Set Basic Parameters of Cell.docx

Set Basic Parameters of Cell(SET GCELLBASICPARA) Function Use this command to modify the basic Parameters of the GSM internal cell. Note 1. The cell can support GPRS only when it is configured with the PCU. 2. If the cell supports the adjacent cell of EDGE, NC2, NACC, PACKET SI or PCU64, it must support GPRS. 3. If the cell is modified to not support GPRS, it will not support EDGE, NC2, NACC, PACKET SI or PCU64 adjacent cell. Parameter Parameter ID

Parameter Name

IDTYPE

Index Type

Parameter Description

Meaning: Type of an index

GUI Value Range: BYNAME(By Name), BYID(By Index)

Actual Value Range: BYNAME, BYID

Unit: None

Default Value: None

Parameter ID

Parameter Name


Recommended Value: None CELLID

Cell Index Meaning: Index of a cell, uniquely identifying a cell in a BSC

GUI Value Range: 0~2047

Actual Value Range: 0~2047

Unit: None

Default Value: None

Recommended Value: None CELLNAME

Cell Name Meaning: Name of a cell, uniquely identifying a cell in a BSC

GUI Value Range: None

Actual Value Range: 1~64 characters

Parameter ID

Parameter Name


Unit: None

Default Value: None

Recommended Value: None LAYER

Layer of The Cell

Meaning: Layer where a cell is located. The network designed by Huawei has four layers: Umbrella (layer 4), Macro (layer 3), Micro (layer 2), and Pico(layer 1). Each layer can be set with 16 priorities.

GUI Value Range: 1, 2, 3, 4

Actual Value Range: 1, 2, 3, 4

Unit: None

Default Value: None

Recommended Value: 3 PRIOR

Cell Priority Meaning: This parameter controls handover between cells at the same layer. Generally,

Parameter ID

Parameter Name


the cells at the same layer are set with the same priority. If the cells at the same layer have different priorities, a cell with a smaller priority value has a higher priority.

GUI Value Range: PRIOR-1(Priority-1), PRIOR-2(Priority-2), PRIOR-3(Priority-3), PRIOR-4(Priority-4), PRIOR-5(Priority-5), PRIOR-6(Priority-6), PRIOR-7(Priority-7), PRIOR-8(Priority-8), PRIOR-9(Priority-9), PRIOR-10(Priority-10), PRIOR-11(Priority11), PRIOR-12(Priority-12), PRIOR13(Priority-13), PRIOR-14(Priority-14), PRIOR-15(Priority-15), PRIOR-16(Priority16)

Actual Value Range: PRIOR-1, PRIOR-2, PRIOR-3, PRIOR-4, PRIOR-5, PRIOR-6, PRIOR-7, PRIOR-8, PRIOR-9, PRIOR-10, PRIOR-11, PRIOR-12, PRIOR-13, PRIOR14, PRIOR-15, PRIOR-16

Unit: None

Default Value: None

Recommended Value: None MAXTA

Max TA Meaning: This parameter specifies the actual coverage area of a cell. After

Parameter ID

Parameter Name


receiving the channel request message or handover access message, the BTS determines whether the channel assignment or handover is performed in the cell by comparing the TA and the value of this parameter. The value of this parameter is determined by that of Cell Extension Type in the ADD GCELL command.



Unit: None

Default Value: None

Recommended Value: In Normal cell,the recommended value is 62;in Double Timeslot Extension Cell,the recommended value is 219. FRDLDTX

FR Use Downlink DTX Meaning: Whether the downlink discontinuous transmission (DTX) function is enabled for full rate (FR) calls. This function is also restricted by the DTX switch in the MSC. If the MSC allows the downlink DTX for calls and the value of this parameter(FRDLDTX) is YES, the downlink DTX is enabled for FR calls of

Parameter ID

Parameter Name


cells.

GUI Value Range: NO(No), YES(Yes)

Actual Value Range: NO, YES

Unit: None

Default Value: None

Recommended Value: YES HRDLDTX

HR Use Downlink DTX Meaning: Whether the downlink DTX function is enabled for half rate (HR) calls. This function is also restricted by the DTX switch in the MSC. If the MSC allows the downlink DTX for calls and the value of this parameter(HRDLDTX) is YES, the downlink DTX is enabled for HR calls of cells.



