Items
Tasks
Category
1
Cell Config. Data
CS
2
FP Audit
CS
3
NBR Audit
CS
CS
4
Timeslot Audit
CS PS CS/PS CS/PS PS CS
5
TRX Power
CS
Parameter ID LAC BCCH NCC NCCPERMIT HSN Plan BCCH Plan MAL Plan MAIO Plan Fix TCH Neighbors TSPRIORITY TSPWRRESERVE TsTurningOffEnable Main BCCH Static SDCCH Static PDTCH Dynamic SDCCH Dynamic PDTCH GPRSCHPRI TCH FR TCH HR PWRSPNR POWL POWT OPTL SDFLAG TCHAJFLAG PL8PSK RCVMD SNDMD CPS TSPWRRESERVE FREQREUSEMODE PAOPTILEVEL OUTHOPWROVERLOADTHRESHOLD INHOPWROVERLOADTHRESHOLD PL16QAM PL32QAM SIGCHANHOEN INRBSCSDHOEN DIRECTRYEN NODLMRHOEN TAHOEN INTERFHOEN RXQCKFALLHOEN BQHOEN OUTLOADHOENABLE FRINGEHOEN QUICKHOEN MSLEVSTRQPBGT QCKMVHOEN INNCELLEDGEHOEN LEVHOEN
PBGTHOEN CONHOEN AMRFULLTOHALFHOALLOW HOCTRLSWITCH AMRHALFTOFULLHOQUALALLOW HOCDCMINDWPWR HOCDCMINUPPWR _ EXPULRXLEV EXPDLRXLEV PBGTSTAT PBGTLAST PBGTMARGIN MSLEVSTRQPBGT PBGTHOEN
6
HO Algorithm
CS
INTERFHOEN RXQUAL1 RXQUAL2 RXQUAL3 RXQUAL4 RXQUAL5 RXQUAL6 RXQUAL7 RXQUAL8 RXQUAL9 RXQUAL10 RXQUAL11 RXQUAL12 RXLEVOff INTERFERELASTTIME INTERFERESTATTIME IBCAMAXINTFSRCNUM INTERPERIOD INTERFEREHOPENTIME DLINTERFLEVLIMIT DLINTERFQUALLIMIT UPINTERFQUALLIMIT UPINTERLEVLIMIT INTERPERIOD BQHOEN TIMEBQPUNISH SSBQPUNISH TCHDROPSTATDLQUAL TCHDROPSTATULQUAL CELLRXQUALWORSENRATIOTHRSH FRINGEHOEN ULEDGETHRES DLEDGETHRES EDGESTAT EDGELAST EDGESTAT1 EDGELAST1
INNCELLEDGEHOEN TAHOEN SSTAPUNISH TASTATTIME CELLWEAKCVGTALTH CELLOVERCVGTALTH MAXTA TIMETAPUNISH DIRECTRYEN DTLOADTHRED MINPWRLEVDIRTRY CDRTTRYFBDTHRES SYSFLOWLEV TRIGTHRES LOADACCTHRES LOADOFFSET LOADHOPERIOD LOADHOSTEP
7
Advance HO parameter
CS
QCKSTATCNT QCKTRUECNT QCKTIMETH MAXCNTNUM BANTIME CONTINTV SPEEDPUNISH KBIAS TIGHTBCCHRXQUALTHRES TIGHTBCCHHOLOADTHRES MAXRESEND T3105 OUTBSCLOADHOEN SDCCHWAITMREN SDCCHWAITMRTIMELEN ASSIGNBETTERCELLEN ABCWAITMAXTIME ABCUPQUALITY ABCDOWNQUALITY COBSCMSCADJEN INTRACELLHOEN LOADHOEN INFHHOSTAT INFHHOLAST HOTHRES LEVHOHYST TIGHTBCCHHOSTATTIME TIGHTBCCHHOLASTTIME ATCBHOEN BETTERCELLHOEN FULLTOHALFHODURATION FULLTOHALFHOPERIOD AMRFULLTOHALFHOPATHADJSTEP AMRFULLTOHALFHOATCBADJSTEP AMRFULLTOHALFHOPATHTHRESH
8
HO Basic parameter
CS
9
HO control parameter
CS
10
ADJC Level Parameter
CS
FULLTOHALFHOPATHOFFSET AMRFULLTOHALFHOATCBTHRESH FULLTOHALFHOATCBOFFSET AMRFULLTOHALFHOQUALTHRESH FULLTOHALFHOSTATTIME FULLTOHALFHOLASTTIME HALFTOFULLHODURATION AMRHALFTOFULLHOATCBTHRESH HALFTOFULLATCBOFFSET AMRHALFTOFULLHOPATHTHRESH HALFTOFULLHOPATHOFFSET AMRHALFTOFULLHOQUALTHRESH HALFTOFULLHOSTATTIME HALFTOFULLHOLASTTIME NOAMRFULLTOHALFTHRESH NOAMRFULLTOHALFHOPATHADJSTEP NOAMRFULLTOHALFHOATCBADJSTEP NOAMRFULLTOHALFHOPATHTHRESH NOAMRFULLTOHALFHOATCBTHRESH NOAMRFULLTOHALFHOQUALTHRESH NOAMRHALFTOFULLTHRESH NOAMRHALFTOFULLHOQUALALLOW NOAMRHALFTOFULLHOATCBTHRESH NOAMRHALFTOFULLHOPATHTHRESH NOAMRHALFTOFULLHOQUALTHRESH INTERRATOUTBSCHOEN INTERRATINBSCHOEN INTERRATIURGINBSCHOEN INTERRATCELLRESELEN PATHLOSSHOEN TCHHOMININTV SDHOMININTV CONTHOMININTV NEWURGHOMININTV PENALTYEN BTSMESRPTPREPROC PRIMMESPPT BSMSPWRLEV MRPREPROCFREQ EDGEADJSTATTIME EDGEADJLASTTIME LEVSTAT LEVLAST PBGTSTAT PBGTLAST BETTERCELLSTATTIME BETTERCELLLASTTIME HOSTATICTIME HOLASTTIME HCSSTATTIME HCSLASTTIME BQSTATTIME BQLASTTIME TASTATTIME TALASTTIME ULBQSTATTIME
10
ADJC Level Parameter
CS
11
CS - PC Algorithm
CS
12
PS - PC Algorithm
PS
ULBQLASTTIME INTERCELLHYST MINOFFSET PBGTMARGIN BQMARGIN INTELEVHOHYST DRHOLEVRANGE HOCDCMINDWPWR UPPCEN DNPCEN PWRCTRLSW FINESTEPPCALLOWED DLQHIGHTHRED DLQLOWTHRED DLSSLOWTHRED DLSSHIGHTHRED ULSSHIGHTHRED ULSSLOWTHRED ULQHIGHTHRED ULQLOWTHRED PWRBCDALLOWD DLLEVFILTLEN ULLEVFILTLEN ULQUAFILTLEN DLQUAFILTLEN GAMMA NAVGI PB PCMEASCHAN TAVGT TAVGW CONHOEN
13
Concentric Cells Settings
CS
OTOURECEIVETH UTOORECTH OLTOULHOALLOW ULTOOLHOALLOW OPTILEVTHRES TCHTRICBUSYOVERLAYTHR HRATESPT HRDLDTX HRULDTX NOAMRFULLTOHALFHOALLOW INTRACELLFHHOEN TCHBUSYTHRES INHOH2FTH INHOF2HTH
14
Full Rate/Half Rate
CS
DLQUALIMITAMRHR ULQUALIMITAMRHR WAITFORRELINDAMRHR AMRFULLTOHALFHOALLOW AMRFULLTOHALFHOTHRESH TIMEAMRFHPUNISH RECEIVEQUALTHRSHAMRHR INTRACELLFHHOEN
15
Timers
16
Penalty Timers
CS
CS
PS
17
AMR Codecs
CS
INHOH2FTH INHOF2HTH AMRHALFTOFULLHOTHRESH T200SACCHS ESTABINDTIMER IMM ASS A IF Creation Timer INTRABSCHOTIMER INTRACELLHOTIMER OUTBSCHOCMDTIMER ASSTIMER INBSCHOTIMER OUTBSCHOCLEARTIMER WAITFORRELIND DELAYSENDRFCHREL MSIPFAILINDDELAY IMMREJWAITINDTIMER WAITFORRELINDAMRFR WAITFORRELINDAMRHR TIQUEUINGTIMER TQHO WAITRESVCHANREFRESHTIMER Timer for UL Data Forward SPEEDPUNISHT HOPENALTYTIME TIMEBQPUNISH TIMETAPUNISH TIMEAMRFHPUNISH LOADHOPENTIME TIMEAMRFHPUNISH INTERFEREHOPENTIME UTOOHOPENTIME TIMEUTOOFAILPUN TIMEOTOUFAILPUN PT GPRSPENALTYTIME AUTOADJULTHHYSTF ULTHF1 ULTHF2 ULTHF3 ULHYSTF1 ULHYSTF2 ULHYSTF3 DLTHF1 DLTHF2 DLTHF3 DLHYSTF1 DLHYSTF2 DLHYSTF3 AUTOADJULTHHYSTH ULTHH1 ULTHH2 ULTHH3 ULHYSTH1 ULHYSTH2 ULHYSTH3 DLTHH1 DLTHH2
18
AMR Basic
CS
19
PS Coding Schemes
PS
20
CCCH Block
CS
DLTHH3 DLHYSTH1 DLHYSTH2 DLHYSTH3 RATECTRLSW ACTCDSETH INITCDMDF ACTCDSETF INITCDMDH AMRUADTHAW LTFERUPTH LTFERLOWTH LTFERTGT LTTHADJFA AMRDADTHAW DLLTFERUPTH DLLTFERLOWTH DLLTFERTGT DLLTTHADJFA ACTCDSETWB ULTHWB1 ULTHWB2 ULHYSTWB1 ULHYSTWB2 DLTHWB1 DLTHWB2 DLHYSTWB1 DLHYSTWB2 INITCDMDWB RATSCCHENABLED UPFIXCS UPDEFAULTCS UPTHDCSUPGRADE1 UPTHDCSUPGRADE2 UPTHDCSUPGRADE3 UPTHDCSDEGRADE1 UPTHDCSDEGRADE2 UPTHDCSDEGRADE3 DNFIXCS DNDEFAULTCS DNTHDCSUPGRADE1 DNTHDCSUPGRADE2 DNTHDCSUPGRADE3 DNTHDCSDEGRADE1 DNTHDCSDEGRADE2 DNTHDCSDEGRADE3 UPFIXMCS UPDEFAULTMCS DNFIXMCS DNDEFAULTMCS UPE2AFIXMCS UPE2ADEFAULTMCS DNE2AFIXMCS DNE2ADEFAULTMCS ADJUSTULMCSTYPE CCCHLOADINDPRD
20
CCCH Block
CS
CCCHLOADTHRES BSAGBLKSRES BSPAMFRAMS RFRESINDPRD OVERLOADINTV RACHLDAVERSLOT ABISFCEN CANPC FMSMAXOPCC INTERFTHRES0
21
Interference Band Meas.
CS
22
P/N Criteria
CS
INTERFTHRES1 INTERFTHRES2 INTERFTHRES3 INTERFTHRES4 INTERFTHRES5 INTERPERIOD EDGEADJSTATTIME EDGEADJLASTTIME LEVSTAT LEVLAST PBGTSTAT PBGTLAST BETTERCELLSTATTIME BETTERCELLLASTTIME HOSTATICTIME HOLASTTIME HCSSTATTIME HCSLASTTIME BQSTATTIME BQLASTTIME TASTATTIME TX
23
RACH/Call Setup Parameter
CS
24
Idle Mode Parameter
CS
25
Call Drop Parameter
CS
RACHACCLEV RACHBUSYTHRED MSMAXRETRAN RXLEVACCMIN CELLBARACCESS2 RXMIN PI CRO TO CRH PT CBQ DROPCTRLERRINDT200 DROPCTRLERRINDDMRSP DROPCTRLERRINDSEQERR DROPCTRLCONNFAILRLFAIL DROPCTRLCONNFAILHOACCFAIL DROPCTRLCONNFAILOM DROPCTRLCONNFAILRRNOTAVL DROPCTRLCONNFAILOTHER DROPCTRLRELIND DROPCTRLABISCONNFAIL
25
Call Drop Parameter
CS DROPCTRLEQUIPFAIL DROPCTRLFORCHOFAIL DROPCTRLNOMR DROPCTRLRESCHK DROPCTRLINBSCHO DROPCTRLOUTBSCHOT8 DROPCTRLINTRABSCOUTHO DROPCTRLINTRACELLHO
26
27
28
Basic parameter of cell
Call Control basic parameter
GPRS Parameter
CS
CS
PS
FRDLDTX ENCRY FRULDTX CALLRESTABDIS IMMASSEN SDDYN LEVELRPT DYNOPENTRXPOWER BTSADJUST GMSKDELAY DIVERT8PSKDELAY TIMESLOTVOLADJALLOW POWERREDUCE16QAM POWERREDUCE32QAM CELLSCENARIO FASTCALLTCHTHRESHOLD IMMASSCBB NBAMRTFOSWITCH RTPSWITCH SAMULFRM PAGTIMES ASSLOADJUDGEEN AFRSAMULFRM AHRSAMULFRM AFRDSBLCNT AHRDSBLCNT COMMACC SPECACC ERGCALLDIS RLT ECSC MBR REASSEN EMLPPEN REPEATDLFASET REPEATDLFATHRED REPEATSASET LQCMODE BEPPERIOD UPFIXMCS UPDEFAULTMCS DNFIXMCS DNDEFAULTMCS UPE2AFIXMCS UPE2ADEFAULTMCS DNE2AFIXMCS DNE2ADEFAULTMCS
28
GPRS Parameter
PS ADJUSTULMCSTYPE SUPPORTDTM SUPPORTENDTM CLASS11DTM HMCDTM DLDCSPT SPTREDUCELATENCY SPTINTERRATOUTBSCPSHO SPTINTERRATINBSCPSHO
29
Fast HO parameter
CS
HOUPTRIGE HODOWNTRIGE MOVESPEEDTHRES SCELLFILTER NCELLFILTER IGNOREMRNUM TIMEPUNISH HOPUNISHVALUE HOOFFSET HODIRFORECASTEN HODIRSTATIME HODIRLASTTIME
Parameter Name
Recommended Values
Cell LAC BCCH FD NCC NCC Permitted _ _ _ _ _
Urban _ _ _ _ _ _ _ _ _
Rural _ _ _ _ _ _ _ _ _
Timeslot Priority Timeslot Power Reserve Allow Turning Off Time Slot
_ _ No
_ _ No
Meaning
Location area code (LAC). MSs can freely move in the local locati Can be input in hexadecimal format. The hexadecimal format is BCCH frequency of the cell Network color code that is provided by the telecom operator. T The and the NCCcells form BSIC. A setBCC of NCCs of the tothe be measured by the MS. This param If a bit of the value of this parameter is set to 1, the MS reports _ _ _ _ _ level of the channel is higher. ut power within a short time This parameter specifies wheth
Channel type _ _ _ 2 1 _ _ 2 1 _ _ 2 2 _ _ 2 2 _ PDCH Channel Priority Type EGPRS Normal EGPRS Normal _ _ _ _ _ _ _ _ Power Finetune _ _ the cabinet-top BTS3X:output 0-10 power. Power Level 3 3 BTS3001C: 0-13 BTS3002C: 0-10of the TRX. The macro BTS and the mini B Power This parameter Type specifies the maximum transmit 31W power supported 31W by the power amplifier This parameter specifies the TRX priority TRX Priority in channel assignment. The smaller this L0parameter is, L0 the higher the TRX priority is. For two TRXs with other conditions identic Shut Down Enabled Disable disable #N/A full rate. If this parameter is set to TCH YES, Rate theAdjust conversion Allowis allowed; if the parameter YESis set to NO, the YESconversion is not allowed and the changed channel is restored to the p the EDGE TRX. There are 50 power attenuation TRX 8PSK Level levels. At each level, the power is attenuated 0 by 0.2 0 dB. The RF spectrum are met only when the power of an ED receive requirements mode of the TRX. Receive Mode The Main BTS3012, DiversityBTS3012AE, Main Diversity BTS3012II, BTS3006C, and BTS3002E do not support Main Diversity. BTS3006C and BTS3002E doDBS3900 not support Wide Combining, PowerFour Booster Technology, or Transmitter The GSM and Band BTS3900 GSM support Diversity ReceiverDPBT, and Main Diversity.Ind Send ModeThe DTIC The DBS3900 GSM GRRU doesDTIC not support Wide Band Combining, Transmitter Independent or Combining, Power Boost Allow Dynamic shutdown TRX YES YES #N/A Timeslot Power Reserve 0 0 #N/A Frequency multiplexing mode in Frequency the TRX. To Reuse enable Mode a loose frequency multiplexing LOOSEmode suchLOOSE as 4x3 multiplexing, set this parameter to LOOSE. To enable a tight freque Priority of Shut Down TRX _ _ #N/A Power Overload Threshold In Ho. Out 15 15 #N/A Power Overload Threshold In Ho. In 8 8 #N/A tion level of all the other 16QAM timeslots Transmitter of the BCCH Power except Reduce for timeslot Level 7 in 16QAM. The 0 attenuation level 0 ranges from 0 to 50, with the step of 0.2 dB. When the EDGE TRX sen tion level of all the other 32QAM timeslots Transmitter of the BCCH Power except Reduce for timeslot Level 7 in 32QAM. The 0 attenuation level 0 ranges from 0 to 50, with the step of 0.2 dB. When the EDGE TRX sen Handover Enable SDCCH HO Allowed NO Whether NO to enable a handover between signaling channels Inter-BSC SDCCH HO ALLowed NO NO Whether to allow inter-BSC SDCCH handovers ure as the handover. The directed retry Directed is an emergency Retry measure applicable to abnormal YES traffic peaks YES in some areas of a radio network. You should not use the directed re No Dl Mr.HO Allowed NO Whether to enable NO the no-downlink measurement report handover algorithm dover determines whether the timingTAadvance HO Allowed (TA) is higher than the predefinedYES TA threshold. When YES the TA is higher than the predefined TA threshold, a TA handover is t nce handover algorithm. Interference Interference handovers HO Allowed are triggered when the receive level YES is higher than YESthe receive threshold while the transmit quality is lower than the inter Rx_Level_Drop HO AllowedWhether to use the emergency NO handover NOalgorithm in case the receive level of the MSs drops rapidly, thus preve igger BQ handover depends on the uplink BQ HOand Allowed downlink transmit quality (measured YESby using BER). YES If the uplink or downlink BQ exceeds the BQ handover threshold, emer Load HO Allowed Whether to switch some ofYES the calls in theYES underlay subcell to the overlay when the load of the underlay is higher th , the call may drop if the received signal Edge level HO Allowed is too low. To avoid such a call drop,YES the edge handover YES algorithm is involved. When the uplink signal level of the serving cel Quick Handover Enable NO NO Whether to allow the fast handover algorithm EN Quick PBGT HO ALG When MS Leaves BTS Whether NOto enable "Triggering NO the quick PBGT algorithm only when an MS is far from the BTS" Whether toMS enable Fast Moving the fast HO moving Allowed micro-cell handover algorithm. NO The fast moving NO micro-cell handover algorithm enables fast moving MSs to switch o Inner Cell EDGE HO Enable YES Whether YES to allow underlay-to-overlay edge handovers ayer and inter-level handovers. The Level inter-layer HO Allowed and inter-level handover algorithmYES is achieved through YES the setting of different layers and priorities for cells, which switches
on path loss. The PBGT handover algorithm PBGT HOsearches Allowedin real time for cells that have YESlower path loss YES and meet certain system requirements, and decides whether to perform eve wide coverage in the underlaid Concentric subcell Circles and aggressive HO Allowed frequency reuse in the YES overlaid subcell YES and to improve the system capacity and conversation quality. The concen AMR F-H Ho Allowed Whether blank to enable the blank algorithm for the load-based AMR handover between full rate and half rat Current HO Control Algorithm Whether_ to use handover algorithm generation 1 or 2 currently _ Allow AMR H-F Quality-based HO Whether to enable the blank algorithm forblank the uplink and downlink receive quality based AMR handover from half ra General HO parameters Min DL Level on Candidate Cell 0 0 If the downlink received signal If the uplink level of aCell neighbor cell is greater than 0 "Min UL Level 0 on Candidate Cell" plus "Min Access Level Offset", the neighbor cell c Minreceived UL Levelsignal on Candidate the expected uplink receive UL level on a new channel an MS is handed over to30a new cell. This30 parameter is used for the MS Power Prediction after HO. This paramete Expected Level at HOafter Access 30 at the BTS expected 30 Expected UL RX_LEV Received signal strength in power forecast, which helps to compute the initial transmit po 30 at an MS expected 30 Expected DL RX_LEV Received signal strength in power forecast, which helps to compute the initial transmit pow Power Budget Handover e triggering of PBGT handovers mustPBGT meetWatch the P/N Time criteria, that is, when the condition 3 for PBGT handovers 3 is met for a consecutive P seconds during N seconds, a PBGT ha e triggering of PBGT handovers mustPBGT meetValid the P/N Time criteria, that is, when the condition 2 for PBGT handovers 2 is met for a consecutive P seconds during N seconds, a PBGT ha ll are allowed only when the downlink PBGTlevel HO difference Threshold between the neighboring cell 68 and the serving 68 cell is larger than this parameter. When the value of this parameter is EN Quick PBGT HO ALG When MS Leaves BTS Whether to enable "Triggering the quick PBGT algorithm only when an MS is far from the BT on path loss. The PBGT handover algorithm PBGT HOsearches Allowedin real time for cells that have YESlower path loss YES and meet certain system requirements, and decides whether to perform Interference Handover nce handover algorithm. Interference Interference handovers HO Allowed are triggered when the receive level YES is higher than YESthe receive threshold while the transmit quality is lower than the inter Interfere HO Qual. Thresh 1 for Non-AMR Threshold FR for the interference handover 60 60 of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rat Interfere HO Qual. Thresh 2 for Non-AMR Threshold FR for the interference handover 50 50 of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rat Interfere HO Qual. Thresh 3 for Non-AMR Threshold FR for the interference handover 49 49 of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rat Interfere HO Qual. Thresh 4 for Non-AMR Threshold FR for the interference handover 48 48 of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rat Interfere HO Qual. Thresh 5 for Non-AMR Threshold FR for the interference handover 47 47 of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rat Interfere HO Qual. Thresh 6 for Non-AMR Threshold FR for the interference handover 46 46 of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rat Interfere HO Qual. Thresh 7 for Non-AMR Threshold FR for the interference handover 45 45 of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rat Interfere HO Qual. Thresh 8 for Non-AMR Threshold FR for the interference handover 44 44 of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rat Interfere HO Qual. Thresh 9 for Non-AMR Threshold FR for the interference handover 43 43 of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rat Interfere HO Qual. Thresh 10 for Non-AMR Threshold FR for the interference handover 42 42 of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rat Interfere HO Qual. Thresh 11 for Non-AMR Threshold FR for the interference handover 41 41 of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rat Interfere HO Qual. Thresh 12 for Non-AMR Threshold FR for the interference handover 40 40 of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rat Interfere HO ForQual. AMR Thresh FR voice Offset services, for AMR a fixed FR amount of offset 5 is added to the 5 corresponding grade of the received signal quality for the interference gering of interference handovers must Interfere meet HOthe Valid P/NTime criteria, that is, when P out of_N measurement_ reports meet the condition for interference handovers, a concentric cir ering of interference handovers Interfere must meet HOthe Static P/NTime criteria, that is, when P out of_N measurement_ reports meet the condition for interference handovers, a concentric cir The IBCAIBCA interference Max. Interference evaluationSource process Num. only considers the interference 20 of the 20 strongest N existing calls on the newly-established call being evaluated. T aged. The interference levelsInterference on idle channels Calculation are averaged Periodbefore the BTS sends 20 a radio resource20 indication message to the BSC. The averaging result is used for classifyin Penalty Time on Interfere HO _ Specifies an_interval between two consecutive interference handovers nk interference exists. If the downlink Interf.oflevel DL Level is equal Threshold to or greater than "Interf.of DL25 Level Threshold" 25and the downlink quality level is equal to or greater than "Interf.of DL Q ld for determining whether downlink Interf.of interference DL Qual.Threshold exists. If the downlink level is equal 40 to or greater 40than "Interf.of DL Level Threshold" and the downlink quality level is eq the thresholds to determine whether Interf.ofthe UL Qual. uplinkThreshold interference exists. If the uplink 40 level is not smaller 40 than "Interf.of UL Level Threshold" and the uplink quality of the chan the thresholds to determine whether Interf.ofthe UL Level uplinkThreshold interference exists. If the uplink 10 level is not smaller 10 than "Interf.of UL Level Threshold" and the uplink quality of the chan ed. The interference levels onInterference idle channels Calculation are averaged Period before the BTS sends a radio 20 resource indication 10 message to the BSC6900. The averaging result is used for classif Quality Handover igger BQ handover depends on the uplink BQ HOand Allowed downlink transmit quality (measured YESby using BER). YES If the uplink or downlink BQ exceeds the BQ handover threshold, emer ndover due to bad quality is successful, Penalty Time the penalty after BQ onHO the original serving cell is performed 15 within 15the "Penalty Time after BQ HO": the receive level of the original serving ndover due to bad quality is successful, Penalty Level the penalty after BQ onHO the original serving cell is performed 63 within 63the "Penalty Time after BQ HO": the receive level of the original serving DL Quality Threshold for TCH Call Drop When a call drops on the TCH, t 55 55 When a call drops on the TCH, t 55 55 UL Quality Threshold for TCH Call Drop Cell Rx Quality Worsen Ratio Threshold 30 30 This parameter specifies that the accumulatively calculated EDGE (Receive Level) Handover , the call may drop if the received signal Edge level HO Allowed is too low. To avoid such a call drop,YES the edge handover YES algorithm is involved. When the uplink signal level of the serving cel Edge HO UL RX_LEV Threshold If the UL receive level10 remains lower than 15 the "Edge HO UL RX_LEV Threshold" for a period, the edge handove andover algorithm is enabled,Edge this threshold HO DL RX_LEV can beThreshold decreased accordingly. If the PBGT 8 handover algorithm 8 is disabled, over-coverage, co-channel interference, and adjace According if the conditions Handover Algorithm II Edge HO Watch Time to the P/N rule, blank blankfor edge handover are met in P of N measurement reports, the hando This parameter specifies the number N. According if the conditions Handover Algorithm II Edge HO Valid Time to the P/N rule, blank blankfor edge handover are met in P of N measurement reports, the hando This parameter P. within N seconds, the hando According edge handoverspecifies are metthe for number P seconds Handover Algorithm I Edge HO Watch Time to the P/N rule, 4 if the conditions 4 for This parameter specifies the number N. According edge handover are met for P seconds within N seconds, the hando Handover Algorithm I Edge HO Valid Time to the P/N rule, 3 if the conditions 3 forThis parameter specifies the number P.
