GSM信令流程详解-张威

1.1鉴权一般过程.......................................................................................................................................................................31.2.1鉴权异常情况(一)_____VLR不认识TMSI.....................................................................................................................31.2.2鉴权异常情况(二)_____MS用TMSI标识时鉴权核对结果异常...................................................................................42.1位置更新操作(一)____位置更新仅涉及本VLR...............................................................................................................52.2位置更新操作(二).................................................................................................................................................................63.1.1呼叫接续信号流程____移动用户呼叫移动用户(主被叫MS在同一MSC内)(一).......................................................83.1.2呼叫接续信号流程____移动用户呼叫移动用户(主被叫MS在同一MSC中)(二).......................................................93.1.3呼叫接续流程____挂机过程..........................................................................................................................................103.2.1呼叫接续信号流程____固定用户呼叫移动用户(一)...................................................................................................113.2.2呼叫接续流程____固定用户呼叫移动用户(二)...........................................................................................................123.2.3呼叫接续信号流程____固定用户呼叫移动用户的挂机过程.....................................................................................134.1切换控制流程____同MSC内基站间切换........................................................................................................................144.2.1切换控制流程____基本切换处理..................................................................................................................................154.2.2切换控制流程____后续切换流程(MS离开MSCb漫游到MSCb')...............................................................................16AUC鉴权中心BSS基站子系统CKSN流水号GMSC关口移动交换中心HLR归属位置寄存器IMSI国际移动用户识别码ISDN综合业务数字网HON漫游号码Kc加密键LAI位置区标识MS移动用户MSC移动交换中心MSRN漫游号码PSTN公共交换电话网PVLR先前的拜访位置寄存器RACH随机接入信道RAND鉴权随机数RAND/SRES/Kc鉴权三元组SDCCH独立专用控制信道SRES鉴权响应TCH业务信道TMSI临时移动用户识别码TUP电话用户部分VLR拜访位置寄存器VMSC拜访移动交换中心1.1鉴权一般过程1.2.1鉴权异常情况(一)_____VLR不认识TMSIMSBSSMSCVLRHLR/AUCREQUEST(CKSNo,IMSI/TMSI)相关MAP消息Sendparameters(IMSI/TMSI)(CKSNo,IMSI/TMSI)(与呼叫建立,位置更新,补充业务有关的业务请求)Authenticationparameters(RAND/SRES/Kc)Authenticate(RAND,CKSNn)Authenticationrequest(RAND,CKSNn)Authenticationresponse(SRES)Authenticationresponse(SRES)相关的MAP消息响应RESPONSE(相关业务请求接受)Authenticationreject合法用户非法用户合法用户:业务请求接收消息非法用户:业务请求拒绝消息鉴权核对成功:合法用户失败:非法用户MSBSSMSCVLRHLR/AUCREQUEST(CKSNo,TMSI)(与呼叫建立,位置更新,补充业务有关的业务请求)相关的MAP消息(CKSNo,TMSI)VLR不认识TMSI,启动识别过程*ProvideIMSI(TMSI)IdentityrequestIdentityresponse(IMSI)IMSIacknowledge(IMSI)Sendparameters(IMSI)Authenticationparameters(RAND/SRES/Kc)Authenticate(RAND,CKSNn)Authenticationrequest(RAND,CKSNn)Authenticationresponse(SRES)Authenticationresponse(SRES)相关的MAP消息响应RESPONSE(相关业务请求接受)Authenticationreject合法用户非法用户鉴权核对成功:合法用户失败:非法用户合法用户:业务请求接受消息非法用户:业务请求拒绝消息UmBSSAPMAPMAPABD1.2.2鉴权异常情况(二)_____MS用TMSI标识时鉴权核对结果异常2.1位置更新操作(一)____位置更新仅涉及本VLRMSBSSMSCVLRHLR/AUCUmBSSAPMAPMAPABDREQUEST(CKSNo,TMSI)(与呼叫建立,位置更新,补充业务有关的业务请求)相关的MAP消息Sendparameter(TMSI)Authenticationparameter(RAND/SRES/Kc)Authenticate(RAND,CKSNn)Authenticationrequest(RAND,CKSNn)Authenticationresponse(SRES)Aurhenticationresponse(SRES)ProvideIMSI(TMSI)IdentityrequestIdentityresponse(IMSI)IMSIacknowledge(IMSI)Sendparameters(IMSI)Authenticationparameters(RAND/SRES/Kc)Authenticate(RAND.CKSNn)Authenticationrequest(RAND,CKSNn)Authenticationresponse(SRES)Authenticationresponse(SRES)相关的MAP消息响应RESPONSE(相关业务请求接受)Authenticationreject鉴权核对结果异常,由于MS用TMSI标识,因此启动识别过程若MS提供的IMSI和VLR中存储的与TMSI对应的不相同,则继续以下过程;否则作为非法用户处理鉴权核对成功:合法用户失败:非法用户合法用户:业务请求接受消息非法用户:业务请求拒绝消息合法用户非法用户MSBSSMSCVLRUmBSSAPMAPABLocationupdatingrequest(位置更新类型,CKSNo,LAIo,IMSI/TMSI)COMPLETEL3INFORMATION(Layer3信息)Updatelocationarea(CKSN,LAIo,LAIn,IMSI/TMSI)Authentication(RAND,CKSNn)Authenticationrequest(RAND,CKSNn)Authenticationresponse(SRES)Authenticationresponse(SRES)Setcypheringmode(Kc和算法标识符或不进行编码的指示)ForwardnewTMSI(TMSI)Updatelocationareaack.(HLR号)CYPHERMODECOMMAND(Kc,L3头部消息)CYPHERMODECOMPLETELocationupdatingaccept(TMSIn,LAIn)TMSIreallocationcompleteCLEARCOMMAND(资源释放)CLEARCOMPLETETMSIacknowledge(cause,L3头部消息)2.2位置更新操作(二)____位置更新涉及本VLR和HLR(当MS进入新的VLR或MS首次登录,或相关网络数据丢失后,且MS都使用IMSI来标识自己)MSBSSMSCVLRHLR/AUCLocatingupdatingrequest(IMSI)UmBSSAPMAPMAPABDCOMPLETEL3INFO.Updatelocationarea(IMSI)Sendparameters(IMSI)Authenticationparameters(RAND/SRES/Kc,IMSI)AuthenticateAuthenticationrequestAuthenticationresponseAuthenticationresponseUpdatelocationInsertesubscriberdataSubscriberdatainsertionack.cancellocationcancellocationack.PVLRUpdatelocationack.(HLR号)SetcypheringmodeForwardnewTMSIUpdatelocationareaack.CYPHERMODECOMMANDCYPHERMODECOMPLETELocationupdatingaccepteTMSIreallocationcompleteTMSIacknowledgeCLEARCOMMANDCLEARCOMPLETE先前的VLR从正在单中删除相关的MS数据拜访本VLR的MS名3.1.1呼叫接续信号流程____移动用户呼叫移动用户(主被叫MS在同一MSC内)(一)UmABDAUmMSaBSSaMSCVLRHLRAUCB