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channelrequestMSBTSBSCMSCVLRchannelMSBTSBSCMSCVLRchannelrequestMSBTSBSCMSCVLR
establishmentcause
answerforpaging(MTC)
emergencycall
callre-establishment
userrequest(MOC,SMS,suppl.service)
otherserives(loc.update,IMSIdetach)
randomnumberchannelMSBTSBSCMSCVLRestablischannelrequestMSBTSBSCMSCVLRchannelrequiredchannelMSBTSBSCMSCVLRchannelchannelrequestMSBTSBSCMSCVLRchannelrequiredBSCstartssearchingforaSDCCHchannel
-channelavailable->reservation
-nochannelavailable->blockingchannelMSBTSBSCMSCVLRchannelBchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.BSCstartssearchingforaSDCCHchannel
-channelavailable->reservation
-nochannelavailable->blockingchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.channelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentinformationincluded
pagemode
timingadvance
channeldescription
timeslot
subchannel
trainingsequencecode
RFchannelnumber
timer3101startedintheBSCchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHrmationincluded
pagemode
timingadvance
channeldescription
timeslot
subchannel
trainingsequencecode
RFchannelnumber
timer3101startedintheBSCchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentESTABLISHMENTPARTchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestrequiredservice
mobileoriginatedcall//SMS
mobileterminatedcall/SMS
locationupdate
callre-establishment
IMSIdetachrequest
timer3101startedinthemobilechannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationtimer3101stoppedintheBSCchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updatetimer3101stoppedintheBSCchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentimmediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestSDCCHassign.channelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentimmediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestSDCCHassign.BSCstartstoinitiatesignallingconnection
controlpart(SCCP)connectionchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAtimer3101stoppedinthemobilechannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestCYPHERING&ENCRYPTIONPARTchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestauthenticationrequestchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestauthenticationrequestA3SRESRANDKi(first8bits)channelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestauthenticationrequestauthenticationresponsechannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestauthenticationrequestauthenticationresponseauthenticationresponsechannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestauthenticationrequestauthenticationresponseauthenticationresponseauthenticationresponsechannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestauthenticationrequestauthenticationresponseauthenticationresponseauthenticationresponsesetcipheringmodechannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestauthenticationrequestauthenticationresponseauthenticationresponseauthenticationresponsesetcipheringmodecipheringmodecommandchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestauthenticationrequestauthenticationresponseauthenticationresponseauthenticationresponsesetcipheringmodecipheringmodecommandencryptioncommandchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestauthenticationrequestauthenticationresponseauthenticationresponseauthenticationresponsesetcipheringmodecipheringmodecommandencryptioncommandcipheringmodecommandchannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestauthenticationrequestauthenticationresponseauthenticationresponseauthenticationresponsesetcipheringmodecipheringmodecommandencryptioncommandcipheringmodecommandA8cipheringkey(Kc)RANDKichannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestauthenticationrequestauthenticationresponseauthenticationresponseauthenticationresponsesetcipheringmodecipheringmodecommandencryptioncommandcipheringmodecommandcipheringmodecompletechannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestauthenticationrequestauthenticationresponseauthenticationresponseauthenticationresponsesetcipheringmodecipheringmodecommandencryptioncommandcipheringmodecommandcipheringmodecompletecipheringmodecompletechannelMSBTSBSCMSCVLRchannelSDchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCHseizatt.SDCCHbusyatt.GhostCCCHRes.channelactivationchannelact.ackn.immediateassignmentSDCCHassign.immediateassignmentCMservicerequestestablishindicationSucc.Seiz.Orig.Succ.Seiz.Term.SDCCHcallreest.SDCCHemerg.callSucc.SMSest.Unsucc.SMSest.SDCCHloc.updateCMservicerequestUAprocessaccessrequestauthenticaterequestauthenticationrequestauthenticationrequestauthenticationresponseauthenticationresponseauthenticationresponsesetcipheringmodecipheringmodecommandencryptioncommandcipheringmodecommandcipheringmodecompletecipheringmodecompleteaccessrequestacceptedchannelMSBTSBSCMSCVLRchannelSDMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewMSBTSBSCMSCVLRforwardnewTMSITMSImandcombintationofnewTMSI
andLAI
combintationofIMSI
andLAIMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.MSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.MSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)MSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)numberofthecalled
subscribertypeofcall(speech/data)MSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestcommandfromMSCtoBSCtoactivate
channelintheA-interfaceMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmBSCstartssearchingforaTCHchannel
-nochannelavailable->queing
-channelavailable->reservation&activationMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmTCHrequestTCHnormseizTCHreq.rej.lack+A_BSCBSCstartssearchingforaTCHchannel
-nochannelavailable->queing
-channelavailable->reservation&activationMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmTCHrequestTCHnormseizTCHreq.rej.lack+A_BSCchannelactivationMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmTCHrequestTCHnormseizTCHreq.rej.lack+A_BSCchannelactivationchannelact.acknowledgeMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmTCHrequestTCHnormseizTCHreq.rej.lack+A_BSCchannelactivationchannelact.acknowledgeassignmentcommandMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmTCHrequestTCHnormseizTCHreq.rej.lack+A_BSCchannelactivationchannelact.acknowledgeassignmentcommandinformationincluded
channeldescription
timeslot
subchannel
trainingsequencecode
RFchannelnumber
channelmode(speech/data)
powerlevel
timer3107started
mobilechangesfromSDCCHtoTCHMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmTCHrequestTCHnormseizTCHreq.rej.lack+A_BSCchannelactivationchannelact.acknowledgeassignmentcommandtrafficchannelseizedMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmTCHrequestTCHnormseizTCHreq.rej.lack+A_BSCchannelactivationchannelact.acknowledgeassignmentcommandSABM(FACCH)MSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmTCHrequestTCHnormseizTCHreq.rej.lack+A_BSCchannelactivationchannelact.acknowledgeassignmentcommandSABM(FACCH)establishindicationMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmTCHrequestTCHnormseizTCHreq.rej.lack+A_BSCchannelactivationchannelact.acknowledgeassignmentcommandSABM(FACCH)establishindicationsynchronisationwith
transcoderstarts
BSCconnectsA-interfaceand
Abis-interface,speechchannel
switchedthroughMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmTCHrequestTCHnormseizTCHreq.rej.lack+A_BSCchannelactivationchannelact.acknowledgeassignmentcommandSABM(FACCH)establishindicationUA(FACCH)MSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmTCHrequestTCHnormseizTCHreq.rej.lack+A_BSCchannelactivationchannelact.acknowledgeassignmentcommandSABM(FACCH)establishindicationUA(FACCH)assignmentcompleteMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmTCHrequestTCHnormseizTCHreq.rej.lack+A_BSCchannelactivationchannelact.acknowledgeassignmentcommandSABM(FACCH)establishindicationUA(FACCH)assignmentcompletetimer3107stoppedMSBTSBSCMSCVLRforwardnewTMSIMSBTSBSCMSCVLRforwardnewTMSITMSImandTMSIreallocationcom.TMSIreallocationcompleteTMSIpleteTMSIackn.setup(SDCCH)setupsendinfoforoutg.callcompletecallcallproceedingcallproceedingassignmentrequestphys.contextrequestphys.contextconfirmTCHrequestTCHnormseizTCHreq.rej.lack+A_BSCchannelactivationchannelact.acknowledgeassignmentcommandSABM(FACCH)establishindicationUA(FACCH)assignmentcompleteassignmentcompleteA_MSCMSBTSBSCMS
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