Inner Cell EDGE HO Enable
YES
Whether YES to allow underlay-to-overlay edge handovers Timing Advance Handover dover determines whether the timingTAadvance HO Allowed (TA) is higher than the predefinedYES TA threshold. When YES the TA is higher than the predefined TA threshold, a TA handover is t time advancing handover is successful, Penalty Level the penalty after TA onHO the original serving cell is performed 63 within 63the "Penalty Time after TA HO": the receive level of the original serving e P/N criterion must be met for triggering TA HO aWatch TA handover. Time That is, the TA handover can 1 be triggered 1only if P measurement reports among N measurement reports meet the weak-coverage cell. If the downlink level of a cellTAisThreshold lower than the value of this parameter 1 and the1 timing advance (TA) is smaller than the value of "Cell Weak Coverage T Cell Weak Coverage n over-coverage cell. If the downlink of a cell higher than the value of this parameter 1 and the 1 timing advance (TA) is greater than the value of "Cell Over Coverage T Cell Overlevel Coverage TAisThreshold ving the channel request message or handover access message, the BTS determines 63 whether the channel 63 assignment or handover is performed in the cell by comparing th Max TA time advancing handover is successful, Penalty the Timepenalty after TA onHO the original serving cell is performed 30 within 30the "Penalty Time after TA HO": the receive level of the original serving Directed Retry Handover Directed Retry YES YES Whether to enable a directed r Directed Retry Load Access Threshold 75 75 Threshold of the load in the tar Min Power Level For Directed Retry 16 16 In a direct retry, when the rece Cell Directed Retry Forbidden Threshold 3 3 Threshold of forbidding directe Load Handover System Flux Threshold for Load HO 10 10 . CPU usage smaller than 80% corresponds to level 0. CPU usag Load HO Threshold 90 90 The load handover is triggered Load handover Load Accept Threshold 85 85 If of a cell is lowerof t the first generation, load handove Inthe theload handover algorithm Load HO Bandwidth 25 25 In the handover algorithm of theorsecond generation, hand When the load of a cell reaches exceeds "Load HO load Threshold Load HO Step Period 10 10 This parameter indicates the duration of each handover level. Load HO Step Level 5 5 In hierarchical load handovers MS Fast-moving Watch Cells MS Fast-moving Valid Cells MS Fast-moving Time Threshold MAX Consecutive HO Times Forbidden time after MAX Times Interval for Consecutive HO Jud. Penalty on MS Fast Moving HO K Bias RX_QUAL Threshold for TIGHT BCCH HO Load Threshold for TIGHT BCCH HO Max Resend Times of Phy.Info. T3105 Inter BSC Load Information Allowed Waiting for MR on SDCCH Switch Duration for Waiting MR on SDCCH Assigning Better Cell Allowed Maximum Better Cell Assigning Duration Uplink Quality Threshold in Assigning Better Cell Downlink Quality Threshold in Assigning Better Cell Co-BSC/MSC Adj Intracell HO Allowed Load Handover Support Intracell F-H HO Stat Time Intracell F-H HO Last Time Inter-layer HO Threshold Inter-layer HO Hysteresis TIGHT BCCH HO Watch Time TIGHT BCCH HO Valid Time Concentric Circles ATCB HO Allowed Better Cell Handover Enable F-H Ho Duration F-H Ho Period AMR F-H Ho Pathloss Adjust Step AMR F-H Ho ATCB Adjust Step AMR F-H Ho Pathloss Threshold
3 2 15 3 20 6 30 0 3 80 30 7 NO OFF 10 OFF 40 50 50 No NO
3 2 15 3 20 6 30 0 3 80 30 7 NO OFF 10 OFF 40 50 50 No NO
5 4 40 1 3 2 No _ _ _ _ _ _
5 4 40 1 3 2 No _ _ _ _ _ _
This parameter is used in the P This parameter is used in the P A time threshold determined ba Number of consecutive intra-cel Duration in which intra-cell h The twice intra-cell handover Level value of the penalty that K offset used in K sequencing. When intra-cell TIGHT BCCH 2. The an uplink receive quality level after filtering is lower than "Q 3. The loadinformation is higher than "Intracellphysical Non Main BCCH The BTSnon-BCCH includes the of different layers in t For details, see protocols 08.58 and 04.08. When the BTS sends physical in Whether to use external 2G nei Whether a call must camp on th Duration for a call camping on Switch for assigning the channe The maximum duration for the BS Uplink quality level threshold Threshold of downlink receive q Whether to adjust the candidat This parameter specifies whethe This parameter specifies wheth The triggering of intra-cell FThe triggering of intra-cell F- of the serving cell = "Inter-layer Inter-layer handover threshold Inter-layer handover handover threshold threshold of of the a neighboring = "Inter-lay Inter-layer serving cellcell = "Inter-layer Inter-layer handover threshold of a neighboring cell = "Inter-lay The P/N criterion must be met The P/N criterion must be met Whether to enable the ATCB han Whether to enable the algorith Duration of the handover from fu Period of the from With "F-H Ho handover Period" and theful duration for triggering handover Path loss = (duration forduration triggeringforhandover from full rat With "F-Hoffset Ho Period" and the triggering handover ATCB offset = (duration for triggering handover from full rate to Path loss threshold for the AMR
F-H Pathloss Offset Overlay AMR F-H Ho ATCB Threshold F-H ATCB Offset Overlay AMR F-H Ho Qual. Threshold F-H Ho Stat. Time F-H Ho Last Time H-F Ho Duration AMR H-F Ho ATCB Threshold H-F ATCB Offset Overlay AMR H-F Ho Pathloss Threshold H-F Pathloss Offset Overlay AMR H-F Ho Qual. Threshold H-F Ho Stat. Time H-F Ho Last Time Non-AMR F-H Traffic Threshold Non-AMR F-H Ho Pathloss Adjust Step Non-AMR F-H Ho ATCB Adjust Step Non-AMR F-H Ho Pathloss Threshold Non-AMR F-H Ho ATCB Threshold Non-AMR F-H Ho Qual. Threshold Non-AMR H-F Traffic Threshold Allow Non-AMR H-F Quality-based HO Non-AMR H-F Ho ATCB Threshold Non-AMR H-F Ho Pathloss Threshold Non-AMR H-F Ho Qual. Threshold Inter-RAT Out BSC Handover Enable Inter-RAT In BSC Handover Enable Allow Incoming BSC Handover at Iur-g Inter-RAT Cell Reselection Enable Pathloss Ho. Enable Min Interval for TCH Hos Min Interval for SDCCH Hos Min Interval for Consecutive HOs Min Interval for Emerg. HO Penalty Allowed MR.Preprocessing Transfer Original MR Transfer BTS/MS Power Class Sent Freq.of preprocessed MR Edge HO AdjCell Watch Time Edge HO AdjCell Valid Time Layer HO Watch Time Layer HO Valid Time PBGT Watch Time PBGT Valid Time Better Cell HO Watch Time Better Cell HO Valid Time Quick Handover Static Time Quick Handover Last Time HCS HO Watch Time HCS HO Valid Time BQ HO Watch Time BQ HO Valid Time TA HO Watch Time TA HO Valid Time UL BQ HO Static Time
_ _ Path loss difference between t _ _ ATCB threshold for the AMR hand _ _ ATCB difference between the o _ _ Quality threshold for rule, the AMR According to the P/N if thehaconditions for the handover fro _ _ This parameter specifies the number N. for the handover fro According to the P/N rule, if the conditions _ _ This parameter specifies the number P. _ _ Duration of the handover from ha _ _ ATCB threshold for the AMR hand _ _ ATCB difference between the o _ _ Path loss threshold for the AMR _ _ Path loss difference between t _ _ Quality threshold for rule, the AMR According to the P/N if thehaconditions for the handover fro _ _ This parameter specifies the number N. for the handover fro According to the P/N rule, if the conditions _ _ This parameter specifies the number P. _ _ When the load of a cell no s offset together with other two pa Decides the current pathis cost _ _ Path cost offset = (Period of triggering a F-H handover / "F-H Ho _ _ Decides the offset of the curr _ _ When the path loss value of no _ _ When the ATCB value of non-AMR _ _ Quality threshold for non-AMR _ _ When the load of a cell is no l _ _ Whether to trigger non-AMR H_ _ When the ATCB value of non-AMR _ _ When the path loss value of no _ _ Quality threshold for non-AMR NO NO This parameter specifies wheth NO NO This parameter specifies wheth NO NO Whether to reserve resources f No No This parameter specifies whethe _ _ Whether to perform path loss-b 2 2 After a new TCH is assigned to 2 2 After a newinterval SDCCHbetween is assigned Minimum the two consecutive handover deci 4 4 To avoid frequent handover events in the cell, the BSC starts a ti 4 4 Minimum intervalfails between After a handover due totwo congestion of the target cell, the s YES YES Ping-pong handovers can easily occur when handovers are of m BSC_Preprocessing BSC_Preprocessing Whether to enable the BTS to _ _ Whether the BTSs send the ori _ _ Whether to enable the BTS to _ _ Frequency at which the BTSs According to the P/N rule, if a neighbor cell meets the condition 4 4 This parameter N.cell meets the condition According to thespecifies P/N rule,the if anumber neighbor 3 3 This parameter specifies the number P. 5 5 The triggering of inter-layer h 4 4 The triggering of inter-layer h 3 3 The triggering of PBGT handove 2 2 The triggering of PBGT handove According to the P/N rule, if the conditions for the handover to 6 6 This parameter number N. for the handover to According to thespecifies P/N rule,the if the conditions 4 4 This parameter specifies the number P. According to the P/N rule, if the conditions for fast handover ar 4 4 This parameter specifies the number N. for fast handover ar According to the P/N rule, if the conditions 3 3 This parameter number P. According to thespecifies P/N rule,the if the conditions for the handover to 3 3 This parameter specifies the number N. for the handover to According to the P/N rule, if the conditions 2 2 This parameter number P. According to thespecifies P/N rule,the if the conditions for emergency BQ h 1 1 This parameter specifies the number N. for emergency BQ h According to the P/N rule, if the conditions 1 1 This parameter specifies the number P. 1 1 The P/N criterion must be met 1 1 The P/N criterion must be met 1 1 The P/N criterion must be met
UL BQ HO Last Time Inter-cell HO Hysteresis Min Access Level Offset PBGT HO Threshold BQ HO Margin Adjacent Cell Inter-layer HO Hysteresis Directed Retry Handover Level Range Min DL Level on Candidate Cell UL PC Allowed DL PC Allowed Power Control Switch 0.2dB Power Control Enable DL Qual. Upper Threshold DL Qual. Lower Threshold DL RX_LEV Lower Threshold DL RX_LEV Upper Threshold UL RX_LEV Upper Threshold UL RX_LEV Lower Threshold UL Qual. Upper Threshold UL Qual. Lower Threshold Power Forecast Allowed Filter Length for DL RX_LEV Filter Length for UL RX_LEV Filter Length for UL Qual. Filter Length for DL Qual. GAMMA N_AVG_I Pb PC_MEAS_CHAN T_AVG_T T_AVG_W
1 2 15 68 65 67 72 0 YES YES PWR3 NO 1 3 25 35 30 20 1 3 NO 4 4 4 4 18 0 DB2 PDCH 10 10
1 4 15 68 65 67 72 0 YES YES PWR3 NO 1 3 25 35 30 20 1 3 NO 4 4 4 4 18 0 DB2 PDCH 10 10
Concentric Circles HO Allowed
YES
YES
OtoU HO Received Level Threshold UtoO HO Received Level Threshold OL to UL HO Allowed UL to OL HO Allowed Assign-optimum-level Threshold Tch Traffic Busy Overlay Threshold
20 30 YES YES 30 50
20 30 YES YES 30 50
The P/N criterion must be met Reduces ping-pong handovers be Minimum receive level offset. An MS can be handed over to a neighboring cell only when the PBGT handovers to a neighborin If ("downlink level of the neig Hysteresis value during the han Maximum signal level difference If the downlink received signal Whether to allow MS power co Whether to allow BTS power co Whether to enable power contro Whether to enable 0.2 dB down Quality level threshold for dec Quality level threshold for inc signal strength Lower threshold for downlink If the downlink received signal level is less than this threshold, a If the downlink signal Upper level isThreshold" greater than this thresho Power increase received = ("DL RX_LEV + "AMR DL RX Power decrease = downlink received signal level - ("DL RX_LEV When the uplink receive level When the uplink receive level The MS transmit power is decre The MS transmit power is incre Whether to allow active power Number of measurement reports When the network receives meas When the network receives meas Number of measurement reports Expected signal receiving str Filter consistent of the colli BTS power attenuation on th Channel used for the measured Filter period of the signal st Filter period of the signal st Whether to enable the concentr
One of the parameters that de One of the parameters that de Whether to allow overlay-to-u Whether a UL subcell to OL sub Preferentially assigns channel The BSC assigns channels in the overlaid subcell to the MS in a Channel seizure ratio = (Num. of busy TCHF + Num. of busy TCH Flat-HR This parameter Support Half determines Rate whether the BSC6900 supports NO new establishment NO causes of an MS in the initial access request. This parameter d ownlink DTX function is enabled for HRhalf Userate Downlink (HR) calls. DTXThis function is also restricted YES by the DTX switch YES in the MSC. If the MSC allows the downlink DTX for calls and the va e uplink DTX function is enabled for HR HRcalls. Uplink ForDTX details, see GSM Rec. 05.08.Shall_Use Uplink DTX is not Shall_Use restricted by the MSC. If this parameter is set to May_Use, the MS can use Non-AMR F-H Ho Allowed blank blank Whether to allow non-AMR voice F-H handover Intracell F-H HO Allowed Whether toYES allow AMR handovers. YES This parameter has no impact on dynamic non-AMR F-H handove TCH Traffic If the Busycurrent Threshold channel seizure ratio reaches 85or exceeds this 85value, the half-rate TCH is assigned preferentially; otherwise, the full-ra For an AMR call, H2F if theHO currently Threshold occupied channel is a half rate10 channel and the10Radio Quality Indication (RQI) is always lower than the threshold set by For an AMR call, F2H if theHO currently Threshold occupied channel is a full rate channel 30 and the30 Radio Quality Indication (RQI) is always higher than the threshold set by AMR-HR dover in an AMR half rate call. The DL Qual. valueLimit of this forparameter AMR HR corresponds to the quality 60 levels (0 to 60 7) multiplied by 10. An emergency handover can be triggered only when The value of thisUL parameter Qual. Limit corresponds for AMR HR to multiplying quality level 600 to 7 by 10. An 60emergency handover can be triggered only when the uplink receive qu and the current call uses the AMRHR T3109 encoding for AMR mode, HR the timer T3109 (AMRHR)27000 is started. If the 27000 BSC receives the ReleaseIndication message before the T3109 (AMRHR) ti AMR F-H Ho Allowed Whether blank to enable the blank algorithm for the load-based AMR handover between full rate and half rat AMR F-H Traffic Load threshold Thresholdfor the AMR handover blank from full rate toblank half rate. If the cell load is greater than this threshold, the AMR full rate ca Penalty Time after AMR Within TCHF-H the preset HO Failtime, no AMR FR-to-HR 30 handover 30 is allowed if the previous FR-to-HR handover fails due to channel unavail ReceiveQualThrshAMRHR IUO 60cell receive quality 60 threshold (AMRHR), which is used for IUO handover decision Intracell F-H HO Allowed Whether toYES allow AMR handovers. YES This parameter has no impact on dynamic non-AMR F-H handove
