Set Basic Parameters of Cell

Set Basic Parameters of Cell(SET GCELLBASICPARA)FunctionUse this command to modify the basic Parameters of the GSM internal cell.Note1. 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.ParameterParameter IDParameter NameParameter Description

IDTYPEIndex TypeMeaning: Type of an index

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

Actual Value Range: BYNAME, BYID

Unit: None

Default Value: None

Recommended Value: None

CELLIDCell IndexMeaning: 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


CELLNAMECell NameMeaning: Name of a cell, uniquely identifying a cell in a BSC

GUI Value Range: None

Actual Value Range: 1~64 characters

Unit: None

Default Value: None


LAYERLayer of The CellMeaning: 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

PRIORCell PriorityMeaning: This parameter controls handover between cells at the same layer. Generally, 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(Priority-11), PRIOR-12(Priority-12), PRIOR-13(Priority-13), PRIOR-14(Priority-14), PRIOR-15(Priority-15), PRIOR-16(Priority-16)

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, PRIOR-14, PRIOR-15, PRIOR-16

Unit: None

Default Value: None


MAXTAMax TAMeaning: This parameter specifies the actual coverage area of a cell. After 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.

FRDLDTXFR Use Downlink DTXMeaning: 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 cells.

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

Actual Value Range: NO, YES

Unit: None

Default Value: None

Recommended Value: YES

HRDLDTXHR Use Downlink DTXMeaning: 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.



Unit: None

Default Value: None


ENCRYEncryption AlgorithmMeaning: 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&A5/1-0&A5/2-0&A5/3-0&A5/4-0&A5/5-0&A5/6-0&A5/7-0

RXMINMinum Access RXLEVMeaning: Minimum received signal level of 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


FRULDTXFR Uplink DTXMeaning: 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), 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

HRULDTXHR Uplink DTXMeaning: 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

Unit: None

Default Value: None

Recommended Value: Shall_Use

CALLRESTABDISCall Reestablishment ForbiddenMeaning: Whether to allow call re-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 re-establishment 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 long time. Therefore, the subscriber may hang up the phone before the call is re-established. Generally, the recommended value is YES.

IMMASSENTCH Immediate AssignmentMeaning: 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

DIRECTRYENDirected RetryMeaning: 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 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


UPPCENUL PC AllowedMeaning: Whether to allow MS power control



Unit: None

Default Value: None


DNPCENDL PC AllowedMeaning: Whether to allow BTS power control



Unit: None

Default Value: None


SDDYNSDCCH Dynamic Allocation AllowedMeaning: Whether to allow SDCCH dynamic allocation, that is, whether to allow dynamic conversion between TCHs and SDCCHs.



Unit: None

Default Value: None


LEVELRPTLevel Report SwitchMeaning: 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


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



Unit: None

Default Value: None


BTSadjustAdjust VoltageMeaning: 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.



Unit: None

Default Value: None


GMSKDELAYDiversity Transmitter GMSK DelayMeaning: 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

Unit: bit

Default Value: None


DIVERT8PSKDELAYDiversity Transmitter 8PSK DelayMeaning: 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 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


ICBALLOWICB AllowedMeaning: 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


TIMESLOTVOLADJALLOWVoltage Adjust Based Timeslots AllowedMeaning: 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


DIVERT16QAMDELAYDiversity Transmitter 16QAM DelayMeaning: 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 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


DIVERT32QAMDELAYDiversity Transmitter 32QAM DelayMeaning: 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. 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


POWERREDUCE16QAM16QAM Transmitter Power Reduce LevelMeaning: 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.


Actual Value Range: 0~10, step: 0.2

Unit: dB

Default Value: None


POWERREDUCE32QAM32QAM Transmitter Power Reduce LevelMeaning: 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


CELLSCENARIOCell ScenarioMeaning: 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

CELL8PSKPOWERLEVELCell 8PSK Power Attenuation GradeMeaning: 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 than the mean power in GMSK.



Unit: None

Default Value: None


FASTCALLTCHTHRESHOLDFast Call Setup TCH Usage ThresholdMeaning: 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.



Unit: per cent

Default Value: None


IMMASSCBBImmediate Assignment OptimizedMeaning: 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


NBAMRTFOSWITCHTFO SwitchMeaning: Whether to enable the Tandem Free Operation (TFO) function on the BTS 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

RTPSWITCHMeasure Link Delay SwitchMeaning: 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)

Actual Value Range: DISABLE, ENABLE

Unit: None

Default Value: None

Recommended Value: DISABLE

ExampleTo 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

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