GSM网络无线信令流程

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1、MSCPSTNHLRGMSCMAP_SEND_ROUTING_INFORMATIONIAI(TUP)MSTerminatedCallProcedureVLRMAP_PROVIDE_ROAMING_NUMBERDCBMAP_PROVIDE_ROAMING_NUMBERACKMAP_SEND_ROUTING_INFORMATIONACKIAI(TUP)MAP_PAGEMAP_SEND_INFO_I/C_CALLMSMSCBTSBSCPaging(UDT)(IMSI/TMSI,LAIorCGI)Paging

2、Command(IMSI/TMSI,paggroup,ch)PagingRequest(L2-UI)(IMSI/TMSI)RR(PCH)RR(RACH)ChannelRequestChannelRequiredChannelActivationChannelActivationACKImmediateAssignmentRR(AGCH)(L2-UI)AinterfaceAbisinterfaceUminterfaceBSSMAPContinue1PagingRESP(L2-SABM)ESTIND(Pa

3、gingResp)PagingRespCR(COMPL-L3-INFO)L2-UA(CKSN,MSID,CGI,CLrk2)CCRR(SDCCH)RR(SDCCH)BSSMAPPagingMSTerminatedCallProcedureImmediateAssignCommandT3113+T3113-T3120+T3120-T3101+T3101-MM(SDCCH)MM(SDCCH)RR(SDCCH)DTAP-MMRR(SDCCH)DTAP-MMBSSMAPMSBTSDATAREQAU

4、THREQUESTENCRCMDCIPHERMODCMDAbisinterfaceUminterfaceAUTHRESPONSEDATAINDCIPHERMODCOMMSCBSCAUTHREQUEST(DT1)(CKSN,RAND)AUTHRESPONSE(DT1)AinterfaceCIPHERMODCMD(DT1)(algonb,key)(SRES)DATAINDCIPHERMODCOM(DT1)BSSMAPContinue2DATAREQTMSIREALCMD

5、TMSIREALCOMDATAIND(newTMSI,LAI)TMSIREALCOM(DT1)TMSIREALCMD(DT1)DTAP-MMDTAP-MMMM(SDCCH)MM(SDCCH)MSTerminatedCallProcedureVLRMAP_AUTHENTICATEMAP_AUTHENTICATEACKMAP_SET_CIPHERING_MODEMAP_FORWARD_NEW_TMSIMAP_FORWARD_NEW_TMSIACKBint

6、erfaceT3260+T3260-MAP_PROCESS_ACCESS_REQMAP_PROCESS_ACCESS_REQ_ACKCC(SDCCH)CC(SDCCH)DTAP-CCDTAP-CCContinue3MSBTSDATAREQSET-UPAbisinterfaceUminterfaceCALLCONFIRMEDDATAINDMSCBSCSET-UP(DT1)CALLCONF(DT1)AinterfaceT303+MSTerminatedCallProced

7、ureT303-T310+VLRBinterfaceMAP_COMPLETE_CALLMSMSCBTSBSCASSIGNREQ(DT1)(Chtype,CIC,L3hd)PHYSCTXREQQUEUING(DT1)ChannelACTIVDATAREQChannelActivationACKRELEASEREQASSIGNCOMRR(FACCH)AinterfaceAbisinterfaceUminterfaceBSSMAPContinue4PHYSCTXCONFBSSMAP(TCH)

8、MD>ASSIGNCMDRR(SDCCH)(localend)(L2-SABM)ESTIND(L2-UA)RR(FACCH)RR(FACCH)DATAINDASSIGNCOM(DT1)RFCHANREL(SDCCH)BSSMAPRFCHANRELACK(BS/MSPOW,TA)Radio-resourceassignmentMSTerminatedCallProcedureCCTNT2+TNT2-T9103+T9103-CC(FAC