Trigger Point This counter increases by one when the BSC sends a REPORT response message to the WRITE-REPLACE request (REPLACE request).
Formula None.
8.2.28 REJECT Responses to WRITE-REPLACE Requests (REPLACE Requests) Counter L0483: REJECT Responses to WRITE-REPLACE Requests (REPLACE Requests)
Meaning This counter is used to measure the number of REJECT responses to WRITE-REPLACE requests (REPLACE requests) from the BSC.
Trigger Point This counter increases by one when the BSC sends a REJECT response message to the WRITE-REPLACE request (REPLACE request).
Formula None.
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8.2.29 Mean Capacity of BSC Message Library Counter AL0484: Mean Capacity of BSC Message Library
Meaning This counter is used to measure the mean number of messages in the BSC message library.
Trigger Point None.
Formula Mean number of messages in the BSC message library = Accumulated number of messages in the BSC message library/Number of samplings of messages in the BSC message library
8.2.30 Disruptions of the BSC-CBC Connection Counter L0486: Disruptions of the BSC-CBC Connection
Meaning This counter is used to measure the number of times the connection between the BSC and the CBC disrupts.
Trigger Point This counter increases by one when the connection between the BSC and the CBC disrupts.
Formula None.
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9
PCU Measurement
About This Chapter The following table lists the sections of this chapter. Section
Describes
9.1 Overview of PCU Measurement
Introduces the functions and measurement units of PCU Measurement.
9.2 PCU Measurement per BSC
Describes the functions and counters of PCU Measurement per BSC.
9.3 PCU Measurement per PCU
Describes the functions and counters of PCU Measurement per PCU.
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9.1 Overview of PCU Measurement PCU Measurement is used to measure the number of messages that the BSC receives from the PCU. Table 9-1 lists the measurement units of PCU Measurement. Table 9-1 Measurement units of PCU Measurement Measurement Unit
Section
PCU Measurement per BSC
9.2
PCU Measurement per PCU
9.3
9.2 PCU Measurement per BSC 9.2.1 Overview PCU Measurement per BSC is used to measure the number of messages that the BSC receives from the PCU. Table 9-2 lists the counters of PCU Measurement per BSC. Table 9-2 Counters of PCU Measurement per BSC Counter
Section
L0387: Total Messages Received from PCU
9.2.2
9.2.2 Total Messages Received from PCU Counter L0387: L0387: Total Messages Received from PCU.
Meaning This counter measures the number of messages that the BSC receives from all the PCUs.
Trigger Point This counter increases by 1 when the BSC receives a message from the PCU.
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Formula None.
9.3 PCU Measurement per PCU 9.3.1 Overview PCU Measurement per PCU is used to measure the number of messages that the BSC receives from one PCU. Table 9-3 lists the counter of PCU Measurement per PCU. Table 9-3 Counter of PCU Measurement per PCU Counter
Section
L8387: Messages Received from a PCU
9.3.2
9.3.2 Messages Received from a PCU Counter L8387: Messages Received from one PCU.
Meaning This counter measures the number of messages that the BSC receives from one PCU.
Trigger Point This counter increases by 1 when the BSC receives a message from a PCU.
Formula None.
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10
Paging Measurement
About This Chapter The following table lists the sections of this chapter. Section
Describes
10.1 Overview of Paging Measurement
Introduces the measurement units of Paging Measurement.
10.2 A Interface Paging Measurement
Describes the functions and counters of Measurement of the Paging on the A Interface per BSC.
10.3 Abis Interface Paging Measurement
Describes the functions and counters of Measurement of the Paging on the Abis Interface per Cell.
10.4 Measurement of Discarded Paging Messages due to Overload per LAPD
Describes the functions and counters of Measurement of Discarded Paging Messages due to Overload per LAPD.
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10.1 Overview of Paging Measurement Paging Measurement refers to the measurement of the number of paging messages on the A interface and Abis interface. Table 10-1 lists the measurement units of Paging Measurement. Table 10-1 Measurement units of Paging Measurement Measurement Unit
Section
A Interface Paging Measurement
10.2
Abis Interface Paging Measurement
10.3
Measurement of Discarded Paging Messages due to Overload per LAPD
10.4
10.2 A Interface Paging Measurement 10.2.1 Overview of A Interface Paging Measurement Measurement of the Paging on the A Interface per BSC refers to the measurement of the number of paging messages from the core network. The paging messages from the core network have two types, the circuit service (CS) pagings, and the packet service (PS) pagings. The CS pagings are sent from the MSC to the BSC on the A interface, and the PS pagings are sent from the SGSN to the BSC through the SGSN on the Gb interface (The pagings can be sent directly to the BSC when the BSC has a built-in PCU). The CS pagings can be sent to the BSC through the SGSN and the PCU when the Gs interface (interface between the MSC and the SGSN) is available. Table 10-2 lists the counters of Measurement of the Paging on the A Interface per BSC Table 10-2 Counters of Measurement of the Paging on the A Interface per BSC
10-2
Number
Counter
1
A0300: MSC-Initiated Paging Requests for CS Service
2
A0301: SGSN-Initiated Paging Requests for CS Service
3
A031: SGSN-Initiated Paging Requests for PS Service
4
A032: Delivered to BTS for CS Service
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10.2.2 MSC-Initiated Paging Requests for CS Service Counter A0300: MSC-Initiated Paging Requests for CS Service
Meaning This counter measures the number of CS paging requests sent from the MSC to the BSC. The CS paging requests are sent directly from the MSC to the BSC, and the BSC measures this counter after receiving such a paging request.
Trigger Point This counter is measured when the BSC receives an MSC-initiated paging request, as shown in Figure 10-1. Figure 10-1 MSC-initiated paging procedure for CS service MS
MSC
BSC
BTS
PAGING A PAGING CMD PAGING REQ CHAN REQ CHAN RED
Formula None.
10.2.3 SGSN-Initiated Paging Requests for CS Service Counter A0301: SGSN-Initiated Paging Requests for CS Service.
Meaning This counter measures the number of CS paging requests sent from the SGSN to the BSC. The CS paging requests are sent from the SGSN to the BSC through the PCU. The BSC measures this counter after receiving such a paging request.
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Trigger Point This counter is measured when the BSC receives the PAGING (CS) message from the PCU or the SGSN, as shown in Figure 10-2. Figure 10-2 SGSN-initiated paging procedure for CS service MS
BTS
BSC
PCU/SGSN PAGING(CS)
A PAGING CMD PAGING REQ CHAN REQ CHAN RQD CHAN REQ
Formula None.
This counter takes effect only when the Gs interface (interface between the MSC and the SGSN) is available.
10.2.4 SGSN-Initiated Paging Requests for PS Service Counter A031: SGSN-Initiated Paging Requests for PS Service
Meaning This counter measures the number of PS paging requests sent from the SGSN to the BSC. The PS paging requests are sent from the SGSN to the BSC through the PCU. The BSC measures this counter after receiving such a paging request.
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Trigger Point This counter is measured when the BSC receives the PAGING (PS) message from the PCU or the SGSN, as shown in Figure 10-3. Figure 10-3 SGSN-initiated paging procedure for PS service MS
BTS
BSC
PCU
SGSN
PAGING（PS） A
PAGING REQ
PAGING CMD PAGING REQ PAGING REQ
CHAN REQ CHAN RQD CHAN REQ
Formula None.
10.2.5 Delivered to BTS for CS Service Counter A032: Delivered to BTS for CS Service
Meaning This counter measures the number of paging requests delivered from the BSC to the BTS. You can judge whether the paging messages are lost with the reference of A0300: MSC-Initiated Paging Requests for CS Service.
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Trigger Point This counter is measured when the BSC delivers a paging request to the BTS, as shown in Figure 10-4. Figure 10-4 BSC-delivered CS paging procedure MS
MSC
BSC
BTS
PAGING
PAGING CMD PAGING REQ A CHAN REQ CHAN RQD
Formula None.
10.3 Abis Interface Paging Measurement 10.3.1 Overview of Abis Interface Paging Measurement Measurement of the Paging on the Abis Interface per Cell refers to the measurement of the number of PS and CS pagings that the BSC sends to the BTS on the Abis interface. Table 10-3 lists the counters of Measurement of the Paging on the Abis Interface per Cell. Table 10-3 Counters of Measurement of the Paging on the Abis Interface per Cell Number
Counter
1
A330: Delivered Paging Messages for CS Service
2
A331: Delivered Paging Messages for PS Service
10.3.2 Delivered Paging Messages for CS Service Counter A330: Delivered Paging Messages for CS Service
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Meaning The BSC delivers the PAGING CMD message based on the cell identity after it receives the PAGING message from the MSC or the PCU, and this counter is measured.
Trigger Point This counter is measured when the BSC delivers a PAGING CMD to the BTS, as shown in Figure 10-5. Figure 10-5 CS paging procedure MS
BTS
BSC
SGSN
PCU
MSC
PAGING PAGING PAGING REQ PAGING REQ PAGING CMD PAGING REQ
A
Formula None.
10.3.3 Delivered Paging Messages for PS Service Counter A331: Delivered Paging Messages for PS Service.
Meaning The SGSN delivers the PAGING REQ message to the PCU. The PCU processes the message and then sends the PACKET PAGING message to the BSC. The BSC delivers the PS PAGING CMD to related cells based on the cell identity in the PACKET PAGING message and this counter is measured.
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Trigger Point This counter is measured when the BSC delivers a PS PAGING CMD message to the BTS, as shown in Figure 10-6. Figure 10-6 PS paging procedure MS
BTS
BSC
SGSN
PCU PAGING REQ PAGING
PS PAGING CMD A
PAGING REQ
Formula None.
10.4 Measurement of Discarded Paging Messages due to Overload per LAPD 10.4.1 Overview of Measurement of Discarded Paging Messages due to Overload per LAPD Measurement of Discarded Paging Messages due to Overload per LAPD refers to the measurement of the discarded number of CS and PS pagings on the LAPD link due to overload of the system. Table 10-4 lists the counters of Measurement of Discarded Paging Messages due to Overload per LAPD. Table 10-4 Counters of Measurement of Discarded Paging Messages due to Overload per LAPD
10-8
Number
Counter
1
A530: SM Pagings Discarded on LAPD Link
2
A531: CS Pagings Discarded on LAPD Link
3
A532: PS Pagings Discarded on LAPD Link
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10.4.2 SM Pagings Discarded on LAPD Link Counter A530: SM Pagings Discarded on LAPD Link
Meaning This counter measures the number of discarded short message (SM) pagings on the LAPD.
Trigger Point This counter is measured when an SM paging is discarded on the LAPD link due to overload of the GEIUB/GOIUB overload or the LAPD link.
Formula None.
10.4.3 CS Pagings Discarded on LAPD Link Counter A531: CS Pagings Discarded on LAPD Link
Meaning This counter measures the number of discarded CS pagings on the LAPD link.
Trigger Point This counter is measured when a CS paging is discarded on the LAPD link due to overload of the GEIUB/GOIUB or the LAPD link.
Formula None.
10.4.4 PS Pagings Discarded on LAPD Link Counter A532: PS Pagings Discarded on LAPD Link
Meaning This counter measures the number of discarded PS pagings on the LAPD link.
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Trigger Point This counter is measured when a PS paging is discarded on the LAPD link due to overload of the GEIUB/GOIUB or the LAPD link.
Formula None.
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11
Call Measurement
About This Chapter The following table lists the sections of this chapter. Section
Describes
11.1 Overview of Call Measurement
Introduces the call measurement and its measurement units.
11.2 Call Duration Measurement per BSC
Describes Call Duration Measurement per BSC and its counters.
11.3 Flow Control Measurement per Cell
Describes Flow Control Measurement per Cell and its counters.
11.4 Short Message Measurement per Cell
Describes Short Message Measurement per Cell and its counters.
11.5 Call Drop Measurement per Cell
Describes Call Drop Measurement per Cell and its counters.
11.6 Channel Activation Measurement per Cell
Describes Channel Activation Measurement per Cell and its counters.
11.7 Channel Seizure Measurement per TRX
Describes Channel Seizure Measurement per TRX and its counters.
11.8 Immediate Assignment Measurement per Cell
Describes Immediate Assignment Measurement per Cell and its counters.
11.9 Assignment Measurement per Cell
Describes Assignment Measurement per Cell and its counters.
11.10 Intra-Cell Handover Measurement per Cell
Describes Intra-Cell Handover Measurement per Cell and its counters.
11.11 Incoming Internal InterCell Handover Measurement per Cell
Describes Incoming Internal Inter-Cell Handover Measurement per Cell and its counters.
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Section
Describes
11.12 Outgoing Internal InterCell Handover Measurement per Cell
Describes Outgoing Internal Inter-Cell Handover Measurement per Cell and its counters.
11.13 Incoming External InterCell Handover Measurement per Cell
Describes Incoming External Inter-Cell Handover Measurement per Cell and its counters.
11.14 Outgoing External InterCell Handover Measurement per Cell
Describes Outgoing External Inter-Cell Handover Measurement per Cell and its counters.
11.15 Incoming Inter-RAT Inter-Cell Handover Measurement per Cell
Describes Incoming Inter-RAT Inter-Cell Handover Measurement per Cell and its counters.
11.16 Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell
Describes Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell and its counters.
11.17 GSM Cell to GSM Cell Incoming Handover Measurement
Describes GSM Cell to GSM Cell Incoming Handover Measurement and its counters.
11.18 GSM Cell to GSM Cell Outgoing Handover Measurement
Describes GSM Cell to GSM Cell Outgoing Handover Measurement and its counters.
11.19 Measurement of MRs upon Handover Initiation per Cell
Describes Measurement of MRs upon Handover Initiation per Cell and its counters.
11.20 KPI Measurement per Cell
Describes KPI Measurement per Cell and its counters.
11.21 Calls Discarded due to Overload per LAPD
Describes Calls Discarded due to Overload per LAPD and its counters.
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11.1 Overview of Call Measurement Call measurement refers to the measurement of the call services in the BSC. Table 11-1 lists the measurement units of call measurement. Table 11-1 Measurement units of call measurement Measurement Unit
Section
Call Duration Measurement per BSC
11.2
Flow Control Measurement per Cell
11.3
Short Message Measurement per Cell
11.4
Call Drop Measurement per Cell
11.5
Channel Activation Measurement per Cell
11.6
Channel Seizure Measurement per TRX
11.7
Immediate Assignment Measurement per Cell
11.8
Assignment Measurement per Cell
11.9
Intra-Cell Handover Measurement per Cell
11.10
Incoming Internal Inter-Cell Handover Measurement per Cell
11.11
Outgoing Internal Inter-Cell Handover Measurement per Cell
11.12
Incoming External Inter-Cell Handover Measurement per Cell
11.13
Outgoing External Inter-Cell Handover Measurement per Cell
11.14
Incoming Inter-RAT Inter-Cell Handover Measurement per Cell
11.15
Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell
11.16
GSM Cell to GSM Cell Incoming Handover Measurement
11.17
GSM Cell to GSM Cell Outgoing Handover Measurement
11.18
Measurement of MRs upon Handover Initiation per Cell
11.19
KPI Measurement per Cell
11.20
Calls Discarded due to Overload per LAPD
11.21
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11.2 Call Duration Measurement per BSC 11.2.1 Overview Call Duration Measurement per BSC is used to measure the access duration and establishment duration of all the calls in the BSC. Table 11-2 lists the counters of Call Duration Measurement per BSC. Table 11-2 Counters of Call Duration Measurement per BSC Number
Counter
1
AA032: Mean Duration of Call Access
2
AA033: Mean Duration of Call Establishment
11.2.2 Mean Duration of Call Access Counter AA032: Mean Duration of Call Access
Meaning This counter measures the mean duration of call access in a Granularity Period (GP).
Trigger Point None.
Formula Mean Duration of Call Access = [Total Duration of Call Access]/[Sampled Duration of Call Access]
GP unit: 100 milliseconds
11.2.3 Mean Duration of Call Establishment Counter AA033: Mean Duration of Call Establishment
Meaning This counter measures the mean duration of call establishment in a GP.
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Trigger Point None.
Formula Mean Duration of Call Establishment = [Total Duration of Call Establishment]/[Sampled Duration of Call Establishment]
GP unit: 100 milliseconds
11.3 Flow Control Measurement per Cell 11.3.1 Overview Flow Control Measurement per Cell is used to measure the resource utilization of a cell or a BTS. Table 11-3 lists the counters of Flow Control Measurement per Cell. Table 11-3 Counters of Flow Control Measurement per Cell Number
Counter
1
L3188A: MSG DEL IND Messages Sent on Abis Interface
2
L3188B: MSG CCCH LOAD IND (RACH) Messages Sent on Abis Interface
3
L3188C: MSG CCCH LOAD IND (PCH) Messages Sent on Abis Interface
4
L3188D: PACKET CCCH LOAD IND Messages Sent on Abis Interface
5
L3188E: MSG ABIS OVERLOAD (CCCH OVERLOAD) Messages Sent on Abis Interface
6
L3188F: MSG ABIS OVERLOAD (PROCESSOR OVERLOAD) Messages Sent on Abis Interface
7
L3188G: LOAD IND Messages Sent on the A-Interface
8
L3188H: Increases of Flow Control Levels
9
L3188I: Decreases of Flow Control Levels
10
L3188J: Ignored Trigger Events
11
L3188K: Highest Level Delays
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11.3.2 MSG DEL IND Messages Sent on Abis Interface Counter L3188A: MSG DEL IND Messages Sent on Abis Interface
Meaning When an IMM ASS CMD message is deleted because of downlink CCCH overload in a cell, the BTS sends an MSG DEL IND message. This counter measures the number of times the BTS sends the MSG DEL IND messages about a cell in a GP.
Trigger Point The measurement is triggered when the BSC receives an MSG DEL IND message from the BTS.
Formula None.
11.3.3 MSG CCCH LOAD IND (RACH) Messages Sent on Abis Interface Counter L3188B: MSG CCCH LOAD IND (RACH) Messages Sent on Abis Interface
Meaning When the uplink CCCH (RACH) in a cell is overloaded, the BTS sends an MSG CCCH LOAD IND (RACH) message to the BSC. Huawei BSS does not support the RACH overload of packet services. The RACH overload caused by the calls of packet services is also regarded as the RACH overload of circuit services.
Trigger Point The measurement is triggered when the BSC receives an MSG CCCH LOAD IND (RACH) message from the BTS. The cause carried in this message is uplink CCCH (RACH) overload.
Formula None.
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11.3.4 MSG CCCH LOAD IND (PCH) Messages Sent on Abis Interface Counter L3188C: MSG CCCH LOAD IND (PCH) Messages Sent on Abis Interface
Meaning The BTS saves the downlink CCCH (PCH) messages received from the BSC and the PCU into different receive buffer queues. When the length of the queue exceeds the specified threshold, the downlink CCCH is overloaded. The BTS can report overload to the BSC and identify whether the overload is caused by excessive downlink packet services or by excessive downlink circuit services. If the overload is caused by excessive downlink circuit services, the BTS sends a CCCH LOAD IND message to the BSC and the BSC forwards it to the PCU.
Trigger Point The measurement is triggered when the BSC receives from the BTS an MSG CCCH LOAD IND (PCH) message. The cause carried in this message is downlink CCCH (PCH) overload of circuit services.
Formula None.
11.3.5 PACKET CCCH LOAD IND Messages Sent on Abis Interface Counter L3188D: PACKET CCCH LOAD IND Messages Sent on Abis Interface
Meaning This counter measures the number of times the BSC receives a PACKET CCCH LOAD IND message from a cell in a GP, that is, the number of times the BTS receives from the BSC and PCU a downlink CCCH (PCH) message. When the CCCH of packet services is overloaded, the BTS sends a PACKET CCCH LOAD IND message to the BSC and the BSC forwards it to the PCU.
Trigger Point The measurement is triggered when the BSC receives a PACKET CCCH LOAD IND message from the BTS.
Formula None.
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11.3.6 MSG ABIS OVERLOAD (CCCH OVERLOAD) Messages Sent on Abis Interface Counter L3188E: MSG ABIS OVERLOAD (CCCH OVERLOAD) Messages Sent on Abis Interface
Meaning This counter measures the number of times the BSC receives an MSG ABIS OVERLOAD (CCCH OVERLOAD) message from a cell in a GP. When the BTS sends an MSG ABIS OVERLOAD (CCCH OVERLOAD) message to the BSC, it also sends the BSC a CCCH LOAD INDICATION message. TRX overload reports (CCCH overload) = CCCH load reports (RACH overload) + CCCH load reports (PCH overload) (circuit service and packet service). In actual situations, this equation may not exist due to bit errors.
Trigger Point The measurement is triggered when the BSC receives an MSG ABIS OVERLOAD (CCCH OVERLOAD) message from the BTS.
Formula None.
11.3.7 MSG ABIS OVERLOAD (PROCESSOR OVERLOAD) Messages Sent on Abis Interface Counter L3188F: MSG ABIS OVERLOAD (PROCESSOR OVERLOAD) Messages Sent on Abis Interface
Meaning This counter measures the number of times the BSC receives an MSG ABIS OVERLOAD (PROCESSOR OVERLOAD) message from a cell in a GP. Processor overload means that the CPU load of the TRX processor in a cell exceeds the threshold. This counter is not directly related to CCCH overload.
Trigger Point The measurement is triggered when the BSC receives an MSG ABIS OVERLOAD (PROCESSOR OVERLOAD) message from the BTS.
Formula None.
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11.3.8 LOAD IND Messages Sent on the A-Interface Counter L3188G: LOAD IND Messages Sent on the A-Interface
Meaning If a cell has no TCHs available but the cell has external neighbor cells, the BSC sends the MSC a LOAD IND message to avoid the handover of the call from the external neighbor cell to this cell. The MSC then forwards this message to the BSS where the external neighbor cell is located. Therefore, the BSS will not select congested cells as candidate cells for handovers. The BSC checks the number of idle TCHs every five seconds.
Trigger Point The measurement is triggered when the BSC sends a LOAD IND message to the MSC.
Formula None.
11.3.9 Increases of Flow Control Levels Counter L3188H: Increases of Flow Control Levels
Meaning Cell flow control is performed through double timers. When a trigger event occurs, the event is ignored if T1 is running. If T1 is not running, the flow control level increases by one unless the flow control has already reached the highest level. T1 and T2 (T2 > T1) are triggered. If T2 expires, the flow control level decreases by one. If the flow control level is not zero after the decrease, T2 is triggered again. This counter measures the number of times the trigger event occurs when T1 stops and the flow control has not reached the highest level.
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The description of the double timers is as follows: When the event that can trigger AGCH flow control occurs, the cell flow control timer is triggered if neither T1 nor T2 is running. The timer length is T1. The status of the timer is changed to T1 running. z
If the flow control does not reach the highest level (level 5), the AGCH flow control level increases by one and the number of times the flow control level increases is measured.
z
If the flow control level has reached the highest level, the Highest Level Delays counter is measured.
If the flow control timer is in T1 running status, the event is ignored and the times the trigger event is ignored is measured. If the flow control timer in T1 running status expires, the timer is triggered again and the timer length is T2-T1. The status of the flow control timer is changed to T1 stopped and T2 running status. In T1 stopped and T2 running status, if the event that can trigger AGCH flow control occurs, the cell flow control timer is triggered again. The timer length is T1. The status of the flow control timer is changed to T1 running. If the timer expires, the flow control level decreases by one and the number of times the flow control level decreases is measured. z
If the flow control level is not zero after the decrease, the cell flow control timer is triggered again. The timer length is T2. The status of the flow control timer remains the same.
z
If the flow control level becomes zero after the decrease, the status of the flow control timer is changed to T1 and T2 stopped.
Trigger Point The BSC detects that all the SDCCHs are busy when sending an IMM ASS REJ message. The measurement is triggered if T1 stops and the flow control has not reached the highest level.
Formula None.
11.3.10 Decreases of Flow Control Levels Counter L3188I: Decreases of Flow Control Levels
Meaning Cell flow control is performed through double timers. When a trigger event occurs, the event is ignored if T1 is running. If T1 is not running, the flow control level increases by one unless the flow control has already reached the highest level. T1 and T2 (T2 > T1) are triggered. If T2 expires, the flow control level decreases by one. If the flow control level is not zero after the decrease, T2 is triggered again. The number of the times the flow control level decreases is the number of the times T2 expires. This counter measures the number of times the flow control level decreases.
Trigger Point The measurement is triggered when T2 expires.
Formula None.
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11.3.11 Ignored Trigger Events Counter L3188J: Ignored Trigger Events
Meaning Cell flow control is performed through double timers. When a trigger event occurs, the event is ignored if T1 is running. If T1 is not running, the flow control level increases by one unless the flow control has already reached the highest level. T1 and T2 (T2 > T1) are triggered. If T2 expires, the flow control level decreases by one. If the flow control level is not zero after the decrease, T2 is triggered again. This counter measures the number of times trigger events occur when T1 is running.
Trigger Point The measurement is triggered when T1 is running.
Formula None.
11.3.12 Highest Level Delays Counter L3188K: Highest Level Delays
Meaning Cell flow control is performed through double timers. When a trigger event occurs, the event is ignored if T1 is running. If T1 is not running, the flow control level increases by one unless the flow control has already reached the highest level. T1 and T2 (T2 > T1) are triggered. If T2 expires, the flow control level decreases by one. If the flow control level is not zero after the decrease, T2 is triggered again. This counter measures the number of times the trigger event occurs when T2 is running and the flow control has reached the highest level.
Trigger Point The BSC detects that all the SDCCHs are busy when sending an IMM ASS REJ message. The measurement is triggered if the flow control has reached the highest level.
Formula None.
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11.4 Short Message Measurement per Cell 11.4.1 Overview Short Message Measurement per Cell is used to measure the transmission and reception of short messages in a cell. Table 11-4 lists the counters of Short Message Measurement per Cell. Table 11-4 Counters of Short Message Measurement per Cell Number
Counter
1
A3340A: Uplink Point-to-Point Short Messages on SDCCH
2
A3340B: Downlink Point-to-Point Short Messages on SDCCH
3
A3349A: Uplink Point-to-Point Short Messages on TCH
4
A3349B: Downlink Point-to-Point Short Messages on TCH
5
CA334A: Total Uplink Point-to-Point Short Messages
6
CA334B: Total Downlink Point-to-Point Short Messages
7
CA3340: Point-to-Point Short Messages on SDCCH
8
CA3349: Point-to-Point Short Messages on TCH
11.4.2 Uplink Point-to-Point Short Messages on SDCCH Counter A3340A: Uplink Point-to-Point Short Messages on SDCCH
Meaning This counter measures the number of uplink point-to-point short messages on the SDCCH. Uplink short messages are sent from the MS to the BSC.
Trigger Point The measurement is triggered when the BSC receives an uplink point-to-point short message on the SDCCH.
Formula None.
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11.4.3 Downlink Point-to-Point Short Messages on SDCCH Counter A3340B: Downlink Point-to-Point Short Messages on SDCCH
Meaning This counter measures the number of downlink point-to-point short messages on the SDCCH. Downlink short messages are sent from the BSC to the MS.
Trigger Point The measurement is triggered when the BSC sends a downlink point-to-point short message on the SDCCH.
Formula None.
11.4.4 Uplink Point-to-Point Short Messages on TCH Counter A3349A: Uplink Point-to-Point Short Messages on TCH
Meaning This counter measures the number of uplink point-to-point short messages on the TCH.
Trigger Point The measurement is triggered when the BSC receives an uplink point-to-point short message on the TCH.
Formula None.
11.4.5 Downlink Point-to-Point Short Messages on TCH Counter A3349B: Downlink Point-to-Point Short Messages on TCH
Meaning This counter measures the number of downlink point-to-point short messages on the TCH.
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Trigger Point The measurement is triggered when the BSC sends a downlink point-to-point short message on the TCH.
Formula None.
11.4.6 Total Uplink Point-to-Point Short Messages Counter CA334A: Total Uplink Point-to-Point Short Messages
Meaning This counter measures the total number of uplink point-to-point short messages.
Trigger Point None.
Formula Total Uplink Point-to-Point Short Messages = [Uplink Point-to-Point Short Messages on SDCCH] + [Uplink Point-to-Point Short Messages on TCH]
11.4.7 Total Downlink Point-to-Point Short Messages Counter CA334B: Total Downlink Point-to-Point Short Messages
Meaning This counter measures the total number of downlink point-to-point short messages.
Trigger Point None.
Formula Downlink Point-to-Point Short Messages = [Downlink Point-to-Point Short Messages on SDCCH] + [Downlink Point-to-Point Short Messages on TCH]
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11.4.8 Point-to-Point Short Messages on SDCCH Counter CA3340: Point-to-Point Short Messages on SDCCH
Meaning This counter measures the number of point-to-point short messages on the SDCCH.
Trigger Point None.
Formula Point-to-Point Short Messages on SDCCH = [Uplink Point-to-Point Short Messages on SDCCH] + [Downlink Point-to-Point Short Messages on SDCCH]
11.4.9 Point-to-Point Short Messages on TCH Counter CA3349: Point-to-Point Short Messages on TCH
Meaning This counter measures the number of point-to-point short messages on the TCH.
Trigger Point None.
Formula Point-to-Point Short Messages on TCH = [Uplink Point-to-Point Short Messages on TCH] + [Downlink Point-to-Point Short Messages on TCH]
11.5 Call Drop Measurement per Cell 11.5.1 Overview Call Drop Measurement per Cell is used to measure the call drops based on the causes, channel types, service types, and call status of the call drops.
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Table 11-5 lists the counter classification of Call Drop Measurement per Cell. Table 11-5 Counter classification of Call Drop Measurement per Cell Counter Classification
Section
Call Drop Sampled Measurement per Cell
11.5.2
Call Drop Analyzed Measurement per Cell
11.5.3
11.5.2 Call Drop Sampled Measurement per Cell Counter Table 11-6 lists the counters of Call Drop Sampled Measurement per Cell. Table 11-6 Counters of Call Drop Sampled Measurement per Cell
11-16
Number
Counter
1
M3000A: Call Drops due to ERR IND Received on SDCCH in Stable State (T200 Expired)
2
M3000B: Call Drops due to ERR IND Received on SDCCH in Stable State (Unsolicited DM Response)
3
M3000C: Call Drops due to ERR IND Received on SDCCH in Stable State (Sequence Error)
4
M3400A: Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (T200 Expired)
5
M3400B: Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (Unsolicited DM Response)
6
M3400C: Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (Sequence Error)
7
M3500A: Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (T200 Expired)
8
M3500B: Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (Unsolicited DM Response)
9
M3500C: Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (Sequence Error)
10
M3100A: Call Drops due to ERR IND Received on TCHF (Traffic Channel) in Stable State (T200 Expired)
11
M3100B: Call Drops due to ERR IND Received on TCHF (Traffic Channel) in Stable State (Unsolicited DM Response)
12
M3100C: Call Drops due to ERR IND Received on TCHF (Traffic Channel) in Stable State (Sequence Error)
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Number
Counter
13
M3200A: Call Drops due to ERR IND Received on TCHH (Traffic Channel) in Stable State (T200 Expired)
14
M3200B: Call Drops due to ERR IND Received on TCHH (Traffic Channel) in Stable State (Unsolicited DM Response)
15
M3200C: Call Drops due to ERR IND Received on TCHH (Traffic Channel) in Stable State (Sequence Error)
16
M3001A: Call Drops due to ERR IND Received on SDCCH in Stable State (Radio Link Failure)
17
M3001B: Call Drops due to ERR IND Received on SDCCH in Stable State (HO Access Failure)
18
M3001C: Call Drops due to ERR IND Received on SDCCH in Stable State (OM Intervention)
19
M3001D: Call Drops due to ERR IND Received on SDCCH in Stable State (Radio Resource Unavailable)
20
M3001E: Call Drops due to ERR IND Received on SDCCH in Stable State (Other Causes)
21
M3401A: Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (Radio Link Failure)
22
M3401B: Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (HO Access Failure)
23
M3401C: Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (OM Intervention)
24
M3401D: Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (Radio Resource Unavailable)
25
M3401E: Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (Other Causes)
26
M3501A: Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (Radio Link Failure)
27
M3501B: Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (HO Access Failure)
28
M3501C: Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (OM Intervention)
29
M3501D: Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (Radio Resource Unavailable)
30
M3501E: Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (Other Causes)
31
M3101A: Call Drops due to ERR IND Received on TCHF (Traffic Channel) in Stable State (Radio Link Failure)
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Number
Counter
32
M3101B: Call Drops due to ERR IND Received on TCHF (Traffic Channel) in Stable State (HO Access Failure)
33
M3101C: Call Drops due to ERR IND Received on TCHF (Traffic Channel) in Stable State (OM Intervention)
34
M3101D: Call Drops due to ERR IND Received on TCHF (Traffic Channel) in Stable State (Radio Resource Unavailable)
35
M3101E: Call Drops due to ERR IND Received on TCHF (TCH) in Stable State (Other Causes)
36
M3201A: Call Drops due to ERR IND Received on TCHH (TCH) in Stable State (Radio Link Failure)
37
M3201B: Call Drops due to ERR IND Received on TCHH (TCH) in Stable State (HO Access Failure)
38
M3201C: Call Drops due to ERR IND Received on TCHH (TCH) in Stable State (OM Intervention)
39
M3201D: Call Drops due to ERR IND Received on TCHH (TCH) in Stable State (Radio Resource Unavailable)
40
M3201E: Call Drops due to ERR IND Received on TCHH (TCH) in Stable State (Other Causes)
41
M3002: Call Drops due to REL IND Received on SDCCH
42
M3402: Call Drops due to REL IND Received on TCHF (Signaling Channel)
43
M3102: Call Drops due to REL IND Received on TCHF (TCH)
44
M3502: Call Drops due to REL IND Received on TCHH (Signaling Channel)
45
M3202: Call Drops due to REL IND Received on TCHH (TCH)
46
M302: Call Drops due to No MRs from MS for a Long Time (SDCCH)
47
M342: Call Drops due to No MRs from MS for a Long Time (TCHF) (Signaling Channel)
48
M312: Call Drops due to No MRs from MS for a Long Time (TCHF) (TCH)
49
M352: Call Drops due to No MRs from MS for a Long Time (TCHH) (Signaling Channel)
50
M322: Call Drops due to No MRs from MS for a Long Time (TCHH) (TCH)
51
M303: Call Drops due to Abis Terrestrial Link Failure (SDCCH)
52
M343: Call Drops due to Abis Terrestrial Link Failure (TCHF) (Signaling Channel)
53
M313: Call Drops due to Abis Terrestrial Link Failure (TCHF) (TCH)
54
M353: Call Drops due to Abis Terrestrial Link Failure (TCHH) (Signaling Channel)
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Number
Counter
55
M323: Call Drops due to Abis Terrestrial Link Failure (TCHH) (TCH)
56
M304: Call Drops due to Equipment Failure (SDCCH)
57
M344: Call Drops due to Equipment Failure (TCHF) (Signaling Channel)
58
M314: Call Drops due to Equipment Failure (TCHF) (TCH)
59
M354: Call Drops due to Equipment Failure (TCHH) (Signaling Channel)
60
M324: Call Drops due to Equipment Failure (TCHH) (TCH)
61
M305: Call Drops due to Forced Handover (SDCCH)
62
M345: Call Drops due to Forced Handover (TCHF) (Signaling Channel)
63
M315: Call Drops due to Forced Handover (TCHF) (TCH)
64
M355: Call Drops due to Forced Handover (TCHH) (Signaling Channel)
65
M325: Call Drops due to Forced Handover (TCHH) (TCH)
66
M306: Call Drops due to Resource Check (SDCCH)
67
M346: Call Drops due to Resource Check (TCHF) (Signaling Channel)
68
M356: Call Drops due to Resource Check (TCHH) (Signaling Channel)
69
M316: Call Drops due to Resource Check (TCHF) (TCH)
70
M326: Call Drops due to Resource Check (TCHH) (TCH)
71
M317: Call Drops after Answer (TCHF) (TCH)
72
M327: Call Drops after Answer (TCHH) (TCH)
73
M318: Successful Connections (TCHF) (TCH)
74
M328: Successful Connections (TCHH) (TCH)
75
M309: Clear Requests Sent on the A-Interface (SDCCH)
76
M349: Clear Requests Sent on the A-Interface (TCHF) (Signaling Channel)
77
M359: Clear Requests Sent on the A-Interface (TCHH) (Signaling Channel)
78
M319A: Clear Requests Sent on the A-Interface in Stable State (TCHF) (TCH)
79
M319B: Clear Requests Sent on the A-Interface in Handover State (TCHF) (TCH)
80
M329A: Clear Requests Sent on the A-Interface in Stable State (TCHH) (TCH)
81
M329B: Clear Requests Sent on the A-Interface in Handover State (TCHH) (TCH)
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Meaning After an MS occupies a channel, the BTS sends an ERR IND message to the BSC because of radio link errors. Call drops occur on the Um interface. When receiving the ERR IND message with a cause value of timer T200 expired (N200+1) times (0x01), unsolicited DM response, multiple frame established state (0x05), or sequence error (0x07) in it, the BSC measures the call drop counters related to ERR IND. The measurement is based on the channel type (SDCCH, TCHF, or TCHH), service type (signaling or traffic), and cause value. After an MS occupies a channel, the BTS sends a CONN FAIL IND message to the BSC because of radio link errors or hardware failure. Call drops occur on the Um interface. When receiving the CONN FAIL IND message with a cause value of radio link failure (0x01), handover access failure (0x02), OM intervention (0x07), or radio resource not available (0x21) in it, the BSC measures the call drop counters related to CONN FAIL IND on the basis of the channel type (SDCCH, TCHF, or TCHH), service type (signaling or traffic), and cause value. In multiframe link setup status, the BTS sends a REL IND message to the BSC after receiving the DISC frame from an MS. Call drops occur on the Um interface. The BSC measures the call drop counters related to REL IND on the basis of the channel type (SDCCH, TCHF, or TCHH), service type (signaling or traffic), and cause value. After an MS occupies an SDCCH, it sends a measurement report to the network every 470 ms. After an MS occupies a TCH, it sends a measurement report to the network every 480 ms. If the BSC does not receive any measurement report within scheduled time (five minutes by default), call drops occur on the Um interface. The BSC measures the call drop counters related to no measurement reports based on the channel type (SDCCH, TCHF, or TCHH) and the service type (signaling or traffic). After an MS occupies a channel, the BTS sends a CONN FAIL IND message to the BSC because of radio link connection failure. Call drops occur on the Um interface. When receiving the CONN FAIL IND message with a cause equipment failure (0x20) or terrestrial channel failure (0x22), the BSC measures the call drop counters related to hardware failure on the basis of the channel type (SDCCH, TCHF, or TCHH), service type (signaling or traffic), and cause value. After an MS occupies a channel, the BSC measures the call drop counters related to equipment failure on the basis of the channel type (SDCCH, TCHF, or TCHH) and the service type (signaling or traffic) if a release procedure is initiated because of BSC internal errors. After an MS occupies a channel, a forced handover is initiated but failed. If the release procedure is required, the BSC measures the call drop counters related to the forced handover based on the channel type (SDCCH, TCHF, or TCHH) and the service type (signaling or traffic). After an MS occupies a channel, a release procedure is initiated if the resource check fails. The BSC measures the call drop counters related to the resource check based on the channel type (SDCCH, TCHF, or TCHH) and the service type (signaling or traffic). After a call is established, a conversation begins if the called party answers. If a call drop occurs for a certain reason, the BSC measures the related call drop counters after a conversation begins based on the channel type (TCHF or TCHH). After a call is established, the BSC receives the CONN message from the called MS and the CONN ACK message from the calling MS if the called party answers. The BSC measures the counters related to successful connections based on the channel type (TCHF or TCHH). After an MS occupies a channel, the BSC measures the counters related to clear requests sent on the A interface on the basis of the channel type (SDCCH, TCHF, or TCHH), service type
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(signaling or traffic), or status (stable or HO) when the BSC sends a CLR REQ message to the MSC.
Trigger Point The measurement of call drops is triggered when a call drop occurs. The measurement of successful connections is triggered when the called party answers.
Formula None.
11.5.3 Call Drop Analyzed Measurement per Cell Counter Table 11-7 lists the counters of Call Drop Analyzed Measurement per Cell. Table 11-7 Counters of Call Drop Analyzed Measurement per Cell Number
Counter
1
CM33: Call Drops on TCH
2
CM360: Call Drops on Radio Interface in Stable State (Signaling Channel)
3
CM361: Call Drops on Radio Interface in Handover State (Signaling Channel)
4
CM36: Call Drops on Signaling Channel
5
CM330: Call Drops on Radio Interface in Stable State (TCH)
6
CM331: Call Drops on Radio Interface in Handover State (TCH)
7
CM3600: Call Drops on Signaling Channel in Stable State (Error Indication)
8
CM3601: Call Drops on Signaling Channel in Stable State (Connection Failure)
9
CM3602: Call Drops on Signaling Channel in Stable State (Release Indication)
10
CM36C: Call Drops on Radio Interface (Signaling Channel)
11
CM362: Call Drops due to No MRs from MS for a Long Time (Signaling Channel)
12
CM363: Call Drops due to Abis Terrestrial Link Failure (Signaling Channel)
13
CM364: Call Drops due to Equipment Failure (Signaling Channel)
14
CM365: Call Drops due to Forced Handover (Signaling Channel)
15
CM33C: Call Drops on Radio Interface (TCH)
16
CM3301: Call Drops on TCH in Stable State (Connection Failure)
17
CM3300: Call Drops on TCH in Stable State (Error Indication)
18
CM3302: Call Drops on TCH in Stable State (Release Indication)
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Number
Counter
19
CM332: Call Drops due to No MRs from MS for a Long Time (TCH)
20
CM333: Call Drops due to Abis Terrestrial Link Failure (TCH)
21
CM334: Call Drops due to Equipment Failure (TCH)
22
CM335: Call Drops due to Forced Handover (TCH)
23
CM30: Call Drops on SDCCH
24
CM30A: Call Drops on Radio Interface (SDCCH)
25
CM396: Call Drops due to Resource Check
26
CM337: Call Drops after Answer
27
CM338: Successful Connections
28
CM369: Clear Requests Sent on the A Interface (TCH) (Signaling Channel)
29
CM339A: Clear Requests Sent on the A Interface in Stable State (TCH) (Traffic Channel)
30
CM339B: Clear Requests Sent on the A Interface in Handover State (TCH) (Traffic Channel)
31
CM339: Clear Requests Sent on the A Interface (TCH) (Traffic Channel)
Meaning None.
Trigger Point None.
Formula Call Drops on TCH = [Call Drops on Radio Interface in Stable State (TCH)] + [Call Drops on Radio Interface in Handover State (TCH)] + [Call Drops due to No MRs from MS for a Long Time (TCH)] + [Call Drops due to Abis Terrestrial Link Failure (TCH)] + [Call Drops due to Equipment Failure (TCH)] + [Call Drops due to Forced Handover (TCH)]
Call Drops on Radio Interface in Stable State (Signaling Channel) = [Call Drops on Signaling Channel in Stable State (Error Indication)] +
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[Call Drops on Signaling Channel in Stable State (Connection Failure)] + [Call Drops on Signaling Channel in Stable State (Release Indication)]
Call Drops on Radio Interface in Handover State (Signaling Channel) = [Failed Internal Intra-Cell Handovers (Timer Expired) (SDCCH)] + [Failed Internal Intra-Cell Handovers (Timer Expired) (TCHF) (Signaling Channel)] + [Failed Internal Intra-Cell Handovers (Timer Expired) (TCHH) (Signaling Channel)] + [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (SDCCH) (Excluding Directed Retry)] + [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (Directed Retry)] + [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (TCHF) (Signaling Channel)] + [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (TCHH) (Signaling Channel)] + [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (SDCCH) (Excluding Directed Retry)] + [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (Directed Retry)] + [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (TCHF) (Signaling Channel)] + [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (TCHH) (Signaling Channel)] + [Failed Incoming External Inter-Cell Handovers (Timer Expired) (SDCCH)] + [Failed Incoming External Inter-Cell Handovers (Timer Expired) (TCH) (Signaling Channel)]
Call Drops on Signaling Channel = [Call Drops on Radio Interface in Stable State (Signaling Channel)] + [Call Drops on Radio Interface in Handover State (Signaling Channel)] + [Call Drops due to No MRs from MS for a Long Time (Signaling Channel)] + [Call Drops due to Abis Terrestrial Link Failure (Signaling Channel)] + [Call Drops due to Equipment Failure (Signaling Channel)] + [Call Drops due to Forced Handover (Signaling Channel)]
Call Drops on Radio Interface in Stable State (TCH) = [Call Drops on TCH in Stable State (Error Indication)] + [Call Drops on TCH in Stable State (Connection Failure)] + [Call Drops on TCH in Stable State (Release Indication)]
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Call Drops on Radio Interface in Handover State (TCH) = [Failed Internal Intra-Cell Handovers (Timer Expired) (TCHF) (Traffic Channel)] + [Failed Internal Intra-Cell Handovers (Timer Expired) (TCHH) (Traffic Channel)] + [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (TCHF) (Traffic Channel)] + [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (TCHH) (Traffic Channel)] + [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (TCHF) (Traffic Channel)] + [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (TCHH) (Traffic Channel)] + [Failed Incoming External Inter-Cell Handovers (Timer Expired) (TCH) (Traffic Channel)]
Call Drops on Signaling Channel in Stable State (Error Indication) = [Call Drops due to ERR IND Received on SDCCH in Stable State (T200 Expired)] + [Call Drops due to ERR IND Received on SDCCH in Stable State (Unsolicited DM Response)] + [Call Drops due to ERR IND Received on SDCCH in Stable State (Sequence Error)] + [Call Drops due to ERR IND Received on TCHF in Stable State (T200 Expired) (Signaling Channel)] + [Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (Unsolicited DM Response)] + [Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (Sequence Error)] + [Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (T200 Expired)] + [Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (Unsolicited DM Response)] + [Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (Sequence Error)]
Call Drops on Signaling Channel in Stable State (Connection Failure) = [Call Drops due to ERR IND Received on SDCCH in Stable State (Radio Link Failure)] + [Call Drops due to ERR IND Received on SDCCH in Stable State (HO Access Failure)] + [Call Drops due to ERR IND Received on SDCCH in Stable State (OM Intervention)] + [Call Drops due to ERR IND Received on SDCCH in Stable State (Radio Resource Unavailable)] + [Call Drops due to ERR IND Received on SDCCH in Stable State (Other Causes)] + [Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (Radio Link Failure)] +
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[Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (HO Access Failure)] + [Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (OM Intervention)] + [Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (Radio Resource Unavailable) in Stable State (OM Intervention)] + [Call Drops due to ERR IND Received on TCHF (Signaling Channel) in Stable State (Other Causes)] + [Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (Radio Link Failure)] + [Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (HO Access Failure)] + [Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (OM Intervention)] + [Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (Radio Resource Unavailable)] + [Call Drops due to ERR IND Received on TCHH (Signaling Channel) in Stable State (Other Causes)]
Call Drops on Signaling Channel in Stable State (Release Indication) = [Call Drops due to REL IND Received on SDCCH] + [Call Drops due to REL IND Received on TCHF (Signaling Channel)] + [Call Drops due to REL IND Received on TCHH (Signaling Channel)]
Call Drops on Radio Interface (Signaling Channel) = [Call Drops on Radio Interface in Stable State (Signaling Channel)] + [Call Drops on Radio Interface in Handover State (Signaling Channel)]
Call Drops due to No MRs from MS for a Long Time (Signaling Channel) = [Call Drops due to No MRs from MS for a Long Time (SDCCH)] + [Call Drops due to No MRs from MS for a Long Time (TCHF) (Signaling Channel)] + [Call Drops due to No MRs from MS for a Long Time (TCHH) (Signaling Channel)]
Call Drops due to Abis Terrestrial Link Failure (Signaling Channel) = [Call Drops due to Abis Terrestrial Link Failure (SDCCH)] + [Call Drops due to Abis Terrestrial Link Failure (TCHF) (Signaling Channel)] + [Call Drops due to Abis Terrestrial Link Failure (TCHH) (Signaling Channel)]
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Call Drops due to Equipment Failure (Signaling Channel) = [Call Drops due to Equipment Failure (SDCCH)] + [Call Drops due to Equipment Failure (TCHF) (Signaling Channel)] + [Call Drops due to Equipment Failure (TCHH) (Signaling Channel)]
Call Drops due to Forced Handover (Signaling Channel) = [Call Drops due to Forced Handover (SDCCH)] + [Call Drops due to Forced Handover (TCHF) (Signaling Channel)] + [Call Drops due to Forced Handover (TCHH) (Signaling Channel)]
Call Drops on Radio Interface (TCH) = [Call Drops on Radio Interface in Stable State (TCH)] + [Call Drops on Radio Interface in Handover State (TCH)] +
Call Drops on TCH in Stable State (Connection Failure) = [Call Drops due to ERR IND Received on TCHF (TCH) in Stable State (Radio Link Failure)] + [Call Drops due to ERR IND Received on TCHF (TCH) in Stable State (HO Access Failure)] + [Call Drops due to ERR IND Received on TCHF (TCH) in Stable State (OM Intervention)] + [Call Drops due to ERR IND Received on TCHF (TCH) in Stable State (Radio Resource Unavailable)] + [Call Drops due to ERR IND Received on TCHF (TCH) in Stable State (Other Causes)] + [Call Drops due to ERR IND Received on TCHH (TCH) in Stable State (Radio Link Failure)] + [Call Drops due to ERR IND Received on TCHH (TCH) in Stable State (HO Access Failure)] + [Call Drops due to ERR IND Received on TCHH (TCH) in Stable State (OM Intervention)] + [Call Drops due to ERR IND Received on TCHH (TCH) in Stable State (Radio Resource Unavailable)] + [Call Drops due to ERR IND Received on TCHH (TCH) in Stable State (Other Causes)]
Call Drops on TCH in Stable State (Error Indication) = [Call Drops due to ERR IND Received on TCHF (TCH) in Stable State (T200 Expired)] + [Call Drops due to ERR IND Received on TCHF (TCH) in Stable State (Unsolicited DM Response)] +
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[Call Drops due to ERR IND Received on TCHF (TCH) in Stable State (Sequence Error)] + [Call Drops due to ERR IND Received on TCHH (TCH) in Stable State (T200 Expired)] + [Call Drops due to ERR IND Received on TCHH (TCH) in Stable State (Unsolicited DM Response)] + [Call Drops due to ERR IND Received on TCHH (TCH) in Stable State (Sequence Error)]
Call Drops on TCH in Stable State (Release Indication) = [Call Drops due to REL IND Received on TCHF (TCH)] + [Call Drops due to REL IND Received on TCHH (TCH)]
Call Drops due to No MRs from MS for a Long Time (TCH) = [Call Drops due to No MRs from MS for a Long Time (TCHF) (TCH)] + [Call Drops due to No MRs from MS for a Long Time (TCHH) (TCH)]
Call Drops due to Abis Terrestrial Link Failure (TCH) = [Call Drops due to Abis Terrestrial Link Failure (TCHF) (TCH)] + [Call Drops due to Abis Terrestrial Link Failure (TCHH) (TCH)]
Call Drops due to Equipment Failure (TCH) = [Call Drops due to Equipment Failure (TCHF) (TCH)] + [Call Drops due to Equipment Failure (TCHH) (TCH)]
Call Drops due to Forced Handover (TCH) = [Call Drops due to Forced Handover (TCHF) (TCH)] + [Call Drops due to Forced Handover (TCHH) (TCH)]
Call Drops on SDCCH = [Call Drops on Radio Interface (SDCCH)] + [Call Drops due to No MRs from MS for a Long Time (SDCCH)] + [Call Drops due to Abis Terrestrial Link Failure (SDCCH)] + [Call Drops due to Equipment Failure (SDCCH)] + [Call Drops due to Forced Handover (SDCCH)]
Call Drops on Radio Interface (SDCCH) =
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[Call Drops due to ERR IND Received on SDCCH in Stable State (T200 Expired)] + [Call Drops due to ERR IND Received on SDCCH in Stable State (Unsolicited DM Response)] + [Call Drops due to ERR IND Received on SDCCH in Stable State (Sequence Error)] + [Call Drops due to ERR IND Received on SDCCH in Stable State (Radio Link Failure)] + [Call Drops due to ERR IND Received on SDCCH in Stable State (HO Access Failure)] + [Call Drops due to ERR IND Received on SDCCH in Stable State (OM Intervention)] + [Call Drops due to ERR IND Received on SDCCH in Stable State (Radio Resource Unavailable)] + [Call Drops due to ERR IND Received on SDCCH in Stable State (Other Causes)] + [Call Drops due to REL IND Received on SDCCH] + [Failed Internal Intra-Cell Handovers (Timer Expired) (SDCCH)] + [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (SDCCH) (Excluding Directed Retry)] + [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (Directed Retry)] + [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (SDCCH) (Excluding Directed Retry)] + [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (Directed Retry)] + [Failed Incoming External Inter-Cell Handovers (Timer Expired) (SDCCH)]
Call Drops due to Resource Check = [Call Drops due to Resource Check (SDCCH)] + [Call Drops due to Resource Check (TCHF) (Signaling Channel)] + [Call Drops due to Resource Check (TCHH) (Signaling Channel)] + [Call Drops due to Resource Check (TCHF) (TCH)] + [Call Drops due to Resource Check (TCHH) (TCH)]
Call Drops after Answer = [Call Drops after Answer (TCHF) (TCH)] + [Call Drops after Answer (TCHH) (TCH)]
Successful Connections = [Successful Connections (TCHF) (TCH)] + [Successful Connections (TCHH) (TCH)]
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Clear Requests Sent on the A Interface (TCH) (Signaling Channel) = [Clear Requests Sent on the A-Interface (TCHF) (Signaling Channel)] + [Clear Requests Sent on the A-Interface (TCHH) (Signaling Channel)]
Clear Requests Sent on the A Interface in Stable State (TCH) (Traffic Channel) = [Clear Requests Sent on the A-Interface in Stable State (TCHF) (TCH)] + [Clear Requests Sent on the A-Interface in Stable State (TCHH) (TCH)]
Clear Requests Sent on the A Interface in Handover State (TCH) (Traffic Channel) = [Clear Requests Sent on the A-Interface in Handover State (TCHF) (TCH)] + [Clear Requests Sent on the A-Interface in Handover State (TCHH) (TCH)]
Clear Requests Sent on the A Interface (TCH) (Traffic Channel) = [Clear Requests Sent on the A-Interface in Stable State (TCH) (Traffic Channel)] + [Clear Requests Sent on the A Interface in Handover State (TCH) (Traffic Channel)]
11.6 Channel Activation Measurement per Cell 11.6.1 Overview Channel Activation Measurement per Cell is used to measure the activation of all types of channels in a cell. Table 11-8 lists the counter classification of Channel Activation Measurement per Cell. Table 11-8 Counter classification of Channel Activation Measurement per Cell Counter Classification
Section
SDCCH Connection Measurement per Cell
11.6.2
TCH Connection Measurement per Cell
11.6.3
Channel Activation Analyzed Measurement per Cell
11.6.4
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11.6.2 SDCCH Connection Measurement per Cell Counter Table 11-9 lists the counters of SDCCH Connection Measurement per Cell. Table 11-9 Counters of SDCCH Connection Measurement per Cell Number
Counter
1
R3300A: Channel Activation Attempts in Immediate Assignment Procedure (SDCCH)
2
R3300B: CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (SDCCH)
3
R3300C: Channel Activation Timeouts in Immediate Assignment Procedure (SDCCH)
4
R3330A: Channel Activation Attempts in Internal Intra-Cell Handover Procedure (SDCCH)
5
R3330B: CHAN ACTIV NACK Messages Sent by BTS in Internal Intra-Cell Handover Procedure (SDCCH)
6
R3330C: Channel Activation Timeouts in Internal Intra-Cell Handover Procedure (SDCCH)
7
R3340A: Channel Activation Attempts in Incoming Internal Inter-Cell Handover Procedure (SDCCH)
8
R3340B: CHAN ACTIV NACK Messages Sent by BTS in Incoming Internal Inter-Cell Handover Procedure (SDCCH)
9
R3340C: Channel Activation Timeouts in Incoming Internal Inter-Cell Handover Procedure (SDCCH)
10
R3350A: Channel Activation Attempts in Incoming External Inter-Cell Handover Procedure (SDCCH)
11
R3350B: CHAN ACTIV NACK Messages Sent by BTS in Incoming External Inter-Cell Handover Procedure (SDCCH)
12
R3350C: Channel Activation Timeouts in Incoming External Inter-Cell Handover Procedure (SDCCH)
Meaning After receiving a CHAN RQD message from the BTS, the BSC measures R3300A: Channel Activation Attempts in Immediate Assignment Procedure (SDCCH) in the cell where the SDCCH is located if the BSC assigns an SDCCH and sends a CHAN ACTIV message to the BTS. In the SDCCH immediate assignment procedure, the BSC sends a CHAN ACTIV message to the BTS. If the BTS returns a CHAN ACTIV NACK message, the SDCCH activation fails.
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The BSC measures R3300B: CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (SDCCH) in the cell where the SDCCH is located. In the SDCCH immediate assignment procedure, the BSC sends a CHAN ACTIV message to the BTS and triggers an internal timer. If no CHAN ACTIV ACK message is received within scheduled time (five seconds by default), the BSC measures R3300C: Channel Activation Timeouts in Immediate Assignment Procedure (SDCCH) in the cell where the SDCCH is located. When the MS is in stable state on the SDCCH, the BSC sends a CHAN ACTIV message to the BTS where the target cell is located if the BSC decides to initiate a handover based on measurement reports and if the target cell is the current cell. The BSC measures R3330A: Channel Activation Attempts in Internal Intra-Cell Handover Procedure (SDCCH) in the cell where the target SDCCH is located. In the intra-cell SDCCH handover procedure, the BSC sends a CHAN ACTIV message to the BTS. If the BTS returns a CHAN ACTIV NACK message, the SDCCH handover fails. The BSC measures R3330B: CHAN ACTIV NACK Messages Sent by BTS in Internal Intra-Cell Handover Procedure (SDCCH) in the cell where the target SDCCH is located. In the intra-cell SDCCH handover procedure, the BSC sends a CHAN ACTIV message to the BTS and triggers an internal timer. If no CHAN ACTIV ACK message is received within scheduled time (five seconds by default), the BSC measures R3330C: Channel Activation Timeouts in Internal Intra-Cell Handover Procedure (SDCCH) in the cell where the target SDCCH is located. When the MS is in stable state on the SDCCH, the BSC sends a CHAN ACTIV message to the BTS where the target cell is located if the BSC decides to initiate a handover based on measurement reports and if the target cell and the current cell are two cells in one BSC. The BSC measures R3340A: Channel Activation Attempts in Incoming Internal Inter-Cell Handover Procedure (SDCCH) in the cell where the target SDCCH is located. In the incoming internal inter-cell SDCCH handover procedure, the BSC sends a CHAN ACTIV message to the BTS. If the BTS returns a CHAN ACTIV NACK message, the SDCCH handover fails. The BSC measures R3340B: CHAN ACTIV NACK Messages Sent by BTS in Incoming Internal Inter-Cell Handover Procedure (SDCCH) in the cell where the target SDCCH is located. In the incoming internal inter-cell SDCCH handover procedure, the BSC sends a CHAN ACTIV message to the BTS and triggers an internal timer. If no CHAN ACTIV ACK message is received within scheduled time (five seconds by default), the BSC measures R3340C: Channel Activation Timeouts in Incoming Internal Inter-Cell Handover Procedure (SDCCH) in the cell where the target SDCCH is located. After receiving an HO REQ message from the MSC, the BSC measures R3350A: Channel Activation Attempts in Incoming External Inter-Cell Handover Procedure (SDCCH) in the cell where the target SDCCH is located if the BSC assigns an SDCCH and sends a CHAN ACTIV message to the BTS. In the incoming external inter-cell SDCCH handover procedure, the BSC sends a CHAN ACTIV message to the BTS. If the BTS returns a CHAN ACTIV NACK message, the SDCCH handover fails. The BSC measures R3350B: CHAN ACTIV NACK Messages Sent by BTS in Incoming External Inter-Cell Handover Procedure (SDCCH) in the cell where the target SDCCH is located. In the incoming external inter-cell SDCCH handover procedure, the BSC sends a CHAN ACTIV message to the BTS and triggers an internal timer. If no CHAN ACTIV ACK message is received within scheduled time (five seconds by default), the BSC measures R3350C:
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Channel Activation Timeouts in Incoming External Inter-Cell Handover Procedure (SDCCH) in the cell where the target SDCCH is located.
Trigger Point For the trigger points of the counters, see the flow charts in the following measurement units: z
Immediate Assignment Measurement per Cell
z
Assignment Measurement per Cell
z
Intra-Cell Handover Measurement per Cell
z
Incoming Internal Inter-Cell Handover Measurement per Cell
z
Outgoing Internal Inter-Cell Handover Measurement per Cell
z
Incoming External Inter-Cell Handover Measurement per Cell
z
Outgoing External Inter-Cell Handover Measurement per Cell
z
Incoming Inter-RAT Inter-Cell Handover Measurement per Cell
z
Outgoing External Inter-Cell Handover Measurement per Cell
Formula None.
11.6.3 TCH Connection Measurement per Cell Counter Table 11-10 lists the counters of TCH Connection Measurement per Cell. Table 11-10 TCH Connection Measurement per Cell
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Number
Counter
1
R3307A: Channel Activation Attempts in Immediate Assignment Procedure (TCHF)
2
R3308A: Channel Activation Attempts in Immediate Assignment Procedure (TCHH)
3
R3307B: CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (TCHF)
4
R3308B: CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (TCHH)
5
R3307C: Channel Activation Timeouts in Immediate Assignment Procedure (TCHF)
6
R3308C: Channel Activation Timeouts in Immediate Assignment Procedure (TCHH)
7
R3317A: Channel Activation Attempts in Assignment Procedure (TCHF)
8
R3318A: Channel Activation Attempts in Assignment Procedure (TCHH)
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Number
Counter
9
R3317B: CHAN ACTIV NACK Messages Sent by BTS in Assignment Procedure (TCHF)
10
R3318B: CHAN ACTIV NACK Messages Sent by BTS in Assignment Procedure (TCHH)
11
R3317C: Channel Activation Timeouts in Assignment Procedure (TCHF)
12
R3318C: Channel Activation Timeouts in Assignment Procedure (TCHH)
13
R3327A: Channel Activation Attempts in Mode Modify Procedure (TCHF)
14
R3328A: Channel Activation Attempts in Mode Modify Procedure (TCHH)
15
R3327B: CHAN ACTIV NACK Messages Sent by BTS in Mode Modify Procedure (TCHF)
16
R3328B: CHAN ACTIV NACK Messages Sent by BTS in Mode Modify Procedure (TCHH)
17
R3327C: Channel Activation Timeouts in Mode Modify Procedure (TCHF)
18
R3328C: Channel Activation Timeouts in Mode Modify Procedure (TCHH)
19
R3337A: Channel Activation Attempts in Internal Intra-Cell Handover Procedure (TCHF)
20
R3338A: Channel Activation Attempts in Internal Intra-Cell Handover Procedure (TCHH)
21
R3337B: CHAN ACTIV NACK Messages Sent by BTS in Internal Intra-Cell Handover Procedure (TCHF)
22
R3338B: CHAN ACTIV NACK Messages Sent by BTS in Internal Intra-Cell Handover Procedure (TCHH)
23
R3337C: Channel Activation Timeouts in Internal Intra-Cell Handover Procedure (TCHF)
24
R3338C: Channel Activation Timeouts in Internal Intra-Cell Handover Procedure (TCHH)
25
R3347A: Channel Activation Attempts in Incoming Internal Inter-Cell Handover Procedure (TCHF)
26
R3348A: Channel Activation Attempts in Incoming Internal Inter-Cell Handover Procedure (TCHH)
27
R3347B: CHAN ACTIV NACK Messages Sent by BTS in Incoming Internal Inter-Cell Handover Procedure (TCHF)
28
R3348B: CHAN ACTIV NACK Messages Sent by BTS in Incoming Internal Inter-Cell Handover Procedure (TCHH)
29
R3347C: Channel Activation Timeouts in Incoming Internal Inter-Cell Handover Procedure (TCHF)
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Number
Counter
30
R3348C: Channel Activation Timeouts in Incoming Internal Inter-Cell Handover Procedure (TCHH)
31
R3357A: Channel Activation Attempts in Incoming External Inter-Cell Handover Procedure (TCHF)
32
R3358A: Channel Activation Attempts in Incoming External Inter-Cell Handover Procedure (TCHH)
33
R3357B: CHAN ACTIV NACK Messages Sent by BTS in Incoming External Inter-Cell Handover Procedure (TCHF)
34
R3358B: CHAN ACTIV NACK Messages Sent by BTS in Incoming External Inter-Cell Handover Procedure (TCHH)
35
R3357C: Channel Activation Timeouts in Incoming External Inter-Cell Handover Procedure (TCHF)
36
R3358C: Channel Activation Timeouts in Incoming External Inter-Cell Handover Procedure (TCHH)
Meaning In the immediate assignment procedure, the BSC receives a CHAN RQD message from the BTS. If the BSC assigns a TCH (TCHF or TCHH) and sends a CHAN ACTIV message to the BTS, the BSC measures R3307A: Channel Activation Attempts in Immediate Assignment Procedure (TCHF) or R3308A: Channel Activation Attempts in Immediate Assignment Procedure (TCHH) in the cell where the TCH is located. In the TCH immediate assignment procedure, the BSC sends a CHAN ACTIV message to the BTS. If the BTS returns a CHAN ACTIV NACK message, the TCH activation fails. The BSC measures R3307B: CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (TCHF) or R3308B: CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (TCHH) in the cell where the TCH is located. In the TCH immediate assignment procedure, the BSC sends a CHAN ACTIV message to the BTS and triggers an internal timer. If no CHAN ACTIV ACK message is received within scheduled time (five seconds by default), the BSC measures R3307C: Channel Activation Timeouts in Immediate Assignment Procedure (TCHF) or R3308C: Channel Activation Timeouts in Immediate Assignment Procedure (TCHH) in the cell where the TCH is located. When the signaling or traffic is stable, the BSC receives an ASS REQ message from the MSC. If the requested service is of the speech or the data type and if the assignment procedure proceeds, the BSC assigns a TCH and sends a CHAN ACTIV message to the BTS. Meanwhile, the BSC measures R3317A: Channel Activation Attempts in Assignment Procedure (TCHF) and R3318A: Channel Activation Attempts in Assignment Procedure (TCHH) in the cell where the TCH is located. In the assignment procedure, the BSC assigns a TCH and sends a CHAN ACTIV message to the BTS. If the BTS returns a CHAN ACTIV NACK message, the channel activation fails. The BSC measures R3317B: CHAN ACTIV NACK Messages Sent by BTS in Assignment Procedure (TCHF) or R3318B: CHAN ACTIV NACK Messages Sent by BTS in Assignment Procedure (TCHH) in the cell where the TCH is located.
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In the assignment procedure, the BSC assigns a TCH and sends a CHAN ACTIV message to the BTS. The BSC also triggers an internal timer concurrently. If no CHAN ACTIV ACK message is received within scheduled time (five seconds by default), the BSC measures R3317C: Channel Activation Timeouts in Assignment Procedure (TCHF) or R3318C: Channel Activation Timeouts in Assignment Procedure (TCHH) in the cell where the TCH is located. When the signaling or traffic is stable, the BSC receives an ASS REQ message from the MSC. If the requested service is of the speech or the data type and the BSC decides to initiate the Mode Modify procedure, the BSC sends a MODE MODIFY message to the BTS and measures R3327A: Channel Activation Attempts in Mode Modify Procedure (TCHF) or R3328A: Channel Activation Attempts in Mode Modify Procedure (TCHH) in the cell where the TCH is located. In the Mode Modify procedure, the BSC sends a MODE MODIFY message to the BTS. If the BTS returns a MODE MODIFY NACK message, the Mode Modify procedure fails. The BSC measures R3327B: CHAN ACTIV NACK Messages Sent by BTS in Mode Modify Procedure (TCHF) or R3328B: CHAN ACTIV NACK Messages Sent by BTS in Mode Modify Procedure (TCHH) in the cell where the TCH is located. In the Mode Modify procedure, the BSC sends a MODE MODIFY message to the BTS and triggers an internal timer. If no MODE MODIFY ACK message is received within scheduled time (five seconds by default), the BSC measures R3327C: Channel Activation Timeouts in Mode Modify Procedure (TCHF) or R3328C: Channel Activation Timeouts in Mode Modify Procedure (TCHH) in the cell where the TCH is located. When an MS is in stable state on a TCH, the BSC sends a CHAN ACTIV message to the BTS where the target cell is located if the BSC decides to initiate a handover based on measurement reports and if the target cell is the current cell. The BSC measures R3337A: Channel Activation Attempts in Internal Intra-Cell Handover Procedure (TCHF) or R3338A: Channel Activation Attempts in Internal Intra-Cell Handover Procedure (TCHH) in the cell where the target TCH is located. In the intra-cell TCH handover procedure, the BSC sends a CHAN ACTIV message to the BTS. If the BTS returns a CHAN ACTIV NACK message, the channel activation fails. The BSC measures R3337B: CHAN ACTIV NACK Messages Sent by BTS in Internal Intra-Cell Handover Procedure (TCHF) or R3338B: CHAN ACTIV NACK Messages Sent by BTS in Internal Intra-Cell Handover Procedure (TCHH) in the cell where the target TCH is located. In the intra-cell TCH handover procedure, the BSC sends a CHAN ACTIV message to the BTS and triggers an internal timer. If no CHAN ACTIV ACK is received within scheduled time (five seconds by default), the BSC measures R3337C: Channel Activation Timeouts in Internal Intra-Cell Handover Procedure (TCHF) or R3338C: Channel Activation Timeouts in Internal Intra-Cell Handover Procedure (TCHH) in the cell where the target TCH is located. When an MS is in stable state on a TCH, the BSC sends a CHAN ACTIV message to the BTS where the target cell is located if the BSC decides to initiate a handover based on measurement reports and if the target cell and the current cell are two cells in one BSC. Meanwhile, the BSC measures R3347A: Channel Activation Attempts in Incoming Internal Inter-Cell Handover Procedure (TCHF) or R3348A: Channel Activation Attempts in Incoming Internal Inter-Cell Handover Procedure (TCHH) in the cell where the target TCH is located. In the incoming internal inter-cell TCH handover procedure, the BSC sends a CHAN ACTIV message to the BTS. If the BTS return s a CHAN ACTIV NACK message, the channel activation fails. The BSC measures R3347B: CHAN ACTIV NACK Messages Sent by BTS in Incoming Internal Inter-Cell Handover Procedure (TCHF) and R3348B: CHAN ACTIV
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NACK Messages Sent by BTS in Incoming Internal Inter-Cell Handover Procedure (TCHH) in the cell where the target TCH is located. In the incoming internal inter-cell TCH handover procedure, the BSC sends a CHAN ACTIV message to the BTS and triggers an internal timer. If no CHAN ACTIV ACK message is received within scheduled time (five seconds by default), the BSC measures R3347C: Channel Activation Timeouts in Incoming Internal Inter-Cell Handover Procedure (TCHF) or R3348C: Channel Activation Timeouts in Incoming Internal Inter-Cell Handover Procedure (TCHH) in the cell where the target TCH is located. The BSC receives a HO REQ message from the MSC. If the BSC assigns a TCH and sends a CHAN ACTIV to the BTS, the BSC measures R3357A: Channel Activation Attempts in Incoming External Inter-Cell Handover Procedure (TCHF) or R3358A: Channel Activation Attempts in Incoming External Inter-Cell Handover Procedure (TCHH) in the cell where the target TCH is located. In the incoming external inter-cell TCH handover procedure, the BSC sends a CHAN ACTIV message to the BTS. If the BTS returns a CHAN ACTIV NACK message, the channel activation fails. The BSC measures R3357B: CHAN ACTIV NACK Messages Sent by BTS in Incoming External Inter-Cell Handover Procedure (TCHF) or R3358B: CHAN ACTIV NACK Messages Sent by BTS in Incoming External Inter-Cell Handover Procedure (TCHH) in the cell where the target TCH is located. In the incoming external inter-cell TCH handover procedure, the BSC sends a CHAN ACTIV message to the BTS and triggers an internal timer. If no CHAN ACTIV ACK message is received within scheduled time (five seconds by default), the BSC measures R3357C: Channel Activation Timeouts in Incoming External Inter-Cell Handover Procedure (TCHF) or R3358C: Channel Activation Timeouts in Incoming External Inter-Cell Handover Procedure (TCHH) in the cell where the target TCH is located.
