GSM移动通信系统原理培训-有线接口信令协议

1、上海大唐移动通信设备有限公司2003.1212主叫流程（一）MSBSCChannel activation ackChannel activationChannel requiredCM service acceptCall proceedingSABM(cm_serv_req)Immediate assign commandestablish indicationBTSChannel requestUA(cm_serv_req)Immediate assignment SetupData request(CM service accept)Data Ind(Setup)Data reques

2、t(Call proceeding)3主叫流程（二）MSBSCBTSChannel activation ackAssignment commandestablish indicationAssignment CompleteDeactivate SACCHRelease request(local end rel)Release confirmRF Channle releaseRF Channel release ackAlertingConnectConnect acknowledgeSABMUAChannel activationData req.(Assignment command

3、)Data Ind.(Assignment Complete)Data req.(Alerting)Data req.(Connect)Data Ind.(Connect acknowledge)4主叫流程（三）MSBSCBTSChannel ReleaseRelease CompleteReleaseRF Channle releaseDISCDeactivate SACCHRF Channel release ackRelease IndicationUADisconnectData Ind.(Disconnect)Data Req.(Release)Data Ind.(Release C

4、omplete)Data Req.(Channel Release)5主叫流程（四）MSBSCBTSChannel ReleaseRelease CompleteReleaseRF Channle releaseDISCDeactivate SACCHRF Channel release ackRelease IndicationUADisconnectData Ind.(Disconnect)Data Req.(Release)Data Ind.(Release Complete)Data Req.(Channel Release)6被叫流程（一）MSBSCBTSChannel activa

5、tion ackChannel activationChannel requiredCall confirmSABM(pag_resp)Immediate assign commandestablish indicationChannel requestUA(pag_resp)Immediate assignment SetupCM service acceptPaging CommandPaging RequestData req.(CM service accept)Data req.(Setup)Data ind.(Call confirm)7被叫流程（二）MSBSCBTSChannel

6、 activation ackAssignment commandestablish indicationAssignment CompleteDeactivate SACCHRelease requestRelease confirmRF Channle releaseRF Channel release ackAlertingConnectConnect acknowledgeSABMUAChannel activationData req.(Assignment command)Data ind.(Assignment Complete)Data ind.(Alerting)Data i

7、nd.(Connect)Data req.(Connect acknowledge)8小区间切换MSBSCBTS1BTS2Channel activationChannel activation ackMeasurement resultHandover commandMeasurement reportHandover accessHandover completeSABMUAData ind.(HO complete)Physical informationestablish indicationHandover detectionRelease Request(local)Release

8、 ConfirmationRF Channel Release ACKRF Channel ReleaseData req.(HO command)910A接口信令11A接口信令MSBSSMSCASSIGNMENT REQUESTASSIGNMENT COMMANDASSIGNMENT COMPLETEASSIGNMENT COMPLETEASSIGNMENT REQUESTChannel TypePriorityCircuit Identity Code(MSC Allocate)Downlink DTX FlagInterference Band To Be UsedClassmark I

9、nformation 2ASSIGNMENT COMPLETERR CauseCircuit Identity CodeCell IdentifierChosen ChannelCircuit PoolSpeech Version(Chosen)Channel TypeSpeech/data indicator:Speech/Data/SignalingChannel rate and type:Full rate(Half rate)/SDCCHPermitted speech version indication:FRV1/FRV2(EFR)PriorityPreemption Capab

10、ility IndicatorPriority Level:114Queueing Allowed Indicator:Allowed/not AllowedPreemption Vulnerability IndicatorCircuit Identity Codea-k:PCM No.,max 2048xxxxx:timeslot No.Interference Band To Be Usedbitmap format for band1band5RR CauseNormalCircuit PoolNo1:FRV1;FR Data 12/6/3.6kbit/sNo4:FRV2; FR Da

11、ta 12/6/3.6kbit/sN05:FRV1;FRV2; FR Data 12/6/3.6kbit/sClassmark Information 2Phase1/Phase2 MSControlled Early Classmark Sending RF Power CapabilityPseudo Synchronization CapabilitySupplementary Service Screening IndicationMT SMS pt. To pt. CapabilityFrequency Capability(GSM900 Extended?)A5/1;A5.2;A5