For an AMR call, H2F if theHO currently Threshold occupied channel is a half rate10 channel and the10Radio Quality Indication (RQI) is always lower than the threshold set by For an AMR call, F2H if theHO currently Threshold occupied channel is a full rate channel 30 and the30 Radio Quality Indication (RQI) is always higher than the threshold set by AMR H-F Traffic LoadThreshold threshold for the AMR handover blank from half rate blank to full rate. If the cell load is less than this threshold, the AMR half rate cal This parameter specifies T200 SACCH SDCCH 60 60 the expiry value of timer T200 used for the SACCH on the SDCCH. For the function of timer T200 and the effect of the parameter, see the description of "T200 SDCCH Timer for the BSC waiting for an T3101 Establish Indication message after sending 3000 an Immediate 3000 Assignment message. If T3101 expires before the BSC receives an Est #N/A 5000 5000 _ ted after the BSC6900 delivers a handover T3103A command in an intra-BSC inter-cell handover. 10000 If the BSC6900 10000 receives a handover complete message before this timer expires, ted after the BSC6900 delivers a handover T3103C command in an intra-BSC intra-cell handover. 10000 If the BSC6900 10000 receives a handover complete message before this timer expires, The timer is used to set the time T7 when the BSC6900 waits for an HO 10000 REQ ACK message 10000after a Handover Request message is reported in an outgoing BSC han he BSC6900 delivers an assignment command, T3107the T3107 timer starts. If the BSC6900 10000receives an10000 assignment complete message within the scheduled time, the T3107 tim Timer for the BSC6900 waiting T3121 for a handover complete message after 10000 sending a handover 10000request acknowledgment message in 2G/3G handover or inter-BSC h The timer is used to set the T8time when the BSC6900 waits for 10000 a handover success 10000 message after a handover command is sent in an outgoing BSC handov This T3109 timer is used to set the time of waiting 27000 for a ReleaseIndication 27000 message after a ChannelRelease message is sent. If the timer e channel deactivation after the active signaling T3111link is broken. The purpose is to reserve 1000 some time 1000 for the disconnection that may be repeated. After receiving a REL IND m TREESTABLISH 15000 15000 Call reestablishment timer Timer carried by the Wait Indication information T3122 10 10 element when the BSC6900 sends an immediate assignment reject After the MS receives the immediate assignment reject message, the MS reattempts to access the network after t nd the current call uses the AMRFR Wait for encoding REL Indication mode, AMR the timer FR T3109 (AMRFR) is34000 started. If the BSC6900 34000 receives the ReleaseIndication message before the T3109 (AMRFR and the current call uses the AMRHR T3109 encoding for AMR mode, HR the timer T3109 (AMRHR)2508 is started. If the2508 BSC receives the ReleaseIndication message before the T3109 (AMRHR) ti This parameter the queue timer for assignment. T11 8 8 queuingindicates 0 receives an assignment request and no channel is available for Length assignment, the BSC6900 starts the procedure and the timer. If incoming the channel is successful of the timer that is started to wait for a channel requested by an BSCrequest handover request m Into-BSC HO REQ Timer 8 and the timer 8 if no channel is available euing of incoming BSC handover requests, the Queue BSC6900 starts the queuing procedure for assignment. If the channel request is succ The TCHs reserved Timer forofthe Reserved emergency TCH call for EMC are assigned to the user during 15 the service 15assignment. If the TCHs are not assigned to the emergency call within a #N/A 10 10 _ Period in whichPenalty level penalty Time on is Fast performed Movingon HO the neighboring cells of 40the cell where40 a fast-moving MS is located. The neighboring cells must be located at th Inter AnUL/OL MS cannot Subcells be handed HO Penalty overTime from the underlaid subcell 5 to the overlaid 5 subcell in this duration after the MS is handed over from the overlaid ndover due to bad quality is successful, Penalty Time the penalty after BQ onHO the original serving cell is performed 15 within 15the "Penalty Time after BQ HO": the receive level of the original serving time advancing handover is successful, Penalty the Timepenalty after TA onHO the original serving cell is performed 30 within 30the "Penalty Time after TA HO": the receive level of the original serving Penalty Time after AMR Within TCHF-H the preset HO Failtime, no AMR FR-to-HR 30 handover 30 is allowed if the previous FR-to-HR handover fails due to channel unavail After a load handover succeeds, Penalty the Time BSC punishes on Load the HO former serving cell during blank"Penalty Time blank on Load HO" by subtracting "Penalty Value on Load HO" from the receiv Penalty Time after AMR Within TCHF-H the preset HO Failtime, no AMR FR-to-HR 30 handover 30 is allowed if the previous FR-to-HR handover fails due to channel unavail Penalty Time on Interfere HO blank Specifies blank an interval between two consecutive interference handovers Penalty Time Afterofan UtoO MS HO performs a OL subcell to UL10 subcell handover 10 successfully, the MS cannot be handed over to the OL subcell again wi Penalty Time after After UtoO an HO UL subcell Fail to OL subcell handover 40 of an MS 40 fails, the MS does not perform UL subcell to OL subcell handovers within Penalty Time afterAfter OtoUan HOOLFail subcell to UL subcell handover 10 of an MS 10fails, the MS does not perform OL subell-UL subcell handovers within t Cell CellReselect ReselectPenalty PenaltyTime Time(PT) is used to ensure the safety and validity of cell reselection because it helps to avoid frequent cell reselection. Timer GPRSused Penalty when Time the MS calculates the C2 (used 10 sec to evaluate the 10 channel sec quality during cell reselection). The time information is transmi Auto Adjust UL TH and Hysteresis [F] Whether toblank allow automatic blank adjustment for the uplink threshold and hysteresis of full rate AMR call r e related algorithm. The coding AMR rateULadjustment Coding Rate threshold adj.th1[F] is the threshold of RQI.15 The RQI indicates 15 the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CI e related algorithm. The coding AMR rateULadjustment Coding Rate threshold adj.th2[F] is the threshold of RQI.30 The RQI indicates 30 the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CI e related algorithm. The coding AMR rateULadjustment Coding Rate threshold adj.th3[F] is the threshold of RQI.45 The RQI indicates 45 the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CI e related algorithm. The coding AMRrate UL adjustment Coding Ratethreshold adj.hyst1[F] is the threshold of RQI. 7The RQI indicates 7 the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CI e related algorithm. The coding AMRrate UL adjustment Coding Ratethreshold adj.hyst2[F] is the threshold of RQI. 7The RQI indicates 7 the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CI e related algorithm. The coding AMRrate UL adjustment Coding Ratethreshold adj.hyst3[F] is the threshold of RQI. 7The RQI indicates 7 the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CI he current speech coding andAMR decoding DL Coding rate. Rate The adjustment adj.th1[F] threshold of coding 15 rate is the threshold 15 of the RQI, which is the carrier-to-interference ratio of a call. The RQ he current speech coding andAMR decoding DL Coding rate. Rate The adjustment adj.th2[F] threshold of coding 30 rate is the threshold 30 of the RQI, which is the carrier-to-interference ratio of a call. The RQ he adjustment thresholds andAMR the hysteresis DL CodingofRate coding adj.th3[F] rate must meet the following 45conditions: AMR 45 Coding Rate adj.th (n) < AMR Coding Rate adj.th (n + 1), n = 1 or 2; [A st the current speech codingAMR and DL decoding Codingrate. RateThe adj.hyst1[F] adjustment threshold of coding 7 rate is the threshold 7 of the RQI, which is the carrier-to-interference ratio of a call. The st the current speech codingAMR and DL decoding Codingrate. RateThe adj.hyst2[F] adjustment threshold of coding 7 rate is the threshold 7 of the RQI, which is the carrier-to-interference ratio of a call. The st the current speech codingAMR and DL decoding Codingrate. RateThe adj.hyst3[F] adjustment threshold of coding 7 rate is the threshold 7 of the RQI, which is the carrier-to-interference ratio of a call. The Auto Adjust UL TH and Hysteresis [H] Whether toblank allow automatic blank adjustment for the uplink threshold and hysteresis of half rate AMR call r e related algorithm. The coding AMR rate ULadjustment Coding Ratethreshold adj.th1[H] is the threshold of RQI.15 The RQI indicates 15 the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CI e related algorithm. The coding AMR rate ULadjustment Coding Ratethreshold adj.th2[H] is the threshold of RQI.30 The RQI indicates 30 the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CI e related algorithm. The coding AMR rate ULadjustment Coding Ratethreshold adj.th3[H] is the threshold of RQI.45 The RQI indicates 45 the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CI e related algorithm. The coding AMRrate UL adjustment Coding Ratethreshold adj.hyst1[H] is the threshold of RQI. 7The RQI indicates 7 the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CI e related algorithm. The coding AMRrate UL adjustment Coding Ratethreshold adj.hyst2[H] is the threshold of RQI. 7The RQI indicates 7 the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CI e related algorithm. The coding AMRrate UL adjustment Coding Ratethreshold adj.hyst3[H] is the threshold of RQI. 7The RQI indicates 7 the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CI he current speech coding andAMR decoding DL Coding rate.Rate The adjustment adj.th1[H] threshold of coding15 rate is the threshold 15 of the RQI, which is the carrier-to-interference ratio of a call. The RQ he current speech coding andAMR decoding DL Coding rate.Rate The adjustment adj.th2[H] threshold of coding30 rate is the threshold 30 of the RQI, which is the carrier-to-interference ratio of a call. The RQ
he current speech coding andAMR decoding DL Coding rate.Rate The adjustment adj.th3[H] threshold of coding45 rate is the threshold 45 of the RQI, which is the carrier-to-interference ratio of a call. The RQ st the current speech codingAMR andDL decoding Coding rate. Rate The adj.hyst1[H] adjustment threshold of coding 7 rate is the threshold 7 of the RQI, which is the carrier-to-interference ratio of a call. The st the current speech codingAMR andDL decoding Coding rate. Rate The adj.hyst2[H] adjustment threshold of coding 7 rate is the threshold 7 of the RQI, which is the carrier-to-interference ratio of a call. The st the current speech codingAMR andDL decoding Coding rate. Rate The adj.hyst3[H] adjustment threshold of coding 7 rate is the threshold 7 of the RQI, which is the carrier-to-interference ratio of a call. The AMR Rate Control Switch Switch for controlling the AMR rate.ALG1 Value 0 indicates ALG1 that C/I is used to control the AMR rate. Value 1 indicates that BER is us AMR ACS[H] Active coding set (ACS)[H], indicates101100 set of half-rate101100 coding rates currently available for calls. The AMR is a set of multiple spee AMR InitialStarting coding Mode[F] mode used for full rate AMR calls. The 0 four values 0, 0 1, 2, and 3 of this parameter respectively represent the lowest, low, hi AMR ACS[F] 110011 1001100 Active coding set (ACS)[F], ind AMR Starting Mode[H] 0 0 Initial coding mode used for ha AMR Uplink Adaptive Threshold Allowed No No Whether to enable the adaptive Uplink Long-term FER Upper Threshold 60 60 Upper voice quality threshold Uplink Long-term FER Lower Threshold 2 2 Lower voice quality threshold Uplink Long-term FER Target 8 8 Target voice quality value ass Uplink Threshold Adjust Factor 2 2 Factor of uplink threshold adj AMR Downlink Adaptive Threshold Allowed 2 2 Whether to enable the adaptive Downlink Long-term FER Upper Threshold 60 60 Upper voice quality threshold Downlink Long-term FER Lower Threshold 2 2 Lower voice quality threshold Downlink Long-term FER Target 8 8 Target value of the voice qual Downlink Threshold Adjust Factor 2 2 Factor of downlink threshold a AMR ACS[WB] 111 111 Active coding set (ACS)[WB], in AMR UL Coding Rate adj.th1[WB] 21 21 Based on the RQI in the call me AMR UL Coding Rate adj.th2[WB] 25 25 Based on the RQI in the call me AMR UL Coding Rate adj.hyst1[WB] 2 2 Based on the RQI in the call me AMR UL Coding Rate adj.hyst2[WB] 2 2 Based on the RQI in the call me AMR DL Coding Rate adj.th1[WB] 12 12 Adjustment threshold 1 of AMR AMR DL Coding Rate adj.th2[WB] 18 18 Adjustment threshold 2 of AMR AMR DL Coding Rate adj.hyst1[WB] 2 2 Adjustment hysteresis 1 of AMR AMR DL Coding Rate adj.hyst2[WB] 2 2 Adjustment hysteresis 2 of AMR AMR Starting Mode[WB] 2 2 Initial coding mode used for b Is RATSCCH Function Enabled DISABLE DISABLE This parameter specifies wheth Adjustment mode ofUplink the uplink FixedGPRS CS Type link coding scheme. If the fixed Unfixed coding scheme Unfixed is used, this parameter is a value ranging from CS1 to CS4. If the dynam eme of the uplink GPRS link. If theUplink uplinkDefault adopts CS theType dynamic adjustment coding CS1 scheme, this parameter CS1 can be used to set the coding scheme for transmission during initi Retransmission threshold when Uplinkthe TBFcoding Threshold modefrom of the CS1uplink to CS2TBF is changed from5CS1 to CS2. When 5 the retransmission rate of the uplink TBF is less than or equal to this Retransmission threshold when Uplinkthe TBFcoding Threshold modefrom of the CS2uplink to CS3TBF is changed from2CS2 to CS3. When 2 the retransmission rate of the uplink TBF is less than or equal to this Retransmission threshold when Uplinkthe TBFcoding Threshold modefrom of the CS3uplink to CS4TBF is changed from2CS3 to CS4. When 2 the retransmission rate of the uplink TBF is less than or equal to this transmission threshold when Uplink theTBF coding Threshold mode of from theCS2 uplink to CS1 TBF is changed from 10 CS2 to CS1. When 10the retransmission rate of the uplink TBF is greater than or equal to th transmission threshold when Uplink theTBF coding Threshold mode of from theCS3 uplink to CS2 TBF is changed from CS3 5 to CS2. When 5 the retransmission rate of the uplink TBF is greater than or equal to th transmission threshold when Uplink theTBF coding Threshold mode of from theCS4 uplink to CS3 TBF is changed from CS4 5 to CS3. When 5 the retransmission rate of the uplink TBF is greater than or equal to th Adjustment mode of the Downlink downlinkFixed GPRSCSlink Type coding scheme. If the fixed Unfixed coding scheme Unfixed is used, this parameter is set to a value ranging from CS1 to CS4. If the dy Coding scheme of the Downlink defaultDefault GPRS downlink. CS Type Dynamic adjustment coding: CS2 the coding CS2 scheme used during initial access transmission. If the downlink uses the RetransmissionDownlink thresholdTBF when Threshold the coding frommode CS1 to ofCS2 the downlink TBF is changed 5 from CS1 5 to CS2. When the TBF retransmission rate is less than or equals to this RetransmissionDownlink thresholdTBF when Threshold the coding from mode CS2 to of CS3 the TBF is changed from 2 CS2 to CS3. When 2 the downlink TBF retransmission rate is less than or equals to CS2 Retransmission thresholdDownlink when theTBF coding Threshold modefrom of theCS3 downlink to CS4 TBF is changed from 2 CS3 to CS4. 2When the downlink TBF retransmission rate is less than or equals to this Retransmission threshold Downlink whenTBF theThreshold coding mode fromofCS2 theto downlink CS1 TBF is changed 10 from CS2 to CS1. 10 When the downlink TBF retransmission rate is greater than or equals Retransmission Downlink threshold TBF Threshold when the coding from CS3 mode to CS2 of the TBF is changed 5 from CS3 to CS2. 5 When the TBF retransmission rate is greater than or equals to this va Retransmission threshold Downlink whenTBF the Threshold coding mode from ofCS4 the to downlink CS3 TBF is changed 5 from CS4 to CS3. 5 When the downlink TBF Retransmission rate is greater than or equals Coding scheme of the uplink EDGE Uplinklink. Fixed If the MCSuplink Type uses the fixed coding scheme, Unfixed this parameter Unfixedis set to a value ranging from MCS1 to MCS9. If the uplink uses the d eme of the uplink EDGE link. If the Uplink uplink Default adoptsMCS the Type dynamic adjustment codingMCS scheme, 5 this parameter MCS 5 can be used to set the coding scheme for transmission during initi oding scheme of the downlink EDGE Downlink link. Fixed If the MCS downlink Type uses the fixed codingUnfixed scheme, this parameter Unfixed is set to a value ranging from MCS1 to MCS9. If the downlink uses of the downlink EDGE link. If the Downlink downlink Default adoptsMCS the Type dynamic adjustment coding MCS scheme, 5 this MCS parameter 5 can be used to set the coding scheme for transmission during in coding scheme that is usedUplink on theEGPRS2-A uplink EGPRS2-A Fixed MCS link.Type If the uplink uses theUnfixed fixed coding scheme, Unfixed this parameter can be set to any one in MCS1-6 and UAS7-11. If the u eme used on the uplink EGPRS2-A Uplink EGPRS2-A link. If theDefault uplink MCS uses Type the dynamic coding scheme, MCS 6 this parameter MCS 6 specifies the coding scheme that is used for the transmission in initi d coding scheme that is used Downlink on the EGPRS2-A downlink EGPRS2-A Fixed MCSlink. TypeIf the downlink uses Unfixed the fixed coding Unfixed scheme, this parameter can be set MSC1-4, MSC7-8 or DAS5-12.. If the used on the downlink EGPRS2-A Downlinklink. EGPRS2-A If the downlink Default MCS uses Type the dynamic coding scheme, DAS6 this parameter DAS6 specifies the coding scheme that is used for the transmission in ini Value 0 indicates dynamic adjustment of EGPRS uplink coding scheme is not supported; Support EGPRS Uplink MCS Dynamic Adjust 1 scheme value 1 indicates that1the uplink coding is adjusted according to downlink quality measurements repo CCCH Load Indication Period 15 15 Time interval for sending over
CCCH Load Threshold CCCH Blocks Reserved for AGCH Multi-Frames in a Cycle on the Paging CH Radio Resource Report Period Overload Indication Period Average RACH Load Timeslot Number SDCCH Congestion Flow Control Allowed PWRC MS_TXPWR_MAX_CCH
80 0 2_M_Period 10 15 5000 YES YES 5
80 This parameter is used by the 0 BS-AG-BLKS-RES, indicating the of multiframes in a cycle on a paging sub-channel. In fa 2_M_Period Number Interval for sending resource indication messages. The In an actual network,the anradio MS does not listen to other paging sub 10 This parameter is used by a BTS to inform messages the BSC ofto the interfe Interval for the BTS transmitting overload the BSC. 15 The overload can burst be thetimeslots TRX processor overload, downlink CCC Number of RACH in a RACH load measurement. 5000 The value of this parameter indicates the interval during which Whether to permit Abis flow control. YES The flow control function helps in better call management. If co Maximum transmit power level of MSs. As one of the cell resele YES Whether an MS calcula power control level of an MS ra In a GSM900 cell,uses thethe maximum 5 In a GSM1800 or GSM1900 cell, the maximum power control le Threshold used for interference measurement. Interference Band Threshold 0 110 the current110 he values of these levels are called interference band thresholds. The BTS determines interference level based on these thresholds, and then reports a radio re Threshold used for interference measurement. Interference Band Threshold 1 105 the current105 he values of these levels are called interference band thresholds. The BTS determines interference level on thesemeasurement. thresholds, and then reports a radio re Threshold used forbased interference Interference Band Threshold 2 100 the current98 he values of these levels are called interference band thresholds. The BTS determines interference level based on thesemeasurement. thresholds, and then reports a radio re Threshold used for interference Interference Band Threshold 3 92 the current92 he values of these levels are called interference band thresholds. The BTS determines interference level based on thesemeasurement. thresholds, and then reports a radio re Threshold used for interference Interference Band Threshold 4 87 the current87 he values of these levels are called interference band thresholds. The BTS determines interference level based on thesemeasurement. thresholds, and then reports a radio re Threshold used for interference Interference Band Threshold 5 85 the current85 he values of these levels are called interference band thresholds. The BTS determines interference level based on these thresholds, and then reports a radio re ed. The interference levels onInterference idle channels Calculation are averaged Period before the BTS sends a radio 20 resource indication 10 message to the BSC6900. The averaging result is used for classif According to HO the AdjCell P/N rule, if a neighbor for selecting Edge Watch Time cell meets the conditions 4 4 the neighbor cell for edge handover in P of N measurement reports, t This parameter specifies the number N. According to the rule,Valid if a neighbor cell meets the conditions for selecting Edge HO P/N AdjCell Time 3 3 the neighbor cell for edge handover in P of N measurement reports, t This parameter specifies the number P. ing of inter-layer handovers must meet Layer the HO Watch P/N criteria, Time that is, when the condition5 for inter-layer handovers 5 is met for a consecutive P seconds during N seconds, an inter ing of inter-layer handovers must meet Layerthe HOP/N Validcriteria, Time that is, when the condition4 for inter-layer handovers 4 is met for a consecutive P seconds during N seconds, an inter e triggering of PBGT handovers mustPBGT meetWatch the P/N