Trigger Point For the trigger points of the counters, see the flow charts in the following measurement units: z
Immediate Assignment Measurement per Cell
z
Assignment Measurement per Cell
z
Intra-Cell Handover Measurement per Cell
z
Incoming Internal Inter-Cell Handover Measurement per Cell
z
Outgoing Internal Inter-Cell Handover Measurement per Cell
z
Incoming External Inter-Cell Handover Measurement per Cell
z
Outgoing External Inter-Cell Handover Measurement per Cell
z
Incoming Inter-RAT Inter-Cell Handover Measurement per Cell
z
Outgoing External Inter-Cell Handover Measurement per Cell
Formula None.
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11.6.4 Channel Activation Analyzed Measurement per Cell Counter Table 11-10 lists the counters of Channel Activation Analyzed Measurement per Cell. Table 11-11 Counters of Channel Activation Analyzed Measurement per Cell Number
Counter
1
CR33A: Channel Activation Attempts
2
CR330A: Channel Activation Attempts in Immediate Assignment Procedure
3
CR331A: Channel Activation Attempts in Assignment Procedure
4
CR332A: Channel Activation Attempts in Mode Modify Procedure
5
CR333A: Channel Activation Attempts in Internal Intra-Cell Handover Procedure
6
CR334A: Channel Activation Attempts in Incoming Internal Inter-Cell Handover Procedure
7
CR335A: Channel Activation Attempts in Incoming External Inter-Cell Handover Procedure
8
CR33B: CHAN ACTIV NACK Messages Sent by BTS
9
CR330B: CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure
10
CR331B: CHAN ACTIV NACK Messages Sent by BTS in Assignment Procedure
11
CR332B: CHAN ACTIV NACK Messages Sent by BTS in Mode Modify Procedure
12
CR333B: CHAN ACTIV NACK Messages Sent by BTS in Internal Intra-Cell Handover Procedure
13
CR334B: CHAN ACTIV NACK Messages Sent by BTS in Incoming Internal Inter-Cell Handover Procedure
14
CR335B: CHAN ACTIV NACK Messages Sent by BTS in Incoming External Inter-Cell Handover Procedure
15
CR33C: Channel Activation Timeouts
16
CR330C: Channel Activation Timeouts in Immediate Assignment Procedure
17
CR331C: Channel Activation Timeouts in Assignment Procedure
18
CR332C: Channel Activation Timeouts in Mode Modify Procedure
19
CR333C: Channel Activation Timeouts in Internal Intra-Cell Handover Procedure
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Number
Counter
20
CR334C: Channel Activation Timeouts in Incoming Internal Inter-Cell Handover Procedure
21
CR335C: Channel Activation Timeouts in Incoming External Inter-Cell Handover Procedure
Meaning None.
Trigger Point None.
Formula Channel Activation Attempts = [Channel Activation Attempts in Immediate Assignment Procedure] + [Channel Activation Attempts in Assignment Procedure] + [Channel Activation Attempts in Mode Modify Procedure] + [Channel Activation Attempts in Internal Intra-Cell Handover Procedure] + [Channel Activation Attempts in Incoming Internal Inter-Cell Handover Procedure] + [Channel Activation Attempts in Incoming External Inter-Cell Handover Procedure]
Channel Activation Attempts in Immediate Assignment Procedure = [Channel Activation Attempts in Immediate Assignment Procedure (SDCCH)] + [Channel Activation Attempts in Immediate Assignment Procedure (TCHF)] + [Channel Activation Attempts in Immediate Assignment Procedure (TCHH)]
Channel Activation Attempts in Assignment Procedure = [Channel Activation Attempts in Assignment Procedure (TCHF)] + [Channel Activation Attempts in Assignment Procedure (TCHH)]
Channel Activation Attempts in Mode Modify Procedure = [Channel Activation Attempts in Mode Modify Procedure (TCHF)] + [Channel Activation Attempts in Mode Modify Procedure (TCHH)]
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Channel Activation Attempts in Internal Intra-Cell Handover Procedure = [Channel Activation Attempts in Internal Intra-Cell Handover Procedure (SDCCH)] + [Channel Activation Attempts in Internal Intra-Cell Handover Procedure (TCHF)] + [Channel Activation Attempts in Internal Intra-Cell Handover Procedure (TCHH)]
Channel Activation Attempts in Incoming Internal Inter-Cell Handover Procedure = [Channel Activation Attempts in Incoming Internal Inter-Cell Handover Procedure (SDCCH)] + [Channel Activation Attempts in Incoming Internal Inter-Cell Handover Procedure (TCHF)] + [Channel Activation Attempts in Incoming Internal Inter-Cell Handover Procedure (TCHH)]
Channel Activation Attempts in Incoming External Inter-Cell Handover Procedure = [Channel Activation Attempts in Incoming External Inter-Cell Handover Procedure (SDCCH)] + [Channel Activation Attempts in Incoming External Inter-Cell Handover Procedure (TCHF)] + [Channel Activation Attempts in Incoming External Inter-Cell Handover Procedure (TCHH)]
CHAN ACTIV NACK Messages Sent by BTS = [CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure] + [CHAN ACTIV NACK Messages Sent by BTS in Assignment Procedure] + [CHAN ACTIV NACK Messages Sent by BTS in Mode Modify Procedure] + [CHAN ACTIV NACK Messages Sent by BTS in Internal Intra-Cell Handover Procedure] + [CHAN ACTIV NACK Messages Sent by BTS in Incoming Internal Inter-Cell Handover Procedure] + [CHAN ACTIV NACK Messages Sent by BTS in Incoming External Inter-Cell Handover Procedure]
CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure = [CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (SDCCH)] + [CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (TCHF)] + [CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (TCHH)]
CHAN ACTIV NACK Messages Sent by BTS in Assignment Procedure =
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[CHAN ACTIV NACK Messages Sent by BTS in Assignment Procedure (TCHF)] + [CHAN ACTIV NACK Messages Sent by BTS in Assignment Procedure (TCHH)]
CHAN ACTIV NACK Messages Sent by BTS in Mode Modify Procedure = [CHAN ACTIV NACK Messages Sent by BTS in Mode Modify Procedure (TCHF)] + [CHAN ACTIV NACK Messages Sent by BTS in Mode Modify Procedure (TCHH)]
CHAN ACTIV NACK Messages Sent by BTS in Internal Intra-Cell Handover Procedure = [CHAN ACTIV NACK Messages Sent by BTS in Internal Intra-Cell Handover Procedure (SDCCH)] + [CHAN ACTIV NACK Messages Sent by BTS in Internal Intra-Cell Handover Procedure (TCHF)] + [CHAN ACTIV NACK Messages Sent by BTS in Internal Intra-Cell Handover Procedure (TCHH)]
CHAN ACTIV NACK Messages Sent by BTS in Incoming Internal Inter-Cell Handover Procedure = [CHAN ACTIV NACK Messages Sent by BTS in Incoming Internal Inter-Cell Handover Procedure (SDCCH)] + [CHAN ACTIV NACK Messages Sent by BTS in Incoming Internal Inter-Cell Handover Procedure (TCHF)] + [CHAN ACTIV NACK Messages Sent by BTS in Incoming Internal Inter-Cell Handover Procedure (TCHH)]
CHAN ACTIV NACK Messages Sent by BTS in Incoming External Inter-Cell Handover Procedure = [CHAN ACTIV NACK Messages Sent by BTS in Incoming External Inter-Cell Handover Procedure (SDCCH)] + [CHAN ACTIV NACK Messages Sent by BTS in Incoming External Inter-Cell Handover Procedure (TCHF)] + [CHAN ACTIV NACK Messages Sent by BTS in Incoming External Inter-Cell Handover Procedure (TCHH)]
Channel Activation Timeouts = [Channel Activation Timeouts in Immediate Assignment Procedure] + [Channel Activation Timeouts in Assignment Procedure] + [Channel Activation Timeouts in Mode Modify Procedure] + [Channel Activation Timeouts in Internal Intra-Cell Handover Procedure] +
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[Channel Activation Timeouts in Incoming Internal Inter-Cell Handover Procedure] + [Channel Activation Timeouts in Incoming External Inter-Cell Handover Procedure]
Channel Activation Timeouts in Immediate Assignment Procedure = [Channel Activation Timeouts in Immediate Assignment Procedure (SDCCH)] + [Channel Activation Timeouts in Immediate Assignment Procedure (TCHF)] + [Channel Activation Timeouts in Immediate Assignment Procedure (TCHH)]
Channel Activation Timeouts in Assignment Procedure = [Channel Activation Timeouts in Assignment Procedure (TCHF)] + [Channel Activation Timeouts in Assignment Procedure (TCHH)]
Channel Activation Timeouts in Mode Modify Procedure = [Channel Activation Timeouts in Mode Modify Procedure (TCHF)] + [Channel Activation Timeouts in Mode Modify Procedure (TCHH)]
Channel Activation Timeouts in Internal Intra-Cell Handover Procedure = [Channel Activation Timeouts in Internal Intra-Cell Handover Procedure (SDCCH)] + [Channel Activation Timeouts in Internal Intra-Cell Handover Procedure (TCHF)] + [Channel Activation Timeouts in Internal Intra-Cell Handover Procedure (TCHH)]
Channel Activation Timeouts in Incoming Internal Inter-Cell Handover Procedure = [Channel Activation Timeouts in Incoming Internal Inter-Cell Handover Procedure (SDCCH)] + [Channel Activation Timeouts in Incoming Internal Inter-Cell Handover Procedure (TCHF)] + [Channel Activation Timeouts in Incoming Internal Inter-Cell Handover Procedure (TCHH)]
Channel Activation Timeouts in Incoming External Inter-Cell Handover Procedure = [Channel Activation Timeouts in Incoming External Inter-Cell Handover Procedure (SDCCH)] + [Channel Activation Timeouts in Incoming External Inter-Cell Handover Procedure (TCHF)] + [Channel Activation Timeouts in Incoming External Inter-Cell Handover Procedure (TCHH)]
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11.7 Channel Seizure Measurement per TRX Counter Channel Seizure Measurement per TRX is used to measure the channel seizures in all types of service procedures. Table 11-12 lists the counters of Channel Seizure Measurement per TRX. Table 11-12 Counters of Channel Seizure Measurement per TRX Number
Counter
1
R4400A: Attempted Immediate Assignments (SDCCH)
2
R4409A: Attempted Immediate Assignments (TCH)
3
R4400B: Successful Immediate Assignments (SDCCH)
4
R4409B: Attempted Immediate Assignment Procedures (TCH)
5
R4419A: Attempted Assignments (TCH)
6
R4419B: Completed Assignments (TCH)
7
R4429A: Attempted Mode Modify Procedures (TCH)
8
R4429B: Completed Mode Modify Procedures (TCH)
9
R4430A: Attempted Handovers (SDCCH)
10
R4439A: Attempted Handovers (TCH)
11
R4430B: Completed Handovers (SDCCH)
12
R4439B: Completed Handovers (TCH)
13
CR440A: Attempted Immediate Assignments
14
CR440B: Successful Immediate Assignments
15
CR443A: Attempted Handovers
16
CR443B: Completed Handovers
Meaning In the SDCCH immediate assignment procedure, the BSC receives from the BTS a CHAN ACTIV ACK message, indicating that the SDCCH is successfully activated. The BSC sends an IMM ASS CMD message, requesting the MS to access the specified SDCCH. Meanwhile, the BSC measures R4400A: Attempted Immediate Assignments (SDCCH) in the TRX where the SDCCH is located. In the TCH immediate assignment procedure, the BSC receives from the BTS a CHAN ACTIV ACK message, indicating that the TCH is successfully activated. The BSC sends an IMM ASS CMD message, requesting the MS to access the specified TCH. Meanwhile, the
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BSC measures R4409A: Attempted Immediate Assignments (TCH) in the TRX where the TCH is located. In the SDCCH immediate assignment procedure, an MS reports a FIRST SABM frame to the BTS on the SDCCH after seizing the assigned SDCCH. Through this frame, the MS notifies the BTS that the radio link layer has entered multiframe link setup state. The BTS returns a UA frame to the MS and sends the BSC an EST IND message to notify the BSC that the link is established on the Um interface. After receiving the EST IND message, the BSC measures R4400B: Successful Immediate Assignments (SDCCH) in the TRX where the SDCCH is located. In the TCH immediate assignment procedure, an MS reports a FIRST SABM frame to the BTS on the TCH after seizing the assigned TCH. Through this frame, the MS notifies the BTS that the radio link layer has entered multiframe link setup state. The BTS returns a UA frame to the MS and sends the BSC an EST IND message to notify the BSC that the link is established on the Um interface. After receiving the EST IND message, the BSC measures R4409B: Attempted Immediate Assignment Procedures (TCH) in the TRX where the TCH is located. In the assignment procedure, the BSC assigns a TCH and receives a CHAN ACTIV ACK message. The BSC then sends an ASS CMD message to the MS and measures R4419A Attempted Assignments (TCH) in the TRX where the TCH is located. In the assignment procedure, the BSC assigns a TCH and sends an ASS CMD message to the MS. After receiving the ASS CMD message, the MS sends the BTS a FIRST SABM frame, indicating that the Um interface is in multiframe link setup state. The BTS returns a UA frame to the MS and sends the BSC an EST IND message, indicating that the link is established on the Um interface. After receiving the UA frame, the MS sends an ASS CMP message to the BSC. The BSC receives this message and measures R4419B: Completed Assignments (TCH) in the TRX where the TCH is located. In the Mode Modify procedure, the BSC sends a CHAN MODE MODIFY message to the MS after receiving a MODE MODIFY ACK message. Meanwhile, the BSC measures R4429A: Attempted Mode Modify Procedures (TCH) in the TRX where the TCH is located. In the Mode Modify procedure, the MS sends a FIRST SABM frame to the BTS after receiving a CHAN MODE MODIFY message. This frame indicates that the Um interface is in multiframe link setup state. The BTS returns a UA frame to the MS and sends the BSC an EST IND message, indicating that the link is established on the Um interface. After receiving the UA frame, the MS sends a CHAN MODE MODIFY ACK message to the BSC. The BSC receives this message and measures R4429B: Completed Mode Modify Procedures (TCH) in the TRX where the TCH is located. In the SDCCH handover procedure, the BSC sends an HO CMD message from the source cell to the MS after receiving a CHAN ACTIV ACK message from the target cell. Meanwhile, the BSC measures R4430A: Attempted Handovers (SDCCH) in the TRX where the target SDCCH is located. In the TCH handover procedure, the BSC sends an HO CMD message from the source cell to the MS after receiving a CHAN ACTIV ACK message from the target cell. Meanwhile, the BSC measures R4439A: Attempted Handovers (TCH) in the TRX where the target TCH is located. In the SDCCH handover procedure, the MS sends an HO ACC message to the BTS where the target cell is located after receiving an HO CMD message. The BTS notifies the BSC of this message through an HO DETECT message. If the source cell and the target cell belong to different BTSs, the BTS where the target cell is located sends a PHY INFO message to the MS. The MS returns a FIRST SABM frame and sends an EST IND message from the target
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cell to the BSC. The MS also sends an HO CMP message to the BSC. After receiving this message, the BSC measures R4430B: Completed Handovers (SDCCH) in the TRX where the target SDCCH is located. In the TCH handover procedure, the MS sends an HO ACC message to the BTS where the target cell is located after receiving an HO CMD message. The BTS notifies the BSC of this message through an HO DETECT message. If the source cell and the target cell belong to different BTSs, the BTS where the target cell is located sends a PHY INFO message to the MS. The MS returns a FIRST SABM frame and sends an EST IND message from the target cell to the BSC. The MS also sends an HO CMP message to the BSC. After receiving this message, the BSC measures R4439B: Completed Handovers (TCH) in the TRX where the target TCH is located. In the immediate assignment procedure, the BSC receives from the BTS a CHAN ACTIV ACK message, indicating that the channel is successfully activated. The BSC sends an IMM ASS CMD message, requesting the MS to access the specified channel. This channel can be an SDCCH or a TCH. CR440A: Attempted Immediate Assignments is used to measure the IMM ASS CMD messages received on all the channels of a TRX. In the immediate assignment procedure, an MS reports a FIRST SABM frame to the BTS on the TCH after seizing the assigned channel. Through this frame, the MS notifies the BTS that the radio link layer has entered multiframe link setup state. The BTS returns a UA frame to the MS and sends the BSC an EST IND message to notify the BSC that the link is established on the Um interface. The channel can be an SDCCH or a TCH. CR440B: Successful Immediate Assignment Procedures is used to measure the EST IND messages received on all the channels of a TRX. In a handover procedure, the BSC sends an HO CMD message from the source cell to the MS after receiving a CHAN ACTIV ACK message from the target cell. The handover can be an SDCCH handover or a TCH handover. CR443A: Attempted Handovers is used to measure the Handover CMD messages received on all the channels of a TRX. In a handover procedure, the MS sends an HO ACC message to the BTS where the target cell is located after receiving an HO CMD message. The BTS notifies the BSC of this message through an HO DETECT message. If the source cell and the target cell belong to different BTSs, the BTS where the target cell is located sends a PHY INFO message to the MS. The MS returns a FIRST SABM frame and sends an EST IND message from the target cell to the BSC. The MS also sends an HO CMP message to the BSC. CR443B: Completed Handovers is used to measure the Handover CMP received on all the channels of a TRX.
Trigger Point For the trigger points of the counters, see the flow charts in Immediate Assignment Measurement per Cell, Assignment Measurement per Cell, Intra-Cell Handover Measurement per Cell, Incoming Internal Inter-Cell Handover Measurement per Cell, Outgoing Internal Inter-Cell Handover Measurement per Cell, Incoming External Inter-Cell Handover Measurement per Cell, Outgoing External Inter-Cell Handover Measurement per Cell, Incoming Inter-RAT Inter-Cell Handover Measurement per Cell, and Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell.
Formula Attempted Immediate Assignments = [Attempted Immediate Assignments (SDCCH)] + [Attempted Immediate Assignments (TCH)]
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Successful Immediate Assignment Procedures = [Successful Immediate Assignments (SDCCH)] + [Attempted Immediate Assignment Procedures (TCH)]
Attempted Handovers = [Attempted Handovers (SDCCH)] + [Attempted Handovers (TCH)]
Completed Handovers = [Completed Handovers (SDCCH)] + [Completed Handovers (TCH)]
11.8 Immediate Assignment Measurement per Cell 11.8.1 Overview When an MS requires network services for reasons such as Mobile Originated Call (MOC), Mobile Terminated Call (MTC), emergency call, call re-establishment, location updating, packet call, and Location Measurement Unit (LMU)+Reserved, it sends the BTS a CHAN REQ message on the RACH. After receiving this message, the BTS reports a CHAN RQD message to the BSC. After receiving the CHAN RQD message, the BSC assigns and activates a signaling channel to the MS. If the BSC receives a CHAN ACTIV ACK message from the BTS, the signaling channel is ready for the assignment. The BSC sends an IMM ASS CMD message, requesting the MS to access the specified signaling channel. This signaling channel can be an SDCCH or a TCH. After receiving a FIRST SABM frame from the MS, the BTS sends an EST IND message to the BSC. After receiving the EST IND message that carries an MM message (CM SERV REQ message, LOC UPD REQ message, IMSI DTCH message, PAG RSP message, CM RE-EST REQ message), the BSC requests the MSC to establish the A interface connection and transparently transmits the MM message to the MSC.
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Figure 11-1 shows the immediate assignment procedure. Figure 11-1 Immediate assignment procedure MS
BTS
BSC
CHAN REQ CHAN RQD CHAN ACTIV
A
CHAN ACTIV ACK IMM ASS CMD EST IND
B C
Table 11-13 lists the counter classification of Immediate Assignment Measurement per Cell. Table 11-13 Counter classification of Immediate Assignment Measurement per Cell Counter Classification
Section
Channel Requests per Cell
11.8.2
Immediate Assignment Commands per Cell
11.8.3
Call Setup Indications per Cell
11.8.4
Rejects to Service Requests per Cell
11.8.5
Immediate Assignment Analyzed Measurement per Cell
11.8.6
11.8.2 Channel Requests per Cell Counter Table 11-14 lists the counters of Channel Requests per Cell. Table 11-14 Counters of Channel Requests per Cell
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Number
Counter
1
A300A: Channel Requests (MOC)
2
A300C: Channel Requests (MTC)
3
A300D: Channel Requests (Emergency Call)
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Counter
4
A300E: Channel Requests (Call Re-establishment)
5
A300F: Channel Requests (Location Updating)
6
A300H: Channel Requests (Packet Call)
7
A300I: Channel Requests (LMU+Reserved)
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Meaning When an MS requires network services, it sends the BTS a CHAN REQ message on the RACH. After receiving this message, the BTS reports a CHAN RQD message to the BSC for a dedicated channel. The counters measure channel access due to different causes.
Trigger Point As shown in Figure 11-1 (A), the measurement is triggered when the BSC receives a CHAN RQD message from the BTS where the target cell is located. The measurement is based on the access cause.
Formula None.
11.8.3 Immediate Assignment Commands per Cell Counter Table 11-15 lists the counters of Immediate Assignment Commands per Cell. Table 11-15 Counters of Immediate Assignment Commands per Cell Number
Counter
1
A3010: Immediate Assignment Commands (SDCCH)
2
A3017: Immediate Assignment Commands (TCHF)
3
A3018: Immediate Assignment Commands (TCHH)
4
A301H: Immediate Assignment Commands (Packet Service)
5
A302J: Rejects to Immediate Assignments (Circuit Service)
6
A302H: Rejects to Immediate Assignments (Packet Service)
Meaning In the immediate assignment procedure, the BSC sends the MS an IMM ASS CMD message after receiving a CHAN ACTIV ACK message from the BTS. Through this message, the BSC
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notifies the MS to access the specified signaling channel. The signaling channel can be an SDCCH, TCHF, or TCHH. The access cause is circuit services or packet services. After receiving a CHAN RQD message from the BTS, the BSC sends the MS an IMM ASS REJ message if there is no channel available, the channel activation fails, or the channel activation timed out. The immediate assignment fails.
Trigger Point Figure 11-2 shows the trigger points of the counters of Immediate Assignment Commands per Cell. Figure 11-2 trigger points of the counters of Immediate Assignment Commands per Cell MS
BTS
BSC
CHAN REQ CHAN RQD IMM ASS REJ CHAN ACTIV
A
CHAN ACTIV NACK IMM ASS REJ TIME OUT
B
IMM ASS REJ C
As shown in Figure 11-1 (B), the measurement related to immediate assignment commands is triggered when the BSC sends an IMM ASS CMD message to an MS in the target cell. The measurement is based on the channel type and the access cause. As shown in Figure 11-2 (A), (B), and (C), the BSC sends an IMM ASS REJ message to an MS in the target cell. If the access cause is packet services, the BSC measures Rejects to Immediate Assignments (Packet Service). If the access cause is not packet services, the BSC measures Rejects to Immediate Assignments (Circuit Service). The descriptions of trigger points A, B, and C are as follows: z
Trigger point A means that the immediate assignment is rejected because there are no available channels.
z
Trigger point B means that the immediate assignment is rejected because the channel activation fails.
z
Trigger point C means that the immediate assignment is rejected because the channel activation timed out.
Formula None.
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11.8.4 Call Setup Indications per Cell Counter Table 11-16 lists the counters of Call Setup Indications. Table 11-16 Counters of Call Setup Indications Number
Counter
1
A3030A: Call Setup Indications (MOC Non SMS) (SDCCH)
2
A3030B: Call Setup Indications (MOC SMS) (SDCCH)
3
A3030C: Call Setup Indications (MTC) (SDCCH)
4
A3030D: Call Setup Indications (Emergency Call) (SDCCH)
5
A3030E: Call Setup Indications (Call Re-establishment) (SDCCH)
6
A3030F: Call Setup Indications (Location Updating) (SDCCH)
7
A3030G: Call Setup Indications (IMSI Detach) (SDCCH)
8
A3030H: Call Setup Indications (Packet Service) (SDCCH)
9
A3030I: Call Setup Indications (SS) (SDCCH)
10
A3030J: Call Setup Indications (LCS) (SDCCH)
11
A3030K: Call Setup Indications (Others) (SDCCH)
12
A3037A: Call Setup Indications (MOC Non SMS) (TCHF)
13
A3037B: Call Setup Indications (MOC SMS) (TCHF)
14
A3037C: Call Setup Indications (MTC) (TCHF)
15
A3037D: Call Setup Indications (Emergency Call) (TCHF)
16
A3037E: Call Setup Indications (Call Re-establishment) (TCHF)
17
A3037G: Call Setup Indications (IMSI Detach) (TCHF)
18
A3037H: Call Setup Indications (Packet Service) (TCHF)
19
A3037I: Call Setup Indications (SS) (TCHF)
20
A3037J: Call Setup Indications (LCS) (TCHF)
21
A3037K: Call Setup Indications (Others) (TCHF)
22
A3038A: Call Setup Indications (MOC Non SMS) (TCHH)
23
A3038C: Call Setup Indications (MTC) (TCHH)
24
A3038E: Call Setup Indications (Call Re-establishment) (TCHH)
25
A3038H: Call Setup Indications (Packet Service) (TCHH)
26
A3038I: Call Setup Indications (SS) (TCHH)
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Number
Counter
27
A3038J: Call Setup Indications (LCS) (TCHH)
28
A3038K: Call Setup Indications (Others) (TCHH)
29
A3040: Call Setup Indications Timed Out (SDCCH)
30
A3047: Call Setup Indications Timed Out (TCHF)
31
A3048: Call Setup Indications Timed Out (TCHH)
Meaning In the immediate assignment procedure, an MS reports a FIRST SABM frame to the BTS on the seized signaling channel (SDCCH, TCHF, or TCHH). Through this frame, the MS notifies the BTS that the radio link layer has entered the multiframe link setup state. The BTS returns a UA frame to the MS and sends the BSC an EST IND message to notify the BSC that the link is established on the Um interface. In the immediate assignment procedure, the BSC sends an IMM ASS CMD message to an MS and triggers a timer. If no EST IND message is received within scheduled time (10 seconds by default), the BSC measures the counters related to the timeout of call setup indications.
Trigger Point As shown in Figure 11-1 (C), the measurement related to call setup indications is triggered when the BSC receives an EST IND message from the BTS where the target cell is located. This measurement is based on the channel type and the value of the service request message. As shown in Figure 11-3 (A), the BSC sends an IMM ASS CMD message in the target cell. The measurement related to the timeout of call setup indications is triggered if no EST IND message is received within scheduled time. This measurement is based on the channel type. Figure 11-3 Trigger points of the counters of Call Setup Indications MS
BTS
BSC
CHAN REQ CHAN RQD CHAN ACTIV CHAN ACTIV ACK IMM ASS CMD TIME OUT A
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Formula None.
11.8.5 Rejects to Service Requests per Cell Counter Table 11-17 lists the counters of Rejects to Service Requests per Cell. Table 11-17 Counter of Rejects to Service Requests per Cell Number
Counter
1
A3050: Rejects to Service Requests (Congestion)
2
A3051: Rejects to Service Requests (Network Failure)
3
A3052: Rejects to Service Requests (Illegal MS)
4
A3053: Rejects to Service Requests (Other Causes)
Meaning In the immediate assignment procedure where an MS requests for connection setup, the MS establishes an RR connection with the BSS first, and then sends a CM SERV REQ message on the MM layer. The BSS transparently transmits this message to the NSS. If the NSS does not support or cannot respond to the service request due to congestion, network failure, illegal MS or other causes, the MSC sends a CM SERV REJ message to the MS and the BSC transparently transmits this message.
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Trigger Point As shown in Figure 11-4 (A), the measurement is triggered when the BSC receives a CM SERV REJ message that is sent from the MSC to an MS in the target cell. The measurement is based on the reject cause. Figure 11-4 Trigger points of the counters of Rejects to Service Requests per Cell MS
BTS
BSC
MSC
CHAN REQ CHAN RQD CHAN ACTIV CHAN ACTIV ACK IMM ASS CMD EST IND CR CC CM SERV REJ A
Formula None.
11.8.6 Immediate Assignment Analyzed Measurement per Cell Counter Table 11-18 lists the counters of Immediate Assignment Analyzed Measurement per Cell. Table 11-18 Counters of Immediate Assignment Analyzed Measurement per Cell
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Number
Counter
1
CA300J: Channel Requests (Circuit Service)
2
CA303J: Call Setup Indications (Circuit Service)
3
CA3030J: Call Setup Indications (SDCCH) (Circuit Service)
4
CA3039J: Call Setup Indications (TCH) (Circuit Service)
5
RA301G: Success Rate of Immediate Assignment
6
CA301J: Immediate Assignment Commands (Circuit Service)
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Number
Counter
7
CA303H: Call Setup Indications (Packet Service)
8
CA304: Call Setup Indications Timed Out
9
CA305: Rejects to Service Requests
10
RA303G: Success Rate of Call Setup (Immediate Assignment)
Meaning None.
Trigger Point None.
Formula Channel Requests (Circuit Service) = [Channel Requests (MOC)] + [Channel Requests (MTC)] + [Channel Requests (Emergency Call)] + [Channel Requests (Call Re-establishment)] + [Channel Requests (Location Updating)]
Call Setup Indications (Circuit Service) = [Call Setup Indications (SDCCH) (Circuit Service)] + [Call Setup Indications (TCH) (Circuit Service)]
Call Setup Indications (SDCCH) (Circuit Service) = [Call Setup Indications (MOC Non SMS) (SDCCH)] + [Call Setup Indications (MOC SMS) (SDCCH)] + [Call Setup Indications (MTC) (SDCCH)] + [Call Setup Indications (Emergency Call) (SDCCH)] + [Call Setup Indications (Call Re-establishment) (SDCCH)] + [Call Setup Indications (Location Updating) (SDCCH)] + [Call Setup Indications (IMSI Detach) (SDCCH)]
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Call Setup Indications (TCH) (Circuit Service) = [Call Setup Indications (MOC Non SMS) (TCHF)] + [Call Setup Indications (MOC SMS) (TCHF)] + [Call Setup Indications (MTC) (TCHF)] + [Call Setup Indications (Emergency Call) (TCHF)] + [Call Setup Indications (Call Re-establishment) (TCHF)] + [Call Setup Indications (IMSI Detach) (TCHF)] + [Call Setup Indications (MOC Non SMS) (TCHH)] + [Call Setup Indications (MTC) (TCHH)] + [Call Setup Indications (Call Re-establishment) (TCHH)]
Success Rate of Immediate Assignment = [Immediate Assignment Commands (Circuit Service)]*{100}/[Channel Requests (Circuit Service)]
Immediate Assignment Commands (Circuit Service) = [Immediate Assignment Commands (SDCCH)] + [Immediate Assignment Commands (TCHF)] + [Immediate Assignment Commands (TCHH)]
Call Setup Indications (Packet Service) = [Call Setup Indications (Packet Service) (SDCCH)] + [Call Setup Indications (Packet Service) (TCHF)] + [Call Setup Indications (Packet Service) (TCHH)]
Call Setup Indications Timed Out = [Call Setup Indications Timed Out (SDCCH)] + [Call Setup Indications Timed Out (TCHF)] + [Call Setup Indications Timed Out (TCHH)]
Rejects to Service Requests = [Rejects to Service Requests (Congestion)] + [Rejects to Service Requests (Network Failure)] + [Rejects to Service Requests (Illegal MS)] +
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[Rejects to Service Requests (Other Causes)]
Success Rate of Call Setup (Immediate Assignment) = [Call Setup Indications (Circuit Service)]*{100}/[Channel Requests (Circuit Service)]
11.9 Assignment Measurement per Cell 11.9.1 Overview Table 11-19 lists the counter classification of Assignment Measurement per Cell. Table 11-19 Counter classification of Assignment Measurement per Cell Counter Classification
Section
Assignment Requests per Cell
11.9.2
Assignment Commands per Cell
11.9.3
Completed Assignments per Cell
11.9.4
Failed Assignments per Cell
11.9.5
Mode Modify Commands per Cell
11.9.6
Failed Mode Modify Attempts per Cell
11.9.7
Assignment Procedure Analyzed Measurement per Cell
11.9.8
11.9.2 Assignment Requests per Cell Counter Table 11-20 lists the counters of Assignment Requests per Cell. Table 11-20 Counters of Assignment Requests per Cell Number
Counter
1
A3100A: Assignment Requests (Signaling Channel)
2
A3100B: Assignment Requests (TCHF Only)
3
A3100C: Assignment Requests (TCHH Only)
4
A3100D: Assignment Requests (TCHF Preferred, Channel Type Unchangeable)
5
A3100E: Assignment Requests (TCHH Preferred, Channel Type Unchangeable)
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Number
Counter
6
A3100F: Assignment Requests (TCHF or TCHH, Channel Type Unchangeable)
7
A3100G: Assignment Requests (TCHF Preferred, Channel Type Changeable)
8
A3100H: Assignment Requests (TCHH Preferred, Channel Type Changeable)
9
A3100I: Assignment Requests (TCHF or TCHH, Channel Type Changeable)
10
A3101A: Assignment Requests (MOC)
11
A3101C: Assignment Requests (MTC)
12
A3101D: Assignment Requests (Emergency Call)
13
A3101E: Assignment Requests (Call Re-establishment)
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Meaning The counters measure the ASS REQ messages received by the BSC from the MSC in the assignment procedure. The message specifies the signaling type or service type. If the service type (speech or data) is different, the channel assigned by the MSC is also different. When the channel assigned by the MSC is used for speech services, the assigned channel is of the following types: z
Full rate TCH channel Bm
z
Half rate TCH channel Lm
z
Full or Half rate TCH channel, Full rate preferred, changes between full rate and half rate allowed also after first channel allocation as a result of the request
z
Full or half rate TCH channel, half rate preferred, changes between full rate and half rate allowed also after first channel allocation as a result of the request
z
Full or half rate TCH channel, full rate preferred, changes between full rate and half rate not allowed after first channel allocation as a result of the request
z
Full or half rate TCH channel, half rate preferred, changes between full rate and half rate not allowed after first channel allocation as a result of the request
z
Full or half rate TCH channel, changes between full and half rate allowed also after first channel allocation as a result of the request
z
Full or half rate TCH channel, changes between full and half rate not allowed after first channel allocation as a result of the request
Huawei BSC supports all of the eight channel types. When the channel assigned by the MSC is used for data services, the assigned channel is of the following types: z
Full rate TCH channel Bm
z
Half rate TCH channel Lm
z
Full or half rate TCH channel, full rate preferred, changes between full rate and half rate allowed also after first channel allocation as a result of the request
z
Full or half rate TCH channel, half rate preferred, changes between full rate and half rate allowed also after first channel allocation as a result of the request
z
Full or half rate TCH channel, full rate preferred, changes between full rate and half rate not allowed after first channel allocation as a result of the request
z
Full or Half rate TCH channel. Half rate preferred, changes between full rate and half rate not allowed after first channel allocation as a result of the request
z
Full rate TCH channels in a multislot configuration, changes by the BSS of the number of TCHs and if applicable the used radio interface rate per channel allowed after first channel allocation as a result of the request
z
Full rate TCH channels in a multislot configuration, changes by the BSS of the number of TCHs or the used radio interface rate per channel not allowed after first channel allocation as a result of the request
Huawei BSC supports the first six channel types.
Trigger Point In the immediate assignment procedure, the BSS assigns a signaling channel to an MS. After the RR connection between the MS and the BSS is established, the MS establishes the MM and the CC connections with the MSC through the signaling channel. Based on the CC connection request from the MS, the MSC assigns terrestrial resources to the MS and specifies available channel types in an ASS REQ message.
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The measurement is triggered when the BSC receives an ASS REQ message from the MSC, as shown in Figure 11-5 (A). The measurement is based on the channel type and the access cause carried in the message. Figure 11-5 Trigger point of the counters of Assignment Requests per Cell MS
MSC
BSC
BTS CHAN REQ CHAN RQD CHAN ACTIV CHAN ACTIV ACK IMM ASS CMD SABM UA EST IND
CR(CMP L3 INFO) CC CM SERV ACP SETUP CALL PROCEEDING ASS REQ A
Formula None.
11.9.3 Assignment Commands per Cell Counter Table 11-21 lists the counters of Assignment Commands per Cell. Table 11-21 Counters of Assignment Commands per Cell
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Number
Counter
1
A3117A: Assignment Commands (MOC) (TCHF) (Excluding Directed Retry)
2
A3117C: Assignment Commands (MTC) (TCHF) (Excluding Directed Retry)
3
A3117D: Assignment Commands (Emergency Call) (TCHF) (Excluding Directed Retry)
4
A3117E: Assignment Commands (Call Re-establishment) (TCHF) (Excluding Directed Retry)
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Number
Counter
5
A3118A: Assignment Commands (MOC) (TCHH) (Excluding Directed Retry)
6
A3118C: Assignment Commands (MTC) (TCHH) (Excluding Directed Retry)
7
A3118D: Assignment Commands (Emergency Call) (TCHH) (Excluding Directed Retry)
8
A3118E: Assignment Commands (Call Re-establishment) (TCHH) (Excluding Directed Retry)
Meaning This counter measures the number of times the BSC sends an ASS CMD message to an MS.
Trigger Point In the assignment procedure, the BSC assigns a TCH to an MS (In the signaling traffic assignment, the BSC returns an assignment complete message to the MSC and assigns no signaling channel). After the channel is activated, the BSC sends an ASS CMD message to the MSC. As shown in Figure 11-6 (B), the measurement is triggered when the BSC sends an ASS CMD message to the MSC. The measurement is based on channel types and call access causes. Figure 11-6 Trigger Point of the counters of Assignment Commands per Cell MS
BTS
BSC
MSC ASS REQ
CHAN ACTIV CHAN ACTIV ACK ASS CMD B
Formula None.
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11.9.4 Completed Assignments per Cell Counter Table 11-22 lists the counters of Completed Assignments per Cell. Table 11-22 Counters of Completed Assignments per Cell Number
Counter
1
A3167A: Speech Version 1 Completed Assignments (Excluding Directed Retry) (TCHF)
2
A3167B: Speech Version 2 Completed Assignments (Excluding Directed Retry) (TCHF)
3
A3167C: Speech Version 3 Completed Assignments (Excluding Directed Retry) (TCHF)
4
A3168A: Speech Version 1 Completed Assignments (Excluding Directed Retry) (TCHH)
5
A3168B: Speech Version 2 Completed Assignments (Excluding Directed Retry) (TCHH)
6
A3168C: Speech Version 3 Completed Assignments (Excluding Directed Retry) (TCHH)
Meaning The counters measure the following: z
Number of times the MS sends an ASS CMP message to the BSC in the assignment procedure
z
Number of times the calls use a certain speech version when the MS sends an ASS CMP message to the BSC in the assignment procedure
z
Number of times the MS sends an HO CMP message to the BSC in the directed retry procedure
Trigger Point The assignment procedure is initiated after the BSC receives an ASS REQ message from the MSC. The BSC sends an ASS CMD message to the MS. If a full rate TCH or half rate TCH is successfully assigned to the MS during the first assignment, the MS reports an ASS CMP message to the BSC. The BSC receives this message and forwards it to the MSC.
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As shown in Figure 11-7 (C), the measurement of completed assignments (first assignment of a TCHF or a TCHH) is triggered when the BSC receives an ASS CMP message. Figure 11-7 Trigger points of the counters of Completed Assignments per Cell MS
BSC
BTS
MSC ASS REQ
CHAN ACTIV CHAN ACTIV ACK ASS CMD SABM UA EST IND ASS CMP C ASS CMP
When the BSC receives an ASS REQ message from the MSC, it initiates an assignment procedure. If the first assignment fails, the MS sends an ASS FAIL message to the BSC and the BSC initiates the re-assignment procedure. If a full rate TCH or half rate TCH is successfully assigned to the MS, the MS sends an ASS CMP message to the BSC. The measurement of completed assignments (re-assignment of a TCHF or a TCHH) is triggered when the BSC receives the ASS CMP message. The BSC sends the ASS CMP message to the MSC at the same time.
Formula None.
11.9.5 Failed Assignments per Cell Counter Table 11-23 lists the counters of Failed Assignments per Cell. Table 11-23 Counters of Failed Assignments per Cell Number
Counter
1
A3127A: Failed Assignments (MOC) (TCHF) (Excluding Directed Retry)
2
A3127C: Failed Assignments (MTC) (TCHF) (Excluding Directed Retry)
3
A3127D: Failed Assignments (Emergency Call) (TCHF) (Excluding Directed Retry)
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Number
Counter
4
A3127E: Failed Assignments (Call Re-establishment) (TCHF) (Excluding Directed Retry)
5
A3128A: Failed Assignments (MOC) (TCHH) (Excluding Directed Retry)
6
A3128C: Failed Assignments (MTC) (TCHH) (Excluding Directed Retry)
7
A3128D: Failed Assignments (Emergency Call) (TCHH) (Excluding Directed Retry)
8
A3128E: Failed Assignments (Call Re-establishment) (TCHH) (Excluding Directed Retry)
9
A312Aa: Failed Assignments (MOC) (Including Directed Retry)
10
A312Ca: Failed Assignments (MTC) (Including Directed Retry)
11
A312Da: Failed Assignments (Emergency Call) (Including Directed Retry)
12
A312Ea: Failed Assignments (Call Re-establishment) (Including Directed Retry)
13
A312A: Failed Assignments (Signaling Channel)
14
A3129I: Failed Assignments (Invalid State)
15
A3129J: Failed Assignments (Invalid Message)
16
A3129E: Failed Assignments (CIC Unavailable)
17
A3129F: Failed Assignments (CIC Allocated)
18
A3129G: Failed Assignments (A-Interface Failure)
19
A3129H: Failed Assignments (Clear Commands Sent by MSC)
20
A312A: Failed Assignments (First Assignment, Channel Unavailable in Assignment Procedure)
21
A3129C: Failed Assignments (First Assignment, Assignment Timed Out)
22
A312K: Failed Assignments (First Assignment, Channel Unavailable in Directed Retry Procedure)
23
A3129O: Failed Assignments (First Assignment, Directed Retry Timed Out)
24
A3129B: Failed Assignments (First Assignment, Terrestrial Resource Request Failed)
25
A312L: Failed Assignments (Reconnection to Old Channels, Channel Unavailable in Assignment)
26
A3129D: Failed Assignments (Reconnection to Old Channels, Reconnection to Old Channel in Assignment)
27
A3129P: Failed Assignments (Reconnection to Old Channels, Timer Expired in Assignment)
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Number
Counter
28
A312M: Failed Assignments (Reconnection to Old Channels, Channel Unavailable in Directed Retry)
29
A3129R: Failed Assignments (Reconnection to Old Channels, Reconnection to Old Channel in Directed Retry)
30
A3129Q: Failed Assignments (Reconnection to Old Channels, Timer Expired in Directed Retry)
31
A3129N: Failed Assignments (Reconnection to Old Channels, Terrestrial Resource Request Failed)
Meaning The counters measure the number of failed assignments due to different causes. In the assignment procedure, the MSC sends an ASS REQ message to the BSS. The BSS selects a traffic channel or signaling channel. The assignment may fail due to various causes. An assignment may fail due to any of the following causes: z
The BSS detects that there are no traffic channels or signaling channels available and sends an ASS FAIL message to the MSC.
z
The MS sends an ASS FAIL message to the BSS directly.
z
No ASS CMP message is received within scheduled time after the BSS receives an ASS REQ message from the MSC.
z
The BSS determines that the message is in invalid state.
z
The BSS receives an invalid message.
z
The request for terrestrial resources fails.
z
The CIC is unavailable or is already allocated.
z
A failure occurs on the A interface.
z
The MSC sends a clear command.
Trigger Point If the MSC receives no ASS CMP message after sending an ASS REQ message to the BSS, the measurement of Failed Assignments per Cell is triggered. The BSS sends an ASS FAIL message to the MSC. The measurement is based on the failure cause, procedure, and assigned channel type. z
In the assignment procedure (including or excluding directed retry), the related measurement is triggered when the assignment procedure fails. The measurement is based on the access cause and the assigned channel type.
z
In the assignment procedure, the measurement of Failed Assignments (Invalid State) is triggered when the BSC detects that the status of the received message does not match the current procedure.
z
In the assignment procedure, the related measurement is triggered when the BSC detects that errors occur in the decoding of the received ASS REQ message. The errors may be of the channel type, CIC, and layer 3 header information.
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After the BSC receives an ASS REQ message from the MSC, the measurement of Failed Assignments (First Assignment, Terrestrial Resource Request Failed) is triggered when the BSC fails to request the terrestrial resources specified in the message.
z
In the assignment procedure, the related measurement is triggered when the BSC detects that the CIC carried in the received ASS REQ message is unavailable or is already allocated.
z
In the assignment procedure after the A interface link is established, the MSC sends an ASS REQ message to the BSC. The measurement of Failed Assignments (A-Interface Failure) is triggered when the MSC sends a CLEAR CMD message or a DISCONNECT message to the BSC because errors occur on the A interface.
z
In the assignment procedure, the MSC sends an ASS REQ message to the BSC. The measurement of Failed Assignments (Clear Commands Sent by MSC) is triggered when the MSC sends a CLEAR CMD message before the BSC responds to the ASS REQ message.
z
In the first assignment, directed retry, re-assignment, or re-assignment directed retry procedure, the related measurement is triggered when the BSC detects that there are no available channel resources.
z
In the first assignment or the directed retry procedure, the BSC sends an ASS CMD message, and then triggers an assignment timer. The related measurement is triggered when the timer expires.
z
In the assignment procedure, the BSC receives an ASS REQ message from the MSC. If the first assignment fails, the MS reconnects to the old channel and sends an ASS FAIL message to the BSC. The BSC then initiates the two procedures described previously and the measurement is triggered when the assignment fails.
Formula None.
11.9.6 Mode Modify Commands per Cell Counter Table 11-24 lists the counters of Mode Modify Commands per Cell. Table 11-24 Counters of Mode Modify Commands per Cell
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Number
Counter
1
A3147A: Mode Modify Commands (MOC) (TCHF)
2
A3147C: Mode Modify Commands (MTC) (TCHF)
3
A3147D: Mode Modify Commands (Emergency Call) (TCHF)
4
A3147E: Mode Modify Commands (Call Re-establishment) (TCHF)
5
A3148A: Mode Modify Commands (MOC) (TCHH)
6
A3148C: Mode Modify Commands (MTC) (TCHH)
7
A3148E: Mode Modify Commands (Call Re-establishment) (TCHH)
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Meaning In the immediate assignment procedure, if there are no idle SDCCHs but idle TCHs to be assigned and if the immediate assignment of TCHs is allowed, the assigned full rate or half rate TCH is used as a signaling channel. There is no need to assign a TCH during the assignment. The assigned full rate or half rate TCH is converted to a speech channel through a Mode Modify procedure. The counters measure the number of times the BSC sends a CHAN MODE MODIFY message to the MS after receiving the MODE MODIFY ACK message from the BTS. Together with Completed Mode Modify Procedures (TCH), the counters can be used to calculate the success rate of Mode Modify procedures.
Trigger Point As shown in Figure 11-8 (E1), after receiving the ASS REQ message from the MSC, the BSC checks the CHANNEL TYPE carried in the message and initiates the Mode Modify procedure if the CHANNEL TYPE and the type of the channel assigned in the assignment procedure meet either of the following conditions: z
Same type of channel rate, different speech data indications
z
Same type of channel rate and speech data indication, different speech coding algorithms or data transparent transmission indications
If the Mode Modify procedure is performed in the assignment procedure, the BSC sends a MODE MODIFY message to the BTS. After receiving a MODE MODIFY ACK message from the BTS, the BSC sends a CHAN MODE MODIFY message to the MS. The measurement is triggered when the BSC sends a CHAN MODE MODIFY message to the MS. Figure 11-8 Trigger points of the counters of Mode Modify Commands per Cell MS
BSC
BTS
MSC ASS REQ
MODE MODIFY MODE MODIFY ACK CHANMODE MODIFY E1 CHANMODE MODIFY ACK E2 ASS CMP
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Formula None.
11.9.7 Failed Mode Modify Attempts per Cell Counter Table 11-25 lists the counters of Failed Mode Modify Attempts per Cell. Table 11-25 Counters of Failed Mode Modify Attempts per Cell Number
Counter
1
A3157A: Failed Mode Modify Attempts (MOC) (TCHF)
2
A3157C: Failed Mode Modify Attempts (MTC) (TCHF)
3
A3157D: Failed Mode Modify Attempts (Emergency Call) (TCHF)
4
A3157E: Failed Mode Modify Attempts (Call Re-establishment) (TCHF)
5
A3158A: Failed Mode Modify Attempts (MOC) (TCHH)
6
A3158C: Failed Mode Modify Attempts (MTC) (TCHH)
7
A3158E: Failed Mode Modify Attempts (Call Re-establishment) (TCHH)
8
A3159E: Failed Mode Modify Attempts (CIC Unavailable)
9
A3159F: Failed Mode Modify Attempts (CIC Allocated)
10
A3159B: Failed Mode Modify Attempts (Terrestrial Resource Request Failed)
11
A3159G: Failed Mode Modify Attempts (A-Interface Failure)
12
A3159H: Failed Mode Modify Attempts (Clear Commands Sent by MSC)
13
A3159C: Failed Mode Modify Attempts (Timer Expired)
Meaning The counters measure the number of times the assignment fails after the BSC sends a MODE MODIFY message to the MS.
Trigger Point If the Mode Modify procedure is performed in the assignment procedure but the TCH assignment fails due to various causes, the measurement of Failed Mode Modify Attempts per Cell is triggered. z
11-66
As shown in Figure 11-9 (F), after the BSC receives an ASS REQ message from the MSC, the measurement of Failed Mode Modify Attempts (Terrestrial Resource Request Failed) is triggered when the request for terrestrial resources fails.
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z
As shown in Figure 11-9 (G), after the BSC receives an ASS REQ message from the MSC in the Mode Modify procedure, the related measurement is triggered when the BSC detects that the CIC is unavailable or is already allocated.
z
After the A interface link is established, the MSC sends an ASS REQ message to the BSC. In the Mode Modify procedure, the measurement of Failed Mode Modify Attempts (A-Interface Failure) is triggered when the MSC sends a CLEAR CMD message or a DISCONNECT message to the BSC because errors occur on the A interface.
z
In the Mode Modify procedure, the MSC sends an ASS REQ message to the BSC. The measurement of Failed Mode Modify Attempts (Clear Commands Sent by MSC) is triggered when the MSC sends a CLEAR CMD message before the BSC responds to the ASS REQ message.
z
As shown in Figure 11-9 (H), the BSC sends a CHAN MODE MODIFY message in the Mode Modify procedure, and then triggers an assignment timer. The related measurement is triggered when the BSC receives a CHAN MODE MODIFY NACK message or when the timer expires.
Figure 11-9 Trigger points of the counters of Failed Mode Modify Attempts per Cell MS
BSC
BTS
MSC ASS REQ
MODE MODIFY
F
MODE MODIFY ACK (MODE MODIFY NACK) CHAN MODE MODIFY
G
CHAN MODE MODIFY NACK H ASS FAIL
Formula None.
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11.9.8 Assignment Procedure Analyzed Measurement per Cell Counter Table 11-26 lists the counters of Assignment Procedure Analyzed Measurement per Cell. Table 11-26 Counters of Assignment Procedure Analyzed Measurement per Cell Number
Counter
1
CA310: Assignment Requests
2
CA313: Successful Assignments
3
RCA313: Success Rate of TCH Assignment
4
CA311: Assignment Commands
5
CA314: Mode Modify Commands
6
CA316: Completed Assignments (Um Interface)
7
CA312: Failed Assignments (Channel Unavailable)
Meaning None.
Trigger Point None.
Formula Assignment Requests = [Assignment Requests (Signaling Channel)] + [Assignment Requests (TCHF Only)] + [Assignment Requests (TCHH Only)] + [Assignment Requests (TCHF Preferred, Channel Type Unchangeable)] + [Assignment Requests (TCHH Preferred, Channel Type Unchangeable)] + [Assignment Requests (TCHF or TCHH, Channel Type Unchangeable)] + [Assignment Requests (TCHF Preferred, Channel Type Changeable)] + [Assignment Requests (TCHH Preferred, Channel Type Changeable)] + [Assignment Requests (TCHF or TCHH, Channel Type Changeable)]
Successful Assignments =
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[Assignment Requests]([Failed Assignments (Signaling Channel)] + [Failed Assignments (MOC) (Including Directed Retry)] + [Failed Assignments (MTC) (Including Directed Retry)] + [Failed Assignments (Emergency Call) (Including Directed Retry)] + [Failed Assignments (Call Re-establishment) (Including Directed Retry)] + [Failed Mode Modify Attempts (MOC) (TCHF)] + [Failed Mode Modify Attempts (MTC) (TCHF)] + [Failed Mode Modify Attempts (Emergency Call) (TCHF)] + [Failed Mode Modify Attempts (Call Re-establishment) (TCHF)] + [Failed Mode Modify Attempts (MOC) (TCHH)] + [Failed Mode Modify Attempts (MTC) (TCHH)] + [Failed Mode Modify Attempts (Call Re-establishment) (TCHH)])
Success Rate of TCH Assignment = [Successful Assignments]*{100}/[Assignment Requests]
Assignment Commands = [Assignment Commands (MOC) (TCHF) (Excluding Directed Retry)] + [Assignment Commands (MTC) (TCHF) (Excluding Directed Retry)] + [Assignment Commands (Emergency Call) (TCHF) (Excluding Directed Retry)] + [Assignment Commands (Call Re-establishment) (TCHF) (Excluding Directed Retry)] + [Assignment Commands (MOC) (TCHH) (Excluding Directed Retry)] + [Assignment Commands (MTC) (TCHH) (Excluding Directed Retry)] + [Assignment Commands (Emergency Call) (TCHH) (Excluding Directed Retry)] + [Assignment Commands (Call Re-establishment) (TCHH) (Excluding Directed Retry)]
Mode Modify Commands = [Mode Modify Commands (MOC) (TCHF)] + [Mode Modify Commands (MTC) (TCHF)] + [Mode Modify Commands (Emergency Call) (TCHF)] + [Mode Modify Commands (Call Re-establishment) (TCHF)] + [Mode Modify Commands (MOC) (TCHH)] +
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[Mode Modify Commands (MTC) (TCHH)] + [Mode Modify Commands (Emergency Call) (TCHH)] + [Mode Modify Commands (Call Re-establishment) (TCHH)]
Completed Assignments (Um Interface) = [Speech Version 1 Completed Assignments (Excluding Directed Retry) (TCHF)] + [Speech Version 2 Completed Assignments (Excluding Directed Retry) (TCHF)] + [Speech Version 3 Completed Assignments (Excluding Directed Retry) (TCHF)] + [Speech Version 1 Completed Assignments (Excluding Directed Retry) (TCHH)] + [Speech Version 2 Completed Assignments (Excluding Directed Retry) (TCHH)] + [Speech Version 3 Completed Assignments (Excluding Directed Retry) (TCHH)]
Failed Assignments (Channel Unavailable) = [Failed Assignments (First Assignment, Channel Unavailable in Assignment Procedure)] + [Failed Assignments (First Assignment, Channel Unavailable in Directed Retry Procedure)] + [Failed Assignments (Reconnection to Old Channels, Channel Unavailable in Assignment)] + [Failed Assignments (Reconnection to Old Channels, Channel Unavailable in Directed Retry)]
11.10 Intra-Cell Handover Measurement per Cell 11.10.1 Overview After seizing a dedicated channel, an MS sends the BSC measurement reports periodically. After receiving the measurement reports, the BSC uses the handover algorithm to decide whether a handover is required or not based on the measurement reports. If a handover is required and the source cell (current cell) is also the target cell, an intra-cell handover is initiated. The Intra-cell handover procedure is as follows: Step 1 The BSC sends a CHAN ACTIV message to the BTS where the target cell is located. This message is used to activate the specified channel in the target cell. Step 2 After receiving a CHAN ACTIV ACK message, the BSC requests for channel resources. If the request succeeds, the BSC sends the MS an HO CMD message, requesting the MS to initiate a handover from the source cell to the target cell. Step 3 The MS sends the target BTS a HO ACC message to attempt to access a new cell. Step 4 The target BTS forwards this message through an HO DETECT message to the BSC and sends a PHY INFO message to the MS.
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Step 5 The MS sends a FIRST SABM frame to the target BTS and the target BTS sends an EST IND message to the BSC, indicating that the MS has successfully accessed the target cell. The MS also sends an HO CMP message to the BSC. Step 6 The BSC sends an HO PERFORMED message to the MSC. ----End Figure 11-10 Intra-cell handover procedure MS
BTS1(CELLO)
BSC
BTS1(CELLO)
MS
MSC
MR FROM MS A CHAN ACTIV CHAN ACTIV ACK HO ACC
HO CMD B
HO DETECT PHY INFO FIRST SABM EST IND HO CMP HO PERFORMED
A: Intra-cell handover request B: Intra-cell handover command
Table 11-27 lists the counter classification of Intra-Cell Handover Requests per Cell. Table 11-27 Counter classification of Intra-Cell Handover Requests per Cell Counter Classification
Section
Intra-Cell Handover Requests per Cell
11.10.2
Intra-Cell Handover Commands per Cell
11.10.3
Failed Intra-Cell Handovers per Cell
11.10.4
Intra-Cell AMR Handover per Cell
11.10.5
Intra-Cell Handover Detection Messages Received by BSC per Cell
11.10.6
Intra-Cell Handover Measurement per Cell
11.10.7
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11.10.2 Intra-Cell Handover Requests per Cell Counter Table 11-28 lists the counters of Internal Intra-Cell Handover Requests per Cell. Table 11-28 Counters of Internal Intra-Cell Handover Requests per Cell Number
Counter
1
H3000: Internal Intra-Cell Handover Requests (SDCCH)
2
H3009: Internal Intra-Cell Handover Requests (TCH)
3
H3003A: Internal Intra-Cell Handover Requests (Dynamic Conversion, TCHF-TCHH)
4
H3003B: Internal Intra-Cell Handover Requests (Dynamic Conversion, TCHH-TCHF)
5
H3004A: Internal Intra-Cell Handover Requests (Dynamic Conversion, TCH-SDCCH)
6
H3004B: Internal Intra-Cell Handover Requests (Dynamic Conversion, SDCCH-TCH)
7
H3002: Internal Intra-Cell Handover Requests (Underlay to Overlay)
8
H3001: Internal Intra-Cell Handover Requests (Overlay to Underlay)
Meaning The counters measure the number of intra-cell handover requests based on handover types and channel types. The counters show the frequency of intra-cell handovers in the current cell. Along with IntraCell Handover Commands per Cell and Failed Intra-Cell Handovers per Cell, the counters show the performance of intra-cell handovers. The intra-cell handover is of the following types: z
Intra-cell handover in normal conditions
z
Intra-cell handover caused by dynamic channel conversion
z
Intra-cell handover in concentric cells
The channel involved in the measurement is of the following types: z
SDCCH
z
TCH
The dynamic channel conversion is of the following types:
11-72
z
TCHF to TCHH (TCHF-TCHH)
z
TCHH to TCHF (TCHH-TCHF)
z
TCH to SDCCH (TCH-SDCCH)
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SDCCH to TCH (SDCCH-TCH)
The concentric cell handover is of the following types: z
Underlaid subcell to overlaid subcell (Underlay to Overlay)
z
Overlaid subcell to underlaid subcell (Overlay to Underlay) In the internal handover procedure, the BSC selects the idle neighbor cell (the neighbor cell in the same BSC but different BM is assumed to be idle) as the preferred target cell. If all the neighbor cells of the source cell are busy, the first cell on the list of candidate neighbor cells is selected. The handover is performed even if this cell is busy. If the selected neighbor cell is also the source cell, the related counter is measured. In the concentric cell handover (also a kind of intra-cell handover), no handover is performed if the target underlaid subcell or overlaid subcell is congested. No counters will be measured.
Trigger Point As shown in Figure 11-10 (A), the measurement is triggered when the BSC decides that an intra-cell handover is required based on measurement reports. The measurement is based on the handover type and the channel type.
Formula None.
11.10.3 Intra-Cell Handover Commands per Cell Counter Table 11-29 lists the counters of Intra-Cell Handover Commands per Cell. Table 11-29 Counters of Intra-Cell Handover Commands per Cell Number
Counter
1
H3010: Internal Intra-Cell Handover Commands (SDCCH)
2
H3017: Internal Intra-Cell Handover Commands (TCHF)
3
H3018: Internal Intra-Cell Handover Commands (TCHH)
4
H3013A: Internal Intra-Cell Handover Commands (Dynamic Conversion, TCHF-TCHH)
5
H3013B: Internal Intra-Cell Handover Commands (Dynamic Conversion, TCHH-TCHF)
6
H3014A: Internal Intra-Cell Handover Commands (Dynamic Conversion, TCH-SDCCH)
7
H3014B: Internal Intra-Cell Handover Commands (Dynamic Conversion, SDCCH-TCH)
8
H3012: Internal Intra-Cell Handover Commands (Underlay to Overlay)
9
H3011: Internal Intra-Cell Handover Commands (Overlay to Underlay)
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Meaning The counters measure the number of intra-cell handover commands based on handover types and channel types. Along with Intra-Cell Handover Requests per Cell and Failed Intra-Cell Handovers per Cell, the counters show the performance of intra-cell handovers. The intra-cell handover is of the following types: z
Intra-cell handover requests in normal conditions
z
Intra-cell handover requests caused by dynamic channel conversion
z
Intra-cell handover requests in concentric cells
The channel involved in the measurement is of the following types: z
SDCCH
z
TCHF
z
TCHH
The dynamic channel conversion is of the following types: z
TCHF to TCHH (TCHF-TCHH)
z
TCHH to TCHF (TCHH-TCHF)
z
TCH to SDCCH (TCH-SDCCH)
z
SDCCH to TCH (SDCCH-TCH)
The concentric cell handover is of the following types: z
Underlaid subcell to overlaid subcell (Underlay to Overlay)
z
Overlaid subcell to underlaid subcell (Overlay to Underlay)
Trigger Point As shown in Figure 11-10 (B), the measurement is triggered when the BSC sends an HO CMD message through the source cell to the MS. The measurement is based on the handover type and the channel type.
Formula None.
11.10.4 Failed Intra-Cell Handovers per Cell Counter Table 11-30 lists the counters of Failed Intra-Cell Handovers per Cell. Table 11-30 Counters of Failed Intra-Cell Handovers per Cell
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Number
Counter
1
H3020: Failed Internal Intra-Cell Handovers (SDCCH)
2
H3029: Failed Internal Intra-Cell Handovers (TCH)
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Number
Counter
3
H3020A: Failed Internal Intra-Cell Handovers (Channel Unavailable) (SDCCH)
4
H3029A: Failed Internal Intra-Cell Handovers (Channel Unavailable) (TCH)
5
H302B: Failed Internal Intra-Cell Handovers (Terrestrial Resource Request Failed)
6
H302G: Failed Internal Intra-Cell Handovers (A-Interface Failure)
7
H3020C: Failed Internal Intra-Cell Handovers (Timer Expired) (SDCCH)
8
H3027Cb: Failed Internal Intra-Cell Handovers (Timer Expired) (TCHF) (Signaling Channel)
9
H3028Cb: Failed Internal Intra-Cell Handovers (Timer Expired) (TCHH) (Signaling Channel)
10
H3027Ca: Failed Internal Intra-Cell Handovers (Timer Expired) (TCHF) (Traffic Channel)
11
H3028Ca: Failed Internal Intra-Cell Handovers (Timer Expired) (TCHH) (Traffic Channel)
12
H302Da: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Unspecified)
13
H302Db: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Channel Unacceptable)
14
H302Dc: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Timer Expired)
15
H302Dd: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, No Activity on the Radio Path)
16
H302De: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Preemptive Release)
17
H302Df: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Handover Failed, Timing Advance out of Range)
18
H302Dg: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Channel Mode Unavailable)
19
H302Dh: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Frequency Unavailable)
20
H302Di: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Call Already Cleared)
21
H302Dj: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Semantically Incorrect Message)
22
H302Dk: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Invalid Mandatory Information)
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Number
Counter
23
H302Dl: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Message Type Non-existent or Not Implemented)
24
H302Dm: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Message Type Not Compatible with Protocol State)
25
H302Dn: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Conditional IE Error)
26
H302Do: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (No Cell Allocation Available)
27
H302Dp: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Protocol Error Unspecified)
28
H302Dq: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Other Causes)
29
H3022A: Failed Internal Intra-Cell Handovers (Channel Unavailable) (Underlay to Overlay)
30
H3021A: Failed Internal Intra-Cell Handovers (Channel Unavailable) (Overlay to Underlay)
31
H3022M: Failed Internal Intra-Cell Handovers (Other Causes) (Underlay to Overlay)
32
H3021M: Failed Internal Intra-Cell Handovers (Other Causes) (Overlay to Underlay)
33
H3023A: Failed Internal Intra-Cell Handovers (Dynamic Conversion, TCHFTCHH)
34
H3023B: Failed Internal Intra-Cell Handovers (Dynamic Conversion, TCHHTCHF)
35
H3024A: Failed Internal Intra-Cell Handovers (Dynamic Conversion, TCHSDCCH)
36
H3024B: Failed Internal Intra-Cell Handovers (Dynamic Conversion, SDCCHTCH)
Meaning The counters measure the number of failed intra-cell handovers based on handover types, channel types, and failure causes. Along with Intra-Cell Handover Requests per Cell and Intra-Cell Handover Commands per Cell, the counters show the performance of intra-cell handovers. The intra-cell handover is of the following types:
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z
Intra-cell handover requests in normal conditions
z
Intra-cell handover requests caused by dynamic channel conversion
z
Intra-cell handover requests in concentric cells
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The channel involved in the measurement is of the following types: z
SDCCH
z
TCHF
z
TCHH
The failure causes of intra-cell handovers include the following: z
Channel unavailable
z
Terrestrial resource request failed
z
A-interface failure
z
Clear commands sent by MSC
z
Timer expired
z
Reconnection to old channels
The dynamic channel conversion is of the following types: z
TCHF to TCHH (TCHF-TCHH)
z
TCHH to TCHF (TCHH-TCHF)
z
TCH to SDCCH (TCH-SDCCH)
z
SDCCH to TCH (SDCCH-TCH)
The concentric cell handover is of the following types: z
Underlaid subcell to overlaid subcell (Underlay to Overlay)
z
Overlaid subcell to underlaid subcell (Overlay to Underlay)
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Trigger Point Figure 11-11 shows the trigger points of the counters of Failed Intra-Cell Handovers per Cell. Figure 11-11 Trigger points of the counters of Failed Intra-Cell Handovers per Cell MS
BTS1(CELLO)
BSC
BTS1(CELLO)
MS
MSC
MR FROM MS A CHAN ACTIV CHAN ACTIV ACK In the intra-cell handover procedure
B HO ACC
HO CMD HO DETECT
PHY INFO FIRST SABM EST IND
C
TIME OUT F
D HO FAIL E
G
H
HO CMP HO PERFORMED
A: Failed Intra-Cell Handovers (Channel Unavailable) B: Failed Intra-Cell Handovers (Terrestrial Resource Request Failed) C: Failed Intra-Cell Handovers (A-Interface Failure) D: Failed Intra-Cell Handovers (Clear Commands Sent by MSC) E: Failed Intra-Cell Handovers F: Failed Intra-Cell Handovers (Timer Expired) G: Failed Intra-Cell Handovers (Reconnection to Old Channels) H: Failed Intra-Cell Handovers (Other Causes)
The trigger points of the counters are as follows: z
Failed Intra-Cell Handovers As shown in Figure 11-11, the measurement is triggered when the intra-cell handover fails before the handover completion timer expires. The measurement is based on the channel type. The channel involved in the measurement is of the following types: −
SDCCH
−
TCH
The dynamic channel conversion is of the following types: −
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TCHF to TCHH (TCHF-TCHH)
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−
TCHH to TCHF (TCHH-TCHF)
−
TCH to SDCCH (TCH-SDCCH)
−
SDCCH to TCH (SDCCH-TCH)
11 Call Measurement
Failed Intra-Cell Handovers (Channel Unavailable) As shown in Figure 11-11, the measurement is triggered when a channel request fails because the target cell has no channel available. The measurement is based on the handover type and the channel type. The intra-cell handover is of the following types: −
Intra-cell handover requests in normal conditions
−
Intra-cell handover requests in concentric cells.