12、/3Classmark 3 T1012A接口信令MSBSSMSCASSIGNMENT REQUESTASSIGNMENT COMMANDASSIGNMENT FAILUREASSIGNMENT FAILUREASSIGNMENT FAILURECauseRR CauseCircuit PoolCircuit Pool ListCauseRequested terrestrial resource unavailableRequested transcoding/rate adaption availableRequested speech version unavailableCircuit

13、pool mismatchSwitch circuit pool/Terrestrial circuit already allocatedEquipment failure/No radio resource available/O&M intervention Radio interface message failureRadio interface failure,reversion to old channelT10ASSIGNMENT FAILUREASSIGNMENT FAILURE13A接口信令MSBSSMSCClear RequestCauseCauseRadio i

14、nterface message failureO&M interventionProtocol error between BSS and MSCPreemptionCLEAR COMMANDCLEAR REQUESTCLEAR COMPLETEClear CommandCauseCauseCall controlO&M interventionEquipment failureHandover successfulProtocol error between BSS and MSC14A接口信令Handover RequiredCauseResponse RequestCe

15、ll Identifier List(Preferred)Circuit Pool ListCurrent ChannelSpeech Version(Used)Queueing IndicatorCauseUplink QualityUplink StrengthDownlink QualityDownlink StrengthDistanceBetter CellTrafficResponse toMSC InvocationDirected RetrySwitch Circuit PoolPreemptionO&M InterventionResponse RequestRequ

16、est HANDOVER REQUIRED REJECT if result in no handover Cell Identifier ListMax n,which is set by O&M,from 1 to 16, list is given in order of preferenceCauseO&M interventionEquipment failureRequested terrestrial resource unavailableInvalid message contentsRequested transcoding/rate adaptation

17、unavaliableCauseRequested terrestrial resource unavailable Ciphering algorithm not supported Requested transcoding/rate adaptation unavaliable Requested Speech version unavailableCircuit pool mismatch Switch circuit poolO&M interventionEquipment failureNo radio resource available Invalid cellRad

18、io interface failure,reversion to old channelTerrestrial resource already allocatedHandover RequestChannel TypeEncryption InformationClassmark Information 1 or 2Cell Identifier(Serving)PriorityCircuit Identity CodeDownlink DTX FlagCell Identifier(Target)Interference Band To Be UsedCauseClassmark Inf

19、ormation 3Current ChannelSpeech version(Used)Config. Evolution IndChosen Encryption Algorithm(Serving)Configuration Envolution IndicationSMI:Subsequent Modification Indication,whether modification is allowed or notClassmark Information 1Phase1/Phase2 MSControlled Early Classmark Sending RF Power Cap

20、abilityA5/1 Classmark Information 3Multi-bands supported,E-GSM/DCS1800/R-GSMRF Power Capability for each bandA5/4,A5/5,A5/6,A5/7UCS2Handover FailureCauseRR CauseCircuit PoolCircuit Pool ListHandover Required RejectCauseHandover Request ACKLayer3 InformationChosen ChannelChosen Encryption AlgorithmCi

21、rcuit PoolCircuit Identity CodeHandover CommandLayer3 InformationCell IdentifierMSBSSMSCHANDOVER REQUIREDHANDOVER REQUIED(1)T7HANDOVER COMMANDHANDOVER REQUIRED REJECTHANDOVER REQUESTHANDOVER FAILUREHANDOVER REQUEST ACKT8HANDOVER COMMANDHANDOVER ACCESSHANDOVER DETECTHANDOVER COMPLETEHANDOVER COMPLETE

22、CLEAR COMMANDCLEAR COMPLETECLEAR REQUESTHANDOVER FAILURECLEAR COMMANDCLEAR COMPLETEHANDOVER FAILUREHandover DetectNo information element except for message typeHandover CompleteRR Cause15A接口信令Handover PerformedCauseCell IdentifierChosen ChannelChosen Encryption AlgorithmSpeech Version(Chosen)MSBSSMS