Time criteria, that is, when the condition 3 for PBGT handovers 3 is met for a consecutive P seconds during N seconds, a PBGT ha e triggering of PBGT handovers mustPBGT meetValid the P/N Time criteria, that is, when the condition 2 for PBGT handovers 2 is met for a consecutive P seconds during N seconds, a PBGT ha the P/N rule, if the conditions a better cell due to interference are met for P seconds within N se Better CellAccording HO WatchtoTime 6 for the handover 6 to This parameter specifies the number According the P/N rule, if the conditions a better cell due to interference areN. met for P seconds within N se Better Cell HO ValidtoTime 4 for the handover 4 toThis parameter specifies the number P. According to the P/N rule, if the conditions for fast handover are met in P of N measurement reports, the hando Quick Handover Static Time 4 4 This parameter specifies the number N. According to the P/N rule, if the conditions for fast handover are met in P of N measurement themultiple hando Tx-integer for short). This parameter specifies the number of timeslots between two transmissions when anreports, MS sends Quick Handover Last (T Time 3 3 This parameter specifies the number P. According to the P/N rule, if the conditions for the handover to a different micro cell due to fast movement are met in P of N measurem thm is defined in GSM Rec. 04.08 to reduce the collisions RACH. The algorithm specifies three parameters: Tx-integer (T for HCS HO Watch Time on the RACH and improve 3 the efficiency 3of the Thisthe parameter the movement number N. arethis This parameter works configuration of the CCCH to determine parameter S. The relations between and the c According to the P/N with rule, the if the conditions for handover to 2a different micro cellspecifies due to fast metparameter in P of N measurem HCS HO Valid Time 2 When this parameter is set to 3, 8,This 14, or 50, S is 55 if the CCCH and SDCCH do not share a physical cha parameter specifies the number P. According to the P/N rule, if the conditions for emergency BQ handover are met in P of N measurement reports, the h BQ HO Watch Time When this 1parameter is set1to 3, 8, 14, or 50, S is 41 if the CCCH and SDCCH share a physical channe This parameter specifies the number N. According to the P/N rule, if the conditions for emergency BQ handover are met in P of N measurement reports, the h When this parameter is set 1to 4, 9, or 6, S is 76 if the CCCH and SDCCH do not share a physical chann BQ HO Valid Time 1 This parameter specifies the number P. share a physical channel. When this parameter is set to 4, 9, or 6, S is 52 if the CCCH and SDCCH e P/N criterion must be met for triggering TA HO aWatch TA handover. Time That is, the TA handover can 1 be triggered P measurement reports among N measurement reports meetcha the When this parameter is set to1only 5, 10,if or 20, S is 109 if the CCCH and SDCCH do not share a physical When this parameter is set to 5, 10, or 20, S is 58 if the CCCH and SDCCH share a physical channel TX-integer TX_32 When this parameter is setTX_32 to 6, 11, or 25, S is 163 if the CCCH and SDCCH do not share a physical cha When this parameter set to 6, 11, or 25, S is 86 if the CCCHlevel and of SDCCH shareburst a physical channel han the value of CS RACH Min.Access CS RACH Level, Min. the Access BTS regards Level this access as an invalid -105one and noisdecoding -105 is performed. If the receive the RACH is greater tha When this parameter is set to 7, 12, or 32, S is 217 if the CCCH and SDCCH do not share a physical cha Level threshold of the MS RACH random Busy Threshold access for the BTSMaximum to determine the 16 RACH busy state. 16 When the receive level of the random access burst timeslot is greater When this parameter is set to 7, 12, or 32, S is 115 if the CCCH and SDCCH share a physical channe number of Channel Request messages that can be sent by an MS in an immediate assignment pt The timeslot sending messages is a random value the collection 1...,not MAX(T, 8)-1}. re, it always listens to the messages MS on the MAXBCCH Retrans and all the common control channels 2 times for (CCCHs) 2intimes the CCCH group to which thefrom MS belongs. If the of MS{0, does receive Im The number of timeslots (excluding the timeslot used to send quality messages) between two adjacent channel request messages is a random If the thelevel MS may send SABM the BTS times. valu Minimum Receiving level for Access 2downlink Minimum receiving 2 is poor, power for the MS in theframes cell toto access themultiple system When T increases, the interval between two adjacent channel requests increases, and RACH conflicts de e cell can be added to the reselected Cell candidate Access cell Switch list. Ifthe thisinterval parameter is settwo to Permit "NoPermit", the Permit cell cannotmessages be reselected as theand candidate cell for handover. If thisimprov param When SBar increases, between adjacent channel request increases, RACH conflicts decrease, thus theofMS, prolonged and in thethe network performance decreased when increase. normal anaccess appropriate T value shouldsee be GSM used Rec to e l of level thehowever, MS. This is level is reported Minum Access system RXLEV information. is This parameter specifies 9 T and Sthe minimum 9 Under receive levelconditions, of an MS to the BSS. For details. Cell Reselect Parameters Cell Reselect Indication Parameters (PI), sentIndication on the broadcast channel, indicates YES whether YES "Cell Reselect Offset", "Cell Reselect Temporary Offset" in the "SET GCE Cell Reselect Offset (CRO), indicating a correction of the C2. Proper setting of this parameter can Cellreduce Reselect theOffset number of handover times, helpful 0 for assigning0an MS to a better cell. In a special case that the PT is 31, the larger the C RO with a too large value(TO) willindicates cause uncertain states incorrection a network. CRO parameter values0of the cells only with1within different in a network areReselect almost the same. ReferFor to GSM Recs select Temporary Offset Cell Reselect the Temporary temporary Offset ofThe C2. This is valid thepriorities value specified by "Cell Penalty Time". details, n hysteresis. This is one of the Cellparameters Reselect Hysteresis used forParameters deciding whether to reselect10db cells in different12db location areas. This parameter can avoid the increase of network signalin Cell CellReselect ReselectPenalty PenaltyTime Time(PT) is used to ensure the0safety and validity 0 of cell reselection because it helps to avoid frequent cell reselection. NO NO Normal Normal Cell Bar Qualify No No NO YES Prohibited Prohibited Drop Optimize Err Ind[T200 timeout] 1 1 Whether to optimize the call dr Drop Optimize Err Ind[unsolicited DM response] 1 1 Whether to optimize the call dr Drop Optimize Err Ind[sequence error] 1 1 Whether to optimize the call dr Drop Optimize Conn Fail[radio link fail] 1 1 Whether to optimize the call dr Drop Optimize Conn Fail[HO access fail] 1 1 Whether to optimize the call dr Drop Optimize Conn Fail[OM intervention] 1 1 Whether to optimize the call dr Drop Optimize Conn Fail[resource not available] 1 1 Whether to optimize the call dr Drop Optimize Conn Fail[other] 1 1 Whether to optimize the call dr Drop Optimize Release Indication 1 1 Whether to optimize the call dr Drop Optimize ABIS Link Failure 1 1 Whether to optimize the call dr
Drop Optimize Equipment Failure Drop Optimize Forced Handover Failure Drop Optimize No MR for Long Time Drop Optimize Resource Check Drop Optimize Into-BSC Handover Timeout Drop Optimize Out-BSC Handover Timeout Drop Optimize Intra-BSC Handover Timeout Drop Optimize Intra-Cell Handover Timeout
1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1
FR Use Downlink DTX Encryption Algorithm FR Uplink DTX Call Reestablishment Forbidden TCH Immediate Assignment SDCCH Dynamic Allocation Allowed Level Report Switch Allow Dynamic Shutdown of TRX Adjust Voltage Diversity Transmitter GMSK Delay Diversity Transmitter 8PSK Delay Voltage Adjust Based Timeslots Allowed 16QAM Transmitter Power Reduce Level 32QAM Transmitter Power Reduce Level Cell Scenario Fast Call Setup TCH Usage Threshold Immediate Assignment Optimized TFO Switch Measure Link Delay Switch
YES 11000000 Shall_Use YES NO YES YES YES YES 16 8 NO 0 0 COMMON 0 NO DISABLE DISABLE
YES 11000000 Shall_Use YES NO YES YES YES YES 16 8 NO 0 0 COMMON 0 NO DISABLE DISABLE
SACCH Multi-Frames Paging Times Assignment Cell Load Judge Enable AFR SACCH Multi-Frames AHR SACCH Multi-Frames AFR Radio Link Timeout AHR Radio Link Timeout Common Access Control Class Special Access Control Class Emergency Call Disable Radio Link Timeout ECSC Multi-band report Allow Reassign Allow EMLPP Repeated Downlink FACCH Repeated Downlink FACCH Threshold Repeated SACCH
32 2 DISABLE 32 32 32_Times 32_Times 0 0 NO 32_Times YES 0 YES NO NO 0 NO
32 2 DISABLE 32 32 32_Times 32_Times 0 0 NO 32_Times YES 0 YES NO NO 0 NO
This parameter specifies whethe Encryption algorithm supporte Whether the uplink DTX functio Whether to allow call re-establ Whether to allow immediate TCH Whether to allow SDCCH dynami Whether to support the reporti This parameter specifies wheth This parameter specifies wheth Delay of transmit diversity whe Delay of transmit diversity whe This parameter determines whet Power attenuation level of ti Power attenuation level of ti Information about the cell scen After a channel request message The channel activation and imm Whether to enable the Tandem Whether to measure o to inform the BSC of radio lin This parameter is usedthe bydelay the BTS When the BTS receives the SACCH measurement report from th When the value of this parameter is 0, the BTS regards the radio For the BTS, this parameter is When this parameter is set to E Number of SACCH multiframes d Number of SACCH multiframes d Counter for radio link failures Counter for radio link failures Level of common access control This parameter is used for load Whether to disable emergency ca the MS fails to decode the S Time for disconnecting a call when Each time an SACCH message is not decoded, the counter S dec The early classmark sending co Used for requesting the MS to Whether to has allow reassign The eMLPP upthe to seven priorities: A, B, 0, 1, 2, 3, and 4. The With the support of the MSC, HLR, and mobile terminal (contai When the cell supports Repeat If the cell supports the Repea When the cell supports Repeat
Link Quality Control Mode Bep Period Uplink Fixed MCS Type Uplink Default MCS Type Downlink Fixed MCS Type Downlink Default MCS Type Uplink EGPRS2-A Fixed MCS Type Uplink EGPRS2-A Default MCS Type Downlink EGPRS2-A Fixed MCS Type Downlink EGPRS2-A Default MCS Type
LA 10 UNFIXED MCS5 UNFIXED MCS5 UNFIXED MCS6 UNFIXED DAS6
LA 10 UNFIXED MCS5 UNFIXED MCS5 UNFIXED MCS6 UNFIXED DAS6
It is applicable to the radio Average period for sending t Coding scheme of the uplink ED Default coding scheme of the u Coding scheme of the downlink Default coding scheme of the d Fixed coding scheme that is us Default coding scheme used on Fixed coding scheme that is us Default coding scheme used on
Whether to optimize the call dr Whether to optimize the call dr Whether to optimize the call dr Whether to optimize the call dr Whether to optimize the call dr Whether to optimize the call dr Whether to optimize the call dr Whether to optimize the call dr
Support EGPRS Uplink MCS Dynamic Adjust Support DTM Support Enhanced DTM Support Class11 DTM Support HMC DTM Support Downlink Dual-Carrier Support Reduced Latency Capability Support Out Inter-RAT Inter-Cell PS Handover Support In Inter-RAT Inter-cell PS Handover
1 UNSUPPORT UNSUPPORT UNSUPPORT UNSUPPORT UNSUPPORT UNSUPPORT UNSUPPORT UNSUPPORT
1 UNSUPPORT UNSUPPORT UNSUPPORT UNSUPPORT UNSUPPORT UNSUPPORT UNSUPPORT UNSUPPORT
value 1 indicates that the uplink coding scheme is adjusted acco value 2 indicates thatdual the transfer uplink coding is adjusted acco Whether to support mode scheme (DTM). The DTM allows If "Cell Extension Type" in the "ADD GCELL" command or "MOD Whether to support the enhanc Whether the cell supports the Whether the cell supports the Whether the cell supports DL Cell supports reduced latency c Whether support Out Inter-RAT Whether to support In Inter-RA
Quick Handover Up Trigger Level Quick Handover Down Trigger Level Quick Move Speed Threshold Serving Cell Filter Length MR Number Neighbor Cell Filter Length MR Number Ignore Measurement Report Number Quick Handover Punish Time Quick Handover Punish Value Quick Handover Offset Handover Direction Forecast Enable Handover Direction Forecast Statistic Times Handover Direction Forecast Last Times
63 63 80 4 4 1 10 63 68 NO 3 3
63 63 80 4 4 1 10 63 68 NO 3 3
Fast handover can be triggered Fast handover can be triggered A quick handover can be initiat When the network receives mea For the purpose of accurately Number of invalid measurement After the fast handover is succ To avoid ping-pong handover, t Fast handover can be triggered Handover direction forecast This parameter indicates N inswi the P/N rule for MS handover dire P/N rule: Among N handovers, theP/N MSrule is handed to Class This parameter indicates P in the for MS over handover direB P/N rule: Among N handovers, the MS is handed over to Class B
Prepared By: Aqeel Hasan K NPO WARID (South) ERICSSON PAKISTAN
Impact
Unit
Default
Recommended
None None None orresponding NCC bit is set to _ _ _ _ _
_ _ _ _ _
_ _ _ _ _
_ _ _ _ _
W None
20 NO
none Channel type _ _ _ _ _
If the board is configured with five TRXs, the recommended valu If the board is configured with six TRXs, the recommended value NO
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ None None None _ _ _ _ _ _ _ _ ropriately high or small, the BTS cabinet top output powerNone is inconsistent with the TRX output Defaultpower. Default None None 0 0 None None DEFAULT None None None L0 L0 #N/A None ENABLE ENABLE None None NO NO None dB 0 0 if INDEPENDENT TRX of Board type is TRU, QTRU the recommended value is "INDEPENDENT". None None if TRX of Board is MRRU, GRRU, DRFU, DRRU recommended value is "MAINDIVERS if TRX type of Board type is TRU, BTS3900B, QTRU, MRRU, GRRU thethe recommended value is "NOCOMB". None None if TRXNOCOMB of Board type is BTS3900B, DRFU, DRRU the recommended value is "DTIC". #N/A None NO If the board is configured with two to four TRXs,NO the recommended value of this parameter is 20. #N/A W If the board is20 configured with five TRXs, the recommended value of this parameter is 50. If thequality board iswill configured recommended value of this parameter is 48. sistent with the actual frequency reuse pattern of the TRX.None Otherwise, the speech LOOSE be bad. with six TRXs, the LOOSE #N/A None L0 L0 TRX W 15 15 TRX W 8 8 None dB 0 0 None dB 0 0 Handover Enable None None NO NO None None NO NO None None YES YES None None NO NO None None YES YES None None YES YES e level drops rapidly due toNone multiple barriers. The propagation Noneloss of the 1800 MHz frequency NO band is greater than the propagation loss of the 900 MHz frequency band. C None None YES YES None None YES YES None None YES YES None None NO NO None None NO NO None None SetNO this parameter to YES only in special scenarios such as highways. None None YES YES None None YES YES
None None YES YES None None NO NO k congestion, but the voice quality is decreased; if this switch Noneis turned off, AMR FR calls cannot NO be switched into AMR HR NOcalls, that is, network congestion None None None None None None NO NO General HO parameters me desired cells may be excluded from the candidate cells dB and call drops may occur. If this10parameter is set to a smaller 10 value, an unwanted cell may becom us "Min Access Level Offset", the neighbor cell can be listeddB in the candidate cell queue for0handover. 0 e MS Power Prediction after HO. This parameter should be levels consistent with the UL RX_LEV30 Upper Threshold in Huawei II 30 power control algorithm, us the network interference can not be reduced effectively.dB If this parameter is set to a smaller 30 value, call drops may occur 30due to excessive power control. which helps to compute the initial transmit power of the BTS dB 30 30 Power Budget Handover ay be performed; if this parameter is set to a smaller value, shandovers may not be performed 6 in time and call drops may 6occur. a greater value, the handover cannot be performed in time sand call drops may occur. 4 4 eter is set to a smaller value, unnecessary handovers may be performed. None dB In densely populated urban 68 areas, the recommended value is 68; in the suburbs, the recommended valu None None NO GT algorithm only when an MS is far from the BTS None None YES YES Interference Handover None None YES YES None None 60 60 None None 50 50 None None 49 49 None None 48 48 None None 47 47 None None 46 46 None None 45 45 None None 44 44 None None 43 43 None None 42 42 None None 41 41 None None 40 40 None None 5 5 e handover cannot be performed in time. Thus, the voice quality is decreased and call drops s 2 may occur. 2 eter value, unnecessary unnecessary handovers handovers may may be be performed. performed. eter is is set set to to aa smaller greater value, s 3 3 he handover cannot be performed in time, thus the voice quality is decreased or call drops may occur. None None 20 20 None ms 20 20 this parameter is set to a greater value, call drops may occur.s 15 15 r value, handover may be performed frequently and the signaling load in the cell is increased. None dB 35 35 None None 40 40 None None 40 40 None dB 30 30 None ms 20 20 Quality Handover None None YES YES original cell, thus leading to call drop when there is no suitable s neighboring cell. If this parameter 10 is set to a smaller value, 10the MS is likely to be hande original cell, thus leading to call drop when there is no suitable dB neighboring cell. If this parameter 63 is set to a smaller value, 63the MS is likely to be hande Nonethe values of the two counters Noneare increased. The overall number 55 lity) are reduced. When this parameter is set to a small value, of call drops, however, remains unchanged lity) are reduced. When this parameter is set to a small value, of call drops, however, remains unchanged Noneare increased. The overall number 55 Nonethe values of the two counters None None 30 specifies that the accumulatively calculated EDGE (Receive Level) Handover None None YES YES ayed handover; if this parameter is set to a greater value, unnecessary dB handover may be performed, 10 thus affecting the voice 10 quality. The recommended value isthe 20 voice whenquality. HUAWEI I Handover is used; ayed handover; if this parameter is set to a greater value, unnecessary dB handover may beThe performed, 20 recommended thus affecting value is 15 when HUAWEI II Handover is used. eter is set to a greater value, unnecessary handovers may bes performed. 1 1 handover cannot cannot be be performed performed in in time. time. Thus, Thus, the the voice voice quality quality is is decreased decreased and and call call drops drops may may occur. occur. ee handover s 1 1 eter value, unnecessary unnecessary handovers handovers may may be be performed. performed. eter is is set set to to aa smaller greater value, s 6 6 handover cannot cannot be be performed performed in in time. time. Thus, Thus, the the voice voice quality quality is is decreased decreased and and call call drops drops may may occur. occur. ee handover s 4 4 eter is set to a smaller value, unnecessary handovers may be performed.