The channel involved in the measurement is of the following types: −
SDCCH
−
TCHF
−
TCHH
The concentric cell handover is of the following types:
z
−
Underlaid subcell to overlaid subcell (Underlay to Overlay)
−
Overlaid subcell to underlaid subcell (Overlay to Underlay)
Failed Intra-Cell Handovers (Terrestrial Resource Request Failed) As shown in Figure 11-11, the measurement is triggered when the BSC net-drive fails.
z
Failed Intra-Cell Handovers (A-Interface Failure) As shown in Figure 11-11, the measurement is triggered when the BSC receives an Ainterface failure message before the MS sends an HO CMP message to the BSC.
z
Failed Intra-Cell Handovers (Clear Commands Sent by MSC) As shown in Figure 11-11, the measurement is triggered when the BSC receives a CLR CMD message before the MS sends an HO CMP message to the BSC.
z
Failed Intra-Cell Handovers (Timer Expired) As shown in Figure 11-11, the BSC sends an HO CMD message to the MS and starts a timer to wait for an HO CMP message. The measurement is triggered when the timer expires. The measurement is based on the channel type. The channel involved in the measurement is of the following types:
z
−
SDCCH
−
TCHF
−
TCHH
Failed Intra-Cell Handovers (Reconnection to Old Channels) As shown in Figure 11-11, BSC sends an HO CMD message to the MS and starts a timer to wait for an HO CMP message. Before the timer expires, the MS reconnects to the old channel and sends the BSC an HO FAIL message on the old channel. The measurement is triggered when the BSC receives the HO FAIL message. The measurement is based on the failure cause carried in the message. The message carries any of the following failure causes: Abnormal release, unspecified Abnormal release, channel unacceptable Abnormal release, timer expired Abnormal release, no activity on the radio path
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Preemptive release Handover failed, timing advance out of range Channel mode unavailable Frequency unavailable Call already cleared Semantically incorrect message Invalid mandatory information Message type non-existent or not implemented Message type not compatible with protocol state Conditional IE error No cell allocation available Protocol error unspecified Other causes z
Failed Intra-Cell Handovers (Concentric Cell) As shown in Figure 11-11, after the BSC sends an HO CMD message to the MS, the measurement is triggered when the BSC receives an HO FAIL message before receiving an HO CMP message from the MS. The HO FAIL message carries any cause except for those described previously. The measurement is based on the handover direction (underlaid subcell to overlaid subcell, overlaid subcell to underlaid subcell).
Formula None.
11.10.5 Intra-Cell AMR Handover per Cell Counter Table 11-29 lists the counters of Intra-Cell AMR Handover per Cell. Table 11-31 Counters of Intra-Cell AMR Handover per Cell
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Number
Counter
1
H3055A: Internal Intra-Cell Handovers Not Initiated (AMR) (TCHF-TCHH)
2
H3055B: Internal Intra-Cell Handovers Not Initiated (AMR) (TCHH-TCHF)
3
H3005A: Internal Intra-Cell Handover Requests (AMR) (TCHF-TCHH)
4
H3005B: Internal Intra-Cell Handover Requests (AMR) (TCHH-TCHF)
5
H3015A: Internal Intra-Cell Handover Commands (AMR) (TCHF-TCHH)
6
H3015B: Internal Intra-Cell Handover Commands (AMR) (TCHH-TCHF)
7
H3025A: Failed Internal Intra-Cell Handovers (AMR) (TCHF-TCHH)
8
H3025B: Failed Internal Intra-Cell Handovers (AMR) (TCHH-TCHF)
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Meaning For an Adaptive Multi-Rate (AMR) call, when the BSC decides that an intra-cell handover (TCHF to TCHH) is required based on the handover algorithm, the BSC ignores the handover indication and measures Internal Intra-Cell Handovers Not Initiated (AMR) (TCHF-TCHH) if the MSC does not allow the conversion of channel types. For an AMR call, when the BSC decides that an intra-cell handover (TCHH to TCHF) is required based on the handover algorithm, the BSC ignores the handover indication and measures Internal Intra-Cell Handovers Not Initiated (AMR) (TCHH-TCHF) if the MSC does not allow the conversion of channel types. For an AMR call, when the BSC decides that an intra-cell handover (TCHF to TCHH) is required based on the handover algorithm, the BSC measures Internal Intra-Cell Handover Requests (AMR) (TCHF-TCHH) if the handover is allowed. For an AMR call, when the BSC decides that an intra-cell handover (TCHH to TCHF) is required based on the handover algorithm, the BSC measures Internal Intra-Cell Handover Requests (AMR) (TCHH-TCHF) if the handover is allowed. For an AMR call, if the BSC decides that an intra-cell handover (TCHF to TCHH) is required based on the handover algorithm, the BSC measures Internal Intra-Cell Handover Commands (AMR) (TCHF-TCHH) when the handover is initiated and a handover command is sent. For an AMR call, if the BSC decides that an intra-cell handover (TCHH to TCHF) is required based on the handover algorithm, the BSC measures Internal Intra-Cell Handover Commands (AMR) (TCHH-TCHF) when the handover is initiated and a handover command is sent. For an AMR call, if the BSC decides that an intra-cell handover (TCHF to TCHH) is required based on the handover algorithm, the BSC measures Failed Internal Intra-Cell Handovers (AMR) (TCHF-TCHH) when the handover is initiated but the handover fails due to a certain cause. For an AMR call, if the BSC decides that an intra-cell handover (TCHH to TCHF) is required based on the handover algorithm, the BSC measures Failed Internal Intra-Cell Handovers (AMR) (TCHH-TCHF) when the handover is initiated but the handover fails due to a certain cause. The AMR is a kind of speech codec algorithm. It can improve the speech quality by adjusting the encoding rate based on the radio environment. To control the call performance in a flexible way and to maximize the network capacity, the BSC needs a handover algorithm as follows: z
If an AMR call seizes a full rate channel and its RQI is always higher than the defined threshold of the handover from the TCHF to the TCHH in a period of time, the handover from the TCHF to the TCHH is triggered.
z
If an AMR call seizes a half rate channel and its RQI is always lower than the defined threshold of the handover from the TCHH to the TCHF in a period of time, the handover from the TCHH to the TCHF is triggered.
z
The algorithm is controlled by the switches of both the intra-cell handover permit and the intra-cell full rate–half rate handover permit. Because the BTS reports the RQI for only AMR calls, the AMR handover is used for only AMR calls.
Trigger Point For the description of the trigger points of the counters, refer to the trigger points of the common handovers.
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Formula None.
11.10.6 Intra-Cell Handover Detection Messages Received by BSC per Cell Counter Table 11-32 lists the counters of Intra-Cell Handover Detection Messages Received by BSC per Cell. Table 11-32 Counters of Intra-Cell Handover Detection Messages Received by BSC per Cell Number
Counter
1
H3040: Internal Intra-Cell Handover Detection Messages Received by BSC (SDCCH)
2
H3047: Internal Intra-Cell Handover Detection Messages Received by BSC (TCHF)
3
H3048: Internal Intra-Cell Handover Detection Messages Received by BSC (TCHH)
Meaning The counters measure the number of times the BSC receives from the BTS an HO DETECT message in the target cell (current cell). The measurement is based on the channel type. The channel type consists of SDCCH, TCHF, and TCHH.
Trigger Point As shown in Figure 11-11, the measurement is triggered when the BSC receives an HO DETECT message in the target cell (current cell). The measurement is based on the channel type.
Formula None.
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11.10.7 Intra-Cell Handover Measurement per Cell Counter Table 11-33 lists the counters of Intra-Cell Handover Measurement per Cell. Table 11-33 Counters of Intra-Cell Handover Measurement per Cell Number
Counter
1
CH300: Internal Intra-Cell Handover Requests
2
CH303: Successful Internal Intra-Cell Handovers
3
TH303: Success Rate of Internal Intra-Cell Handover
4
TH3032: Success Rate of Internal Intra-Cell Handover (Underlay to Overlay)
5
TH3031: Success Rate of Internal Intra-Cell Handover (Overlay to Underlay)
6
CH301: Internal Intra-Cell Handover Commands
7
CH304: Internal Intra-Cell Handover Detection Messages Received by BSC
8
CH302: Failed Internal Intra-Cell Handovers
9
CH302A: Failed Internal Intra-Cell Handovers (Channel Unavailable)
10
CH302C: Failed Internal Intra-Cell Handovers (Timer Expiry)
11
CH302D: Failed Internal Intra-Cell Handovers (Reconnection to Old Channels)
12
CH3022: Failed Internal Intra-Cell Handovers (Underlay to Overlay)
13
CH3021: Failed Internal Intra-Cell Handovers (Overlay to Underlay)
14
TH3033A: Success Rate of Internal Intra-Cell Handover (Dynamic Conversion, TCHF-TCHH)
15
TH3033B: Success Rate of Internal Intra-Cell Handover (Dynamic Conversion, TCHH-TCHF)
16
TH3034A: Success Rate of Internal Intra-Cell Handover (Dynamic Conversion, TCH-SDCCH)
17
TH3034B: Success Rate of Internal Intra-Cell Handover (Dynamic Conversion, SDCCH-TCH)
18
TH3035A: Success Rate of Internal Intra-Cell Handover (AMR) (TCHFTCHH)
19
TH3035B: Success Rate of Internal Intra-Cell Handover (AMR) (TCHHTCHF)
20
CH3032: Successful Internal Intra-Cell Handovers (Underlay to Overlay)
21
CH3031: Successful Internal Intra-Cell Handovers (Overlay to Underlay)
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Number
Counter
22
CH3033A: Successful Internal Intra-Cell Handovers (Dynamic Conversion, TCHF-TCHH)
23
CH3033B: Successful Internal Intra-Cell Handovers (Dynamic Conversion, TCHH-TCHF)
24
CH3034A: Successful Internal Intra-Cell Handovers (Dynamic Conversion, TCH-SDCCH)
25
CH3034B: Successful Internal Intra-Cell Handovers (Dynamic Conversion, SDCCH-TCH)
26
CH3035A: Successful Internal Intra-Cell Handovers (AMR) (TCHF-TCHH)
27
CH3035B: Successful Internal Intra-Cell Handovers (AMR) (TCHH-TCHF)
Meaning None.
Trigger Point None.
Formula Internal Intra-Cell Handover Requests = [Internal Intra-Cell Handover Requests (SDCCH)] + [Internal Intra-Cell Handover Requests (TCH)]
Successful Internal Intra-Cell Handovers = [Internal Intra-Cell Handover Requests (SDCCH)] + [Internal Intra-Cell Handover Requests (TCH)]-[Failed Internal Intra-Cell Handovers (SDCCH)]-[Failed Internal Intra-Cell Handovers (TCH)]
SUCCESS RATE OF INTERNAL INTRA-CELL HANDOVER = [Successful Internal Intra-Cell Handovers]*{100}/[Internal Intra-Cell Handover Requests] SUCCESS RATE OF INTERNAL INTRA-CELL HANDOVER (Underlay to Overlay) = [Successful Internal Intra-Cell Handovers (Underlay to Overlay)]*{100}/[Internal Intra-Cell Handover Requests (Underlay to Overlay)]
SUCCESS RATE OF INTERNAL INTRA-CELL HANDOVER (Overlay to Underlay) = [Successful Internal Intra-Cell Handovers (Overlay to Underlay)]*{100}/[Internal Intra-Cell Handover Requests (Overlay to Underlay)]
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Internal Intra-Cell Handover Commands = [Internal Intra-Cell Handover Commands (SDCCH)] + [Internal Intra-Cell Handover Commands (TCHF)] + [Internal Intra-Cell Handover Commands (TCHH)]
Internal Intra-Cell Handover Detection Messages Received by BSC = [Internal Intra-Cell Handover Detection Messages Received by BSC (SDCCH)] + [Internal Intra-Cell Handover Detection Messages Received by BSC (TCHF)] + [Internal Intra-Cell Handover Detection Messages Received by BSC (TCHH)]
Failed Internal Intra-Cell Handovers = [Failed Internal Intra-Cell Handovers (SDCCH)] + [Failed Internal Intra-Cell Handovers (TCH)]
Failed Internal Intra-Cell Handovers (Channel Unavailable) = [Failed Internal Intra-Cell Handovers (Channel Unavailable) (SDCCH)] + [Failed Internal Intra-Cell Handovers (Channel Unavailable) (TCH)]
Failed Internal Intra-Cell Handovers (Timer Expired) = [Failed Internal Intra-Cell Handovers (Timer Expired) (SDCCH)] + [Failed Internal Intra-Cell Handovers (Timer Expired) (TCHF) (Signaling Channel)] + [Failed Internal Intra-Cell Handovers (Timer Expired) (TCHH) (Signaling Channel)] + [Failed Internal Intra-Cell Handovers (Timer Expired) (TCHF) (Traffic Channel)] + [Failed Internal Intra-Cell Handovers (Timer Expired) (TCHH) (Traffic Channel)]
Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) = [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Unspecified)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Channel Unacceptable)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Timer Expired)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, No Activity on the Radio Path)] +
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[Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Preemptive Release)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Handover Failed, Timing Advance out of Range)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Channel Mode Unavailable)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Frequency Unavailable)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Call Already Cleared)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Semantically Incorrect Message)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Invalid Mandatory Information)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Message Type Nonexistent or Not Implemented)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Message Type Not Compatible with Protocol State)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Conditional IE Error)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (No Cell Allocation Available)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Protocol Error Unspecified)] + [Failed Internal Intra-Cell Handovers (Reconnection to Old Channels) (Other Causes)]
Failed Internal Intra-Cell Handovers (Underlay to Overlay) = [Failed Internal Intra-Cell Handovers (Channel Unavailable) (Underlay to Overlay)] + [Failed Internal Intra-Cell Handovers (Other Causes) (Underlay to Overlay)]
Failed Internal Intra-Cell Handovers (Overlay to Underlay) = [Failed Internal Intra-Cell Handovers (Channel Unavailable) (Overlay to Underlay)] + [Failed Internal Intra-Cell Handovers (Other Causes) (Overlay to Underlay)]
Success Rate of Internal Intra-Cell Handover (Dynamic Conversion, TCHF-TCHH) = [Successful Internal Intra-Cell Handovers (Dynamic Conversion, TCHFTCHH)]*{100}/[Internal Intra-Cell Handover Requests (Dynamic Conversion, TCHF-TCHH)]
Success Rate of Internal Intra-Cell Handover (Dynamic Conversion, TCHH-TCHF) =
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[Successful Internal Intra-Cell Handovers (Dynamic Conversion, TCHHTCHF)]*{100}/[Internal Intra-Cell Handover Requests (Dynamic Conversion, TCHH-TCHF)]
Success Rate of Internal Intra-Cell Handover (Dynamic Conversion, TCH-SDCCH) = Successful Internal Intra-Cell Handovers (Dynamic Conversion, TCHSDCCH)]*{100}/[Internal Intra-Cell Handover Requests (Dynamic Conversion, TCHSDCCH)]
Success Rate of Internal Intra-Cell Handover (Dynamic Conversion, SDCCH-TCH) = [Successful Internal Intra-Cell Handovers (Dynamic Conversion, SDCCHTCH) ]*{100}/[ Internal Intra-Cell Handover Requests (Dynamic Conversion, SDCCHTCH) ]
Success Rate of Internal Intra-Cell Handover (AMR) (TCHF-TCHH) = [Successful Internal Intra-Cell Handovers (AMR) (TCHF-TCHH)]*{100}/[Internal Intra-Cell Handover Requests (AMR) (TCHF-TCHH)]
Success Rate of Internal Intra-Cell Handover (AMR) (TCHH-TCHF) = [Successful Internal Intra-Cell Handovers (AMR) (TCHH-TCHF)]*{100}/[Internal Intra-Cell Handover Requests (AMR) (TCHH-TCHF)] Successful Internal Intra-Cell Handovers (Underlay to Overlay) = [Internal Intra-Cell Handover Requests (Underlay to Overlay)]-[Failed Internal Intra-Cell Handovers (Channel Unavailable) (Underlay to Overlay)]-[Failed Internal Intra-Cell Handovers (Other Causes) (Underlay to Overlay)]
Successful Internal Intra-Cell Handovers (Overlay to Underlay) = [Internal Intra-Cell Handover Requests (Overlay to Underlay)]-[Failed Internal Intra-Cell Handovers (Channel Unavailable) (Overlay to Underlay)]-[Failed Internal Intra-Cell Handovers (Other Causes) (Overlay to Underlay)]
Successful Internal Intra-Cell Handovers (Dynamic Conversion, TCHF-TCHH) = [Internal Intra-Cell Handover Requests (Dynamic Conversion, TCHF-TCHH)]- [Failed Internal Intra-Cell Handovers (Dynamic Conversion, TCHF-TCHH) ]
Successful Internal Intra-Cell Handovers (Dynamic Conversion, TCHH-TCHF) = [Internal Intra-Cell Handover Requests (Dynamic Conversion, TCHH-TCHF)]- [Failed Internal Intra-Cell Handovers (TCHH-TCHF)]
Successful Internal Intra-Cell Handovers (Dynamic Conversion, TCH-SDCCH) =
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[Internal Intra-Cell Handover Requests (Dynamic Conversion, TCH-SDCCH) ]-[ Failed Internal Intra-Cell Handovers (Dynamic Conversion, TCH-SDCCH) ]
Successful Internal Intra-Cell Handovers (Dynamic Conversion, SDCCH-TCH) = [Internal Intra-Cell Handover Requests (Dynamic Conversion, SDCCH-TCH)]- [Failed Internal Intra-Cell Handovers (Dynamic Conversion, SDCCH-TCH) ]
Successful Internal Intra-Cell Handovers (AMR) (TCHF-TCHH) = [Internal Intra-Cell Handover Requests (AMR) (TCHF-TCHH)]- [Failed Internal Intra-Cell Handovers (AMR) (TCHF-TCHH)]
Successful Internal Intra-Cell Handovers (AMR) (TCHH-TCHF) = [Internal Intra-Cell Handover Requests (AMR) (TCHH-TCHF)]- [Failed Internal Intra-Cell Handovers (AMR) (TCHH-TCHF)]
11.11 Incoming Internal Inter-Cell Handover Measurement per Cell 11.11.1 Overview After an MS seizes a dedicated channel, it sends measurement reports to the BSC periodically. After receiving the measurement reports, the BSC uses the handover algorithm to decide whether a handover is required or not on the basis of the factors such as the cell load, concentric cell, signal interference, and measurement reports. If a handover is required and the source cell (current cell) and the target cell are two cells in a BSC, an internal inter-cell handover is initiated. The internal inter-cell handover procedure is as follows: Step 1 The BSC sends a CHAN ACTIV message to the BTS where the target cell is located. This message is used to activate the specified channel in the target cell. Step 2 After receiving a CHAN ACTIV ACK message, the BSC requests for channel resources. If the request succeeds, the BSC sends the MS an HO CMD message, requesting the MS through the source cell to initiate a handover from the source cell to the target cell. Step 3 The MS sends the target BTS a HO ACC message to attempt to access a new cell. Step 4 The target BTS forwards this message through an HO DETECT message to the BSC and sends a PHY INFO message to the MS. Step 5 The MS sends a FIRST SABM frame to the target BTS and the target BTS sends the BSC an EST IND message, indicating that the MS has successfully accessed the target cell. The MS also sends an HO CMP message to the BSC. Step 6 The BSC sends an HO PERFORMED message to the MSC. ----End
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The incoming internal inter-cell handover is part of the internal inter-cell handover. It refers to the internal inter-cell handover procedure performed in the target cell (the cell where the MS is located after the handover). The source cell (the cell where the MS is located before the handover) and the target cell can be two cells in a BTS or two cells in two BTSs controlled by one BSC. Figure 11-12 shows the incoming internal inter-cell handover procedure. Figure 11-12 Incoming internal inter-cell handover MS
BTS1(CELL1)
BSC
BTS1(CELLO)
MS
MSC
MR FROM MS A CHAN ACTIV CHAN ACTIV ACK HO ACC
HO CMD B
HO DETECT PHY INFO FIRST SABM EST IND HO CMP HO PERFORMED
A: Incoming Internal Inter-Cell Handover Requests B: Incoming Internal Inter-Cell Handover Responses
Table 11-34 lists the counter classification of Incoming Internal Inter-Cell Handover Measurement per Cell. Table 11-34 Counter classification of Incoming Internal Inter-Cell Handover Measurement per Cell Counter Classification
Section
Incoming Internal Inter-Cell Handover Requests per Cell
11.11.2
Incoming Internal Inter-Cell Handover Responses per Cell
11.11.3
Failed Incoming Internal Inter-Cell Handovers per Cell
11.11.4
Incoming Internal Inter-Cell Handover Detection Messages Received by BSC per Cell
11.11.5
Incoming Internal Inter-Cell Handover Analyzed Measurement per Cell
11.11.6
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11.11.2 Incoming Internal Inter-Cell Handover Requests per Cell Counter Table 11-35 lists the counters of Incoming Internal Inter-Cell Handover Requests per Cell. Table 11-35 Counters of Incoming Internal Inter-Cell Handover Requests per Cell Number
Counter
1
H3200W: Incoming Internal Inter-Cell Handover Requests (SDCCH) (900/850-900/850)
2
H3200X: Incoming Internal Inter-Cell Handover Requests (SDCCH) (1800/1900-1800/1900)
3
H3200Y: Incoming Internal Inter-Cell Handover Requests (SDCCH) (900/8501800/1900)
4
H3200Z: Incoming Internal Inter-Cell Handover Requests (SDCCH) (1800/1900-900/850)
5
H3209W: Incoming Internal Inter-Cell Handover Requests (TCH) (900/850900/850)
6
H3209X: Incoming Internal Inter-Cell Handover Requests (TCH) (1800/19001800/1900)
7
H3209Y: Incoming Internal Inter-Cell Handover Requests (TCH) (900/8501800/1900)
8
H3209Z: Incoming Internal Inter-Cell Handover Requests (TCH) (1800/1900900/850)
Meaning The BSC uses the handover algorithm to decide whether a handover is required or not based on the measurement reports. If a handover is required and the source cell (current cell) and the target cell are two different cells controlled by a BSC, the BSC initiates an internal inter-cell handover. The counters measure the number of internal inter-cell handovers in the target cell. The measurement is based on the channel type and the crossing of frequency bands. Along with Incoming Internal Inter-Cell Handover Responses per Cell and Failed Incoming Internal Inter-Cell Handover, the counters show the performance of incoming internal intercell handovers. Along with Outgoing Internal Inter-Cell Handover Measurement per Cell, the counters show the performance of internal inter-cell handovers. The channel involved in the measurement is of the following types: z
SDCCH
z
TCH
The crossing of frequency bands is of the following types:
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900/850 to 900/850
z
1800/1900 to 1800/1900
z
900/850 to 1800/1900
z
1800/1900 to 900/850
11 Call Measurement
Trigger Point As shown in Figure 11-12 (A), the measurement is triggered when the BSC decides to initiate an incoming internal inter-cell handover. The measurement is based on the channel type and the crossing of frequency bands.
Formula None.
11.11.3 Incoming Internal Inter-Cell Handover Responses per Cell Counter Table 11-36 lists the counters of Incoming Internal Inter-Cell Handover Responses per Cell. Table 11-36 Counters of Incoming Internal Inter-Cell Handover Responses per Cell Number
Counter
1
H3210W: Incoming Internal Inter-Cell Handover Responses (SDCCH) (900/850-900/850)
2
H3210X: Incoming Internal Inter-Cell Handover Responses (SDCCH) (1800/1900-1800/1900)
3
H3210Y: Incoming Internal Inter-Cell Handover Responses (SDCCH) (900/850-1800/1900)
4
H3210Z: Incoming Internal Inter-Cell Handover Responses (SDCCH) (1800/1900-900/850)
5
H3217W: Incoming Internal Inter-Cell Handover Responses (TCHF) (900/850-900/850)
6
H3217X: Incoming Internal Inter-Cell Handover Responses (TCHF) (1800/1900-1800/1900)
7
H3217Y: Incoming Internal Inter-Cell Handover Responses (TCHF) (900/850-1800/1900)
8
H3217Z: Incoming Internal Inter-Cell Handover Responses (TCHF) (1800/1900-900/850)
9
H3218W: Incoming Internal Inter-Cell Handover Responses (TCHH) (900/850-900/850)
10
H3218X: Incoming Internal Inter-Cell Handover Responses (TCHH) (1800/1900-1800/1900)
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Number
Counter
11
H3218Y: Incoming Internal Inter-Cell Handover Responses (TCHH) (900/850-1800/1900)
12
H3218Z: Incoming Internal Inter-Cell Handover Responses (TCHH) (1800/1900-900/850)
Meaning The counters measure the number of incoming internal inter-cell handover responses of the target cell. The BSC sends the MS an HO CMD message in the source cell. This message is regarded as a handover response of the target cell to the MS. The measurement is based on the channel type and the crossing of frequency bands. Along with Incoming Internal Inter-Cell Handover Requests per Cell, Intra-Cell Handover Requests per Cell, and Failed Incoming Internal Inter-Cell Handovers per Cell, the counters show the performance of incoming internal inter-cell handovers. Along with Outgoing Internal Inter-Cell Handover Measurement per Cell, the counters show the performance of internal inter-cell handovers. The channel involved in the measurement is of the following types: z
SDCCH
z
TCHF
z
TCHH
The crossing of frequency bands is of the following types: z
900/850 to 900/850
z
1800/1900 to 1800/1900
z
900/850 to 1800/1900
z
1800/1900 to 900/850
Trigger Point As shown in Figure 11-12 (B), the measurement is triggered when the BSC sends the MS an HO CMD message in the source cell. The measurement is based on the channel type and the crossing of frequency bands.
Formula None.
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11.11.4 Failed Incoming Internal Inter-Cell Handovers per Cell Counter Table 11-37 lists the counters of Failed Incoming Internal Inter-Cell Handovers per Cell. Table 11-37 Counters of Failed Incoming Internal Inter-Cell Handovers per Cell Number
Counter
1
H3220W: Failed Incoming Internal Inter-Cell Handovers (SDCCH) (900/850-900/850)
2
H3220X: Failed Incoming Internal Inter-Cell Handovers (SDCCH) (1800/1900-1800/1900)
3
H3220Y: Failed Incoming Internal Inter-Cell Handovers (SDCCH) (900/8501800/1900)
4
H3220Z: Failed Incoming Internal Inter-Cell Handovers (SDCCH) (1800/1900-900/850)
5
H3229W: Failed Incoming Internal Inter-Cell Handovers (TCH) (900/850900/850)
6
H3229X: Failed Incoming Internal Inter-Cell Handovers (TCH) (1800/19001800/1900)
7
H3229Y: Failed Incoming Internal Inter-Cell Handovers (TCH) (900/8501800/1900)
8
H3229Z: Failed Incoming Internal Inter-Cell Handovers (TCH) (1800/1900900/850)
9
H3220A: Failed Incoming Internal Inter-Cell Handovers (Channel Unavailable) (SDCCH)
10
H3229A: Failed Incoming Internal Inter-Cell Handovers (Channel Unavailable) (TCH)
11
H322B: Failed Incoming Internal Inter-Cell Handovers (Terrestrial Resource Request Failed)
12
H322D: Failed Incoming Internal Inter-Cell Handovers (Reconnection to Old Channels)
13
H322G: Failed Incoming Internal Inter-Cell Handovers (A-Interface Failure)
14
H3220C: Failed Incoming Internal Inter-Cell Handovers (Timer Expired) (SDCCH)
15
H3227Cb: Failed Incoming Internal Inter-Cell Handovers (Timer Expired) (TCHF) (Signaling Channel)
16
H3228Cb: Failed Incoming Internal Inter-Cell Handovers (Timer Expired) (TCHH) (Signaling Channel)
17
H3227Ca: Failed Incoming Internal Inter-Cell Handovers (Timer Expired) (TCHF) (Traffic Channel)
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Number
Counter
18
H3228Ca: Failed Incoming Internal Inter-Cell Handovers (Timer Expired) (TCHH) (Traffic Channel)
Meaning The counters measure the number of failed incoming internal inter-cell handovers in the target cell due to different causes. The measurement is based on the channel type, the failure cause, and the crossing of frequency bands. Along with Incoming Internal Inter-Cell Handover Requests per Cell and Incoming Internal Inter-Cell Handover Responses per Cell, the counters show the performance of incoming internal inter-cell handovers. Along with Outgoing Internal Inter-Cell Handover Measurement per Cell, the counters show the performance of internal inter-cell handovers. The channel involved in the measurement is of the following types: z
SDCCH
z
TCH
The crossing of frequency bands is of the following types: z
900/850 to 900/850
z
1800/1900 to 1800/1900
z
900/850 to 1800/1900
z
1800/1900 to 900/850
The failure causes include: z
Channel unavailable
z
Terrestrial resource request failure
z
A-interface failure
z
Timer expired
z
Reconnection to old channels
Trigger Point The trigger points of the counters are as follows: z
Failed Incoming Internal Inter-Cell Handovers As shown in Figure 11-13, the measurement is triggered when the intra-cell handover fails before the handover completion timer expires. The measurement is based on the channel type and the crossing of frequency bands. The channel involved in the measurement is of the following types: −
SDCCH
−
TCH
The crossing of frequency bands is of the following types:
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−
900/850 to 900/850
−
1800/1900 to 1800/1900
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−
900/850 to 1800/1900
−
1800/1900 to 900/850
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Failed Incoming Internal Inter-Cell Handovers (Channel Unavailable) As shown in Figure 11-13, the measurement is triggered when a channel request fails because the target cell has no channel available. The measurement is based on the channel type. The channel involved in the measurement is of the following types:
z
−
SDCCH
−
TCHF
−
TCHH
Failed Incoming Internal Inter-Cell Handovers (Terrestrial Resource Request Failed) As shown in Figure 11-13, the measurement is triggered when the BSC net-drive fails.
z
Failed Incoming Internal Inter-Cell Handovers (A-Interface Failure) As shown in Figure 11-13, the measurement is triggered when the BSC receives an Ainterface failure message before the MS sends an HO CMP message to the BSC.
z
Failed Incoming Internal Inter-Cell Handovers (Timer Expired) As shown in Figure 11-13, the BSC sends an HO CMD message to the MS and starts a timer to wait for an HO CMP message. The measurement is triggered when the timer expires. The measurement is based on the channel type. The channel involved in the measurement is of the following types:
z
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−
SDCCH
−
TCHF
−
TCHH
Failed Incoming Internal Inter-Cell Handovers (Reconnection to Old Channels)
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As shown in Figure 11-13, BSC sends an HO CMD message to the MS and starts a timer to wait for an HO CMP message. Before the timer expires, the MS reconnects to the old channel and sends the BSC an HO FAIL message on the old channel. The measurement is triggered when the BSC receives the HO FAIL message. Figure 11-13 Trigger points of the counters of Failed Incoming Internal Inter-Cell Handovers per Cell MS
BTS1(CELL1)
BSC
BTS1(CELLO)
MS
MSC
MR FROM MS A CHAN ACTIV In the incoming internal inter-cell handover procedure
CHAN ACTIV ACK B HO CMD
HO ACC HO DETECT PHY INFO FIRST SABM
C EST IND D
TIME OUT E
HO CMP
HO FAIL
F HO PERFORMED
A: Failed Incoming Internal Inter-Cell Handovers (Channel Unavailable) B: Failed Incoming Internal Inter-Cell Handovers (Terrestrial Resource Request Failed) C: Failed Incoming Internal Inter-Cell Handovers (A-Interface Failure) D: Failed Incoming Internal Inter-Cell Handovers E: Failed Incoming Internal Inter-Cell Handovers (Timer Expired) F: Failed Incoming Internal Inter-Cell Handovers (Reconnection to Old Channels)
Formula None.
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11.11.5 Incoming Internal Inter-Cell Handover Detection Messages Received by BSC per Cell Counter Table 11-38 lists the counters of Incoming Internal Inter-Cell Handover Detection Messages Received by BSC per Cell. Table 11-38 Counters of Incoming Internal Inter-Cell Handover Detection Messages Received by BSC per Cell Number
Counter
1
H3240: Incoming Internal Inter-Cell Handover Detection Messages Received by BSC (SDCCH)
2
H3247: Incoming Internal Inter-Cell Handover Detection Messages Received by BSC (TCHF)
3
H3248: Incoming Internal Inter-Cell Handover Detection Messages Received by BSC (TCHH)
Meaning The counters measure the number of times the BSC receives an HO DETECT message from the BTS in the target cell. The measurement is based on the channel type. The channel involved in the measurement is of the following types: z
SDCCH
z
TCHF
z
TCHH
Trigger Point As shown in Figure 11-13, the measurement is triggered when the BSC receives an HO DETECT message from the BTS in the target cell. The measurement is based on the channel type.
Formula None.
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11.11.6 Incoming Internal Inter-Cell Handover Analyzed Measurement per Cell Counter Table 11-39 lists the counters of Incoming Internal Inter-Cell Handover Analyzed Measurement per Cell. Table 11-39 Counters of Incoming Internal Inter-Cell Handover Analyzed Measurement per Cell Number
Counter
1
CH320: Incoming Internal Inter-Cell Handover Requests
2
CH323: Successful Incoming Internal Inter-Cell Handovers
3
TH323: Success Rate of Incoming Internal Inter-Cell Handover
4
CH322: Failed Incoming Internal Inter-Cell Handovers
5
CH324: Incoming Internal Inter-Cell Handover Detection Messages Received by BSC
6
CH321: Incoming Internal Inter-Cell Handover Responses
7
CH322C: Failed Incoming Internal Inter-Cell Handovers (Timer Expired)
Meaning None.
Trigger Point None.
Formula Incoming Internal Inter-Cell Handover Requests = [Incoming Internal Inter-Cell Handover Requests (SDCCH) (900/850-900/850)] + [Incoming Internal Inter-Cell Handover Requests (SDCCH) (1800/1900-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (SDCCH) (900/850-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (SDCCH) (1800/1900-900/850)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (900/850-900/850)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (1800/1900-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (900/850-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (1800/1900-900/850)]
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Successful Incoming Internal Inter-Cell Handovers = [Incoming Internal Inter-Cell Handover Requests (SDCCH) (900/850-900/850)] + [Incoming Internal Inter-Cell Handover Requests (SDCCH) (1800/1900-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (SDCCH) (900/850-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (SDCCH) (1800/1900-900/850)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (900/850-900/850)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (1800/1900-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (900/850-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (1800/1900-900/850)][Failed Incoming Internal Inter-Cell Handovers (SDCCH) (900/850-900/850)][Failed Incoming Internal Inter-Cell Handovers (SDCCH) (1800/1900-1800/1900)][Failed Incoming Internal Inter-Cell Handovers (SDCCH) (900/850-1800/1900)][Failed Incoming Internal Inter-Cell Handovers (SDCCH) (1800/1900-900/850)][Failed Incoming Internal Inter-Cell Handovers (TCH) (900/850-900/850)][Failed Incoming Internal Inter-Cell Handovers (TCH) (1800/1900-1800/1900)][Failed Incoming Internal Inter-Cell Handovers (TCH) (900/850-1800/1900)][Failed Incoming Internal Inter-Cell Handovers (TCH) (1800/1900-900/850)]
Success Rate of Incoming Internal Inter-Cell Handover = [Successful Incoming Internal Inter-Cell Handovers]*{100}/[Incoming Internal Inter-Cell Handover Requests]
Failed Incoming Internal Inter-Cell Handovers = [Failed Incoming Internal Inter-Cell Handovers (SDCCH) (900/850-900/850)] + [Failed Incoming Internal Inter-Cell Handovers (SDCCH) (1800/1900-1800/1900)] + [Failed Incoming Internal Inter-Cell Handovers (SDCCH) (900/850-1800/1900)] + [Failed Incoming Internal Inter-Cell Handovers (SDCCH) (1800/1900-900/850)] + [Failed Incoming Internal Inter-Cell Handovers (TCH) (900/850-900/850)] + [Failed Incoming Internal Inter-Cell Handovers (TCH) (1800/1900-1800/1900)] + [Failed Incoming Internal Inter-Cell Handovers (TCH) (900/850-1800/1900)] + [Failed Incoming Internal Inter-Cell Handovers (TCH) (1800/1900-900/850)]
Incoming Internal Inter-Cell Handover Detection Messages Received by BSC = [Incoming Internal Inter-Cell Handover Detection Messages Received by BSC (SDCCH)] +
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[Incoming Internal Inter-Cell Handover Detection Messages Received by BSC (TCHF)] + [Incoming Internal Inter-Cell Handover Detection Messages Received by BSC (TCHH)]
Incoming Internal Inter-Cell Handover Responses = [Incoming Internal Inter-Cell Handover Responses (SDCCH) (900/850-900/850)] + [Incoming Internal Inter-Cell Handover Responses (SDCCH) (1800/1900-1800/1900)] + [Incoming Internal Inter-Cell Handover Responses (SDCCH) (900/850-1800/1900)] + [Incoming Internal Inter-Cell Handover Responses (SDCCH) (1800/1900-900/850)] + [Incoming Internal Inter-Cell Handover Responses (TCHF) (900/850-900/850)] + [Incoming Internal Inter-Cell Handover Responses (TCHF) (1800/1900-1800/1900)] + [Incoming Internal Inter-Cell Handover Responses (TCHF) (900/850-1800/1900)] + [Incoming Internal Inter-Cell Handover Responses (TCHF) (1800/1900-900/850)] + [Incoming Internal Inter-Cell Handover Responses (TCHH) (900/850-900/850)] + [Incoming Internal Inter-Cell Handover Responses (TCHH) (1800/1900-1800/1900)] + [Incoming Internal Inter-Cell Handover Responses (TCHH) (900/850-1800/1900)] + [Incoming Internal Inter-Cell Handover Responses (TCHH) (1800/1900-900/850)]
Failed Incoming Internal Inter-Cell Handovers (Timer Expired) = [Failed Incoming Internal Inter-Cell Handovers (Timer Expired) (SDCCH)] + [Failed Incoming Internal Inter-Cell Handovers (Timer Expired) (TCHF) (Signaling Channel)] + [Failed Incoming Internal Inter-Cell Handovers (Timer Expired) (TCHH) (Signaling Channel)] + [Failed Incoming Internal Inter-Cell Handovers (Timer Expired) (TCHF) (Traffic Channel)] + [Failed Incoming Internal Inter-Cell Handovers (Timer Expired) (TCHH) (Traffic Channel)]
11.12 Outgoing Internal Inter-Cell Handover Measurement per Cell 11.12.1 Overview Outgoing Internal Inter-Cell Handover Measurement per cell is used to measure the handover of the cells controlled by one BSC. The measurement is performed in the source cell. The outgoing internal inter-cell handover is initiated by measurement reports or by assignment requests sent from the MSC. The descriptions of these two types of handovers are as follows:
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Outgoing internal inter-cell handover initiated by measurement reports (excluding directed retry) After an MS seizes a dedicated channel, it sends measurement reports to the BSC periodically. After receiving the measurement reports, the BSC uses the handover algorithm to decide whether a handover is required or not on the basis of the factors such as the cell load, concentric cell, signal interference, and measurement reports. If a handover is required and the source cell (current cell) and the target cell are two cells in a BSC, an internal inter-cell handover is initiated. The procedure is as follows: Step 1 The BSC sends a CHAN ACTIV message to the BTS where the target cell is located. This message is used to activate the specified channel in the target cell. Step 2 After receiving a CHAN ACTIV ACK message, the BSC requests for speech service resources. If the request succeeds, the BSC sends the MS an HO CMD message, requesting the MS to initiate a handover from the source cell to the target cell. Step 3 The MS sends the target BTS a HO ACC message to attempt to access a new cell. Step 4 The target BTS forwards this message through an HO DETECT message to the BSC and sends a PHY INFO message to the MS. Step 5 The MS sends a FIRST SABM frame to the target BTS and the target BTS sends an EST IND message to the BSC, indicating that the MS has successfully accessed the target cell. The MS also sends an HO CMP message to the BSC. Step 6 The BSC sends an HO PERFORMED message to the MSC. ----End The outgoing internal inter-cell handover is part of the internal inter-cell handover. It refers to the internal inter-cell handover procedure performed in the source cell (the cell where the MS is located before the handover). The source cell and the target cell (the cell where the MS is located after the handover) can be two cells in a BTS or two cells in two BTSs controlled by one BSC.
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Figure 11-14 shows the procedure of outgoing internal inter-cell handover (excluding directed retry). Figure 11-14 Outgoing internal inter-cell handover (excluding directed retry) MS
BTS1(CELL1)
BSC
BTS1(CELLO)
MS
MSC
MR FROM MS A CHAN ACTIV CHAN ACTIV ACK HO ACC
HO CMD B
HO DETECT PHY INFO FIRST SABM EST IND HO CMP HO PERFORMED
A: Outgoing Internal Inter-Cell Handover Requests (Excluding Directed Retry) B: Outgoing Internal Inter-Cell Handover Commands (Excluding Directed Retry)
Outgoing internal inter-cell handover initiated by the assignment request sent from the MSC (directed retry) The procedure is as follows: Step 1 When an MS needs to initiate a call, it sends a CHAN RQD message to the BSC through the BTS. Step 2 The BSC requests for an SDCCH or TCH signaling channel, and sends a CHAN ACTIV message to the BTS. After receiving a CHAN ACTIV ACK message from the BTS, the BSC sends the MS an IMM ASS CMD message on the signaling channel, requesting the MS to access the network on this signaling channel. Step 3 After receiving an EST IND message from the MS, the BSC encapsulates the CM SERV REQ message carried in the EST IND message into the CR message and forwards it to the MSC. After the MSC returns a CC message, the communication between the MS and the MSC is established on the MM layer. Step 4 After the messages CM SERV ACCEPT, SETUP, and CALL PROCEEDING are sent, the MSC sends an ASS REQ message to the BSC and the BSC analyzes the information such as cell load to select an assignment mode (normal assignment, mode modification, directed retry). If current cell load is too high, the BSC decides to initiate a directed retry procedure. Step 5 The BSC sends a CHAN ACTIV message to the target cell. After receiving a CHAN ACTIV ACK message, the BSC requests for speech service resources.
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Step 6 If the request succeeds, the BSC sends an HO CMD message to the MS, and the MS sends an HO ACC message to attempt to access a new cell. Step 7 The BTS sends an HO DETECT message to the BSC and sends a PHY INFO message to the MS. Step 8 The MS sends a FIRST SABM to access the network. The BTS sends an EST IND message to the BSC and a UA frame to the MS. The MS sends an HO CMP message to the BSC. Step 9 The BSC sends an ASS CMP message to the MSC and completes other signaling processing. ----End The outgoing internal inter-cell handover is part of the internal inter-cell handover procedure. It refers to the handover procedure performed in the source cell (the cell where the MS is located before the handover). The source cell and the target cell (the cell where the MS is located after the handover) can be two cells in a BTS or two cells in two BTSs controlled by one BSC.
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Figure 11-15 Outgoing internal inter-cell handover (directed retry) MS
BTS1(CELL1)
BSC
BTS2(CELLO)
MSC
MS
CHAN REQ CHAN RED CHAN ACTIV CHAN ACTIV ACK IMM ASS CMD FIRST SABM UA
EST IND（CM SERV REQ）
CR(CM SERV REQ) CC
CM SERV ACCEPT SETUP CALL PROCEEDING
ASSIGN REQ
A
CHAN ACTIV CHAN ACTIV ACK
HO CMD
B
HO DETECT EST IND
HO ACC PHY INFO FIRST SABM UA
HO CMP ASSIGN CMP
A: Outgoing Internal Inter-Cell Handover Requests (Directed Retry) B: Outgoing Internal Inter-Cell Handover Commands (Directed Retry)
Table 11-40 lists the counter classification of Outgoing Internal Inter-Cell Handover Measurement per Cell. Table 11-40 Counter classification of Outgoing Internal Inter-Cell Handover Measurement per Cell
11-104
Counter Classification
Section
Outgoing Internal Inter-Cell Handover Requests per Cell
11.12.2
Outgoing Internal Inter-Cell Handover Commands per Cell
11.12.3
Failed Outgoing Internal Inter-Cell Handovers per Cell
11.12.3
Outgoing Internal Inter-Cell Handover Measurement per Cell
11.12.5
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11.12.2 Outgoing Internal Inter-Cell Handover Requests per Cell Counter Table 11-41 lists the counters of Outgoing Internal Inter-Cell Handover Requests per Cell (Excluding Directed Retry). Table 11-41 Counters of Outgoing Internal Inter-Cell Handover Requests per Cell (Excluding Directed Retry) Number
Counter
1
H3100W: Outgoing Internal Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (900/850-900/850)
2
H3100X: Outgoing Internal Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (1800/1900-1800/1900)
3
H3100Y: Outgoing Internal Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)
4
H3100Z: Outgoing Internal Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)
5
H3107W: Outgoing Internal Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (900/850-900/850)
6
H3107X: Outgoing Internal Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (1800/1900-1800/1900)
7
H3107Y: Outgoing Internal Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (900/850-1800/1900)
8
H3107Z: Outgoing Internal Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (1800/1900-900/850)
9
H3108W: Outgoing Internal Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (900/850-900/850)
10
H3108X: Outgoing Internal Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (1800/1900-1800/1900)
11
H3108Y: Outgoing Internal Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (900/850-1800/1900)
12
H3108Z: Outgoing Internal Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (1800/1900-900/850)
13
H310A: Outgoing Internal Inter-Cell Handover Requests (Uplink Quality)
14
H310B: Outgoing Internal Inter-Cell Handover Requests (Downlink Quality)
15
H310C: Outgoing Internal Inter-Cell Handover Requests (Uplink Strength)
16
H310D: Outgoing Internal Inter-Cell Handover Requests (Downlink Strength)
17
H310E: Outgoing Internal Inter-Cell Handover Requests (Timing Advance)
18
H310F: Outgoing Internal Inter-Cell Handover Requests (Better Cell)
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Number
Counter
19
H310G: Outgoing Internal Inter-Cell Handover Requests (Load)
20
H310H: Outgoing Internal Inter-Cell Handover Requests (Rapid Level Drop)
21
H310I: Outgoing Internal Inter-Cell Handover Requests (MSC Intervention)
22
H310J: Outgoing Internal Inter-Cell Handover Requests (OM Intervention)
23
H310L: Outgoing Internal Inter-Cell Handover Requests (Other Causes)
Table 11-42 lists the counters of Outgoing Internal Inter-Cell Handover Requests per Cell (Directed Retry). Table 11-42 Counters of Outgoing Internal Inter-Cell Handover Requests per Cell (Directed Retry) Number
Counter
1
H3101W: Outgoing Internal Inter-Cell Handover Requests (Directed Retry) (900/850-900/850)
2
H3101X: Outgoing Internal Inter-Cell Handover Requests (Directed Retry) (1800/1900-1800/1900)
3
H3101Y: Outgoing Internal Inter-Cell Handover Requests (Directed Retry) (900/850-1800/1900)
4
H3101Z: Outgoing Internal Inter-Cell Handover Requests (Directed Retry) (1800/1900-900/850)
Meaning The descriptions of the counters are as follows z
Outgoing Internal Inter-Cell Handover Requests (Excluding Directed Retry) The BSC uses the handover algorithm to decide whether a handover is required or not based on the measurement reports. If a handover is required and the source cell (current cell) and the target cell are two cells controlled by one BSC, the BSC initiates an internal inter-cell handover. The counter measures the number of outgoing internal inter-cell handover requests initiated by the BSC. The measurement is based on the channel type, the handover cause, and the crossing of frequency bands. Along with Outgoing Internal Inter-Cell Handover Commands per Cell and Failed Outgoing Internal Inter-Cell Handovers per Cell, the counter shows the performance of outgoing internal inter-cell handovers. Along with Incoming Internal Inter-Cell Handover Measurement per Cell, the counter shows the performance of internal intercell handovers. The channel involved in the measurement is of the following types:
11-106
−
SDCCH
−
TCHF
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11 Call Measurement
TCHH
The handover causes consist of the following: −
Uplink quality
−
Downlink quality
−
Uplink strength
−
Downlink strength
−
Timing advance
−
Better cell
−
Load
−
Rapid level drop
−
MSC intervention
−
OM intervention
−
Other causes
The crossing of frequency bands is of the following types:
z
−
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
−
1800/1900 to 900/850
Outgoing Internal Inter-Cell Handover Requests (Directed Retry) When directed retry occurs in the assignment procedure and the source cell and the target cell are two cells controlled by one BSC, the BSC sends an outgoing internal inter-cell handover request to the MS. This counter measures the number of outgoing internal inter-cell handover requests. The measurement is based on the crossing of frequency bands. Along with Outgoing Internal Inter-Cell Handover Commands per Cell and Failed Outgoing Internal Inter-Cell Handovers per Cell, the counter shows the performance of outgoing internal inter-cell handovers. Along with Incoming Internal Inter-Cell Handover Measurement per Cell, the counter shows the performance of internal intercell handovers. The crossing of frequency bands is of the following types: −
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
−
1800/1900 to 900/850
Trigger Point The trigger points of the counters are as follows: z
Outgoing Internal Inter-Cell Handover Requests (Excluding Directed Retry) As shown in Figure 11-14 (A), the measurement is triggered when the BSC decides to initiate an outgoing internal inter-cell handover based on measurement reports. The measurement is based on the channel type, the handover cause, and the crossing of frequency bands.
z
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Outgoing Internal Inter-Cell Handover Requests (Directed Retry)
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As shown in Figure 11-15 (A), the measurement is triggered when the BSC initiates a directed retry procedure. The measurement is based on the crossing of frequency bands.
Formula None.
11.12.3 Outgoing Internal Inter-Cell Handover Commands per Cell Counter Table 11-43 lists the counters of Outgoing Internal Inter-Cell Handover Commands per Cell (Excluding Directed Retry). Table 11-43 Counters of Outgoing Internal Inter-Cell Handover Commands per Cell (Excluding Directed Retry)
11-108
Number
Counter
1
H3110W: Outgoing Internal Inter-Cell Handover Command (SDCCH) (Excluding Directed Retry) (900/850-900/850)
2
H3110X: Outgoing Internal Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (1800/1900-1800/1900)
3
H3110Y: Outgoing Internal Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)
4
H3110Z: Outgoing Internal Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)
5
H3117W: Outgoing Internal Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (900/850-900/850)
6
H3117X: Outgoing Internal Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (1800/1900-1800/1900)
7
H3117Y: Outgoing Internal Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (900/850-1800/1900)
8
H3117Z: Outgoing Internal Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (1800/1900-900/850)
9
H3118W: Outgoing Internal Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (900/850-900/850)
10
H3118X: Outgoing Internal Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (1800/1900-1800/1900)
11
H3118Y: Outgoing Internal Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (900/850-1800/1900)
12
H3118Z: Outgoing Internal Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (1800/1900-900/850)
13
H311A: Outgoing Internal Inter-Cell Handover Commands (Uplink Quality)
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Number
Counter
14
H311B: Outgoing Internal Inter-Cell Handover Commands (Downlink Quality)
15
H311C: Outgoing Internal Inter-Cell Handover Commands (Uplink Strength)
16
H311D: Outgoing Internal Inter-Cell Handover Commands (Downlink Strength)
17
H311E: Outgoing Internal Inter-Cell Handover Commands (Timing Advance)
18
H311F: Outgoing Internal Inter-Cell Handover Commands (Better Cell)
19
H311G: Outgoing Internal Inter-Cell Handover Commands (Load)
20
H311H: Outgoing Internal Inter-Cell Handover Commands (Rapid Level Drop)
21
H311I: Outgoing Internal Inter-Cell Handover Commands (MSC Intervention)
22
H311J: Outgoing Internal Inter-Cell Handover Commands (OM Intervention)
23
H311L: Outgoing Internal Inter-Cell Handover Commands (Other Causes)
Table 11-44 lists the counters of Outgoing Internal Inter-Cell Handover Commands per Cell (Directed Retry). Table 11-44 Counters of Outgoing Internal Inter-Cell Handover Commands per Cell (Directed Retry) Number
Counter
1
H3111W: Outgoing Internal Inter-Cell Handover Commands (Directed Retry) (900/850-900/850)
2
H3111X: Outgoing Internal Inter-Cell Handover Commands (Directed Retry) (1800/1900-1800/1900)
3
H3111Y: Outgoing Internal Inter-Cell Handover Commands (Directed Retry) (900/850-1800/1900)
4
H3111Z: Outgoing Internal Inter-Cell Handover Commands (Directed Retry) (1800/1900-900/850)
Meaning The descriptions of the counters are as follows: z
Outgoing Internal Inter-Cell Handover Commands (Excluding Directed Retry) In the outgoing internal inter-cell handover (excluding directed retry) procedure, the BSC sends an HO CMD message to the MS. The measurement is performed in the source cell. The measurement is based on channel type, the handover cause, and the crossing of frequency bands.
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference
11 Call Measurement
Along with Outgoing Internal Inter-Cell Handover Requests per Cell and Failed Outgoing Internal Inter-Cell Handovers per Cell, the counter shows the performance of outgoing internal inter-cell handovers. Along with Incoming Internal Inter-Cell Handover Measurement per Cell, the counter shows the performance of internal intercell handovers. The channel involved in the measurement is of the following types: −
SDCCH
−
TCHF
−
TCHH
The handover causes consist of the following: −
Uplink quality
−
Downlink quality
−
Uplink strength
−
Downlink strength
−
Timing advance
−
Better cell
−
Load
−
Rapid level drop
−
MSC intervention
−
OM intervention
−
EDGE coverage
−
Other causes
The crossing of frequency bands is of the following types:
z
−
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
−
1800/1900 to 900/850
Outgoing Internal Inter-Cell Handover Commands (Directed Retry) In the outgoing internal inter-cell handover (directed retry) procedure, the BSC sends an HO CMD message to the MS through the source cell. The measurement is performed in the source cell. The measurement is based on the crossing of frequency bands. Along with Outgoing Internal Inter-Cell Handover Requests per Cell and Failed Outgoing Internal Inter-Cell Handovers per Cell, the counter shows the performance of outgoing internal inter-cell handovers. Along with Incoming Internal Inter-Cell Handover Measurement per Cell, the counter shows the performance of internal intercell handovers. The crossing of frequency bands is of the following types:
11-110
−
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
−
1800/1900 to 900/850
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Trigger Point The trigger points of the counters are as follows: z
Outgoing Internal Inter-Cell Handover Commands (Excluding Directed Retry) As shown in Figure 11-14 (B), the measurement is triggered when the BSC sends an HO CMD message to the MS through the source cell in the outgoing internal inter-cell handover (excluding directed retry) procedure. The measurement is based on channel type, the handover cause, and the crossing of frequency bands.
z
Outgoing Internal Inter-Cell Handover Commands (Directed Retry) As shown in Figure 11-15 (B), the measurement is triggered when the BSC sends an HO CMD message to the MS through the source cell in the outgoing internal inter-cell handover (directed retry) procedure.
Formula None.
11.12.4 Failed Outgoing Internal Inter-Cell Handovers per Cell Counter Based on the procedure where the trigger points are located, the counters of Failed Outgoing Internal Inter-Cell Handovers per Cell can be classified into the following groups: z
Failed Outgoing Internal Inter-Cell Handovers per Cell (Excluding Directed Retry)
z
Failed Outgoing Internal Inter-Cell Handovers per Cell (Directed Retry)
z
Failed Outgoing Internal Inter-Cell Handovers per Cell (Including Directed Retry)
Table 11-45 lists the counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Excluding Directed Retry). Table 11-45 Counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Excluding Directed Retry) Number
Counter
1
H3120W: Failed Outgoing Internal Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (900/850-900/850)
2
H3120X: Failed Outgoing Internal Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (1800/1900-1800/1900)
3
H3120Y: Failed Outgoing Internal Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)
4
H3120Z: Failed Outgoing Internal Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)
5
H3127W: Failed Outgoing Internal Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (900/850-900/850)
6
H3127X: Failed Outgoing Internal Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (1800/1900-1800/1900)
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11-112
Number
Counter
7
H3127Y: Failed Outgoing Internal Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (900/850-1800/1900)
8
H3127Z: Failed Outgoing Internal Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (1800/1900-900/850)
9
H3128W: Failed Outgoing Internal Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (900/850-900/850)
10
H3128X: Failed Outgoing Internal Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (1800/1900-1800/1900)
11
H3128Y: Failed Outgoing Internal Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (900/850-1800/1900)
12
H3128Z: Failed Outgoing Internal Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (1800/1900-900/850)
13
H3120C: Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (SDCCH) (Excluding Directed Retry)
14
H312Da: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Unspecified)
15
H312Db: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Channel Unacceptable)
16
H312Dc: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Timer Expired)
17
H312Dd: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, No Activity on the Radio Path)
18
H312De: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Preemptive Release)
19
H312Df: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Handover Failed, Timing Advance out of Range)
20
H312Dg: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Channel Mode Unavailable)
21
H312Dh: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Frequency Unavailable)
22
H312Di: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Call Already Cleared)
23
H312Dj: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Semantically Incorrect Message)
24
H312Dk: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Invalid Mandatory Information)
25
H312Dl: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Message Type Non-existent or Not Implemented)
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Number
Counter
26
H312Dm: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Message Type Not Compatible with Protocol State)
27
H312Dn: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Conditional IE Error)
28
H312Do: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (No Cell Allocation Available)
29
H312Dp: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Protocol Error Unspecified)
30
H312Dq: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Other Causes)
Table 11-46 lists the counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Directed Retry). Table 11-46 Counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Directed Retry) Number
Counter
1
H3121W: Failed Outgoing Internal Inter-Cell Handovers (Directed Retry) (900/850-900/850)
2
H3121X: Failed Outgoing Internal Inter-Cell Handovers (Directed Retry) (1800/1900-1800/1900)
3
H3121Y: Failed Outgoing Internal Inter-Cell Handovers (Directed Retry) (900/850-1800/1900)
4
H3121Z: Failed Outgoing Internal Inter-Cell Handovers (Directed Retry) (1800/1900-900/850)
5
H3121C: Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (Directed Retry)
Failed Outgoing Internal Inter-Cell Handovers per Cell (Including Directed Retry) refers the failed outgoing internal inter-cell handovers initiated by measurement reports or directed retry. Table 11-47 lists the counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Including Directed Retry) Table 11-47 Counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Including Directed Retry) Number
Counter
1
H312A: Failed Outgoing Internal Inter-Cell Handovers (Channel Unavailable)
2
H312B: Failed Outgoing Internal Inter-Cell Handovers (Terrestrial Resource Request Failed)
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Number
Counter
3
H312G: Failed Outgoing Internal Inter-Cell Handovers (A-Interface Failure)
4
H3127Cb: Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (TCHF) (Signaling Channel)
5
H3128Cb: Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (TCHH) (Signaling Channel)
6
H3127Ca: Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (TCHF) (Traffic Channel)
7
H3128Ca: Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (TCHH) (Traffic Channel)
8
H3122A: Failed Outgoing Internal Inter-Cell Handovers (Uplink Quality)
9
H3122B: Failed Outgoing Internal Inter-Cell Handovers (Downlink Quality)
10
H3122C: Failed Outgoing Internal Inter-Cell Handovers (Uplink Strength)
11
H3122D: Failed Outgoing Internal Inter-Cell Handovers (Downlink Strength)
12
H3122E: Failed Outgoing Internal Inter-Cell Handovers (Timing Advance)
13
H3122F: Failed Outgoing Internal Inter-Cell Handovers (Better Cell)
14
H3122G: Failed Outgoing Internal Inter-Cell Handovers (Load)
15
H3122H: Failed Outgoing Internal Inter-Cell Handovers (Rapid Level Drop)
16
H3122I: Failed Outgoing Internal Inter-Cell Handovers (MSC Intervention)
17
H3122J: Failed Outgoing Internal Inter-Cell Handovers (OM Intervention)
18
H3122L: Failed Outgoing Internal Inter-Cell Handovers (Other Causes)
Meaning The descriptions of the counters are as follows: z
Failed Outgoing Internal Inter-Cell Handovers per Cell (Excluding Directed Retry) In the outgoing internal inter-cell handover (excluding directed retry) procedure, when the outgoing internal inter-cell handover fails because errors occur before the BSC receives an HO CMP message or before the timer that is set to wait for the HO CMP message expires, the BSC measures the counters. The measurement is based on the channel type, the failure cause, the handover cause, and the crossing of frequency bands. Along with Outgoing Internal Inter-Cell Handover Requests per Cell and Outgoing Internal Inter-Cell Handover Commands per Cell, the counters show the performance of outgoing internal inter-cell handovers. Along with Incoming Internal Inter-Cell Handover Measurement per Cell, the counters show the performance of internal intercell handovers. The channel involved in the measurement is of the following types:
11-114
−
SDCCH
−
TCHF
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11 Call Measurement
TCHH
The failure causes include the following: −
Channel unavailable
−
Terrestrial resource request failure
−
A-Interface Failure
−
MSC Intervention
−
Timer Expired
−
Reconnection to Old Channels
−
Congestion
The handover causes consist of the following: −
Uplink quality
−
Downlink quality
−
Uplink strength
−
Downlink strength
−
Timing advance
−
Better cell
−
Load
−
Rapid level drop
−
MSC intervention
−
OM intervention
−
EDGE coverage
−
Other causes
The crossing of frequency bands is of the following types:
z
−
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
−
1800/1900 to 900/850
Failed Outgoing Internal Inter-Cell Handovers per Cell (Directed Retry) In the outgoing internal inter-cell handover (directed retry) procedure, when the outgoing internal inter-cell handover fails because errors occur before the BSC receives an HO CMP message or before the timer that is set to wait for the HO CMP message expires, the BSC measures the counters. The measurement is based on the channel type, the failure cause, the handover cause, and the crossing of frequency bands. Along with Outgoing Internal Inter-Cell Handover Requests per Cell and Outgoing Internal Inter-Cell Handover Commands per Cell, the counters show the performance of outgoing internal inter-cell handovers. Along with Incoming Internal Inter-Cell Handover Measurement per Cell, the counters show the performance of internal intercell handovers. The channel involved in the measurement is of the following types: −
TCHF
−
TCHH
The failure causes include the following:
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−
Channel unavailable
−
Terrestrial resource request failure
Huawei Technologies Proprietary
11-115
HUAWEI BSC6000 Base Station Controller Performance Counter Reference
11 Call Measurement −
A-Interface Failure
−
MSC Intervention
−
Timer Expired
The handover causes consist of the following: −
Uplink quality
−
Downlink quality
−
Uplink strength
−
Downlink strength
−
Timing advance
−
Better cell
−
Load
−
Rapid level drop
−
MSC intervention
−
OM intervention
−
EDGE coverage
−
Other causes
The crossing of frequency bands is of the following types:
11-116
−
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
−
1800/1900 to 900/850
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference
11 Call Measurement
Trigger Point Figure 11-16 and Figure 11-17 show the trigger points of the counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Excluding Directed Retry) and Failed Outgoing Internal Inter-Cell Handovers per Cell (Directed Retry). Figure 11-16 Trigger points of the counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Excluding Directed Retry) MS
BTS1(CELL1)
BSC
BTS1(CELLO)
MS
MSC
MR FROM MS A B
In the outgoing internal inter-cell handover procedure
CHAN ACTIV CHAN ACTIV ACK C
HO ACC
HO CMD HO DETECT
PHY INFO D
FIRST SABM EST IND
E F
I G
H HO CMP HO PERFORMED
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference
11 Call Measurement
Figure 11-17 Trigger points of the counters of Failed Outgoing Internal Inter-Cell Handovers per Cell (Directed Retry) MS
BTS1(CELL1)
MSC
BSC
BTS2(CELLO)
MS
CHAN REQ CHAN RED CHANACTIV CHAN ACTIV ACK IMM ASS CMD FIRST SABM UA
EST IND（CM SERV REQ ）
CR(CM SERV REQ) CC
CM SERV ACCEPT SETUP CALL PROCEEDING
ASSIGNREQ
In the outgoing internal inter-cell handover procedure
A B CHANACTIV CHAN ACTIV ACK C HO CMD HO DETECT EST IND TIME OUT
HO ACC PHY INFO
D E
FIRST SABM UA
J G
F HO CMP ASSIGNCMP
A: Failed Outgoing Internal Inter-Cell Handovers (Channel Unavailable) B: Failed Outgoing Internal Inter-Cell Handovers (Congestion) C: Failed Outgoing Internal Inter-Cell Handovers (Terrestrial Resource Request Failed) D: Failed Outgoing Internal Inter-Cell Handovers (A-Interface Failure) E: Failed Outgoing Internal Inter-Cell Handovers (Clear Commands Sent by MSC) F: Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) G: Failed Outgoing Internal Inter-Cell Handovers (Handover Causes) H: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) I: Failed Outgoing Internal Inter-Cell Handovers (Excluding Directed Retry) J: Failed Outgoing Internal Inter-Cell Handovers (Directed Retry)
z
11-118
Failed Outgoing Internal Inter-Cell Handovers (Excluding Directed Retry)
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As shown in Figure 11-16, in the outgoing internal inter-cell handover (excluding directed retry) procedure, the measurement is triggered when the handover fails before the MS successfully accesses the target cell and before the handover completed timer expires. The measurement is based on the channel type and the crossing of frequency bands. The channel involved in the measurement is of the following types: −
SDCCH
−
TCHF
−
TCHH
The crossing of frequency bands is of the following types:
z
−
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
−
1800/1900 to 900/850
Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels, Excluding Directed Retry) As shown in Figure 11-16, in the outgoing internal inter-cell handover procedure, the BSC sends an HO CMD message to the MS through the source cell and initiates a timer to wait for an HO CMP message. The measurement is triggered when the MS reconnects to the old channel and sends an HO FAIL message on the old channel. The measurement is based on the failure cause. The failure causes consist of the following:
z
−
Abnormal release, unspecified
−
Abnormal release, channel unacceptable
−
Abnormal release, timer expired
−
Abnormal release, no activity on the radio path
−
Preemptive release
−
Handover failed, timing advance out of range
−
Channel mode unavailable
−
Frequency unavailable
−
Call already cleared
−
Semantically incorrect message
−
Invalid mandatory information
−
Message type non-existent or not implemented
−
Message type not compatible with protocol state
−
Conditional IE error
−
No cell allocation available
−
Protocol error unspecified
−
Other causes
Failed Outgoing Internal Inter-Cell Handovers (Directed Retry) As shown in Figure 11-17, in the outgoing internal inter-cell handover (directed retry) procedure, the measurement is triggered when the handover fails before the MS successfully accesses the target cell and before the handover completed timer expires. The measurement is based on the crossing of frequency bands. The crossing of frequency bands is of the following types:
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Huawei Technologies Proprietary
11-119
HUAWEI BSC6000 Base Station Controller Performance Counter Reference
11 Call Measurement
z
−
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
−
1800/1900 to 900/850
Failed Outgoing Internal Inter-Cell Handovers (Channel Unavailable) As shown in Figure 11-16 and Figure 11-17, in the outgoing internal inter-cell handover (including directed retry) procedure, the measurement is triggered when the channel request fails and the failure cause is no channel available.
z
Failed Outgoing Internal Inter-Cell Handovers (Terrestrial Resource Request Failed) As shown in Figure 11-16 and Figure 11-17, in the outgoing internal inter-cell handover (including directed retry) procedure, the measurement is triggered when the net-drive fails.
z
Failed Outgoing Internal Inter-Cell Handovers (A-Interface Failure) As shown in Figure 11-16 and Figure 11-17, in the outgoing internal inter-cell handover (including directed retry) procedure, the measurement is triggered when an A interface failure message is received from the MSC.
z
Failed Outgoing Internal Inter-Cell Handovers (Clear Commands Sent by MSC) As shown in Figure 11-16 and Figure 11-17, in the outgoing internal inter-cell handover (including directed retry) procedure, the measurement is triggered when a clear command is received from the MSC.
z
Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) As shown in Figure 11-16 and Figure 11-17, in the outgoing internal inter-cell handover (including directed retry) procedure, the measurement is triggered when the handover completed timer expires.
z
Failed Outgoing Internal Inter-Cell Handovers (Handover Causes) As shown in Figure 11-16 and Figure 11-17, in the outgoing internal inter-cell handover (including directed retry) procedure, the measurement is triggered when the handover fails due to abnormal factors. The measurement is based on handover causes. The handover causes consist of the following:
z
−
Uplink quality
−
Downlink quality
−
Uplink strength
−
Downlink strength
−
Timing advance
−
Better cell
−
Load
−
Rapid level drop
−
MSC intervention
−
OM intervention
−
EDGE coverage
−
Other causes
Failed Outgoing Internal Inter-Cell Handovers (Congestion) As shown in Figure 11-16 and Figure 11-17, in the outgoing internal inter-cell handover (Including Directed Retry) procedure, the measurement is triggered when the channel
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request fails because of the target cell congestion. The measurement is based on the causes of congestion. The causes of congestion consist of the following: −
Uplink quality
−
Downlink quality
−
Uplink strength
−
Downlink strength
−
Timing advance
−
Better cell
−
Load
−
Rapid level drop
−
MSC intervention
−
OM intervention
−
Directed retry
−
Minimum timing advance
−
Other causes
Formula None.
11.12.5 Outgoing Internal Inter-Cell Handover Measurement per Cell Counter Table 11-48 lists the counters of Outgoing Internal Inter-Cell Handover Measurement per Cell. Table 11-48 Counters of Outgoing Internal Inter-Cell Handover Measurement per Cell Number
Counter
1
CH310: Outgoing Internal Inter-Cell Handover Requests
2
CH313: Successful Outgoing Internal Inter-Cell Handover
3
CH312: Failed Outgoing Internal Inter-Cell Handovers
4
TH313: Success Rate of Outgoing Internal Inter-Cell Handover
5
CH311: Outgoing Internal Inter-Cell Handover Commands
6
CH312C: Failed Outgoing Internal Inter-Cell Handovers (Timer Expired)
7
CH312D: Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels)
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Meaning None.
Trigger Point None.