Parameter ID

Parameter Name


Unit: None

Default Value: None

Recommended Value: YES ENCRY

Encryption Algorithm

Meaning: Encryption algorithm supported by the BSS side

GUI Value Range: A5/0, A5/1, A5/2, A5/3, A5/4, A5/5, A5/6, A5/7

Actual Value Range: A5/0, A5/1, A5/2, A5/3, A5/4, A5/5, A5/6, A5/7

Unit: None

Default Value: None

Recommended Value: A5/0-1&A5/10&A5/2-0&A5/3-0&A5/4-0&A5/50&A5/6-0&A5/7-0 RXMIN

Minum Access RXLEV

Meaning: Minimum received signal level of

Parameter ID

Parameter Name


the MS. This level is reported in the system information. This parameter specifies the minimum receive level of an MS to access the BSS. For details. see GSM Rec. 05.08. The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).



Unit: dB

Default Value: None

Recommended Value: 8 FRULDTX

FR Uplink DTX

Meaning: Whether the uplink DTX function is enabled for FR calls. For details, see GSM Rec. 05.08. Uplink DTX is not restricted by the MSC. If this parameter is set to May_Use, the MS can use DTX. If this parameter is set to Shall_Use or Shall_Not_Use, the MS cannot use DTX.

GUI Value Range: May_Use(May Use), Shall_Use(Shall Use),

Parameter ID

Parameter Name


Shall_NOT_Use(Shall not Use)

Actual Value Range: May_Use, Shall_Use, Shall_NOT_Use

Unit: None

Default Value: None

Recommended Value: Shall_Use HRULDTX

HR Uplink DTX

Meaning: Whether the uplink DTX function is enabled for HR calls. For details, see GSM Rec. 05.08. Uplink DTX is not restricted by the MSC. If this parameter is set to May_Use, the MS can use DTX. If this parameter is set to Shall_Use or Shall_Not_Use, the MS cannot use DTX.

GUI Value Range: May_Use(May Use), Shall_Use(Shall Use), Shall_NOT_Use(Shall not Use)

Actual Value Range: May_Use, Shall_Use, Shall_NOT_Use

Parameter ID

Parameter Name


Unit: None

Default Value: None

Recommended Value: Shall_Use CALLRESTABDIS

Call Reestablishmen Meaning: Whether to allow call ret Forbidden establishment. Burst interference or blind spots 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 reestablishment to resume the conversation.



Unit: None

Default Value: None

Recommended Value: If this parameter is set to NO, the average call drop rate decreases. This setting is applicable in suburbs or urban areas with poor coverage. Call reestablishment, however, may take a

Parameter ID

Parameter Name


long time. Therefore, the subscriber may hang up the phone before the call is reestablished. Generally, the recommended value is YES. IMMASSEN

TCH Immediate Assignment

Meaning: Whether to allow immediate TCH assignment. If this parameter is set to YES, the BSC can assign a TCH immediately when there is no available SDCCH for a channel request. If this parameter is set to NO, the BSC can assign only an SDCCH when processing a channel access request.



Unit: None

Default Value: None

Recommended Value: NO DIRECTRYEN

Directed Retry Meaning: Whether to enable a directed retry. The directed retry is to hand over an MS to a neighboring cell in the same procedure as the handover. The directed retry is an emergency measure applicable to

Parameter ID

Parameter Name


abnormal traffic peaks in some areas of a radio network. You should not use the directed retry as a major means of solving traffic congestion. If the directed retry always occurs in some areas of a network, consider adjusting the sector and TRX configuration and the network layout.



Unit: None

Default Value: None

Recommended Value: YES UPPCEN

UL PC Allowed Meaning: Whether to allow MS power control



Parameter ID

Parameter Name


Unit: None

Default Value: None

Recommended Value: YES DNPCEN

DL PC Allowed Meaning: Whether to allow BTS power control



Unit: None

Default Value: None

Recommended Value: YES SDDYN

SDCCH Dynamic Allocation Allowed

Meaning: Whether to allow SDCCH dynamic allocation, that is, whether to allow dynamic conversion between TCHs and SDCCHs.

Parameter ID

Parameter Name




Unit: None

Default Value: None

Recommended Value: YES LEVELRPT

Level Report Switch

Meaning: Whether to support the reporting of the main diversity level

GUI Value Range: NO(Not Support), YES(Support), NONE(Invalid)

Actual Value Range: NO, YES, NONE

Unit: None

Default Value: None

Parameter ID

Parameter Name


Recommended Value: None DYNOpenTrxPower

Allow Dynamic Shutdown of Meaning: This parameter specifies whether TRX to allow the BSC6900 to enable the TRX Intelligent Shutdown feature on a cell.