None None YES YES Timing Advance Handover None None YES YES original cell, thus leading to call drop when there is no suitable dB neighboring cell. If this parameter 63 is set to a smaller value, 63the MS is likely to be hande None s 1 1 None None None None None None None None None None None None original cell, thus leading to call drop when there is no suitable s neighboring cell. If this parameter 30 is set to a smaller value, 30the MS is likely to be hande Directed Retry Handover None None YES YES None % 85 85 None dB 16 16 None % 90 90 Load Handover None None 10 10 None None 90 90 eighboring cells with heavy traffic cannot be relieved. % 80 If this parameter 80 is set to a too great value, the correspon O Control Algorithm" in "SET None GCELLHOBASIC" is set to HOALGORITHM1, dB the recommended 25 value of this parameter is 25. If "Current HO Control Algorithm" in "SET GCELL O Control Algorithm" in "SET None GCELLHOBASIC" is set to HOALGORITHM1, s the recommended 10 value of this parameter is 10. If "Current HO Control Algorithm" in "SET GCELL HO neighboring Control Algorithm" cells in a short in "SET time; GCELLHOBASIC" if this parameter is set is set to HOALGORITHM1, to dB a smaller value,the congestion recommended in the 5 value serving ofcell thisisparameter difficult toisbe 5. relieved. If "Current HO Control Algorithm" in "SET GCELLH
icro cells are performed, thus affecting the voice quality. If None this parameter is set to a smaller 3 value, congestion may occur3in macro cells. s. If this parameter is set to a smaller value, unnecessary handovers None between micro cells are 2 performed, thus affecting the 2 voice quality. None s 15 15 ality may be decreased due to delayed handover; if this parameter None is set to a greater value,3unnecessary handover may be3 performed. None s 20 20 med frequently; if this set to a difficult, greater value, handovers s mayoccur not be 6 in time and call drops may occur. 6 value, the handover to parameter micro cells is becomes and congestion may inperformed macro cells. smaller value, more handovers may be performed, thus thedB voice quality is decreased. 30 30 None dB 0 0 None None 3 3 None % 80 80 None None 30 30 None ms 7 7 None None NO NO may be prolonged, but the performance of the algorithms None in which the SDCCH MRs are used OFFare enhanced. OFF duration is, the MRs are filtered more completely. Generally, s you are advised to set this parameter 10 to a value smaller than 10 20. by both the setting of "Maximum Assigning Duration" and None the duration for waiting MRs OFF on the SDCCH. The maximum delay OFF is the value of "Maximum Assigning Duration etting of this parameter affects the access delay of parts of MSs. s 40 40 ue of this parameter is, the more MSs select a neighboringNone cell in directed retry. 50 50 ue of this parameter is, the more MSs select a neighboringNone cell in directed retry. 50 50 None None YES YES In None the hot-spot areas, densely populated None urban areas, urban areas, NO suburbs, and rural areas, the recommended value is YES; in the high-speed c None None NO NO None s 10 10 None s 8 8 None dB 25 25 None dB 2 2 None s volume during busy times and 6 the access success rate. 6 dle while non-BCCHs are congested, thus affecting the traffic aller value, unnecessary handovers may be performed, thus sthe voice quality is decreased.4 4 None None NO NO YES and the congestion relieving YES capability is decreased. s short after the handover None is triggered. Thus, few MSs canNone be handed over from TCHF to TCHH, onghandover after the zone handover is triggered. Thus, even thethus MSsmany on the sMSs edge the cellover are from handed 5over 5 voice quality deteriorates. he is enlarged in a short time, and areofhanded TCHF to from TCHH.TCHF to TCHH, and the ged and it in takes a long timeand to initiate a TCHF-TCHH handover. s over from Thus, and congestion relieving is decreased. 1 rgin slowly is increased a short period many MSs are handed TCHF to the TCHH, thus1 affecting thecapability voice quality. nlarged slowly and long time to initiate TCHF-TCHH dBover handover. Thus,tonetwork congestion 1 affectingcannot be relieved rgin is increased in ita takes short aperiod and many MSs aare handed from TCHF TCHH, thus the voice quality. in1time. nlarged andof it the takes a long timemeet to initiate a TCHF-TCHH dB handover. Thus, network congestion 2 quality. cannot be relieved in2time. , MSs atslowly the edge cell can also the handover condition, thus affecting the voice the center of the cell can meet the handover condition. Thus, dB the network congestion cannot 100 be relieved in time. 100
r value, network congestion may occur because the handover may not be performed timely. ameter is set to acell smaller value,the thehandover voice quality may beThus, decreased. dB the network congestion cannot 10 be relieved in time. 10 the center of the can meet condition. ,ameter MSs atisthe edge of the cell can also meet the handover condition, dB thus affecting the voice 20 quality. 20 set to a greater value, the voice quality may be decreased. sue, setMSs to awith smaller value, the congestion relieving capability may dB be decreased. 20 20 poor quality can also meet the handover condition, thus affecting the voice quality. ittle MSs can meet the handover condition. Thus, the network None congestion cannot be relieved 0 in time. 0 eter is set to a greater value, unnecessary handovers may be performed. s 6 6 er value, network congestion may occur because the handover may not be performed timely. ater value, the handover cannot be performed in time and network congestion may occur. 4 4 eter is set to a smaller value, unnecessary handovers may bes performed. None s 5 5 ngestion cannot be relieved in time. If this parameter is set dB to a smaller value, MSs at the edge 4 of the cell and with poor quality 4 also cannot be handed over to the TCHF, th lue, only an MS close to the overlaid subcell can be assigned TCHHs. Thus, timeslots are wasted. n the edge of the overlaid subcell cannot be handed over from dB TCHH to TCHF. Thus, the voice 20 quality of the call is decreased. 20 theoverlaid voice quality. thisbeparameter is set toThus, a smaller value, dB are only MSs inand thethe center of 108 the cell use the TCHH, thus leading 108 to timeslot waste and the network congestio acting of the subcellIfcan assigned TCHHs. timeslots wasted congestion relieving capability is decreased. Ss on the edge of the overlaid subcell also use the TCHH. Thus, dB the voice quality of the call10 is decreased. 10 ting the voice quality; if this parameter is set to a smaller value, None handover is triggered even 3 when the quality is good, thus 3the network congestion cannot be relieved in tim eter is set to a greater value, unnecessary handovers may be performed. er value, the handover cannot be performed in time, and thus s the voice quality is decreased. 6 6 ue, the TCHH-to-TCHF handover cannot be performed in time, thus the voice quality is decreased. eter is set to a smaller value, unnecessary handovers may bes performed. 4 4 d greatly. Thus, the network congestion cannot be relieved % in time. If this parameter is set 85 to a smaller value, calls are handed 85 over to TCHH unnecessarily, thus causing M rgin is increased in a short period and many MSs are handed over from TCHF to TCHH, thus affecting the voice quality. dB 1 1 nlarged slowly and it takes a long time to initiate a TCHF-TCHH handover. Thus, network congestion cannot be relieved in time. rgin is increased in a short period and many MSs are handed over from TCHF to TCHH, thus affecting the voice quality. arged takes long initiate TCHF-TCHH dBhandover. Thus, the network congestion 2 quality. cannot be relieved 2 in time. , MSsslowly at the and edgeitof the acell cantime alsotomeet theahandover condition, thus affecting the voice the center of the cell can meet the handover condition. Thus, dB the network congestion cannot 95 be relieved in time. 95 the center of the cell can meet the handover condition. Thus, the network congestion cannot be relieved in time. , MSs at with the edge the cell also meet handover condition, dB thus affecting voice 30 quality. 30 ue, MSs poorof quality cancan also meet thethe handover condition, thus affecting thethe voice quality. ittle MSs can meet the handover condition. Thus, the network None congestion cannot be relieved 0 in time. 0 of the customer; if this parameter is set to a greater value, % TCHF-TCHH handover is performed 25 only when the traffic volume 25 is high, thus network congestion may occur. None None NO NO ngestion cannot be relieved in time. If this parameter is set dB to a smaller value, MSs at the edge 14 of the cell and with poor 14 quality also cannot be handed over to the TCHF, th cting the voice quality. If this parameter is set to a smaller value, dB only MSs in the center of 103 the cell use the TCHH, thus leading 103 to timeslot waste and the network congestio ting the voice quality; if this parameter is set to a smaller value, None handover is triggered even2when the quality is good, thus2the network congestion cannot be relieved in tim None None NO NO None None NO NO None None NO NO None None NO NO None None NO NO this parameter is set to a smaller value, unexpected handovers s may be performed due to incorrect 2 MR when the call is initially 2 set up, thus affecting handover success rat this parameter is set to a smaller value, unexpected handovers s may be performed due to incorrect 2 MR when the call is initially 2 set up, thus affecting handover success rat med frequently; if this parameter is set to a greater value, handovers s may not be performed 4 in time and call drops may occur. 4 med frequently; if this parameter is set to a greater value, handovers s cannot be performed 4timely, thus leading to call drops. 4 None None YES YES n the Abis interface and BSC load are decreased, thus enhancing None the response speed BTS_Preprocessing and the network performance. BTS_Preprocessing None None NO NO None None YES YES the BSC and the BSC does not perform the handover control. NoneAs a result, handovers cannot Once_ps be performed in time forOnce_ps the conversation and the call drop rate rises. None s 6 6 None s 4 4 ssary handovers may be performed, thus the voice quality iss decreased and ping-pong handover may occur. 6 6 eter value, congestion congestion may may occur occur in in the the macro macro subcell; subcell. eter is is set set to to aa smaller greater value, s 4 4 y handovers may be performed, thus the voice quality is decreased and ping-pong handovers may be performed. ay be performed; if this parameter is set to a smaller value, shandovers may not be performed 6 in time and call drops may 6occur. a greater value, the handover cannot be performed in time sand call drops may occur. 4 4 eter value, unnecessary unnecessary handovers handovers may may be be performed. performed. eter is is set set to to aa smaller greater value, s 6 6 handovers isisdecreased may occur. e handovercannot cannotbebeperformed performedinintime. time,Thus thusthe thevoice voicequality quality decreasedand andcall calldrops drops s 4 may occur. 4 eter value, unnecessary unnecessary handovers handovers may may be be performed. performed. eter is is set set to to aa smaller greater value, s 4 4 value, callthe drops may occur because the handover may not be performed timely. amaller greater value, handover cannot be performed in time sand call drops may occur. 3 3 eter is is setset toto a smaller value, unnecessary performed. meter a greater value, congestion handovers may occur may in thebemacro cell. s 3 3 he handover cannot bethe performed time. call drops may or more handovers triggered. ditions for triggering handoverinand theThus, handover cannot beoccur performed in time. Thus,are call drops may occur or more handovers are triggered. s 2 2 If thisvalue, parameter is set t handovers may be performed. eter is set to a greater unnecessary s 1 may occur. 1 handover cannot cannot be be performed performed in in time. time. Thus, Thus, the the voice voice quality quality is decreased decreased and and call call drops drops ee handover is may occur. s 1 1 eter is set to a smaller value, unnecessary handovers may be performed. None s 1 1 a greater value, the handover cannot be performed in time sand call drops may occur. 1 1 eter value, unnecessary unnecessary handovers handovers may may be be performed. performed. eter is is set set to to aa smaller greater value, s 1 1 a smaller value, the handover cannot be performed in time and call drops may occur.
a greater value, the handover cannot be performed in time and call drops may occur. 1 1 eter is set to a smaller value, unnecessary handovers may bes performed. None dB In densely populated urban 68 areas, the recommended value is 68; in the suburbs, the recommended valu None dB 0 0 None dB In densely populated urban 68 areas, the recommended value is 68; in the suburbs, the recommended valu None dB 69 69 None dB 67 67 None dB 72 72 me desired cells may be excluded from the candidate cells dB and call drops may occur. If this10parameter is set to a smaller 10 value, an unwanted cell may becom None None YES YES None None YES YES None None PWR3 PWR3 None None NO NO e voice quality is good, thus causing the power waste andNone increasing the interference. If this 0 parameter is set to a greater0value, downlink power control may voice quality is bad, thus affecting the voice quality. If thisNone parameter is set to a smaller value, 2 uplink power control may be 2 performed when the voice quali wnlink level is high, thus causing the power waste and increasing dB the interference. If this parameter 28 is set to a smaller value, 28 increase power control may not e downlink level is high, thus causing the power waste and increasing dB the interference. If this 45 parameter is set to a smaller 45value, decrease power control may e voice quality is good, thus causing the power waste and increasing dB the interference. If this 30 parameter is set to a smaller30value, downward power control may e quality is good, thus causing the power waste and increasing dB the interference. If this parameter 18 is set to a smaller value,18upward power control may not be p nal quality is good, thus causing power waste and increasing None the interference. If this parameter 0 is set to a greater value, downward 0 power control is performe voice quality is bad, thus affecting the voice quality. If thisNone parameter is set to a smaller value, 3 upward power control may3be performed when the voice quali None None NO NO None ms 5 5 None ms 5 5 None ms 5 5 None ms 5 5 None None 12 12 None None 2 2 None dB DB2 DB2 None None PDCH PDCH None None 10 10 None None 10 10 None
None
NO
NO
None dB 20 20 None dB 35 35 None None YES YES None None YES YES occur in the underlaid subcell; if this parameter is set to a smaller dB value, assignment success 35 rate may be decreased. 35 hen the channel seizure ratio of overlaid subcell is very high. % Insufficient half-rate channels 70can be assigned to the MS. Thus, 70 the capacity of the BSC is re Flat-HR None None NO NO a transmitter to stop power transmission in the case of noNone voice transfer. This function hasYES the following benefits: YES the consumption of theinMS reducing system interfThis function has the following benefits: adecreasing transmitter topower stop power transmission theand case of noNone voice transfer. Shall_Use Shall_Use decreasing the power consumption of the MS and reducing system interf gestion, but the voice quality is decreased; if this parameter None is set to NO, FR calls cannot NO be switched into HR calls, that NO is, network congestion cannot be None None YES YES l; if this parameter is set to a smaller value, TCHHs are allocated % even when the traffic volume 60 on the cell is light, this affects 60 the voice quality. set to a greater value, the traffic volume during busy timeNone may be decreased. 12 12 ameter set to avalue, smaller voiceduring qualitybusy maytime be decreased. set to aisgreater thevalue, trafficthe volume may be decreased. None 25 25 ameter is set to a smaller value, the voice quality may be decreased. AMR-HR ase, thus decreasing the handover success rate. If this parameter None is set to a greater value, handovers 55 due to bad downlink55quality are less possible to occur, e, thus decreasing the handover success rate. If this parameter Noneis set to a greater value, handovers 55 due to bad uplink quality 55 are less possible to occur, thus et to a greater value, channel resources may be wasted, thus mscausing congestion. 26000 26000 k congestion, but the voice quality is decreased; if this switch Noneis turned off, AMR FR calls cannot NO be switched into AMR HR NOcalls, that is, network congestion eriod when the traffic volume is increased greatly. Thus, the%network congestion cannot be 75relieved in time. If this parameter 75 is set to a smaller value, call ffecting the traffic volume during busy times and the accessssuccess rate. If this parameter10is set to a smaller value, handover 10 success rate may be decrea None None 40 40 None None YES YES
set to a greater value, the traffic volume during busy timeNone may be decreased. 12 12 ameter set to avalue, smaller voiceduring qualitybusy maytime be decreased. set to aisgreater thevalue, trafficthe volume may be decreased. None 25 25 ameter is set to a smaller value, the voice quality may be decreased. ng MOS loss of the customer; if this parameter is set to a greater % value, TCHF-TCHH handover 15 is performed only when the 15traffic volume is high, and thus ne ulty and the data transmission fails before the transmit endms receives a response from the 60 peer end. If timer N200 is set to 60a smaller value, the number of d o a greater value, channel resources may be wasted, thus causing congestion. ms 3000 3000 to a smaller value, the success rate of immediate assignment may decrease. _ #N/A #N/A #N/A o a greater value, channel resources may be wasted, thus causing congestion. ms 10000 10000 set to avalue, smaller value,resources the handover success ratethus maycausing decrease. oeraisgreater channel may be wasted, congestion. 10000 10000 er is set to a smaller value, the handover success rate may ms decrease. None ms 10000 10000 ay be wasted and congestion occurs; if this parameter is setms to a lower value, the assignment 10000success rate may decrease. 10000 ay be wasted, thus causing congestion. If this parameter is set ms to a smaller value, the handover 10000 success rate may decrease. 10000 None ms 10000 10000 et to a greater value, channel resources may be wasted, thus mscausing congestion. 27000 27000 o a greater value, channel resources may be wasted, thus causing ms congestion. 1000 1000 the radio resources are occupied for a too long time, thus affecting the channel resource15000 usage. ms 15000 s set to a smaller value, the call reestablishment success rate decreases. maller value, the channel load may increase and the accessssuccess rate may decrease. 10 10 et to a greater value, channel resources may be wasted, thus mscausing congestion. 34000 34000 et to a greater value, channel resources may be wasted, thus mscausing congestion. 26000 26000 None s 8 8 None s 8 8 None s 15 15 _ #N/A #N/A #N/A congestion may occur in macro cells. If this parameter is sets to a smaller value, unnecessary 40 handovers are performed, thus 40 affecting the voice quality. er is set to a greater value, congestion may occur in the underlaid subcell. s 5 5 arameter is set to a smaller value, ping-pong handovers may occur. original cell, thus leading to call drop when there is no suitable s neighboring cell. If this parameter 10 is set to a smaller value, 10the MS is likely to be hande original cell, thus leading to call drop when there is no suitable s neighboring cell. If this parameter 30 is set to a smaller value, 30the MS is likely to be hande ffecting the traffic volume during busy times and the accessssuccess rate. If this parameter10is set to a smaller value, handover 10 success rate may be decrea r the MS to be handed over to the serving cell, thus leadingsto call drop when there is no 10 suitable neighboring cell. 10 parameter is set to a smaller value, the MS is likely to be handed ffecting the traffic volume during busy times and the accessssuccess rate. If this parameter10is set to a smaller value, handover 10 success rate may be decrea this parameter is set to a greater value, call drops may occur.s 15 15 rervalue, may be performed the underlaid signaling load in the cell is increased. is sethandover to a greater value, congestionfrequently may occurand in the subcell. s 10 10 arameter is set to a smaller value, ping-pong handovers may occur. y occur in the underlaid subcell; if this parameter is set to a smaller s value, handover success 40 rate may be decreased. 40 and congestion may occur in the overlaid subcell; if this parameter s is set to a smaller value, 10handover success rate may be 10decreased. The setting of this parameter affects the GSM Phase II MS. None None None None s 10sec 10sec None None YES YES The coding rate and MOS are affected. dB 15 15 The coding rate and MOS are affected. dB 19 19 The coding rate and MOS are affected. dB 28 28 None None 2 2 None None 3 3 None None 3 3 The coding rate and MOS are affected. dB 12 12 The coding rate and MOS are affected. dB 17 17 The coding rate and MOS are affected. dB 25 25 None None 2 2 None None 3 3 None None 3 3 None None YES YES None dB 23 23 None dB 31 31 None dB 63 63 None None 3 3 None None 4 4 None None 15 15 None dB 23 23 None dB 31 31