Formula Outgoing Internal Inter-Cell Handover Requests = [Outgoing Internal Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (900/850-900/850)] + [Outgoing Internal Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Outgoing Internal Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing Internal Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing Internal Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (900/850-900/850)] + [Outgoing Internal Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Outgoing Internal Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing Internal Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing Internal Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (900/850-900/850)] + [Outgoing Internal Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Outgoing Internal Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing Internal Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing Internal Inter-Cell Handover Requests (Directed Retry) (900/850-900/850)] + [Outgoing Internal Inter-Cell Handover Requests (Directed Retry) (1800/1900-1800/1900)] + [Outgoing Internal Inter-Cell Handover Requests (Directed Retry) (900/850-1800/1900)] + [Outgoing Internal Inter-Cell Handover Requests (Directed Retry) (1800/1900-900/850)]
Successful Outgoing Internal Inter-Cell Handover =
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[Outgoing Internal Inter-Cell Handover Requests] -[Failed Outgoing Internal Inter-Cell Handovers]
Failed Outgoing Internal Inter-Cell Handovers = [Failed Outgoing Internal Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (900/850-900/850)] + [Failed Outgoing Internal Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Failed Outgoing Internal Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)] + [Failed Outgoing Internal Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)] + [Failed Outgoing Internal Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (900/850900/850)] + [Failed Outgoing Internal Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Failed Outgoing Internal Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (900/8501800/1900)] + [Failed Outgoing Internal Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (1800/1900-900/850)] + [Failed Outgoing Internal Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (900/850-900/850)] + [Failed Outgoing Internal Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Failed Outgoing Internal Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (900/850-1800/1900)] + [Failed Outgoing Internal Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (1800/1900-900/850)] + [Failed Outgoing Internal Inter-Cell Handovers (Directed Retry) (900/850-900/850)] + [Failed Outgoing Internal Inter-Cell Handovers (Directed Retry) (1800/1900-1800/1900)] + [Failed Outgoing Internal Inter-Cell Handovers (Directed Retry) (900/850-1800/1900)] + [Failed Outgoing Internal Inter-Cell Handovers (Directed Retry) (1800/1900-900/850)]
Success Rate of Outgoing Internal Inter-Cell Handover = [Successful Outgoing Internal Inter-Cell Handover]*{100}/[Outgoing Internal Inter-Cell Handover Requests]
Outgoing Internal Inter-Cell Handover Commands =
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[Outgoing Internal Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (900/850-900/850)] + [Outgoing Internal Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Outgoing Internal Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing Internal Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing Internal Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (900/850-900/850)] + [Outgoing Internal Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Outgoing Internal Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing Internal Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing Internal Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (900/850-900/850)] + [Outgoing Internal Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Outgoing Internal Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing Internal Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing Internal Inter-Cell Handover Commands (Directed Retry) (900/850-900/850)] + [Outgoing Internal Inter-Cell Handover Commands (Directed Retry) (1800/1900-1800/1900)] + [Outgoing Internal Inter-Cell Handover Commands (Directed Retry) (900/850-1800/1900)] + [Outgoing Internal Inter-Cell Handover Commands (Directed Retry) (1800/1900-900/850)]
Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) = [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (SDCCH) (Excluding Directed Retry)] + [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (TCHF) (Signaling Channel)] + [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (TCHH) (Signaling Channel)] + [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (TCHF) (Traffic Channel)] + [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (TCHH) (Traffic Channel)] + [Failed Outgoing Internal Inter-Cell Handovers (Timer Expired) (Directed Retry)]
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Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) = [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Unspecified)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Channel Unacceptable)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Timer Expired)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, No Activity on the Radio Path)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Preemptive Release)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Handover Failed, Timing Advance out of Range)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Channel Mode Unavailable)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Frequency Unavailable)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Call Already Cleared)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Semantically Incorrect Message)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Invalid Mandatory Information)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Message Type Non-existent or Not Implemented)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Message Type Not Compatible with Protocol State)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Conditional IE Error)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (No Cell Allocation Available)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Protocol Error Unspecified)] + [Failed Outgoing Internal Inter-Cell Handovers (Reconnection to Old Channels) (Other Causes)]
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11.13 Incoming External Inter-Cell Handover Measurement per Cell 11.13.1 Overview After the BSC receives measurement reports from the MS, it uses the handover algorithm to decide whether a handover is required or not on the basis of the factors such as the cell load, signal quality, signal interference, and measurement reports. If a handover is required and the source cell (current cell) and the target cell are controlled by two BSCs, an external inter-cell handover is initiated. The incoming external inter-cell handover is part of the external inter-cell handover. It refers to the external inter-cell handover performed in the target cell. In the following topics, the BSC where the source cell is located is called BSC1 and the BSC where the target cell is located is called BSC2. The BTS where the source cell is located is called BTS1 and the BTS where the target cell is located is called BTS2
The external inter-cell handover procedure is as follows: Step 1 The handover algorithm in BSC1 notifies BSC1 to initiate an external inter-cell handover based on the factors such as the measurement reports received from the MS, current cell load, and the cell load of the neighbor cell. Step 2 BSC1 sends the MSC an HO RQD message, requesting the MSC of the target cell. Step 3 Based on the target cell, the MSC finds BSC2 and sends an HO REQ message to BSC2. Step 4 BSC2 requests for a traffic channel from the target cell. After the request succeeds, BSC2 sends a CHAN ACTIV message to the target cell. After receiving a CHAN ACTIV ACK message from the target cell, BSC2 requests for speech service resources. Step 5 After the request succeeds, BSC2 sends the MSC an HO REQ ACK message to notify the MSC that the target cell is ready for the MS access. Step 6 The MSC sends an HO CMD message to BSC1 and BSC1 forwards this message to the MS. This message is used to request the MS to access the target cell. Step 7 The MS sends the target cell an HO ACC message to attempt to access the new cell. BTS2 sends an HO DETECT message to BSC2 and a PHY INFO message to the MS. Step 8 The MS sends a FIRST SABM frame to BTS2. After receiving this frame, BTS2 sends an EST IND message to BSC2 and returns a UA frame to the MS. Step 9 After the MS accesses the target cell, it sends an HO CMP message to BSC2 and BSC2 forwards this message to the MSC. Step 10 The MSC sends a CLR CMD message to BSC1 and the BSC1 releases the terrestrial resources in the source cell. Step 11 BSC1 sends a CLR CMP message to the MSC. ----End
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The measurement of the incoming external inter-cell handover is performed in the target cell. Figure 11-18 shows the incoming external inter-cell handover. Figure 11-18 Incoming external inter-cell handover MS
BTS1
BSC1
BSC2
MSC
MS
BTS2
MR FROM MS HO RQD HO REQ A CHAN ACTIV CHAN ACTIV ACK HO REQ ACK HO CMD B
HO CMD
HO ACC HO DETECT
HO DETECT
PHY INFO FIRST SABM EST IND UA HO CMP
HO CMP CLR CMD CLR CMP
A: Incoming external inter-cell handover requests B: Incoming external inter-cell handover responses
Table 11-49 lists the counter classification of Incoming External Inter-Cell Handover Measurement per Cell. Table 11-49 Counter classification of Incoming External Inter-Cell Handover Measurement per Cell Counter Classification
Section
Incoming External Inter-Cell Handover Requests per Cell
11.13.2
Incoming External Inter-Cell Handover Responses per Cell
11.13.3
Failed Incoming External Inter-Cell Handovers per Cell
11.13.4
Incoming External Inter-Cell Handover Detection Messages Received by BSC per Cell
11.13.5
Incoming External Inter-Cell Handover Analyzed Measurement per Cell
11.13.6
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11.13.2 Incoming External Inter-Cell Handover Requests per Cell Counter Table 11-50 lists the counters of Incoming External Inter-Cell Handover Requests per Cell. Table 11-50 Counters of Incoming External Inter-Cell Handover Requests per Cell
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Number
Counter
1
H3400W: Incoming External Inter-Cell Handover Requests (SDCCH) (900/850-900/850)
2
H3400X: Incoming External Inter-Cell Handover Requests (SDCCH) (1800/1900-1800/1900)
3
H3400Y: Incoming External Inter-Cell Handover Requests (SDCCH) (900/850-1800/1900)
4
H3400Z: Incoming External Inter-Cell Handover Requests (SDCCH) (1800/1900-900/850)
5
H3409W: Incoming External Inter-Cell Handover Requests (TCH) (900/850900/850)
6
H3409X: Incoming External Inter-Cell Handover Requests (TCH) (1800/1900-1800/1900)
7
H3409Y: Incoming External Inter-Cell Handover Requests (TCH) (900/8501800/1900)
8
H3409Z: Incoming External Inter-Cell Handover Requests (TCH) (1800/1900-900/850)
9
H3401B: Incoming External Inter-Cell Handover TCH Requests (TCHF Only)
10
H3401C: Incoming External Inter-Cell Handover TCH Requests (TCHH Only)
11
H3401D: Incoming External Inter-Cell Handover TCH Requests (TCHF Preferred, Channel Type Unchangeable)
12
H3401E: Incoming External Inter-Cell Handover TCH Requests (TCHH Preferred, Channel Type Unchangeable)
13
H3401G: Incoming External Inter-Cell Handover TCH Requests (TCHF Preferred, Channel Type Changeable)
14
H3401H: Incoming External Inter-Cell Handover TCH Requests (TCHH Preferred, Channel Type Changeable)
15
H3401F: Incoming External Inter-Cell Handover TCH Requests (TCHF or TCHH, Channel Type Unchangeable)
16
H3401I: Incoming External Inter-Cell Handover TCH Requests (TCHF or TCHH, Channel Type Changeable)
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Meaning The handover algorithm in BSC1 notifies BSC1 to initiate an inter-cell handover. If the source cell and the target cell are controlled by two BSCs, an external inter-cell handover is initiated. The measurement is performed in the target cell. The measurement is based on the channel type, the crossing of frequency bands, and the TCH seizure type. Along with Incoming External Inter-Cell Handover Responses per Cell and Failed Incoming External Inter-Cell Handovers per Cell, the counters show the performance of incoming external inter-cell handovers. Along with Outgoing External Inter-Cell Handover Measurement per Cell, the counters show the performance of external inter-cell handovers. The channel involved in the measurement is of the following types: z
SDCCH
z
TCH
The crossing of frequency bands is of the following types: z
900/850 to 900/850
z
1800/1900 to 1800/1900
z
900/850 to 1800/1900
z
1800/1900 to 900/850
The TCH seizure is of the following types: TCHF only TCHH only TCHF preferred, channel type unchangeable TCHH preferred, channel type unchangeable TCHF preferred, channel type changeable TCHH Preferred, Channel Type Changeable TCHF or TCHH, Channel Type Unchangeable TCHF or TCHH, Channel Type Changeable
Trigger Point As shown in Figure 11-18 (A), the measurement is triggered when BSC2 receives an HO REQ message from the MSC. The measurement is based on the channel type, the crossing of frequency bands, and the TCH seizure type.
Formula None.
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11.13.3 Incoming External Inter-Cell Handover Responses per Cell Counter Table 11-51 lists the counters of Incoming External Inter-Cell Handover Responses per Cell. Table 11-51 Counters of Incoming External Inter-Cell Handover Responses per Cell Number
Counter
1
H3410W: Incoming External Inter-Cell Handover Responses (SDCCH) (900/850-900/850)
2
H3410X: Incoming External Inter-Cell Handover Responses (SDCCH) (1800/1900-1800/1900)
3
H3410Y: Incoming External Inter-Cell Handover Responses (SDCCH) (900/850-1800/1900)
4
H3410Z: Incoming External Inter-Cell Handover Responses (SDCCH) (1800/1900-900/850)
5
H3417W: Incoming External Inter-Cell Handover Responses (TCHF) (900/850-900/850)
6
H3417X: Incoming External Inter-Cell Handover Responses (TCHF) (1800/1900-1800/1900)
7
H3417Y: Incoming External Inter-Cell Handover Responses (TCHF) (900/850-1800/1900)
8
H3417Z: Incoming External Inter-Cell Handover Responses (TCHF) (1800/1900-900/850)
9
H3418W: Incoming External Inter-Cell Handover Responses (TCHH) (900/850-900/850)
10
H3418X: Incoming External Inter-Cell Handover Responses (TCHH) (1800/1900-1800/1900)
11
H3418Y: Incoming External Inter-Cell Handover Responses (TCHH) (900/850-1800/1900)
12
H3418Z: Incoming External Inter-Cell Handover Responses (TCHH) (1800/1900-900/850)
Meaning After BSC2 receives an HO REQ message, it requests for a channel from the target cell and activates it. BSC2 requests for speech service resources. If the request succeeds, the BSC2 returns an HO REQ ACK message to the MSC. The measurement is performed in the target cell. The measurement is based on the channel type and the crossing of frequency bands.
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Along with Incoming External Inter-Cell Handover Requests per Cell and Failed Incoming Internal Inter-Cell Handovers per Cell, the counters show the performance of incoming external inter-cell handovers. Along with Outgoing External Inter-Cell Handover Measurement per Cell, the counters show the performance of external inter-cell handovers. The channel involved in the measurement is of the following types: z
SDCCH
z
TCHF
z
TCHH
The crossing of frequency bands is of the following types: z
900/850 to 900/850
z
1800/1900 to 1800/1900
z
900/850 to 1800/1900
z
1800/1900 to 900/850
Trigger Point As shown in Figure 11-18 (B), the measurement is triggered when BSC2 sends an HO REQ ACK to the MSC. The measurement is based on the channel type and the crossing of frequency bands.
Formula None.
11.13.4 Failed Incoming External Inter-Cell Handovers per Cell Counter Table 11-52 lists the counters of Failed Incoming External Inter-Cell Handovers per Cell. Table 11-52 Counters of Failed Incoming External Inter-Cell Handovers per Cell Number
Counter
1
H3420W: Failed Incoming External Inter-Cell Handovers (SDCCH) (900/850-900/850)
2
H3420X: Failed Incoming External Inter-Cell Handovers (SDCCH) (1800/1900-1800/1900)
3
H3420Y: Failed Incoming External Inter-Cell Handovers (SDCCH) (900/850-1800/1900)
4
H3420Z: Failed Incoming External Inter-Cell Handovers (SDCCH) (1800/1900-900/850)
5
H3429W: Failed Incoming External Inter-Cell Handovers (TCH) (900/850900/850)
6
H3429X: Failed Incoming External Inter-Cell Handovers (TCH) (1800/1900-1800/1900)
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Number
Counter
7
H3429Y: Failed Incoming External Inter-Cell Handovers (TCH) (900/8501800/1900)
8
H3429Z: Failed Incoming External Inter-Cell Handovers (TCH) (1800/1900900/850)
9
H342I: Failed Incoming External Inter-Cell Handovers (Invalid Message)
10
H3420A: Failed Incoming External Inter-Cell Handovers (Channel Unavailable) (SDCCH)
11
H3429A: Failed Incoming External Inter-Cell Handovers (Channel Unavailable) (TCH)
12
H342E: Failed Incoming External Inter-Cell Handovers (CIC Unavailable)
13
H342F: Failed Incoming External Inter-Cell Handovers (CIC Allocated)
14
H342B: Failed Incoming External Inter-Cell Handovers (Terrestrial Resource Request Failed)
15
H342H: Failed Incoming External Inter-Cell Handovers (Clear Commands Sent by MSC)
16
H3420C: Failed Incoming External Inter-Cell Handovers (Timer Expired) (SDCCH)
17
H3429Cb: Failed Incoming External Inter-Cell Handovers (Timer Expired) (TCH) (Signaling Channel)
18
H3429Ca: Failed Incoming External Inter-Cell Handovers (Timer Expired) (TCH) (Traffic Channel)
Meaning In the incoming external inter-cell handover procedure, BSC2 measures the related counter when receiving a message that causes a handover failure. The measurement is performed in the target cell. The measurement is based on the channel type, the crossing of frequency bands, and the failure cause. Along with Incoming External Inter-Cell Handover Requests per Cell and Incoming External Inter-Cell Handover Responses per Cell, the counters show the performance of incoming external inter-cell handovers. Along with Outgoing External Inter-Cell Handover Measurement per Cell, the counters show the performance of external inter-cell handovers. The channel involved in the measurement is of the following types: z
SDCCH
z
TCH (traffic channel or signaling channel)
The crossing of frequency bands is of the following types:
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z
900/850 to 900/850
z
1800/1900 to 1800/1900
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900/850 to 1800/1900
z
1800/1900 to 900/850
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The failure causes consist of the following: z
Invalid message
z
Channel unavailable
z
CIC unavailable
z
CIC allocated
z
Terrestrial resource request failed
z
Clear commands sent by MSC
z
Timer expired
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Trigger Point Figure 11-19 shows the trigger points of the counters of Failed Incoming External Inter-Cell Handovers per Cell. Figure 11-19 Trigger points of the counters of Failed Incoming External Inter-Cell Handovers per Cell BSC MS
BTS1
BSC1
MSC
BSC2
BTS2
MS
MR FROM MS HO RQD HO REQ B In the incoming external inter-cell handover procedure
C CHAN ACTIV CHAN ACTIV ACK HO REQ ACK
D HO ACC
HO CMD HO DETECT
HO CMD
HO DETECT
PHY INFO
A
FIRST SABM
E
EST IND UA TIME OUT F HO CMP HO CMP CLR CMD CLR CMP
A: Failed Incoming External Inter-Cell Handovers B: Failed Incoming External Inter-Cell Handovers (Invalid Message) C: Failed Incoming External Inter-Cell Handovers (Channel Unavailable) D: Failed Incoming External Inter-Cell Handovers (Terrestrial Resource Request Failed, CIC Unavailable, CIC Allocated) E: Failed Incoming External Inter-Cell Handovers (Clear Commands Sent by MSC) F: Failed Incoming External Inter-Cell Handovers (Timer Expired)
The trigger points of the counters are as follows: z
Failed Incoming External Inter-Cell Handovers (Invalid Message) BSC2 receives an HO REQ message from the MSC and decodes it. The measurement is triggered when BSC2 detects that the message is invalid.
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Failed Incoming External Inter-Cell Handovers (Channel Unavailable) BSC2 receives an HO REQ message from the MSC and decodes it. BSC2 then requests for a channel from the target cell. The measurement is triggered when the target cell returns a request failure message with the cause of channel unavailable. The measurement is based on the channel type. The channel involved in the measurement is of the following types:
z
−
SDCCH
−
TCH
Failed Incoming External Inter-Cell Handovers (Terrestrial Resource Request Failed, CIC Unavailable, CIC Allocated) BSC2 receives an HO REQ message from the MSC and decodes it. BSC2 then requests for a channel from the target cell. If the request succeeds, BSC2 sends a CHAN ACTIV message to the target cell. After receiving a CHAN ACTIV ACK message, BSC2 requests for the terrestrial resources and terrestrial link resources about speech services.
z
−
If the request for terrestrial resources fails, the measurement of Failed Incoming External Inter-Cell Handovers (Terrestrial Resource Request Failed) is triggered.
−
The CIC resources on the A interface is a key factor of the terrestrial resource request. The MSC sends BSC2 an HO REQ message that carries the CIC. If BSC2 detects that the CIC is unavailable, the measurement of Failed Incoming External Inter-Cell Handovers (Terrestrial Resource Request Failed, CIC Unavailable is triggered.
−
If BSC2 detects that the CIC is already allocated, the measurement of Failed Incoming External Inter-Cell Handovers (Terrestrial Resource Request Failed, CIC Allocated) is triggered.
Failed Incoming External Inter-Cell Handovers (Timer Expired) In the incoming external inter-cell handover procedure, the measurement is triggered when BSC2 receives a TIME OUT message. The measurement is based on the channel type and the TCH service type. The channel involved in the measurement is of the following types: −
SDCCH
−
TCH
The TCH is of the following service types:
z
−
TCH service channel
−
TCH signaling channel
Failed Incoming External Inter-Cell Handovers (Clear Commands Sent by MSC) In the incoming external inter-cell handover procedure, the measurement is triggered when BSC2 receives a CLR CMD message from the MSC.
z
Failed Incoming External Inter-Cell Handovers In the incoming external inter-cell handover procedure, the measurement is triggered when the handover fails.
Formula None.
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11.13.5 Incoming External Inter-Cell Handover Detection Messages Received by BSC per Cell Counter Table 11-51 lists the counters of Incoming External Inter-Cell Handover Detection Messages Received by BSC per Cell. Table 11-53 Counters of Incoming External Inter-Cell Handover Detection Messages Received by BSC per Cell Number
Counter
1
H3440: Incoming External Inter-Cell Handover Detection Messages Received by BSC (SDCCH)
2
H3447: Incoming External Inter-Cell Handover Detection Messages Received by BSC (TCHF)
3
H3448: Incoming External Inter-Cell Handover Detection Messages Received by BSC (TCHH)
Meaning The counters measure the number of times BSC2 receives an HO DETECT message. The measurement is performed in the target cell. The channel involved in the measurement is of the following types: z
SDCCH
z
TCHF
z
TCHH
Trigger Point As shown in Figure 11-19, the measurement is triggered when BSC2 receives an HO DETECT message. The measurement is based on the channel type.
Formula None.
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11.13.6 Incoming External Inter-Cell Handover Analyzed Measurement per Cell Counter Table 11-54 lists the counters of Incoming External Inter-Cell Handover Analyzed Measurement per Cell. Table 11-54 Counters of Incoming External Inter-Cell Handover Analyzed Measurement per Cell Number
Counter
1
CH340: Incoming External Inter-Cell Handover Requests
2
CH343: Successful Incoming External Inter-Cell Handovers
3
CH341: Incoming External Inter-Cell Handover Responses
4
TH343: Success Rate of Incoming External Inter-Cell Handover
5
CH3401: Incoming External Inter-Cell Handover TCH Requests
6
CH344: Incoming External Inter-Cell Handover Detection Messages Received by BSC
7
CH342: Failed Incoming External Inter-Cell Handovers
8
CH342C: Failed Incoming External Inter-Cell Handovers (Timer Expired)
Meaning None.
Trigger Point None.
Formula Incoming External Inter-Cell Handover Requests = [Incoming External Inter-Cell Handover Requests (SDCCH) (900/850-900/850)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (1800/1900-1800/1900)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (900/850-1800/1900)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (1800/1900-900/850)] + [Incoming External Inter-Cell Handover Requests (TCH) (900/850-900/850)] + [Incoming External Inter-Cell Handover Requests (TCH) (1800/1900-1800/1900)] + [Incoming External Inter-Cell Handover Requests (TCH) (900/850-1800/1900)] + [Incoming External Inter-Cell Handover Requests (TCH) (1800/1900-900/850)]
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Successful Incoming External Inter-Cell Handovers = ([Incoming External Inter-Cell Handover Requests (SDCCH) (900/850-900/850)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (1800/1900-1800/1900)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (900/850-1800/1900)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (1800/1900-900/850)] + [Incoming External Inter-Cell Handover Requests (TCH) (900/850-900/850)] + [Incoming External Inter-Cell Handover Requests (TCH) (1800/1900-1800/1900)] + [Incoming External Inter-Cell Handover Requests (TCH) (900/850-1800/1900)] + [Incoming External Inter-Cell Handover Requests (TCH) (1800/1900-900/850)]) ([Failed Incoming External Inter-Cell Handovers (SDCCH) (900/850-900/850)] + [Failed Incoming External Inter-Cell Handovers (SDCCH) (1800/1900-1800/1900)] + [Failed Incoming External Inter-Cell Handovers (SDCCH) (900/850-1800/1900)] + [Failed Incoming External Inter-Cell Handovers (SDCCH) (1800/1900-900/850)] + [Failed Incoming External Inter-Cell Handovers (TCH) (900/850-900/850)] + [Failed Incoming External Inter-Cell Handovers (TCH) (1800/1900-1800/1900)] + [Failed Incoming External Inter-Cell Handovers (TCH) (900/850-1800/1900)] + [Failed Incoming External Inter-Cell Handovers (TCH) (1800/1900-900/850)])
Incoming External Inter-Cell Handover Responses = [Incoming External Inter-Cell Handover Responses (SDCCH) (900/850-900/850)] + [Incoming External Inter-Cell Handover Responses (SDCCH) (1800/1900-1800/1900)] + [Incoming External Inter-Cell Handover Responses (SDCCH) (900/850-1800/1900)] + [Incoming External Inter-Cell Handover Responses (SDCCH) (1800/1900-900/850)] + [Incoming External Inter-Cell Handover Responses (TCHF) (900/850-900/850)] + [Incoming External Inter-Cell Handover Responses (TCHF) (1800/1900-1800/1900)] + [Incoming External Inter-Cell Handover Responses (TCHF) (900/850-1800/1900)] + [Incoming External Inter-Cell Handover Responses (TCHF) (1800/1900-900/850)] + [Incoming External Inter-Cell Handover Responses (TCHH) (900/850-900/850)] + [Incoming External Inter-Cell Handover Responses (TCHH) (1800/1900-1800/1900)] + [Incoming External Inter-Cell Handover Responses (TCHH) (900/850-1800/1900)] + [Incoming External Inter-Cell Handover Responses (TCHH) (1800/1900-900/850)]
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Success Rate of Incoming External Inter-Cell Handover = [Successful Incoming External Inter-Cell Handovers]*{100}/[Incoming External Inter-Cell Handover Requests]
Incoming External Inter-Cell Handover TCH Requests = [Incoming External Inter-Cell Handover TCH Requests (TCHF Only)] + [Incoming External Inter-Cell Handover TCH Requests (TCHH Only)] + [Incoming External Inter-Cell Handover TCH Requests (TCHF Preferred, Channel Type Unchangeable)] + [Incoming External Inter-Cell Handover TCH Requests (TCHH Preferred, Channel Type Unchangeable)] + [Incoming External Inter-Cell Handover TCH Requests (TCHF Preferred, Channel Type Changeable)] + [Incoming External Inter-Cell Handover TCH Requests (TCHH Preferred, Channel Type Changeable)] + [Incoming External Inter-Cell Handover TCH Requests (TCHF or TCHH, Channel Type Unchangeable)] + [Incoming External Inter-Cell Handover TCH Requests (TCHF or TCHH, Channel Type Changeable)]
Incoming External Inter-Cell Handover Detection Messages Received by BSC = [Incoming External Inter-Cell Handover Detection Messages Received by BSC (SDCCH)] + [Incoming External Inter-Cell Handover Detection Messages Received by BSC (TCHF)] + [Incoming External Inter-Cell Handover Detection Messages Received by BSC (TCHH)]
Failed Incoming External Inter-Cell Handovers = [Failed Incoming External Inter-Cell Handovers (SDCCH) (900/850-900/850)] + [Failed Incoming External Inter-Cell Handovers (SDCCH) (1800/1900-1800/1900)] + [Failed Incoming External Inter-Cell Handovers (SDCCH) (900/850-1800/1900)] + [Failed Incoming External Inter-Cell Handovers (SDCCH) (1800/1900-900/850)] + [Failed Incoming External Inter-Cell Handovers (TCH) (900/850-900/850)] + [Failed Incoming External Inter-Cell Handovers (TCH) (1800/1900-1800/1900)] + [Failed Incoming External Inter-Cell Handovers (TCH) (900/850-1800/1900)] + [Failed Incoming External Inter-Cell Handovers (TCH) (1800/1900-900/850)]
Failed Incoming External Inter-Cell Handovers (Timer Expired) =
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[Failed Incoming External Inter-Cell Handovers (Timer Expired) (SDCCH)] + [Failed Incoming External Inter-Cell Handovers (Timer Expired) (TCH) (Signaling Channel)] + [Failed Incoming External Inter-Cell Handovers (Timer Expired) (TCH) (Traffic Channel)]
11.14 Outgoing External Inter-Cell Handover Measurement per Cell 11.14.1 Overview Outgoing External Inter-Cell Handover Measurement per Cell can be classified into Outgoing External Inter-Cell Handover (Excluding Directed Retry) and Outgoing External Inter-Cell Handover (Directed Retry). Outgoing external inter-cell handover (excluding directed retry) As shown in Figure 11-20, after the BSC receives measurement reports from the MS, it uses the handover algorithm to decide whether a handover is required or not. If a handover is required and the source cell (the current cell where the MS is located) and the target cell (the cell where the MS is located after the handover) are controlled by two BSCs, an external inter-cell handover is initiated. The measurement of outgoing external inter-cell handover (excluding directed retry) is performed in the source cell. The procedure of the outgoing external inter-cell handover (excluding directed retry) is as follows: Step 1 BSC1 initiates an external inter-cell handover based on the handover algorithm. Step 2 BSC1 sends an HO RQD message to the MSC. Step 3 Based on the HO RQD message and the relation between the cell and the BSC, the MSC finds BSC2 and sends an HO REQ message to BSC2. Step 4 BSC2 requests for a traffic channel from the target cell. After the request succeeds, BSC2 sends a CHAN ACTIV message to the target cell. After receiving a CHAN ACTIV ACK message from the target cell, BSC2 requests for speech service resources. After the request succeeds, BSC2 sends the MSC an HO REQ ACK message to notify the MSC that the target cell is ready for the MS access. Step 5 The MSC sends an HO CMD message to BSC1 and BSC1 forwards this message to the MS. This message is used to request the MS to access the target cell. Step 6 The MS sends the target cell an HO ACC message to attempt to access the target cell. BTS2 sends an HO DETECT message to BSC2 and a PHY INFO message to the MS. Step 7 The MS sends a FIRST SABM frame to BTS2. After receiving this frame, BTS2 sends an EST IND message to BSC2 and returns a UA frame to the MS. Step 8 After the MS accesses the target cell, it sends an HO CMP message to BSC2 and BSC2 forwards this message to the MSC. Step 9 The MSC sends a CLR CMD message to BSC1 and the BSC1 releases the terrestrial resources in the source cell.
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Step 10 BSC1 sends a CLR CMP message to the MSC. ----End Figure 11-20 Outgoing external inter-cell handover (excluding directed retry) MS
BTS1
BSC1
MSC
BTS2
BSC2
MS
MR FROM MS A HO RQD HO REQ CHAN ACTIV CHAN ACTIV ACK HO REQ ACK HO CMD HO CMD
HO ACC HO DETECT B
HO DETECT
PHY INFO FIRST SABM EST IND UA HO CMP
HO CMP CLR CMD CLR CMP
A: Outgoing external inter-cell handover request (excluding directed retry) B: Outgoing external inter-cell handover response (excluding directed retry)
Outgoing external inter-cell handover (directed retry) The procedure is as follows: Step 1 As shown in Figure 11-21, the MS sends a CHAN RQD message to BTS1 and BTS1 forwards it to BSC1. Step 2 BSC1 requests for a signaling channel from the source cell. If the request succeeds, BSC1 sends a CHAN ACTIV message to the source cell. After receiving a CHAN ACTIV ACK message from the source cell, BSC1 sends an IMM ASS CMD to the MS through the source cell. Step 3 The MS sends a FIRST ASBM frame to BTS1 and BTS1 returns a UA frame. After receiving the FIRST ASBM frame, BTS1 sends an EST IND message to BSC1. Step 4 BSC1 extracts the CM SERV REQ message carried in the EST IND message, encapsulates it into a connection request (CR) message, and sends the CR message to the MSC. Step 5 The MSC returns a Connection Confirm (CC) message. The MM connection between the MS and the MSC is established.
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Step 6 After the transmission of the CM SERV ACCEPT, SETUP, and CALL PROCEEDING messages, the MSC sends an ASSIGN REQ message to BSC1. Step 7 BSC1 selects a kind of assignment procedure (normal assignment procedure, mode modify procedure, directed retry procedure) based on the load of the source cell. Step 8 If the subsequent services are unavailable or the subsequent services affect the existing services because the cell load is too high, BSC1 selects the directed retry procedure. If the source cell and the target cell are controlled by two BSCs, the directed retry is performed through an external inter-cell handover procedure. If the measurement is performed in the source cell, the outgoing external inter-cell handover procedure is initiated. Step 9 BSC1 sends an HO RQD message to the MSC to initiate an external inter-cell handover. Step 10 Based on the HO RQD message and the relation between the cell and the BSC, the MSC finds BSC2 and sends an HO REQ message to BSC2. Step 11 BSC2 requests for a channel from the target cell. After the request succeeds, BSC2 sends a CHAN ACTIV message to the target cell. After receiving a CHAN ACTIV ACK message from the target cell, BSC2 requests for speech service resources. After the request succeeds, BSC2 sends the MSC an HO REQ ACK message to notify the MSC that the target cell is ready for the MS access. Step 12 The MSC sends an HO CMD message to BSC1 and BSC1 forwards this message to the MS. This message is used to request the MS to access the target cell. Step 13 The MS sends the target cell an HO ACC message to attempt to access the target cell. BTS2 sends an HO DETECT message to BSC2 and a PHY INFO message to the MS. Step 14 BSC2 sends an HO DETECT message to the MSC. The MS sends a FIRST SABM frame to BTS2. After receiving this frame, BTS2 returns a UA frame to the MS and sends an EST IND message to BSC2. Step 15 The MS sends an HO CMP message to BSC2 and BSC2 forwards this message to the MSC. Step 16 The MSC sends a CLR CMD message to BSC1 and the BSC1 releases the terrestrial resources in the source cell. Step 17 BSC1 sends a CLR CMP message to the MSC. ----End
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Figure 11-21 Outgoing external inter-cell handover (Directed Retry) MS
BTS1(CELL1)
BSC1
BSC2
MSC
BTS2(CELLO)
MS
CHAN REQ CHAN RED CHAN ACTIV CHAN ACTIV ACK IMM ASS CMD FIRST SABM UA
EST IND（CM SERV REQ）
CR(CM SERV REQ) CC
CM SERV ACCEPT SETUP CALL PROCEEDING
ASSIGN REQ A HO RQD HO REQ CHAN ACTIV CHAN ACTIV ACK HO REQ ACK HO CMD HO CMD
HO ACC HO DETECT PHY INFO
HO DETECT
FIRST SABM B
EST IND UA HO CMP HO CMP CLR CMD CLR CMP
A: Outgoing external inter-cell handover requests (Directed Retry) B: Outgoing external inter-cell handover responses (Directed Retry)
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Table 11-55 lists the counter classification of Outgoing External Inter-Cell Handover Measurement per Cell. Table 11-55 Counter classification of outgoing External Inter-Cell Handover Measurement per Cell Counter Classification
Section
Outgoing External Inter-Cell Handover Requests per Cell
11.14.2
Outgoing External Inter-Cell Handover Commands per Cell
11.14.3
Failed Outgoing External Inter-Cell Handovers per Cell
11.14.4
Outgoing External Inter-Cell Handover Analyzed Measurement per Cell
11.14.5
11.14.2 Outgoing External Inter-Cell Handover Requests per Cell Counter Table 11-56 lists the counters of Outgoing External Inter-Cell Handover Requests per Cell (Excluding Directed Retry). Table 11-56 Counters of Outgoing External Inter-Cell Handover Requests per Cell (Excluding Directed Retry)
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Number
Counter
1
H3300W: Outgoing External Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (900/850-900/850)
2
H3300X: Outgoing External Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (1800/1900-1800/1900)
3
H3300Y: Outgoing External Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)
4
H3300Z: Outgoing External Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)
5
H3307W: Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (900/850-900/850)
6
H3307X: Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (1800/1900-1800/1900)
7
H3307Y: Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (900/850-1800/1900)
8
H3307Z: Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (1800/1900-900/850)
9
H3308W: Outgoing External Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (900/850-900/850)
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Number
Counter
10
H3308X: Outgoing External Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (1800/1900-1800/1900)
11
H3308Y: Outgoing External Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (900/850-1800/1900)
12
H3308Z: Outgoing External Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (1800/1900-900/850)
13
H330A: Outgoing External Inter-Cell Handover Requests (Uplink Quality)
14
H330B: Outgoing External Inter-Cell Handover Requests (Downlink Quality)
15
H330C: Outgoing External Inter-Cell Handover Requests (Uplink Strength)
16
H330D: Outgoing External Inter-Cell Handover Requests (Downlink Strength)
17
H330E: Outgoing External Inter-Cell Handover Requests (Timing Advance)
18
H330F: Outgoing External Inter-Cell Handover Requests (Better Cell)
19
H330G: Outgoing External Inter-Cell Handover Requests (Load)
20
H330H: Outgoing External Inter-Cell Handover Requests (Rapid Level Drop)
21
H330I: Outgoing External Inter-Cell Handover Requests (MSC Intervention)
22
H330J: Outgoing External Inter-Cell Handover Requests (OM Intervention)
23
H330L: Outgoing External Inter-Cell Handover Requests (Other Causes)
Table 11-57 lists the counters of Outgoing External Inter-Cell Handover Requests per Cell (Directed Retry). Table 11-57 Counters of Outgoing External Inter-Cell Handover Requests per Cell (Directed Retry) Number
Counter
1
H3301W: Outgoing External Inter-Cell Handover Requests (Directed Retry) (900/850-900/850)
2
H3301X: Outgoing External Inter-Cell Handover Requests (Directed Retry) (1800/1900-1800/1900)
3
H3301Y: Outgoing External Inter-Cell Handover Requests (Directed Retry) (900/850-1800/1900)
4
H3301Z: Outgoing External Inter-Cell Handover Requests (Directed Retry) (1800/1900-900/850)
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Table 11-58 lists the counters of Outgoing External Inter-Cell Handover Requests per Cell (Including Directed Retry). Table 11-58 Counters of Outgoing External Inter-Cell Handover Requests per Cell (Including Directed Retry) Number
Counter
1
H3303: Outgoing External Inter-Cell Handover Requests (Different Signaling Points)
Meaning The descriptions of the counters are as follows: z
Outgoing External Inter-Cell Handover Requests (Excluding Directed Retry) The counters measure the number of outgoing external inter-cell handover requests initiated by the handover algorithm. The measurement is performed in the source cell. The measurement is based on the channel type, different signaling points, and the handover cause. Along with Outgoing External Inter-Cell Handover Commands per Cell and Failed Outgoing External Inter-Cell Handovers per Cell, the counters show the performance of outgoing external inter-cell handover. Along with Incoming External Inter-Cell Handover Measurement per Cell, the counters show the performance of external intercell handovers. The channel involved in the measurement is of the following types: −
SDCCH
−
TCHF
−
TCHH
The handover between different signaling points in a BSC is also called outgoing external inter-cell handover. The handover causes consist of the following:
z
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−
Uplink quality
−
Downlink quality
−
Uplink strength
−
Downlink strength
−
Timing advance
−
Better cell
−
Load
−
Rapid level drop
−
MSC intervention
−
OM intervention
−
EDGE coverage
−
Other causes
Outgoing External Inter-Cell Handover Requests (Directed Retry)
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The counters measure the number of outgoing external inter-cell handover requests in the directed retry procedure. Along with Outgoing External Inter-Cell Handover Commands per Cell and Failed Outgoing External Inter-Cell Handovers per Cell, the counters show the performance of outgoing external inter-cell handovers. Along with Incoming External Inter-Cell Handover Measurement per Cell, the counters show the performance of external intercell handovers.
Trigger Point The trigger points of the counters are as follows: z
Outgoing External Inter-Cell Handover Requests (Excluding Directed Retry) As shown in Figure 11-20 (A), the measurement is triggered when the BSC decides to initiate an outgoing external inter-cell handover based on the measurement reports. The measurement is based on the channel type, different signaling points, and the handover cause.
z
Outgoing External Inter-Cell Handover Requests (Directed Retry) As shown in Figure 11-21 (A), the measurement is triggered when the BSC initiates a directed retry procedure.
Formula None.
11.14.3 Outgoing External Inter-Cell Handover Commands per Cell Counter Table 11-59 lists the counters of Outgoing External Inter-Cell Handover Commands per Cell (Excluding Directed Retry). Table 11-59 Counters of Outgoing External Inter-Cell Handover Commands per Cell (Excluding Directed Retry) Number
Counter
1
H3310W: Outgoing External Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (900/850-900/850)
2
H3310X: Outgoing External Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (1800/1900-1800/1900)
3
H3310Y: Outgoing External Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)
4
H3310Z: Outgoing External Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)
5
H3317W: Outgoing External Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (900/850-900/850)
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Number
Counter
6
H3317X: Outgoing External Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (1800/1900-1800/1900)
7
H3317Y: Outgoing External Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (900/850-1800/1900)
8
H3317Z: Outgoing External Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (1800/1900-900/850)
9
H3318W: Outgoing External Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (900/850-900/850)
10
H3318X: Outgoing External Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (1800/1900-1800/1900)
11
H3318Y: Outgoing External Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (900/850-1800/1900)
12
H3318Z: Outgoing External Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (1800/1900-900/850)
13
H331A: Outgoing External Inter-Cell Handover Commands (Uplink Quality)
14
H331B: Outgoing External Inter-Cell Handover Commands (Downlink Quality)
15
H331C: Outgoing External Inter-Cell Handover Commands (Uplink Strength)
16
H331D: Outgoing External Inter-Cell Handover Commands (Downlink Strength)
17
H331E: Outgoing External Inter-Cell Handover Commands (Timing Advance)
18
H331F: Outgoing External Inter-Cell Handover Commands (Better Cell)
19
H331G: Outgoing External Inter-Cell Handover Commands (Load)
20
H331H: Outgoing External Inter-Cell Handover Commands (Rapid Level Drop)
21
H331I: Outgoing External Inter-Cell Handover Commands (MSC Intervention)
22
H331J: Outgoing External Inter-Cell Handover Commands (OM Intervention)
23
H331L: Outgoing External Inter-Cell Handover Commands (Other Causes)
Table 11-60 lists the counters of Outgoing External Inter-Cell Handover Commands per Cell (Directed Retry). Table 11-60 Counters of Outgoing External Inter-Cell Handover Commands per Cell (Directed Retry)
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Number
Counter
1
H3311W: Outgoing External Inter-Cell Handover Commands (Directed Retry) (900/850-900/850)
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Number
Counter
2
H3311X: Outgoing External Inter-Cell Handover Commands (Directed Retry) (1800/1900-1800/1900)
3
H3311Y: Outgoing External Inter-Cell Handover Commands (Directed Retry) (900/850-1800/1900)
4
H3311Z: Outgoing External Inter-Cell Handover Commands (Directed Retry) (1800/1900-900/850)
Table 11-61 lists the counters of Outgoing External Inter-Cell Handover Commands per Cell (Including Directed Retry). Table 11-61 Counters of Outgoing External Inter-Cell Handover Commands per Cell (Including Directed Retry) Number
Counter
1
H3313: Outgoing External Inter-Cell Handover Commands (Different Signaling Points)
Meaning The descriptions of the counters are as follows: z
Outgoing External Inter-Cell Handover Commands (Excluding Directed Retry) The counters measure the number of times BSC1 sends an HO CMD message to the MS. The measurement is based on the crossing of frequency bands, the channel type, different signaling points, and the handover cause. Along with Outgoing External Inter-Cell Handover Requests per Cell and Failed Outgoing External Inter-Cell Handovers per Cell, the counters show the performance of outgoing external inter-cell handovers. Along with Incoming External Inter-Cell Handover Measurement per Cell, the counters show the performance of external intercell handovers. The crossing of frequency bands is of the following types: −
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
−
1800/1900 to 900/850
The channel involved in the measurement is of the following types: −
SDCCH
−
TCHF
−
TCHH
The handover between different signaling points in a BSC is also called outgoing external inter-cell handover. The handover causes consist of the following:
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z
−
Uplink quality
−
Downlink quality
−
Uplink strength
−
Downlink strength
−
Timing advance
−
Better cell
−
Load
−
Rapid level drop
−
MSC intervention
−
OM intervention
−
EDGE coverage
−
Other causes
Outgoing External Inter-Cell Handover Commands (Directed Retry) In the directed retry procedure, the counters measure the number of times the BSC sends an HO CMD message to the MS. The measurement is based on the crossing of frequency bands and different signaling points. Along with Outgoing External Inter-Cell Handover Requests per Cell and Failed Outgoing External Inter-Cell Handovers per Cell, the counters show the performance of outgoing external inter-cell handovers. Along with Incoming External Inter-Cell Handover Measurement per Cell, the counters show the performance of external intercell handovers. The crossing of frequency bands is of the following types: −
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
−
1800/1900 to 900/850
The handover between different signaling points in a BSC is also called outgoing external inter-cell handover.
Trigger Point The trigger points of the counters are as follows: z
Outgoing External Inter-Cell Handover Commands (Excluding Directed Retry) As shown in Figure 11-20 (B), in the outgoing external inter-cell (excluding directed retry) procedure, the measurement is triggered when the BSC sends an HO CMD message to the MS. The measurement is performed in the source cell. The measurement is based on the crossing of frequency bands, the channel type, different signaling points, and the handover cause.
z
Outgoing External Inter-Cell Handover Commands (Directed Retry) As shown in Figure 11-21 (B), in the outgoing external inter-cell handover (directed retry) procedure, the measurement is triggered when the BSC sends an HO CMD message to the MS. The measurement is performed in the source cell. The measurement is based on the crossing of frequency bands and different signaling points.
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Formula None.
11.14.4 Failed Outgoing External Inter-Cell Handovers per Cell Counter Table 11-62 lists the counters of Failed Outgoing External Inter-Cell Handovers per Cell (Excluding Directed Retry). Table 11-62 Counters of Failed Outgoing External Inter-Cell Handovers per Cell (Excluding Directed Retry) Number
Counter
1
H3320W: Failed Outgoing External Inter-Cell Handovers (SDCCH) (900/850-900/850)
2
H3320X: Failed Outgoing External Inter-Cell Handovers (SDCCH) (1800/1900-1800/1900)
3
H3320Y: Failed Outgoing External Inter-Cell Handovers (SDCCH) (900/850-1800/1900)
4
H3320Z: Failed Outgoing External Inter-Cell Handovers (SDCCH) (1800/1900-900/850)
5
H3327W: Failed Outgoing External Inter-Cell Handovers (TCHF) (900/850900/850)
6
H3327X: Failed Outgoing External Inter-Cell Handovers (TCHF) (1800/1900-1800/1900)
7
H3327Y: Failed Outgoing External Inter-Cell Handovers (TCHF) (900/8501800/1900)
8
H3327Z: Failed Outgoing External Inter-Cell Handovers (TCHF) (1800/1900-900/850)
9
H3328W: Failed Outgoing External Inter-Cell Handovers (TCHH) (900/850900/850)
10
H3328X: Failed Outgoing External Inter-Cell Handovers (TCHH) (1800/1900-1800/1900)
11
H3328Y: Failed Outgoing External Inter-Cell Handovers (TCHH) (900/8501800/1900)
12
H3328Z: Failed Outgoing External Inter-Cell Handovers (TCHH) (1800/1900-900/850)
13
H3322A: Failed Outgoing External Inter-Cell Handovers (Uplink Quality)
14
H3322B: Failed Outgoing External Inter-Cell Handovers (Downlink Quality)
15
H3322C: Failed Outgoing External Inter-Cell Handovers (Uplink Strength)
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Number
Counter
16
H3322D: Failed Outgoing External Inter-Cell Handovers (Downlink Strength)
17
H3322E: Failed Outgoing External Inter-Cell Handovers (Timing Advance)
18
H3322F: Failed Outgoing External Inter-Cell Handovers (Better Cell)
19
H3322G: Failed Outgoing External Inter-Cell Handovers (Load)
20
H3322H: Failed Outgoing External Inter-Cell Handovers (Rapid Level Drop)
21
H3322I: Failed Outgoing External Inter-Cell Handovers (MSC Intervention)
22
H3322J: Failed Outgoing External Inter-Cell Handovers (OM Intervention)
23
H3322L: Failed Outgoing External Inter-Cell Handovers (Other Causes)
24
H332Da: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Unspecified)
25
H332Db: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Channel Unacceptable)
26
H332Dc: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Timer Expired)
27
H332Dd: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, No Activity on the Radio Path)
28
H332De: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Preemptive Release)
29
H332Df: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Handover Failed, Timing Advance out of Range)
30
H332Dg: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Channel Mode Unavailable)
31
H332Dh: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Frequency Unavailable)
32
H332Di: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Call Already Cleared)
33
H332Dj: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Semantically Incorrect Message)
34
H332Dk: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Invalid Mandatory Information)
35
H332Dl: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Message Type Non-existent or Not Implemented)
36
H332Dm: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Message Type Not Compatible with Protocol State)
37
H332Dn: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Conditional IE Error)
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Number
Counter
38
H332Do: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (No Cell Allocation Available)
39
H332Dp: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Protocol Error Unspecified)
40
H332Dq: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Other Causes)
41
H3320L: Failed Outgoing External Inter-Cell Handovers (T7 Expiry) (SDCCH)
42
H3327Lb: Failed Outgoing External Inter-Cell Handovers (T7 Expiry) (TCHF) (Signaling Channel)
43
H3328Lb: Failed Outgoing External Inter-Cell Handovers (T7 Expiry) (TCHH) (Signaling Channel)
44
H3320C: Failed Outgoing External Inter-Cell Handovers (T8 Expiry) (SDCCH) (Excluding Directed Retry)
45
H3327Cb: Failed Outgoing External Inter-Cell Handovers (T8 Expiry) (TCHF) (Signaling Channel)
46
H3328Cb: Failed Outgoing External Inter-Cell Handovers (T8 Expiry) (TCHH) (Signaling Channel)
Table 11-63 lists the counters of Failed Outgoing External Inter-Cell Handovers per Cell (Directed Retry). Table 11-63 Counters of Failed Outgoing External Inter-Cell Handovers per Cell (Directed Retry) Number
Counter
1
H3321W: Failed Outgoing External Inter-Cell Handovers (Directed Retry) (900/850-900/850)
2
H3321X: Failed Outgoing External Inter-Cell Handovers (Directed Retry) (1800/1900-1800/1900)
3
H3321Y: Failed Outgoing External Inter-Cell Handovers (Directed Retry) (900/850-1800/1900)
4
H3321Z: Failed Outgoing External Inter-Cell Handovers (Directed Retry) (1800/1900-900/850)
5
H3321L: Failed Outgoing External Inter-Cell Handovers (T7 Expired) (Directed Retry)
6
H3321C: Failed Outgoing External Inter-Cell Handovers (T8 Expired) (Directed Retry)
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Table 11-64 lists the counters of Failed Outgoing External Inter-Cell Handovers per Cell (Including Directed Retry). Table 11-64 Counters of Failed Outgoing External Inter-Cell Handovers per Cell (Including Directed Retry)
11-154
Number
Counter
1
H332Ka: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (OM Intervention)
2
H332Kb: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Equipment Failure)
3
H332Kc: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (No Radio Resource Available)
4
H332Kd: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Requested Terrestrial Resource Unavailable)
5
H332Ke: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (BSS not Equipped)
6
H332Kf: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Invalid Cell)
7
H332Kg: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Requested Transcoding/Rate Adaption Unavailable)
8
H332Kh: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Circuit Pool Mismatch)
9
H332Ki: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Requested Speech Version Unavailable)
10
H332Kj: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Ciphering Algorithm not Supported)
11
H332Kk: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Terrestrial circuit already allocated)
12
H332Kl: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Invalid Message)
13
H332Km: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Protocol Error between BSS and MSC)
14
H332Kn: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Other Causes)
15
H332Ha: Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Radio Interface Message Failure)
16
H332Hb: Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Radio Interface Failure)
17
H332Hc: Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (OM Intervention)
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Number
Counter
18
H332Hd: Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Equipment Failure)
19
H332He: Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Preemption)
20
H332Hf: Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Invalid Message)
21
H332Hg: Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Protocol Error between BSS and MSC)
22
H332Hh: Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Other Causes)
23
H332G: Failed Outgoing External Inter-Cell Handovers (A-Interface Failure)
24
H3327La: Failed Outgoing External Inter-Cell Handovers (T7 Expired) (TCHF) (Traffic Channel)
25
H3328La: Failed Outgoing External Inter-Cell Handovers (T7 Expired) (TCHH) (Traffic Channel)
26
H3327Ca: Failed Outgoing External Inter-Cell Handovers (T8 Expired) (TCHF) (Traffic Channel)
27
H3328Ca: Failed Outgoing External Inter-Cell Handovers (T8 Expired) (TCHH) (Traffic Channel)
28
H332Ka: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (OM Intervention)
29
H3323: Failed Outgoing External Inter-Cell Handovers (Different Signaling Points)
Meaning z
Failed Outgoing External Inter-Cell Handovers (Excluding Directed Retry) In the outgoing external inter-cell handover (excluding directed retry) procedure, the BSC measures the related counter when the handover fails. The measurement is based on the crossing of frequency bands, channel type, different signaling points, reject cause, RR cause, clear command sent by MSC and A-interface failure, timer expired, and handover cause. Along with Outgoing External Inter-Cell Handover Requests per Cell and Outgoing External Inter-Cell Handover Commands per Cell, the counters show the performance of outgoing external inter-cell handovers. Along with Incoming External Inter-Cell Handover Measurement per Cell, the counters show the performance of external intercell handovers. The crossing of frequency bands is of the following types:
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−
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
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1800/1900 to 900/850
The channel involved in the measurement is of the following types: −
SDCCH
−
TCHF
−
TCHH
The handover between different signaling points in a BSC is also called outgoing external inter-cell handover. The reject causes consist of the following: −
OM intervention
−
Equipment failure
−
No radio resource available
−
Requested terrestrial resource unavailable
−
BSS not equipped
−
Invalid Cell
−
Requested transcoding/rate adaption unavailable
−
Circuit pool mismatch
−
Requested Speech version unavailable
−
Ciphering algorithm not supported
−
Terrestrial circuit already allocated
−
Invalid message
−
Protocol Error between BSS and MSC
−
Other causes
The RR causes of reconnection to old channels consist of the following: −
Abnormal release, unspecified
−
Abnormal release, channel unacceptable
−
Abnormal release, timer expired
−
Abnormal release, no activity on the radio path
−
Preemptive release
−
Handover failed, timing advance out of range
−
Channel mode unavailable
−
Frequency unavailable
−
Call already cleared
−
Semantically incorrect message
−
Invalid mandatory information
−
Message type non-existent or not implemented
−
Message type not compatible with protocol state
−
Conditional IE error
−
No cell allocation available
−
Protocol error unspecified
−
Other causes
The clear commands sent by MSC and A-interface failure consist of the following: −
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Radio interface failure
−
OM intervention
−
Equipment failure
−
Preemption
−
Invalid message
−
Protocol Error between BSS and MSC
−
Other causes
11 Call Measurement
The A interface failure occurs when the message such as MSC reset and SCCP links disruption is sent on the A interface. The timers involved in the measurement consist of T7 and T8. T7 is triggered to wait for an HO CMD message from the MSC after BSC1 sends an HO RQD message to the MSC. T8 is triggered to wait for a CLR CMD message from the MSC after BSC1 sends an HO CMD message to the MS through the source cell. The handover causes consist of the following:
z
−
Uplink quality
−
Downlink quality
−
Uplink strength
−
Downlink strength
−
Timing advance
−
Better cell
−
Load
−
Rapid level drop
−
MSC intervention
−
OM intervention
−
EDGE coverage
−
Other causes
Failed Outgoing External Inter-Cell Handovers (Directed Retry) In the outgoing external inter-cell handover (directed retry) procedure, the BSC measures the related counter when the handover fails. The measurement is based on the crossing of frequency bands, different signaling points, reject cause, clear command sent by MSC and A-interface failure, and timer expired. Along with Outgoing External Inter-Cell Handover Requests per Cell and Outgoing External Inter-Cell Handover Commands per Cell, the counters show the performance of outgoing external inter-cell handovers. Along with Incoming External Inter-Cell Handover Measurement per Cell, the counters show the performance of external intercell handovers. The crossing of frequency bands is of the following types: −
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
−
1800/1900 to 900/850
The handover between different signaling points in a BSC is also called outgoing external inter-cell handover. The reject causes consist of the following: −
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OM intervention
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Equipment failure
−
No radio resource available
−
Requested terrestrial resource unavailable
−
BSS not equipped
−
Invalid Cell
−
Requested transcoding/rate adaption unavailable
−
Circuit pool mismatch
−
Requested speech version unavailable
−
Ciphering algorithm not supported
−
Terrestrial circuit already allocated
−
Invalid message
−
Protocol error between BSS and MSC
−
Other causes
The clear commands sent by MSC and A-interface failure consist of the following: −
Radio interface message failure
−
Radio interface failure
−
OM intervention
−
Equipment failure
−
Preemption
−
Invalid message
−
Protocol error between BSS and MSC
−
Other causes
The A interface failure occurs when the message such as MSC reset and SCCP links disruption is sent on the A interface. The timers involved in the measurement consist of T7 and T8. T7 is triggered to wait for an HO CMD message from the MSC after BSC1 sends an HO RQD message to the MSC. T8 is triggered to wait for a CLR CMD message from the MSC after BSC1 sends an HO CMD message to the MS through the source cell.
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Trigger Point Figure 11-22 and Figure 11-23 show the trigger points of Failed Outgoing External Inter-Cell Handovers (Excluding Directed Retry) and Failed Outgoing External Inter-Cell Handovers (Directed Retry) respectively. Figure 11-22 Trigger points of Failed Outgoing External Inter-Cell Handovers (Excluding Directed Retry) MS
BTS1
BSC1
MSC
BSC2
MS
BTS2
MR FROM MS HO RQD HO REQ HO RQD REJ C
HO FAIL
HO REQ ACK
T7 expired
Resource request failed In the outgoing external inter-cell handover procedure
CHAN ACTIV CHAN ACTIV ACK
G
HO ACC HO CMD
HO CMD
HO DETECT HO DETECT
PHY INFO
A
FIRST SABM
Reconnection to old channel
E
EST IND UA
F
D T7 expired H
HO CMP HO CMP CLR CMD CLR CMP
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Figure 11-23 Failed Outgoing External Inter-Cell Handovers (Directed Retry) MS
BTS1(CELL1)
BSC1
BSC2
MSC
BTS2(CELL0)
MS
CHAN REQ CHAN RQD CHAN ACTIV CHAN ACTIV ACK IMM ASS CMD FIRST SABM UA EST IND(CM SERV REQ)
CR(CM SERV REQ) CC
CM SERV ACCEPT SETUP CALL PROCEEDING ASSIGN REQ HO RQD HO REQ
HO RQD REJ C
G
Resource request failed
HO FAIL
HO REQ ACK
T7 expired
In the outgoing external inter-cell handover (directed retry) procedure
CHAN ACTIV CHAN ACTIV ACK HO ACC
B HO CMD
HO CMD
HO DETECT
HO DETECT PHY INFO
E
FIRST SABM F
EST IND
T8 expired
UA HO CMP
H HO CMP CLR CMD CLR CMP
A: Failed Outgoing External Inter-Cell Handovers (Excluding Directed Retry) B: Failed Outgoing External Inter-Cell Handovers (Directed Retry) C: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) D: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) E: Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) F: Failed Outgoing Internal Inter-Cell Handovers (A-Interface Failure) G: Failed Outgoing Internal Inter-Cell Handovers (T7 Expired) H: Failed Outgoing Internal Inter-Cell Handovers (T8 Expired)
The trigger points of the counters are as follows:
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Failed Outgoing External Inter-Cell Handovers (Excluding Directed Retry) As shown in Figure 11-22, in the outgoing external inter-cell handover (excluding directed retry) procedure, the related measurement is triggered when the handover fails. The measurement is based on the crossing of frequency bands, channel type, different signaling points, and handover cause. The crossing of frequency bands is of the following types: −
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
−
1800/1900 to 900/850
The channel involved in the measurement is of the following types: −
SDCCH
−
TCHF
−
TCHH
The handover between different signaling points in a BSC is also called outgoing external inter-cell handover. The handover causes consist of the following:
z
−
Uplink quality
−
Downlink quality
−
Uplink strength
−
Downlink strength
−
Timing advance
−
Better cell
−
Load
−
Rapid level drop
−
MSC intervention
−
OM intervention
−
EDGE coverage
−
Other causes
Failed Outgoing External Inter-Cell Handovers (Directed Retry) As shown in Figure 11-22, in the outgoing external inter-cell handover (directed retry) procedure, the related measurement is triggered when the handover fails. The measurement is based on the crossing of frequency bands and the different signaling points. The crossing of frequency bands is of the following types: −
900/850 to 900/850
−
1800/1900 to 1800/1900
−
900/850 to 1800/1900
−
1800/1900 to 900/850
The handover between different signaling points in a BSC is also called outgoing external inter-cell handover. z
Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) As shown in Figure 11-22 and Figure 11-23, when the BSC receives an HO FAIL message from BSC2, it analyzes the failure cause and sends an HO RQD REJ message to
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BSC1. The related measurement is triggered when the MSC sends an HO RQD REJ message to BSC1. The measurement is based on the reject cause carried in the HO RQD REJ message. The reject causes consist of the following:
z
−
OM intervention
−
Equipment failure
−
No radio resource available
−
Requested terrestrial resource unavailable
−
BSS not equipped
−
Invalid cell
−
Requested transcoding/rate adaption unavailable
−
Circuit pool mismatch
−
Requested Speech version unavailable
−
Ciphering algorithm not supported
−
Terrestrial circuit already allocated
−
Invalid message
−
Protocol error between BSS and MSC
−
Other cause
Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) As shown in Figure 11-22, in the outgoing external inter-cell handover (excluding directed retry) procedure, the measurement is triggered when the MS reconnects to the old channel and sends an HO FAIL message on the old channel. The measurement is based on the RR cause. The RR causes consist of the following:
z
11-162
−
Abnormal release, unspecified
−
Abnormal release, channel unacceptable
−
Abnormal release, timer expired
−
Abnormal release, no activity on the radio path
−
Preemptive release
−
Handover failed, timing advance out of range
−
Channel mode unavailable
−
Frequency unavailable
−
Call already cleared
−
Semantically incorrect message
−
Invalid mandatory information
−
Message type non-existent or not implemented
−
Message type not compatible with protocol state
−
Conditional IE error
−
No cell allocation available
−
Protocol error unspecified
−
Other causes
Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC)
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As shown in Figure 11-22 and Figure 11-23, in the outgoing external inter-cell handover (including directed retry) procedure, the measurement is triggered when BSC1 receives a CLR CMD message from the MSC. The measurement is based on the cause carried in the CLR CMD message. The causes consist of the following:
z
−
Radio interface message failure
−
Radio interface failure
−
OM intervention
−
Equipment failure
−
Preemption
−
Invalid message
−
Protocol error between BSS and MSC
−
Other causes
Failed Outgoing External Inter-Cell Handovers (A-Interface Failure) As shown in Figure 11-22 and Figure 11-23, in the outgoing external inter-cell handover (including directed retry) procedure, the measurement is triggered when BSC1 receives an A interface failure message. The measurement is performed in the source cell.
z
Failed Outgoing External Inter-Cell Handovers (T7 Expired) As shown in Figure 11-22 and Figure 11-23, in the outgoing external inter-cell handover (including directed retry) procedure, the measurement is triggered when T7 expires. T7 is triggered to wait for an HO CMD message from the MSC after BSC1 sends an HO RQD message to the MSC. The measurement is based on the channel type. The channel involved in the measurement is of the following types: −
SDCCH
−
TCHF
−
TCHH
If directed retry is performed in the outgoing external inter-cell handover procedure, the channel involved in the measurement is a traffic channel. If no directed retry is performed in the outgoing external inter-cell handover procedure, the channel involved in the measurement can be a traffic channel or a signaling channel. z
Failed Outgoing External Inter-Cell Handovers (T8 Expired) As shown in Figure 11-22 and Figure 11-23, in the outgoing external inter-cell handover (including directed retry) procedure, the measurement is triggered when T8 expires. T8 is triggered to wait for a CLR CMD message from the MSC after BSC1 sends an HO CMD message to the MS through the source cell. If T8 expires, the MS does not access the target cell or reconnect to the old channel within the scheduled time. The measurement is based on the channel type. If directed retry is performed in the outgoing external inter-cell handover procedure, the channel involved in the measurement is a traffic channel. If no directed retry is performed in the outgoing external inter-cell handover procedure, the channel involved in the measurement can be a traffic channel or a signaling channel.
Formula None.
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11.14.5 Outgoing External Inter-Cell Handover Analyzed Measurement per Cell Counter Table 11-65 lists the counters of Outgoing External Inter-Cell Handover Analyzed Measurement per Cell. Table 11-65 Counters of Outgoing External Inter-Cell Handover Analyzed Measurement per Cell Number
Counter
1
CH330: Outgoing External Inter-Cell Handover Requests
2
CH333: Successful Outgoing External Inter-Cell Handovers
3
CH331: Outgoing External Inter-Cell Handover Commands
4
CH332: Failed Outgoing External Inter-Cell Handovers
5
TH333: Success Rate of Outgoing External Inter-Cell Handover
6
CH332K: Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected)
7
CH332D: Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels)
8
CH332H: Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC)
9
CH332L: Failed Outgoing External Inter-Cell Handovers (T7 Expired)
10
CH332C: Failed Outgoing External Inter-Cell Handovers (T8 Expired)
Meaning None.
Trigger Point None.
Formula Outgoing External Inter-Cell Handover Requests = [Outgoing External Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (900/850-900/850)] + [Outgoing External Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)] +
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[Outgoing External Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (900/850-900/850)] + [Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (900/850-900/850)] + [Outgoing External Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Requests (Directed Retry) (900/850-900/850)] + [Outgoing External Inter-Cell Handover Requests (Directed Retry) (1800/1900-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (Directed Retry) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (Directed Retry) (1800/1900-900/850)]
Successful Outgoing External Inter-Cell Handovers = [Outgoing External Inter-Cell Handover Requests][Failed Outgoing External Inter-Cell Handovers]
Outgoing External Inter-Cell Handover Commands = [Outgoing External Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (900/850-900/850)] + [Outgoing External Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Outgoing External Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (900/850-900/850)] +
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[Outgoing External Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Outgoing External Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Commands (TCHF) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (900/850-900/850)] + [Outgoing External Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Outgoing External Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Commands (TCHH) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Commands (Directed Retry) (900/850-900/850)] + [Outgoing External Inter-Cell Handover Commands (Directed Retry) (1800/1900-1800/1900)] + [Outgoing External Inter-Cell Handover Commands (Directed Retry) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Commands (Directed Retry) (1800/1900-900/850)]
Failed Outgoing External Inter-Cell Handovers = [Failed Outgoing External Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (900/850-900/850)] + [Failed Outgoing External Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Failed Outgoing External Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)] + [Failed Outgoing External Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)] + [Failed Outgoing External Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (900/850-900/850)] + [Failed Outgoing External Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (1800/1900-1800/1900)] + [Failed Outgoing External Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (900/850-1800/1900)] + [Failed Outgoing External Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (1800/1900-900/850)] + [Failed Outgoing External Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (900/850-900/850)] + [Failed Outgoing External Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (1800/1900-1800/1900)] +
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[Failed Outgoing External Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (900/850-1800/1900)] + [Failed Outgoing External Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (1800/1900-900/850)] + [Failed Outgoing External Inter-Cell Handovers (Directed Retry) (900/850-900/850)] + [Failed Outgoing External Inter-Cell Handovers (Directed Retry) (1800/1900-1800/1900)] + [Failed Outgoing External Inter-Cell Handovers (Directed Retry) (900/850-1800/1900)] + [Failed Outgoing External Inter-Cell Handovers (Directed Retry) (1800/1900-900/850)]
Success Rate of Outgoing External Inter-Cell Handover = [Successful Outgoing External Inter-Cell Handovers] *{100}/[Outgoing External Inter-Cell Handover Requests]
Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) = [Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (OM Intervention)] + [Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Equipment Failure)] + [Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (No Radio Resource Available)] + [Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Requested Terrestrial Resource Unavailable)] + [Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (BSS not Equipped)] + [Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Invalid Cell)] + [Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Requested Transcoding/Rate Adaption Unavailable)] + [Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Circuit Pool Mismatch)] + [Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Requested Speech Version Unavailable)] + [Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Ciphering Algorithm not Supported)] + [Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Terrestrial circuit already allocated)] + [Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Invalid Message)] + [Failed Outgoing External Inter-Cell Handovers (Handover Request Rejected) (Protocol Error between BSS and MSC)] +
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Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) = [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Unspecified)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Channel Unacceptable)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Timer Expired)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, No Activity on the Radio Path)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Preemptive Release)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Handover Failed, Timing Advance out of Range)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Channel Mode Unavailable)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Frequency Unavailable)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Call Already Cleared)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Semantically Incorrect Message)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Invalid Mandatory Information)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Message Type Non-existent or Not Implemented)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Message Type Not Compatible with Protocol State)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Conditional IE Error)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (No Cell Allocation Available)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Protocol Error Unspecified)] + [Failed Outgoing External Inter-Cell Handovers (Reconnection to Old Channels) (Other Causes)]
Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) = [Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Radio Interface Message Failure)] +
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[Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Radio Interface Failure)] + [Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (OM Intervention)] + [Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Equipment Failure)] + [Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Preemption)] + [Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Invalid Message)] + [Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Protocol Error between BSS and MSC)] + [Failed Outgoing External Inter-Cell Handovers (Clear Commands Sent by MSC) (Other Causes)]
Failed Outgoing External Inter-Cell Handovers (T7 Expired) = [Failed Outgoing External Inter-Cell Handovers (T7 Expired) (SDCCH) (Excluding Directed Retry)] + [Failed Outgoing External Inter-Cell Handovers (T7 Expired) (TCHF) (Signaling Channel)] + [Failed Outgoing External Inter-Cell Handovers (T7 Expired) (TCHH) (Signaling Channel)] + [Failed Outgoing External Inter-Cell Handovers (T7 Expired) (TCHF) (Traffic Channel)] + [Failed Outgoing External Inter-Cell Handovers (T7 Expired) (TCHH) (Traffic Channel)] + [Failed Outgoing External Inter-Cell Handovers (T7 Expired) (Directed Retry)]
Failed Outgoing External Inter-Cell Handovers (T8 Expired) = [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (SDCCH) (Excluding Directed Retry)] + [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (TCHF) (Signaling Channel)] + [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (TCHH) (Signaling Channel)] + [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (TCHF) (Traffic Channel)] + [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (TCHH) (Traffic Channel)] + [Failed Outgoing External Inter-Cell Handovers (T8 Expired) (Directed Retry)]
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11.15 Incoming Inter-RAT Inter-Cell Handover Measurement per Cell 11.15.1 Overview The conventions used in this section are as follows: z
The MSC of the local system is referred to as MSC 1, and that of another system is referred to as MSC 2.
z
The BSC of the local system is referred to as BSC 1.
z
The BTS of the local system is referred to as BTS 1.
The procedure for incoming inter-RAT inter-cell handover is as follows: MSC 2 sends a PERFORM HO message to MSC 1. Based on the information of the target cell in this message and the mapping between cells and BSCs in the MSC 1 data configuration, MSC 1 finds out the corresponding BSC, that is, BSC 1, and sends an HO ERQ message to BSC 1. Based on the information of the target cell, BSC 1 requests channel resources from the target cell. After the request succeeds, BSC 1 sends a CHAN ACTIV message to the target cell. BTS 1 sends a CHAN ACTIV ACK message from the target cell to BSC 1. BSC 1 requests the resources for voice service. After the request succeeds, BSC 1 sends an HO REQ ACK message to MSC 1. After receiving an HO CMD message from another system, the MS sends an HO ACC message to BTS 1, attempting to access the new system from the target cell. BTS 1 reports an HO DETECT message to MSC 1 through BSC 1. At the same time, BTS 1 sends a PHY INFO message to the MS. The MS sends a FIRST SABM message to access the network. BTS 1 sends an EST IND message to BSC 1. At the same time, BTS 1 responds the MS with a UA message. After accessing the network, the MS sends an HO CMP message to MSC 1 through the target cell. Here, the incoming inter-RAT inter-cell handover is complete.
