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路测信令分析Version1.0目录§1信令ID解释3§1.1DT信令中ID解释4§1.2几个主要ID的字段解释4§2正常信令流程7§2.1呼叫建立及主叫释放信令流程7§2.2被叫信令流程16§2.3开机位置更新信令流程18§2.4跨越LAC区位置更新信令流程19§2.5切换信令流程21§2.5.1同步切换信令流程21§2.5.2非同步切换信令流程22§3异常信令流程24§3.1由设备原因引起呼叫建立失败信令流程24§3.2被叫做位置更新造成主叫呼叫建立失败信令流程24§3.3由于拥塞造成的呼叫建立失败信令流程26§3.4由于被叫鉴权被拒绝造成主叫呼叫建立失败信令流程26§3.5无线链路超时造成掉话信令流程28§3.6切换失败信令流程31§1信令ID解释§1.1DT信令中ID解释IDTITTLEMARKAQDLDownlinkAudioQualityMOS值AQIAudioQualityInformationMOS信息CAACallAttempt呼叫尝试CACCallConnectSuccess呼叫成功CADCallDisconnect通话结束CAIIncomingCall呼入CAFCallFailed呼叫失败CHIChannelInfo信道信息CICarrierInterferenceC/I，载干比CRELCellReselection小区重选DSCDownlinkSignalingCounter下行信令计数ERXLEnhancedRXLevel增强型电平FERFrame.ErrorRate误帧率HOAHandoverAttempt切换尝试HOFHandoverFailure切换失败HOPFrequencyHoppingStatus跳频状态HOSHandoverSuccess切换成功L2DLayer2Downlink第二层下行信令L2ULayer2Uplink第二层上行信令L3DLayer3Downlink第三层下行信令L3ULayer3Uplink第三层上行信令LUALocationUpdateAttempt位置更新尝试LUSLocationUpdateAccepted位置更新成功LUFLocationUpdateFailure位置更新失败MSPMSPower手机功率NLISTNeighborList邻区列表PCHIPacketChannelInfoGPRS信道信息RLTRadioLinkTimeout无线链路超时RXLRXLevel电平RXQRXQuality通话质量SEIServiceInformation服务信息TADTimingAdvanceTA值TBFITBFInformation§1.2几个主要ID的解释1AQDL(DownlinkAudioQuality)23.6AudioQualityMean:3.3MOS值第二项2AQI(AudioQualityInformation)3-11SyncStatus:Synchronized第三项1同步0不同步3CAD(CallDisconnect)111416116StatusCCCause1=Normaldisconnect2=Droppedcall.(i.e.,networkrelease)3=Droppedoutofservice.4=Droppedduringhandover/handoff/hardhandover5=Reserved(保留字段),例如:测试设备原因6=Transfertimeoutduringdataorfaxtestcall7=Protocolerrorduringdataorfaxtestcall8=Transferfailedduringdataorfaxtestcall9=Modemconnectionfailure.Dedicatedconnectionalreadyachieved10=Networkbusy(GSM)WhennetworkhasnotsentALERTorCONNECTmessagebeforeitsendsDISCONNECTmessage11=Voicequalitysynchronizationlost1Unassigned(unallocatednumber)3Noroutetodestination6Channelunacceptable8Operatordeterminedbarring16Normalclearing17Userbusy18Nouserresponding19Useralerting,noanswer21Callrejected22Numberchanged26Nonselecteduserclearing27Destinationoutoforder28Invalidnumberformat(incompletenumber)29Facilityrejected30ResponsetoSTATUSENQUIRY31Normal,unspecified34Nocircuit/channelavailable38Networkoutoforder41Temporaryfailure42Switchingequipmentcongestion43Accessinformationdiscarded44Requestedcircuit/Channelnotavailable47Resourcesunavailable,unspecified49Qualityofserviceunavailable50Requestedfacilitynotsubscribed55IncomingcallsbarredwithintheCUG57Bearercapabilitynotauthorized58Bearercapabilitynotpresentlyavailable63Seviceoroptionnotavailable,