Revision HistoryDateRevisionRemarkChangesParamterOld ValueNew Value12/18/081.0Initial revision1/10/081.1Enable AMR HR 7.4kAMR Starting Mode(H)20AMR DL Coding Rate adj.hyst2(H)44AMR DL Coding Rate adj.hyst1(H)23AMR DL Coding Rate adj.th2(H)1831AMR DL Coding Rate adj.th1(H)1223AMR UL Coding Rate adj.hyst2(H)42AMR UL Coding Rate adj.hyst1(H)22AMR UL Coding Rate adj.th2(H)1833AMR UL Coding Rate adj.th1(H)1229AMR ACS(H)1300110121010101BQ HO tuningMin Interval for TCH Hos3s2sFilter Length for TCH Level.64Filter Length for TCH Quality24No Dl.MR HO AllowedNoYesRscPenaltyTimer75UmPenaltyTimer410DLQuaLimitAMRFR5060DLQuaLimitAMRFH5060ULQuaLimitAMRFR5060ULQuaLimitAMRFH5060No Dl Mr.HO AllowedYesNo
GP Parameters settingParameter NameObject NameHW setting rangeHW default valueEricssonBSC Cureent Setting(3900 BTS VersionParameter DescriptionNetWork Optimization Index of Original CellBasic Parameters0~2048cell specificcell specificThis parameter indicates the index number of a cell.Name of Original CellBasic ParametersA string of 32 characterscell specificcell specificA string of 1 to 32 characters A string of 32 charactersAllow Dynamic Voltage AdjustmentBasic ParametersYes,NoNoYesNoWhether the BSC is based on different modulating modes to select different working voltage.Allow Dynamic Shutdown of TRX Power AmplifierBasic ParametersYes,NoNoYesYesWhether the BSC allows the dynamic shutdown of TRX power amplifierMAX TA(bit period(1 bit=0.55km))Basic Parameters063626363This parameter determines the actual coverage area of a cell. When the BTS receives a CHANNEL REQUEST message or a HANDOVER ACCESS message, it compares the TA with the value of this parameter to determine whether channel assignment or handover is performed in this cell.DL DTXBasic ParametersYes,NoNoYesYesThis parameter indicates whether downlink DTX is used in a cell.Encryption AlgorithmBasic ParametersA5/0A5/1A5/7A5/0A5/2A5/0A5/2This parameter, which consists of eight bits (from the most significant bit to the least significant bit), indicates whether the A5/0, A5/1, A5/2...A5/7 encryption algorithm is supported respectively. 1: It indicates that the BSS supports the encryption algorithm. 0: It indicates that the BSS does not support the encryption algorithmDL PC AllowedBasic ParametersYes,NoYesYesYesThis parameter indicates whether the adjustment of BTS power is allowed.UL PC AllowedBasic ParametersYesNoYesYesYesThis parameter indicates whether the adjustment of MS power is allowed.Direct RetryBasic ParametersYes,NoYesYesYesThis parameter indicates the whether the directed retry on the TCH is allowed. If this parameter is set to Yes, the handover procedure is used and the MS is handed over to the neighboring cell. Direct retry is an emergency measure for abnormal peak traffic in the local wireless network. It is not a primary method of clearing traffic congestion. If direct retry is preformed frequently in a local network, you must adjust the sector carrier configuration of the BTS and the network layout.TCH Immediate AssignmentBasic ParametersYes,NoNoNoNoYes: It indicates that the TCH is immediately assigned when the SDCCH has no available resource during the processing of access request. No: It indicates that only the SDCCH can be assigned.RXLEV_ACCESS_MINBasic Parameters0-63800It is min Rx-Level for Decoding of RACHCall Reestablishment ForbiddenBasic ParametersYes,NoYesYesYesIf you make a cal & after Successfully SDCCH Sezure,TCH Assignment is failed then this will decide whethere to Retry for TCH assignment,on same SDCCH,or Not.Commonely User does not wait for so much long time & manualy cancells the call,so that`s why we don`t use this parameterUL DTXBasic ParametersMay use, Shall use, Shall not useShall useShall UseShall UseUsed for Reducing Network Interference & Increasing Stand-By time of MS.PT(s)Idle Mode0-30 (20s to 620s) 31 (reserved for changing the effect of CRO on C2)000Cell Reselection Penalty Time to ensure the avoid Ping-Pong Cell ReselectionTOIdle Mode0-7000Cell Reselect Temporary Offset (TO) indicates the temporary correction of C2.This parameter functions only before the penalty time of cell reselection expiresACSIdle ModeYes,NoNoNoNoAdditional Cell Reselectiom Param Indication:If ACS=0,Invalid in SySTEM INFO=3,but works in SYSTEM INFO=4 to tell SYTEM INFO 4.IF ACS=1,tells it means that the MS should obtain PI and other parameters for calculating C2 from other bytes of system information 7 and 8.CRO(2dB)Idle Mode063cell specific00If this parameter is reasonably configured, the number of handovers can be reduced and a better cell can be assigned to.When PT is set to 31, it becomes more difficult for an MS to access a cell when CRO increasesCell_Bar_QualifyIdle Mode010NoNoUsed with Cell-BAR-Access to Priopritize a Cell for Cell Selection/ReselectionPIIdle ModeYes, NoYesYesYesCell Reselection Parameter:Indicates whether to perform C2-Based Cell reselection.When PI=1 MS will calculate C2 from SYSTEM INFO