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Figure 11-24 Incoming inter-RAT inter-cell handover procedure MSC2
MSC1
BSC1
BTS1
MS
PERFORM HO HO REQ A CHAN ACTIV CHAN ACTIV ACK HO REQ ACK RADIO CHAN ACK B
IAM ACM
HO ACC HO DETECT HO DETECT
PHY INFO FIRST SABM EST IND UA HO CMP
HO CMP SEND END SIG
A: Request for incoming inter-RAT inter-cell handover B: Respond to the request for incoming inter-RAT inter-cell handover
Table 11-66 lists the counter types of Incoming Inter-RAT Inter-Cell Handover Measurement per Cell. Table 11-66 Counter types of Incoming Inter-RAT Inter-Cell Handover Measurement per Cell Counter Type
Section
Incoming Inter-RAT Inter-Cell Handover Requests per Cell
11.15.2
Incoming Inter-RAT Inter-Cell Handover Responses per Cell
11.15.3
Failed Incoming Inter-RAT Inter-Cell Handovers per Cell
11.15.4
Incoming Inter-RAT Inter-Cell Handover Analyzed Measurement per Cell
11.15.5
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11.15.2 Incoming Inter-RAT Inter-Cell Handover Requests per Cell Counter Table 11-67 lists the counters of Incoming Inter-RAT Inter-Cell Handover Requests per Cell. Table 11-67 Counters of Incoming Inter-RAT Inter-Cell Handover Requests per Cell Number
Counter
1
H3600: Incoming Inter-RAT Inter-Cell Handover Requests (SDCCH)
2
H3609: Incoming Inter-RAT Inter-Cell Handover Requests (TCH)
Meaning When receiving an HO ERQ message from MSC 1, BSC 1 performs the measurement based on the channel type if deciding to perform an inter-RAT handover. Along with Incoming Inter-RAT Inter-Cell Handover Responses per Cell and Failed Incoming Inter-RAT Inter-Cell Handovers per Cell, this type of counters can help you to better understand the situation of incoming inter-RAT inter-cell handover. Along with Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell, this type of counters can help you to better understand the performance of incoming inter-RAT inter-cell handover. The channel type may be SDCCH or TCH.
Trigger Point The measurement is triggered at point A as shown in Figure 11-24, that is, when BSC 1 receives an HO REQ message from MSC 1. For an inter-RAT handover, the measurement is based on the channel type.
Formula None.
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11.15.3 Incoming Inter-RAT Inter-Cell Handover Responses per Cell Counter Table 11-68 list the counters of Incoming Inter-RAT Inter-Cell Handover Responses per Cell. Table 11-68 Counters of Incoming Inter-RAT Inter-Cell Handover Responses per Cell Number
Counter
1
H3610: Incoming Inter-RAT Inter-Cell Handover Responses (SDCCH)
2
H3617: Incoming Inter-RAT Inter-Cell Handover Responses (TCHF)
3
H3618: Incoming Inter-RAT Inter-Cell Handover Responses (TCHH)
Meaning When responding MSC 1 with an HO REQ ACK message, BSC 1 performs the measurement based on the channel type. Along with Incoming Inter-RAT Inter-Cell Handover Responses per Cell and Failed Incoming Inter-RAT Inter-Cell Handovers per Cell, this type of counters can help you to better understand the situation of incoming inter-RAT inter-cell handovers. Along with Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell, this type of counters can help you to better understand the performance of incoming inter-RAT inter-cell handovers. The channel type may be SDCCH, TCHH, or TCHF.
Trigger Point The measurement is triggered at point B as shown in Figure 11-24, that is, when BSC 1 responds MSC 1 with an HO REQ ACK message. The measurement is based on the channel type.
Formula None.
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11.15.4 Failed Incoming Inter-RAT Inter-Cell Handovers per Cell Counter Table 11-69 list the counters of Failed Incoming Inter-RAT Inter-Cell Handovers per Cell. Table 11-69 Counters of Failed Incoming Inter-RAT Inter-Cell Handovers per Cell Number
Counter
1
H3620: Failed Incoming Inter-RAT Inter-Cell Handovers (SDCCH)
2
H3627: Failed Incoming Inter-RAT Inter-Cell Handovers (TCHF)
3
H3628: Failed Incoming Inter-RAT Inter-Cell Handovers (TCHH)
4
H362J: Failed Incoming Inter-RAT Inter-Cell Handovers (Invalid Message)
5
H3620A: Failed Incoming Inter-RAT Inter-Cell Handovers (Channel Unavailable) (SDCCH)
6
H3629A: Failed Incoming Inter-RAT Inter-Cell Handovers (Channel Unavailable) (TCH)
7
H362E: Failed Incoming Inter-RAT Inter-Cell Handovers (CIC Unavailable)
8
H362F: Failed Incoming Inter-RAT Inter-Cell Handovers (CIC Allocated)
9
H362B: Failed Incoming Inter-RAT Inter-Cell Handovers (Terrestrial Resource Request Failed)
10
H362H: Failed Incoming Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC)
11
H3620C: Failed Incoming Inter-RAT Inter-Cell Handovers (Timer Expired) (SDCCH)
12
H3629Cb: Failed Incoming Inter-RAT Inter-Cell Handovers (Timer Expired) (TCH) (Signaling Channel)
13
H3629Ca: Failed Incoming Inter-RAT Inter-Cell Handovers (Timer Expired) (TCH) (Traffic Channel)
Meaning When an incoming inter-RAT inter-cell handover fails, BSC 1 performs the measurement based on the channel type, triggering condition, and failure cause. Along with Incoming Inter-RAT Inter-Cell Handover Requests per Cell and Incoming InterRAT Inter-Cell Handover Responses per Cell, this type of counters can help you to better understand the situation of incoming inter-RAT inter-cell handovers. Along with Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell, this type of counters can help you to better understand the performance of incoming inter-RAT inter-cell handovers.
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The channel type may be SDCCH, TCHF, or TCHH. The triggering condition of a failure in incoming inter-RAT inter-cell handover may be Invalid Message, Channel Unavailable, CIC abnormal, Terrestrial Resource Request Failed, Clear Commands Sent by MSC, or Timer Expired. The failure cause may be CIC Unavailable or CICI Allocated.
Trigger Point The measurement is triggered at any of points A to G as shown in Figure 11-25. Figure 11-25 Incoming inter-RAT inter-cell handover procedure MSC2
MSC1
BSC1
MS
BTS1
PERFORM HO HO REQ B C CHAN ACTIV CHAN ACTIV ACK D E RADIO CHAN ACK IAM
A
HO REQ ACK F HO ACC HO DETECT
ACM
PHY INFO
HO DETECT
FIRST SABM EST IND Handover timer timeout
UA
G HO CMP HO CMP SEND END SIG
A: Failed Incoming Inter-RAT Inter-Cell Handovers B: Failed Incoming Inter-RAT Inter-Cell Handovers (Invalid Message) C: Failed Incoming Inter-RAT Inter-Cell Handover Requests (Channel Unavailable) D: Failed Incoming Inter-RAT Inter-Cell Handovers (CIC abnormal) E: Failed Incoming Inter-RAT Inter-Cell Handovers (Terrestrial Resource Request Failed) F: Failed Incoming Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) G: Failed Incoming Inter-RAT Inter-Cell Handovers (Timer Expired)
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Failed Incoming Inter-RAT Inter-Cell Handovers When an incoming inter-RAT inter-cell handover fails, BSC 1 performs the measurement based on the channel type. The channel type may be SDCCH, TCHF, or TCHH.
z
Failed Incoming Inter-RAT Inter-Cell Handovers (Invalid Message) When receiving an HO REQ message from MSC 1, BSC 1 decodes the message. When finding out that the message is not compliant with the protocol requirements during the decoding, BSC 1 performs the measurement.
z
Failed Incoming Inter-RAT Inter-Cell Handovers (Channel Unavailable) When the target cell responds BSC 1 that the request for channel resources fails because of channel unavailable, BSC 1 performs the measurement based on the channel type. The channel type may be SDCCH or TCH.
z
Failed Incoming Inter-RAT Inter-Cell Handovers (CIC Unavailable) When failing to request terrestrial resources because of CIC abnormal, BSC 1 performs the measurement based on the failure cause. Where, the CIC is carried in the HO REQ message. The failure cause may be CIC Unavailable or CIC Allocated.
z
Failed Incoming Inter-RAT Inter-Cell Handovers (Terrestrial Resource Request Failed) When failing to request terrestrial resources not because of CIC abnormal, BSC 1 performs the measurement. Where, the CIC is carried in the HO REQ message.
z
Failed Incoming Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) When receiving a CLR CMD message from MSC 1, BSC 1 performs the measurement.
z
Failed Incoming Inter-RAT Inter-Cell Handovers (Timer Expired) When failing to receive an HO CMP message from the MS through the target cell before the timer is expired, BSC 1 performs the measurement based on the channel type. The channel type may be SDCCH or TCH. Here, the TCH may be a traffic channel or a signaling channel.
Formula None.
11.15.5 Incoming Inter-RAT Inter-Cell Handover Analyzed Measurement per Cell Counter Table 11-70 lists the counters of Incoming Inter-RAT Inter-Cell Handover Analyzed Measurement per Cell. Table 11-70 Counters of Incoming Inter-RAT Inter-Cell Handover Analyzed Measurement per Cell
11-176
Number
Counter
1
CH360: Incoming Inter-RAT Inter-Cell Handover Requests
2
CH363: Successful Incoming Inter-RAT Inter-Cell Handovers
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Number
Counter
3
TH363: Success Rate of Incoming Inter-RAT Inter-Cell Handover
4
CH361: Incoming Inter-RAT Inter-Cell Handover Responses
5
H362: Failed Incoming Inter-RAT Inter-Cell Handovers
6
H362C: Failed Incoming Inter-RAT Inter-Cell Handovers (Timer Expired)
Meaning None.
Trigger Point None.
Formula Incoming Inter-RAT Inter-Cell Handover Requests = [Incoming Inter-RAT Inter-Cell Handover Requests (SDCCH)] + [Incoming Inter-RAT Inter-Cell Handover Requests (TCH)]
Successful Incoming Inter-RAT Inter-Cell Handovers = [Incoming Inter-RAT Inter-Cell Handover Requests (SDCCH)] + [Incoming Inter-RAT Inter-Cell Handover Requests (TCH)][Failed Incoming Inter-RAT Inter-Cell Handovers (SDCCH)][Failed Incoming Inter-RAT Inter-Cell Handovers (TCHF)][Failed Incoming Inter-RAT Inter-Cell Handovers (TCHH)]
Success Rate of Incoming Inter-RAT Inter-Cell Handover = [Successful Incoming Inter-RAT Inter-Cell Handovers]*{100}/[Incoming Inter-RAT InterCell Handover Requests]
Incoming Inter-RAT Inter-Cell Handover Responses = [Incoming Inter-RAT Inter-Cell Handover Responses (SDCCH)] + [Incoming Inter-RAT Inter-Cell Handover Responses (TCHF)] + [Incoming Inter-RAT Inter-Cell Handover Responses (TCHH)]
Failed Incoming Inter-RAT Inter-Cell Handovers =
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[Failed Incoming Inter-RAT Inter-Cell Handovers (SDCCH)] + [Failed Incoming Inter-RAT Inter-Cell Handovers (TCHF)] + [Failed Incoming Inter-RAT Inter-Cell Handovers (TCHH)]
Failed Incoming Inter-RAT Inter-Cell Handovers (Timer Expired)= [Failed Incoming Inter-RAT Inter-Cell Handovers (Timer Expired) (SDCCH)] + [Failed Incoming Inter-RAT Inter-Cell Handovers (Timer Expired) (TCH) (Signaling Channel)] + [Failed Incoming Inter-RAT Inter-Cell Handovers (Timer Expired) (TCH) (Traffic Channel)]
11.16 Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell 11.16.1 Overview The conventions used in this section are as follows: z
The BSC of the source cell is referred to as BSC 2. The BSC of the target cell is referred to as BSC 1.
z
The BTS corresponds to BSC 2 is referred to as BTS 2.
z
The MSC corresponds to BSC 2 is referred to as MSC 2.
Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell has the following two types: z
Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell (Excluding Directed Retry) The MS sends a measurement report to BSC 2. Based on the current load and signal interference of the cell as well as the signal quality and RX/TX level in the measurement report, BSC 2 decides whether to perform a handover. If deciding to perform a handover, BSC 2 sends a handover triggering indication to the corresponding processing module. If the target cell is in another system, BSC 2 initiates an inter-RAT handover outgoing from the source cell. BSC 2 sends an HO RQD message to MSC 2, requesting MSC 2 to notify the other system. Based on its data configuration, MSC 2 finds out the corresponding MSC, that is, MSC 1, and a handover request to MSC 1. After preparing for the handover, the other system notifies MSC 2. MSC 2 sends an HO CMD message to BSC 2, requesting BSC 2 to notify the MS. BSC 2 sends an HO CMD message to the MS through the source cell, requesting the MS to access the network in the target cell. After the access succeeds, MSC 1 notifies MSC 2 that the incoming inter-RAT inter-cell handover is complete. MSC 2 sends a CLR CMD message to BSC 2. After instructing the source cell to release related resources, BSC 2 responds MSC 2 with a CLR CMP message. Here, the outgoing inter-RAT inter-cell handover is complete.
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Figure 11-26 Outgoing inter-RAT inter-cell handover procedure (excluding directed retry) MSC1
BSC2
MSC2
BTS2
MS
MR FROM MS
A HO RQD PERFORM HO RADIO CHAN ACK IAM ACM HO CMD HO CMD
B SEND END SIG CLR CMD CLR CMP
A: Request for an outgoing inter-RAT inter-cell handover B: Command for an incoming inter-RAT inter-cell handover
z
Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell (Directed Retry) After receiving an ASSIGN REQ message from MSC 2, BSC 2 decides the assignment mode based on the load of the cell. There are three assignment procedures: normal assignment procedure, directed retry procedure, and assignment modification procedure. If the load of the cell is so high that the cell cannot admit a new service or that a new service will affect current services, BSC 2 decides to perform a directed retry. If the target cell selected during the directed retry belongs to another system, BSC 2 initiates an inter-RAT inter-cell handover procedure outgoing from the source cell. BSC 2 sends an HO RQD message to MSC 2, requesting MSC 2 to notify the other system. Based on its data configuration, MSC 2 finds out the corresponding MSC, that is, MSC 1, and a handover request to MSC 1. After preparing for the handover, the other system notifies MSC 2. MSC 2 sends an HO CMD message to BSC 2, requesting BSC 2 to notify the MS. BSC 2 sends an HO CMD message to the MS through the source cell, requesting the MS to access the network in the target cell. After the access succeeds, MSC 1 notifies MSC 2 that the incoming inter-RAT inter-cell handover is complete. MSC 2 sends a CLR CMD message to BSC 2. After instructing the source cell to release related resources, BSC 2 responds MSC 2 with a CLR CMP message. Here, the outgoing inter-RAT inter-cell handover during directed retry is complete.
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Figure 11-27 Outgoing inter-RAT inter-cell handover procedure (including directed retry) MSC1
BSC2
MSC2
MS
BTS2
ASSIGN REQ
A HO RQD PERFORM HO RADIO CHAN ACK IAM ACM HO CMD HO CMD
B SEND END SIG CLR CMD CLR CMP
A: Request for an outgoing inter-RAT inter-cell handover B: Command for an incoming inter-RAT inter-cell handover
Table 11-71 lists the counter types of Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell. Table 11-71 Counter types of Outgoing Inter-RAT Inter-Cell Handover Measurement per Cell
11-180
Counter Type
Section
Outgoing Inter-RAT Inter-Cell Handover Requests per Cell
11.16.2
Outgoing Inter-RAT Inter-Cell Handover Commands per Cell
11.16.3
Failed Outgoing Inter-RAT Inter-Cell Handovers per Cell
11.16.4
Outgoing Inter-RAT Inter-Cell Handover Analyzed Measurement per Cell
11.16.5
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11.16.2 Outgoing Inter-RAT Inter-Cell Handover Requests per Cell Counter Table 11-72 lists the counters of Outgoing Inter-RAT Inter-Cell Handover Requests per Cell. Table 11-72 Counters of Outgoing Inter-RAT Inter-Cell Handover Requests per Cell Number
Counter
1
H3500: Outgoing Inter-RAT Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry)
2
H3507: Outgoing Inter-RAT Inter-Cell Handover Requests (TCHF)
3
H3508: Outgoing Inter-RAT Inter-Cell Handover Requests (TCHH)
Meaning z
Outgoing Inter-RAT Inter-Cell Handover Requests (Excluding Directed Retry) This type of counters measures the number of outgoing inter-RAT inter-cell handover requests that are initiated according to handover decision. Along with Outgoing Inter-RAT Inter-Cell Handover Commands per Cell and Failed Outgoing External Inter-Cell Handovers per Cell, this type of counters can help you to better understand the situation of outgoing inter-RAT inter-cell handovers. Along with Incoming Inter-RAT Inter-Cell Handover Measurement per Cell, this type of counters can help you to better understand the situation of all outgoing inter-RAT intercell handovers. The channel type may be SDCCH.
z
Outgoing Inter-RAT Inter-Cell Handover Requests (Directed Retry) This type of counters measures the number of outgoing inter-RAT inter-cell handover requests that are initiated by the BSC during directed retry in an assignment procedure. Along with Outgoing Inter-RAT Inter-Cell Handover Commands per Cell and Failed Outgoing External Inter-Cell Handovers per Cell, this type of counters can help you to better understand the situation of outgoing inter-RAT inter-cell handovers. Along with Incoming Inter-RAT Inter-Cell Handover Measurement per Cell, this type of counters can help you to better understand the situation of all outgoing inter-RAT intercell handovers. The channel type may be TCHH or TCHF.
Trigger Point z
Outgoing Inter-RAT Inter-Cell Handover Requests (Excluding Directed Retry) The measurement is triggered at point A as shown in Figure 11-27, that is, when BSC 2 decides to perform an outgoing inter-RAT inter-cell handover according to measurement reports. The measurement is based on the channel type.
z
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The measurement is triggered at point A as shown in Figure 11-27, that is, when BSC 2 decides to perform an inter-RAT directed retry. The measurement is based on the channel type.
Formula None.
11.16.3 Outgoing Inter-RAT Inter-Cell Handover Commands per Cell Counter Table 11-73 lists the counters of Outgoing Inter-RAT Inter-Cell Handover Commands per Cell. Table 11-73 Counters of Outgoing Inter-RAT Inter-Cell Handover Commands per Cell Number
Counter
1
H3510: Outgoing Inter-RAT Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry)
2
H3517: Outgoing Inter-RAT Inter-Cell Handover Commands (TCHF)
3
H3518: Outgoing Inter-RAT Inter-Cell Handover Commands (TCHH)
Meaning This type of counters measures the number of outgoing inter-RAT inter-cell handover commands that are sent by BSC 2 to the MS through the source cell. Along with Outgoing Inter-RAT Inter-Cell Handover Requests per Cell and Failed Outgoing External Inter-Cell Handovers per Cell, this type of counters can help you to better understand the situation of outgoing inter-RAT inter-cell handovers. Along with Incoming Inter-RAT Inter-Cell Handover Measurement per Cell, this type of counters can help you to better understand the situation of all outgoing inter-RAT inter-cell handovers. The channel type may be SDCCH, TCHH, or TCHF. The directed retry procedure applies to only traffic channels.
Trigger Point The measurement is triggered at point B as shown in Figure 11-26 and Figure 11-27, that is, when BSC 2 sends an HO CMD message to the MS through the source cell. Here, the handover includes directed retry. The measurement is based on the channel type.
Formula None.
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11.16.4 Failed Outgoing Inter-RAT Inter-Cell Handovers per Cell Counter Table 11-74 lists the counters of Failed Outgoing Inter-RAT Inter-Cell Handovers per Cell. Table 11-74 Counters of Failed Outgoing Inter-RAT Inter-Cell Handovers per Cell Number
Counter
1
H3520: Failed Outgoing Inter-RAT Inter-Cell Handovers (SDCCH) (Excluding Directed Retry)
2
H3527: Failed Outgoing Inter-RAT Inter-Cell Handovers (TCHF)
3
H3528: Failed Outgoing Inter-RAT Inter-Cell Handovers (TCHH)
4
H352Da: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Unspecified)
5
H352Db: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Channel Unacceptable)
6
H352Dc: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Timer Expired)
7
H352Dd: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, No Activity on the Radio Path)
8
H352De: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Preemptive Release)
9
H352Df: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Handover Failed, Timing Advance out of Range)
10
H352Dg: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Channel Mode Unavailable)
11
H352Dh: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Frequency Unavailable)
12
H352Di: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Call Already Cleared)
13
H352Dj: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Semantically Incorrect Message)
14
H352Dk: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Invalid Mandatory Information)
15
H352Dl: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Message Type Non-existent or Not Implemented)
16
H352Dm: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Message Type Not Compatible with Protocol State)
17
H352Dn: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Conditional IE Error)
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Number
Counter
18
H352Do: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (No Cell Allocation Available)
19
H352Dp: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Protocol Error Unspecified)
20
H352Dq: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Other Causes)
21
H352Ka: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (OM Intervention)
22
H352Kb: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Equipment Failure)
23
H352Kc: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (No Radio Resource Available)
24
H352Kd: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Requested Terrestrial Resource Unavailable)
25
H352Ke: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (BSS not Equipped)
26
H352Kf: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Invalid Cell)
27
H352Kg: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Requested Transcoding/Rate Adaption Unavailable)
28
H352Kh: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Circuit Pool Mismatch)
29
H352Ki: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Requested Speech Version Unavailable)
30
H352Kj: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Ciphering Algorithm not Supported)
31
H352Kk: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Terrestrial circuit already allocated)
32
H352Kl: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Invalid Message)
33
H352Km: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Protocol Error between BSS and MSC)
34
H352Kn: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Other Causes)
35
H352Ha: Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Radio Interface Message Failure)
36
H352Hb: Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Radio Interface Failure)
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Number
Counter
37
H352Hc: Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (OM Intervention)
38
H352Hd: Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Equipment Failure)
39
H352He: Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Preemption)
40
H352Hf: Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Invalid Message)
41
H352Hg: Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Protocol Error between BSS and MSC)
42
H352Hh: Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Other Causes)
43
H352G: Failed Outgoing Inter-RAT Inter-Cell Handovers (A-Interface Failure)
44
H352L: Failed Outgoing Inter-RAT Inter-Cell Handovers (T7 Expired)
45
H352C: Failed Outgoing Inter-RAT Inter-Cell Handovers (T8 Expired)
Meaning This type of counters measures the number of failed outgoing inter-RAT inter-cell handovers based on the channel type and failure cause. Here, the handover excludes directed retry. Along with Outgoing Inter-RAT Inter-Cell Handover Requests per Cell and Outgoing InterRAT Inter-Cell Handover Commands per Cell, this type of counters can help you to better understand the situation of outgoing inter-RAT inter-cell handovers. Along with Incoming Inter-RAT Inter-Cell Handover Measurement per Cell, this type of counters can help you to better understand the situation of all outgoing inter-RAT inter-cell handovers. The channel type may be SDCCH, TCHH, or TCHF. The directed retry procedure applies to only traffic channels. The failure cause may be one of the following: z
Handover request rejected
z
Reconnected to the old channel, excluding directed retry
z
Command from the MSC cleared
z
The A interface failed
z
T7 or T8 timer expired
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Trigger Point The measurement is triggered at any of points A to H as shown in Figure 11-28 and Figure 1129. Figure 11-28 Outgoing inter-RAT inter-cell handover procedure (excluding directed retry) MSC1
MSC2
BSC2
BTS2
MS
MR FROM MS HO RQD PERFORM HO Handover failed HO RQD REJ
C T7 expired
G
In the outgoing inter-RAT inter-cell handover procedure
HO CMD HO CMD HO FAIL
D
A E
T8 expired
F SEND END SIG
H CLR CMD CLR CMP
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Figure 11-29 Outgoing inter-RAT inter-cell handover procedure (including directed retry) MSC1
MSC2
BSC2
BTS2
MS
ASSIGN REQ HO RQD PERFORM HO Handover failed HO RQD REJ
C T7 expired
In the outgoing inter-RAT inter-cell handover procedure
B
G HO CMD HO CMD T8 expired SEND END SIG
E F
H CLR CMD CLR CMP
A: Failed Outgoing Inter-RAT Inter-Cell Handovers (Excluding Directed Retry) B: Failed Outgoing Inter-RAT Inter-Cell Handovers (Directed Retry) C: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) E: Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) F: Failed Outgoing Inter-RAT Inter-Cell Handovers (A-Interface Failure) G: Failed Outgoing Inter-RAT Inter-Cell Handovers (T7 Expired) H: Failed Outgoing Inter-RAT Inter-Cell Handovers (T8 Expired)
z
Failed Outgoing Inter-RAT Inter-Cell Handovers (Excluding Directed Retry) As shown in Figure 11-28, the measurement is triggered when an outgoing inter-RAT inter-cell handover (excluding directed retry) fails. The measurement is based on the channel type. The channel type may be SDCCH, TCHH, or TCHF.
z
Failed Outgoing Inter-RAT Inter-Cell Handovers (Directed Retry) As shown in Figure 11-29, the measurement is triggered when an outgoing inter-RAT inter-cell handover (including directed retry) fails. The measurement is based on the channel type. The channel type may be TCHH or TCHF.
z
Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) As shown in Figure 11-28 and Figure 11-29, the measurement is triggered when MSC 2 sends an HO RQD REJ message to BSC 2 during an outgoing inter-RAT inter-cell handover (including directed retry). The measurement is based on the rejection cause. The rejection causes are as follows:
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−
OM intervention
−
Equipment failure
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z
−
No radio resource available
−
Requested terrestrial resource unavailable
−
BSS not equipped
−
Invalid Cell
−
Requested transcoding/rate adaption unavailable
−
Circuit pool mismatch
−
Requested Speech version unavailable
−
Ciphering algorithm not supported
−
Terrestrial circuit already allocated
−
Invalid message
−
Protocol Error between BSS and MSC
−
Other causes
Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) As shown in Figure 11-28, the measurement is triggered when the MS sends an HO FAIL message to BSC 2 through the source cell after failing to access the new system in the target cell and returning to the old channel during an outgoing inter-RAT inter-cell handover (excluding directed retry). The measurement is based on the RR cause. The RR causes for handover failure are as follows:
z
−
Abnormal release, unspecified
−
Abnormal release, channel unacceptable
−
Abnormal release, timer expired
−
Abnormal release, no activity on the radio path
−
Preemptive release
−
Handover failed, timing advance out of range
−
Channel mode unavailable
−
Frequency unavailable
−
Call already cleared
−
Semantically incorrect message
−
Invalid mandatory information
−
Message type non-existent or not implemented
−
Message type not compatible with protocol state
−
Conditional IE error
−
No cell allocation available
−
Protocol error unspecified
−
Other causes
Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) As shown in Figure 11-28 and Figure 11-29, the measurement is triggered when BSC 2 receives a CLR CMD message from MSC 2 during an outgoing inter-RAT inter-cell handover (including directed retry). The measurement is based on the clearance cause. The clearance causes are as follows:
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−
Radio interface message failure
−
Radio interface failure
−
OM intervention
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z
−
Equipment failure
−
Preemption
−
Invalid message
−
Protocol Error between BSS and MSC
−
Other causes
11 Call Measurement
Failed Outgoing Inter-RAT Inter-Cell Handovers (A-Interface Failure) As shown in Figure 11-28 and Figure 11-29, the measurement is triggered when BSC 2 receives a message indicating that the A interface fails during an outgoing inter-RAT inter-cell handover (including directed retry).
z
Failed Outgoing Inter-RAT Inter-Cell Handovers (T7 Expired) As shown in Figure 11-28 and Figure 11-29, the measurement is triggered when BSC 2 does not receive an HO CMD message from MSC 2 before T7 expires during an outgoing inter-RAT inter-cell handover (including directed retry).
z
Failed Outgoing Inter-RAT Inter-Cell Handovers (T8 Expired) As shown in Figure 11-28 and Figure 11-29, the measurement is triggered when BSC 2 does not receive a CLR CMD message from MSC 2 before T8 expires during an outgoing inter-RAT inter-cell handover (including directed retry).
Formula None.
11.16.5 Outgoing Inter-RAT Inter-Cell Handover Analyzed Measurement per Cell Counter Table 11-75 lists the counters of Outgoing Inter-RAT Inter-Cell Handover Analyzed Measurement per Cell. Table 11-75 Counters of Outgoing Inter-RAT Inter-Cell Handover Analyzed Measurement per Cell Number
Counter
1
CH350: Outgoing Inter-RAT Inter-Cell Handover Requests
2
CH353: Successful Outgoing Inter-RAT Inter-Cell Handovers
3
TH353: Success Rate of Outgoing Inter-RAT Inter-Cell Handover
4
CH351: Outgoing Inter-RAT Inter-Cell Handover Commands
5
CH352: Failed Outgoing Inter-RAT Inter-Cell Handovers
6
CH352D: Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels)
7
CH352K: Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected)
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Number
Counter
8
CH352H: Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC)
Meaning None.
Trigger Point None.
Formula Outgoing Inter-RAT Inter-Cell Handover Requests = [Outgoing Inter-RAT Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry)] + [Outgoing Inter-RAT Inter-Cell Handover Requests (TCHF)] + [Outgoing Inter-RAT Inter-Cell Handover Requests (TCHH)]
Successful Outgoing Inter-RAT Inter-Cell Handovers = [Outgoing Inter-RAT Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry)] + [Outgoing Inter-RAT Inter-Cell Handover Requests (TCHF)] + [Outgoing Inter-RAT Inter-Cell Handover Requests (TCHH)][Failed Outgoing Inter-RAT Inter-Cell Handovers (SDCCH) (Excluding Directed Retry)][Failed Outgoing Inter-RAT Inter-Cell Handovers (TCHF)][Failed Outgoing Inter-RAT Inter-Cell Handovers (TCHH)]
Success Rate of Outgoing Inter-RAT Inter-Cell Handover = [Successful Outgoing Inter-RAT Inter-Cell Handovers]*{100}/[Outgoing Inter-RAT Inter-Cell Handover Requests]
Outgoing Inter-RAT Inter-Cell Handover Commands = [Outgoing Inter-RAT Inter-Cell Handover Commands (SDCCH) (Excluding Directed Retry)] + [Outgoing Inter-RAT Inter-Cell Handover Commands (TCHF)] + [Outgoing Inter-RAT Inter-Cell Handover Commands (TCHH)]
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Failed Outgoing Inter-RAT Inter-Cell Handovers = [Failed Outgoing Inter-RAT Inter-Cell Handovers (SDCCH) (Excluding Directed Retry)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (TCHF)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (TCHH)]
Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels)= [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Unspecified)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Channel Unacceptable)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, Timer Expired)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Abnormal Release, No Activity on the Radio Path)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Preemptive Release)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Handover Failed, Timing Advance out of Range)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Channel Mode Unavailable)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Frequency Unavailable)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Call Already Cleared)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Semantically Incorrect Message)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Invalid Mandatory Information)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Message Type Non-existent or Not Implemented)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Message Type Not Compatible with Protocol State)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Conditional IE Error)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (No Cell Allocation Available)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Protocol Error Unspecified)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Reconnection to Old Channels) (Other Causes)]
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Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected)= [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (OM Intervention)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Equipment Failure)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (No Radio Resource Available)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Requested Terrestrial Resource Unavailable)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (BSS not Equipped)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Invalid Cell)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Requested Transcoding/Rate Adaption Unavailable)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Circuit Pool Mismatch)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Requested Speech Version Unavailable)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Ciphering Algorithm not Supported)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Terrestrial circuit already allocated)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Invalid Message)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Protocol Error between BSS and MSC)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Handover Request Rejected) (Other Causes)]
Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC)= [Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Radio Interface Message Failure)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Radio Interface Failure)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (OM Intervention)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Equipment Failure)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Preemption)] +
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[Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Invalid Message)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Protocol Error between BSS and MSC)] + [Failed Outgoing Inter-RAT Inter-Cell Handovers (Clear Commands Sent by MSC) (Other Causes)]
11.17 GSM Cell to GSM Cell Incoming Handover Measurement 11.17.1 Overview GSM Cell to GSM Cell Incoming Handover refers to a handover in which the MS is handed over to the target cell from the source cell. GSM Cell to GSM Cell Incoming Handover Measurement aims to measure the following two types of handover: z
After receiving a measurement report from the MS, the BSC decides to perform a handover based on the interference of the current channel, the load of the cell, and the measurement report, which indicates the signal quality, strength, and TX/RX level.
z
After receiving an ASSIGN REQ message from the MSC, the BSC decides the assignment mode based on the load of the cell. There are three assignment procedures: normal assignment procedure, directed retry procedure, and assignment modification procedure. If the load of the cell is so high that the cell cannot admit a new service or that a new service will affect current services, the BSC decides to perform a handover through directed retry.
The incoming handover procedure is as follows: Step 1 The main processing module of the BSC receives an intra-BSC handover triggering indication from the handover algorithm, an inter-BSC HO REQ message from the MSC, or a request for handover during directed retry. Step 2 The BSC sends an inter-BSC HO REQ message to the target cell through the MSC or directly requests channel resources from the target cell controlled by the same BSC for channel resources. Step 3 The BSC sends an HO CMD message to the MS through the source cell after the request succeeds. Step 4 The MS accesses the network through the target cell by receiving/sending messages such as HO ACC, PHY INFO, FIRST SABM, and UA. Step 5 The MS sends an HO CMP message to the BSC through the target cell and releases the resources of the source cell. ----End
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Table 11-76 lists the counter types of GSM Cell to GSM Cell Incoming Handover Measurement. Table 11-76 Counter types of CGSM Cell to GSM Cell Incoming Handover Measurement Counter Type
Section
Cell Incoming Handover Requests (Cell to Cell)
11.17.2
Failed Cell Incoming Handovers (Cell to Cell)
11.17.3
Cell Incoming Handover Analyzed Measurement (Cell to Cell)
11.17.4
11.17.2 Cell Incoming Handover Requests (Cell to Cell) Counter H380: Cell Incoming Handover Requests
Meaning This counter measures the number of Cell Incoming Handover Requests. Along with Failed Cell Incoming Handovers (Cell to Cell), this counter can help you to better understand the situation of inter-cell incoming handovers. Along with GSM Cell to GSM Cell Outgoing Handover Measurement, this counter can help you to better understand the situation of inter-cell handovers.
Trigger Point The measurement is triggered when an incoming handover occurs between different cells.
Formula None.
11.17.3 Failed Cell Incoming Handovers (Cell to Cell) Counter Table 11-77 lists the counter of Failed Cell Incoming Handovers (Cell to Cell). Table 11-77 Counter of Failed Cell Incoming Handovers (Cell to Cell)
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Number
Counter
1
H382A: Failed Cell Incoming Handovers (Congestion)
2
H382M: Failed Cell Incoming Handovers (Other Causes)
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Meaning This type of counters measures the number of inter-cell incoming handover failures based on the failure cause. Along with Cell Incoming Handover Requests (Cell to Cell), this counter can help you to better understand the situation of inter-cell incoming handovers. Along with GSM Cell to GSM Cell Outgoing Handover Measurement, this counter can help you to better understand the situation of inter-cell handovers. The failure cause may be congestion or others. The counter H382M: Failed Cell Incoming Handovers (Other Causes) also includes directed retry (handover cause).
Trigger Point The measurement is triggered when an inter-cell incoming handover fails. The measurement is based on the failure cause.
Formula None.
11.17.4 Cell Incoming Handover Analyzed Measurement (Cell to Cell) Counter Table 11-78 lists the counters of Cell Incoming Handover Analyzed Measurement (Cell to Cell). Table 11-78 Counters of Cell Incoming Handover Analyzed Measurement (Cell to Cell) Number
Counter
1
RH383: Success Rate of Cell Incoming Handovers
2
H382: Failed Cell Incoming Handovers
3
H383: Successful Cell Incoming Handovers
Meaning None.
Trigger Point None.
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Formula Success Rate of Cell Incoming Handovers = [Successful Cell Incoming Handovers]*{100}/[Cell Incoming Handover Requests]
Failed Cell Incoming Handovers = [Failed Cell Incoming Handovers (Congestion)] + [Failed Cell Incoming Handovers (Other Causes)]
Successful Cell Incoming Handovers = [Cell Incoming Handover Requests]-[Failed Cell Incoming Handovers]
11.18 GSM Cell to GSM Cell Outgoing Handover Measurement 11.18.1 Overview GSM Cell to GSM Cell Outgoing Handover refers to a handover in which the MS is handed over from the source cell to the target cell. GSM Cell to GSM Cell Outgoing Handover Measurement aims to measure the following two types of handover: z
After receiving a measurement report from the MS, the BSC decides to perform a handover based on the interference of the current channel, the load of the cell, and the measurement report, which indicates the signal quality, strength, and TX/RX level.
z
After receiving an ASSIGN REQ message from the MSC, the BSC decides the assignment mode based on the load of the cell. There are three assignment procedures: normal assignment procedure, directed retry procedure, and assignment modification procedure. If the load of the cell is so high that the cell cannot admit a new service or that a new service will affect current services, the BSC decides to perform a handover through directed retry.
The outgoing handover procedure is as follows: Step 1 The main processing module of the BSC receives an intra-BSC handover triggering indication from the handover algorithm, an inter-BSC HO REQ message from the MSC, or a request for handover during directed retry. Step 2 The BSC sends an inter-BSC HO REQ message to the target cell through the MSC or directly requests channel resources from the target cell controlled by the same BSC for channel resources. Step 3 The target cell responds to the HO REQ message after the request and preparation succeed. Step 4 The BSC sends an HO CMD message to the MS through the source cell. Step 5 The MS accesses the network through the target cell by receiving/sending messages such as HO ACC, PHY INFO, FIRST SABM, and UA.
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Step 6 The MS sends an HO CMP message to the BSC through the target cell and releases the resources of the source cell. ----End Table 11-79 lists the counter types of GSM Cell to GSM Cell Outgoing Handover. Table 11-79 Counter types of GSM Cell to GSM Cell Outgoing Handover Counter Type
Section
Cell Outgoing Handover Commands (Cell to Cell)
11.18.2
Failed Cell Outgoing Handovers (Cell to Cell)
11.18.3
Cell Outgoing Handover Analyzed Measurement (Cell to Cell)
11.18.4
11.18.2 Cell Outgoing Handover Commands (Cell to Cell) Counter Table 11-80 lists the counters of Cell Outgoing Handover Commands (Cell to Cell). Table 11-80 Counters of Cell Outgoing Handover Commands (Cell to Cell) Number
Counter
1
H371A: Cell Outgoing Handover Commands (Uplink Quality)
2
H371B: Cell Outgoing Handover Commands (Downlink Quality)
3
H371C: Cell Outgoing Handover Commands (Uplink Strength)
4
H371D: Cell Outgoing Handover Commands (Downlink Strength)
5
H371E: Cell Outgoing Handover Commands (Timing Advance)
6
H371F: Cell Outgoing Handover Commands (Better Cell)
7
H371G: Cell Outgoing Handover Commands (Load)
8
H371H: Cell Outgoing Handover Commands (Rapid Level Drop)
9
H371I: Cell Outgoing Handover Commands (MSC Intervention)
10
H371J: Cell Outgoing Handover Commands (OM Intervention)
11
H371L: Cell Outgoing Handover Commands (Other Causes)
Meaning This counter measures the number of Cell Outgoing Handover Commands. Along with Failed Cell Outgoing Handovers (Cell to Cell), this counter can help you to better understand the situation of outgoing handovers between different cells.
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Along with GSM Cell to GSM Cell Incoming Handover Measurement, this counter can help you to better understand the situation of inter-cell handovers. The triggering conditions of inter-cell outgoing handover are as follows: z
Uplink Quality
z
Downlink Quality
z
Uplink Strength
z
Downlink Strength
z
Timing Advance
z
Better Cell
z
Cell Load
z
Rapid Level Drop
z
MSC Intervention
z
OM Intervention
z
EDGE coverage
z
Other Causes The counter H371L: Cell Outgoing Handover Commands (Other Causes) also includes directed retry (handover cause).
Trigger Point The measurement is triggered when an outgoing handover occurs between different cells.
Formula None.
11.18.3 Failed Cell Outgoing Handovers (Cell to Cell) Counter Table 11-81 lists the counters of Failed Cell Outgoing Handovers (Cell to Cell). Table 11-81 Counters of Failed Cell Outgoing Handovers (Cell to Cell)
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Number
Counter
1
H372A: Failed Cell Outgoing Handovers (Uplink Quality)
2
H372B: Failed Cell Outgoing Handovers (Downlink Quality)
3
H372C: Failed Cell Outgoing Handovers (Uplink Strength)
4
H372D: Failed Cell Outgoing Handovers (Downlink Strength)
5
H372E: Failed Cell Outgoing Handovers (Timing Advance)
6
H372F: Failed Cell Outgoing Handovers (Better Cell)
7
H372G: Failed Cell Outgoing Handovers (Load)
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Number
Counter
8
H372H: Failed Cell Outgoing Handovers (Rapid Level Drop)
9
H372I: Failed Cell Outgoing Handovers (MSC Intervention)
10
H372J: Failed Cell Outgoing Handovers (OM Intervention)
11
H372L: Failed Cell Outgoing Handovers (Other Causes)
Meaning This type of counters measures the number of inter-cell outgoing handover failures based on the triggering cause. Along with Cell Outgoing Handover Commands (Cell to Cell), this counter can help you to better understand the situation of outgoing handovers between different cells. Along with GSM Cell to GSM Cell Incoming Handover Measurement, this counter can help you to better understand the situation of inter-cell handovers. The triggering conditions of inter-cell outgoing handover are as follows: z
Uplink Quality
z
Downlink Quality
z
Uplink Strength
z
Downlink Strength
z
Timing Advance
z
Better Cell
z
Cell Load
z
Rapid Level Drop
z
MSC Intervention
z
OM Intervention
z
EDGE coverage
z
Other Causes The counter H372L: Failed Cell Outgoing Handovers (Other Causes) also includes directed retry (handover cause).
Trigger Point The measurement is triggered when an outgoing handover occurs between different cells.
Formula None.
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11.18.4 Cell Outgoing Handover Analyzed Measurement (Cell to Cell) Counter Table 11-82 lists the counters of Cell Outgoing Handover Analyzed Measurement (Cell to Cell). Table 11-82 Counters of Cell Outgoing Handover Analyzed Measurement Number
Counter
1
RH373: Success Rate of Cell Outgoing Handovers
2
H371: Cell Outgoing Handover Commands
3
H372: Failed Cell Outgoing Handovers
4
H373: Successful Cell Outgoing Handovers
Meaning None.
Trigger Point None.
Formula Success Rate of Cell Outgoing Handovers = [Successful Cell Outgoing Handovers]*{100}/[Cell Outgoing Handover Commands]
Cell Outgoing Handover Commands = [Cell Outgoing Handover Commands (Uplink Quality)] + [Cell Outgoing Handover Commands (Downlink Quality)] + [Cell Outgoing Handover Commands (Uplink Strength)] + [Cell Outgoing Handover Commands (Downlink Strength)] + [Cell Outgoing Handover Commands (Timing Advance)] + [Cell Outgoing Handover Commands (Better Cell)] + [Cell Outgoing Handover Commands (Load)] + [Cell Outgoing Handover Commands (Rapid Level Drop)] + [Cell Outgoing Handover Commands (MSC Intervention)] +
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[Cell Outgoing Handover Commands (OM Intervention)] + [Cell Outgoing Handover Commands (Other Causes)]
Failed Cell Outgoing Handovers = [Failed Cell Outgoing Handovers (Uplink Quality)] + [Failed Cell Outgoing Handovers (Downlink Quality)] + [Failed Cell Outgoing Handovers (Uplink Strength)] + [Failed Cell Outgoing Handovers (Downlink Strength)] + [Failed Cell Outgoing Handovers (Timing Advance)] + [Failed Cell Outgoing Handovers (Better Cell)] + [Failed Cell Outgoing Handovers (Load)] + [Failed Cell Outgoing Handovers (Rapid Level Drop)] + [Failed Cell Outgoing Handovers (MSC Intervention)] + [Failed Cell Outgoing Handovers (OM Intervention)] + [Failed Cell Outgoing Handovers (Other Causes)]
Successful Cell Outgoing Handovers = [Cell Outgoing Handover Commands]-[Failed Cell Outgoing Handovers]
11.19 Measurement of MRs upon Handover Initiation per Cell 11.19.1 Overview Measurement of MRs upon Handover Initiation per Cell is used to measure the receiving level, receiving quality, and timing advance (TA) status reported in handover. Table 11-83 lists the counter types of Measurement of MRs upon Handover Initiation per Cell. Table 11-83 Counter types of Measurement of MRs upon Handover Initiation per Cell Counter Type
Section
Measurement of MRs upon Handover Initiation (Receiving Quality) per Cell
11.19.2
Mean Uplink Receiving Level during Handover Initiation per Cell
11.19.3
Mean Uplink Receiving Quality during Handover Initiation per Cell
11.19.4
Concentric Cell Handover Initiation MR Analyzed Measurement (Receiving Level) per Cell
11.19.5
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Counter Type
Section
Concentric Cell Handover Initiation MR Analyzed Measurement (Timing Advance) per Cell
11.19.6
11.19.2 Measurement of MRs upon Handover Initiation (Receiving Quality) per Cell Counter Table 11-84 lists the counters of Measurement of MRs upon Handover Initiation (Receiving Quality) per Cell. Table 11-84 Counters of Measurement of MRs upon Handover Initiation (Receiving Quality) per Cell
11-202
Number
Counter
1
S3300C: Number of MRs during Handover Initiation (Uplink Receiving Level Rank = 0)
2
S3301C: Number of MRs during Handover Initiation (Uplink Receiving Level Rank = 1)
3
S3302C: Number of MRs during Handover Initiation (Uplink Receiving Level Rank = 2)
4
S3303C: Number of MRs during Handover Initiation (Uplink Receiving Level Rank = 3)
5
S3304C: Number of MRs during Handover Initiation (Uplink Receiving Level Rank = 4)
6
S3305C: Number of MRs during Handover Initiation (Uplink Receiving Level Rank = 5)
7
S3306C: Number of MRs during Handover Initiation (Uplink Receiving Level Rank = 6)
8
S3307C: Number of MRs during Handover Initiation (Uplink Receiving Level Rank = 7)
9
S3310C: Number of MRs during Handover Initiation (Uplink Receiving Quality Rank = 0)
10
S3311C: Number of MRs during Handover Initiation (Uplink Receiving Quality Rank = 1)
11
S3312C: Number of MRs during Handover Initiation (Uplink Receiving Quality Rank = 2)
12
S3313C: Number of MRs during Handover Initiation (Uplink Receiving Quality Rank = 3)
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Number
Counter
13
S3314C: Number of MRs during Handover Initiation (Uplink Receiving Quality Rank = 4)
14
S3315C: Number of MRs during Handover Initiation (Uplink Receiving Quality Rank = 5)
15
S3316C: Number of MRs during Handover Initiation (Uplink Receiving Quality Rank = 6)
16
S3317C: Number of MRs during Handover Initiation (Uplink Receiving Quality Rank = 7)
Meaning After receiving a valid measurement report from an MS or a valid preprocessing measurement report from a BTS, the BSC decides whether to initiate a handover after a decision. If deciding to initiate a handover, the BSC triggers the counters based on the receiving level (1– 7) and the receiving quality (1–7).
Trigger Point The measurement is triggered when the BSC decides to initiate a handover based on a valid measurement report from an MS or a valid preprocessing measurement report from a BTS.
Formula None.
11.19.3 Mean Uplink Receiving Level during Handover Initiation per Cell Counter AS330C: Mean Uplink Receiving Level during Handover Initiation
Meaning After receiving a valid measurement report from an MS or a valid preprocessing measurement report from a BTS, the BSC sums up the uplink receiving level based on the measurement report if deciding to initiate a handover. At the end of the measurement period, the BSC divides the sum by the number of handover initiations to obtain the Mean Uplink Receiving Level during Handover Initiation.
Trigger Point None.
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Formula Mean Uplink Receiving Level during Handover Initiation = Uplink Receiving Level during Handover Initiation/ (Outgoing External Inter-Cell Handover Requests+ Outgoing Internal Inter-Cell Handover Requests+ Internal Intra-Cell Handover Requests (SDCCH) + Internal Intra-Cell Handover Requests (TCH))
11.19.4 Mean Uplink Receiving Quality during Handover Initiation per Cell Counter AS331C: Mean Uplink Receiving Quality during Handover Initiation
Meaning After receiving a valid measurement report from an MS or a valid preprocessing measurement report from a BTS, the BSC sums up the uplink receiving quality based on the measurement report if deciding to initiate a handover. At the end of the measurement period, the BSC divides the sum by the number of handover initiations to obtain the Mean Uplink Receiving Quality during Handover Initiation.
Trigger Point None.
Formula Mean Uplink Receiving Quality during Handover Initiation = Uplink Receiving Quality during Handover Initiation/ (Outgoing External Inter-Cell Handover Requests+ Inter-BSC Cell Outgoing Handover Requests + Internal Intra-Cell Handover Requests (SDCCH) + Internal Intra-Cell Handover Requests (TCH))
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11.19.5 Concentric Cell Handover Initiation MR Analyzed Measurement (Receiving Level) per Cell Counter Table 11-85 lists the counters of Concentric Cell Handover Initiation MR Analyzed Measurement (Receiving Level) per Cell. Table 11-85 Counters of Concentric Cell Handover Initiation MR Analyzed Measurement (Receiving Level) per Cell Number
Counter
1
AS330A: Mean Uplink Receiving Level during Concentric Cell Handover Initiation (Overlay to Underlay)
2
AS332A: Mean Downlink Receiving Level during Concentric Cell Handover Initiation (Overlay to Underlay)
3
AS330B: Mean Uplink Receiving Level during Concentric Cell Handover Initiation (Underlay to Overlay)
4
AS332B: Mean Downlink Receiving Level during Concentric Cell Handover Initiation (Underlay to Overlay)
Meaning After receiving a valid measurement report from an MS or a valid preprocessing measurement report from a BTS, the BSC adds the reported uplink receiving level to the counter Uplink Receiving Level during Concentric Cell Handover Initiation (Overlay to Underlay) if deciding to initiate an overlay-to-underlay handover. In this case, the BSC also adds the downlink receiving level to the counter Downlink Receiving Level during Concentric Cell Handover Initiation (Overlay to Underlay). At the end of the measurement report, the BSC respectively divides the two sums by the number of Internal Intra-Cell Handover Requests (Overlay to Underlay) to obtain the Mean Uplink Receiving Level during Concentric Cell Handover Initiation (Overlay to Underlay) and the Mean Downlink Receiving Level during Concentric Cell Handover Initiation (Overlay to Underlay). After receiving a valid measurement report from an MS or a valid preprocessing measurement report from a BTS, the BSC adds the reported uplink receiving level to the counter Uplink Receiving Level during Concentric Cell Handover Initiation (Underlay to Overlay) if deciding to initiate an underlay-to-overlay handover. In this case, the BSC also adds the downlink receiving level to the counter Downlink Receiving Level during Concentric Cell Handover Initiation (Underlay to Overlay). At the end of the measurement report, the BSC respectively divides the two sums by the number of Internal Intra-Cell Handover Requests (Underlay to Overlay) to obtain the Mean Uplink Receiving Level during Concentric Cell Handover Initiation (Underlay to Overlay) and the Mean Downlink Receiving Level during Concentric Cell Handover Initiation (Underlay to Overlay).
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Trigger Point None.
Formula Mean Uplink Receiving Level during Concentric Cell Handover Initiation (Overlay to Underlay)= Uplink Receiving Level during Concentric Cell Handover Initiation (Overlay to Underlay)/Internal Intra-Cell Handover Requests (Overlay to Underlay) Mean Downlink Receiving Level during Concentric Cell Handover Initiation (Overlay to Underlay)= Downlink Receiving Level during Concentric Cell Handover Initiation (Overlay to Underlay)/Internal Intra-Cell Handover Requests (Overlay to Underlay) Mean Uplink Receiving Level during Concentric Cell Handover Initiation (Underlay to Overlay)= Uplink Receiving Level during Concentric Cell Handover Initiation (Underlay to Overlay)/Internal Intra-Cell Handover Requests (Underlay to Overlay) Mean Downlink Receiving Level during Concentric Cell Handover Initiation (Underlay to Overlay)= Downlink Receiving Level during Concentric Cell Handover Initiation (Underlay to Overlay)/Internal Intra-Cell Handover Requests (Underlay to Overlay)
11.19.6 Concentric Cell Handover Initiation MR Analyzed Measurement (Timing Advance) per Cell Counter Table 11-86 lists the counter of Concentric Cell Handover Initiation MR Analyzed Measurement (Timing Advance) per Cell. Table 11-86 Counters of Concentric Cell Handover Initiation MR Analyzed Measurement (Timing Advance) per Cell Number
Counter
1
AS334A: Mean Timing Advance during Concentric Cell Handover Initiation (Overlay to Underlay)
2
AS334B: Mean Timing Advance during Concentric Cell Handover Initiation (Underlay to Overlay)
Meaning After receiving a valid measurement report from an MS or a valid preprocessing measurement report from a BTS, the BSC adds the reported TA to the counter Timing Advance Level
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during Concentric Cell Handover Initiation (Overlay to Underlay) if deciding to initiate an overlay-to-underlay handover. At the end of the measurement period, the BSC divides the sum by the number of Internal Intra-Cell Handover Requests (Overlay to Underlay) to obtain the Mean Timing Advance during Concentric Cell Handover Initiation (Overlay to Underlay). After receiving a valid measurement report from an MS or a valid preprocessing measurement report from a BTS, the BSC adds the reported TA to the counter Timing Advance Level during Concentric Cell Handover Initiation (Underlay to Overlay) if deciding to initiate an underlay-to-overlay handover. At the end of the measurement period, the BSC divides the sum by the number of Internal Intra-Cell Handover Requests (Underlay to Overlay) to obtain the Mean Timing Advance during Concentric Cell Handover Initiation (Underlay to Overlay).
Trigger Point None.
Formula Mean Timing Advance during Concentric Cell Handover Initiation (Overlay to Underlay) = Timing Advance during Concentric Cell Handover Initiation (Overlay to Underlay)/Internal Intra-Cell Handover Requests (Overlay to Underlay) Mean Timing Advance during Concentric Cell Handover Initiation (Underlay to Overlay) = Timing Advance during Concentric Cell Handover Initiation (Underlay to Overlay)/Internal Intra-Cell Handover Requests (Underlay to Overlay)
11.20 KPI Measurement per Cell 11.20.1 Overview Table 11-87 lists the counters of KPI Measurement per Cell. Table 11-87 Counters of KPI Measurement per Cell Number
Counter
1
K3100: Immediate Assignment Requests
2
K3101: Immediate Assignment Commands
3
K3000: SDCCH Seizure Requests
4
K3001: Failed SDCCH Seizures due to Busy SDCCH
5
K3003: Successful SDCCH Seizures
6
K3004: Traffic Volume on SDCCH
7
K3005: Available SDCCHs
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Number
Counter
8
K3006: Configured SDCCHs
9
K3020: TCH Seizure Requests (Signaling Channel)
10
K3021: Failed TCH Seizures due to Busy TCH (Signaling Channel)
11
K3023: Successful TCH Seizures (Signaling Channel)
12
K3022: Call Drops on TCH (Signaling Channel)
13
K3024: Traffic Volume on TCH (Signaling Channel)
14
K3010A: TCH Seizure Requests (Traffic Channel)
15
K3011A: Failed TCH Seizures due to Busy TCH (Traffic Channel)
16
K3013A: Successful TCH Seizures (Traffic Channel)
17
K3012A: Call Drops on TCH in Stable State (Traffic Channel)
18
K3010B: TCH Seizure Requests in TCH Handovers (Traffic Channel)
19
K3011B: Failed TCH Seizures in TCH Handovers due to Busy TCH (Traffic Channel)
20
K3013B: Successful TCH Seizures in TCH handovers (Traffic Channel)
21
K3012B: Call Drops in TCH Handovers (Traffic Channel)
22
K3014: Traffic Volume on TCH (Traffic Channel)
23
K3015: Available TCHs
24
K3016: Configured TCHs
25
K3170: Dual-Band Handover Requests
26
K3173: Successful Dual-Band Handovers
11.20.2 Immediate Assignment Requests Counter K3100: Immediate Assignment Requests
Meaning To obtain the service from the network, an MS sends a CHAN REQ message. After receiving this message, the BTS sends a CHAN RQD message to the BSC for a dedicated channel. This counter applies to the channel accesses due to all causes but packet services.
Trigger Point None.
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Formula Immediate Assignment Requests = [Channel Requests (Circuit Service)]
11.20.3 Immediate Assignment Commands Counter K3101: Immediate Assignment Commands
Meaning In an immediate assignment procedure, the MS reports a CHAN REQ message to the BTS. The BTS sends a CHAN RQD message to the BSC. The BSC allocates a signaling channel for the MS and activates the channel. If the BSC receives a CHAN ACTIV ACK message from the BTS, it is an indication that the BTS already prepares the channel. The BSC sends an IMM ASSIGN CMD message to the MS, instructing the MS to access the specified signaling channel. This channel may be an SDCCH or TCH. This counter applies to the channel accesses due to all causes but packet services.
Trigger Point None.
Formula Immediate Assignment Commands = [Immediate Assignment Commands (Circuit Service)]
11.20.4 SDCCH Seizure Requests Counter K3000: SDCCH Seizure Requests
Meaning In an immediate assignment procedure, the MS requests a channel from the BSS. In an interBSC incoming handover procedure, the MSC requests the BSS to allocate a channel for the MS. In an intra-BSC incoming handover procedure, the BSC requests a channel from the BSS. In the procedures mentioned previously, the BSC triggers the counter after receiving a request for SDCCH.
Trigger Point None.
Formula SDCCH Seizure Requests =
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[Channel Assignment Requests in Immediate Assignment Procedure (SDCCH)] + [Internal Intra-Cell Handover Requests (SDCCH)] + [Incoming Internal Inter-Cell Handover Requests (SDCCH) (900/850-900/850)] + [Incoming Internal Inter-Cell Handover Requests (SDCCH) (1800/1900-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (SDCCH) (900/850-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (SDCCH) (1800/1900-900/850)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (900/850-900/850)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (1800/1900-1800/1900)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (900/850-1800/1900)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (1800/1900-900/850)]
11.20.5 Failed SDCCH Seizures due to Busy SDCCH Counter K3001: Failed SDCCH Seizures due to Busy SDCCH
Meaning In an immediate assignment procedure or a handover procedure, the BSC triggers the counter when the MS or MSC requests an SDCCH from the BSS but no SDCCH is available.
Trigger Point None.
Formula Failed SDCCH Seizures due to Busy SDCCH = [Failed Channel Assignments due to Busy or Not Configured Channels in Immediate Assignment Procedure (SDCCH)] + [Failed Internal Intra-Cell Handovers (Channel Unavailable) (SDCCH)] + [Failed Incoming Internal Inter-Cell Handovers (Channel Unavailable) (SDCCH)] + [Failed Incoming External Inter-Cell Handovers (Channel Unavailable) (SDCCH)]
11.20.6 Successful SDCCH Seizures Counter K3003: Successful SDCCH Seizures
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Meaning In an SDCCH immediate assignment procedure, the BTS sends a channel activation success message to the BSC. After receiving this message, the BSC regards that the assignment of SDCCH succeeds. In an SDCCH handover procedure, the BTS sends a handover detection message to the target cell. After receiving this message, the BSC regards that the assignment of SDCCH succeeds. This counter applies to the previous two cases.
Trigger Point None.
Formula Successful SDCCH Seizures= [Channel Activation Attempts in Immediate Assignment Procedure (SDCCH)][CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (SDCCH)][Channel Activation Timeouts in Immediate Assignment Procedure (SDCCH)] + [Internal Intra-Cell Handover Detection Messages Received by BSC (SDCCH)] + [Incoming Internal Inter-Cell Handover Detection Messages Received by BSC (SDCCH)] + [Incoming External Inter-Cell Handover Detection Messages Received by BSC (SDCCH)]
11.20.7 Traffic Volume on SDCCH Counter K3004: Traffic Volume on SDCCH
Meaning This counter measures the ratio of the duration for which the MS occupies the SDCCH to the measurement period. The duration for which the MS occupies the SDCCH is equal to the number of reports from the MS on the SDCCH multiplied by the reporting period 0.47s.
Trigger Point None.
Formula Traffic Volume on SDCCH = [Traffic Volume on Signaling Channel (SDCCH)]
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11.20.8 Traffic Volume on SDCCH Counter K3004: Traffic Volume on SDCCH
Meaning The unit of this counter is Erlang.
Trigger Point None.
Formula Traffic Volume on SDCCH = [Traffic Volume on Signaling Channel (SDCCH)]
11.20.9 Available SDCCHs Counter K3005: Available SDCCHs
Meaning This counter measures the number of SDCCHs in idle or busy state in a cell of the BSC. Here, the SDCCHs include those obtained dynamically from TCHs. This counter is equal to the total number of available SDCCHs divided by the number of sample points.
Trigger Point None.
Formula Available SDCCHs = [Mean Number of Available Channels (SDCCH)]
11.20.10 Configured SDCCHs Counter K3006: Configured SDCCHs
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Meaning This counter measures the number of SDCCH configured for a cell of the BSC. Here, the SDCCHs include those obtained dynamically from TCHs. This counter measures the mean number of configured SDCCHs.
Trigger Point None.
Formula Configured SDCCHs = [Mean Number of Configured Channels (SDCCH)]
11.20.11 TCH Seizure Requests (Signaling Channel) Counter K3021: TCH Seizure Requests (Signaling Channel)
Meaning This counter measures the number of the CHAN RQD messages sent from the BTS to the BSC in an immediate TCH assignment procedure.
Trigger Point None.
Formula TCH Seizure Requests (Signaling Channel) = [Channel Assignment Requests in Immediate Assignment Procedure (TCH)]
11.20.12 Failed TCH Seizures due to Busy TCH (Signaling Channel) Counter K3021: Failed TCH Seizures due to Busy TCH (Signaling Channel)
Meaning This counter measures the times the BSC has no TCH (signaling channel) to allocate in an immediate TCH assignment procedure.
Trigger Point None.
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Formula Failed TCH Seizures due to Busy TCH (Signaling Channel) = [Channel Assignment Requests in Immediate Assignment Procedure (TCH)][Immediate Assignment Commands (TCHF)][Immediate Assignment Commands (TCHH)]
11.20.13 Successful TCH Seizures (Signaling Channel) Counter K3023: Successful TCH Seizures (Signaling Channel)
Meaning This counter measures the number of successful activations of the TCHs (signaling channels) allocated by the BSC in an immediate TCH assignment procedure.
Trigger Point None.
Formula Successful TCH Seizures (Signaling Channel) = ([Channel Activation Attempts in Immediate Assignment Procedure (TCHF)] + [Channel Activation Attempts in Immediate Assignment Procedure (TCHH)])([CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (TCHF)] + [CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (TCHH)] + [Channel Activation Timeouts in Immediate Assignment Procedure (TCHF)] + [Channel Activation Timeouts in Immediate Assignment Procedure (TCHH)])
11.20.14 Call Drops on TCH (Signaling Channel) Counter K3022: Call Drops on TCH (Signaling Channel)
Meaning This counter measures the number of call drops occurred although the MS sets up on the TCH a normal connection with the service type of signaling.
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Trigger Point None.
Formula Call Drops on TCH (Signaling Channel) = [Call Drops on Signaling Channel][Call Drops on SDCCH]
11.20.15 Traffic Volume on TCH (Signaling Channel) Counter K3024: Traffic Volume on TCH (Signaling Channel)
Meaning This counter measures the ratio of the duration for which the MS occupies the TCH (signaling channel) to the measurement period. The duration for which the MS occupies the TCH is equal to the number of reports from the MS on the TCH multiplied by the reporting period 0.48s.
Trigger Point None.
Formula Traffic Volume on TCH (Signaling Channel) = [Traffic Volume on Signaling Channel (TCH)]
11.20.16 TCH Seizure Requests (Traffic Channel) Counter K3010A: TCH Seizure Requests (Traffic Channel)
Meaning This counter measures the number of TCH (traffic channel) seizure requests received by the BSC from the MSC.
Trigger Point None.
Formula TCH Seizure Requests (Traffic Channel) =
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[Assignment Requests]
11.20.17 Failed TCH Seizures due to Busy TCH (Traffic Channel) Counter K3011A: Failed TCH Seizures due to Busy TCH (Traffic Channel)
Meaning This counter measures the number of failed TCH (traffic channel) seizures due to no TCH available.
Trigger Point None.
Formula Failed TCH Seizures due to Busy TCH (Traffic Channel) = [Failed Assignments (Channel Unavailable)]
11.20.18 Successful TCH Seizures (Traffic Channel) Counter K3013A: Successful TCH Seizures (Traffic Channel)
Meaning This counter measures the number of successful TCH (traffic channel) seizures by the MS.
Trigger Point None.
Formula Successful TCH Seizures (Traffic Channel) = [Successful Assignments]
11.20.19 Call Drops on TCH in Stable State (Traffic Channel) Counter K3012A: Call Drops on TCH in Stable State (Traffic Channel)
Meaning This counter measures the number of call drops occurred after the MS is in the stable communication state on the TCH (traffic channel).
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Trigger Point None.
Formula Call Drops on TCH in Stable State (Traffic Channel) = [Call Drops on Radio Interface in Stable State (TCH)] + [Call Drops due to No MRs from MS for a Long Time (TCH)] + [Call Drops due to Abis Terrestrial Link Failure (TCH)] + [Call Drops due to Equipment Failure (TCH)] + [Call Drops due to Forced Handover (TCH)]
11.20.20 TCH Seizure Requests in TCH Handovers (Traffic Channel) Counter K3010B: TCH Seizure Requests in TCH Handovers (Traffic Channel)
Meaning In an intra-BSC incoming handover procedure, the MS requests the BSS to reallocate a TCH (traffic channel). In an inter-BSC incoming handover procedure, the MSC requests the BSS to reallocate a TCH (traffic channel). This counter measures the total number of TCH seizure requests in the procedures mentioned previously.
Trigger Point None.
Formula TCH Seizure Requests in TCH Handovers (Traffic Channel) = [Internal Intra-Cell Handover Requests (TCH)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (900/850-900/850)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (1800/1900-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (900/850-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (1800/1900-900/850)] + [Incoming External Inter-Cell Handover Requests (TCH) (900/850-900/850)] + [Incoming External Inter-Cell Handover Requests (TCH) (1800/1900-1800/1900)] + [Incoming External Inter-Cell Handover Requests (TCH) (900/850-1800/1900)] +
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[Incoming External Inter-Cell Handover Requests (TCH) (1800/1900-900/850)]
11.20.21 Failed TCH Seizures in TCH Handovers due to Busy TCH (Traffic Channel) Counter K3011B: Failed TCH Seizures in TCH Handovers due to Busy TCH (Traffic Channel)
Meaning This counter measures the number of failed TCH (traffic channel) seizures due to no TCH available in TCH handovers.
Trigger Point None.
Formula Failed TCH Seizures in TCH Handovers due to Busy TCH (Traffic Channel) = [Failed Internal Intra-Cell Handovers (Channel Unavailable) (TCH)] + [Failed Incoming Internal Inter-Cell Handovers (Channel Unavailable) (TCH)] + [Failed Incoming External Inter-Cell Handovers (Channel Unavailable) (TCH)]
11.20.22 Successful TCH Seizures in TCH Handovers (Traffic Channel) Counter K3013B: Successful TCH Seizures in TCH Handovers (Traffic Channel)
Meaning This counter measures the number of successful TCH (traffic channel) seizures by the MS during TCH handovers.
Trigger Point None.
Formula Successful TCH Seizures in TCH Handovers (Traffic Channel) = [Internal Intra-Cell Handover Detection Messages Received by BSC (TCHF)] + [Internal Intra-Cell Handover Detection Messages Received by BSC (TCHH)] + [Incoming Internal Inter-Cell Handover Detection Messages Received by BSC (TCHF)] +
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[Incoming Internal Inter-Cell Handover Detection Messages Received by BSC (TCHH)] + [Incoming External Inter-Cell Handover Detection Messages Received by BSC (TCHF)] + [Incoming External Inter-Cell Handover Detection Messages Received by BSC (TCHH)]
11.20.23 Call Drops in TCH Handovers (Traffic Channel) Counter K3012B: Call Drops in TCH Handovers (Traffic Channel)
Meaning This counter measures the number of call drops due to the radio interface during TCH (traffic channel) handovers.
Trigger Point None.
Formula Call Drops in TCH Handovers (Traffic Channel) = [Call Drops on Radio Interface in Handover State (TCH)]
11.20.24 Traffic Volume on TCH (Traffic Channel) Counter K3014: Traffic Volume on TCH (Traffic Channel)
Meaning This counter measures the ratio of the duration for which the MS occupies the TCH (traffic channel) to the measurement period. The duration for which the MS occupies the TCH is equal to the number of reports from the MS on the TCH multiplied by the reporting period 0.48s.
Trigger Point None.
Formula Traffic Volume on TCH (Traffic Channel) = [Traffic Volume on TCH]
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11.20.25 Available TCHs Counter K3015: Available TCHs
Meaning This counter measures the number of TCHs in idle or busy state in a cell of the BSC. Here, the TCHs exclude the TCHs changed to SDCCHs through dynamic adjustment but include the TCHs obtained from PDCHs through dynamic adjustment. This counter is equal to the total number of available TCHs divided by the number of sample points.
Trigger Point None.
Formula Available TCHs = [Mean Number of Available Channels (TCH)]
11.20.26 Configured TCHs Counter K3016: Configured TCHs
Meaning This counter s the number of TCHs configured for a cell of the BSC. Here, the TCHs exclude the TCHs changed to SDCCHs through dynamic adjustment but include the TCHs obtained from PDCHs through dynamic adjustment. This counter is equal to the total number of configured TCHs divided by the number of sample points.
Trigger Point None.
Formula Configured TCHs = [Mean Number of Configured Channels (TCH)]
11.20.27 Dual-Band Handover Requests Counter K3170: Dual-Band Handover Requests
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Meaning This counter measures the total number of intra-BSC and inter-BSC dual-band handover requests.
Trigger Point None.