None dB 63 63 None None 3 3 None None 4 4 None None 15 15 None None ALG1 ALG1 The ACS may affect the MOS. 4_75KBIT/S-1&5_15KBIT/S-0&5_90KBIT/S-1&6_70KBIT/S-0&7_40KBIT/S-1&7_95KBIT/S-0 None 4_75KBIT/S-1&5_15KBIT/S-0&5_90KBIT/S-1&6_70KBIT/S-0&7_40KBIT/S-1&7_95KBIT/S-0 satisfactory, the coding scheme of higher rate is recommended; None otherwise, the coding scheme 1 of lower rate is recommended. 1 The ACS may affect 4_75KBIT/S-1&5_15KBIT/S-0&5_90KBIT/S-1&6_70KBIT/S-0&7_40KBIT/S-1&7_95KBIT/S-0&10_2KBIT/S-0&12_2KBIT/S-1 the MOS. None 4_75KBIT/S-1&5_15KBIT/S-0&5_90KBIT/S-1&6_70KBIT/S-0&7_40KBIT/S-1&7_95KBIT/S-0&10_2KBIT/S-0&12 satisfactory, the coding scheme of higher rate is recommended; None otherwise, the coding scheme 0 of lower rate is recommended. 0 old is not reasonable, the algorithm can be used to dynamically None adjust the AMR uplink rate NOto increase the uplink speech NOMOS. None None 60 60 None None 2 2 None None 8 8 None None 2 2 ld is not reasonable, the algorithm can be used to dynamically Noneadjust the AMR downlink rate NO to increase the downlink speech NO MOS. None None 60 60 None None 2 The recommended value 2is 8 when DTX is disabled. None None 8 The recommended value is 14 when DTX is enabled. None None 2 2 The ACS may affect the MOS. None 6_60KBIT/S-1&8_85KBIT/S-1&12_65KBIT/S-1 6_60KBIT/S-1&8_85KBIT/S-1&12_65KBIT/S-1 None dB 21 21 None dB 25 25 None None 2 2 None None 2 2 None dB 12 12 None dB 18 18 None None 2 2 None None 2 2 satisfactory, the coding scheme of higher rate is recommended; None otherwise, the coding scheme 2 of lower rate is recommended. 2 er is set to on, the MOS of a MS-initiated and MS-terminated Nonecall is improved. DISABLE DISABLE None None UNFIXED UNFIXED None None CS1 CS1 None % 5 5 None % 2 2 None % 2 2 None % 10 10 None % 5 5 None % 5 5 None None UNFIXED UNFIXED None None CS2 CS2 None % 5 5 None % 2 2 None % 2 2 None % 10 10 None % 5 5 None % 5 5 None None UNFIXED UNFIXED None None MCS2 MCS2 None None UNFIXED UNFIXED None None MCS6 MCS6 None None UNFIXED UNFIXED None None MCS6 MCS6 None None UNFIXED UNFIXED None None DAS6 DAS6 None None 2 2 hus burdening the BSC6900. If this parameter is set to a greater s value, the status of RF resources 15 cannot be updated in time; 15 therefore, the BSC6900 canno
burdening the BSC6900. If this parameter is set to a greater%value, the BSC6900 cannot handle 80 the exceptions on the BTS 80in time, thus causing network con performance of the system. A greater value may decreaseNone the number of paging blocks, paging 1 capacity, and paging success 1 rate. the number of MSs on each paging subchannel decreases. ms This can prolong the average 2_M_PERIOD service life of MS batteries 2_M_PERIOD but increase the delay of paging message value, the radio resource status is reported too frequently, thus increasing the load of the BSC. esource status is not immediately reported and thus the BSCs cannot handle the interference 10 to the BTS in time. 10 .sIfthe thisoverload parameter is set totoathe greater the system BTS sends overload s usage indication messages to15 thedifficult BSC onlytowhen a large number 15 of MSs access the network and when the sys messages BSC.value, Thus, the resource decreases and MSs are access the network. 5000occur. 5000 e, the BTS sends an overload message to the BSC at a longNone interval. Thus, system faults may None None YES YES None None YES YES None None 5 5 None
None
110
110
None None 105 105 None None 98 98 None None 92 92 None None 87 87 None None 85 85 None ms 20 20 None s 6 6 None s 4 4 ssary handovers may be performed, thus the voice quality iss decreased and ping-pong handover may occur. 6 6 eter value, congestion congestion may may occur occur in in the the macro macro subcell; subcell. eter is is set set to to aa smaller greater value, s 4 4 y handovers may be performed, thus the voice quality is decreased and ping-pong handovers may be performed. ay be performed; if this parameter is set to a smaller value, shandovers may not be performed 6 in time and call drops may 6occur. a greater value, the handover cannot be performed in time sand call drops may occur. 4 4 eter value, unnecessary unnecessary handovers handovers may may be be performed. performed. eter is is set set to to aa smaller greater value, s 6 6 handovers isisdecreased may e handovercannot cannotbebeperformed performedinintime. time,Thus thusthe thevoice voicequality quality decreasedand andcall calldrops drops mayoccur. occur. s 4 4 eter value, unnecessary unnecessary handovers handovers may may be be performed. performed. eter is is set set to to aa smaller greater value, s 4 4 value, callthe drops may occur because the handover may performed timely. amaller greater value, handover cannot be performed in time andnot callbedrops may occur. s 3 3 eter is is setset toto a smaller value, unnecessary performed. meter a greater value, congestion handovers may occur may in thebemacro cell. s 3 3 he handover cannot bethe performed time. call drops may occur or more handovers are triggered. ditions for triggering handoverinand theThus, handover cannot are triggered. s be performed in time. Thus, call 2 drops may occur or more handovers 2 If thisvalue, parameter is set t handovers may be performed. eter is set to a greater unnecessary s 1 1 handover cannot cannot be be performed performed in in time. time. Thus, Thus, the the voice voice quality quality is is decreased decreased and and call call drops drops may may occur. occur. ee handover s 1 1 eter is set to a smaller value, unnecessary handovers may be performed. None s 1 1
er of RACH conflicts in a cell is large, T should be set to a small Nonevalue. The increase in T and TX_32 S prolongs the access time TX_32 of an MS, thus affecting the acces
value, the call drop rate decreases but the traffic volume and dBmpaging success rate are affected. -109 -109 er is set to a smaller value, the random access success ratedB may decrease. 16 16 meter can be set to 4 or 7 to improve the success rate of MS None access. In the areas where4_Times congestion occurs or in the micro 4_Times cells where the traffic volume is hi None None 2 2 None None Permit Permit value, the call drop rate decreases but the traffic volume and dB paging success rate are affected. 8 8 MS re-calculates C1 and C2 of all non-serving cells (neighboring None cells). The MS constantlyYES checks whether a cell reselection YES is required by checking following None dB 0 0 None None 0 0 paging during the location update, thus decreasing the call completion rate in the system. dBthe signaling load on the SDCCH. 6dB 6dB value, pingpong location update may occur, thus increasing If th The setting of this parameter affects the GSM Phase II MS. None None None None None NO NO None 1 1 None 1 1 None 1 1 None 1 1 None 1 1 None 1 1 If any of these parameters is None 1 1 disabled, i.e. set to "0", the None 1 1 call drop due to that 1 1 particular cause will not be None pegged in respective None 1 1 performance counter and hence will not be visible in overall DCR%
If any of these parameters is disabled, i.e. set to "0", the call drop due to that particular cause will not be pegged in respective performance counter and 1 1 hence will not be visible in None overall DCR% None 1 1 None 1 1 None 1 1 None 1 1 None 1 1 a transmitter to stop power transmission in the case of no voice transfer. This1 function has the following benefits: None 1 reasing the power consumption of the MS and reducing system interference1 None 1 nsumption of the BTS, reducing system interference, and reducing intermodulation inside the BTS tive, the inter-frequency interference is reduced and the network None quality is improved. YES YES None A5/0-1&A5/1-0&A5/2-0&A5/3-0&A5/4-0&A5/5-0&A5/6-0&A5/7-0 None A5/0-1&A5/1-0&A5/2-0&A5/3-0&A5/4-0&A5/5-0&A5/6-0&A5/7-0 nsumption of the BTS, reducing system interference, and reducing intermodulation inside the BTS tive, the inter-frequency interference is reduced and the network None quality is improved.Shall_Use Shall_Use blishment rage call drop can decrease rate decreases. the callThis drop setting rate but is applicable waste channel in suburbs None resources. or urban areas with poor YES coverage. Call reestablishment, however, may take a long time. Therefore, the s None None NO NO None None YES YES The default value for the BTS30, BTS312, BTS3012A, or BTS3006A is YES, which can be modified. None None The default YES value for other types of BTS is NONE, which cannot be modified. None None YES YES None None YES YES None bit 20 20 None bit 4 4 None None NO NO None dB 0 0 None dB 0 0 None None COMMON COMMON None % 0 0 None None NO NO ameter is set to ENABLE, the MOS can be increased in a call None between MSs. DISABLE DISABLE er is set to on, the MOS of a MS-initiated and MS-terminated Nonecall is improved. DISABLE DISABLE
None ms 32 32 ss rate. If this parameter is set to a greater value, paging None overload may occur and the paging 4 success rate may decrease.4 None None DISABLE DISABLE nnel resources may be wasted; if this parameter is set to lower ms value, the call drop rate may 48 increase. 48 nnel resources may be wasted; if this parameter is set to lower ms value, the call drop rate may 32 increase. 32 nnel resources may be wasted; if this parameter is set to lower ms value, the call drop rate 64_Times may increase. 64_Times nnel resources may be wasted; if this parameter is set to lower ms value, the call drop rate 52_Times may increase. 52_Times e network load; however, L0_FORBID-0&L1_FORBID-0&L2_FORBID-0&L3_FORBID-0&L4_FORBID-0&L5_FORBID-0&L6_FORBID-0&L7_FORBID-0&L8_FORBID-0&L9_FORBID-0 some users may be adversely L0_FORBID-0&L1_FORBID-0&L2_FORBID-0&L3_FORBID-0&L4_FORBID-0&L5_FORBID-0&L6_FORBID-0&L7_FORBID-0&L8_ affected. None Therefore, it is recommended that this parameter be disabled. MS access classes, thus preventing some MSs from accessing L11_FORBID-0&L12_FORBID-0&L13_FORBID-0&L14_FORBID-0&L15_FORBID-0 None the network. It is recommended L11_FORBID-0&L12_FORBID-0&L13_FORBID-0&L14_FORBID-0&L15_FORBID-0 that this parameter be not used. None NO smaller value, the radio link is vulnerable to failure, thus None call drops are likely to occur. NO t release the connection for a long time, thus decreasing the msresource usage. The parameter 52_Times is valid in the downlink. 52_Times it is measurement recommendedresult that this parameter setattothe Yes.band For None other cells the dual-band YES it isposition. recommended that this parameter to No. the MS reports the 3. W the ofNone the neighborbecell serving the in current cell in thenetwork, redundant If the redundant position isbe stillset available, m or the the measurement frequency band, result the ofrecommended the neighboring value cell at is 0; theif band theNone traffic serving volume the current on eachcell frequency in the 0redundant band is significantly position. If uneven the redundant and a frequency position isband still available, is preferred thefor MSanreports MS, thethr This helps increase the call completion rate and improve the None QoS of the network. The successful YES reassignment, however,YES results in an increase in the access delay of MSs a None None NO NO None None NO NO None None 5 5 None None NO NO
None None IR IR e BEP history information sent by the MS is; otherwise, the None smaller the proportion of the BEP 5 history information sent by5the MS is. k EGPRS rate may be increased. If this parameter is not setNone to "UNFIXED", the coding scheme UNFIXED cannot be selected dynamically UNFIXEDaccording to the radio environment, and thus g the PS service rate is lower. If this parameter is set to a lower None value and the quality onMCS2 the Um interface is good, the speed MCS2 of increasing the PS service rate is lower. k EGPRS rate may be increased. If this parameter is not setNone to "UNFIXED", the coding scheme UNFIXED cannot be selected dynamically UNFIXEDaccording to the radio environment, and thus g the PS service rate is lower. If this parameter is set to a lower None value and the quality onMCS6 the Um interface is good, the speed MCS6 of increasing the PS service rate is lower. PRS2-A rate may be increased. If this parameter is not setNone to "UNFIXED", the coding scheme UNFIXED cannot be selected dynamically UNFIXEDaccording to the radio environment, and thus g the PS service rate is lower. If this parameter is set to a lower None value and the quality onMCS6 the Um interface is good, the speed MCS6 of increasing the PS service rate is lower. PRS2-A rate may be increased. If this parameter is not setNone to "UNFIXED", the coding scheme UNFIXED cannot be selected dynamically UNFIXEDaccording to the radio environment, and thus g the PS service rate is lower. If this parameter is set to a lower None value and the quality on DAS6 the Um interface is good, the speed DAS6 of increasing the PS service rate is lower.
nded that this parameter be set to 2, so that the uplink rate None is increased. 2 2 perform CS and PS services simultaneously. However, when None CS services are released, UNSUPPORT the TBFs are disrupted temporarily. None perform PS services In addition, None when CS is services UNSUPPORT the TBFs are not disrupted. None yanone uplinkCS PSand channel can besimultaneously. used; thus, the uplink PS bandwidth limited.are released, . It also supports the maximum timeslot configuration of one None CS channel, two uplink UNSUPPORT PS channels, and one downlink PSNone channel. This better meets the requirements of app None None UNSUPPORT None UPPORT", the downlink rate can be increased. This function None requires the support of the UNSUPPORT MS. None this parameter is set to "SUPPORT", the delay is shortened. None UNSUPPORT None ", the outgoing inter-RAT PS handover is allowed. This function None requires the support UNSUPPORT of the MS. None T, the coming inter-RAT PS handover is allowed. This function None requires the support ofUNSUPPORT the MS. None eter is set to a smaller value, unnecessary handovers may be performed. reater value, dropsvalue, may occur becausehandovers the handover dBperformed. not be performed timely. 50 50 eter is set to acall smaller unnecessary may may be reater value, call drops may occur because the handover may dB not be performed timely. 50 50 None m/s 35 35 None ms 4 4 None ms 4 4 None None 1 1 op when there is no suitable neighboring cell. If this parameter s is set to a smaller value, the 10 MS is likely to be handed over 10 to the original cell again, thus leading to ping-po r the MS to be handed over to the original cell, thus leading to call drop when there is no suitable neighboring cell. dB 63 63 e,reater the MS is likely to be handed over to the original cell again, thus leading to ping-pong handovers. value, call drops may occur because the handover may not be performed timely. eter is set to a smaller value, unnecessary handovers may be dBperformed. 68 68 MS handover to the cell in the direction opposite to the moving None direction during fast handover NO is reduced. NO great value, there are strict restrictions on the judgementNone of the MS moving direction. 3 3 great value, there are strict restrictions on the judgementNone of the MS moving direction. 3 3
By: Aqeel Hasan Khan O WARID (South) CSSON PAKISTAN
Description
Huawei Recommneded Values
Location area code (LAC). MSs can freely move in the local locatio Check In/Out of band ARFCNs etc Network color code that is provided by the telecom operator. The This parameter is an information element (IE) in the system informa _ _ _ _ _ _ Assignment priority level of the channel. If this parameter is less, t board can exceed the maximum output power within a short time will periodically report the number of times for timeslot shutdown
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ FOR EDGE/GPRS traffic _ For EDGE/GPRS traffic whenever needed _ For EDGE/GPRS traffic whenever needed _ this channel at the same priority. If this parameter is set to EGPRSPRICH, the EDGE MSs have the priority to use this channel. None If this parameter is set to EGPRSSPECH, only Supporting full rate TCH _ Supporting full rate TCH _ the TRX power. During fine static adjustment of the TRX power, the BSC adjusts the TRX power at a step of 0.2 dB. Default Power Level 0 Power Type None TRX Priority L0 o shut down the power amplifier of the TRX automatically to save power when the BTS switches from the mains to batteries ENABLE TCH Rate Adjust Allow NO TRX 8PSK Level 0 Receive Mode NONE RF transmission mode of the TRX NONE power amplifier of the TRX dynamically according to the traffic.This parameter cannot be set to YES for the TRX that carries NOthe main BCCH which the output power of the multi-density TRX board can exceed the maximum output power within a short time None the TRX. To enable a loose frequency multiplexing mode such as 4x3 multiplexing, set this parameter to LOOSE otherwise LOOSE TIGHT. Priority of Shut Down TRX L0 Power Overload Threshold In Ho. Out 15 Power Overload Threshold In Ho. In 8 16QAM Transmitter Power Reduce Level 0 32QAM Transmitter Power Reduce Level 0
Whether to enable a handover between signaling channels NO Whether to allow inter-BSC SDCCH handovers NO to a neighboring cell in the same procedure as the handover.The directed retry is an emergency measure applicable to abnormal YES traffic peaks in some areas of a radio netw Whether to enable the no-downlink measurement report handover algorithm. NO ermines whether the timing advance (TA) is higher than the predefined TA threshold. When the TA is higher than the predefined YES TA threshold, a TA handover is triggered eceive level is higher than the receive threshold while the transmit quality is lower than the interference handover qualityYES threshold, that is, when the MSs are subject to a the emergency handover algorithm in case the receive level of the MSs drops rapidly, thus preventing call drops None ver depends on the uplink and downlink transmit quality (measured by using BER). If the uplink or downlink BQ exceeds the YES BQ handover threshold, emergency BQ hando some of the calls in the underlay subcell to the overlay when the load of the underlay is higher than this parameter YES Edge HO Allowed YES Whether to allow the fast handover algorithm NO hether to enable "Triggering the quick PBGT algorithm only when an MS is far from the BTS NO r algorithm. The fast moving micro-cell handover algorithm enables fast moving MSs to switch over to macro-cells, thusNone reducing the handover times. Whether to allow underlay-to-overlay edge handovers YES er and inter-level handover algorithm is achieved through the setting of different layers and priorities for cells, which switches YES traffic to cells of a higher precedence
Whether to use the PBGT handover algorithm. PBGT handovers are based on path loss Whether to enable the concentric cell handover algorithm Whether to enable the algorithm for the load-based AMR handover between full rate and half rate Whether to use handover algorithm generation 1 or 2 currently able the algorithm for the uplink and downlink receive quality based AMR handover from half rate to full rate
YES NO NO None NO a
neighbor cell is greater than Min DL Level on Candidate Cell, the neighbor cell can be listed in the candidate cell queue for 10handover 10 If the uplink received signal level of a neighbor cell is greater tha 30the UL RX_LEV Upper Threshold in Huawei II p over to a new cell. This parameter is used for the MS Power Prediction after HO. This parameter should be consistent with 30 al strength at the BTS expected in power forecast, which helps to compute the initial transmit power of an MS 30 al strength at an MS expected in power forecast, which helps to compute the initial transmit power of the BTS
PBGT Watch Time 6 PBGT Valid Time 4 PBGT HO Threshold urban areas,68; suburbs,72. NO hether to enable "Triggering the quick PBGT algorithm only when an MS is far from the BTS Whether to use the PBGT handover algorithm. PBGT handovers are based on path loss YES