23、CT8HANDOVER COMMANDCLEAR COMMANDCLEAR COMPLETECLEAR REQUESTHANDOVER FAILUREHANDOVER ACCESSHANDOVER COMPLETEHANDOVER PERFORMEDCauseUplink QualityUplink StrengthDownlink QualityDownlink StrengthDistanceBetter CellTrafficDirected RetrySwitch Circuit PoolPreemptionO&M Intervention16A接口信令Handover Per

24、formedCauseCell IdentifierChosen ChannelChosen Encryption AlgorithmSpeech Version(Chosen)MSBSSMSCT10ASSIGNMENT COMMANDCLEAR COMMANDCLEAR COMPLETECLEAR REQUESTASSIGNMENT FAILUREASSIGNMENT COMPLETEHANDOVER PERFORMEDCauseUplink QualityUplink StrengthDownlink QualityDownlink StrengthSwitch Circuit PoolO

25、&M Intervention17A接口信令MSBSSMSCPagingIMSITMSICell Identifier ListChannel NeededCell Identifier ListCell Identification discrimination:1.CGI2.LAC+CI3.CI4.No Cell5.LAI6.LAC7.All Cells on the BSSPAGINGPAGING REQUEST TYPE 1/2/3Channel NeededAny channel(default)SDCCHTCH/FTCH/H or TCH/F18A接口信令MSBSSMSCC

26、M SERVICE REQUESTPAGING RESPONSECOMPLETE LAYER 3 INFORMATIONComplete Layer 3 InformationCell IdentifierLayer 3 InformationChosen ChannelCM REESTABLISHMENT REQUESTLOCATION UPDATING REQUESTIMSI DETACHExtract classmark information19A接口信令MSBSSMSCClassmark updateClassmark Information 2Classmark Informati

27、on 3CLASSMARK REQUESTCLASSMARK ENQUIRYCLASSMARK CHANGECLASSMARK UPDATE(option suppress or delay)CLASSMARK UPDATE(handover)20A接口信令MSBSSMSCCipher Mode CommandEncryption InformationCipher Response ModeCIPHER MODE COMMANDCIPHERING MODE COMMANDCIPHERING MODE COMPLETECIPHER MODE COMPLETECIPHER MODE REJECT

28、Encryption InformationPermitted algorithm:A5/1,A5/2, A5/3,A5/4, A5/5,A5/6, A5/7KeyCipher response ModeIMSI must (not) be included by MSCipher Mode RejectCauseCauseCiphering algorithm not supportedInvalid message contentsCipher Mode CompleteLayer 3 message contentsChosen Encryption Algorithm21A接口信令BS

29、SMSCASSIGNMENT REQUESTASSIGNMENT FAILUREQUEUING INDICATIONQueuing Indicationonly Message typeASSIGNMENT COMPLETECLEAR REQUEST(?)T11BSSMSCHANDOVER REQUESTHANDOVER FAILUREQUEUING INDICATIONHANDOVER REQUEST ACKHANDOVER FAILURETqho22A接口信令MSBSSMSCBLOCK/UNBLOCKBLOCKCircuit Identity CodeCauseConnection Rel

30、ease RequestedCauseNo radio resource availableO&M intervention Equipment failureT1BLOCK/UNBLOCK ACKBLOCK/UNBLOCK ACKBLOCK/UNBLOCKT1Notify to O&MBLOCK/UNBLOCK ACKNOWLEDGECircuit Identity CodeUNBLOCKCircuit Identity Code23A接口信令MSBSSMSCCIRCUIT GROUP BLOCK/UNBLOCKCIRCUIT GROUP BLOCKCauseCircuit

31、Identity CodeCircuit Identity Code ListCauseNo radio resource availableO&M intervention Equipment failureT20CIRCUIT GROUP BLOCK/UNBLOCK ACKCIRCUIT GROUP BLOCK/UNBLOCK ACKCIRCUIT GROUP BLOCK/UNBLOCKT20Notify to O&MCIRCUIT GROUP BLOCK/UNBLOCK ACKNOWLEDGECircuit Identity CodeCircuit Identity Co

32、de ListCIRCUIT GROUP UNBLOCKCircuit Identity CodeCircuit Identity Code ListCircuit Identity Code ListRange,Max 255,from CIC to CIC+255Status,no indication/block 24A接口信令MSBSSMSCBLOCK/UNBLOCKBLOCKCircuit Identity CodeCauseConnection Release RequestedCauseNo radio resource availableO&M intervention