Formula Dual-Band Handover Requests = [Incoming Internal Inter-Cell Handover Requests (SDCCH) (900/850-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (900/850-1800/1900)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (900/850-1800/1900)] + [Incoming External Inter-Cell Handover Requests (TCH) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (Directed Retry) (900/850-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (SDCCH) (1800/1900-900/850)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (1800/1900-900/850)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (1800/1900-900/850)] + [Incoming External Inter-Cell Handover Requests (TCH) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Requests (Directed Retry) (1800/1900-900/850)]
11.20.28 Successful Dual-Band Handovers Counter K3173: Successful Dual-Band Handovers
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Meaning This counter measures the total number of successful intra-BSC and inter-BSC dual-band handovers.
Trigger Point None.
Formula Successful Dual-Band Handovers= ([Incoming Internal Inter-Cell Handover Requests (SDCCH) (900/850-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (900/850-1800/1900)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (900/850-1800/1900)] + [Incoming External Inter-Cell Handover Requests (TCH) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (900/850-1800/1900)] + [Outgoing External Inter-Cell Handover Requests (Directed Retry) (900/850-1800/1900)] + [Incoming Internal Inter-Cell Handover Requests (SDCCH) (1800/1900-900/850)] + [Incoming Internal Inter-Cell Handover Requests (TCH) (1800/1900-900/850)] + [Incoming External Inter-Cell Handover Requests (SDCCH) (1800/1900-900/850)] + [Incoming External Inter-Cell Handover Requests (TCH) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Requests (TCHF) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Requests (TCHH) (Excluding Directed Retry) (1800/1900-900/850)] + [Outgoing External Inter-Cell Handover Requests (Directed Retry) (1800/1900-900/850)])([Failed Incoming Internal Inter-Cell Handovers (SDCCH) (900/850-1800/1900)] + [Failed Incoming Internal Inter-Cell Handovers (TCH) (900/850-1800/1900)] + [Failed Incoming External Inter-Cell Handovers (SDCCH) (900/850-1800/1900)] + [Failed Incoming External Inter-Cell Handovers (TCH) (900/850-1800/1900)] + [Failed Outgoing External Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (900/850-1800/1900)] +
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[Failed Outgoing External Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (900/850-1800/1900)] + [Failed Outgoing External Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (900/850-1800/1900)] + [Failed Outgoing External Inter-Cell Handovers (Directed Retry) (900/850-1800/1900)] + [Failed Incoming Internal Inter-Cell Handovers (SDCCH) (1800/1900-900/850)] + [Failed Incoming Internal Inter-Cell Handovers (TCH) (1800/1900-900/850)] + [Failed Incoming External Inter-Cell Handovers (SDCCH) (1800/1900-900/850)] + [Failed Incoming External Inter-Cell Handovers (TCH) (1800/1900-900/850)] + [Failed Outgoing External Inter-Cell Handovers (SDCCH) (Excluding Directed Retry) (1800/1900-900/850)] + [Failed Outgoing External Inter-Cell Handovers (TCHF) (Excluding Directed Retry) (1800/1900-900/850)] + [Failed Outgoing External Inter-Cell Handovers (TCHH) (Excluding Directed Retry) (1800/1900-900/850)] + [Failed Outgoing External Inter-Cell Handovers (Directed Retry) (1800/1900-900/850)])
11.21 Calls Discarded due to Overload per LAPD 11.21.1 Overview The measurement unit Calls Discarded due to Overload per LAPD is used to measure the number of random access requests discarded on LAPD. Table 11-88 lists the counter of Calls Discarded due to Overload per LAPD. Table 11-88 Counter of Calls Discarded due to Overload per LAPD Number
Counter
1
A533: Random Access Requests Discarded on LAPD
11.21.2 Random Access Requests Discarded on LAPD Counter A533: Random Access Requests Discarded on LAPD
Meaning If the number of random access messages exceeds those that can be processed in unit time, usually 100ms, the BSC discards the new requests and triggers the counter.
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Trigger Point The measurement is triggered when the BSC discards a new random access request because of the upper limit of flow control exceeded.
Formula None.
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12
MR Measurement
About This Chapter The following table lists the sections of this chapter. Section
Describes
12.1 Overview of MR Measurement
Introduces the measurement units of MR Measurement.
12.2 Number of MRs per Cell
Describes the functions and counters of Number of MRs per Cell.
12.3 Interference Band Measurement per TRX
Describes the functions and counters of Interference Band Measurement.
12.4 Power Control Messages per Cell
Describes the functions and counters of Power Control Messages per Cell.
12.5 Neighbor Cell Level Measurement per Cell
Describes the functions and counters of Neighbor Cell Level Measurement per Cell.
12.6 TCHF Receive Level Measurement per TRX
Describes the functions and counters of TCHF Receive level Measurement per TRX.
12.7 TCHH Receive Level Measurement per TRX
Describes the functions and counters of TCHH Receive level Measurement per TRX.
12.8 Receive Quality Measurement per TRX
Describes the functions and counters of Receive Quality Measurement per TRX.
12.9 Uplink-and-Downlink Balance Measurement per TRX
Describes the functions and counters of Uplink-andDownlink Balance Measurement per TRX.
12.10 Number of MRs Based on TA per TRX
Describes the functions and counters of TA Traffic Distribution Measurement per TRX.
12.11 Radio Link Failure Measurement per TRX
Describes the functions and counters of Radio Link Failure Measurement per TRX.
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Section
Describes
12.12 Radio Link Failure Measurement based on TA per TRX
Describes the functions and counters of Radio Link Failure Measurement by TA Traffic Distribution per TRX.
12.13 RQI Measurement based on TA per TRX
Describes the functions and counters of RQI Measurement by TA Traffic Distribution per TRX.
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12.1 Overview of MR Measurement After seizing a specific channel, the MS periodically reports measurement reports (MRs) to the BSC. The BSC performs power control and handover decision based on the MRs. MR Measurement refers to the measurement of counters related to MRs and helps with network optimization. Table 12-1 lists the measurement units of MR Measurement. Table 12-1 Measurement units of MR Measurement Number
Measurement Unit
1
Number of MRs per Cell
2
Interference Band Measurement per TRX
3
Power Control Messages per Cell
4
Neighbor Cell Level Measurement per Cell
5
TCHF Receive Level Measurement per TRX
6
TCHH Receive Level Measurement per TRX
7
Receive Quality Measurement per TRX
8
Uplink-and-Downlink Balance Measurement per TRX
9
Number of MRs Based on TA per TRX
10
Radio Link Failure Measurement per TRX
11
Radio Link Failure Measurement based on TA per TRX
12
RQI Measurement based on TA per TRX
12.2 Number of MRs per Cell 12.2.1 Overview of Number of MRs per Cell Number of MRs per Cell refers to the measurement of the number of MRs received by channels in a cell.
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Table 12-2 lists the counters of Number of MRs per Cell. Table 12-2 Counters of Number of MRs per Cell Counter
Section
Sampled MRs per Cell
12.2.2
Analyzed MRs per Cell
12.2.3
12.2.2 Sampled MRs per Cell Counter Table 12-3 lists the counters of Sampled MRs per Cell. Table 12-3 Counters of Sampled MRs per Cell Number
Counter
1
S3010A: MRs on Signaling Channels (SDCCH) (M900/850 Cell)
2
S3010B: MRs on Signaling Channels (SDCCH) (M1800/1900 Cell)
3
S3017A: MRs on Signaling Channels (TCHF) (M900/850 Cell)
4
S3017B: MRs on Signaling Channels (TCHF) (M1800/1900 Cell)
5
S3018A: MRs on Signaling Channels (TCHH) (M900/850 Cell)
6
S3018B: MRs on Signaling Channels (TCHH) (M1800/1900 Cell)
7
S3007A: MRs on TCHs (TCHF) (M900/850 Cell)
8
S3007B: MRs on TCHs (TCHF) (M1800/1900 Cell)
9
S3008A: MRs on TCHs (TCHH) (M900/850 Cell)
10
S3008B: MRs on TCHs (TCHH) (M1800/1900 Cell)
11
S3012: MRs on Signaling Channels (Underlaid Subcell)
12
S3011: MRs on Signaling Channels (Overlaid Subcell)
13
S3002: MRs on TCHs (Underlaid Subcell)
14
S3001: MRs on TCHs (Overlaid Subcell)
Meaning After receiving a valid MR, or a preprocessing MR, the BSC measures the number of received MRs based on the following factors: z
12-4
Frequency band the cell is in (M900/850, M1800/1900)
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Channel type (SDCCH, TCHF, and TCHH)
z
Cell type (normal, concentric)
z
Concentric cell attribute (overlaid subcell, underlaid subcell)
12 MR Measurement
Valid MRs refer to complete MRs that contain both valid uplink and downlink MRs.
Trigger Point The BSC measures the number of received MRs based on the frequency band, channel type, cell type, and concentric cell attributes, after it receives valid MRs from the MS.
Formula None.
12.2.3 Analyzed MRs per Cell Counter Table 12-4 lists the counters of Analyzed MRs per Cell. Table 12-4 Counters of Analyzed MRs per Cell Number
Counter
1
CR3557: Traffic Volume of TCHs (Underlaid Subcell)
2
CR3558: Traffic Volume of TCHs (Overlaid Subcell)
3
TS3010: Traffic Volume of Signaling Channels (SDCCH)
4
TS3019: Traffic Volume of Signaling Channels (TCH)
5
CR355A: Traffic Volume of TCHs
6
CS300: MRs on TCHs
7
CS3007: MRs on TCHs (TCHF)
8
CS3008: MRs on TCHs (TCHH)
9
CS301: MRs on Signaling Channels
10
CS3010: MRs on Signaling Channels (SDCCH)
11
CS3017: MRs on Signaling Channels (TCHF)
12
CS3018: MRs on Signaling Channels (TCHH)
Meaning None.
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The unit of the traffic volume in Table 12-4 is Erlang.
Trigger Point None.
Formula Traffic Volume of TCHs (Underlaid Subcell) = Mean Number of Busy TCHs (Underlaid Subcell) Traffic Volume of TCHs (Overlaid Subcell) = Mean Number of Busy TCHs (Overlaid Subcell) Traffic Volume of Signaling Channels (SDCCH) = ([MRs on Signaling Channels (SDCCH) (M900/850 Cell)] + [MRs on Signaling Channels (SDCCH) (M1800/1900 Cell)])*{47}/({100}*{GP}*{60}) Traffic Volume of Signaling Channels (TCH) = ([MRs on Signaling Channels (TCHF) (M900/850 Cell)] + [MRs on Signaling Channels (TCHF) (M1800/1900 Cell)] + [MRs on Signaling Channels (TCHH) (M900/850 Cell)] + [MRs on Signaling Channels (TCHH) (M1800/1900 Cell)])*{48}/({100}*{GP}*{60}) Traffic Volume of TCHs = [Mean Number of Busy TCHs (TCHF) (900/850 Cell)] + [Mean Number of Busy TCHs (TCHF) (1800/1900 Cell)] + [Mean Number of Busy TCHs (TCHH) (900/850 Cell)] + [Mean Number of Busy TCHs (TCHH) (1800/1900 Cell)] MRs on TCHs = [MRs on TCHs (TCHF) (M900/850 Cell)] + [MRs on TCHs (TCHH) (M900/850 Cell)] MRs on TCHs (TCHF) = [MRs on TCHs (TCHF) (M900/850 Cell)] + [MRs on TCHs (TCHF) (M1800/1900 Cell)] MRs on TCHs (TCHH) (M900/850 Cell) = [MRs on TCHs (TCHH) (M900/850 Cell)] + [MRs on TCHs (TCHH) (M1800/1900 Cell)] MRs on Signaling Channels = [MRs on Signaling Channels (SDCCH)] + [MRs on Signaling Channels (TCHF)] + [MRs on Signaling Channels (TCHH)] MRs on Signaling Channels (SDCCH) = [MRs on Signaling Channels (SDCCH) (M900/850 Cell)] + [MRs on Signaling Channels (SDCCH) (M1800/1900 Cell)] MRs on Signaling Channels (TCHF)= [MRs on Signaling Channels (TCHF) (M900/850 Cell)] + [MRs on Signaling Channels (TCHF) (M1800/1900 Cell)] MRs on Signaling Channels (TCHH) = [MRs on Signaling Channels (TCHH) (M900/850 Cell)] + [MRs on Signaling Channels (TCHH) (M1800/1900 Cell)]
12.3 Interference Band Measurement per TRX 12.3.1 Overview of Interference Band Measurement per TRX Interference band is the interference level contained in the RF RES IND message that the BTS reports to the BSC when the channel is idle. There are five levels. The level range of each band is set through the Local Maintenance Terminal (LMT).
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Table 12-5 lists the typical settings of the power level range. Table 12-5 Power level range of the interference band Interference Band
Power Level Range
Interference band 1
–105 dBm to –98 dBm
Interference band 2
–98 dBm to –90 dBm
Interference band 3
–90 dBm to –87 dBm
Interference band 4
–87 dBm to –85 dBm
Interference band 5
–85 dBm to –47 dBm
The higher rank suggests higher interference level. An idle channel at interference band 4 or 5 suggests the existence of interference. Interference Band Measurement per TRX refers to the measurement of idle channels that are in the interference bands. Table 12-6 lists the counters of Interference Band Measurement per TRX. Table 12-6 Counters of Interference Band Measurement per TRX Counter
Section
Sampled Measurement of Interference Band per TRX
12.3.2
Analyzed Measurement of Interference Band per TRX
12.3.3
12.3.2 Sampled Measurement of Interference Band per TRX Counter Table 12-7 lists the counters of Sampled Measurement of Interference Band. Table 12-7 Counters of Sampled Measurement of Interference Band Number
Counter
1
S4210A: Uplink Interference Indication Messages (SDCCH)
2
S4210B: Downlink Interference Indication Messages (SDCCH)
3
S4219A: Uplink Interference Indication Messages (TCH)
4
S4219B: Downlink Interference Indication Messages (TCH)
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Meaning In HUAWEI Channel Allocation Algorithm II, the BTS compares the level and quality in the MR with the thresholds set in data configuration. If both the level and the quality exceed the preset thresholds, the counters are measured based on the channel type (TCH or SDCCH) and interference direction (uplink or downlink).
Trigger Point The counters are measured based on the channel type (TCH or SDCCH) and interference direction (uplink or downlink) if the level and the quality exceed the preset thresholds.
Formula None.
12.3.3 Analyzed Measurement of Interference Band per TRX Counter Table 12-8 lists the counters of Analyzed Measurement of Interference Band per TRX. Table 12-8 Counters of Analyzed Measurement of Interference Band per TRX
12-8
Number
Counter
1
AS4200A: Mean Number of SDCCHs in Interference Band 1
2
AS4200B: Mean Number of SDCCHs in Interference Band 2
3
AS4200C: Mean Number of SDCCHs in Interference Band 3
4
AS4200D: Mean Number of SDCCHs in Interference Band 4
5
AS4200E: Mean Number of SDCCHs in Interference Band 5
6
AS4207A: Mean Number of TCHFs in Interference Band 1
7
AS4207B: Mean Number of TCHFs in Interference Band 2
8
AS4207C: Mean Number of TCHFs in Interference Band 3
9
AS4207D: Mean Number of TCHFs in Interference Band 4
10
AS4207E: Mean Number of TCHFs in Interference Band 5
11
AS4208A: Mean Number of TCHHs in Interference Band 1
12
AS4208B: Mean Number of TCHHs in Interference Band 2
13
AS4208C: Mean Number of TCHHs in Interference Band 3
14
AS4208D: Mean Number of TCHHs in Interference Band 4
15
AS4208E: Mean Number of TCHHs in Interference Band 5
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Meaning The BSC receives from the BTS the RF RES IND message that contains the interference band levels of all the idle channels in a TRX. Then the BSC measures the counters according to the channel type (TCHF, TCHH, or SDCCH) and the interference band level. Mean Number of SDCCHs in Interference Band = Number of SDCCHs in Interference Band /[Sampled Number of Interference Bands]
Trigger Point None.
Formula Mean Number of SDCCHs in Interference Band 1 = [Number of SDCCHs in Interference Band 1]/[ Sampled Number of Interference Bands] Mean Number of SDCCHs in Interference Band 2 = [Number of SDCCHs in Interference Band 2]/[ Sampled Number of Interference Bands] Mean Number of SDCCHs in Interference Band 3 = [Number of SDCCHs in Interference Band 3]/[ Sampled Number of Interference Bands] Mean Number of SDCCHs in Interference Band 4 = [Number of SDCCHs in Interference Band 4]/[ Sampled Number of Interference Bands] Mean Number of SDCCHs in Interference Band 5 = [Number of SDCCHs in Interference Band 5]/[ Sampled Number of Interference Bands] Mean Number of TCHFs in Interference Band 1 = [Number of TCHFs in Interference Band 1]/[ Sampled Number of Interference Bands] Mean Number of TCHFs in Interference Band 2 = [Number of TCHFs in Interference Band 2]/[ Sampled Number of Interference Bands] Mean Number of TCHFs in Interference Band 3 = [Number of TCHFs in Interference Band 3]/[ Sampled Number of Interference Bands]
Mean Number of TCHFs in Interference Band 4 = [Number of TCHFs in Interference Band 4]/[ Sampled Number of Interference Bands] Mean Number of TCHFs in Interference Band 5 = [Number of TCHFs in Interference Band 5]/[ Sampled Number of Interference Bands] Mean Number of TCHHs in Interference Band 1 = [Number of TCHHs in Interference Band 1]/[ Sampled Number of Interference Bands] Mean Number of TCHHs in Interference Band 2 = [Number of TCHHs in Interference Band 2]/[ Sampled Number of Interference Bands] Mean Number of TCHHs in Interference Band 3 = [Number of TCHHs in Interference Band 3]/[ Sampled Number of Interference Bands] Mean Number of TCHHs in Interference Band 4 = [Number of TCHHs in Interference Band 4]/[ Sampled Number of Interference Bands]
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Mean Number of TCHHs in Interference Band 5 = [Number of TCHHs in Interference Band 5]/[ Sampled Number of Interference Bands]
12.4 Power Control Messages per Cell 12.4.1 Overview of Power Control Messages per Cell Power control refers to changing the transmission power of the MS or the BTS. The purpose of power control is to reduce the interference, raise the spectrum usage, and prolong the lifespan of the MS battery. The factors that influence power control are the receive level and quality of received signals in the MRs. If the quality of both the receive level and the received signals are good, you can reduce the interference by lowering the transmission power at the peer end. Power Control Messages per Cell refers to the measurement of the transmission power and the receive level between the BTS and the MS. Table 12-9 lists the counters of Power Control Messages per Cell. Table 12-9 Counters of Power Control Messages per Cell
12-10
Counter
Section
Number of Power Control Messages per Cell
12.4.2
Sampled Power Rank During Power Control per Cell
12.4.3
Analyzed Power Rank During Power Control per Cell
12.4.4
Sampled Level of Power Control Signals per Cell
12.4.5
Analyzed Level of Power Control Signals per Cell
12.4.6
Sampling Quality of Power Control Signals per Cell
12.4.7
Analyzed Quality of Power Control Signals per Cell
12.4.8
Sampled Duration of Maximum Power per Cell
12.4.9
Analyzed Duration of Maximum Power per Cell
12.4.10
Distance Between MS and BTS per Cell
12.4.11
Maximum Distance Between MS and BTS per Cell
12.4.12
Number of Power Control Messages per Cell
12.4.13
Mean Distance Between MS and BTS per Cell
12.4.14
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12.4.2 Number of Power Control Messages per Cell Counter Table 12-10 lists the counters of Number of Power Control Messages per Cell. Table 12-10 Counters of Number of Power Control Messages per Cell Number
Counter
1
S3230A: Number of Power Control Increase Messages Sent to MS
2
S3230B: Number of Power Control Decrease Messages Sent to MS
3
S3231A: Number of Power Control Increase Messages Sent to BTS
4
S3231B: Number of Power Control Decrease Messages Sent to BTS
Meaning After receiving the MR, the BSC compares the uplink receive level and the uplink receive quality with the preset thresholds and makes the following decisions: z
If the transmission power of the MS need be increased, the BSC sends the power increase request to the MS, and the S3230A: Number of Power Control Increase Messages Sent to MS is measured.
z
If the transmission power of the MS need be decreased, the BSC sends the power decrease request to the MS, and the S3230B: Number of Power Control Decrease Messages Sent to MS is measured.
z
If the transmission power of the BTS need be increased, the BSC sends the power increase request to the BTS, and the S3231A: Number of Power Control Increase Messages Sent to BTS is measured.
z
If the transmission power of the BTS need be decreased, the BSC sends the power decrease request to the BTS, and the S3231B: Number of Power Control Decrease Messages Sent to BTS is measured.
Trigger Point The BSC measures the counters based on the power control objectives (MS or BTS) and type (to increase or decrease the transmit power) after receiving the valid MRs from the MS.
Formula None.
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12.4.3 Sampled Power Rank During Power Control per Cell Counter Table 12-11 lists the counters of Sampled Power Rank During Power Control per Cell. Table 12-11 Counters of Sampled Power Rank During Power Control per Cell Number
Counter
1
S3240: MS Power Rank
2
S3241: BTS Power Rank
3
S327A: Number of Times (Maximum Uplink Transmit Power)
4
S327B: Number of Times (Maximum Downlink Transmit Power)
Meaning In S3240: MS Power Rank, higher rank of the transmit power indicates smaller transmit power of the MS. In S3241: BTS Power Rank, higher rank of the transmit power indicates smaller transmit power of the BTS. The counter S327A: Number of Times (Maximum Uplink Transmit Power) increases by 1 when the rank of the uplink transmit power in the MR is lower than or equal to the rank of the Maximum MS Transmit Power in the system message. The counter S327B: Number of Times (Maximum Downlink Transmit Power) increases by 1 when the rank of the downlink transmit power is 0.
Trigger Point The BSC measures the MS Power Rank and the BTS Power Rank based on the transmit power ranks of the MS and the BTS after receiving the valid MRs from the MS.
Formula None.
12.4.4 Analyzed Power Rank During Power Control per Cell Counter Table 12-12 lists the counters of Analyzed Power Rank During Power Control per Cell. Table 12-12 Counters of Analyzed Power Rank During Power Control per Cell
12-12
Number
Counter
1
AS3240: Mean Power Rank of MS
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Counter
2
AS3241: Mean Power Rank of BTS
12 MR Measurement
Meaning The counters measure the mean transmit power of the MS and the BTS.
Trigger Point None.
Formula Mean Power Rank of MS = [MS Power Rank]/[Number of Power Control Messages] Mean Power Rank of BTS = [BTS Power Rank]/[ Number of Power Control Messages]
12.4.5 Sampled Level of Power Control Signals per Cell Counter Table 12-13 lists the counters of Sampled Level of Power Control Signals per Cell. Table 12-13 Counters of Sampled Level of Power Control Signals per Cell Number
Counter
1
S325B: Strength of Downlink Signals
2
S325A: Strength of Uplink Signals
Meaning The counters measure the uplink and downlink receive level.
Trigger Point The BSC measures the counters based on the uplink and downlink receive level after receiving the valid MRs from the MS.
Formula None.
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12.4.6 Analyzed Level of Power Control Signals per Cell Counter Table 12-14 lists the counters of Analyzed Level of Power Control Signals per Cell. Table 12-14 Counters of Analyzed Level of Power Control Signals per Cell Number
Counter
1
AS325B: Mean Strength of Downlink Signals
2
AS325A: Mean Strength of Uplink Signals
Meaning The counters measure the mean uplink and downlink receive level.
Trigger Point None.
Formula Mean Strength of Downlink Signals = [Strength of Downlink Signals]/[ Number of Power Control Messages] Mean Strength of Uplink Signals = [Strength of Uplink Signals]/[ Number of Power Control Messages]
12.4.7 Sampling Quality of Power Control Signals per Cell Counter Table 12-15 lists the counters of Quality of Power Control Signals per Cell. Table 12-15 Counters of Quality of Power Control Signals per Cell Number
Counter
1
S326B: Quality of Downlink Signals
2
S326A: Quality of Uplink Signals
Meaning The counters measure the quality of the uplink and downlink received signals. The receive quality has eight ranks, and lower rank suggests better quality.
12-14
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Trigger Point The BSC measures the counters based on the quality ranks of the uplink and downlink received signals after receiving valid MRs from the MS.
Formula None.
12.4.8 Analyzed Quality of Power Control Signals per Cell Counter Table 12-16 lists the counters of Analyzed Quality of Power Control Signals per Cell. Table 12-16 Counters of Analyzed Quality of Power Control Signals per Cell Number
Counter
1
AS326B: Mean Quality of Downlink Signals
2
AS326A: Mean Quality of Uplink Signals
Meaning The counters measure the mean receive quality of the uplink and downlink signals. The receive quality has eight ranks, and lower rank suggests better quality.
Trigger Point None.
Formula Mean Quality of Downlink Signals = [Quality of Downlink Signals]/[Number of Power Control Messages] Mean Quality of Uplink Signals = [Quality of Uplink Signals]/[Number of Power Control Messages]
12.4.9 Sampled Duration of Maximum Power per Cell Counter Table 12-17 lists the counters of Sampled Duration of Maximum Power per Cell. Table 12-17 Counters of Sampled Duration of Maximum Power per Cell Number
Counter
1
TS327B: Duration of Maximum Downlink Power
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Number
Counter
2
TS327A: Duration of Maximum Uplink Power
Meaning This counter measures the duration of the maximum uplink and downlink power.
Trigger Point If the downlink transmit power rank is 0, the counter TS427B: Duration of Maximum Downlink Power increases by 0.48 s. If the uplink transmit power rank is lower than or equal to the Maximum Transmit Power Control Level in the system information, the counter TS427A: Duration of Maximum Uplink Power increases by 0.48 s.
Formula None.
12.4.10 Analyzed Duration of Maximum Power per Cell Counter Table 12-18 lists the counters of Analyzed Duration of Maximum Power per Cell. Table 12-18 Counters of Analyzed Duration of Maximum Power per Cell Number
Counter
1
RS327B: Ratio of Maximum Downlink Power Duration (%)
2
RS327A: Ratio of Maximum Uplink Power Duration (%)
Meaning RS327B: Ratio of Maximum Downlink Power Duration (%) measures the ratio of the Duration of Maximum Downlink Power to the Number of Power Control Messages. Great value of this counter suggests bad coverage or improper settings of power control parameters. RS327A: Ratio of Maximum Uplink Power Duration (%) measures the ratio of the Duration of Maximum Uplink Power to the Number of Power Control Messages. Great value of this counter suggests low rank of the uplink receive level or improper settings of power control parameters.
Trigger Point None.
12-16
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Formula Ratio of Maximum Downlink Power Duration (%) = {100}*[ Duration of Maximum Downlink Power]/([Number of Power Control Messages]*{48}/{100}) Ratio of Maximum Uplink Power Duration (%)= {100}*[ Duration of Maximum Uplink Power]/([Number of Power Control Messages]*{48}/{100})
12.4.11 Distance Between MS and BTS per Cell Counter S3280: Distance Between MS and BTS
Meaning The distance between the MS and the BTS is measured in TA (one TA equals to 550 m.) The value of TA increases with the distance. This counter measures the distance between the MS and the BTS.
Trigger Point The counter increases by 1 when the BSC receives a valid MR that contains the TA.
Formula None.
12.4.12 Maximum Distance Between MS and BTS per Cell Counter S3281: Maximum Distance Between MS and BTS
Meaning The distance between the MS and the BTS is measured in TA (one TA equals to 550 m.) The value of TA increases with the distance. This counter measures the maximum distance between the MS and the BTS.
Trigger Point This counter is measured when the BSC records the maximum distance (in TA) in a valid MR that the MS reports in a GP.
Formula None.
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12.4.13 Number of Power Control Messages per Cell Counter S329: Number of Power Control Messages
Meaning This counter measures the total number of cell power control messages.
Trigger Point This counter is measured when the BSC receives a valid MR that contains a power control message.
Formula None.
12.4.14 Mean Distance Between MS and BTS Counter AS3280: Mean Distance Between MS and BTS.
Meaning This counter measures the mean distance between the MS and the BTS.
Trigger Point None.
Formula Mean Distance Between MS and BTS = [Distance Between MS and BTS]/[Number of Power Control Messages]
12.5 Neighbor Cell Level Measurement per Cell 12.5.1 Overview of Neighbor Cell Level Measurement per Cell Neighbor Cell Level Measurement per Cell refers to the measurement of mean receive level of neighbor cells. This measurement unit helps to determine whether to configure neighbor cells.
12-18
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Table 12-19 lists the counters of Neighbor Cell Level Measurement per Cell. Table 12-19 Counters of Neighbor Cell Level Measurement per Cell Number
Counter
1
S360: Strength of Signals in Neighbor Cells
2
S361: Number of MRs of Neighbor Cells
3
AS360: Mean Strength of Signals in Neighbor Cells
12.5.2 Strength of Signals in Neighbor Cells Counter S360: Strength of Signals in Neighbor Cells.
Meaning This counter measures the strength of signals in neighbor cells.
Trigger Point This counter is measured when the BSC receives a valid MR and accumulates the receive level of all the neighbor cells.
This counter's measurement object can be configured. If the measurement object is not configured, this counter is not measured.
Formula None.
12.5.3 Number of MRs of Neighbor Cells Counter S361: Number of MRs of Neighbor Cells.
Meaning This counter measures the number of MRs in neighbor cells.
Trigger Point This counter is measured based on the neighboring cells when the BSC receives a valid MR from the MS.
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This counter's measurement object can be configured. If the measurement object is not configured, this counter is not measured.
Formula None.
12.5.4 Mean Strength of Signals in Neighbor Cells Counter AS360: Mean Strength of Signals in Neighbor Cells.
Meaning This counter measures the mean strength of signals in neighbor cells in a GP.
Trigger Point None.
Formula Mean Strength of Signals in Neighbor Cells= [Strength of Signals in Neighbor Cells]/[ MRs of Neighbor Cells]
12.6 TCHF Receive Level Measurement per TRX Counter The valid MRs that the BSC receives contain the ranks of the uplink and downlink receive level and the ranks of the uplink and downlink receive quality. The receive level has eight ranks, and higher rank suggests greater receive level, as shown in Table 12-20. Table 12-20 Rank of the receive level
12-20
Rank of Receive Level
Receive Level(dBm)
0
<–100
1
(-100,85]
2
(-85,-80]
3
(-80,-75]
4
(-75,-70]
5
(-70,-65]
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Rank of Receive Level
Receive Level(dBm)
6
(-65,-60]
7
>-60
The receive quality has eight ranks, and higher rank suggests worse receive quality, as shown in Table 12-21. Table 12-21 Rank of the receive quality based on the bit error rate Rank of Receive Quality
Bit Error Rate
0
< 0.2%
1
0.2%–0.4%
2
0.4%–0.8%
3
0.8%–1.6%
4
1.6%–3.2%
5
3.2%–6.4%
6
6.4%–12.8%
7
> 12.8%
TCHF Receive Level Measurement per TRX refers to the measurement of the sampled receive level ranks and receive quality ranks in the MRs on the TCHF. Table 12-22 lists the counters of TCHF Receive Level Measurement per TRX. Table 12-22 Counters of TCHF Receive Level Measurement per TRX Number
Counter
1
S4100A: Number of MRs on Uplink TCHF (Receive Level Rank 0 and Receive Quality Rank 0)
2
S4101A: Number of MRs on Uplink TCHF (Receive Level Rank 0 and Receive Quality Rank 1)
3
S4102A: Number of MRs on Uplink TCHF (Receive Level Rank 0 and Receive Quality Rank 2)
4
S4103A: Number of MRs on Uplink TCHF (Receive Level Rank 0 and Receive Quality Rank 3)
5
S4104A: Number of MRs on Uplink TCHF (Receive Level Rank 0 and Receive Quality Rank 4)
6
S4105A: Number of MRs on Uplink TCHF (Receive Level Rank 0 and Receive Quality Rank 5)
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12-22
Number
Counter
7
S4106A: Number of MRs on Uplink TCHF (Receive Level Rank 0 and Receive Quality Rank 6)
8
S4107A: Number of MRs on Uplink TCHF (Receive Level Rank 0 and Receive Quality Rank 7)
9
S4110A: Number of MRs on Uplink TCHF (Receive Level Rank 1 and Receive Quality Rank 0)
10
S4111A: Number of MRs on Uplink TCHF (Receive Level Rank 1 and Receive Quality Rank 1)
11
S4112A: Number of MRs on Uplink TCHF (Receive Level Rank 1 and Receive Quality Rank 2)
12
S4113A: Number of MRs on Uplink TCHF (Receive Level Rank 1 and Receive Quality Rank 3)
13
S4114A: Number of MRs on Uplink TCHF (Receive Level Rank 1 and Receive Quality Rank 4)
14
S4115A: Number of MRs on Uplink TCHF (Receive Level Rank 1 and Receive Quality Rank 5)
15
S4116A: Number of MRs on Uplink TCHF (Receive Level Rank 1 and Receive Quality Rank 6)
16
S4117A: Number of MRs on Uplink TCHF (Receive Level Rank 1 and Receive Quality Rank 7)
17
S4120A: Number of MRs on Uplink TCHF (Receive Level Rank 1 and Receive Quality Rank 8)
18
S4121A: Number of MRs on Uplink TCHF (Receive Level Rank 2 and Receive Quality Rank 1)
19
S4122A: Number of MRs on Uplink TCHF (Receive Level Rank 2 and Receive Quality Rank 2)
20
S4123A: Number of MRs on Uplink TCHF (Receive Level Rank 2 and Receive Quality Rank 3)
21
S4124A: Number of MRs on Uplink TCHF (Receive Level Rank 2 and Receive Quality Rank 4)
22
S4125A: Number of MRs on Uplink TCHF (Receive Level Rank 2 and Receive Quality Rank 5)
23
S4126A: Number of MRs on Uplink TCHF (Receive Level Rank 2 and Receive Quality Rank 6)
24
S4127A: Number of MRs on Uplink TCHF (Receive Level Rank 2 and Receive Quality Rank 7)
25
S4130A: Number of MRs on Uplink TCHF (Receive Level Rank 3 and Receive Quality Rank 0)
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Number
Counter
26
S4131A: Number of MRs on Uplink TCHF (Receive Level Rank 3 and Receive Quality Rank 1)
27
S4132A: Number of MRs on Uplink TCHF (Receive Level Rank 3 and Receive Quality Rank 2)
28
S4133A: Number of MRs on Uplink TCHF (Receive Level Rank 3 and Receive Quality Rank 3)
29
S4134A: Number of MRs on Uplink TCHF (Receive Level Rank 3 and Receive Quality Rank 4)
30
S4135A: Number of MRs on Uplink TCHF (Receive Level Rank 3 and Receive Quality Rank 5)
31
S4136A: Number of MRs on Uplink TCHF (Receive Level Rank 3 and Receive Quality Rank 6)
32
S4137A: Number of MRs on Uplink TCHF (Receive Level Rank 3 and Receive Quality Rank 7)
33
S4140A: Number of MRs on Uplink TCHF (Receive Level Rank 4 and Receive Quality Rank 0)
34
S4141A: Number of MRs on Uplink TCHF (Receive Level Rank 4 and Receive Quality Rank 1)
35
S4142A: Number of MRs on Uplink TCHF (Receive Level Rank 4 and Receive Quality Rank 2)
36
S4143A: Number of MRs on Uplink TCHF (Receive Level Rank 4 and Receive Quality Rank 3)
37
S4144A: Number of MRs on Uplink TCHF (Receive Level Rank 4 and Receive Quality Rank 4)
38
S4145A: Number of MRs on Uplink TCHF (Receive Level Rank 4 and Receive Quality Rank 5)
39
S4146A: Number of MRs on Uplink TCHF (Receive Level Rank 4 and Receive Quality Rank 6)
40
S4147A: Number of MRs on Uplink TCHF (Receive Level Rank 4 and Receive Quality Rank 7)
41
S4150A: Number of MRs on Uplink TCHF (Receive Level Rank 5 and Receive Quality Rank 0)
42
S4151A: Number of MRs on Uplink TCHF (Receive Level Rank 5 and Receive Quality Rank 1)
43
S4152A: Number of MRs on Uplink TCHF (Receive Level Rank 5 and Receive Quality Rank 2)
44
S4153A: Number of MRs on Uplink TCHF (Receive Level Rank 5 and Receive Quality Rank 3)
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12-24
Number
Counter
45
S4154A: Number of MRs on Uplink TCHF (Receive Level Rank 5 and Receive Quality Rank 4)
46
S4155A: Number of MRs on Uplink TCHF (Receive Level Rank 5 and Receive Quality Rank 5)
47
S4156A: Number of MRs on Uplink TCHF (Receive Level Rank 5 and Receive Quality Rank 6)
48
S4157A: Number of MRs on Uplink TCHF (Receive Level Rank 5 and Receive Quality Rank 7)
49
S4160A: Number of MRs on Uplink TCHF (Receive Level Rank 6 and Receive Quality Rank 0)
50
S4161A: Number of MRs on Uplink TCHF (Receive Level Rank 6 and Receive Quality Rank 1)
51
S4162A: Number of MRs on Uplink TCHF (Receive Level Rank 6 and Receive Quality Rank 2)
52
S4163A: Number of MRs on Uplink TCHF (Receive Level Rank 6 and Receive Quality Rank 3)
53
S4164A: Number of MRs on Uplink TCHF (Receive Level Rank 6 and Receive Quality Rank 4)
54
S4165A: Number of MRs on Uplink TCHF (Receive Level Rank 6 and Receive Quality Rank 5)
55
S4166A: Number of MRs on Uplink TCHF (Receive Level Rank 6 and Receive Quality Rank 6)
56
S4167A: Number of MRs on Uplink TCHF (Receive Level Rank 6 and Receive Quality Rank 7)
57
S4170A: Number of MRs on Uplink TCHF (Receive Level Rank 7 and Receive Quality Rank 0)
58
S4171A: Number of MRs on Uplink TCHF (Receive Level Rank 7 and Receive Quality Rank 1)
59
S4172A: Number of MRs on Uplink TCHF (Receive Level Rank 7 and Receive Quality Rank 2)
60
S4173A: Number of MRs on Uplink TCHF (Receive Level Rank 7 and Receive Quality Rank 3)
61
S4174A: Number of MRs on Uplink TCHF (Receive Level Rank 7 and Receive Quality Rank 4)
62
S4175A: Number of MRs on Uplink TCHF (Receive Level Rank 7 and Receive Quality Rank 5)
63
S4176A: Number of MRs on Uplink TCHF (Receive Level Rank 7 and Receive Quality Rank 6)
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Number
Counter
64
S4177A: Number of MRs on Uplink TCHF (Receive Level Rank 7 and Receive Quality Rank 7)
65
S4100B: Number of MRs on Downlink TCHF (Receive Level Rank 0 and Receive Quality Rank 0)
66
S4101B: Number of MRs on Downlink TCHF (Receive Level Rank 0 and Receive Quality Rank 1)
67
S4102B: Number of MRs on Downlink TCHF (Receive Level Rank 0 and Receive Quality Rank 2)
68
S4103B: Number of MRs on Downlink TCHF (Receive Level Rank 0 and Receive Quality Rank 3)
69
S4104B: Number of MRs on Downlink TCHF (Receive Level Rank 0 and Receive Quality Rank 4)
70
S4105B: Number of MRs on Downlink TCHF (Receive Level Rank 0 and Receive Quality Rank 5)
71
S4106B: Number of MRs on Downlink TCHF (Receive Level Rank 0 and Receive Quality Rank 6)
72
S4107B: Number of MRs on Downlink TCHF (Receive Level Rank 0 and Receive Quality Rank 7)
73
S4110B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 0)
74
S4111B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 1)
75
S4112B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 2)
76
S4113B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 3)
77
S4114B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 4)
78
S4115B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 5)
79
S4116B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 6)
80
S4117B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 7)
81
S4120B: Number of MRs on Downlink TCHF (Receive Level Rank 2 and Receive Quality Rank 0)
82
S4121B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 1)
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12-26
Number
Counter
83
S4122B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 2)
84
S4123B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 3)
85
S4124B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 4)
86
S4125B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 5)
87
S4126B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 6)
88
S4127B: Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank 7)
89
S4130B: Number of MRs on Downlink TCHF (Receive Level Rank 3 and Receive Quality Rank 0)
90
S4131B: Number of MRs on Downlink TCHF (Receive Level Rank 3 and Receive Quality Rank 1)
91
S4132B: Number of MRs on Downlink TCHF (Receive Level Rank 3 and Receive Quality Rank 2)
92
S4133B: Number of MRs on Downlink TCHF (Receive Level Rank 3 and Receive Quality Rank 3)
93
S4134B: Number of MRs on Downlink TCHF (Receive Level Rank 3 and Receive Quality Rank 4)
94
S4135B: Number of MRs on Downlink TCHF (Receive Level Rank 3 and Receive Quality Rank 5)
95
S4136B: Number of MRs on Downlink TCHF (Receive Level Rank 3 and Receive Quality Rank 6)
96
S4137B: Number of MRs on Downlink TCHF (Receive Level Rank 3 and Receive Quality Rank 7)
97
S4140B: Number of MRs on Downlink TCHF (Receive Level Rank 4 and Receive Quality Rank 0)
98
S4141B: Number of MRs on Downlink TCHF (Receive Level Rank 4 and Receive Quality Rank 1)
99
S4142B: Number of MRs on Downlink TCHF (Receive Level Rank 4 and Receive Quality Rank 2)
100
S4143B: Number of MRs on Downlink TCHF (Receive Level Rank 4 and Receive Quality Rank 3)
101
S4144B: Number of MRs on Downlink TCHF (Receive Level Rank 4 and Receive Quality Rank 4)
Huawei Technologies Proprietary
Issue 02 (2007-02-06)
HUAWEI BSC6000 Base Station Controller Performance Counter Reference
12 MR Measurement
Number
Counter
102
S4145B: Number of MRs on Downlink TCHF (Receive Level Rank 4 and Receive Quality Rank 5)
103
S4146B: Number of MRs on Downlink TCHF (Receive Level Rank 4 and Receive Quality Rank 6)
104
S4147B: Number of MRs on Downlink TCHF (Receive Level Rank 4 and Receive Quality Rank 7)
105
S4150B: Number of MRs on Downlink TCHF (Receive Level Rank 5 and Receive Quality Rank 0)
106
S4151B: Number of MRs on Downlink TCHF (Receive Level Rank 5 and Receive Quality Rank 1)
107
S4152B: Number of MRs on Downlink TCHF (Receive Level Rank 5 and Receive Quality Rank 2)
108
S4153B: Number of MRs on Downlink TCHF (Receive Level Rank 5 and Receive Quality Rank 3)
109
S4154B: Number of MRs on Downlink TCHF (Receive Level Rank 5 and Receive Quality Rank 4)
110
S4155B: Number of MRs on Downlink TCHF (Receive Level Rank 5 and Receive Quality Rank 5)
111
S4156B: Number of MRs on Downlink TCHF (Receive Level Rank 5 and Receive Quality Rank 6)
112
S4157B: Number of MRs on Downlink TCHF (Receive Level Rank 5 and Receive Quality Rank 7)
113
S4160B: Number of MRs on Downlink TCHF (Receive Level Rank 6 and Receive Quality Rank 0)
114
S4161B: Number of MRs on Downlink TCHF (Receive Level Rank 6 and Receive Quality Rank 1)
115
S4162B: Number of MRs on Downlink TCHF (Receive Level Rank 6 and Receive Quality Rank 2)
116
S4163B: Number of MRs on Downlink TCHF (Receive Level Rank 6 and Receive Quality Rank 3)
117
S4164B: Number of MRs on Downlink TCHF (Receive Level Rank 6 and Receive Quality Rank 4)
118
S4165B: Number of MRs on Downlink TCHF (Receive Level Rank 6 and Receive Quality Rank 5)
119
S4166B: Number of MRs on Downlink TCHF (Receive Level Rank 6 and Receive Quality Rank 6)
120
S4167B: Number of MRs on Downlink TCHF (Receive Level Rank 6 and Receive Quality Rank 7)
Issue 02 (2007-02-06)
Huawei Technologies Proprietary
12-27
HUAWEI BSC6000 Base Station Controller Performance Counter Reference
12 MR Measurement
Number
Counter
121
S4170B: Number of MRs on Downlink TCHF (Receive Level Rank 7 and Receive Quality Rank 0)
122
S4171B: Number of MRs on Downlink TCHF (Receive Level Rank 7 and Receive Quality Rank 1)
123
S4172B: Number of MRs on Downlink TCHF (Receive Level Rank 7 and Receive Quality Rank 2)
124
S4173B: Number of MRs on Downlink TCHF (Receive Level Rank 7 and Receive Quality Rank 3)
125
S4174B: Number of MRs on Downlink TCHF (Receive Level Rank 7 and Receive Quality Rank 4)
126
S4175B: Number of MRs on Downlink TCHF (Receive Level Rank 7 and Receive Quality Rank 5)
127
S4176B: Number of MRs on Downlink TCHF (Receive Level Rank 7 and Receive Quality Rank 6)
128
S4177B: Number of MRs on Downlink TCHF (Receive Level Rank 7 and Receive Quality Rank 7)
Meaning The BSC measures these counters based on the following factors after receiving a valid MR or a valid preprocessing MR: z
TCHF uplink receive level rank (0–7)
z
TCHF uplink receive quality rank (0–7)
z
TCHF downlink receive level rank (0–7)
z
TCHF downlink receive quality rank (0–7)
Trigger Point The BSC measures these counters based on the uplink or downlink receive level and the uplink or downlink receive quality after receiving a valid MR from the MS. The BSC measures these counters based on the uplink or downlink receive level and the uplink or downlink receive quality after receiving a valid preprocessing MR from the BTS.
Formula None.
12-28
Huawei Technologies Proprietary
Issue 02 (2007-02-06)
HUAWEI BSC6000 Base Station Controller Performance Counter Reference
12 MR Measurement
12.7 TCHH Receive Level Measurement per TRX Counter TCHH Receive Level Measurement per TRX refers to the measurement of the sampled receive level ranks and receive quality ranks in the MRs on the TCHH. Table 12-23 lists the counters of TCHH Receive Level Measurement per TRX. Table 12-23 Counters of TCHH Receive Level Measurement per TRX Number
Counter
1
S4100C: Number of MRs on Uplink TCHH (Receive Level Rank 0 and Receive Quality Rank 0)
2
S4101C: Number of MRs on Uplink TCHH (Receive Level Rank 0 and Receive Quality Rank 1)
3
S4102C: Number of MRs on Uplink TCHH (Receive Level Rank 0 and Receive Quality Rank 2)
4
S4103C: Number of MRs on Uplink TCHH (Receive Level Rank 0 and Receive Quality Rank 3)
5
S4104C: Number of MRs on Uplink TCHH (Receive Level Rank 0 and Receive Quality Rank 4)
6
S4105C: Number of MRs on Uplink TCHH (Receive Level Rank 0 and Receive Quality Rank 5)
7
S4106C: Number of MRs on Uplink TCHH (Receive Level Rank 0 and Receive Quality Rank 6)
8
S4107C: Number of MRs on Uplink TCHH (Receive Level Rank 0 and Receive Quality Rank 7)
9
S4110C: Number of MRs on Uplink TCHH (Receive Level Rank 1 and Receive Quality Rank 0)
10
S4111C: Number of MRs on Uplink TCHH (Receive Level Rank 1 and Receive Quality Rank 1)
11
S4112C: Number of MRs on Uplink TCHH (Receive Level Rank 1 and Receive Quality Rank 2)
12
S4113C: Number of MRs on Uplink TCHH (Receive Level Rank 1 and Receive Quality Rank 3)
13
S4114C: Number of MRs on Uplink TCHH (Receive Level Rank 1 and Receive Quality Rank 4)
14
S4115C: Number of MRs on Uplink TCHH (Receive Level Rank 1 and Receive Quality Rank 5)
15
S4116C: Number of MRs on Uplink TCHH (Receive Level Rank 1 and Receive Quality Rank 6)
Issue 02 (2007-02-06)
Huawei Technologies Proprietary
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference
12 MR Measurement
12-30
Number
Counter
16
S4117C: Number of MRs on Uplink TCHH (Receive Level Rank 1 and Receive Quality Rank 7)
17
S4120C: Number of MRs on Uplink TCHH (Receive Level Rank 2 and Receive Quality Rank 0)
18
S4121C: Number of MRs on Uplink TCHH (Receive Level Rank 2 and Receive Quality Rank 1)
19
S4122C: Number of MRs on Uplink TCHH (Receive Level Rank 2 and Receive Quality Rank 2)
20
S4123C: Number of MRs on Uplink TCHH (Receive Level Rank 2 and Receive Quality Rank 3)
21
S4124C: Number of MRs on Uplink TCHH (Receive Level Rank 2 and Receive Quality Rank 4)
22
S4125C: Number of MRs on Uplink TCHH (Receive Level Rank 2 and Receive Quality Rank 5)
23
S4126C: Number of MRs on Uplink TCHH (Receive Level Rank 2 and Receive Quality Rank 6)
24
S4127C: Number of MRs on Uplink TCHH (Receive Level Rank 2 and Receive Quality Rank 7)
25
S4130C: Number of MRs on Uplink TCHH (Receive Level Rank 3 and Receive Quality Rank 0)
26
S4131C: Number of MRs on Uplink TCHH (Receive Level Rank 3 and Receive Quality Rank 1)
27
S4132C: Number of MRs on Uplink TCHH (Receive Level Rank 3 and Receive Quality Rank 2)
28
S4133C: Number of MRs on Uplink TCHH (Receive Level Rank 3 and Receive Quality Rank 3)
29
S4134C: Number of MRs on Uplink TCHH (Receive Level Rank 3 and Receive Quality Rank 4)
30
S4135C: Number of MRs on Uplink TCHH (Receive Level Rank 3 and Receive Quality Rank 5)
31
S4136C: Number of MRs on Uplink TCHH (Receive Level Rank 3 and Receive Quality Rank 6)
32
S4137C: Number of MRs on Uplink TCHH (Receive Level Rank 3 and Receive Quality Rank 7)
33
S4140C: Number of MRs on Uplink TCHH (Receive Level Rank 4 and Receive Quality Rank 0)
34
S4141C: Number of MRs on Uplink TCHH (Receive Level Rank 4 and Receive Quality Rank 1)
Huawei Technologies Proprietary
Issue 02 (2007-02-06)
HUAWEI BSC6000 Base Station Controller Performance Counter Reference
12 MR Measurement
Number
Counter
35
S4142C: Number of MRs on Uplink TCHH (Receive Level Rank 4 and Receive Quality Rank 2)
36
S4143C: Number of MRs on Uplink TCHH (Receive Level Rank 4 and Receive Quality Rank 3)
37
S4144C: Number of MRs on Uplink TCHH (Receive Level Rank 4 and Receive Quality Rank 4)
38
S4145C: Number of MRs on Uplink TCHH (Receive Level Rank 4 and Receive Quality Rank 5)
39
S4146C: Number of MRs on Uplink TCHH (Receive Level Rank 4 and Receive Quality Rank 6)
40
S4147C: Number of MRs on Uplink TCHH (Receive Level Rank 4 and Receive Quality Rank 7)
41
S4150C: Number of MRs on Uplink TCHH (Receive Level Rank 5 and Receive Quality Rank 0)
42
S4151C: Number of MRs on Uplink TCHH (Receive Level Rank 5 and Receive Quality Rank 1)
43
S4152C: Number of MRs on Uplink TCHH (Receive Level Rank 5 and Receive Quality Rank 2)
44
S4153C: Number of MRs on Uplink TCHH (Receive Level Rank 5 and Receive Quality Rank 3)
45
S4154C: Number of MRs on Uplink TCHH (Receive Level Rank 5 and Receive Quality Rank 4)
46
S4155C: Number of MRs on Uplink TCHH (Receive Level Rank 5 and Receive Quality Rank 5)
47
S4156C: Number of MRs on Uplink TCHH (Receive Level Rank 5 and Receive Quality Rank 6)
48
S4157C: Number of MRs on Uplink TCHH (Receive Level Rank 5 and Receive Quality Rank 7)
49
S4160C: Number of MRs on Uplink TCHH (Receive Level Rank 6 and Receive Quality Rank 0)
50
S4161C: Number of MRs on Uplink TCHH (Receive Level Rank 6 and Receive Quality Rank 1)
51
S4162C: Number of MRs on Uplink TCHH (Receive Level Rank 6 and Receive Quality Rank 2)
52
S4163C: Number of MRs on Uplink TCHH (Receive Level Rank 6 and Receive Quality Rank 3)
53
S4164C: Number of MRs on Uplink TCHH (Receive Level Rank 6 and Receive Quality Rank 4)
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Huawei Technologies Proprietary
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference
12 MR Measurement
12-32
Number
Counter
54
S4165C: Number of MRs on Uplink TCHH (Receive Level Rank 6 and Receive Quality Rank 5)
55
S4166C: Number of MRs on Uplink TCHH (Receive Level Rank 6 and Receive Quality Rank 6)
56
S4167C: Number of MRs on Uplink TCHH (Receive Level Rank 6 and Receive Quality Rank 7)
57
S4170C: Number of MRs on Uplink TCHH (Receive Level Rank 7 and Receive Quality Rank 0)
58
S4171C: Number of MRs on Uplink TCHH (Receive Level Rank 7 and Receive Quality Rank 1)
59
S4172C: Number of MRs on Uplink TCHH (Receive Level Rank 7 and Receive Quality Rank 2)
60
S4173C: Number of MRs on Uplink TCHH (Receive Level Rank 7 and Receive Quality Rank 3)
61
S4174C: Number of MRs on Uplink TCHH (Receive Level Rank 7 and Receive Quality Rank 4)
62
S4175C: Number of MRs on Uplink TCHH (Receive Level Rank 7 and Receive Quality Rank 5)
63
S4176C: Number of MRs on Uplink TCHH (Receive Level Rank 7 and Receive Quality Rank 6)
64
S4177C: Number of MRs on Uplink TCHH (Receive Level Rank 7 and Receive Quality Rank 7)
65
S4100D: Number of MRs on Downlink TCHH (Receive Level Rank 0 and Receive Quality Rank 0)
66
S4101D: Number of MRs on Downlink TCHH (Receive Level Rank 0 and Receive Quality Rank 1)
67
S4102D: Number of MRs on Downlink TCHH (Receive Level Rank 0 and Receive Quality Rank 2)
68
S4103D: Number of MRs on Downlink TCHH (Receive Level Rank 0 and Receive Quality Rank 3)
69
S4104D: Number of MRs on Downlink TCHH (Receive Level Rank 0 and Receive Quality Rank 4)
70
S4105D: Number of MRs on Downlink TCHH (Receive Level Rank 0 and Receive Quality Rank 5)
71
S4106D: Number of MRs on Downlink TCHH (Receive Level Rank 0 and Receive Quality Rank 6)
72
S4107D: Number of MRs on Downlink TCHH (Receive Level Rank 0 and Receive Quality Rank 7)
Huawei Technologies Proprietary
Issue 02 (2007-02-06)
HUAWEI BSC6000 Base Station Controller Performance Counter Reference
12 MR Measurement
Number
Counter
73
S4110D: Number of MRs on Downlink TCHH (Receive Level Rank 1 and Receive Quality Rank 0)
74
S4111D: Number of MRs on Downlink TCHH (Receive Level Rank 1 and Receive Quality Rank 1)
75
S4112D: Number of MRs on Downlink TCHH (Receive Level Rank 1 and Receive Quality Rank 2)
76
S4113D: Number of MRs on Downlink TCHH (Receive Level Rank 1 and Receive Quality Rank 3)
77
S4114D: Number of MRs on Downlink TCHH (Receive Level Rank 1 and Receive Quality Rank 4)
78
S4115D: Number of MRs on Downlink TCHH (Receive Level Rank 1 and Receive Quality Rank 5)
79
S4116D: Number of MRs on Downlink TCHH (Receive Level Rank 1 and Receive Quality Rank 6)
80
S4117D: Number of MRs on Downlink TCHH (Receive Level Rank 1 and Receive Quality Rank 7)
81
S4120D: Number of MRs on Downlink TCHH (Receive Level Rank 2 and Receive Quality Rank 0)
82
S4121D: Number of MRs on Downlink TCHH (Receive Level Rank 2 and Receive Quality Rank 1)
83
S4122D: Number of MRs on Downlink TCHH (Receive Level Rank 2 and Receive Quality Rank 2)
84
S4123D: Number of MRs on Downlink TCHH (Receive Level Rank 2 and Receive Quality Rank 3)
85
S4124D: Number of MRs on Downlink TCHH (Receive Level Rank 2 and Receive Quality Rank 4)
86
S4125D: Number of MRs on Downlink TCHH (Receive Level Rank 2 and Receive Quality Rank 5)
87
S4126D: Number of MRs on Downlink TCHH (Receive Level Rank 2 and Receive Quality Rank 6)
88
S4127D: Number of MRs on Downlink TCHH (Receive Level Rank 2 and Receive Quality Rank 7)
89
S4130D: Number of MRs on Downlink TCHH (Receive Level Rank 3 and Receive Quality Rank 0)
90
S4131D: Number of MRs on Downlink TCHH (Receive Level Rank 3 and Receive Quality Rank 1)
91
S4132D: Number of MRs on Downlink TCHH (Receive Level Rank 3 and Receive Quality Rank 2)
Issue 02 (2007-02-06)
Huawei Technologies Proprietary
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference
12 MR Measurement
12-34
Number
Counter
92
S4133D: Number of MRs on Downlink TCHH (Receive Level Rank 3 and Receive Quality Rank 3)
93
S4134D: Number of MRs on Downlink TCHH (Receive Level Rank 3 and Receive Quality Rank 4)
94
S4135D: Number of MRs on Downlink TCHH (Receive Level Rank 3 and Receive Quality Rank 5)
95
S4136D: Number of MRs on Downlink TCHH (Receive Level Rank 3 and Receive Quality Rank 6)
96
S4137D: Number of MRs on Downlink TCHH (Receive Level Rank 3 and Receive Quality Rank 7)
97
S4140D: Number of MRs on Downlink TCHH (Receive Level Rank 4 and Receive Quality Rank 0)
98
S4141D: Number of MRs on Downlink TCHH (Receive Level Rank 4 and Receive Quality Rank 1)
99
S4142D: Number of MRs on Downlink TCHH (Receive Level Rank 4 and Receive Quality Rank 2)
100
S4143D: Number of MRs on Downlink TCHH (Receive Level Rank 4 and Receive Quality Rank 3)
101
S4144D: Number of MRs on Downlink TCHH (Receive Level Rank 4 and Receive Quality Rank 4)
102
S4145D: Number of MRs on Downlink TCHH (Receive Level Rank 4 and Receive Quality Rank 5)
103
S4146D: Number of MRs on Downlink TCHH (Receive Level Rank 4 and Receive Quality Rank 6)
104
S4147D: Number of MRs on Downlink TCHH (Receive Level Rank 4 and Receive Quality Rank 7)
105
S4150D: Number of MRs on Downlink TCHH (Receive Level Rank 5 and Receive Quality Rank 0)
106
S4151D: Number of MRs on Downlink TCHH (Receive Level Rank 5 and Receive Quality Rank 1)
107
S4152D: Number of MRs on Downlink TCHH (Receive Level Rank 5 and Receive Quality Rank 2)
108
S4153D: Number of MRs on Downlink TCHH (Receive Level Rank 5 and Receive Quality Rank 3)
109
S4154D: Number of MRs on Downlink TCHH (Receive Level Rank 5 and Receive Quality Rank 4)
110
S4155D: Number of MRs on Downlink TCHH (Receive Level Rank 5 and Receive Quality Rank 5)
Huawei Technologies Proprietary
Issue 02 (2007-02-06)
HUAWEI BSC6000 Base Station Controller Performance Counter Reference
12 MR Measurement
Number
Counter
111
S4156D: Number of MRs on Downlink TCHH (Receive Level Rank 5 and Receive Quality Rank 6)
112
S4157D: Number of MRs on Downlink TCHH (Receive Level Rank 5 and Receive Quality Rank 7)
113
S4160D: Number of MRs on Downlink TCHH (Receive Level Rank 6 and Receive Quality Rank 0)
114
S4161D: Number of MRs on Downlink TCHH (Receive Level Rank 6 and Receive Quality Rank 1)
115
S4162D: Number of MRs on Downlink TCHH (Receive Level Rank 6 and Receive Quality Rank 2)
116
S4163D: Number of MRs on Downlink TCHH (Receive Level Rank 6 and Receive Quality Rank 3)
117
S4164D: Number of MRs on Downlink TCHH (Receive Level Rank 6 and Receive Quality Rank 4)
118
S4165D: Number of MRs on Downlink TCHH (Receive Level Rank 6 and Receive Quality Rank 5)
119
S4166D: Number of MRs on Downlink TCHH (Receive Level Rank 6 and Receive Quality Rank 6)
120
S4167D: Number of MRs on Downlink TCHH (Receive Level Rank 6 and Receive Quality Rank 7)
121
S4170D: Number of MRs on Downlink TCHH (Receive Level Rank 7 and Receive Quality Rank 0)
122
S4171D: Number of MRs on Downlink TCHH (Receive Level Rank 7 and Receive Quality Rank 1)
123
S4172D: Number of MRs on Downlink TCHH (Receive Level Rank 7 and Receive Quality Rank 2)
124
S4173D: Number of MRs on Downlink TCHH (Receive Level Rank 7 and Receive Quality Rank 3)
125
S4174D: Number of MRs on Downlink TCHH (Receive Level Rank 7 and Receive Quality Rank 4)
126
S4175D: Number of MRs on Downlink TCHH (Receive Level Rank 7 and Receive Quality Rank 5)
127
S4176D: Number of MRs on Downlink TCHH (Receive Level Rank 7 and Receive Quality Rank 6)
128
S4177D: Number of MRs on Downlink TCHH (Receive Level Rank 7 and Receive Quality Rank 7)
Issue 02 (2007-02-06)
Huawei Technologies Proprietary
12-35
HUAWEI BSC6000 Base Station Controller Performance Counter Reference
12 MR Measurement
Meaning The BSC measures these counters based on the following factors after receiving a valid MR or a valid preprocessing MR: z
TCHH uplink receive level rank (0–7)
z
TCHH uplink receive quality rank (0–7)
z
TCHH downlink receive level rank (0–7)
z
TCHH downlink receive quality rank (0–7)
Trigger Point The BSC measures these counters based on the uplink or downlink receive level and the uplink or downlink receive quality after receiving a valid MR or a valid preprocessing MR.
Formula None.
12.8 Receive Quality Measurement per TRX Counter Receive Quality Measurement per TRX refers to the measurement of the mean receive level rank and the mean receive quality rank on the TCH. Table 12-24 lists the counters of Receive Quality Measurement per TRX. Table 12-24 Counters of Receive Quality Measurement per TRX
12-36
Number
Counter
1
CS410A: Number of MRs on Uplink TCHF (Mean Receive Quality Rank 0)
2
CS411A: Number of MRs on Uplink TCHF (Mean Receive Quality Rank 1)
3
CS412A: Number of MRs on Uplink TCHF (Mean Receive Quality Rank 2)
4
CS413A: Number of MRs on Uplink TCHF (Mean Receive Quality Rank 3)
5
CS414A: Number of MRs on Uplink TCHF (Mean Receive Quality Rank 4)
6
CS415A: Number of MRs on Uplink TCHF (Mean Receive Quality Rank 5)
7
CS416A: Number of MRs on Uplink TCHF (Mean Receive Quality Rank 6)
8
CS417A: Number of MRs on Uplink TCHF (Mean Receive Quality Rank 7)
9
CS410B: Number of MRs on Downlink TCHF (Mean Receive Quality Rank 0)
10
CS411B: Number of MRs on Downlink TCHF (Mean Receive Quality Rank 1)
Huawei Technologies Proprietary
Issue 02 (2007-02-06)
HUAWEI BSC6000 Base Station Controller Performance Counter Reference
12 MR Measurement
Number
Counter
11
CS412B: Number of MRs on Downlink TCHF (Mean Receive Quality Rank 2)
12
CS413B: Number of MRs on Downlink TCHF (Mean Receive Quality Rank 3)
13
CS414B: Number of MRs on Downlink TCHF (Mean Receive Quality Rank 4)
14
CS415B: Number of MRs on Downlink TCHF (Mean Receive Quality Rank 5)
15
CS416B: Number of MRs on Downlink TCHF (Mean Receive Quality Rank 6)
16
CS417B: Number of MRs on Downlink TCHF (Mean Receive Quality Rank 7)
17
CS410C: Number of MRs on Uplink TCHH (Mean Rank of Receive Quality 0)
18
CS411C: Number of MRs on Uplink TCHH (Mean Receive Quality Rank 1)
19
CS412C: Number of MRs on Uplink TCHH (Mean Receive Quality Rank 2)
20
CS413C: Number of MRs on Uplink TCHH (Mean Receive Quality Rank 3)
21
CS414C: Number of MRs on Uplink TCHH (Mean Receive Quality Rank 4)
22
CS415C: Number of MRs on Uplink TCHH (Mean Receive Quality Rank 5)
23
CS416C: Number of MRs on Uplink TCHH (Mean Receive Quality Rank 6)
24
CS417C: Number of MRs on Uplink TCHH (Mean Receive Quality Rank 7)
25
CS410D: Number of MRs on Downlink TCHH (Mean Receive Quality Rank 0)
26
CS411D: Number of MRs on Downlink TCHH (Mean Receive Quality Rank 1)
27
CS412D: Number of MRs on Downlink TCHH (Mean Receive Quality Rank 2)
28
CS413D: Number of MRs on Downlink TCHH (Mean Receive Quality Rank 3)
29
CS414D: Number of MRs on Downlink TCHH (Mean Receive Quality Rank 4)
30
CS415D: Number of MRs on Downlink TCHH (Mean Receive Quality Rank 5)
31
CS416D: Number of MRs on Downlink TCHH (Mean Receive Quality Rank 6)
32
CS417D: Number of MRs on Downlink TCHH (Mean Receive Quality Rank 7)
Issue 02 (2007-02-06)
Huawei Technologies Proprietary
12-37
HUAWEI BSC6000 Base Station Controller Performance Counter Reference
12 MR Measurement
Meaning The counters measure the number of MRs on the uplink and downlink TCHH when the mean receive quality rank is from 0 to 7.
Trigger Point None.
Formula In the formulas of this section, the value range of N is 0–7.
Number of MRs on Uplink TCHF (Mean Receive Quality Rank N) = Number of MRs on Uplink TCHF (Receive Level Rank 0 and Receive Quality Rank N+ Number of MRs on Uplink TCHF (Receive Level Rank 1 and Receive Quality Rank N + Number of MRs on Uplink TCHF (Receive Level Rank 2 and Receive Quality Rank N + Number of MRs on Uplink TCHF (Receive Level Rank 3 and Receive Quality Rank N + Number of MRs on Uplink TCHF (Receive Level Rank 4 and Receive Quality Rank N + Number of MRs on Uplink TCHF (Receive Level Rank 5 and Receive Quality Rank N + Number of MRs on Uplink TCHF (Receive Level Rank 6 and Receive Quality Rank N + Number of MRs on Uplink TCHF (Receive Level Rank 7 and Receive Quality Rank N
Number of MRs on Downlink TCHF (Mean Receive Quality Rank N) = Number of MRs on Downlink TCHF (Receive Level Rank 0 and Receive Quality Rank N+ Number of MRs on Downlink TCHF (Receive Level Rank 1 and Receive Quality Rank N + Number of MRs on Downlink TCHF (Receive Level Rank 2 and Receive Quality Rank N + Number of MRs on Downlink TCHF (Receive Level Rank 3 and Receive Quality Rank N + Number of MRs on Downlink TCHF (Receive Level Rank 4 and Receive Quality Rank N + Number of MRs on Downlink TCHF (Receive Level Rank 5 and Receive Quality Rank N + Number of MRs on Downlink TCHF (Receive Level Rank 6 and Receive Quality Rank N + Number of MRs on Downlink TCHF (Receive Level Rank 7 and Receive Quality Rank N
Number of MRs on Uplink TCHH (Mean Rank of Receive Quality N)= Number of MRs on Uplink TCHH (Receive Level Rank 0 and Receive Quality Rank N+ Number of MRs on Uplink TCHH (Receive Level Rank 1 and Receive Quality Rank N + Number of MRs on Uplink TCHH (Receive Level Rank 2 and Receive Quality Rank N + Number of MRs on Uplink TCHH (Receive Level Rank 3 and Receive Quality Rank N +
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference
12 MR Measurement
Number of MRs on Uplink TCHH (Receive Level Rank 4 and Receive Quality Rank N + Number of MRs on Uplink TCHH (Receive Level Rank 5 and Receive Quality Rank N + Number of MRs on Uplink TCHH (Receive Level Rank 6 and Receive Quality Rank N + Number of MRs on Uplink TCHH (Receive Level Rank 7 and Receive Quality Rank N
Number of MRs on Downlink TCHH (Mean Receive Quality Rank N = Number of MRs on Downlink TCHH (Receive Level Rank 0 and Receive Quality Rank N+ Number of MRs on Downlink TCHH (Receive Level Rank 1 and Receive Quality Rank N + Number of MRs on Downlink TCHH (Receive Level Rank 2 and Receive Quality Rank N + Number of MRs on Downlink TCHH (Receive Level Rank 3 and Receive Quality Rank N + Number of MRs on Downlink TCHH (Receive Level Rank 4 and Receive Quality Rank N + Number of MRs on Downlink TCHH (Receive Level Rank 5 and Receive Quality Rank N + Number of MRs on Downlink TCHH (Receive Level Rank 6 and Receive Quality Rank N + Number of MRs on Downlink TCHH (Receive Level Rank 7 and Receive Quality Rank N
12.9 Uplink-and-Downlink Balance Measurement per TRX Counter Proper power estimation during network planning is a prerequisite for normal operation of the system. The uplink and downlink signals in the coverage area must be balanced. z
If the uplink coverage is larger than the downlink coverage, the signals at the edge of the cell are weak and easily "submerged" by the stronger signals from other cells.
z
If the downlink coverage is larger than the uplink coverage, the MS is forced to station at the signals. The unlink signals are so weak that the voice quality is affected.