eceive level is higher than the receive threshold while the transmit quality is lower than the interference handover qualityYES threshold, that is, when the MSs are subject to a a or the interference handover of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rate Full Rate. 60 or the interference handover of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rate Full Rate. 50 or the interference handover of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rate Full Rate. 49 or the interference handover of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rate Full Rate. 48 or the interference handover of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rate Full Rate. 47 or the interference handover of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rate Full Rate. 46 or the interference handover of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rate Full Rate. 45 or the interference handover of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rate Full Rate. 44 or the interference handover of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rate Full Rate. 43 or the interference handover of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rate Full Rate. 42 or the interference handover of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rate Full Rate. 41 or the interference handover of Non-AMR FR voice services. AMRFR refers to Adaptive Multi-Rate Full Rate. 40 t of offset is added to the corresponding grade of the received signal quality for the interference handover of non-AMR FR voice 5 services. P out of N measurement reports meet the condition for interference handovers, a concentric circle handover is triggered. This 2 parameter corresponds to the P in the P/N P out of N measurement reports meet the condition for interference handovers, a concentric circle handover is triggered. This 3 parameter corresponds to the N in the P/N the interference of the strongest N existing calls on the newly-established call being evaluated. This parameter corresponds 20 to the above-mentioned N. S sends a radio resource indication message to the BSC. The averaging result is used for classifying the interference levels on 20idle channels into five interference bands. For Specifies an interval between two consecutive interference handovers 15 erf.of DL Level Threshold" and the downlink quality level is equal to or greater than "Interf.of DL Qual.Threshold", downlink35 interference exists. The value range 0 to 63 is m evel is equal to or greater than "Interf.of DL Level Threshold" and the downlink quality level is equal to or greater than "Interf.of 40 DL Qual.Threshold", downlink interference uplink level is not smaller than "Interf.of UL Level Threshold" and the uplink quality of the channel is not less than "Interf.of 40 UL Qual. Threshold", the uplink interference e uplink level is not smaller than "Interf.of UL Level Threshold" and the uplink quality of the channel is not less than "Interf.of 30 UL Qual. Threshold", the uplink interference e Period during which interference levels are averaged 20
Allow Bad Quality HO YES Penalty Time after BQ HO 10 Penalty Level after BQ HO 63 nding TCH call drop counter is incremented by one if the downlink quality carried in the last MR is greater than the value of 55this parameter. onding TCH call drop counter is incremented by one if the uplink quality carried in the last MR is greater than the value of55 this parameter. on quality threshold of MS. The critical reselection needs to be performed when the ratio of the accumulatively calculated30 number of times and the number of times in th Edge HO Allowed Edge HO UL RX_LEV Threshold Edge HO DL RX_LEV Threshold Handover Algorithm II Edge HO Watch Time Handover Algorithm II Edge HO Valid Time Handover Algorithm I Edge HO Watch Time Handover Algorithm I Edge HO Valid Time
YES 10 20 1 1 6 4
Inner Cell EDGE HO Enable
YES
TA HO Allowed YES Penalty Level after TA HO 63 TA HO Watch Time 1 of this parameter and the timing advance (TA) is smaller than the value of "Cell Weak Coverage TA Threshold" in more than None 30% measurement reports, the cell is defined a of this parameter and the timing advance (TA) is greater than the value of "Cell Over Coverage TA Threshold" in more than None 20% measurement reports, the cell is defined a termines whether the channel assignment or handover is performed in the cell by comparing the TA and the value of this None parameter. The value of this parameter is determ Penalty Time after TA HO 30
e directed retry. The directed retry is to hand over an MS to a neighboring cell in the same procedure as the handover YES Directed Retry Load Access Threshold 85 MINPWRLEVDIRTRY 16 Cell Directed Retry Forbidden Threshold 90 10 er than CPU flow control threshold 80% corresponds to level 2. An increase of 5% means an increase of902 levels. Level 10 is the highest. The level value can be 0, 2, 4, 6, 8, load handover is triggered when the traffic load in a cell is greater than the value of this parameter. 80 ue m"ofinthis "SET parameter, GCELLHOBASIC" thereceive celliscan set admit to of HOALGORITHM1, the current users handed theover recommended from other value cells with of this higher parameter load. Otherwise, isThreshold" 25. If "Current the HO rejects Control such Algorithm" users.Threshold" in "SET GCELLHOBASIC" is set to rformed only when the level the serving cell is in the range "Edge HO DL RX_LEV tocell "Edge HO DL RX_LEV + "Load HO Bandwidth" m" nly in when "SET the GCELLHOBASIC" level difference is between set to HOALGORITHM1, the neighboring the cell recommended and the serving value cell of is between this parameter ("Inter-cell is 10. HO If "Current Hysteresis" HO Control 64) "Load Algorithm" HO Bandwidth" in "SET GCELLHOBASIC" and ("Inter-cell isHO set Hys to ddenly increase the load of the processor. Under some circumstances, congestion occurs in the cell, which will result in call drop. To solve this problem, the BSC uses the h hm" in "SET GCELLHOBASIC" is set to HOALGORITHM1, theeach recommended value of this parameter is 5. If "Current HO Control Algorithm" in "SET GCELLHOBASIC" is set to This parameter indicates the duration of handover level. after every "Load HO Step Period". In this way, all the calls in the current serving cell whose receive level 3 is in the range "Edge HO DL RX_LEV Threshold" to "Edge HO DL R
passes through N out of P micro-cells lately, the BSC enables the fast moving micro-cell handover algorithm. 2 This parameter corresponds to the N in the P/N criteria. passes through N out of P micro-cells lately, the BSC enables the fast moving micro-cell handover algorithm. 15 This parameter corresponds to the P in the P/N criteria. he MS crosses the cell in a time period shorter than this threshold, the BSC concludes that the MS quickly 3 passes through the cell. Otherwise, it concludes that the MS slo ertain time threshold, these two intra-cell handovers are considered consecutive. When a certain number 20 of intra-cell handovers occur consecutively, intra-cell handovers after the number of consecutive intra-cell handovers reaches the maximum. Intra-cell handover can be 6 conducted again only after this duration. e twice intra-cell handover events during this interval are considered consecutive handover events. 30 ng cells of the cell where a fast-moving MS is located. The neighboring cells must be located at the Macro, 0 Micro, or Pico layer other than the Umbrella layer. sorting based on the downlink receive level of the candidate cells. But before doing that, the system subtracts 3 "K Bias" from the actual downlink receive level of the cand eds to level be performed (handover non-BCCH to BCCH), the downlink receive quality must be smaller 80TIGHT than the value of this parameter. uality after filtering is lowerfrom thanthe "Quality Thresh. for Assigning Main BCCH Carrier Channel Under BCCH". 3. The load is higher than "Intracell Load timeouts Thresholdbefore of TIGHT BCCH". ge, thusnon-BCCH ensuring correct traffic transmission forNon theMain MS. IfBCCH the timer a SAMB frame is 30 received from the MS, the BTS retransmits the Physical Information m For details, see protocols 08.58 and 04.08. 7 AMB frame from MS, the BTS resends physical information to the MS and restarts the timer T3105. The NOmaximum times for resending physical information is "Max Resen Whether to use external 2G neighboring cells as the target cells of load handovers OFF her a call must camp on the SDCCH for a specific duration before being assigned with a traffic channel.10 Duration for a call camping on the SDCCH before being assigned with a traffic channel. OFF Switch for assigning the channel of a better cell to the MS during MS access. 40 Rs in the MS assigning procedure. The BSC assigns the channel of the serving cell to the MS if the best 50 cell is not selected within the duration specified by this parameter. Uplink quality level threshold for the MS to be assigned with a channel of the better cell. 50 cell during assignment. If the downlink quality of an MS is higher than this threshold, the MS preferentially YES selects the neighboring cell of higher quality during assignmen Whether In thetohot-spot adjust the areas, candidate denselycell populated queue tourban give priority areas, urban to intra-BSC/MSC areas, suburbs, handover and rural areas, the recommended value is YES; in the high-speed circumstances, the ifies whether the intra-cell handover is enabled. Note: A forced intra-cell handover is not subject to this NOparameter. , thus improving the network performance. The load handover is used as an emergency measure instead 10 of a primary measure to adjust abnormal traffic burst in partial ar n the condition for intra-cell F-H handovers is met for P seconds during N seconds, an intra-cell F-H handover 8 is triggered. This parameter corresponds to the N in the P/N c nayer thehandover conditionthreshold for intra-cell F-Hserving handovers met for P seconds during N- seconds, an HO intra-cell F-H handover 25 is triggered. This parameter corresponds to the P in the P/N c of the cell is = "Inter-layer HO threshold" "Inter-layer Hysteresis"; over a neighboring = "Inter-layer HO Threshold" + "Adjacent Cell Inter-layer HO Hysteresis" 2 - 64. ayer threshold handover of threshold of the cell serving cell = "Inter-layer HO threshold" - "Inter-layer HO Hysteresis"; over threshold of a neighboring cell = "Inter-layer HO threshold" + "Adjacent Cell Inter-layer HO Hysteresis" 6 - 64. t is, the TIGHTBCCH handover can be triggered only if P seconds among N seconds meet the triggering4conditions. This parameter corresponds to N in the P/N criterion. t is, the TIGHT BCCH handover can be triggered only if P seconds among N seconds meet the triggering NOconditions. This parameter corresponds to P in the P/N criterion. overlaid subcell and balances the load between the overlaid subcell, underlaid subcell, and neighbor cell. YES Therefore, the algorithm helps to decrease the interference, to im Whether to enable the algorithm for the handover to a better cell 5 ater than the preset threshold, the calls that meet the conditions for the handover from full rate to half 1 rate are handed over from full rate to half rate in this duration. he callsfull that meet therate, conditions for the handover from fullcurrent rate topath half loss rateoffset are handed overtoinchoose "H-F Ho 1 Duration". This parameter bandwidth to be handed o from rate to half this parameter determines the by which the MSs to undergo handoverspecifies from fullthe rate to half rate. uration handover full ratedetermines to half rate/"F-H Ho Period" + 1) x "AMR F-Hto Hochoose Pathloss er from for fulltriggering rate to half rate, thisfrom parameter the current ATCB offset by which the2Adjust MSs toStep" undergo handover from full rate to half rate. uration for triggering handover from full rate to half rate/"F-H Ho Period" + 1) x "AMR F-H Ho ATCB Adjust 100 Step" rate to half rate. If the path loss of an AMR full rate call is equal to or less than this threshold, the AMR10 call is handed over from full rate to half rate.
Path loss difference between the overlaid and underlaid subcells 20 te to half rate. If the ATCB of an AMR full rate call is equal to or greater than this threshold, the AMR call 20 is handed over from full rate to half rate. ATCB difference between the overlaid and underlaid subcells 0 the uplink and downlink receive quality levels of an AMR full rate call are equal to or less than this threshold, 6 theisAMR call is handed over from full rate to half rate. the conditions for the handover from full rate to half rate are met for P seconds within N seconds, the handover triggered. 4 This parameter specifies the number N. the conditions for the handover from full rate to half rate are met for P seconds within N seconds, the handover is triggered. 5 This parameter specifies the number P. ess than the preset threshold, the calls that meet the conditions for the handover from half rate to full 4rate are handed over from half rate to full rate in this duration. m half rate to full rate. If the ATCB of an AMR half rate call is less than this threshold, the AMR call is handed 20 over from half rate to full rate. ATCB difference between the overlaid and underlaid subcells 108 half rate to full rate. If the path loss of an AMR half rate call is greater than this threshold, the AMR call10is handed over from half rate to full rate. Path loss difference between the overlaid and underlaid subcells 3 te to full rate. If the receive quality level of an AMR half rate call is greater than this threshold, the AMR 6 call is handed over from half rate to full rate. the conditions for the handover from half rate to full rate are met for P seconds within N seconds, the handover is triggered. This parameter specifies the number N. 4 the conditions for the handover from half rate to full rate are met for P seconds within N seconds, the handover is triggered. This parameter specifies the number P. 85 nther the with load other of a cell is no smaller than this threshold, non-AMR F-H handovers are triggered in the cell. 1 target users for F-H handovers. two parameters: "F-H Ho Period" and period of triggering a F-H handover, thus selecting 2 ffset = (Period of triggering a F-H handover / "F-H Ho Period" + 1) * "Non-AMR F-H Ho Pathloss Adjust Step". period of triggering a F-H handover, thus selecting target users for F-H handovers. ATCB offset = (Period95 of triggering a F-H handover / "F-H Ho Period" + 1) * "Non-AMR F-H value of non-AMR full rate voice is no larger than this parameter, the condition for non-AMR F-H handovers 30 is met. lue of non-AMR full rate voice is no smaller than this parameter, the condition for non-AMR F-H handovers 0 is met. en the uplink receive quality and downlink receive quality of a user are both smaller than this parameter, 25 a F-H handover is triggered for the user. n the load of a cell is no larger than this threshold, non-AMR H-F handovers are triggered in the cell. NO Whether to trigger non-AMR H-F handovers according to the uplink and downlink receive quality 14 alue of non-AMR half rate voice is no larger than this threshold, the condition for non-AMR H-F handovers 103 is met. value of non-AMR half rate voice is no smaller than this threshold, the condition for non-AMR H-F handovers 2 is met. F handovers. When the receive quality of a user is no smaller than this parameter, the user meets the NO condition for H-F handovers. This parameter specifies whether the handover from 2G cells to 3G cells is allowed. NO This parameter specifies whether the handover from 3G cells to 2G cells is allowed. NO Whether to reserve resources for the incoming BSC handover on the Iur-g interface NO This parameter specifies whether the reselection from 2G cells to 3G cells is allowed. NO Whether to perform path loss-based sorting in a better cell handover algorithm 2 be handed over to another channel only if the time during which the MS occupies the TCH is longer than 2 the period specified by this parameter. be handed over to another channel only if the time during which the MS occupies the SDCCH is longer 4 than the period specified by this parameter. the two consecutive handover decisions of an MS. The BSC cannot make a handover decision during the minimum interval. ing a handover command to an MS. The BSC allows the MS to make a second handover decision only after 4 the timer expires. This parameter specifies the duration of the en consecutive performed by ancell MS.toDuring thisthe interval, no attempting emergency to handover YES is the allowed. on two of the target cell,emergency the systemhandovers needs to punish the target prevent MS from switch to target cell again. ily occur when handovers are of more TA or bad quality. In these cases, the system needs to punish BTS_Preprocessing the current serving cells. able the BTS to preprocess measurement reports. This parameter determines where to conduct powerNO control. to the BSC after pre-processing them. When this parameter is set to YES, the BTSs send the original and YESpre-processed measurement reports to the BSC. Whether to enable the BTS to transfer BTS/MS power class to the BSC Once_ps 6 Frequency at which the BTSs submit pre-processed measurement reports to the BSC Edge HO AdjCell Watch Time 4 Edge HO AdjCell Valid Time 6 Layer HO Watch Time 4 Layer HO Valid Time 6 PBGT Watch Time 4 PBGT Valid Time 6 Better Cell HO Watch Time 4 Better Cell HO Valid Time 4 Quick Handover Static Time 3 Quick Handover Last Time 3 HCS HO Watch Time 2 HCS HO Valid Time 1 BQ HO Watch Time 1 BQ HO Valid Time 1 TA HO Watch Time 1 TA HO Valid Time 1 UL BQ HO Static Time 1
UL BQ HO Last Time urban areas,68; suburbs,72. Inter-cell HO Hysteresis 0 Min Access Level Offset urban areas,68; suburbs,72. PBGT HO Threshold 69 BQ HO Margin 67 Adjacent Cell Inter-layer HO Hysteresis 72 Directed Retry Handover Level Range 10 neighbor cell is greater than Min DL Level on Candidate Cell, the neighbor cell can be listed in the candidate cell queue for YEShandover UL PC Allowed YES DL PC Allowed PWR3 Power Control Switch NO 0.2dB Power Control Enable 0 DL Qual. Lower Threshold 2 DL Qual. Upper Threshold 28 DL RX_LEV Lower Threshold 45 DL RX_LEV higher Threshold 30 UL RX_LEV Upper Threshold 18 UL RX_LEV Lower Threshold 0 UL Qual. Upper Threshold 3 UL Qual. Lower Threshold NO Power Forecast Allowed 5 Filter Length for DL RX_LEV 5 Filter Length for UL RX_LEV 5 Filter Length for UL Qual. 5 Filter Length for DL Qual. 12 ected signal receiving strength on the BTS side when GPRS dynamic power control is implemented. 2 strength of power control. When sampling must be performed (NAVGI) times before the MS obtains the efficient measurement DB2 signal BTS power attenuation on the measured PBCCH PDCH red receiving power. It is used to set the measured receiving power level of the channel and control the power of the uplink 10 Filter period of the signal strength in the packet transmission mode of the MS 10 Filter period of the signal strength in the packet idle mode of the MS NO Concentric Circles HO Allowed
20
a OtoU HO Received Level Threshold 35 UtoO HO Received Level Threshold YES OL to UL HO Allowed YES UL to OL HO Allowed 35 smaller than Assign-optimum-level Threshold and the TA is smaller than TA Threshold of Assignment Pref otherwise, assigns 70 channels on the underlay to ensure successfu cell. If the channel seizure ratio of overlaid subcell is greater than the value of this parameter, half-rate channels are assigned. Otherwise, full-rate channels are assigned. NO Support Half Rate YES HR Use Downlink DTX Shall_Use HR Uplink DTX NO Non-AMR F-H Ho Allowed YES Intracell F-H HO Allowed 60 TCH Traffic Busy Threshold 12 H2F HO Threshold 25 F2H HO Threshold 55 DL Qual. Limit for AMR HR 55 UL Qual. Limit for AMR HR _ WAITFORRELINDAMRHR NO AMR F-H Ho Allowed 75 AMR F-H Traffic Threshold 10 Penalty Time after AMR TCHF-H HO Fail 40 ReceiveQualThrshAMRHR YES Intracell F-H HO Allowed 12
H2F HO Threshold 25 F2H HO Threshold 15 AMR H-F Traffic Threshold 60 is parameter specifies the timeout value of timer T200 used for the SDCCH over the Um interface _ fter sending an Immediate Assignment message. If T3101 expires before the BSC receives an Establish Indication message, the _ BSS releases the seized SDCCH. _ Timer started after the BSC delivers a handover command in an intra-BSC inter-cell handover _ Timer started after the BSC delivers a handover command in an intra-BSC intra-cell handover. _ e when the BSC waits for an HO REQ ACK message after a Handover Request message is reported in an outgoing BSC handover _ the BSC receives an assignment complete message within the scheduled time, the T3107 timer stops. If the timer expires, the _ BSC sends an assignment failure message. after sending a handover request acknowledgment message in 2G/3G handover or inter-BSC handover. If the timer expires, _a Clear REQ message is reported. for a handover success message after a handover command is sent in an outgoing BSC handover. If the timer expires, the outgoing _ BSC handover fails of waiting for a ReleaseIndication message after a ChannelRelease message is sent. If the timer expires, the channel is deactivated _ pose is to reserve some time for the disconnection that may be repeated. After receiving a REL IND message sent by the BTS, _ the BSC starts the timer. When the timer exp Call reestablishment timer _ he Wait Indication information element when the BSC sends an immediate assignment reject message to an MS. _ _ f waiting for a ReleaseIndication message after a ChannelRelease message is sent. If the timer expires, the channel is deactivated. _ nnel is available for assignment, the BSC starts the queuing procedure and the timer. If the channel request is successful before _ the timer expires, the timer stops. If the ti the timer that is started to wait for a channel requested by an incoming BSC handover request message. _ he TCHs reserved for the emergency call are assigned to the user during the service assignment. _ plink data transmission on the original channel if the TC resources are changed before and after the handover 40 Penalty Time on Fast Moving HO 5 Inter UL/OL Subcells HO Penalty Time 10 Penalty Time after BQ HO 30 Penalty Time after TA HO 10 Penalty Time after AMR TCHF-H HO Fail 10 Penalty Time on Load HO 10 Penalty Time after AMR TCHF-H HO Fail 15 Penalty Time on Interfere HO 10 Penalty Time of UtoO HO 40 Penalty Time after UtoO HO Fail 10 Penalty Time after OtoU HO Fail None Cell Reselect Penalty Time 10sec GPRS Penalty Time YES Auto Adjust UL TH and Hysteresis [F] 15 AMR UL Coding Rate adj.th1[F] 19 AMR UL Coding Rate adj.th2[F] 28 AMR UL Coding Rate adj.th3[F] 2 AMR UL Coding Rate adj.hyst1[F] 3 AMR UL Coding Rate adj.hyst2[F] 3 AMR UL Coding Rate adj.hyst3[F] 12 AMR DL Coding Rate adj.th1[F] 17 AMR DL Coding Rate adj.th2[F] 25 AMR DL Coding Rate adj.th3[F] 2 AMR DL Coding Rate adj.hyst1[F] 3 AMR DL Coding Rate adj.hyst2[F] 3 AMR DL Coding Rate adj.hyst3[F] YES Auto Adjust UL TH and Hysteresis [H] 23 AMR UL Coding Rate adj.th1[H] 31 AMR UL Coding Rate adj.th2[H] 63 AMR UL Coding Rate adj.th3[H] 3 AMR UL Coding Rate adj.hyst1[H] 4 AMR UL Coding Rate adj.hyst2[H] 15 AMR UL Coding Rate adj.hyst3[H] 23 AMR DL Coding Rate adj.th1[H] 31 AMR DL Coding Rate adj.th2[H] 63