33、 Equipment failureT21BLOCK/UNBLOCK ACKBLOCK/UNBLOCK ACKBLOCK/UNBLOCKT21Notify to O&MBLOCK/UNBLOCK ACKNOWLEDGECircuit Identity CodeUNBLOCKCircuit Identity Code25A接口信令MSBSSMSCCIRCUIT GROUP BLOCK/UNBLOCKCIRCUIT GROUP BLOCKCauseCircuit Identity CodeCircuit Identity Code ListCauseNo radio resource av

34、ailableO&M intervention Equipment failureT22CIRCUIT GROUP BLOCK/UNBLOCK ACKCIRCUIT GROUP BLOCK/UNBLOCK ACKCIRCUIT GROUP BLOCK/UNBLOCKT22Notify to O&MCIRCUIT GROUP BLOCK/UNBLOCK ACKNOWLEDGECircuit Identity CodeCircuit Identity Code ListCIRCUIT GROUP UNBLOCKCircuit Identity CodeCircuit Identit

35、y Code ListCircuit Identity Code ListRange,Max 255,from CIC to CIC+255Status,no indication/block 26A接口信令MSBSSMSCRESOURCE REQUESTPeriodicity100ms25500msRESOURCE INDICATION(1/2/3/4)RESOURCE INDICATION(3)RESOURCE INDICATION(1) condition metPeriodResource RequestPeriodicityResource Indication MethodCell

36、 IdentifierExtended Resource IndicationResource Indication Method1:Spontaneous resource information expected 2:One single resource infoprmation expected3:Periodic resource information expected4: No resource information expectedExtended Resource IndicationSM:Subsequent Mode(only valid forRIM=2)0-Meth

37、od 41-if RIM of before is 1 or 3, no changed; otherwise, 4TARR:Total Accessible Resource RequestedResource AvaliableBand1Band5, number of idle FR/HRResource IndicationResource Indication MethodResource AvaliableCell IdentifierTotal Resource Accessible27A接口信令MSBSSMSCRESETResetCauseCauseO&M interv

38、ention Equipment failureT13RESET ACKRESET (n)RESET (1)T16T1628A接口信令MSBSSMSCRESETResetCauseCauseO&M intervention Equipment failureT2RESET ACKRESET (n)RESET (1)T4T429A接口信令MSBSSMSCRESET CIRCUITReset CircuitCircuit Identity CodeCauseCauseO&M intervention Equipment failureRESET CIRCUIT ACKRESET C

39、IRCUIT(n)RESET CIRCUIT(1)T19T19UNEQUIPPED CIRCUITReset Circuit ACK/Unequipped CircuitCircuit Identity Code30A接口信令MSBSSMSCRESET CIRCUITReset CircuitCircuit Identity CodeCauseCauseO&M intervention Equipment failureRESET CIRCUIT ACKRESET CIRCUIT(n)RESET CIRCUIT(1)T12T12UNEQUIPPED CIRCUITReset Circu

40、it ACK/Unequipped CircuitCircuit Identity Code31A接口信令MSBSSMSCHANDOVER CANDIDATE ENQUIREHandover Candidate EnquireNumber of MSsCell Identifier ListCell IdentifierHANDOVER REQUIRED(1)HANDOVER REQUIRED(n)Handover Candidate ResponseNumber of MSsCell IdentifierHANDOVER CANDIDATE RESPONSE32A接口信令BSSMSCOver

41、loadCauseOVERLOADCauseProcessor overloadO&M interventionOVERLOAD(ignored)T18T17OVERLOADDecrease random access traffic by 1 stepDecrease random access traffic by 1 stepIncrease random access traffic by 1 step33A接口信令BSSMSCOverloadCauseCell IdentifierOVERLOADCauseProcessor overloadO&M intervent