and perform Cell Reselection.If PI=0 then C1=C2,Cell-Reselection will be based on C1CRHIdle Mode0146dB6dB6dBCELL_RESELECT_HYSTERESIS,As MS does not responds to Paging messages during Location Update,too much Cell-Selection will lead to Connection drop.If it too Low,Frequent Cell-Rselection will Occur causing Load on Signaling.Too High value can cause MS t o CAMP o Older cell even when LAC Area is ChangedPeriod of Periodic Location Update(6 minutes)Idle Mode0255205050"Forced Periodic Location Update".T3212 is used for Forced Location Update of Every mobile in Cell-Coverage Area.Unit id 6 minutes. If any mobile failed to respond to Paging message for a long time it will be considered as "Off-Line",and if this mobile cell-Reselection,T3212 will Reset & Network still Can`t find Location of MS,So it will be "OFF-Line" for a Long time.BS-PA-MFRAMSIdle Mode292 Multiframe Period2 Multiframe Period2 Multiframe PeriodPaging MutiFrame period:Defines Period for sending PAGING REQUEST message for to same Paging-Subgroup,the number of paging sub-channels on a specific paging channel..When MFR increases, the number of paging sub-channels increases, thus reducing the number of subscribers served by each paging sub-channel and prolonging the average work time of the MS battery.BS_AG_BLKS_RESIdle Mode0-2 (a combined CCCH), 0-7 (others)1 (combined CCCH) 2 (non-combined CCCH) When the cell is configured with CBCHs, the BS_AG_BLKS_RES parameter must be equal to or greater than 1, that is, the parameter cannot be 0.cell specific1Number of CCCH Blocks used for Access Grant Channel remaining are used for Paging channels.In each downlink non-combined SDCCH 51 frames multi-frame there are 9 different CCCH blocks and in the combined BCCH/SDCCH there are 3 different blocksNCC PermittedIdle ModeSelection of 7 Perm., Selection of 6 Perm., Selection of 5 Perm., Selection of 4 Perm., Selection of 3 Perm., Selection of 2 Perm., Selection of 1 Perm., Selection of 0 Perm.111111111111111111111111Network Colour Code that are Permitted,Sent in System Information type 2&6,This parameter can be used to make MS 's measurements on some adjacent cells optionally.Cells with NCC ranging in NCC permitted range will MS report Measurement ReportsCell_Bar_AccessIdle Mode0100NoThis Indicates whether a Cell Access is Barred or not. Together with CBQ it is used for determinig Priority of Cells.Tx-integer(RACH Timeslot(equals to a TDMA frame,4.615ms))Idle Mode3-12141620253250325050It indicates the number of timeslots in an interval when an MS sends continuously multiple channel requests.Used to Reduce Collision on RACH & to Increase Efficiency of RACH.ATTIdle ModeYes, NoYesYesYesIMSI Attach?detach allowed:Detach,This is the Last message that MS Sends when it is Powered-Off,If set to No then System will have to wait for T3212 for considering MS to be "OFF-Line".IMSI Attach is First message generated by MS to Inform Network its PresenceAMR Starting Mode(H)Call Control03200This parameter indicates the half rate used when a call is initially established.As AMR.ACS (H) includes four coding rates at most, this parameter can only be given four values: 0, 1, 2, and 3. These four values correspond to low-to-high half rates in AMR ACS (H).
The AMR Starting Mode (H) should be within the AMR ACS (H).AMR DL Coding Rate adj.hyst3(H)Call Control015151515This parameter must meet the following conditions:AMR DL Coding Rate adj.th2 (H) < AMR DL Coding Rate adj.th3 (H) [AMR DL Coding Rate adj.th2 (H) + AMR DL Coding Rate adj.hyst2 (H) ] < [AMR DL Coding Rate adj.th3 (H) + AMR DL Coding Rate adj.hyst3 (H)]AMR DL Coding Rate adj.hyst2(H)Call Control015444This parameter must meet the following conditions:AMR DL Coding Rate adj.th2 (H) < AMR DL Coding Rate adj.th3 (H) [AMR DL Coding Rate adj.th2 (H) + AMR DL Coding Rate adj.hyst2 (H) ] < [AMR DL Coding Rate adj.th3 (H) + AMR DL Coding Rate adj.hyst3 (H)]AMR DL Coding Rate adj.hyst1(H)Call Control015433This parameter must meet the following conditions:AMR DL Coding Rate adj.th1 (H) < AMR DL Coding Rate adj.th2 (H) [AMR DL Coding Rate adj.th1 (H) + AMR DL Coding Rate adj.hyst1 (H) ] < [AMR DL Coding Rate adj.th2 (H) + AMR DL Coding Rate adj.hyst2 (H)]AMR DL Coding Rate adj.th3(H)Call Control063636363This parameter must meet the following conditions:AMR DL Coding Rate adj.th2 (H) < AMR DL Coding Rate adj.th3 (H) [AMR DL Coding Rate adj.th2 (H) + AMR DL Coding Rate adj.hyst2 (H) ] < [AMR DL Coding Rate adj.th3 (H) + AMR DL Coding Rate adj.hyst3 (H)]AMR DL Coding Rate adj.th2(H)Call Control063263131This parameter must meet the following conditions:AMR DL Coding Rate adj.th2 (H) < AMR DL Coding Rate adj.th3 (H) [AMR DL Coding Rate adj.th2 (H) + AMR DL Coding Rate adj.hyst2 (H) ] < [AMR DL Coding Rate adj.th3 (H) + AMR DL Coding Rate adj.hyst3 (H)]AMR DL Coding Rate adj.th1(H)Call Control063162323This parameter must meet the following conditions:AMR DL Coding Rate adj.th1 (H) < AMR DL Coding Rate