Unit: None

Default Value: None

Recommended Value: YES BTSadjust

Adjust Voltage Meaning: This parameter specifies whether to enable the TRX Working Voltage Adjustment feature. When this parameter is set to YES, the BSC6900 supports the feature where the power amplifier can use different working voltages in different TRX modulation modes.


Parameter ID

Parameter Name



Unit: None

Default Value: None

Recommended Value: YES GMSKDELAY

Diversity Transmitter GMSK Delay

Meaning: Delay of transmit diversity when GMSK is used. Generally, the parameter is applicable to general fading environments. In this case, the transmit diversity can obtain the gain of 3 dB to 5 dB. The fading degrees, however, vary with environments. For a fixed delay, different UEs may obtain different gains. In addition, a fixed delay may have negative impacts on some codes of the EDGE service. Therefore, the delay of transmit diversity must be configurable and can be set for GMSK and 8PSK respectively.


Actual Value Range: 0.5~4, step: 1/8

Parameter ID

Parameter Name


Unit: bit

Default Value: None

Recommended Value: 20 DIVERT8PSKDELAY

Diversity Transmitter 8PSK Delay

Meaning: Delay of transmit diversity when 8PSK is used. Generally, the parameter is applicable to general fading environments. The transmit diversity can generally bring a gain of 3 dB to 5 dB. The fading conditions vary with the MS location; therefore, MSs in a fixed time delay obtain different gains. In addition, the EDGE service coding may be adversely affected. Therefore, the time delay of transmit diversity must be configurable and can be separately set for GMSK and 8PSK. Only the doubletransceiver BTSs and the distributed BTSs can be configured with this parameter. For the BTSs of other types, this parameter is set to an invalid value 255.



Unit: bit

Parameter ID

Parameter Name


Default Value: None

Recommended Value: 4 ICBALLOW

ICB Allowed Meaning: This parameter is used to enable the Intelligent Combiner Bypass (ICB) function on the BCCH TRX of a cell. This parameter specifies whether to allow the cell to enable the ICB function. When this parameter is set to YES, the TCHs on the non-BCCH TRX are preferentially assigned. In this way, the largest possible number of idle TCHs is reserved on the BCCH TRX, and thus the BCCH TRX enters the ICB mode.

GUI Value Range: NO(NO), YES(YES), NULL(NULL)

Actual Value Range: NO, YES, NULL

Unit: None

Default Value: None

Recommended Value: NO

Parameter ID

Parameter Name

TIMESLOTVOLADJALLOW Voltage Adjust Based Timeslots Allowed


Meaning: This parameter determines whether the dynamic voltage adjustment function is enabled on the basis of the number of timeslots. If this parameter is set to YES, the power consumption of base stations is reduced. This parameter maps the versions of base stations. If the parameter is set to NULL, base stations do not support this function.

GUI Value Range: NO(No), YES(Yes), NULL(Null)

Actual Value Range: NO, YES, NULL

Unit: None

Default Value: None

Recommended Value: NO DIVERT16QAMDELAY

Diversity Transmitter 16QAM Delay

Meaning: Delay of transmit diversity when 16QAM is used. Generally, the parameter is applicable to general fading environments. The transmit diversity can generally bring a gain of 3 dB to 5 dB. The fading conditions vary with the MS location; therefore, MSs in a fixed time delay obtain different gains. In addition, the EDGE service coding may be adversely affected. To avoid the

Parameter ID

Parameter Name


preceding cases, the delay of transmit diversity must be configurable and can be set for GMSK and 16QAM respectively. Only the double-transceiver BTSs and the distributed BTSs can be configured with this parameter. For the BTSs of other types, this parameter is set to an invalid value 255.



Unit: bit

Default Value: None

Recommended Value: 4 DIVERT32QAMDELAY

Diversity Transmitter 32QAM Delay

Meaning: Delay of transmit diversity when 32QAM is used. Generally, the parameter is applicable to general fading environments. The transmit diversity can generally bring a gain of 3 dB to 5 dB. The fading conditions vary with the MS location; therefore, MSs in a fixed time delay obtain different gains. In addition, the EDGE service coding may be adversely affected. To avoid the preceding cases, the delay of transmit diversity must be configurable and can be set for GMSK and 32QAM respectively.