42、ionCCCH overloadOVERLOAD(ignored)T6T5OVERLOADDecrease MSC originated traffic by 1 stepDecrease MSC originated traffic by 1 stepIncrease MSC originated traffic by 1 step34A接口信令MSBSSMSCDTAP MESSAGE(SAPI in DLCI0)SAPI “n” RejectDLCICauseSAPI “n” REJECTCauseO&M interventionProcessor overloadBSS not

43、equippedMS not equipped35A接口信令MSBSSMSCCONFUSIONConfusionCauseDiagnosticsCONFUSIONCauseInvalid message contentsInformation element or field missingIncorrect valueUnknown message typeUnknown information element Protocol error between BSS and MSCInvalid cellUNEQUIPPED CIRCUITUNEQUIPPED CIRCUITUnequippe

44、d CircuitCircuit Identity CodeCircuit Identity Code List36A接口信令BSSMSCBSSLOAD INDICATIONCauseO&M interventionEquipment failureNo radio resource availableProcessor overloadTraffic loadLoad IndicationTime IndicationCell IdentifierCell Identifier List(Target)Resource Situation(if without, the indica

45、ted cell is not able to perform incoming handover request)CauseLOAD INDICATIONTime Indication0:No value valid255:infiniteothers:10s2540sResource Situationnumber of SDCCH channel in each interference bandnumber of TCH/F channel in each interference band37A接口信令3839MAP所应用的接口 VLR-HLR 用户信息、位置信息 MSC-HLR 查

46、询路由 VLR-VLR 用户信息 MSC-MSC 切换、短消息 MSC-EIR 设备鉴权40MAP GSM网移动系统实体 归属位置寄存器(HLR) 拜访位置寄存器(VLR) 移动业务交换中心(MSC) 设备识别积存器(EIR) 关口局MSC(GMSC)41动态数据库VLRVLR (Visitor Location Register)：拜访位置寄存器。实际上是一个数据库，储存用户信息，主要包括： MSRN (Mobile Station Roaming Number) : 移动台漫游号码 TMSI (Temporary Mobile Subscriber Identification) : 临时

47、移动用户身份 移动台登记的位置区（LAC） 与补充业务有关的数据可分配一个MSRN，还可以分配一个TMSI用于用户的身份保密。42静态数据库HLRHLR (Home Location Register)：归属位置寄存器。实际上是一个数据库，主要储存二类数据： 用户数据，主要包括： 用户的身份IMSI (International Mobile Subscriber Identification) 用户ISDN号码 VLR地址 用户的位置信息43MAP的应用 GSM NO.7信令网的等级结构HSTPHSTPHSTPLSTPLSTPSPSPSP44信令网和话路网的对应关系TMSC1HSTPH&am

48、p;LSTPTMSC1TMSC2MSCLSTPTMSC2MSC 话路 信令链 45信令网的寻址方式 MAP是专为GSM要求而设计的，是TCAP的一个客户，位于TCAP之上。MAP协议支持一个物理实体同时和几个物理实体的通信，主要功能是支持移动用户的位置登记、位置删除、用户业务管理、参数管理、漫游、越区切换、鉴权、保密数据传输等。 CIC表示该消息属于哪条话音电路（它的长度是12比特，因此一条数字信令链路理论上可载送212 =4096条话路的信令消息）。在GSM信令网SP、STP间传送MAP信令消息必须有SCCP的支持，SCCP的地址是由GT、DPC、SSN组成。46MAP支持的程序 -位置登记

49、/删除 -切换 -复原 -操作维护 -补充业务 -短消息处理 -呼叫处理 IMEI的管理47位置登记/删除 VLR HLR PVLRSend AuthenSend Authen AckUpdate-locationCancel-locationCancel-location AckInsert Sub.DataInsert Sub.Date AckUpdate-location Ack48故障后复原程序VLR复原 VLR HLRProvide Roaming NumberProvide Roaming Number Ack.Send AuthenticationSend Authenticat

50、ion Ack.Restore Data49故障后复原程序VLR复原 Insert Sub. DataInsert Sub. Data AckRestore Data Ack.50故障后复原程序HLR复原 HLR VLR ResetUpdate LocationActive Trace ModeActive Trace Mode Ack.Insert Sub.DataInsert Sub.Data AckUpdate Location Ack51呼叫建立期间获得路由数据 GMSC HLR VLRSend Routing InformationSRI Ack.Provide Roaming Nu