AMR DL Coding Rate adj.th3[H] 3 AMR DL Coding Rate adj.hyst1[H] 4 AMR DL Coding Rate adj.hyst2[H] 15 AMR DL Coding Rate adj.hyst3[H] ALG1 AMR Rate Control Switch _ cating a set of half rate coding rates currently available for calls. The AMR is a set of multiple speech coding and decoding rates. 1 R calls. The four values 0, 1, 2, and 3 of this parameter respectively represent the _95KBIT/S-0&10_2KBIT/S-0&12_2KBIT/S-1 lowest, low, high, and highest coding rates in the ACS. ble for calls. The AMR is a set of multiple speech coding and decoding rates.If an IP based user plane A-Interface is chosen,5.15KBIT/S 0 will not be included(see 3GPP TS 28 MR calls. The four values 0, 1, 2, and 3 of this parameter respectively represent the lowest, low, high, and highest coding rates NO in the ACS. voice quality. If the estimated result does not conform to the target voice quality, it indicates that the current AMR handover 60 threshold may not be the best for the curren oice quality threshold associated with the automatic adjustment of the AMR handover uplink threshold 2 c adjustment of the AMR handover uplink threshold;The value of this parameter must be smaller than or equal to the value8of Uplink Long-term FER Target. voice quality value associated with the automatic adjustment of the uplink threshold of AMR handover 2 eshold adjustment. It indicates the linear relation between the threshold adjustment value and the logarithmic FER. NO he specified target voice quality. If the estimated result does not conform to the target voice quality, it indicates that the current 60 AMR handover threshold may not be the ce quality threshold associated with the automatic adjustment of the AMR handover downlink threshold. 2 The recommended value is 8 when DTX is disabled. justment of the AMR downlink handover threshold. The value of this parameter The recommended must be smaller value than is 14 or when equal DTX toisthe enabled. value of Downlink Long-term FER Target. t value of the voice quality automatically adjusted through the downlink threshold of AMR handover 2 reshold adjustment. It indicates the linear relation between the threshold adjustment 60KBIT/S-1&8_85KBIT/S-1&12_65KBIT/S-1 value and the logarithmic FER. cates a set of wide-band coding rates currently available for calls. The AMR is a set of multiple speech coding and decoding21rates. of RQI. The RQI indicates the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CIR is 0.5 dB; if RQI equals 2,25the CIR is 1 dB; and so forth. Since there are m of RQI. The RQI indicates the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CIR is 0.5 dB; if RQI equals 2,2the CIR is 1 dB; and so forth. Since there are m of RQI. The RQI indicates the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CIR is 0.5 dB; if RQI equals 2,2the CIR is 1 dB; and so forth. Since there are m of RQI. The RQI indicates the carrier-to-interference ratio (CIR) of the call. If RQI equals 1, the CIR is 0.5 dB; if RQI equals 2,12the CIR is 1 dB; and so forth. Since there are m f coding rate is the threshold of the RQI, which is the carrier-to-interference ratio of a call. The RQI value 1 means 0.5 dB, the 18 RQI value 2 means 1 dB, and others can be d f coding rate is the threshold of the RQI, which is the carrier-to-interference ratio of a call. The RQI value 1 means 0.5 dB, the 2 RQI value 2 means 1 dB, and others can be d ld of coding rate is the threshold of the RQI, which is the carrier-to-interference ratio of a call. The RQI value 1 means 0.5 dB, 2 the RQI value 2 means 1 dB, and others can b ld of coding rate is the threshold of the RQI, which is the carrier-to-interference ratio of a call. The RQI value 1 means 0.5 dB, 2 the RQI value 2 means 1 dB, and others can b d AMR calls. The three values 0, 1 and 2 of this parameter respectively represent the lowest, low and highest codingDISABLE rates in the ACS. ng the call establishment procedure. RATSCCH is used to dynamically reconfigure the rate set of AMR while on a call.UNFIXED This parameter maps the versions of base stations. Uplink Fixed CS Type CS1 Uplink Default CS Type 5 Uplink TBF Threshold from CS1 to CS2 2 Uplink TBF Threshold from CS2 to CS3 2 Uplink TBF Threshold from CS3 to CS4 10 Uplink TBF Threshold from CS2 to CS1 5 Uplink TBF Threshold from CS3 to CS2 5 Uplink TBF Threshold from CS4 to CS3 UNFIXED Downlink Fixed CS Type CS2 Downlink Default CS Type 5 Downlink TBF Threshold from CS1 to CS2 2 Downlink TBF Threshold from CS2 to CS3 2 Downlink TBF Threshold from CS3 to CS4 10 Downlink TBF Threshold from CS2 to CS1 5 Downlink TBF Threshold from CS3 to CS2 5 Downlink TBF Threshold from CS4 to CS3 UNFIXED Uplink Fixed MCS Type MCS2 Uplink Default MCS Type UNFIXED Downlink Fixed MCS Type MCS6 Downlink Default MCS Type UNFIXED Uplink EGPRS2-A Fixed MCS Type MCS6 Uplink EGPRS2-A Default MCS Type UNFIXED Downlink EGPRS2-A Fixed MCS Type DAS6 Downlink EGPRS2-A Default MCS Type 2 Support EGPRS Uplink MCS Dynamic Adjust 15 CCCH Load Indication Period 80
CCCH Load Threshold 1 CCCH Blocks Reserved for AGCH 2_M_PERIOD Multi-Frames in a Cycle on thefor Paging 10 ication messages. The TRX reports the interference level each CH of the channels that have been idle for the whole measurement period. yrload a BTS to inform the BSC of the interference levels on idle channels of a TRX. For details, see GSM Rec. 08.58 and 08.08. messages to the BSC. This parameter is used to control the reporting frequency of overload messages by the channel15 and TRX. 5000 n be the TRX processor downlink CCCH in overload, or AGCH overload. For details, see GSM Rec. 08.58. Numberoverload, of RACH burst timeslots a RACH load measurement. YES indicates the interval during which the BSC determines whether an RACH timeslot is busy. For details, see GSM Rec. 08.58. Whether to permit Abis flow control. the system lightens its load by rejecting some services or prolonging the time for service requests. The Abis flow control is YES used to lighten the system load caused by Abis he cell reselection parameters in system message 3, this parameter is used to control the transmit power of MSs. For details, see GSM Rec. 05.05. receive level value is the measured receive level value minus the receive level value obtained from the BCCH TRX timeslots. 5 This parameter is a celltransmit option in system mess 21, 19, 17, 15, 13, 11, 9, 7, and 5.Generally, the maximum transmit power supported by an MS is level 5 (corresponding to 33 dBm). The minimum power support 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 36, 34, and 32. Generally, the maximum transmit power supported by an MS is level110 0 (corresponding to 30 dBm). The minimum tran Interference Band Threshold 0
105
Interference Band Threshold 1 Interference Band Threshold 2 Interference Band Threshold 3 Interference Band Threshold 4 Interference Band Threshold 5 Interference Calculation Period Edge HO AdjCell Watch Time Edge HO AdjCell Valid Time Layer HO Watch Time Layer HO Valid Time PBGT Watch Time PBGT Valid Time Better Cell HO Watch Time Better Cell HO Valid Time Quick Handover Static Time Quick Handover Last Time HCS HO Watch Time HCS HO Valid Time BQ HO Watch Time BQ HO Valid Time TA HO Watch Time
98 92 87 85 20 6 4 6 4 6 4 6 4 4 3 3 2 1 1 1 _
ifies the number of timeslots between two transmissions when an MS sends multiple consecutive channel requests
Minimum access level of the random access channel (RACH) in the CS domain RACH Busy Threshold number of Channel Request messages that can be sent by an MS in an immediate assignment procedure Minimum Receiving level for Access Cell Access Bar Switch Minum Access RXLEV Cell Reselect Parameters Indication Cell Reselect Offset Cell Reselect Temporary Offset Cell Reselect Hysteresis Parameters Cell Reselect Penalty Time ss to decide the priority status of a cell. This parameter does not affect cell reselection but cell selection only Whether to optimize the call drops resulting from error indication ( Whether to optimize the call drops resulting from error indication ( Whether to optimize the call drops resulting from error indication ( Whether to optimize the call drops resulting from connection failure Whether to optimize the call drops resulting from connection failure Whether to optimize the call drops resulting from connection failur Whether to optimize the call drops resulting from connection failure Whether to optimize the call drops resulting from a connection failu Whether to optimize the call drops resulting from release indication Whether to optimize the call drops resulting from Abis territorial li
-109 16 4_Times 2 Permit 8 YES 0 _ 6dB None NO 1 1 1 1 1 1 1 1 1 1 1
Whether to optimize the call drops resulting from equipment fault. T Whether to optimize the call drops resulting from forced handover fa Whether to optimize the call drops resulting from no MS measurement Whether to optimize the call drops resulting from resource check. Th Whether to optimize the call drops resulting from incoming-BSC hand Whether to optimize the call drops resulting from outgoing-BSC hand Whether to optimize the call drops resulting from outgoing internal Whether to optimize the call drops resulting from intra-cell handove
1 1 1 1 1 1 1 YES
use DL DTX for full-rate (FR) calls. This parameter and "DL DTX Strategy" codetermine &A5/3-0&A5/4-0&A5/5-0&A5/6-0&A5/7-0 whether to use DL DTX for FR calls in the cell. Encryption algorithm supported by the BSS side Shall_Use 08. Uplink DTX is not restricted by the MSC. If this parameter is set to May_Use, ed.the Generally, MS can use the DTX. recommended If this parameter value isisYES. set to Shall_Use or Shall_Not_Use, the MS canno pots due to high buildings may lead to a radio link failure. If a call drop is caused by such a failure, the MS can start call re-establishment NO to resume the conversation. ign a TCH immediately whenThe there is no available SDCCH for a channel request. If this parameter is set to NO, the BSC can YES assign only an SDCCH when processing a chann default value for the BTS30, BTS312, BTS3012A, or BTS3006A is YES, which can be modified. allow SDCCH dynamic allocation, that is, whether The todefault allow dynamic value forconversion other types between of BTS isTCHs NONE, andwhich SDCCHs. cannot be modified. Whether to support the reporting of the main diversity level YES ameter specifies whether to allow the BSC6900 to enable the TRX Intelligent Shutdown feature on a cell. YES a feature. When this parameter is set to YES, the BSC6900 supports the feature where the power amplifier can use different20working voltages in different TRX modulation m rees, however, vary with environments. For a fixed delay, different UEs may obtain different gains. In addition, a fixed delay4may have negative impacts on some codes of t n different gains. In addition, the EDGE service coding may be adversely affected. Therefore, the time delay of transmit diversity NO must be configurable and can be separate meslots. If this parameter is set to YES, the power consumption of base stations is reduced. This parameter maps the versions 0 of base stations. If the parameter is set to NU ation level ranges from 0 to 50, with the step of 0.2 dB. When the EDGE TRX sends signals in 16QAM, the transmit power must 0 be lower than the mean power in GMSK. ation level ranges from 0 to 50, with the step of 0.2 dB. When the EDGE TRX sends signals in 32QAM, the transmitCOMMON power must be lower than the mean power in GMSK. cell scenario. It needs to be sent to the BTS. Based on the information, the BTS optimizes the allocation of resources. 0 eshold of the load on the TCH in the current cell is smaller than the Fast Call Setup TCH Usage Threshold and the request message NO is not issued during location update or p signment messages are sent at the same time to accelerate the signaling processing, thus increasing the response speed DISABLE of the network. to enable the Tandem Free Operation (TFO) function. If the voice quality of an ongoing MS-to-MS call is bad, the TFO DISABLE function can be enabled to improve end-to-end voic o measure the delay on the link between the BTSs that serve the calling MS and the called MS respectively 32 This parameter is used by the BTS to inform the BSC of radio link connection failure. the value of this parameter. Each time the BTS fails to decode the SACCH measurement report sent by the MS, the counter decreases by 1. If the BTS successfully decodes SACCH multi-frames and the radio link failure counter in the system message specify the radio link failure time on the uplink 4 and that on the downlink respectively. The ju figured in the MSC determine the number of paging retransmissions. The total number of paging times is approximately DISABLE equal to the value of this parameter multiplied by old" in "SET GCELLOTHEXT" during the assignment, the BSC continues with the direct retry procedure. When this parameter 48 is set to DISABLE, the current call applies for c H multiframes during an AMR full rate call. See the description of "SACCH Multi-Frames" in "SET GCELLCCBASIC". 32 H multiframes during an AMR half rate call. See the description of "SACCH Multi-Frames" in "SET GCELLCCBASIC". 64_Times o link failures during an AMR full rate call. See the description of "Radio Link Timeout" in "SET GCELLCCBASIC". 52_Times o link failures during an AMR half rate call. See the description of "Radio Link Timeout" L7_FORBID-0&L8_FORBID-0&L9_FORBID-0 in "SET GCELLCCBASIC". n access control, used for load control, allowing or forbidding the access of some _FORBID-0&L14_FORBID-0&L15_FORBID-0 users of common access levels her the users of special access class are allowed to access the network. Value 1 indicates that access is not allowed. Value NO 0 indicates that access is allowed. is NO, callsa are enabled. For theisMSs of access levels 15, emergency callsand are the disabled 52_Times relevant accessvalue. control bit is set to 0 and this p oeter decode theemergency SACCH. Once dedicated channel assigned to the MS, 11 thetocounter S is enabled initialonly valuewhen is setthe to this parameter r S is equal to 0, the downlink radio link is considered as failed. Therefore, when recommended the voice or that data this quality parameter is degraded be set to an Yes.unacceptable situation and it cannot be improv nformation mainly contains the CM3 (classmark 3) information. The CM3 (classmark or3) 2.information For details, see contains the GSM the frequency Rec. 05. 08.band support capability of the MS (used for the easurement information of neighboring cells in multiple frequency bands. This parameter is carried in the system information YES 2ter and 5ter. Whether to A allow reassignment functionfor local use only. Priorities 0 to 4 can be subscribedNO 2, 3, and 4. The two highest priorities and the B are internally reserved by MSs for global use. of the MSC, HLR, and mobile terminal (containing a SIM card), the eMLPP function can be perfectly implemented. NO he BTS enables the repeated transmission of FACCH frames if the measured downlink quality is higher than "Repeated Downlink 5 FACCH Threshold". nction and the measured downlink quality is lower than the downlink quality threshold, the BTS enables the repeated transmission NO of FACCH frames. CH, the BTS enables the repeated transmission of SACCH frames if the measured downlink quality is higher than the downlink IR quality threshold.
ent by the MS. The cell with the good transmission quality on the air interface is set to the LA mode. Increment redundancy5(IR) mode requires the network side retransm Average period for sending the measurement report over the EGPRS channel UNFIXED ing scheme, this parameter is set to a value ranging from MCS1 to MCS9. If the uplink uses the dynamic adjustment coding MCS2scheme, this parameter is set to UNFIXED. coding scheme, this parameter can be used to set the coding scheme for transmission during initial access. If the uplink UNFIXED uses the fixed coding scheme, the TBF uses the fixe ding scheme, this parameter is set to a value ranging from MCS1 to MCS9. If the downlink uses the dynamic adjustment MCS6 coding scheme, this parameter is set to UNFIXED. t coding scheme, this parameter can be used to set the coding scheme for transmission during initial access. If the downlink UNFIXEDuses the fixed coding scheme, the TBF uses th s the fixed coding scheme, this parameter can be set to any one in MCS1-6 and UAS7-11. If the uplink uses the dynamicMCS6 coding scheme, this parameter can be set to UNFIX ing scheme, this parameter specifies the coding scheme that is used for the transmission in initial access. If the uplink UNFIXED uses the fixed coding scheme, the TBF uses the fixed nk uses the fixed coding scheme, this parameter can be set MSC1-4, MSC7-8 or DAS5-12.. If the downlink uses the dynamic DAS6coding scheme, this parameter is set to UNFIX oding scheme, this parameter specifies the coding scheme that is used for the transmission in initial access. If the downlink 2uses the fixed coding scheme, the TBF uses the
tes that the uplink coding scheme is adjusted according to downlink quality measurements reported by MS; cates that thetouplink coding scheme is adjusted to uplink qualityservice measurements reported by BTS. None allows an MS use the circuit switching service according and the packet switching at the same time. This function must be supported by the network side. LL" command or "MOD GCELL" command is set to Double Timeslot Extension Cell for a cell, the parameter cannot be set None to "SUPPORT". n. Comparing to the DTM, the enhanced DTM improves the CS setup and release. During the CS service setup, the PS service None is not interrupted. Whether the cell supports the MS with the DTM multi-timeslot capability of class 11 None Whether the cell supports the MS with the DTM multi-timeslot capability None Whether the cell supports DLDC None y. This parameter is used to reduce the latency during the transmission, thus improving the user experience for conversational None services. AT Inter-Cell PS Handover. The MS in the BSC local cell can be handed over to the UMTS cell through PS handover algorithm. None RAT Inter-cell PS Handover. The MS in the UMTS cell can be handed over to the BSC local cell through PS handover algorithm. 50
ndover can be triggered only when the uplink signal level of the serving cell is less than this parameter. 50 andover can be triggered only when the downlink level of the serving cell is less than this parameter. 35 dover can be initiated only if the rate of an MS is higher than this parameter during a certain period of time. 4 ent values in certain measurement reports are filtered to represent the radio operating environment. The parameter specifies 4 the number of measurement reports used f med on the measured values in several consecutive measurement reports. This parameter indicates the number of measurement 1 reports used for the filtering of neighbor surement reports. When the number of received measurement reports is no larger than this parameter, the BSC does not 10 perform filtering or make quick handover judgm rformed within the "Quick handover punish time": the receive level of the original serving cell is decreased by "Quick handover 63 punish value", to prevent ping-pong hand nal of the original serving cell is decreased by "Quick handover punish value" in "Quick handover punish time" after fast handover 68 succeeds. when the path loss difference between the serving cell and a neighbor cell on the chain is equal to or greater than this parameter. NO meter is set YES, the BSC can forecast the handover of the call in fast handover so that the best target cell can be 3 selected for handover. Thistoparameter indicates N in the P/N rule for direction MS handover direction forecast. r to ClassThis B chain neighboring cell for successively P times, and then the BSC determines that the MS is moving to the Class 3B chain neighboring cell. parameter indicates P in the P/N rule for MS handover direction forecast. r to Class B chain neighboring cell for successively P times, and then the BSC determines that the MS is moving to the Class B chain neighboring cell.
m" in "SET GCELLHOBASIC" is set to HOALGORITHM2, the recommended value of this parameter is 8. m" in "SET GCELLHOBASIC" is set to HOALGORITHM2, the recommended value of this parameter is 5. " in "SET GCELLHOBASIC" is set to HOALGORITHM2, the recommended value of this parameter is 2.
he high-speed circumstances, the recommended value is NO.
e, full-rate channels are assigned.