The balance is not absolute. You can judge whether the uplink and downlink signals are in balance or not according to the MRs on the Abis interface. The MR that the BSC receives contains the uplink receive level and the downlink receive level. The uplink and downlink balance level is determined by the following formula: Downlink receive level – uplink receive level – 6
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For details, see Table 12-25. Table 12-25 Mapping between the uplink/downlink balance rank and the receive level Uplink-and-Downlink Balance Rank
Downlink Receive Level – Uplink Receive level – 6
1
ñ –15 dB
2
–14 dB, –13 dB, –12 dB, –11 dB, –10 dB
3
–9 dB, –8 dB, –7 dB, –6 dB
4
–5 dB, –4 dB, –3 dB
5
–2 dB, –1dB, 0 dB
6
0 dB
7
1 dB, 2 dB
8
3 dB, 4 dB, 5 dB
9
6 dB, 7 dB, 8 dB, 9 dB
10
10 dB, 11 dB, 12 dB, 13 dB, 14 dB
11
15 dB, 16 dB, 17 dB, 18 dB, 19 dB, 20 dB
If the measurement result shows that the uplink/downlink is frequently in balance level 1, infer that the downlink loss is too large or the downlink transmit power is too weak. If the measurement result shows that the uplink/downlink is frequently in balance level 11, infer that the uplink loss is too large or the uplink transmit power is too weak. You can use the results to locate faults in transferring channels such as the TRX and the antenna system. Table 12-26 lists the counters of Uplink-and-Downlink Balance Measurement per TRX. Table 12-26 Counters of Uplink-and-Downlink Balance Measurement per TRX
12-40
Number
Counter
1
S462A: Number of MRs (Uplink-and-Downlink Balance Level = 1)
2
S462B: Number of MRs (Uplink-and-Downlink Balance Level = 2)
3
S462C: Number of MRs (Uplink-and-Downlink Balance Level = 3)
4
S462D: Number of MRs (Uplink-and-Downlink Balance Level = 4)
5
S462E: Number of MRs (Uplink-and-Downlink Balance Level = 5)
6
S462F: Number of MRs (Uplink-and-Downlink Balance Level = 6)
7
S462G: Number of MRs (Uplink-and-Downlink Balance Level = 7)
8
S462H: Number of MRs (Uplink-and-Downlink Balance Level = 8)
9
S462I: Number of MRs (Uplink-and-Downlink Balance Level = 9)
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Number
Counter
10
S462J: Number of MRs (Uplink-and-Downlink Balance Level = 10)
11
S462K: Number of MRs (Uplink-and-Downlink Balance Level = 11)
Meaning The BSC gets the uplink-and-downlink balance level from the valid MRs sent by the MS and the valid preprocessing MRs sent by the BTS according to Table 12-25. Then the BSC measures the number of MRs when the uplink-and-downlink balance level is from 1 to 11.
Trigger Point The counters are measured when: z
The BSC receives valid MRs from the MS and gets the uplink-and-downlink level (1–11) from the MS according to Table 12-25.
z
The BSC receives valid preprocessing MRs from the BTS and gets the uplink-anddownlink level (1–11) from the MS according to Table 12-25.
Formula None.
12.10 Number of MRs Based on TA per TRX Counter Number of MRs Based on TA per TRX refers to the measurement of the number of MRs that the MS reports in a certain range of TA. The measurement suggests the traffic volume in different distances between the MS and the BTS and helps with network maintenance and optimization. Table 12-27 lists the counters of Number of MRs based on TA per TRX. Table 12-27 Counters of Number of MRs based on TA per TRX Number
Counter
1
S4400A: Number of MRs (TA = 0)
2
S4401A: Number of MRs (TA = 1)
3
S4402A: Number of MRs (TA = 2)
4
S4403A: Number of MRs (TA = 3)
5
S4404A: Number of MRs (TA = 4)
6
S4405A: Number of MRs (TA = 5)
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Number
Counter
7
S4406A: Number of MRs (TA = 6)
8
S4407A: Number of MRs (TA = 7)
9
S4408A: Number of MRs (TA = 8)
10
S4409A: Number of MRs (TA = 9)
11
S4410A: Number of MRs (TA = 10)
12
S4411A: Number of MRs (TA = 11)
13
S4412A: Number of MRs (TA = 12)
14
S4413A: Number of MRs (TA = 13)
15
S4414A: Number of MRs (TA = 14)
16
S4415A: Number of MRs (TA = 15)
17
S4416A: Number of MRs (TA = 16)
18
S4417A: Number of MRs (TA = 17)
19
S4418A: Number of MRs (TA = 18)
20
S4419A: Number of MRs (TA = 19)
21
S4420A: Number of MRs (TA = 20)
22
S4421A: Number of MRs (TA = 21)
23
S4422A: Number of MRs (TA = 22)
24
S4423A: Number of MRs (TA = 23)
25
S4424A: Number of MRs (TA = 24)
26
S4425A: Number of MRs (TA = 25)
27
S4426A: Number of MRs (TA = 26)
28
S4427A: Number of MRs (TA = 27)
29
S4428A: Number of MRs (TA = 28)
30
S4429A: Number of MRs (TA = 29)
31
S4430A: Number of MRs (TA = 30 or 31)
32
S4432A: Number of MRs (TA = 32 or 33)
33
S4434A: Number of MRs (TA = 34 or 35)
34
S4436A: Number of MRs (TA = 36 or 37)
35
S4438A: Number of MRs (TA = 38 or 39)
36
S4440A: Number of MRs (TA = 40 to 44)
37
S4445A: Number of MRs (TA = 45 to 49)
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Number
Counter
38
S4450A: Number of MRs (TA = 50 to 54)
39
S4455A: Number of MRs (TA = 55 to 63)
40
S4463A: Number of MRs (TA greater than 63)
12 MR Measurement
Meaning The counters measure the number of MRs when TA is from 0 to 219.
Trigger Point The BSC measures the number of valid MRs and preprocessing MRs from the MS based on the TA.
Formula None.
12.11 Radio Link Failure Measurement per TRX 12.11.1 Overview of Radio Link Failure Measurement per TRX Radio Link Failure Measurement per TRX refers to the measurement of level, quality, and TA in the MR during call drops. Table 12-28 lists the counters of Radio Link Failure Measurement per TRX. Table 12-28 Counters of Radio Link Failure Measurement per TRX Counter
Section
Uplink and Downlink Level During Radio Link Failure per TRX
12.11.2
Mean Uplink and Downlink Level During Radio Link Failure per TRX
12.11.3
Uplink and Downlink Quality During Radio Link Failure per TRX
12.11.4
Mean Uplink and Downlink Quality During Radio Link Failure per TRX
12.11.5
TA During Radio Link Failure per TRX
12.11.6
Mean TA During Radio Link Failure TRX
12.11.7
Number of Radio Link Failures per TRX
12.11.8
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12.11.2 Uplink and Downlink Level During Radio Link Failure per TRX Counter Table 12-29 lists the counters of Uplink and Downlink Level During Radio Link Failure per TRX. Table 12-29 Counters of Uplink and Downlink Level During Radio Link Failure per TRX Number
Counter
1
S3300D: Uplink Level During Radio Link Failure (SDCCH)
2
S3320D: Downlink Level During Radio Link Failure (SDCCH)
3
S3307D: Uplink Level During Radio Link Failure (TCHF)
4
S3327D: Downlink Level During Radio Link Failure (TCHF)
5
S3308D: Uplink Level During Radio Link Failure (TCHH)
6
S3328D: Downlink Level During Radio Link Failure (TCHH)
Meaning The counters measure the uplink and downlink level on the SDCCHs, TCHFs, and TCHHs during radio link failure.
Trigger Point The counters are measured by adding the uplink and downlink level in the last valid MRs on the SDCCH, TCHF, and TCHH before radio link failure.
Formula None.
12.11.3 Mean Uplink and Downlink Level During Radio Link Failure per TRX Counter Table 12-30 lists the counters of Mean Uplink and Downlink Level During Radio Link Failure per TRX. Table 12-30 Counters of Mean Uplink and Downlink Level During Radio Link Failure per TRX
12-44
Number
Counter
1
AS4300D: Mean Uplink Level During Radio Link Failure (SDCCH)
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Number
Counter
2
AS4320D: Mean Downlink Level During Radio Link Failure (SDCCH)
3
AS4307D: Mean Uplink Level During Radio Link Failure (TCHF)
4
AS4327D: Mean Downlink Level During Radio Link Failure (TCHF)
5
AS4308D: Mean Uplink Level During Radio Link Failure (TCHH)
6
AS4328D: Mean Downlink Level During Radio Link Failure (TCHH)
Meaning This counter measures the mean uplink and downlink level on the SDCCH, TCHF, and TCHH during radio link failure.
Trigger Point None.
Formula Mean Uplink Level During Radio Link Failure (SDCCH) = [Uplink Level During Radio Link Failure (SDCCH)]/[Radio Link Failures (SDCCH)] Mean Downlink Level During Radio Link Failure (SDCCH) = [Downlink Level During Radio Link Failure (SDCCH)]/[ Radio Link Failures (SDCCH)] Mean Uplink Level During Radio Link Failure (TCHF) = [Uplink Level During Radio Link Failure (TCHF)]/[ Radio Link Failures (TCHF)] Mean Downlink Level During Radio Link Failure (TCHF) = [Downlink Level During Radio Link Failure (TCHF)]/[ Radio Link Failures (TCHF)] Mean Uplink Level During Radio Link Failure (TCHH) = [Uplink Level During Radio Link Failure (TCHH)]/[ Radio Link Failures (TCHH)] Mean Downlink Level During Radio Link Failure (TCHH) = [Downlink Level During Radio Link Failure (TCHH)]/[ Radio Link Failures (TCHH)]
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12.11.4 Uplink and Downlink Quality During Radio Link Failure per TRX Counter Table 12-31 lists the counters of Uplink and Downlink Quality During Radio Link Failure per TRX. Table 12-31 Counters of Uplink and Downlink Quality During Radio Link Failure per TRX Number
Counter
1
S4310D: Uplink Quality During Radio Link Failure (SDCCH)
2
S4330D: Downlink Quality During Radio Link Failure (SDCCH)
3
S4317D: Uplink Quality During Radio Link Failure (TCHF)
4
S4337D: Downlink Quality During Radio Link Failure (TCHF)
5
S4318D: Uplink Quality During Radio Link Failure (TCHH)
6
S4338D: Downlink Quality During Radio Link Failure (TCHH)
Meaning This counter measures the uplink and downlink quality on the SDCCH, TCHF, and TCHH during radio link failure.
Trigger Point The counters are measured by adding the uplink and downlink quality rank in the last valid MRs on the SDCCH, TCHF, and TCHH before radio link failure.
Formula None.
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12.11.5 Mean Uplink and Downlink Quality During Radio Link Failure per TRX Counter Table 12-32 lists the counters of Mean Uplink and Downlink Quality During Radio Link Failure per TRX. Table 12-32 Counters of Mean Quality of Uplink and Downlink During Radio Link Failure per TRX Number
Counter
1
AS4310D: Mean Uplink Quality During Radio Link Failure (SDCCH)
2
AS4330D: Mean Downlink Quality During Radio Link Failure (SDCCH)
3
AS4317D: Mean Uplink Quality During Radio Link Failure (TCHF)
4
AS4337D: Mean Downlink Quality During Radio Link Failure (SDCCH and TCHF)
5
AS4318D: Mean Uplink Quality During Radio Link Failure (TCHH)
6
AS4338D: Mean Downlink Quality During Radio Link Failure (SDCCH and TCHH)
Meaning This counter measures the mean quality of uplink and downlink on the SDCCH, TCHF, and TCHH during radio link failure.
Trigger Point None.
Formula Mean Uplink Quality During Radio Link Failure (SDCCH) = [Uplink Quality During Radio Link Failure (SDCCH)]/[Number of Radio Link Failures (SDCCH)] Mean Downlink Quality During Radio Link Failure (SDCCH) = [Downlink Quality During Radio Link Failure (SDCCH)]/[Number of Radio Link Failures (SDCCH)] Mean Uplink Quality During Radio Link Failure (TCHF) = [Uplink Quality During Radio Link Failure (TCHF)]/[Number of Radio Link Failures (TCHF)] Mean Downlink Quality During Radio Link Failure (TCHF) = [Downlink Quality During Radio Link Failure (TCHF)]/[Number of Radio Link Failures (TCHF)] Mean Uplink Quality During Radio Link Failure (TCHH) = [Uplink Quality During Radio Link Failure (TCHH)]/[ Number of Radio Link Failures (TCHH)]
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Mean Downlink Quality During Radio Link Failure (TCHH) = [Downlink Quality During Radio Link Failure (TCHH)]/[ Number of Radio Link Failures (TCHH)]
12.11.6 TA During Radio Link Failure per TRX Counter Table 12-33 lists the counters of TA During Radio Link Failure per TRX. Table 12-33 Counters of TA During Radio Link Failure per TRX Number
Counter
1
S4340D: TA During Radio Link Failure (SDCCH)
2
S4347D: TA During Radio Link Failure (TCHF)
3
S4348D: TA During Radio Link Failure (TCHH)
Meaning The counters measure the TA on the SDCCH, TCHF, and TCHH during radio link failure.
Trigger Point The counters are measured by adding the TA in the last valid MRs on the SDCCH, TCHF, and TCHH before radio link failure.
Formula None.
12.11.7 Mean TA During Radio Link Failure per TRX Counter Table 12-34 lists the counters of Mean TA During Radio Link Failure per TRX. Table 12-34 Counters of Mean TA During Radio Link Failure per TRX
12-48
Number
Counter
1
AS4340D: Mean TA During Radio Link Failure (SDCCH)
2
AS4347D: Mean TA During Radio Link Failure (TCHF)
3
AS4348D: Mean TA During Radio Link Failure (TCHH)
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Meaning The counters measure the mean TA on the SDCCH, TCHF, and TCHH during radio link failure.
Trigger Point None.
Formula Mean TA During Radio Link Failure (SDCCH) = [TA During Radio Link Failure (SDCCH)]/[ Radio Link Failures (SDCCH)] Mean TA During Radio Link Failure (TCHF) = [TA During Radio Link Failure (TCHF)]/[ Radio Link Failures (TCHF)] Mean TA During Radio Link Failure (TCHH)= [TA During Radio Link Failure (TCHH)]/[ Radio Link Failures (TCHH)]
12.11.8 Sampled Radio Link Failures per TRX Counter Table 12-35 lists the counters of Sampled Radio Link Failures per TRX. Table 12-35 Counters of Sampled Radio Link Failures per TRX Number
Counter
1
S4350D: Radio Link Failures (SDCCH)
2
S4357D: Radio Link Failures (TCHF)
3
S4358D: Radio Link Failures (TCHH)
Meaning The counters measure the total number of radio link failures on the SDCCH, TCHF, and TCHH in a GP.
Trigger Point The counters are measured when radio link failure occurs on the SDCCH, TCHF, and TCHH.
Formula None.
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12.12 Radio Link Failure Measurement based on TA per TRX Counter Radio Link Failure Measurement based on TA per TRX refers to the measurement of radio link failures based on TA. The measurement helps with network maintenance and optimization. Table 12-36 lists the counters of Radio Link Failure Measurement based on TA per TRX. Table 12-36 Counters of Radio Link Failure Measurement based on TA per TRX
12-50
Number
Counter
1
S4400B: Radio Link Failures (TA = 0)
2
S4401B: Radio Link Failures (TA = 1)
3
S4402B: Radio Link Failures (TA = 2)
4
S4403B: Radio Link Failures (TA = 3)
5
S4404B: Radio Link Failures (TA = 4)
6
S4405B: Radio Link Failures (TA = 5)
7
S4406B: Radio Link Failures (TA = 6)
8
S4407B: Radio Link Failures (TA = 7)
9
S4408B: Radio Link Failures (TA = 8)
10
S4409B: Radio Link Failures (TA = 9)
11
S4410B: Radio Link Failures (TA = 10)
12
S4411B: Radio Link Failures (TA = 11)
13
S4412B: Radio Link Failures (TA = 12)
14
S4413B: Radio Link Failures (TA = 13)
15
S4414B: Radio Link Failures (TA = 14)
16
S4415B: Radio Link Failures (TA = 15)
17
S4416B: Radio Link Failures (TA = 16)
18
S4417B: Radio Link Failures (TA = 17)
19
S4418B: Radio Link Failures (TA = 18)
20
S4419B: Radio Link Failures (TA = 19)
21
S4420B: Radio Link Failures (TA = 20)
22
S4421B: Radio Link Failures (TA = 21)
23
S4422B: Radio Link Failures (TA = 22)
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Number
Counter
24
S4423B: Radio Link Failures (TA = 23)
25
S4424B: Radio Link Failures (TA = 24)
26
S4425B: Radio Link Failures (TA = 25)
27
S4426B: Radio Link Failures (TA = 26)
28
S4427B: Radio Link Failures (TA = 27)
29
S4428B: Radio Link Failures (TA = 28)
30
S4429B: Radio Link Failures (TA = 29)
31
S4430B: Radio Link Failures (TA = 30 or 31)
32
S4432B: Radio Link Failures (TA = 32 or 33)
33
S4434B: Radio Link Failures (TA = 34 or 35)
34
S4436B: Radio Link Failures (TA = 36 or 37)
35
S4438B: Radio Link Failures (TA = 38 or 39)
36
S4440B: Radio Link Failures (TA = 40 to 44)
37
S4445B: Radio Link Failures (TA = 45 to 49)
38
S4450B: Radio Link Failures (TA = 50 to 54)
39
S4455B: Radio Link Failures (TA = 55 to 63)
40
S4463B: Radio Link Failures (TA greater than 63)
12 MR Measurement
Meaning The counters measure the number of MRs based on the TA during radio link failure.
Trigger Point In a GP, the counters are measured based on the TA in the last valid MR during radio link failure.
Formula None.
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12.13 RQI Measurement based on TA per TRX 12.13.1 Overview of RQI Measurement based on TA per TRX Radio Quality Indication (RQI) is the reference for intra cell handovers. The BSC can perform intra cell handover of AMR calls only when the MR contains the RQI. RQI Measurement based on TA per TRX refers to the measurement of the RQI based on TA. The measurement helps with network maintenance and optimization. Table 12-37 lists the counters of RQI Measurement based on TA per TRX. Table 12-37 Counters of RQI Measurement based on TA per TRX Counter
Section
Sampled RQI based on TA per TRX
12.13.2
Analyzed RQI based on TA per TRX
12.13.3
12.13.2 Sampled RQI based on TA per TRX Counter Table 12-38 lists the counters of Sampled RQI based on TA per TRX. Table 12-38 Counters of Sampled RQI based on TA per TRX
12-52
Number
Counter
1
S4400D: RQI (TA = 0)
2
S4401D: RQI (TA = 1)
3
S4402D: RQI (TA = 2)
4
S4403D: RQI (TA = 3)
5
S4404D: RQI (TA = 4)
6
S4405D: RQI (TA = 5)
7
S4406D: RQI (TA = 6)
8
S4407D: RQI (TA = 7)
9
S4408D: RQI (TA = 8)
10
S4409D: RQI (TA = 9)
11
S4410D: RQI (TA = 10)
12
S4411D: RQI (TA = 11)
13
S4412D: RQI (TA = 12)
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Number
Counter
14
S4413D: RQI (TA = 13)
15
S4414D: RQI (TA = 14)
16
S4415D: RQI (TA = 15)
17
S4416D: RQI (TA = 16)
18
S4417D: RQI (TA = 17)
19
S4418D: RQI (TA = 18)
20
S4419D: RQI (TA = 19)
21
S4420D: RQI (TA = 20)
22
S4421D: RQI (TA = 21)
23
S4422D: RQI (TA = 22)
24
S4423D: RQI (TA = 23)
25
S4424D: RQI (TA = 24)
26
S4425D: RQI (TA = 25)
27
S4426D: RQI (TA = 26)
28
S4427D: RQI (TA = 27)
29
S4428D: RQI (TA = 28)
30
S4429D: RQI (TA = 29)
31
S4430D: RQI (TA = 30 or 31)
32
S4432D: RQI (TA = 32 or 33)
33
S4434D: RQI (TA = 34 or 35)
34
S4436D: RQI (TA = 36 or 37)
35
S4438D: RQI (TA = 38 or 39)
36
S4440D: RQI (TA = 40 to 44)
37
S4445D: RQI (TA = 45 to 49)
38
S4450D: RQI (TA = 50 to 54)
39
S4455D: RQI (TA = 55 to 63)
40
S4463D: RQI (TA greater than 63)
41
S4400C: MRs with RQI (TA = 0)
42
S4401C: MRs with RQI (TA = 1)
43
S4402C: MRs with RQI (TA = 2)
44
S4403C: MRs with RQI (TA = 3)
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12-54
Number
Counter
45
S4404C: MRs with RQI (TA = 4)
46
S4405C: MRs with RQI (TA = 5)
47
S4406C: MRs with RQI (TA = 6)
48
S4407C: MRs with RQI (TA = 7)
49
S4408C: MRs with RQI (TA = 8)
50
S4409C: MRs with RQI (TA = 9)
51
S4410C: MRs with RQI (TA = 10)
52
S4411C: MRs with RQI (TA = 11)
53
S4412C: MRs with RQI (TA = 12)
54
S4413C: MRs with RQI (TA = 13)
55
S4414C: MRs with RQI (TA = 14)
56
S4415C: MRs with RQI (TA = 15)
57
S4416C: MRs with RQI (TA = 16)
58
S4417C: MRs with RQI (TA = 17)
59
S4418C: MRs with RQI (TA = 18)
60
S4419C: MRs with RQI (TA = 19)
61
S4420C: MRs with RQI (TA = 20)
62
S4421C: MRs with RQI (TA = 21)
63
S4422C: MRs with RQI (TA = 22)
64
S4423C: MRs with RQI (TA = 23)
65
S4424C: MRs with RQI (TA = 24)
66
S4425C: MRs with RQI (TA = 25)
67
S4426C: MRs with RQI (TA = 26)
68
S4427C: MRs with RQI (TA = 27)
69
S4428C: MRs with RQI (TA = 28)
70
S4429C: MRs with RQI (TA = 29)
71
S4430C: MRs with RQI (TA = 30 or 31)
72
S4432C: MRs with RQI (TA = 32 or 33)
73
S4434C: MRs with RQI (TA = 34 or 35)
74
S4436C: MRs with RQI (TA = 36 or 37)
75
S4438C: MRs with RQI (TA = 38 or 39)
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Number
Counter
76
S4440C: MRs with RQI (TA = 40 to 44)
77
S4445C: MRs with RQI (TA = 45 to 49)
78
S4450C: MRs with RQI (TA = 50 to 54)
79
S4455C: MRs with RQI (TA = 55 to 63)
80
S4463C: MRs with RQI (TA greater than 63)
12 MR Measurement
Meaning The MS reports MRs containing RQIs periodically during AMR calls. The counters measure the RQI and the number of MRs containing RQI.
Trigger Point The counters are measured by adding all the RQIs in the MRs when TA is x. In a GP, each counter increases by 1 based on the TA in the MR that contains the RQI.
X is a value or a value range.
Formula None.
12.13.3 Analyzed RQI based on TA per TRX Counter Table 12-39 lists the counters of Analyzed RQI based on TA per TRX. Table 12-39 Counters of Analyzed RQI based on TA per TRX Number
Counter
1
AS4400D: Mean RQI (TA = 0)
2
AS4401D: Mean RQI (TA = 1)
3
AS4402D: Mean RQI (TA = 2)
4
AS4403D: Mean RQI (TA = 3)
5
AS4404D: Mean RQI (TA = 4)
6
AS4405D: Mean RQI (TA = 5)
7
AS4406D: Mean RQI (TA = 6)
8
AS4407D: Mean RQI (TA = 7)
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Number
Counter
9
AS4408D: Mean RQI (TA = 8)
10
AS4409D: Mean RQI (TA = 9)
11
AS4410D: Mean RQI (TA = 10)
12
AS4411D: Mean RQI (TA = 11)
13
AS4412D: Mean RQI (TA = 12)
14
AS4413D: Mean RQI (TA = 13)
15
AS4414D: Mean RQI (TA = 14)
16
AS4415D: Mean RQI (TA = 15)
17
AS4416D: Mean RQI (TA = 16)
18
AS4417D: Mean RQI (TA = 17)
19
AS4418D: Mean RQI (TA = 18)
20
AS4419D: Mean RQI (TA = 19)
21
AS4420D: Mean RQI (TA = 20)
22
AS4421D: Mean RQI (TA = 21)
23
AS4422D: Mean RQI (TA = 22)
24
AS4423D: Mean RQI (TA = 23)
25
AS4424D: Mean RQI (TA = 24)
26
AS4425D: Mean RQI (TA = 25)
27
AS4426D: Mean RQI (TA = 26)
28
AS4427D: Mean RQI (TA = 27)
29
AS4428D: Mean RQI (TA = 28)
30
AS4429D: Mean RQI (TA = 29)
31
AS4430D: Mean RQI (TA = 30 or 31)
32
AS4432D: Mean RQI (TA = 32 or 33)
33
AS4434D: Mean RQI (TA = 34 or 35)
34
AS4436D: Mean RQI (TA = 36 or 37)
35
AS4438D: Mean RQI (TA = 38 or 39)
36
AS4440D: Mean RQI (TA = 40 to 44)
37
AS4445D: Mean RQI (TA = 45 to 49)
38
AS4450D: Mean RQI (TA = 50 to 54)
39
AS4455D: Mean RQI (TA = 55 to 63)
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Counter
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AS4463D: Mean RQI (TA greater than 63)
12 MR Measurement
Meaning The counters measure the mean RQI in the MRs based on TA.
Trigger Point None.
Formula Mean RQI (TA =X) = [RQI (TA = X)]/[ MRs with RQI (TA = X)].
X is a value or a value range.
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13
Channel Measurement
About This Chapter The following table lists the sections of this chapter. Section
Describes
13.1 Overview of Channel Measurement
Introduces the functions and measurement units of Channel Measurement.
13.2 Channel Configuration Measurement per Cell
Describes the functions of the measurement unit and the counters in this unit.
13.3 Channel Conversion Measurement per Cell
Describes the functions of the measurement unit and the counters in this unit.
13.4 Channel Busy Duration Measurement per Cell
Describes the functions of the measurement unit and the counters in this unit.
13.5 Measurement of Maximum Busy Channels per Cell
Describes the functions of the measurement unit and the counters in this unit.
13.6 Channel State Measurement per Cell
Describes the functions of the measurement unit and the counters in this unit.
13.7 Channel Assignment Request Measurement per Cell
Describes the functions of the measurement unit and the counters in this unit.
13.8 Channel Assignment Success Measurement per TRX
Describes the functions of the measurement unit and the counters in this unit.
13.9 Channel Assignment Failure Measurement per Cell
Describes the functions of the measurement unit and the counters in this unit.
13.10 Channel Assignment Concentric Cell Measurement per Cell
Describes the functions of the measurement unit and the counters in this unit.
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Section
Describes
13.11 Channel Assignment Queue Measurement per Cell
Describes the functions of the measurement unit and the counters in this unit.
13.12 Channel Assignment GPRS Measurement per Cell
Describes the functions of the measurement unit and the counters in this unit.
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13.1 Overview of Channel Measurement Channel Measurement is used to measure the counters related to the channels. Table 13-1 lists the measurement units of Channel Measurement. Table 13-1 Measurement units of Channel Measurement Measurement Unit
Section
Channel Configuration Measurement per Cell
13.2
Channel Conversion Measurement per Cell
13.3
Channel Busy Duration Measurement per Cell
13.4
Measurement of Maximum Busy Channels per Cell
13.5
Channel State Measurement per Cell
13.6
Channel Assignment Request Measurement per Cell
13.7
Channel Assignment Success Measurement per TRX
13.8
Channel Assignment Failure Measurement per Cell
13.9
Channel Assignment Concentric Cell Measurement per Cell
13.10
Channel Assignment Queue Measurement per Cell
13.11
Channel Assignment GPRS Measurement per Cell
13.12
13.2 Channel Configuration Measurement per Cell 13.2.1 Overview During operation, the BSC dynamically adjusts the resources such as TCHs, SDCCHs, and PDCHs for optimal use of channels. At the same time, the system periodically provides the statistics when the channel is busy, idle, or blocked. These data helps to obtain the information about the system operation and about the service distribution. Therefore, the BSC samples the information about the channel assignment every five seconds. The number of the configured channels and the number of available channels can be obtained during the trigger of a sampling.
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Table 13-2 lists the classification of the counters in the Channel Configuration Measurement per Cell measurement unit. Table 13-2 Classification of the counters in the Channel Configuration Measurement per Cell measurement unit Counter Classification
Section
Sampled Measurement of Initially Configured Channels
13.2.2
Analyzed Measurement of Dynamically Configured Channels
13.2.3
Analyzed Number of Available Channels
13.2.4
SDCCH Availability
13.2.5
TCH Availability
13.2.6
Analyzed Measurement of Initially Configured Channels
13.2.7
13.2.2 Sampled Measurement of Initially Configured Channels Counter Table 13-3 lists the counters in the Sampled Measurement of Initially Configured Channels measurement unit. Table 13-3 Counters in the Sampled Measurement of Initially Configured Channels measurement unit
13-4
Number
Counter
1
R3000A: Number of Initially Configured Channels (SDCCH) (900/850 Cell)
2
R3000B: Number of Initially Configured Channels (SDCCH) (1800/1900 Cell)
3
R3007A: Number of Initially Configured Channels (TCHF) (900/850 Cell)
4
R3007B: Number of Initially Configured Channels (TCHF) (1800/1900 Cell)
5
R3008A: Number of Initially Configured Channels (TCHH) (900/850 Cell)
6
R3008B: Number of Initially Configured Channels (TCHH) (1800/1900 Cell)
7
R3001A: Number of Initially Configured Channels (Static PDCH) (900/850 Cell)
8
R3001B: Number of Initially Configured Channels (Static PDCH) (1800/1900 Cell)
9
R3002A: Number of Initially Configured Channels (Dynamic PDCH) (900/850 Cell)
10
R3002B: Number of Initially Configured Channels (Dynamic PDCH) (1800/1900 Cell)
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Number
Counter
11
R3005A: Number of Initially Configured Channels (Static EDGE) (900/850 Cell)
12
R3005B: Number of Initially Configured Channels (Static EDGE) (1800/1900 Cell)
13
R3006A: Number of Initially Configured Channels (Dynamic EDGE) (900/850 Cell)
14
R3006B: Number of Initially Configured Channels (Dynamic EDGE) (1800/1900 Cell)
15
R3009A: Number of Initially Configured Channels (CBCH) (900/850 Cell)
16
R3009B: Number of Initially Configured Channels (CBCH) (1800/1900 Cell)
Meaning The R3000A: Number of Initially Configured Channels (SDCCH) (900/850 Cell) counter is used to measure the number of the configured SDCCHs (excluding the SDCCHs obtained from the dynamic adjustment of the TCHFs) in the 900/850M cell within the BSC at each sampling point. The R3000B: Number of Initially Configured Channels (SDCCH) (1800/1900 Cell) counter is used to measure the number of the configured SDCCHs (excluding the SDCCHs obtained from the dynamic adjustment of the TCHFs) in the DCS1800/PCS1900M cell within the BSC at each sampling point. The R3007A: Number of Initially Configured Channels (TCHF) (900/850 Cell) counter is used to measure the number of the configured TCHFs (excluding the TCHFs obtained from the dynamic adjustment of the dynamic PDCHs and from the dynamic adjustment of the TCHHs) in the 900/850M cell within the BSC at each sampling point. The R3007B: Number of Initially Configured Channels (TCHF) (1800/1900 Cell) counter is used to measure the number of the configured TCHFs (excluding the TCHFs obtained from the dynamic adjustment of the dynamic PDCHs and from the dynamic adjustment of the TCHHs) in the DCS1800/PCS1900M cell within the BSC at each sampling point. The R3008A: Number of Initially Configured Channels (TCHH) (900/850 Cell) counter is used to measure the number of the configured TCHHs (excluding the TCHHs obtained from the dynamic adjustment of the TCHFs) in the 900/850M cell within the BSC at each sampling point. The R3008B: Number of Initially Configured Channels (TCHH) (1800/1900 Cell) counter is used to measure the number of the configured TCHHs (excluding the TCHHs obtained from the dynamic adjustment of the TCHFs) in the DCS1800/PCS1900M cell within the BSC at each sampling point. The R3001A: Number of Initially Configured Channels (Static PDCH) (900/850 Cell) counter is used to measure the number of the static PDCHs configured in the 900/850M cell within the BSC at each sampling point.
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The R3001B: Number of Initially Configured Channels (Static PDCH) (1800/1900 Cell) counter is used to measure the number of the static PDCHs configured in the DCS1800/PCS1900M cell within the BSC at each sampling point. The R3002A: Number of Initially Configured Channels (Dynamic PDCH) (900/850 Cell) counter is used to measure the number of the dynamic PDCHs (including the dynamic PDCHs that have been dynamically adjusted to TCHFs) configured in the 900/850M cell within the BSC at each sampling point. The R3002B: Number of Initially Configured Channels (Dynamic PDCH) (1800/1900 Cell) counter is used to measure the number of the dynamic PDCHs (including the dynamic PDCHs that have been dynamically adjusted to TCHFs) configured in the DCS1800/PCS1900M cell within the BSC at each sampling point. The R3005A: Number of Initially Configured Channels (Static EDGE) (900/850 Cell) counter is used to measure the number of the static EDGE PDCHs configured in the 900/850M cell within the BSC at each sampling point. The R3005B: Number of Initially Configured Channels (Static EDGE) (1800/1900 Cell) counter is used to measure the number of the static EDGE PDCHs configured in the DCS1800/PCS1900M cell within the BSC at each sampling point. The R3006A: Number of Initially Configured Channels (Dynamic EDGE) (900/850 Cell) counter is used to measure the number of the dynamic EDGE PDCHs (including the dynamic EDGE PDCHs that have been dynamically adjusted to TCHFs) configured in the 900/850M cell within the BSC at each sampling point. The R3006B: Number of Initially Configured Channels (Dynamic EDGE) (1800/1900 Cell) counter is used to measure the number of the dynamic EDGE PDCHs (including the dynamic EDGE PDCHs that have been dynamically adjusted to TCHFs) configured in the DCS1800/PCS1900M cell within the BSC at each sampling point. The cell broadcast channel (CBCH) forwards the cell broadcast messages from the cell broadcast center (CBC) to the MS. For the areas where the cell broadcast is available, you configure the CBCHs through the following channel portfolios in the radio channel configuration table: BCCH+CBCH or SDCCH+CBCH. The R3009A: Number of Initially Configured Channels (CBCH) (900/850 Cell) counter is used to measure the number of the configured CBCHs in the 900/850M cell within the BSC at each sampling point. The R3009B: Number of Initially Configured Channels (CBCH) (1800/1900 Cell) counter is used to measure the number of the configured CBCHs in the DCS1800/PCS1900M cell within the BSC at each sampling point.
Trigger Point The previous counters are measured at each sampling point.
Formula None.
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13.2.3 Analyzed Measurement of Dynamically Configured Channels Counter Table 13-4 lists the counters in the Analyzed Measurement of Dynamically Configured Channels measurement unit. Table 13-4 Counters in the Analyzed Measurement of Dynamically Configured Channels measurement unit Number
Counter
1
AR3010A: Mean Number of Dynamically Configured Channels (SDCCH) (900/850 Cell)
2
AR3010B: Mean Number of Dynamically Configured Channels (SDCCH) (1800/1900 Cell)
3
AR3017A: Mean Number of Dynamically Configured Channels (TCHF) (900/850 Cell)
4
AR3017B: Mean Number of Dynamically Configured Channels (TCHF) (1800/1900 Cell)
5
AR3018A: Mean Number of Dynamically Configured Channels (TCHH) (900/850 Cell)
6
AR3018B: Mean Number of Dynamically Configured Channels (TCHH) (1800/1900 Cell)
7
AR3011A: Mean Number of Dynamically Configured Channels (PDCH) (900/850 Cell)
8
AR3011B: Mean Number of Dynamically Configured Channels (PDCH) (1800/1900 Cell)
9
AR3015A: Mean Number of Dynamically Configured Channels (EDGE) (900/850 Cell)
10
AR3015B: Mean Number of Dynamically Configured Channels (EDGE) (1800/1900 Cell)
11
CR3010: Mean Number of Dynamically Configured Channels (SDCCH)
12
CR301B: Mean Number of Dynamically Configured Channels (TCH)
13
CR3017: Mean Number of Dynamically Configured Channels (TCHF)
14
CR3018: Mean Number of Dynamically Configured Channels (TCHH)
15
CR3011: Mean Number of Dynamically Configured Channels (PDCH)
16
CR3015: Mean Number of Dynamically Configured Channels (EDGE)
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Meaning The AR3010A: Mean Number of Dynamically Configured Channels (SDCCH) (900/850 Cell) counter is used to measure the mean number of the configured SDCCHs (including the SDCCHs obtained from the dynamic adjustment of the TCHFs) in a 900/850M cell under the BSC in a granularity period. The AR3010B: Mean Number of Dynamically Configured Channels (SDCCH) (1800/1900 Cell) counter is used to measure the mean number of the configured SDCCHs (including the SDCCHs obtained from the dynamic adjustment of the TCHFs) in a DCS1800/PCS1900M cell under the BSC in a granularity period. The AR3017A: Mean Number of Dynamically Configured Channels (TCHF) (900/850 Cell) counter is used to measure the mean number of the configured TCHFs (including the TCHFs obtained from the dynamic adjustment of the dynamic PDCHs and the TCHFs obtained from the dynamic adjustment of the TCHHs) in a 900/850M cell under the BSC in a granularity period. The AR3017B: Mean Number of Dynamically Configured Channels (TCHF) (1800/1900 Cell) counter is used to measure the mean number of the configured TCHFs (including the TCHFs obtained from the dynamic adjustment of the dynamic PDCHs and the TCHFs obtained from the dynamic adjustment of the TCHHs) in a DCS1800/PCS1900M cell under the BSC in a granularity period. The AR3018A: Mean Number of Dynamically Configured Channels (TCHH) (900/850 Cell) counter is used to measure the mean number of the configured TCHHs (including the TCHHs obtained from the dynamic adjustment of the TCHFs) in a 900/850M cell under the BSC in a granularity period. The AR3018B: Mean Number of Dynamically Configured Channels (TCHH) (1800/1900 Cell) counter is used to measure the mean number of the configured TCHHs (including the TCHHs obtained from the dynamic adjustment of the TCHFs) in a DCS1800/PCS1900M cell under the BSC in a granularity period. The AR3011A: Mean Number of Dynamically Configured Channels (PDCH) (900/850 Cell) counter is used to measure the mean number of the configured PDCHs (including the PDCHs obtained from the dynamic adjustment of the dynamic PDCHs) in a 900/850M cell under the BSC in a granularity period. The AR3011B: Mean Number of Dynamically Configured Channels (PDCH) (1800/1900 Cell) counter is used to measure the mean number of the configured PDCHs (including the PDCHs obtained from the dynamic adjustment of the dynamic PDCHs) in a DCS1800/PCS1900M cell under the BSC in a granularity period. The AR3015A: Mean Number of Dynamically Configured Channels (EDGE) (900/850 Cell) counter is used to measure the mean number of the EDGE PDCHs (including the EDGE PDCHs obtained from the dynamic adjustment of the dynamic EDGE PDCHs) configured in a 900/850M cell under the BSC in a granularity period. The AR3015B: Mean Number of Dynamically Configured Channels (EDGE) (1800/1900 Cell) counter is used to measure the mean number of the EDGE PDCHs (including the EDGE PDCHs obtained from the dynamic adjustment of the dynamic EDGE PDCHs) configured in a DCS1800/PCS1900M cell under the BSC in a granularity period. The CR3010: Mean Number of Dynamically Configured Channels (SDCCH) counter is used to measure the mean number of the configured SDCCHs (including the SDCCHs obtained from the dynamic adjustment of the TCHFs) in the cells of all frequency bands under the BSC in real time.
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The CR301B: Mean Number of Dynamically Configured Channels (TCH) counter is used to measure the mean number of the configured TCHs (including the TCHs obtained from the dynamic adjustment of the dynamic PDCHs) in the cells of all frequency bands under the BSC in real time. The CR3017: Mean Number of Dynamically Configured Channels (TCHF) counter is used to measure the mean number of the configured TCHFs (including the TCHFs obtained from the dynamic adjustment of the dynamic PDCHs and the TCHFs obtained from the dynamic adjustment of the TCHHs) in the cells of all frequency bands under the BSC in real time. The CR3018: Mean Number of Dynamically Configured Channels (TCHH) counter is used to measure the mean number of the configured TCHHs (including the TCHHs obtained from the dynamic adjustment of the TCHFs) in the cells of all frequency bands under the BSC in real time. The CR3011: Mean Number of Dynamically Configured Channels (PDCH) counter is used to measure the mean number of the configured PDCHs (including the PDCHs obtained from the dynamic adjustment of the dynamic PDCHs) in the cells of all frequency bands under the BSC in real time. The CR3015: Mean Number of Dynamically Configured Channels (EDGE) counter is used to measure the mean number of the configured EDGE PDCHs (including the EDGE PDCHs obtained from the dynamic adjustment of the dynamic EDGE PDCHs) in the cells of all frequency bands under the BSC in real time.
Trigger Point None.
Formula Mean Number of Dynamically Configured Channels (SDCCH) (900/850 Cell) = [Number of Dynamically Configured Channels (SDCCH) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (SDCCH) (1800/1900 Cell) = [Number of Dynamically Configured Channels (SDCCH) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (TCHF) (900/850 Cell) = [Number of Dynamically Configured Channels (TCHF) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (TCHF) (1800/1900 Cell) = [Number of Dynamically Configured Channels (TCHF) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
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Mean Number of Dynamically Configured Channels (TCHH) (900/850 Cell) = [Number of Dynamically Configured Channels (TCHH) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (TCHH) (1800/1900 Cell) = [Number of Dynamically Configured Channels (TCHH) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (PDCH) (900/850 Cell) = [Number of Dynamically Configured Channels (PDCH) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (PDCH) (1800/1900 Cell) = [Number of Dynamically Configured Channels (PDCH) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (EDGE) (900/850 Cell) = [Number of Dynamically Configured Channels (EDGE) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (EDGE) (1800/1900 Cell) = [Number of Dynamically Configured Channels (EDGE) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (SDCCH) = [Mean Number of Dynamically Configured Channels (SDCCH) (900/850 Cell)] + [Mean Number of Dynamically Configured Channels (SDCCH) (1800/1900 Cell)]
Mean Number of Available Channels (TCH) = [Mean Number of Available Channels (TCHF)] + [Mean Number of Available Channels (TCHH)]
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Mean Number of Available Channels (TCHF) = [Mean Number of Available Channels (TCHF) (900/850 Cell)] + [Mean Number of Available Channels (TCHF) (1800/1900 Cell)]
Mean Number of Available Channels (TCHH) = [Mean Number of Available Channels (TCHH) (900/850 Cell)] + [Mean Number of Available Channels (TCHH) (1800/1900 Cell)]
Mean Number of Available Channels (PDCH) = [Mean Number of Available Channels (PDCH) (900/850 Cell)] + [Mean Number of Available Channels (PDCH) (1800/1900 Cell)]
Mean Number of Available Channels (EDGE) = [Mean Number of Available Channels (EDGE) (900/850 Cell)] + [Mean Number of Available Channels (EDGE) (1800/1900 Cell)]
Mean Number of Dynamically Configured Channels (SDCCH) (900/850 Cell) = [Number of Dynamically Configured Channels (SDCCH) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (SDCCH) (1800/1900 Cell) = [Number of Dynamically Configured Channels (SDCCH) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (TCHF) (900/850 Cell) = [Number of Dynamically Configured Channels (TCHF) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (TCHF) (1800/1900 Cell) = [Number of Dynamically Configured Channels (TCHF) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (TCHH) (900/850 Cell) =
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[Number of Dynamically Configured Channels (TCHH) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (TCHH) (1800/1900 Cell) = [Number of Dynamically Configured Channels (TCHH) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (PDCH) (900/850 Cell) = [Number of Dynamically Configured Channels (PDCH) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (PDCH) (1800/1900 Cell) = [Number of Dynamically Configured Channels (PDCH) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (EDGE) (900/850 Cell) = [Number of Dynamically Configured Channels (EDGE) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Dynamically Configured Channels (EDGE) (1800/1900 Cell) = [Number of Dynamically Configured Channels (EDGE) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
13.2.4 Analyzed Measurement of Available Channels Counter Table 13-5 lists the counters in the Analyzed Measurement of Available Channels measurement unit. Table 13-5 Counters in the Analyzed Measurement of Available Channels measurement unit
13-12
Number
Counter
1
AR3020A: Mean Number of Available Channels (SDCCH) (900/850 Cell)
2
AR3020B: Mean Number of Available Channels (SDCCH) (1800/1900 Cell)
3
AR3027A: Mean Number of Available Channels (TCHF) (900/850 Cell)
4
AR3027B: Mean Number of Available Channels (TCHF) (1800/1900 Cell)
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Number
Counter
5
AR3028A: Mean Number of Available Channels (TCHH) (900/850 Cell)
6
AR3028B: Mean Number of Available Channels (TCHH) (1800/1900 Cell)
7
AR3021A: Mean Number of Available Channels (PDCH) (900/850 Cell)
8
AR3021B: Mean Number of Available Channels (PDCH) (1800/1900 Cell)
9
AR3025A: Mean Number of Available Channels (EDGE) (900/850 Cell)
10
AR3025B: Mean Number of Available Channels (EDGE) (1800/1900 Cell)
11
AR3023A: Mean Number of Available Channels (TCHs Converted from Dynamic PDCHs) (900/850 Cell)
12
AR3023B: Mean Number of Available Channels (TCHs Converted from Dynamic PDCHs) (1800/1900 Cell)
13
AR3024A: Mean Number of Available Channels (PDCHs Converted from Dynamic PDCHs) (900/850 Cell)
14
AR3024B: Mean Number of Available Channels (PDCHs Converted from Dynamic PDCHs) (1800/1900 Cell)
15
CR3020: Mean Number of Available Channels (SDCCH)
16
CR302B: Mean Number of Available Channels (TCH)
17
CR3027: Mean Number of Available Channels (TCHF)
18
CR3028: Mean Number of Available Channels (TCHH)
19
CR3021: Mean Number of Available Channels (PDCH)
20
CR3025: Mean Number of Available Channels (EDGE)
21
CR3023: Mean Number of Available Channels (TCHs Converted from Dynamic PDCHs)
22
CR3024: Mean Number of Available Channels (PDCHs Converted from Dynamic PDCHs)
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Meaning The AR3020A: Mean Number of Available Channels (SDCCH) (900/850 Cell) counter is used to measure the mean number of channels in a cell on the 900/850M band under the BSC in a granularity period. The channels must meet the following requirements: z
The channel type is SDCCH8, SDCCH+CBCH, BCCH+BCCH, or BCCH+CBCH.
z
The channels are available.
The AR3020B: Mean Number of Available Channels (SDCCH) (1800/1900 Cell) counter is used to measure the mean number of channels in a cell on the DCS1800/PCS1900M band under the BSC in a granularity period. The channels must meet the following requirements: z
The channel type is SDCCH8, SDCCH+CBCH, BCCH+BCCH, or BCCH+CBCH.
z
The channels are available.
The AR3027A: Mean Number of Available Channels (TCHF) (900/850 Cell) counter is used to measure the mean number of available TCHFs in a 900/850M cell under the BSC in a granularity period. The AR3027B: Mean Number of Available Channels (TCHF) (1800/1900 Cell) counter is used to measure the mean number of available TCHFs in a DCS1800/PCS1900M cell under the BSC in a granularity period. The AR3028A: Mean Number of Available Channels (TCHH) (900/850 Cell) counter is used to measure the mean number of available TCHHs in a 900/850M cell under the BSC in a granularity period. The AR3028B: Mean Number of Available Channels (TCHH) (1800/1900 Cell) counter is used to measure the mean number of available TCHHs in a DCS1800/PCS1900M cell under the BSC in a granularity period. The AR3021A: Mean Number of Available Channels (PDCH) (900/850 Cell) counter is used to measure the mean number of channels in a cell on the 900/850M band under the BSC in a granularity period. The channels must meet the following requirements: z
The channel type is PDTCH, PBCCH+ PDTCH, or PCCCH+ PDTCH.
z
The TRX carrying the channels is EDGE-capable.
z
The channels are available.
The AR3021B: Mean Number of Available Channels (PDCH) (1800/1900 Cell) counter is used to measure the mean number of channels in a cell on the DCS1800/PCS1900M band under the BSC in a granularity period. The channels must meet the following requirements: z
The channel type is PDTCH, PBCCH+ PDTCH, or PCCCH+ PDTCH.
z
The TRX carrying the channels is EDGE-capable.
z
The channels are available.
The AR3025A: Mean Number of Available Channels (EDGE) (900/850 Cell) counter is used to measure the mean number of channels in a cell on the 900/850M band under the BSC in a granularity period. The channels must meet the following requirements:
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z
The channel type is PDTCH, PBCCH+ PDTCH, or PCCCH+ PDTCH.
z
The TRX carrying the channels is EDGE-capable.
z
The channels are available.
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The AR3025B: Mean Number of Available Channels (EDGE) (1800/1900 Cell) counter is used to measure the mean number of channels in a cell on the DCS1800/PCS1900M band under the BSC in a granularity period. The channels must meet the following requirements: z
The channel type is PDTCH, PBCCH+ PDTCH, or PCCCH+ PDTCH.
z
The TRX carrying the channels is EDGE-capable.
z
The channels are available.
The AR3023A: Mean Number of Available Channels (TCHs Converted from Dynamic PDCHs) (900/850 Cell) counter is used to measure the mean number of available TCHFs converted from dynamic PDCHs in a 900/850M cell under the BSC in a granularity period. The AR3023B: Mean Number of Available Channels (TCHs Converted from Dynamic PDCHs) (1800/1900 Cell) counter is used to measure the mean number of available TCHFs converted from dynamic PDCHs in a DCS1800/PCS1900M cell under the BSC in a granularity period. The AR3024A: Mean Number of Available Channels (PDCHs Converted from Dynamic PDCHs) (900/850 Cell) counter is used to measure the mean number of channels in a cell on the 900/850M band under the BSC in a granularity period. The channels must meet the following requirements: z
The channel type is PDTCH.
z
The configuration type is dynamic PDCH.
z
The channels are available.
The AR3024B: Mean Number of Available Channels (PDCHs Converted from Dynamic PDCHs) (1800/1900 Cell) counter is used to measure the mean number of channels in a cell on the DCS1800/PCS1900M band under the BSC in a granularity period. The channels must meet the following requirements: z
The channel type is PDTCH.
z
The configuration type is dynamic PDCH.
z
The channels are available.
The CR3020: Number of Available Channels (SDCCH) counter is used to measure the number of channels in the cells on all the frequency bands under the BSC in a granularity period in real time. The channels must meet the following requirements: z
The channel type is SDCCH8, SDCCH+CBCH, BCCH+BCCH, or BCCH+CBCH.
z
The channels are available.
The CR3027: Number of Available Channels (TCHF) counter is used to measure the number of the available TCHFs in the cells of all frequency bands under the BSC in real time. The CR3028: Number of Available Channels (TCHH) counter is used to measure the number of the available TCHHs in the cells of all frequency bands under the BSC in real time. The CR3021: Number of Available Channels (PDCH) counter is used to measure the number of channels in the cells on all the frequency bands under the BSC in a granularity period in real time. The channels must meet the following requirements: z
The channel type is PDTCH, PBCCH+PDTCH, or PCCCH+PDTCH.
z
The channels are available.
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The CR3025: Number of Available Channels (EDGE) counter is used to measure the number of channels in the cells on all frequency bands under the BSC in real time. The channels must meet the following requirements: z
The channel type is PDTCH, PBCCH+ PDTCH, or PCCCH+ PDTCH.
z
The TRX carrying the channels is EDGE-capable.
z
The channels are available.
The CR3023: Number of Available Channels (TCHs Converted from Dynamic PDCHs) counter is used to measure the number of the available TCHFs converted from dynamic PDCHs in the cells of all frequency bands under the BSC in real time. The CR3024: Number of Available Channels (PDCHs Converted from Dynamic PDCHs) counter is used to measure the number of channels in the cells on all frequency bands under the BSC in real time. The channels must meet the following requirements: z
The channel type is PDTCH.
z
The configuration type is dynamic PDCH.
z
The channels are available.
Trigger Point None.
Formula Mean Number of Available Channels (SDCCH) (900/850 Cell) = [Number of Available Channels (SDCCH) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Available Channels (SDCCH) (1800/1900 Cell) = [Number of Available Channels (SDCCH) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Available Channels (TCHF) (900/850 Cell) = [Number of Available Channels (TCHF) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Available Channels (TCHF) (1800/1900 Cell) = [Number of Available Channels (TCHF) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Available Channels (TCHH) (900/850 Cell) = [Number of Available Channels (TCHH) (900/850 Cell)]/
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[Sampled Number of Configured Channels]
Mean Number of Available Channels (TCHH) (1800/1900 Cell) = [Number of Available Channels (TCHH) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Available Channels (PDCH) (900/850 Cell) = [Number of Available Channels (PDCH) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Available Channels (PDCH) (1800/1900 Cell) = [Number of Available Channels (PDCH) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Available Channels (EDGE) (900/850 Cell) = [Number of Available Channels (EDGE) (900/850 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Available Channels (EDGE) (1800/1900 Cell) = [Number of Available Channels (EDGE) (1800/1900 Cell)]/ [Sampled Number of Configured Channels]
Mean Number of Available Channels (TCHs Converted from Dynamic PDCHs) (900/850 Cell) = [Number of Available Channels (TCHs Converted from Dynamic PDCHs) (900/850 Cell)]/[Sampled Number of Configured Channels]
Mean Number of Available Channels (TCHs Converted from Dynamic PDCHs) (1800/1900 Cell) = [Number of Available Channels (TCHs Converted from Dynamic PDCHs) (1800/1900 Cell)]/[Sampled Number of Configured Channels]
Mean Number of Available Channels (PDCHs Converted from Dynamic PDCHs) (900/850 Cell) = [Number of Available Channels (PDCHs Converted from Dynamic PDCHs) (900/850 Cell)]/[Sampled Number of Configured Channels]
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Mean Number of Available Channels (PDCHs Converted from Dynamic PDCHs) (1800/1900 Cell) = [Number of Available Channels (PDCHs Converted from Dynamic PDCHs) (1800/1900 Cell)]/[Sampled Number of Configured Channels]
Mean Number of Available Channels (SDCCH) = [Mean Number of Available Channels (SDCCH) (900/850 Cell)] + [Mean Number of Available Channels (SDCCH) (1800/1900 Cell)]
Mean Number of Available Channels (TCH) = [Mean Number of Available Channels (TCHF)] + [Mean Number of Available Channels (TCHH)]
Mean Number of Available Channels (TCHF) = [Mean Number of Available Channels (TCHF) (900/850 Cell)] + [Mean Number of Available Channels (TCHF) (1800/1900 Cell)]
Mean Number of Available Channels (TCHH) = [Mean Number of Available Channels (TCHH) (900/850 Cell)] + [Mean Number of Available Channels (TCHH) (1800/1900 Cell)]
Mean Number of Available Channels (PDCH) = [Mean Number of Available Channels (PDCH) (900/850 Cell)] + [Mean Number of Available Channels (PDCH) (1800/1900 Cell)]
Mean Number of Available Channels (EDGE) = [Mean Number of Available Channels (EDGE) (900/850 Cell)] + [Mean Number of Available Channels (EDGE) (1800/1900 Cell)]
Mean Number of Available Channels (TCHs Converted from Dynamic PDCHs) = [Mean Number of Available Channels (TCHs Converted from Dynamic PDCHs) (900/850 Cell)] + [Mean Number of Available Channels (TCHs Converted from Dynamic PDCHs) (1800/1900 Cell)]
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Mean Number of Available Channels (PDCHs Converted from Dynamic PDCHs) = [Mean Number of Available Channels (PDCHs Converted from Dynamic PDCHs) (900/850 Cell)] + [Mean Number of Available Channels (PDCHs Converted from Dynamic PDCHs) (1800/1900 Cell)]
13.2.5 SDCCH Availability Counter RR300: SDCCH Availability
Meaning The RR300: SDCCH Availability counter is used to measure the percentage of the number of the available SDCCHs to the number of the configured SDCCHs.
Trigger Point None.
Formula SDCCH Availability = ([Mean Number of Available Channels (SDCCH) (900/850 Cell)]+ [Mean Number of Available Channels (SDCCH) (1800/1900 Cell)])*{100}/ ([Mean Number of Dynamically Configured Channels (SDCCH) (900/850 Cell)]+ [Mean Number of Dynamically Configured Channels (SDCCH) (1800/1900 Cell)])
13.2.6 TCH Availability Counter RR307: TCH Availability
Meaning The RR307: TCH Availability counter is used to measure the percentage of the number of the available TCHs to the number of the configured TCHs.
Trigger Point None.
Formula TCH Availability =
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([Mean Number of Available Channels (TCHF) (900/850 Cell)]+ [Mean Number of Available Channels (TCHF) (1800/1900 Cell)]+ [Mean Number of Available Channels (TCHH) (900/850 Cell)]+ [Mean Number of Available Channels (TCHH) (1800/1900 Cell)])*{100}/ ([Mean Number of Dynamically Configured Channels (TCHF) (900/850 Cell)]+ [Mean Number of Dynamically Configured Channels (TCHF) (1800/1900 Cell)]+ [Mean Number of Dynamically Configured Channels (TCHH) (900/850 Cell)]+ [Mean Number of Dynamically Configured Channels (TCHH) (1800/1900 Cell)])
13.2.7 Analyzed Measurement of Initially Configured Channels Counter Table 13-6 lists the counters in the Analyzed Measurement of Initially Configured Channels measurement unit. Table 13-6 Counters in the Analyzed Measurement of Initially Configured Channels measurement unit Number
Counter
1
CR3000: Number of Initially Configured Channels (SDCCH)
2
CR300B: Number of Initially Configured Channels (TCH)
3
CR3007: Number of Initially Configured Channels (TCHF)
4
CR3008: Number of Initially Configured Channels (TCHH)
5
CR3001: Number of Initially Configured Channels (Static PDCH)
6
CR3002: Number of Initially Configured Channels (Dynamic PDCH)
7
CR3005: Number of Initially Configured Channels (Static EDGE)
8
CR3006: Number of Initially Configured Channels (Dynamic EDGE)
9
CR3009: Number of Initially Configured Channels (CBCH)
Meaning The CR3000: Number of Initially Configured Channels (SDCCH) counter is used to measure the number of the configured SDCCHs (excluding the SDCCHs obtained from the dynamic adjustment of the TCHFs) in the cells of all frequency bands within the BSC at each sampling point. The CR300B: Number of Initially Configured Channels (TCH) counter is used to measure the configured TCHs (excluding the TCHs obtained from the dynamic adjustment of the dynamic PDCHs) in the cells of all frequency bands under the BSC at each sampling point. The CR3007: Number of Initially Configured Channels (TCHF) counter is used to measure the number of configured TCHFs (excluding the TCHFs obtained from the dynamic adjustment of the dynamic PDCHs and excluding the TCHFs obtained from the dynamic adjustment of the TCHHs) in the cells of all frequency bands under the BSC at each sampling point.
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The CR3008: Number of Initially Configured Channels (TCHH) counter is used to measure the number of the configured TCHHs (excluding the TCHHs obtained from the dynamic adjustment of the TCHFs) in the cells of all frequency bands under the BSC at each sampling point. The CR3001: Number of Initially Configured Channels (Static PDCH) counter is used to measure the number of configured TCHHs (excluding the TCHHs obtained from the dynamic adjustment of the TCHFs) in the cells of all frequency bands under the BSC at each sampling point. The CR3002: Number of Initially Configured Channels (Dynamic PDCH) counter is used to measure the number of the dynamic PDCHs (including the dynamic PDCHs that have been dynamically adjusted to TCHFs) configured in the cells of all frequency bands under the BSC at each sampling point. The CR3005: Number of Initially Configured Channels (Static EDGE) counter is used to measure the number of the static EDGE PDCHs configured in the cells of all frequency bands under the BSC at each sampling point. The CR3006: Number of Initially Configured Channels (Dynamic EDGE) counter is used to measure the number of the dynamic EDGE PDCHs (including the dynamic EDGE PDCHs that have been dynamically adjusted to TCHFs) configured in the cells of all frequency bands under the BSC at each sampling point. The CR3009: Number of Initially Configured Channels (CBCH) counter is used to measure the number of the configured CBCHs in the cells of all frequency bands under the BSC at each sampling point.
Trigger Point None.
Formula Number of Initially Configured Channels (SDCCH) = [Number of Initially Configured Channels (SDCCH) (900/850 Cell)] + [Number of Initially Configured Channels (SDCCH) (1800/1900 Cell)]
Number of Initially Configured Channels (TCH) = [Number of Initially Configured Channels (TCHF)] + [Number of Initially Configured Channels (TCHH)]
Number of Initially Configured Channels (TCHF) = [Number of Initially Configured Channels (TCHF) (900/850 Cell)] + [Number of Initially Configured Channels (TCHF) (1800/1900 Cell)]
Number of Initially Configured Channels (TCHH) = [Number of Initially Configured Channels (TCHH) (900/850 Cell)] +
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[Number of Initially Configured Channels (TCHH) (1800/1900 Cell)]
Number of Initially Configured Channels (Static PDCH) = [Number of Initially Configured Channels (Static PDCH) (900/850 Cell)] + [Number of Initially Configured Channels (Static PDCH) (1800/1900 Cell)]
Number of Initially Configured Channels (Dynamic PDCH) = [Number of Initially Configured Channels (Dynamic PDCH) (900/850 Cell)] + [Number of Initially Configured Channels (Dynamic PDCH) (1800/1900 Cell)]
Number of Initially Configured Channels (Static EDGE) = [Number of Initially Configured Channels (Static EDGE) (900/850 Cell)] + [Number of Initially Configured Channels (Static EDGE) (1800/1900 Cell)]
Number of Initially Configured Channels (Dynamic EDGE) = [Number of Initially Configured Channels (Dynamic EDGE) (900/850 Cell)] + [Number of Initially Configured Channels (Dynamic EDGE) (1800/1900 Cell)]
Number of Initially Configured Channels (CBCH) = [Number of Initially Configured Channels (CBCH) (900/850 Cell)] + [Number of Initially Configured Channels (CBCH) (1800/1900 Cell)]
13.3 Channel Conversion Measurement per Cell 13.3.1 Overview For the optimum assignment of the TCHs and the SDCCHs, the system supports the conversion between full-rate TCHs (TCHFs) and half-rate TCHs (TCHHs) and the conversion between TCHs and SDCCHs in certain conditions. The Channel Conversion Measurement per Cell measurement unit is used to measure the number of the conversion requests and the number of the successful conversions among the previous channels. The counters in the measurement unit reflect the implementation status of the channel conversion procedure and the actual usage of the channel resources.
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Table 13-7 lists the counters in the Channel Conversion Measurement per Cell measurement unit. Table 13-7 Counters in the Channel Conversion Measurement per Cell measurement unit Number
Counter
1
R3505A: Channel Conversion Requests (TCHF-TCHH)
2
R3525A: Successful Channel Conversions (TCHF-TCHH)
3
R3505B: Channel Conversion Requests (TCHH-TCHF)
4
R3525B: Successful Channel Conversions (TCHH-TCHF)
5
R3516A: Number of Channel Conversions (TCH-SDCCH)
6
R3516B: Number of Channel Conversions (SDCCH-TCH)
13.3.2 Channel Conversion Requests (TCHF-TCHH) Counter R3505A: Channel Conversion Requests (TCHF-TCHH)
Meaning Because the number of the initially configured TCHFs and TCHHs cannot meet the actual traffic requirements, the BSC enables the TCHFs to be adjusted to TCHHs in certain conditions. The initially configured dynamic PDCHs are not involved in the adjustment of TCHHs. In certain conditions, the initially configured TCHFs can be adjusted to TCHHs and the corresponding TCHHs can be adjusted to TCHFs. The trigger conditions of the adjustment from TCHFs to TCHHs during channel assignment are as follows: z
The system allows the dynamic data adjustment.
z
The requested type of channels is TCHH, but there is no qualified TCHH available.
z
There is qualified idle TCHF.
The adjustment procedure is as follows: Select a TCHF available for adjustment. For concentric cells, select the idle channels on the TRXs in the underlaid subcell as adjustable channels. If there are no channels available for adjustment, the adjustment fails. Convert the channel type and update the channel resources. Then perform configurations on the channels under the BTS. When the conversion of the channel type is complete, the BTS sends a status change report to the BSC. If the channel is available, the idle TCHH converted by the BSC can be used for channel assignment. The channel adjustment is complete and a TCHF is adjusted to two TCHHs.
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Trigger Point Before channel assignment, this counter is measured if the adjustment conditions are met and the adjustment from TCHFs to TCHHs is triggered.
Formula None.
13.3.3 Successful Channel Conversions (TCHF-TCHH) Counter R3525A: Successful Channel Conversions (TCHF-TCHH)
Meaning Because the number of the initially configured TCHFs and TCHHs cannot meet the actual traffic requirements, the BSC enables the TCHFs to be adjusted to TCHHs in certain conditions. The initially configured dynamic PDCHs are not involved in the adjustment of TCHHs. In certain conditions, the initially configured TCHFs can be adjusted to TCHHs and the corresponding TCHHs can be adjusted to TCHFs. The trigger conditions of the adjustment from TCHFs to TCHHs during channel assignment are as follows: z
The system allows the dynamic data adjustment.
z
The requested type of channels is TCHH, but there is no qualified TCHH available.
z
There is qualified idle TCHF.
The adjustment procedure is as follows: Select a TCHF available for adjustment. For concentric cells, select the idle channels on the TRXs in the underlaid subcell as adjustable channels. If there are no channels available for adjustment, the adjustment fails. Convert the channel type and update the channel resources. Then perform configurations on the channels under the BTS. When the conversion of the channel type is complete, the BTS sends a status change report to the BSC. If the channel is available, the idle TCHH converted by the BSC can be used for channel assignment. The channel adjustment is complete and a TCHF is adjusted to two TCHHs.
Trigger Point This counter is measured if the following conditions are met: z
The adjustment from TCHFs to TCHHs is triggered.
z
The BSC receives a channel status change report from the BTS.
z
The BTS notifies to the BSC that the channel is available after the adjustment.
Formula None.
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13.3.4 Channel Conversion Requests (TCHH-TCHF) Counter R3505B: Channel Conversion Requests (TCHH-TCHF)
Meaning Because the number of the initially configured TCHFs and TCHHs cannot meet the actual traffic requirements, the BSC enables the TCHHs to be adjusted to TCHFs in certain conditions. In certain conditions, the initially configured TCHHs can be adjusted to TCHFs and the corresponding TCHFs can be adjusted to TCHHs. The trigger conditions of the adjustment from TCHHs to TCHFs during channel assignment are as follows: z
The system allows the dynamic data adjustment.
z
The requested type of channels is TCHF, but there is no qualified TCHF available.
z
There are at least two qualified idle TCHHs.
The adjustment procedure is as follows: Select two TCHHs available for adjustment. If there are no channels available for adjustment, the adjustment fails. Convert the channel type and update the channel resources. Then perform configurations on the channels under the BTS. When the conversion of the channel type is complete, the BTS sends a status change report to the BSC. If the channel is available, the idle TCHF converted by the BSC can be used for channel assignment. The channel adjustment is complete and the two TCHHs are adjusted to one TCHF.
Trigger Point Before the channel assignment, this counter is measured when the adjustment from two TCHFs to a TCHF is initiated.
Formula None.
13.3.5 Successful Channel Conversions (TCHH-TCHF) Counter R3525B: Successful Channel Conversions (TCHH-TCHF)
Meaning Because the number of the initially configured TCHFs and TCHHs cannot meet the actual traffic requirements, the BSC enables the TCHHs to be adjusted to TCHFs in certain conditions. In certain conditions, the initially configured TCHHs can be adjusted to TCHFs and the corresponding TCHFs can be adjusted to TCHHs.
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The trigger conditions of the adjustment from TCHHs to TCHFs during channel assignment are as follows: z
The system allows the dynamic data adjustment.
z
The requested type of channels is TCHF, but there is no qualified TCHF available.
z
There are at least two qualified idle TCHHs.
The adjustment procedure is as follows: Select two TCHHs available for adjustment. If there are no channels available for adjustment, the adjustment fails. Convert the channel type and update the channel resources. Then perform configurations on the channels under the BTS. When the conversion of the channel type is complete, the BTS sends a status change report to the BSC. If the channel is available, the idle TCHF converted by the BSC can be used for channel assignment. The channel adjustment is complete and the two TCHHs are adjusted to one TCHF.
Trigger Point This counter is measured if the following conditions are met: z
The adjustment from TCHHs to TCHFs is triggered.
z
The BSC receives a channel status change report from the BTS.
z
The BTS notifies to the BSC that the channel is available after the adjustment.
Formula None.
13.3.6 Number of Channel Conversions (TCH-SDCCH) Counter R3516A: Number of Channel Conversions (TCH-SDCCH)
Meaning When assigning the SDCCHs, the BSC starts to convert a TCH to a SDCCH if the following conditions are met: z
Dynamic adjustment of SDCCH is allowed.
z
Number of the idle SDCCHs in the current cell is smaller than the set threshold on the LMT.
If the adjusted TCH is idle, the dynamic conversion from TCH to SDCCH is immediately originated. If the adjusted TCH is not idle, the call that seizes the current TCH is handed over to another channel. Then the dynamic adjustment is originated.
Trigger Point When the BSC originates the dynamic adjustment from TCH to SDCCH, this counter is measured.
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Formula None.
13.3.7 Number of Channel Conversions (SDCCH-TCH) Counter R3516B: Number of Channel Conversions (SDCCH-TCH)
Meaning If the dynamic adjustment of SDCCH is allowed, the BSC activates the dynamic adjustment algorithm (leaky bucket algorithm) to periodically switch the SDCCH (dynamically converted from TCH) back to TCH. If the SDCCH is in use, reassigning the SDCCH after a release is forbidden. The SDCCH is directly switched back to TCH after the release.
Trigger Point When the SDCCH is converted to TCH, this counter is measured.
Formula None.