Parameter ID

Parameter Name


Only the double-transceiver BTSs and the distributed BTSs can be configured with this parameter. For the BTSs of other types, this parameter is set to an invalid value 255.



Unit: bit

Default Value: None

Recommended Value: 4 POWERREDUCE16QAM

16QAM Transmitter Power Reduce Level

Meaning: Power attenuation level of timeslot 7 of the BCCH in 16QAM. The attenuation 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 be lower than the mean power in GMSK.


Parameter ID

Parameter Name


Actual Value Range: 0~10, step: 0.2

Unit: dB

Default Value: None

Recommended Value: 0 POWERREDUCE32QAM

32QAM Transmitter Power Reduce Level

Meaning: Power attenuation level of timeslot 7 of the BCCH in 32QAM. The attenuation level ranges from 0 to 50, with the step of 0.2 dB. When the EDGE TRX sends signals in 32QAM, the transmit power must be lower than the mean power in GMSK.


Actual Value Range: 0~10, step: 0.2

Unit: dB

Default Value: None

Parameter ID

Parameter Name


Recommended Value: 0 CELLSCENARIO

Cell Scenario Meaning: Information about the cell scenario. It needs to be sent to the BTS. Based on the information, the BTS optimizes the allocation of resources.

GUI Value Range: COMMON(COMMON), MULTIPATH(MULTIPATH), INDOOR(INDOOR), HIGHWAY(HIGHWAY)

Actual Value Range: COMMON, MULTIPATH, INDOOR, HIGHWAY

Unit: None

Default Value: None

Recommended Value: COMMON CELL8PSKPOWERLEVEL

Cell 8PSK Power Attenuation Grade

Meaning: Timeslot power attenuation level of the EDGE TRX in 8PSK. The attenuation level ranges from 0 to 50, each of which corresponds to an attenuation of 0.2 dB. When the EDGE TRX sends signals in 8PSK, the transmit power must be lower

Parameter ID

Parameter Name


than the mean power in GMSK.



Unit: None

Default Value: None

Recommended Value: 0 FASTCALLTCHTHRESHOL D

Fast Call Setup TCH Usage Threshold

Meaning: After a channel request message is received, the type of the channel needs to be specified. In this case, if the threshold of the load on the TCH in the current cell is smaller than the Fast Call Setup TCH Usage Threshold and the request message is not issued during location update or paging, a TCH is preferentially assigned.



Parameter ID

Parameter Name


Unit: per cent

Default Value: None

Recommended Value: 0 IMMASSCBB

Immediate Assignment Optimized

Meaning: The channel activation and immediate assignment messages are sent at the same time to accelerate the signaling processing, thus increasing the response speed of the network.

GUI Value Range: NO(NO), YES(YES)


Unit: None

Default Value: None

Recommended Value: NO NBAMRTFOSWITCH

TFO Switch Meaning: Whether to enable the Tandem Free Operation (TFO) function on the BTS

Parameter ID

Parameter Name


through a CHANNEL ACTIVATION or MODE MODIFY message. This parameter specifies whether to enable the Tandem Free Operation (TFO) function. If the voice quality of an ongoing MS-to-MS call is bad, the TFO function can be enabled to improve end-to-end voice quality. The TFO function cannot be used to improve the voice quality of an MS-to-PSTN call.

GUI Value Range: DISABLE(Disable), ENABLE(Enable)

Actual Value Range: DISABLE, ENABLE

Unit: None

Default Value: None

Recommended Value: DISABLE RTPSWITCH

Measure Link Delay Switch

Meaning: Whether to measure the delay on the link between the BTSs that serve the calling MS and the called MS respectively

GUI Value Range: DISABLE(Disable), ENABLE(Enable)

Parameter ID

Parameter Name


Actual Value Range: DISABLE, ENABLE

Unit: None

Default Value: None

Recommended Value: DISABLE

Example To set cell basic Parameters of a cell (Cell Index = 44, BFEDGEMTX=YES, LAYER=1), run the following command: SET GCELLBASICPARA: IDTYPE=BYID, CELLID=44, BFEDGEMTX=YES, LAYER=1;

Set Basic Parameters of Cell.docx

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