51、mberPRN Ack.52移动发起短消息业务传送 MSC/VLR HLR SCForward SMForward SM AckSend Routing InfoSend Routing Infor for SM Ack.53短消息提醒程序MSC/VLR HLR SCReady for SMReady for SM Ack.Alert SMCAlert SMC Ack.54位置更新过程VLRHLRVLRBSSVMSCUmABnewoldLoc updatecancellationId inquiringLocation Update 的起因：的起因：1） SIM卡第一次使用卡第一次使用2）位置

52、区发生变化）位置区发生变化3）周期位置更新）周期位置更新4）IMSI attach/detachDDG55位置更新流程 (1)在同一VLR/MSC中的位置更新MSVMSCVLRBSSLoc upd reqCmpl L3 InfoUpd loc area Authenticate Authentication reqAuthentication respAuthenticate ackFwd new TMSI ackCipher mode cmdCiphering mode cmdUpd loc area ackCiphering mode compCipher mode compLoc upd

53、 accTMSI reallocation cmpFwd new TMSISet ciphering modeUpdate location areaTarget location area IdServing cell IdLocation update typeIMSITMSIPrevious location area IdUpdate location area ACKUser errorProvider errorUser errorunknown subscriberunknown location arearoaming not allowedillegal subscriber

54、illegal equipmentsystem failure;AuthenticateRANDCKSNAuthenticate ACKSRESSet Ciphering Modeciphering mode:no,A5/17KcForward New TMSITMSIForward New TMSI ACKProvider error56位置更新流程 (2)在新的VLR中的位置更新，原VLR可及MSVMSCVLRnBSSLoc upd reqUpd Loc area Auth.Auth. reqAuth. respAuth. ackSet ciph. modeCiph. Mode cmdCi

55、ph. mode cmdFWD new TMSICiph. mode cmpCiph. mode cmpLoc upd accFwd new TMSI ackTMSI reallocation cmpHLRUpd locUpd loc ackVLRoSend IdSend Id ackCancel location.Cancel location ackUpd Loc area ackSend IdentificationTMSISend Identification ackIMSIAuthentication setUser error:unidentified subscriberProv

56、ider errorUpdate locationIMSIMSC addressVLR numberLMSIUpdate location ackHLR numberUser errorProvider errorUser errorunknown subscriberroaming not allowedsystem failure;unexpected data valueCancel locationIMSILMSICancel location ackUser error: unexpected data valueProvider errorInsert subs dataInser

57、t subs data ackInsert subscriber dataIMSIMSISDN CategorySubscriber statusBearer service listTeleservice list Fwd info listCall bar info listCUG info listSS-data listOperator determined barring general dataOperator determined barring HPLMN dataRoaming restriction due to unsupported featureRegional su

58、bscription dataVLR CAMEL subscription infoInsert subscriber data ackBearer service listTeleservice listOperator determined barring general dataSS code listRegional subscription responseSupported CAMEL phasesUser error:unidentified subscriber,data missing,unexpected data valueProvider errorCmpl L3 In

59、fo57位置更新流程 (3)在新的VLR中的位置更新，原VLR不可及MSVMSCVLRnBSSLoc upd reqUpd Loc area Auth.Auth. reqAuth. respAuth. ackSet ciph. modeCiph. Mode cmdCiph. mode cmdFWD new TMSICiph. mode cmpCiph. mode cmpLoc upd accFwd new TMSI ackTMSI reallocation cmpHLRUpd locUpd loc ackVLRoCancel location.Cancel location ackUpd Lo

60、c area ackProvide IMSI ackIMSIuser error:absent subscriberProvider errorProvide IMSIID reqID respProvide IMSI ackSend Auth. infoSend Auth info ackInsert subs dataInsert subs data ackCmpl L3 Info58位置更新流程 (4)在新的VLR中的位置更新，原VLR可及，但信息丢失MSVMSCVLRnBSSLoc upd reqUpd Loc area Set ciph. modeCiph. Mode cmdCiph. mode cmdFWD new TMSICiph. mode cmpCiph. mode cmpLoc upd accFwd new TMSI ackTMSI reallocation cmp