13.4 Channel Busy Duration Measurement per Cell 13.4.1 Overview The Channel Busy Duration Measurement per Cell measurement unit is used to measure the following items: z
Duration of busy state of SDCCH and TCH in the cell
z
Duration of the state of no available SDCCHs and TCHs
This measurement unit reflects the use of SDCCH and TCH. Table 13-8 lists the classification of the counters in the Channel Busy Duration Measurement per Cell measurement unit. Table 13-8 Classification of the counters in the Channel Busy Duration Measurement per Cell measurement unit Counter Classification
Section
Busy State Duration of All Channels (SDCCH/TCHF/TCHH)
13.4.2
Mean Duration of Busy State for All Channels (SDCCH/TCHF/TCHH)
13.4.3
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13.4.2 Busy State Duration of All Channels (SDCCH/TCHF/TCHH) Counter Table 13-9 lists the counters in the Busy State Duration of All Channels (SDCCH/TCHF/TCHH) measurement unit. Table 13-9 Counters in the Busy State Duration of All Channels (SDCCH/TCHF/TCHH) measurement unit Number
Counter
1
R3540: Busy State Duration of Channels (SDCCH)
2
R3541: Busy State Duration of Channels (TCHF)
3
R3542: Busy State Duration of Channels (TCHH)
Meaning The previous counters are used to measure the following items of a cell under the BSC in a granularity period: z
Duration of the state of no available SDCCHs
z
Duration of the state of no available TCHFs
z
Duration of the state of no available TCHHs
At the timing sampling points for channel assignment measurement, the duration of the previous counters is accumulated based on the channel type in either of the following cases: z
All the SDCCHs in the cell are seized or unavailable.
z
All the TCHFs in the cell are seized or unavailable.
z
All the TCHHs in the cell are seized or unavailable.
Trigger Point At the timing sampling points for channel assignment measurement, if the SDCCHs, TCHFs, or TCHHs in all the cells are not available, the previous counters are measured.
Formula None.
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13.4.3 Mean Duration of Busy State for All Channels (SDCCH/TCHF/TCHH) Counter Table 13-10 lists the counters in the Mean Duration of Busy State for All Channels (SDCCH/TCHF/TCHH) measurement unit. Table 13-10 Counters in the Mean Duration of Busy State for All Channels (SDCCH/TCHF/TCHH) measurement unit Number
Counter
1
AR3530: Mean Duration of Busy State for Channels (SDCCH)
2
AR3531: Mean Duration of Busy State for Channels (TCHF)
3
AR3532: Mean Duration of Busy State for Channels (TCHH)
Meaning This measurement unit is used to measure the mean duration of the state for seized SDCCHs, TCHFs, or TCHHs configured in a cell under the BSC in a granularity period. The previous counters reflect the random access frequency of an MS on the cell in the granularity period in the form of the mean duration of busy state for channels. The Mean Duration of Busy State for Channels (SDCCH) counter is expressed in seconds.
Trigger Point None.
Formula Mean Duration of Busy State for Channels (SDCCH) = [Busy State Duration of Channels (SDCCH)]/(([Number of Dynamically Configured Channels (SDCCH) (900/850 Cell)]/[Sampled Number of Configured Channels])+([Number of Dynamically Configured Channels (SDCCH) (1800/1900 Cell)]/[Sampled Number of Configured Channels]))
Mean Duration of Busy State for Channels (TCHF) = [Busy State Duration of Channels (TCHF)]/(([Number of Dynamically Configured Channels (TCHF) (900/850 Cell)]/[Sampled Number of Configured Channels])+([Number of Dynamically Configured Channels (TCHF) (1800/1900 Cell)]/[Sampled Number of Configured Channels]))
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Mean Duration of Busy State for Channels (TCHH) = [Busy State Duration of Channels (TCHH)]/(([Number of Dynamically Configured Channels (TCHH) (900/850 Cell)]/[Sampled Number of Configured Channels])+([Number of Dynamically Configured Channels (TCHH) (1800/1900 Cell)]/[Sampled Number of Configured Channels]))
13.5 Measurement of Maximum Busy Channels per Cell Counter The Measurement of Maximum Busy Channels per Cell measurement unit is used to measure the maximum number of the busy SDCCHs and the busy TCHs configured in a cell under the BSC in a granularity period. This measurement unit reflects the highest frequency of the MS random access in the cell in the granularity period in the form of the maximum number of busy channels. Table 13-11 lists the counters in the Measurement of Maximum Busy Channels per Cell measurement unit. Table 13-11 Counters in the Measurement of Maximum Busy Channels per Cell measurement unit Number
Counter
1
R3560: Maximum Number of Busy Channels (SDCCH)
2
R3561: Maximum Number of Busy Channels (TCHF)
3
R3562: Maximum Number of Busy Channels (TCHH)
Meaning The previous counters are used to measure the maximum number of busy SDCCHs, busy TCHFs, and busy TCHHs configured in a cell under the BSC. At the sampling points of the channel assignment measurement, the system records the maximum number of busy SDCCHs, busy TCHFs, and busy TCHHs through comparisons.
Trigger Point At the sampling points of the channel assignment measurement, the system obtains the maximum number of busy SDCCHs, busy TCHFs, or TCHHs through comparisons in the granularity period and records the number in the corresponding counter.
Formula None.
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13.6 Channel State Measurement per Cell 13.6.1 Overview The Channel State Measurement per Cell measurement unit is used to measure the following items in the cells on the 900/850 or 1800/1900 band: z
Mean number of busy SDCCHs
z
Mean number of busy TCHs
z
Mean number of blocked SDCCHs
z
Mean number of blocked TCHs
z
Mean number of idle SDCCHs
z
Mean number of idle TCHs
The number of channels includes the number of converted SDCCHs or TCHs. A channel has three states: busy, blocked, and idle. The busy state means that the channel is seized. The mean number of busy state reflects the random access frequency of an MS in the cell at a sampling point in the form of the number of the seized channels. The blocked state means that the channel is blocked because of operation and maintenance (O&M) or because of broken radio signaling links (RSLs). The mean number of blocked state reflects the blocking of channels in the cell at a sampling point because of O&M or because of the broken RSLs. The idle state means that the channel is not seized and is normal. The mean number of idle state reflects the idling of channels in the cell at a sampling point. Table 13-12 lists the classification of the counters in the Channel State Measurement per Cell measurement unit. Table 13-12 Classification of the counters in the Channel State Measurement per Cell measurement unit Counter Classification
Section
Mean Number of Busy Signaling Channels (SDCCH/TCHF/TCHH)
13.6.2
Mean Number of Busy TCHs (TCHF/TCHH)
13.6.3
Mean Number of Blocked Channels
13.6.4
Mean Number of Idle Channels
13.6.5
Mean Number of Busy TCHs (Overlaid Subcell)
13.6.6
Mean Number of Busy TCHs (Underlaid Subcell)
13.6.7
Mean Number of Busy Signaling Channels (SDCCH/TCHF/TCHH)
13.6.8
Mean Number of Busy TCHs (TCHF/TCHH)
13.6.9
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13.6.2 Mean Number of Busy Signaling Channels (SDCCH/TCHF/TCHH) Counter Table 13-13 lists the counters in the Mean Number of Busy Signaling Channels (SDCCH/TCHF/TCHH) measurement unit. Table 13-13 Counters in the Mean Number of Busy Signaling Channels (SDCCH/TCHF/TCHH) measurement unit Number
Counter
1
AR3550A: Mean Number of Busy Signaling Channels (SDCCH) (900/850 Cell)
2
AR3550B: Mean Number of Busy Signaling Channels (SDCCH) (1800/1900 Cell)
3
AR3553A: Mean Number of Busy Signaling Channels (TCHF) (900/850 Cell)
4
AR3553B: Mean Number of Busy Signaling Channels (TCHF) (1800/1900 Cell)
5
AR3554A: Mean Number of Busy Signaling Channels (TCHH) (900/850 Cell)
6
AR3554B: Mean Number of Busy Signaling Channels (TCHH) (1800/1900 Cell)
Meaning Various types (SDCCH, TCHF, or TCHH) of channels configured in the cells can be used as signaling channels. The previous counters are used to measure the mean number of the seized signaling channels under the BSC in the granularity period. The previous counters are the total number (obtained from all the sampling points in the granularity period) of busy signaling channels divided by the sampling number.
Trigger Point None.
Formula Mean Number of Busy Signaling Channels (SDCCH) (900/850 Cell) = [Number of Busy Signaling Channels (SDCCH) (900/850 Cell)]/[Sampled Number of Channel State]
Mean Number of Busy Signaling Channels (SDCCH) (1800/1900 Cell) =
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[Number of Busy Signaling Channels (SDCCH) (1800/1900 Cell)]/[Sampled Number of Channel State]
Mean Number of Busy Signaling Channels (TCHF) (900/850 Cell) = [Number of Busy Signaling Channels (TCHF) (900/850 Cell)]/[Sampled Number of Channel State]
Mean Number of Busy Signaling Channels (TCHF) (1800/1900 Cell) = [Number of Busy Signaling Channels (TCHF) (1800/1900 Cell)]/[Sampled Number of Channel State]
Mean Number of Busy Signaling Channels (TCHH) (900/850 Cell) = [Number of Busy Signaling Channels (TCHH) (900/850 Cell)]/[Sampled Number of Channel State]
Mean Number of Busy Signaling Channels (TCHH) (1800/1900 Cell) = [Number of Busy Signaling Channels (TCHH) (1800/1900 Cell)]/[Sampled Number of Channel State]
13.6.3 Mean Number of Busy TCHs (TCHF/TCHH) Counter Table 13-14 lists the counters in the Mean Number of Busy TCHs (TCHF/TCHH) measurement unit. Table 13-14 Counters in the Mean Number of Busy TCHs (TCHF/TCHH) measurement unit Number
Counter
1
AR3551A: Mean Number of Busy TCHs (TCHF) (900/850 Cell)
2
AR3551B: Mean Number of Busy TCHs (TCHF) (1800/1900 Cell)
3
AR3552A: Mean Number of Busy TCHs (TCHH) (900/850 Cell)
4
AR3552B: Mean Number of Busy TCHs (TCHH) (1800/1900 Cell)
Meaning Various types of channels configured in the cells can be used as traffic channels. The previous counters are used to measure the mean number of the seized traffic channels under the BSC in the granularity period.
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Trigger Point None.
Formula Mean Number of Busy TCHs (TCHF) (900/850 Cell) = [Number of Busy TCHs (TCHF) (900/850 Cell)]/[Sampled Number of Channel State]
Mean Number of Busy TCHs (TCHF) (1800/1900 Cell) = [Number of Busy TCHs (TCHF) (1800/1900 Cell)]/[Sampled Number of Channel State]
Mean Number of Busy TCHs (TCHH) (900/850 Cell) = [Number of Busy TCHs (TCHH) (900/850 Cell)]/[Sampled Number of Channel State]
Mean Number of Busy TCHs (TCHH) (1800/1900 Cell) = [Number of Busy TCHs (TCHH) (1800/1900 Cell)]/[Sampled Number of Channel State]
13.6.4 Mean Number of Blocked Channels Counter Table 13-15 lists the counters in the Mean Number of Blocked Channels measurement unit. Table 13-15 Counters in the Mean Number of Blocked Channels measurement unit Number
Counter
1
AR3570: Mean Number of Blocked Channels (SDCCH)
2
AR3571: Mean Number of Blocked Channels (TCHF)
3
AR3572: Mean Number of Blocked Channels (TCHH)
Meaning The previous counters are used to measure the mean number of the blocked SDCCHs, of the blocked TCHFs, and of the blocked TCHHs in a cell under the BSC in the granularity period.
Trigger Point None.
Formula Mean Number of Blocked Channels (SDCCH) =
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[Number of Blocked Channels (SDCCH)]/[Sampled Number of Channel State]
Mean Number of Blocked Channels (TCHF) = [Number of Blocked Channels (TCHF)]/[Sampled Number of Channel State]
Mean Number of Blocked Channels (TCHH) = [Number of Blocked Channels (TCHH)]/[Sampled Number of Channel State]
13.6.5 Mean Number of Idle Channels Counter Table 13-16 lists the counters in the Mean Number of Idle Channels measurement unit. Table 13-16 Counters in the Mean Number of Idle Channels measurement unit Number
Counter
1
AR3580: Mean Number of Idle Channels (SDCCH)
2
AR3581: Mean Number of Idle Channels (TCHF)
3
AR3582: Mean Number of Idle Channels (TCHH)
Meaning The previous counters are used to measure the mean number of the idle SDCCHs, of the idle TCHFs, and of the idle TCHHs in a cell under the BSC in the granularity period.
Trigger Point None.
Formula Mean Number of Idle Channels (SDCCH) = [Number of Idle Channels (SDCCH)]/[Sampled Number of Channel State]
Mean Number of Idle Channels (TCHF) = [Number of Idle Channels (TCHF)]/[Sampled Number of Channel State]
Mean Number of Idle Channels (TCHH) = [Number of Idle Channels (TCHH)]/[Sampled Number of Channel State]
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13.6.6 Mean Number of Busy TCHs (Overlaid Subcell) Counter AR3557: Mean Number of Busy TCHs (Overlaid Subcell)
Meaning This counter is used to measure the mean number of the busy traffic channels (TCHFs or TCHHs) in an overlaid subcell under the BSC during the granularity period.
Trigger Point None.
Formula Mean Number of Busy TCHs (Overlaid Subcell) = [Number of Busy TCHs (Overlaid Subcell)]/[Sampled Number of Channel State]
13.6.7 Mean Number of Busy TCHs (Underlaid Subcell) Counter AR3558: Mean Number of Busy TCHs (Underlaid Subcell)
Meaning This counter is used to measure the mean number of the busy traffic channels (TCHFs or TCHHs) in an underlaid subcell under the BSC during the granularity period.
Trigger Point None.
Formula Mean Number of Busy TCHs (Underlaid Subcell) = [Number of Busy TCHs (Underlaid Subcell)]/[Sampled Number of Channel State]
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13.6.8 Mean Number of Busy Signaling Channels (SDCCH/TCHF/TCHH) Counter Table 13-17 lists the counters in the Mean Number of Busy Signaling Channels (SDCCH/TCHF/TCHH) measurement unit. Table 13-17 Counters in the Mean Number of Busy Signaling Channels (SDCCH/TCHF/TCHH) measurement unit Number
Counter
1
CR3550: Mean Number of Busy Signaling Channels (SDCCH)
2
CR3553: Mean Number of Busy Signaling Channels (TCHF)
3
CR3554: Mean Number of Busy Signaling Channels (TCHH)
Meaning Various types of channels configured in the cells can be used as signaling channels. The previous counters are used to measure the mean number of the seized signaling channels under the BSC in the granularity period.
Trigger Point None.
Formula Mean Number of Busy Signaling Channels (SDCCH) = [Mean Number of Busy Signaling Channels (SDCCH) (900/850 Cell)] + [Mean Number of Busy Signaling Channels (SDCCH) (1800/1900 Cell)]
Mean Number of Busy Signaling Channels (TCHF) = [Mean Number of Busy Signaling Channels (TCHF) (900/850 Cell)] + [Mean Number of Busy Signaling Channels (TCHF) (1800/1900 Cell)]
Mean Number of Busy Signaling Channels (TCHH) = [Mean Number of Busy Signaling Channels (TCHH) (900/850 Cell)] + [Mean Number of Busy Signaling Channels (TCHH) (1800/1900 Cell)]
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13.6.9 Mean Number of Busy TCHs (TCHF/TCHH) Counter Table 13-18 list the counters in the Mean Number of Busy TCHs (TCHF/TCHH) measurement unit. Table 13-18 Counters in the Mean Number of Busy TCHs (TCHF/TCHH) measurement unit Number
Counter
1
CR3551: Mean Number of Busy TCHs (TCHF)
2
CR3552: Mean Number of Busy TCHs (TCHH)
Meaning TCHFs and TCHHs configured in the cells can be used as traffic channels. The previous counters are used to measure the mean number of the seized traffic channels under the BSC in the granularity period.
Trigger Point None.
Formula Mean Number of Busy TCHs (TCHF) = [Mean Number of Busy TCHs (TCHF) (900/850 Cell)] + [Mean Number of Busy TCHs (TCHF) (1800/1900 Cell)] Mean Number of Busy TCHs (TCHH) = [Mean Number of Busy TCHs (TCHH) (900/850 Cell)] + [Mean Number of Busy TCHs (TCHH) (1800/1900 Cell)]
13.7 Channel Assignment Request Measurement per Cell 13.7.1 Overview BSS channel assignment occurs in the following procedures:
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z
Immediate assignment
z
Assignment
z
Internal intra-cell handover
z
Internal inter-cell handover
z
Incoming external inter-cell handover
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The Channel Assignment Request Measurement per Cell measurement unit is used to measure the SDCCH assignment requests and the TCH assignment requests in the previous procedures. Table 13-19 lists the classification of the counters in the Channel Assignment Request Measurement per Cell measurement unit. Table 13-19 Classification of the counters in the Channel Assignment Request Measurement per Cell measurement unit Counter Classification
Section
Channel Assignment Requests in Immediate Assignment Procedure (SDCCH/TCHF/TCHH/TCH)
13.7.2
Channel Assignment Requests in Assignment Procedure (TCHF/TCHH/TCH)
13.7.3
Channel Assignment Requests in Internal Intra-Cell Handover Procedure (SDCCH/TCHF/TCHH/TCH)
13.7.4
Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (SDCCH/TCHF/TCHH/TCH)
13.7.5
Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (SDCCH/TCHF/TCHH/TCH)
13.7.6
Channel Assignment Requests (SDCCH)
13.7.7
Channel Assignment Requests (TCHF)
13.7.8
Channel Assignment Requests (TCHH)
13.7.9
Channel Assignment Requests (TCH)
13.7.10
13.7.2 Channel Assignment Requests in Immediate Assignment Procedure (SDCCH/TCHF/TCHH/TCH) Counter Table 13-20 lists the counters in the Channel Assignment Requests in Immediate Assignment Procedure (SDCCH/TCHF/TCHH/TCH) measurement unit. Table 13-20 Counters in the Channel Assignment Requests in Immediate Assignment Procedure (SDCCH/TCHF/TCHH/TCH) measurement unit Number
Counter
1
R3100A: Channel Assignment Requests in Immediate Assignment Procedure (SDCCH)
2
R3107A: Channel Assignment Requests in Immediate Assignment Procedure (TCHF)
3
R3108A: Channel Assignment Requests in Immediate Assignment Procedure (TCHH)
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Number
Counter
4
R3109A: Channel Assignment Requests in Immediate Assignment Procedure (TCH)
Meaning The previous counters are used to measure the channel assignment requests for SDCCHs, TCHFs, and TCHHs in the immediate assignment procedure. When the MS directly sends the requests to the BSS or sends requests in the reassignment procedure, the corresponding counters are measured based on the channel type. Channel Assignment Requests in Immediate Assignment Procedure (TCH) indicates that the number of the channel assignment requests for TCHFs or TCHHs in the immediate assignment procedure.
Trigger Point As shown at point A in Figure 13-1, the BSC measures the previous counters based on the channel type in the immediate assignment procedure if the following conditions are met: z
The BSC receives the CHAN RQD message from the BTS.
z
The MS requests for SDCCHs, TCHFs, or TCHHs or the system performs another request for SDCCHs, TCHFs, or TCHHs.
Figure 13-1 Channel assignment in the immediate assignment procedure MS
BSC
BTS CHAN REQ CHAN RQD
A CHAN ACT CHAN ACT ACK IMM ASS IMM ASS SABM UA EST IND
Formula None.
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13.7.3 Channel Assignment Requests in Assignment Procedure (TCHF/TCHH/TCH) Counter Table 13-21 lists the counters in the Channel Assignment Requests in Assignment Procedure (TCHF/TCHH/TCH) measurement unit. Table 13-21 Counters in the Channel Assignment Requests in Assignment Procedure (TCHF/TCHH/TCH) measurement unit Number
Counter
1
R3107B: Channel Assignment Requests in Assignment Procedure (TCHF)
2
R3108B: Channel Assignment Requests in Assignment Procedure (TCHH)
3
R3109B: Channel Assignment Requests in Assignment Procedure (TCH)
Meaning In the assignment procedure, the BSS assigns radio channels to an MS for signaling transmission. After the radio resource connection is established between the MS and the BSS, the mobility management and call control connection to the MSC is established through the radio channel. According to the call control connection request from the MS, the MSC assigns terrestrial resources to the MS and specifies the channel type for the assignment procedure in the ASS REQ message. If the MSC specifies TCHFs or TCHHs for the assignment procedure in the ASS REQ message, the BSC measures this counter after receiving the message. Channel Assignment Requests in Assignment Procedure (TCH) indicates that the number of the channel assignment requests for TCHFs or TCHHs in the assignment procedure.
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Trigger Point As shown at point A in Figure 13-2, the previous counters are measured if the BSC receives the ASS REQ message from the MSC and the channel type that the message carries is TCHF or TCHH. Figure 13-2 Channel assignment in the assignment procedure MS
BTS
BSC
MSC ASS REQ
A CHAN ACT CHAN ACT ACK ASS CMD SABM UA
Formula None.
13.7.4 Channel Assignment Requests in Internal Intra-Cell Handover Procedure (SDCCH/TCHF/TCHH/TCH) Counter Table 13-22 lists the counters in the Channel Assignment Requests in Internal Intra-Cell Handover Procedure (SDCCH/TCHF/TCHH/TCH) measurement unit. Table 13-22 Counters in the Channel Assignment Requests in Internal Intra-Cell Handover Procedure (SDCCH/TCHF/TCHH/TCH) measurement unit
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Number
Counter
1
R3100C: Channel Assignment Requests in Internal Intra-Cell Handover Procedure (SDCCH)
2
R3107C: Channel Assignment Requests in Internal Intra-Cell Handover Procedure (TCHF)
3
R3108C: Channel Assignment Requests in Internal Intra-Cell Handover Procedure (TCHH)
4
R3109C: Channel Assignment Requests in Internal Intra-Cell Handover Procedure (TCH)
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Meaning In the internal intra-cell handover procedure, the BSC requests the system to reassign the radio channels. If the requested channel type is SDCCH, TCHF, or TCHH, the corresponding counters are measured after the BSC receives the requests. Channel Assignment Requests in Internal Intra-Cell Handover Procedure (TCH) indicates that the number of the channel assignment requests for TCHFs or TCHHs in the internal intra-cell handover procedure.
Trigger Point As shown at point A in Figure 13-3, the previous counters are measured based on the channel type if the requested channel is SDCCH, TCHF, or TCHH in the internal intra-cell handover procedure. Figure 13-3 Channel assignment in the internal intra-cell handover procedure MS
BTS
BSC
CHAN REQ CHAN RQD A CHAN ACT CHAN ACT ACK HO CMD
Formula None.
13.7.5 Channel Assignment Requests in Incoming Internal InterCell Handover Procedure (SDCCH/TCHF/TCHH/TCH) Counter Table 13-23 lists the counters in the Channel Assignment Requests in Incoming Internal InterCell Handover Procedure (SDCCH/TCHF/TCHH/TCH) measurement unit. Table 13-23 Counters in the Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (SDCCH/TCHF/TCHH/TCH) measurement unit Number
Counter
1
R3100D: Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (SDCCH)
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Number
Counter
2
R3107D: Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (TCHF)
3
R3108D: Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (TCHH)
4
R3109D: Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (TCH)
Meaning In the incoming internal inter-cell handover procedure, the BSC requests the system to reassign the radio channels. If the requested channel type is SDCCH, TCHF, or TCHH, the corresponding counters are measured after the BSC receives the requests. Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (TCH) indicates that the number of the channel assignment requests for TCHFs or TCHHs in the incoming internal inter-cell handover procedure.
Trigger Point As shown at point A in Figure 13-4, the previous counters are measured based on the channel type if the requested channel is SDCCH, TCHF, or TCHH in the incoming internal inter-cell handover procedure. Figure 13-4 Channel assignment in the incoming internal inter-cell handover procedure MS
BTS
BSC
MR A CHAN ACT CHAN ACT ACK HO CMD
Formula None.
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13.7.6 Channel Assignment Requests in Incoming External InterCell Handover Procedure (SDCCH/TCHF/TCHH/TCH) Counter Table 13-24 lists the counters in the Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure measurement unit. Table 13-24 Counters in the Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure measurement unit Number
Counter
1
R3100E: Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (SDCCH)
2
R3107E: Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (TCHF)
3
R3108E: Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (TCHH)
4
R3109E: Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (TCH)
Meaning The previous counters measure the times that the cells under the BSC receives the HANDOVER REQUEST message about SDCCH, TCHF, or TCHH from other BSCs through the MSC in the incoming external inter-cell handover procedure. Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (TCH) indicates that the number of the channel assignment requests for TCHFs or TCHHs in the incoming external inter-cell handover procedure.
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Trigger Point As shown at point A in Figure 13-5, the previous counters are measured based on the channel type if the requested channel is SDCCH, TCHF, or TCHH in the incoming external inter-cell handover procedure. Figure 13-5 Channel assignment in the incoming external inter-cell handover procedure MS
MSC
BSC1
BTS2
BSC2
MR HO RQD HO REQ A CHAN ACT CHAN ACT ACK HO REQ ACK HO CMD HO CMD
Formula None.
13.7.7 Channel Assignment Requests (SDCCH) Counter CR3100: Channel Assignment Requests (SDCCH)
Meaning If the requested channel type is SDCCH, the BSC measures the channel assignment requests in the following procedures: z
Immediate assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
Trigger Point None.
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Formula Channel Assignment Requests (SDCCH) = [Channel Assignment Requests in Immediate Assignment Procedure (SDCCH)]+ [Channel Assignment Requests in Internal Intra-Cell Handover Procedure (SDCCH)]+ [Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (SDCCH)]+ [Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (SDCCH)]
13.7.8 Channel Assignment Requests (TCHF) Counter CR3107: Channel Assignment Requests (TCHF)
Meaning If the requested channel type is TCHF, the BSC measures the channel assignment requests in the following procedures: z
Immediate assignment
z
Assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
Trigger Point None.
Formula Channel Assignment Requests (TCHF) = [Channel Assignment Requests in Immediate Assignment Procedure (TCHF)]+ [Channel Assignment Requests in Assignment Procedure (TCHF)]+ [Channel Assignment Requests in Internal Intra-Cell Handover Procedure (TCHF)]+ [Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (TCHF)]+ [Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (TCHF)]
13.7.9 Channel Assignment Requests (TCHH) Counter CR3108: Channel Assignment Requests (TCHH)
Meaning If the requested channel type is TCHH, the BSC measures the channel assignment requests in the following procedures: z
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Assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
Trigger Point None.
Formula Channel Assignment Requests (TCHH) = [Channel Assignment Requests in Immediate Assignment Procedure (TCHH)]+ [Channel Assignment Requests in Assignment Procedure (TCHH)]+ [Channel Assignment Requests in Internal Intra-Cell Handover Procedure (TCHH)] + [Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (TCHH)]+ [Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (TCHH)]
13.7.10 Channel Assignment Requests (TCH) Counter CR3109: Channel Assignment Requests (TCH)
Meaning If the requested channel type is TCH, the BSC measures the channel assignment requests in the following procedures: z
Immediate assignment
z
Assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
Trigger Point None.
Formula Channel Assignment Requests (TCH) = [Channel Assignment Requests in Immediate Assignment Procedure (TCH)]+ [Channel Assignment Requests in Assignment Procedure (TCH)]+ [Channel Assignment Requests in Internal Intra-Cell Handover Procedure (TCH)]+ [Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (TCH)]+ [Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (TCH)]
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13.8 Channel Assignment Success Measurement per TRX 13.8.1 Overview The Channel Assignment Success Measurement per TRX measurement unit is used to measure the successful channel assignments in the following procedures based on different channel types: z
Immediate assignment
z
Assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
Table 13-25 lists the classification of the counters in the Channel Assignment Success Measurement per TRX measurement unit. Table 13-25 Classification of the counters in the Channel Assignment Success Measurement per TRX measurement unit Counter Classification
Section
Successful Channel Assignments in Immediate Assignment Procedure (SDCCH/ TCHF/TCHH)
13.8.2
Successful Channel Assignments in Assignment Procedure (TCHF/TCHH)
13.8.3
Successful Channel Assignments in Internal Intra-Cell Handover Procedure (SDCCH/ TCHF/TCHH)
13.8.4
Successful Channel Assignments in Incoming Internal Inter-Cell Handover Procedure (SDCCH/ TCHF/TCHH)
13.8.5
Successful Channel Assignments in Incoming External Inter-Cell Handover Procedure (SDCCH/ TCHF/TCHH)
13.8.6
Successful Channel Assignments (SDCCH)
13.8.7
Successful Channel Assignments (TCHF)
13.8.8
Successful Channel Assignments (TCHH)
13.8.9
Successful Channel Assignments (TCH)
13.8.10
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13.8.2 Successful Channel Assignments in Immediate Assignment Procedure (SDCCH/ TCHF/TCHH) Counter Table 13-26 lists the counters in the Channel Assignment Success Measurement per TRX measurement unit. Table 13-26 Counters in the Channel Assignment Success Measurement per TRX measurement unit Number
Counter
1
R4110A: Successful Channel Assignments in Immediate Assignment Procedure (SDCCH)
2
R4117A: Successful Channel Assignments in Immediate Assignment Procedure (TCHF)
3
R4118A: Successful Channel Assignments in Immediate Assignment Procedure (TCHH)
Meaning The previous counters are used to measure the successful assignments of SDCCH, TCHF, or TCHH in the immediate assignment procedure. In the immediate assignment procedure, the BSC assigns channels after receiving the CHAN RQD message from the BTS. If the BSC successfully assigns the channel resources, the previous counters are measured based on different channel types before the BSC delivers the CHAN ACT message to the BTS. The previous counters are used to measure the times that the BSC radio resource management module successfully searches an idle SDCCH in the channel resource table after receiving the request for SDCCHs. The number of the times includes the number of successful preemptions of SDCCHs. Then the BSC sends the CHAN ACT message to the BTS to activate the SDCCH.
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Trigger Point As shown at point A in Figure 13-6, the previous counters are measured before the BSC sends the CHAN ACT message to the BTS if the following conditions are met: z
The BSC receives the CHAN RQD message.
z
The requested channels are successfully assigned.
In the immediate assignment procedure, the previous counters are measured if the BSC radio resource management module successfully searches or preempts an idle SDCCH in the channel resource table. Figure 13-6 Channel assignment in the immediate assignment procedure MS
BTS
BSC
CHAN REQ CHAN RQD A CHAN ACT CHAN ACT ACK IMM ASS CMD IMM ASS CMD SABM UA EST IND
Formula None.
13.8.3 Successful Channel Assignments in Assignment Procedure (TCHF/TCHH) Counter Table 13-27 lists the counters in the Successful Channel Assignments in Assignment Procedure (TCHF/TCHH) measurement unit. Table 13-27 Counters in the Successful Channel Assignments in Assignment Procedure (TCHF/TCHH) measurement unit Number
Counter
1
R4117B: Successful Channel Assignments in Assignment Procedure (TCHF)
2
R4118B: Successful Channel Assignments in Assignment Procedure (TCHH)
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Meaning In the TCH assignment procedure, the MSC sends the ASS REQ message to the BSC. The message carries the information about the channel type in this assignment and about the voice version of this assignment. The BSC assigns channels based on the current resource configurations. The previous counters are used to measure the times that the BSC radio resource management module successfully searches the idle TCHFs or TCHHs in the channel resource table after receiving the request for TCHFs or TCHHs. The number of the times includes the number of successful preemptions of TCHFs or TCHHs. Then the BSC sends the CHAN ACT message to the BTS to activate the TCH.
Trigger Point In the assignment procedure, the previous counters are measured based on the types of the assigned channels in either of the following cases: z
The BSC successfully assigns or preempts available TCHs.
z
The channels are successfully assigned after direct retry in the BSC.
Formula None.
13.8.4 Successful Channel Assignments in Internal Intra-Cell Handover Procedure (SDCCH/TCHF/TCHH) Counter Table 13-28 lists the counters in the Successful Channel Assignments in Internal Intra-Cell Handover Procedure (SDCCH/TCHF/TCHH). Table 13-28 Counters in the Successful Channel Assignments in Internal Intra-Cell Handover Procedure (SDCCH/TCHF/TCHH) Number
Counter
1
R4110C: Successful Channel Assignments in Internal Intra-Cell Handover Procedure (SDCCH)
2
R4117C: Successful Channel Assignments in Internal Intra-Cell Handover Procedure (TCHF)
3
R4118C: Successful Channel Assignments in Internal Intra-Cell Handover Procedure (TCHH)
Meaning In the internal intra-cell handover procedure during which the MS is handed over between different channels in the service cell, the BSC determines the channel type of this handover according to following items:
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z
Handover type
z
Supporting capability of the circuit pool where the A interface is located
z
Type of the channel that is seized by the call
z
Channel rate and channel type requested by the MSC during the initial establishment of the call
The previous counters are measured after the BSC successfully assigns the channels.
Trigger Point In the internal intra-cell handover procedure, the BSC successfully assigns the corresponding channels after the request for the assignment of SDCCH, TCHF, or TCHH. In this case, the previous counters are measured based on the channel type.
Formula None.
13.8.5 Successful Channel Assignments in Incoming Internal Inter-Cell Handover Procedure (SDCCH/TCHF/TCHH) Counter Table 13-29 lists the counters in the Successful Channel Assignments in Incoming Internal Inter-Cell Handover Procedure (SDCCH/TCHF/TCHH) measurement unit. Table 13-29 Counters in the Successful Channel Assignments in Incoming Internal Inter-Cell Handover Procedure (SDCCH/TCHF/TCHH) measurement unit Number
Counter
1
R4110D: Successful Channel Assignments in Incoming Internal Inter-Cell Handover Procedure (SDCCH)
2
R4117D: Successful Channel Assignments in Incoming Internal Inter-Cell Handover Procedure (TCHF)
3
R4118D: Successful Channel Assignments in Incoming Internal Inter-Cell Handover Procedure (TCHH)
Meaning In the incoming internal inter-cell handover procedure during which the MS is handed over between different channels in the service cell, the BSC determines the channel type of this handover according to following items: z
Handover type
z
Supporting capability of the circuit pool where the A interface is located
z
Type of the channel that is seized by the call
z
Channel rate and channel type requested by the MSC during the initial establishment of the call
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The previous counters are measured after the BSC successfully assigns the corresponding channels.
Trigger Point In the incoming internal inter-cell handover procedure, the BSC successfully assigns the corresponding channels after the request for the assignment of SDCCH, TCHF, or TCHH. In this case, the previous counters are measured based on the channel type.
Formula None.
13.8.6 Successful Channel Assignments in Incoming External Inter-Cell Handover Procedure (SDCCH/ TCHF/TCHH) Counter Table 13-30 lists the counters in the Successful Channel Assignments in Incoming External Inter-Cell Handover Procedure (SDCCH/ TCHF/TCHH) measurement unit. Table 13-30 Counters in the Successful Channel Assignments in Incoming External Inter-Cell Handover Procedure (SDCCH/ TCHF/TCHH) measurement unit Number
Counter
1
R4110E: Successful Channel Assignments in Incoming External Inter-Cell Handover Procedure (SDCCH)
2
R4117E: Successful Channel Assignments in Incoming External Inter-Cell Handover Procedure (TCHF)
3
R4118E: Successful Channel Assignments in Incoming External Inter-Cell Handover Procedure (TCHH)
Meaning In the incoming external inter-cell handover procedure during which the MS is handed over between different channels in the service cell, the BSC determines the channel type of this handover according to following items: z
Handover type
z
Supporting capability of the circuit pool where the A interface is located
z
Type of the channel that is seized by the call
z
Channel rate and channel type requested by the MSC during the initial establishment of the call
The previous counters are measured after the BSC successfully assigns the corresponding channels.
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Trigger Point In the incoming external inter-cell handover procedure, the service cell receives the HO REQ message containing the request for the assignment of SDCCH, TCHF, or TCHH. After the BSC successfully assigns the corresponding channels, the previous counters are measured based on the channel type.
Formula None.
13.8.7 Successful Channel Assignments (SDCCH) Counter CR4110: Successful Channel Assignments (SDCCH)
Meaning After the BSC successfully assigns SDCCHs, this counter is measured in the following procedures: z
Immediate assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
Trigger Point None.
Formula Successful Channel Assignments (SDCCH) = [Successful Channel Assignments in Immediate Assignment Procedure (SDCCH)]+ [Successful Channel Assignments in Internal Intra-Cell Handover Procedure (SDCCH)]+ [Successful Channel Assignments in Incoming Internal Inter-Cell Handover Procedure (SDCCH)]+ [Successful Channel Assignments in Incoming External Inter-Cell Handover Procedure (SDCCH)]
13.8.8 Successful Channel Assignments (TCHF) Counter CR4117: Successful Channel Assignments (TCHF)
Meaning After the BSC successfully assigns TCHFs, this counter is measured in the following procedures: z
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Assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
Trigger Point None.
Formula Successful Channel Assignments (TCHF) = [Successful Channel Assignments in Immediate Assignment Procedure (TCHF)]+ [Successful Channel Assignments During Assignment (TCHF)]+ [Successful Channel Assignments in Internal Intra-Cell Handover Procedure (TCHF)]+ [Successful Channel Assignments in Incoming Internal Inter-Cell Handover Procedure (TCHF)]+ [Successful Channel Assignments in Incoming External Inter-Cell Handover Procedure (TCHF)]
13.8.9 Successful Channel Assignments (TCHH) Counter CR4118: Successful Channel Assignments (TCHH)
Meaning After the BSC successfully assigns TCHHs, this counter is measured in the following procedures: z
Immediate assignment
z
Assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
Trigger Point None.
Formula Successful Channel Assignments (TCHH) = [Successful Channel Assignments in the Immediate Assignment Procedure (TCHH)]+ [Successful Channel Assignments in the Assignment Procedure (TCHH)]+
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[Successful Channel Assignments in the Internal Intra-Cell Handover Procedure (TCHH)]+ [Successful Channel Assignments in Incoming Internal Inter-Cell Handover Procedure (TCHH)]+ [Successful Channel Assignments in Incoming External Inter-Cell Handover Procedure (TCHH)]
13.8.10 Successful Channel Assignments (TCH) Counter CR4119: Successful Channel Assignments (TCH)
Meaning After the BSC successfully assigns TCHs, this counter is measured in the following procedures: z
Immediate assignment
z
Assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
Trigger Point None.
Formula Successful Channel Assignments (TCH) = [Successful Channel Assignments (TCHF)] + [Successful Channel Assignments (TCHH)]
13.9 Channel Assignment Failure Measurement per Cell 13.9.1 Overview The Channel Assignment Failure Measurement per Cell measurement unit is used to measure the failures when the BSC assigns SDCCHs, TCHFs, or TCHHs in the following procedures: z
Immediate assignment
z
Assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
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Table 13-31 lists the classification of the counters in the Channel Assignment Failure Measurement per Cell measurement unit. Table 13-31 Classification of the counters in the Channel Assignment Failure Measurement per Cell measurement unit
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Counter Classification
Section
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (SDCCH)
13.9.2
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (TCHF)
13.9.3
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (TCHH)
13.9.4
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Assignment Procedure (TCHF/TCHH)
13.9.5
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (SDCCH)
13.9.6
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (TCHF/TCHH)
13.9.7
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (SDCCH)
13.9.8
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (TCHF/TCHH)
13.9.9
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (SDCCH)
13.9.10
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (TCHF/TCHH)
13.9.11
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (SDCCH)
13.9.12
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCHF)
13.9.13
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCHH)
13.9.14
Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCH)
13.9.15
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13.9.2 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (SDCCH) Counter R3120A: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (SDCCH)
Meaning This counter is used to measure the channel assignment failures due to busy or unconfigured channels when the BSC assigns the SDCCHs in the immediate assignment procedure.
Trigger Point In the immediate assignment procedure, this counter is measured in either of the following cases: z
z
The assignment fails when the SDCCH assignment is requested in the following mechanisms: −
SDCCH preferred, and then TCHF
−
SDCCH preferred, and then TCHF or TCHH
−
TCHF preferred, and then SDCCH
−
TCHF or TCHH preferred, and then SDCCH
The preferential selection of SDCCH succeeds but the channel is not SDCCH.
Formula None.
13.9.3 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (TCHF) Counter R3127A: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (TCHF)
Meaning This counter is used to measure the channel assignment failures due to busy or unconfigured channels when the BSC assigns the TCHFs in the immediate assignment procedure.
Trigger Point In the immediate assignment procedure, this counter is measured in either of the following cases:
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z
The assignment fails when the TCHF assignment is requested in the following mechanisms: −
SDCCH preferred, and then TCHF
−
SDCCH preferred, and then TCHF or TCHH
−
TCHF preferred, and then SDCCH
−
TCHF or TCHH preferred, and then SDCCH
The preferential selection of TCHF succeeds but the channel is not TCHF.
Formula None.
13.9.4 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (TCHH) Counter R3128A: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (TCHH)
Meaning This counter is used to measure the channel assignment failures due to busy or unconfigured channels when the BSC assigns the TCHHs in the immediate assignment procedure.
Trigger Point In the immediate assignment procedure, this counter is measured in either of the following cases: z
z
The assignment fails when the assignment of TCHH, TCHF or TCHH is requested in the following mechanisms: −
SDCCH preferred, and then TCHF or TCHH
−
TCHF or TCHH preferred, and then SDCCH
The preferential selection of TCHH succeeds but the channel is not TCHH.
Formula None.
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13.9.5 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Assignment Procedure (TCHF/TCHH) Counter Table 13-32 lists the counters in the Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Assignment Procedure (TCHF/TCHH) measurement unit. Table 13-32 Counters in the Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Assignment Procedure (TCHF/TCHH) measurement unit Number
Counter
1
R3127B: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Assignment Procedure (TCHF)
2
R3128B: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Assignment Procedure (TCHH)
Meaning The previous counters are used to measure the channel assignment failures due to busy or unconfigured channels when the BSC assigns the TCHFs or TCHHs in the assignment procedure.
Trigger Point In the assignment procedure, this counter is measured in either of the following cases: z
z
The assignment fails when the assignment of TCHF or TCHH is requested in the following mechanisms: −
TCHF preferred
−
TCHH preferred
The assignment succeeds but the channel is not the requested one.
Formula None.
13.9.6 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (SDCCH) Counter R3120C: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (SDCCH)
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Meaning This counter is used to measure the channel assignment failures due to busy or unconfigured channels when the BSC assigns the SDCCHs or TCHHs in the internal intra-cell handover procedure.
Trigger Point In the internal intra-cell handover procedure, this counter is measured in either of the following cases: z
z
The assignment fails when the SDCCH assignment is requested in the following mechanisms: −
SDCCH preferred, and then TCHF
−
TCHF preferred, and then SDCCH
The preferential selection of SDCCH succeeds but the channel is not SDCCH.
Formula None.
13.9.7 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (TCHF/TCHH) Counter Table 13-33 lists the counters in the Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (TCHF/TCHH) measurement unit. Table 13-33 Counters in the Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (TCHF/TCHH) measurement unit Number
Counter
1
R3127C: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (TCHF)
2
R3128C: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (TCHH)
Meaning The previous counters are used to measure the channel assignment failures due to busy or unconfigured channels when the BSC assigns the TCHFs or TCHHs in the internal intra-cell handover procedure.
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Trigger Point In the internal intra-cell handover procedure, this counter is measured in either of the following cases: z
z
The assignment fails when the assignment of TCHF, TCHH, TCHF or TCHH is requested in the following mechanisms: −
TCHF preferred
−
TCHH preferred
The assignment succeeds but the channel is not the requested one.
Formula None.
13.9.8 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (SDCCH) Counter R3120D: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (SDCCH)
Meaning This counter is used to measure the channel assignment failures due to busy or unconfigured channels when the BSC assigns the SDCCHs in the incoming internal inter-cell handover procedure.
Trigger Point In the incoming internal inter-cell handover procedure, this counter is measured in either of the following cases: z
z
The assignment fails when the SDCCH assignment is requested in the following mechanisms: −
SDCCH preferred, and then TCHF
−
TCHF preferred, and then SDCCH
The preferential selection of SDCCH succeeds but the channel is not SDCCH.
Formula None.
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13.9.9 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (TCHF/ TCHH) Counter Table 13-34 lists the counters in the Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (TCHF/ TCHH) measurement unit. Table 13-34 Counters in the Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (TCHF/ TCHH) measurement unit Number
Counter
1
R3127D: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (TCHF)
2
R3128D: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (TCHH)
Meaning The previous counters are used to measure the channel assignment failures due to busy or unconfigured channels when the BSC assigns the TCHFs or TCHHs in the incoming internal inter-cell handover procedure.
Trigger Point In the incoming internal inter-cell handover procedure, this counter is measured in either of the following cases: z
z
The assignment fails when the assignment of TCHF, TCHH, TCHF or TCHH is requested in the following mechanisms: −
TCHF preferred
−
TCHH preferred
The assignment succeeds but the channel is not the requested one.
Formula None.
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13.9.10 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (SDCCH) Counter R3120E: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (SDCCH)
Meaning This counter is used to measure the channel assignment failures due to busy or unconfigured channels when the BSC assigns the SDCCHs in the incoming external inter-cell handover procedure.
Trigger Point In the incoming external inter-cell handover procedure, this counter is measured in either of the following cases: z
z
The assignment fails when the SDCCH assignment is requested in the following mechanisms: −
SDCCH preferred, and then TCHF
−
TCHF preferred, and then SDCCH
The preferential selection of SDCCH succeeds but the channel is not SDCCH.
Formula None.
13.9.11 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (TCHF/ TCHH) Counter Table 13-35 lists the counters in the Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (TCHF/ TCHH) measurement unit. Table 13-35 Counters in the Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (TCHF/ TCHH) measurement unit Number
Counter
1
R3127E: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (TCHF)
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Number
Counter
2
R3128E: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (TCHH)
Meaning The previous counters are used to measure the times that there are no corresponding channels available for assignment in the incoming external inter-cell handover procedure when the requested channel type is of the following: z
TCHF or TCHH
z
Channel whose preferential selection is TCHF or TCHH
Trigger Point In the incoming external inter-cell handover procedure, this counter is measured in either of the following cases: z
z
The assignment fails when the requested channel type is of the following: −
TCHF or TCHH
−
Channel whose type is related to TCHF or TCHH
−
Channel whose preferential selection is TCHF or TCHH
The assignment succeeds but the channel is not the requested one.
Formula None.
13.9.12 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (SDCCH) Counter CR3120: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (SDCCH)
Meaning This counter is used to measure the channel assignment failures due to busy or unconfigured channels when the BSC assigns the SDCCHs in the following procedures:
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z
Immediate assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
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Trigger Point None.
Formula Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (SDCCH) = [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (SDCCH)] + [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (SDCCH)] + [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (SDCCH)] + [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (SDCCH)]
13.9.13 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCHF) Counter CR3127: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCHF)
Meaning This counter is used to measure the channel assignment failures due to busy or unconfigured channels when the BSC assigns the TCHFs in the following procedures: z
Immediate assignment
z
assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
Trigger Point None.
Formula Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCHF) = [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (TCHF)] + [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Assignment Procedure (TCHF)] + [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (TCHF)] +
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[Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (TCHF)] + [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (TCHF)]
13.9.14 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCHH) Counter CR3128: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCHH)
Meaning This counter is used to measure the channel assignment failures due to busy or unconfigured channels when the BSC assigns the TCHHs in the following procedures: z
Immediate assignment
z
Assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
Trigger Point None.
Formula Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCHH) = [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Immediate Assignment Procedure (TCHH)] + [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Assignment Procedure (TCHH)] + [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Internal Intra-Cell Handover Procedure (TCHH)] + [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming Internal Inter-Cell Handover Procedure (TCHH)] + [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) in Incoming External Inter-Cell Handover Procedure (TCHH)]
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13.9.15 Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCH) Counter CR3129: Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCH)
Meaning This counter is used to measure the channel assignment failures due to busy or unconfigured channels when the BSC assigns the TCHs in the following procedures: z
Immediate assignment
z
Assignment
z
Internal intra-cell handover
z
Incoming internal inter-cell handover
z
Incoming external inter-cell handover
Trigger Point None.
Formula Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCH) = [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCHF)] + [Channel Assignment Failures (All Channels Busy or Channels Unconfigured) (TCHH)]
13.10 Channel Assignment Concentric Cell Measurement per Cell 13.10.1 Overview When the concentric cell function is used, the TRXs of the overlaid subcell and underlaid subcell should be properly configured to achieve the following results: z
In the wide coverage area, the underlaid subcell provides remote coverage and the overlaid subcell bears the traffic.
z
In the dense multiplexing area, the underlaid subcell uses the less multiplexed TRX frequency (BCCH) and the overlaid subcell uses the dense multiplexed TRX frequency.
With scientific configuration of the parameters related to overlaid and underlaid power, the system interference can be lowered to the greatest extent. Channel Assignment Concentric Cell Measurement per Cell is used to measure the counters such as channel assignment requests and overflows. These counters help to analyze the configuration of channel resources and the settings of handover.
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Table 13-36 lists the counter classification of Channel Assignment Concentric Cell Measurement per Cell. Table 13-36 Counter classification of Channel Assignment Concentric Cell Measurement per Cell Counter Classification
Section
Channel Assignment Requests of Concentric Cell
13.10.2
TCH Assignment Requests of Concentric Cell
13.10.3
Channel Assignment Requests of Concentric Cell in Incoming Internal InterCell Handover Procedure (TCH)
13.10.4
Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (TCH)
13.10.5
Channel Assignment Overflows (TCH) (Underlaid Subcell Preferred or Overlaid Subcell Preferred)
13.10.6
Channel Assignment Overflows in Concentric Cell in Incoming Internal Inter-Cell Handover Procedure (TCH)
13.10.7
Channel Assignment Overflows in Concentric Cell in Incoming External Inter-Cell Handover Procedure (TCH)
13.10.8
Channel Assignment Overflows in Concentric Cell (TCH)
13.10.9
Channel Assignment Overflows in Concentric Cell (SDCCH)
13.10.10
Channel Assignment Overflows in Concentric Cell (TCHF)
13.10.11
Channel Assignment Overflows in Concentric Cell (TCHH)
13.10.12
Failed Handovers from Underlaid Subcell to Overlaid Subcell due to Busy Channels in Overlaid Subcell
13.10.13
Failed Handovers from Overlaid Subcell to Underlaid Subcell due to Busy Channels in Underlaid Subcell
13.10.14
13.10.2 Channel Assignment Requests of Concentric Cell Counter Table 13-37 lists the counters of Channel Assignment Requests of Concentric Cell. Table 13-37 Channel Assignment Requests of Concentric Cell
13-70
Number
Counter
1
R3200: Channel Assignment Requests (Underlaid Subcell Only)
2
R3201: Channel Assignment Requests (Overlaid Subcell Only)
3
R3202: Channel Assignment Requests (Underlaid Subcell Preferred)
4
R3203: Channel Assignment Requests (Overlaid Subcell Preferred)
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Meaning The counters measure the number of channel assignment requests of the concentric cell. The measurement is based on the requirement for the attributes of the concentric cell. The attributes consist of the following: z
Underlaid subcell only
z
Overlaid subcell only
z
Underlaid subcell preferred
z
Overlaid subcell preferred
Trigger Point The measurement is triggered when a concentric cell requests for a channel. The measurement is based on requirement for the attributes of the concentric cell.
Formula None.
13.10.3 TCH Assignment Requests of Concentric Cell Counter Table 13-38 lists the counters of TCH Assignment Requests of Concentric Cell. Table 13-38 Counters of TCH Assignment Requests of Concentric Cell Number
Counter
1
R3202B: TCH Assignment Requests (Underlaid Subcell Preferred)
2
R3203B: TCH Assignment Requests (Overlaid Subcell Preferred)
Meaning The counters measure the number of TCH assignment requests of a concentric cell in the assignment procedure. The measurement is based on the requirement for the attributes of the concentric cell. The counters show the utilization of the underlaid subcell and overlaid subcell of a concentric cell. If the ratio of assignment overflows to assignment requests is high, the underlaid subcell or the overlaid subcell is congested. The traffic load of the underlaid subcell and that of the overlaid subcell should be regulated.
Trigger Point In the assignment procedure, the measurement is triggered when a concentric cell requests for a TCH. The measurement is based on the requirement for the attributes of the concentric cell.
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Formula None.
13.10.4 Assignment Requests of Concentric Cell in Incoming Internal Inter-Cell Handover Procedure (TCH) Counter Table 13-39 lists the counters of Channel Assignment Requests of Concentric Cell in Incoming Internal Inter-Cell Handover Procedure (TCH). Table 13-39 Counters of Channel Assignment Requests of Concentric Cell in Incoming Internal Inter-Cell Handover Procedure (TCH ) Number
Counter
1
R3202D: Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (TCH) (Underlaid Subcell Preferred)
2
R3203D: Channel Assignment Requests in Incoming Internal Inter-Cell Handover Procedure (TCH) (Overlaid Subcell Preferred)
Meaning The counters measure the number of TCH assignment requests of a concentric cell in the incoming internal inter-cell handover procedure. The measurement is based on the requirement for the attributes of the concentric cell. The counters show the utilization of the underlaid subcell and overlaid subcell of a concentric cell. If the ratio of assignment overflows to assignment requests is high, the underlaid subcell or the overlaid subcell is congested. The traffic load of the underlaid subcell and that of the overlaid subcell should be regulated.
Trigger Point In the incoming internal inter-cell handover procedure, the measurement is triggered when a concentric cell requests for a TCH. The measurement is based on the requirement for the attributes of the concentric cell.
Formula None.
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13.10.5 Channel Assignment Requests in Incoming External InterCell Handover Procedure (TCH) Counter Table 13-40 lists the counters of Channel Assignment Requests in Incoming External InterCell Handover Procedure (TCH). Table 13-40 Counters of Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (TCH) Number
Counter
1
R3202E: Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (TCH) (Underlaid Subcell Preferred)
2
R3203E: Channel Assignment Requests in Incoming External Inter-Cell Handover Procedure (TCH) (Overlaid Subcell Preferred)
Meaning The counters measure the number of TCH assignment requests of a concentric cell in the incoming external inter-cell handover procedure. The measurement is based on the requirement for the attributes of the concentric cell. The counters show the utilization of the underlaid subcell and overlaid subcell of a concentric cell. If the ratio of assignment overflows to assignment requests is high, the underlaid subcell or the overlaid subcell is congested. The traffic load of the underlaid subcell and that of the overlaid subcell should be regulated.
Trigger Point In the incoming external inter-cell handover procedure, the measurement is triggered when a concentric cell requests for a TCH. The measurement is based on the requirement for the attributes of the concentric cell.
Formula None.
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13.10.6 Channel Assignment Overflows (TCH) (Underlaid Subcell Preferred or Overlaid Subcell Preferred) Counter Table 13-41 lists the counters of Channel Assignment Overflows (TCH) (Underlaid Subcell Preferred or Overlaid Subcell Preferred). Table 13-41 Counters of Channel Assignment Overflows (TCH) (Underlaid Subcell Preferred or Overlaid Subcell Preferred) Number
Counter
1
R3222B: Channel Assignment Overflows (TCH) (Underlaid Subcell Preferred)
2
R3223B: Channel Assignment Overflows (TCH) (Overlaid Subcell Preferred)
Meaning In the TCH assignment procedure, the counters measure the number of TCH assignment overflows when the assignment fails or the channel with the concentric attribute inconsistent with the requirement is assigned. The measurement is based on the requirement for the attributes of the concentric cell.
Trigger Point In the TCH assignment procedure, the measurement is triggered when the assignment fails or when the channel with the concentric attributes inconsistent with the requirement is assigned. The measurement is based on the requirement for the attributes of the concentric cell.
Formula None.
13.10.7 Channel Assignment Overflows in Concentric Cell in Incoming Internal Inter-Cell Handover Procedure (TCH) Counter Table 13-42 lists the counters of Channel Assignment Overflows in Concentric Cell in Incoming Internal Inter-Cell Handover Procedure (TCH). Table 13-42 Counters of Channel Assignment Overflows in Concentric Cell in Incoming Internal Inter-Cell Handover Procedure (TCH)
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Number
Counter
1
R3222D: Channel Assignment Overflows in Incoming Internal Inter-Cell Handover Procedure (TCH) (Underlaid Subcell Preferred)
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Number
Counter
2
R3223D: Channel Assignment Overflows in Incoming Internal Inter-Cell Handover Procedure (TCH) (Overlaid Subcell Preferred)
Meaning In the incoming internal inter-cell handover procedure, the counters measure the number of TCH assignment overflows when the assignment fails or the channel with the concentric attribute inconsistent with the requirement is assigned. The measurement is based on the requirement for the attributes of the concentric cell.
Trigger Point In the incoming internal inter-cell handover procedure, the measurement is triggered when the assignment fails or when the channel with the concentric attributes inconsistent with the requirement is assigned. The measurement is based on the requirement for the attributes of the concentric cell.
Formula None.
13.10.8 Channel Assignment Overflows in Concentric Cell in Incoming External Inter-Cell Handover Procedure (TCH) Counter Table 13-43 lists the counters of Channel Assignment Overflows in Concentric Cell in Incoming External Inter-Cell Handover Procedure (TCH). Table 13-43 Counters of Channel Assignment Overflows in Concentric Cell in Incoming External Inter-Cell Handover Procedure (TCH) Number
Counter
1
R3222E: Channel Assignment Overflows in Incoming External Inter-Cell Handover Procedure (TCH) (Underlaid Subcell Preferred)
2
R3223E: Channel Assignment Overflows in Incoming External Inter-Cell Handover Procedure (TCH) (Overlaid Subcell Preferred)
Meaning In the incoming external inter-cell handover procedure, the counters measure the number of TCH assignment overflows when the assignment fails or the channel with the concentric attribute inconsistent with the requirement is assigned. The measurement is based on the requirement for the attributes of the concentric cell.
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Trigger Point In the incoming external inter-cell handover procedure, the measurement is triggered when the assignment fails or when the channel with the concentric attributes inconsistent with the requirement is assigned. The measurement is based on the requirement for the attributes of the concentric cell.
Formula None.
13.10.9 Channel Assignment Overflows in Concentric Cell (TCH) Counter Table 13-44 lists the counters of Channel Assignment Overflows in Concentric Cell (TCH). Table 13-44 Counters of Channel Assignment Overflows in Concentric Cell (TCH) Number
Counter
1
R3225J: Channel Assignment Overflows in Underlaid Subcell (TCH)
2
R3224J: Channel Assignment Overflows in Overlaid Subcell (TCH)
Meaning When the BSC needs to assign an MS a TCH in the assignment, immediate assignment, internal handover, or external handover procedure, it fills the concentric attribute in the channel request based on the data already configured, and then initiates the channel assignment procedure. The counters measure the number of times the underlaid subcell or the overlaid subcell has no idle TCH to be assigned.
Trigger Point In the TCH assignment, the measurement is triggered when the underlaid subcell or the overlaid subcell has no idle TCH to be assigned.
Formula None.
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13.10.10 Channel Assignment Overflows in Concentric Cell (SDCCH) Counter Table 13-45 lists the counters of Channel Assignment Overflows in Concentric Cell (SDCCH). Table 13-45 Counters of Channel Assignment Overflows in Concentric Cell (SDCCH) Number
Counter
1
R3225G: Channel Assignment Overflows in Underlaid Subcell (SDCCH)
2
R3224G: Channel Assignment Overflows in Overlaid Subcell (SDCCH)
Meaning When the BSC receives an SDCCH request, it fills the concentric attribute in the channel request based on the data already configured, and then initiates the channel assignment procedure. The counters measure the number of times the underlaid subcell or the overlaid subcell has no idle SDCCH to be assigned.
Trigger Point In the SDCCH assignment, the measurement is triggered when the underlaid subcell or the overlaid subcell has no idle SDCCH to be assigned.
Formula None.
13.10.11 Channel Assignment Overflows in Concentric Cell (TCHF) Counter Table 13-46 lists the counters of Channel Assignment Overflows in Concentric Cell (TCHF). Table 13-46 Counters of Channel Assignment Overflows in Concentric Cell (TCHF) Number
Counter
1
R3225H: Channel Assignment Overflows in Underlaid Subcell (TCHF)
2
R3224H: Channel Assignment Overflows in Overlaid Subcell (TCHF)
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Meaning If a concentric cell requests for a TCHF in the underlaid subcell or the overlaid subcell, but the assigned channel does not meet the requirement or the assignment fails, the BSC measures the number of channel assignment overflows under the related conditions.
Trigger Point If a concentric cell requests for a TCHF in the underlaid subcell or the overlaid subcell, the measurement is triggered when the assigned channel does not meet the requirement or when the assignment fails.
Formula None.
13.10.12 Channel Assignment Overflows in Concentric Cell (TCHH) Counter Table 13-47 lists the counters of Channel Assignment Overflows in Concentric Cell (TCHH). Table 13-47 Counters of Channel Assignment Overflows in Concentric Cell (TCHH) Number
Counter
1
R3225I: Channel Assignment Overflows in Underlaid Subcell (TCHH)
2
R3224I: Channel Assignment Overflows in Overlaid Subcell (TCHH)
Meaning If a concentric cell requests for a TCHH in the underlaid subcell or the overlaid subcell, but the assigned channel does not meet the requirement or the assignment fails, the BSC measures the number of channel assignment overflows under the related conditions.
Trigger Point The measurement is triggered when the assigned channel does not meet the requirement or when the assignment fails.
Formula None.
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13.10.13 Failed Handovers from Underlaid Subcell to Overlaid Subcell due to Busy Channels in Overlaid Subcell Counter R3224K: Failed Handovers from Underlaid Subcell to Overlaid Subcell due to Busy Channels in Overlaid Subcell
Meaning In the handover from the underlaid subcell to the overlaid subcell, the counter measures the number of failed handovers because the overlaid subcell has no idle channel available. The counter helps to determine whether the configuration of the TCHs in the overlaid subcell is appropriate or not. If the result of this measurement is too high, the traffic load of the underlaid subcell and that of the overlaid subcell should be regulated.
Trigger Point In the handover from the underlaid subcell to the overlaid subcell, the measurement is triggered when the BSC detects that the overlaid subcell has no channel to be assigned.
Formula None.
13.10.14 Failed Handovers from Overlaid Subcell to Underlaid Subcell due to Busy Channels in Underlaid Subcell Counter R3225K: Failed Handovers from Overlaid Subcell to Underlaid Subcell due to Busy Channels in Underlaid Subcell
Meaning In the handover from the overlaid subcell to the underlaid subcell, the counter measures the number of failed handovers because the underlaid subcell has no idle channel available. If the result of this measurement is too high, the traffic load of the underlaid subcell and that of the overlaid subcell should be regulated.
Trigger Point In the handover from the overlaid subcell to the underlaid subcell, the measurement is triggered when the BSC detects that the underlaid subcell has no channel to be assigned.
Formula None.
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13.11 Channel Assignment Queue Measurement per Cell 13.11.1 Overview Channel Assignment Queue Measurement per Cell is used to measure the queue related counters in the Channel Assignment procedure. Table 13-48 lists the measurement units of Channel Assignment Queue Measurement per Cell. Table 13-48 Measurement units of Channel Assignment Queue Measurement per Cell Counter Classification
Section
Maximum Queue Length
13.11.2
Total Queue Length
13.11.3
Sampled Queuings
13.11.4
Total Queuing Duration
13.11.5
Queuings in Channel Assignment Procedure
13.11.6
Mean Queue Length
13.11.7
Mean Queuing Duration
13.11.8
Failed Queuings
13.11.9
13.11.2 Maximum Queue Length Counter R3130: Maximum Queue Length
Meaning This counter is used to measure the maximum length of the queue in a cell. It shows the busy state of the services in a cell in busy hours. The BSC compares the peak values of queues during channel assignment at the sampling point and then records the values.
Trigger Point The BSC periodically obtains the length of the queue in the measured cell at the sampling point in a granularity period. If the obtained length is greater than the latest maximum queue length saved in the same granularity period, the BSC uses the obtained value to overwrite the latest value.
Formula None.
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13.11.3 Total Queue Length Counter R3131: Total Queue Length
Meaning This counter is used to measure the accumulated length of the queue in the channel assignment procedure in a BSC cell in a granularity period.
Trigger Point The BSC accumulates all the sampled values in a granularity period.
Formula None.
13.11.4 Sampled Queuings Counter R3132: Sampled Queuings
Meaning This counter is used to measure the number of attempts to measure the length of a queue in a BSC cell in a granularity period.
Trigger Point This counter is measured once the BSC measures the length of a queue at the sampling point in the cell.
Formula None.
13.11.5 Total Queuing Duration Counter R3133: Total Queuing Duration
Meaning This counter is used to measure the accumulated queuing duration (in seconds) of a call in a granularity period.
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Trigger Point The BSC accumulates all the sampled values in a granularity period.
Formula None.
13.11.6 Channel Assignment Queue Measurement Counter Table 13-49 lists the counters of Channel Assignment Queue Measurement. Table 13-49 Counters of Channel Assignment Queue Measurement Number
Counter
1
R3134: Failed Queuing Attempts due to Queue Overflow
2
R3135: Queuing Requests
3
R3136: Failed Queuings (Preemption)
4
R3137: Failed Queuings (Queuing Timer Expired)
5
R3138: Failed Queuings (Dynamic Adjustment Timed Out)
Meaning In the assignment procedure or incoming-BSC handover procedure, if the MSC requests a TCH, but the BSC detects that there is no idle TCH during channel assignment, and the BSC supports queuing, then the calls shall be queued. However, the number of calls to be queued by the BSC is limited. If the queue is full and the queuing fails, the BSC measures counter R3134: Failed Queuing Attempts due to Queue Overflow. In the assignment procedure or incoming-BSC handover procedure, if the MSC requests a TCH, but the BSC detects that there is no idle TCH during channel assignment, and the BSC supports queuing, then the calls shall be queued. In this case, the BSC measures counter R3135: Queuing Requests. In the assignment procedure or incoming-BSC handover procedure, if the MSC requests a TCH, but the BSC detects that there is no idle TCH during channel assignment. If the calls support pre-emption and the BSC supports pre-emption, then the BSC shall pre-empt TCHs. If the pre-emption is successful and the BSC supports queuing, then the BSC initiates a queuing procedure and starts a timer to wait for an available TCH. If there is no idle TCH upon the timer expiry, the BSC measures counter R3136: Failed Queuings (Preemption). In the assignment procedure or incoming-BSC handover procedure, if the MSC requests a TCH, but the BSC detects that there is no idle TCH during channel assignment. If the BSC does not initiate a pre-emption procedure or dynamic channel conversion procedure but the BSC supports queuing, then the calls shall be queued for a TCH. At the same time, the BSC starts a timer to wait for an idle TCH. If there is no idle TCH upon the timer expiry, the BSC measures counter R3137: Failed Queuings (Queuing Timer Expired).
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In the assignment procedure or incoming-BSC handover procedure, the BSC initiates a dynamic channel conversion procedure if: z
The MSC requests a TCHF or TCHF, but the BSC detects that there is no idle TCHF or TCHF during the channel assignment
z
The BSC supports dynamic channel conversion and the conditions for dynamic channel conversion are met
If the BSC supports queuing, the BSC initiates a queuing procedure and starts a timer to wait for an idle TCHF or TCHH. If there is no idle TCHF or TCHH upon the timer expiry, the BSC measures counter R3138: Failed Queuings (Dynamic Adjustment Timed Out).
Trigger Point Counter R3134 is measured when the queue is full in the assignment procedure or incomingBSC handover procedure. Counter R3135 is measured when the BSC initiates a queuing for a TCH in the assignment procedure or incoming-BSC handover procedure. Counter R3136 is measured when there is no idle TCH upon the timer expiry even if the BSC initiates queuing and pre-emption procedures in the assignment procedure or incoming-BSC handover procedure. Counter R3136 is measured in the assignment procedure or incoming-BSC handover procedure in either of the following cases: z
The BSC does not initiate any pre-emption procedure or dynamic channel conversion procedure.
z
The BSC initiates a queuing procedure but there is no idle TCH upon the timer expiry.
Formula None.
13.11.7 Mean Queue Length Counter AR3131: Mean Queue Length
Meaning This counter is used to measure the mean length of a queue in a BSC cell in a granularity period.
Trigger Point None.
Formula Mean Queue Length = [Total Queue Length]/[Sampled Queuings]
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13.11.8 Mean Queuing Duration Counter AR3133: Mean Queuing Duration
Meaning This counter is used to measure the mean time of a call to queue for a TCH in a BSC cell in a granularity period.
Trigger Point None.
Formula Mean Queuing Duration = [Total Queuing Duration]/[Queuing Requests]
13.11.9 Failed Queuings Counter CR313C: Failed Queuings
Meaning This counter is used to measure the number of failed queuings due to various causes in a BSC cell in a granularity period.
Trigger Point None.
Formula Failed Queuings = [Failed Queuings (Pre-emption)] + [Failed Queuings (Queuing Timer Expired)] + [Failed Queuings (Dynamic Adjustment Timed Out)]
13.12 Channel Assignment GPRS Measurement per Cell 13.12.1 Overview The BSS supports two types of PDCHs: dynamic and static PDCHs. After the kickoff of a GPRS cell, the PCU obtains the right to assign static PDCHs.
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The BSC does not manage the assignment of the static PDCHs but performs basic maintenance of them. The BSC assigns the dynamic PDCHs for either circuit switched domain (CS) services or packet switched domain (PS) services. The BSC preferentially assigns PDCHs for CS services. If it detects that there is no idle TCH for CS services or predicts that the TCHs for CS services are insufficient, the BSC requests the PCU to forcibly release the already assigned dynamic PDCHs and uses them as TCHs. Channel Assignment GPRS Measurement per Cell is used to measure the number of requests from the BSC to the PCU for forcibly releasing TCHs and the number of successful requests. The two counters reflect the busy state of the CS services and the assignment of the channels assigned to CS services and PS services. Table 13-50 lists the counters of Channel Assignment GPRS Measurement per Cell. Table 13-50 Counters of Channel Assignment GPRS Measurement per Cell Number
Counter
1
R3140: Requests for TCH from the PCU
2
R3141: Successful Requests for TCH from the PCU
13.12.2 Requests for TCH from the PCU Counter R3140: Requests for TCH from the PCU
Meaning This counter is used to measure the number of requests sent from the BSC to the PCU for releasing the dynamic PDCHs.
Trigger Point This counter is measured when the BSC sends a request to the PCU for releasing the already assigned dynamic PDCHs in either of the following cases: z
The BSC detects that there are no enough idle TCHs for the CS services.
z
The BSC predicts that there are no enough idle TCHs for CS services.
Formula None.
13.12.3 Successful TCH Requests from the PCU Counter R3141: Successful TCH Requests from the PCU
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HUAWEI BSC6000 Base Station Controller Performance Counter Reference
Meaning This counter is used to measure the successful responses from the PCU to the requests for dynamic PDCH.
Trigger Point This counter is measured when the BSC receives a successful response to the TCH request from the PCU.
Formula None.
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Huawei Technologies Proprietary
Issue 02 (2007-02-06)