unspecified65Bearerservicenotimplemented69Requestedfacilitynotimplemented70Onlyrestricteddigitalinformationbearercapabilityisavailable79Serviceoroptionnotimplemented,unspecified81Invalidtransactionindentifiervalue87UsernotmemberofCUG88Incompatibledestination91Invalidtransitnetworkselection95SemanticallyincorrectmessageNEMOTECHNOLOGIES23396Invalidmandatoryinformation97Messagetypenotnon-existent98Messagetypenotcompatiblewithprotocolstate99Informationelementnonexistentornotimplemented100ConditionalIEerror101Messagenotcompatiblewithprotocolstate102Recoveryontimerexpiry111Protocolerror,unspecified127Interworking,unspecified4CAF(CallFailed)52-1State:Testsystemfailure,参考CAD(CallDisconnect)第一项OSRASCause:n/a5CHI(ChannelInfo信道信息)12744179114101-11641357412744179114101-116413574ChannelTypeCarrierNumberCellIdLACRLTExtendedChannelTypeTimeslotBCCH1=controlchannel2=trafficchannel载频频点小区位置区-1=NotAvailable1=BCCH2=CCCH3=CBCH4=SDCCH5=RACH10=TCHhalfrate,firsthalf11=TCHhalfrate,secondhalf12=TCHfullrate13=TCHenhancedfullrate14=TCHfullrate,14,4kbsdata15=TCHfullrate,9,6kbsdata16=TCHfullrate,7,2kbsdata17=TCHfullrate,4,8kbsdata18=TCHfullrate,2,4kbsdata19=TCHhalfrate,4,8kbsdata,firsthalf20=TCHhalfrate,4,8kbsdata,secondhalf21=TCHhalfrate,2,4kbsdata,firsthalf22=TCHhalfrate,2,4kbsdata,secondhalf23=TCHfullrateFACCH24=TCHhalfrateFACCH,firsthalf25=TCHhalfrateFACCH,secondhalf26=AFS(Adaptivefullratespeech)27=AHS(Adaptivehalfratespeech)50=PBCCH51=PCCCH60=PDTCH时隙频点6CI(CarrierInterferenceC/I，载干比)1210ChannelC/I:21.8第二项7HOF(HandoverFailure切换失败)8L3U(Layer3Uplink)RACHCHANNELREQUEST46OriginatingSpeechCallLocationUpdateAnswertoPaging40,41,42,43,44,45,46,47,48,49,4A,4B,4C,4D,4E,4F,E701,02,03,04,05,06,07,08,09,0A,0B,0C,0D,0E,0F31,32,33,34,35,36,37,38,39,3A,3B,3C,3D,3E,3F§2正常信令流程§2.1呼叫建立及主叫释放信令流程Mobileoriginatingcallestablishmenta)Callclearinginitiatedbythenetworkb）CallclearinginitiatedbytheMS1CallAttempt18:52:13.947（CAA）呼叫尝试CallType:Voicecall呼叫类型Count:1第几次呼叫PhoneNumber:13673640441被叫号码2Layer3Downlink18:52:14.152SYSTEMINFORMATIONTYPE2邻小区BCCH频点描述：携带BA和BA-IND（BCCH分配序号指示）NCCPermitted网络色码允许RACH控制消息：MaxRetrans最大重传次数TX-integer扩展传输时系数RE是否允许呼叫重建EC紧急呼叫CBA小区是否被禁止ACC被限制接入的用户级别在BCCH上发送用于小区重选3Layer3Downlink18:52:14.153SYSTEMINFORMATIONTYPE3CELLID小区识别LAC位置区识别控制信道描述：ATT移动台附着分离允许指示BS-AG-BLKS-RES接入允许AGCH块数CCCH-CONF公共控制信道结构,即信道组合方式CBQ2CellBarQualify2inactiveBS-PA-MFRMS传输寻呼消息留给同一寻呼组的51TDMA复帧数T3212timeout周期性位置更新时间30(=3hours)小区选项：RADIO-LINK-TIMEOUT无线链路超时64DTX不连续发射指示PWRC功率控制指示小区选择参数CELL-RESELECT-HYSTERESIS小区重选滞后值6dBMS-TXPWR-MAX-CCH移动台接入小区应使用的最大TX功率电平5RX