NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLR establishment cause answer for paging (MTC) emergency call call re-establishment user request (MOC, SMS, suppl.service) other serives (loc. update, IMSI detach) random numberNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequired BSC starts searching for a SDCCH channel - channel available - reservation - no channel available - blockingNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res. BSC starts searching for a SDCCH channel - channel available - reservation - no channel available - blockingNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignment information included page mode timing advance channel description timeslotsubchanneltraining sequence codeRF channel number timer 3101 started in the BSCNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign. information included page mode timing advance channel description timeslotsubchanneltraining sequence codeRF channel number timer 3101 started in the BSCNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentESTABLISHMENT PARTNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequest required service mobile originated call/SMS mobile terminated call/SMS location update call re-establishment IMSI detach request timer 3101 started in the mobileNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindication timer 3101 stopped in the BSCNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. update timer 3101 stopped in the BSCNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentimmediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestSDCCH assign.NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentimmediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestSDCCH assign. BSC starts to initiate signalling connection control part (SCCP) connection NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUANOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA timer 3101 stopped in the mobileNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestCYPHERING &ENCRYPTION PARTNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestA3SRESRANDKi (first 8 bits)NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication responseNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeciphering mode commandNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeciphering mode commandencryption commandNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeciphering mode commandencryption commandciphering mode commandNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeciphering mode commandencryption commandciphering mode commandA8ciphering key (Kc)RANDKiNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeciphering mode commandencryption commandciphering mode commandciphering mode completeNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeciphering mode commandencryption commandciphering mode commandciphering mode completeciphering mode completeNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeciphering mode commandencryption commandciphering mode commandciphering mode completeciphering mode completeaccess request acceptedNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSINOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.command combintation of new TMSI and LAI combintation of IMSI and LAINOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH) number of the called subscriber type of call (speech/data)NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequest command from MSC to BSC to activate channel in the A-interfaceNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirm BSC starts searching for a TCH channel - no channel available - queing - channel available - reservation & activationNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSC BSC starts searching for a TCH channel - no channel available - queing - channel available - reservation & activationNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment command information included channel descriptiontimeslotsubchanneltraining sequence codeRF channel number channel mode (speech/data) power level timer 3107 started mobile changes from SDCCH to TCHNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandtraffic channel seizedNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindication synchronisation with transcoder starts BSC connects A-interface and Abis-interface, speech channel switched throughNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment complete timer 3107 stoppedNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleaseNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleasechannelrelease ackn.NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleasechannelrelease ackn.alertingNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleasechannelrelease ackn.alertingalertingNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleasechannelrelease ackn.alertingalertingconnectNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleasechannelrelease ackn.alertingalertingconnectconnect (FACCH)NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleasechannelrelease ackn.alertingalertingconnectconnect (FACCH)connect ackn. (FACCH)NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLR forward new TMSITMSI realloc.commandTMSI reallocation com.TMSI reallocation completeTMSI realloc.completeTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleasechannelrelease ackn.alertingalertingconnectconnect (FACCH)connect ackn. (FACCH)connect ackn.NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultrelease by mobile subscriberNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectreleaseNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)disconnectreleaseNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FACCH)disconnectreleaseNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FACCH)releasecompleteB_MSCdisconnectreleaseNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FACCH)releasecompleteB_MSCdisconnectreleaseclearcommand BSC releases A-interface speech circuitNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FACCH)releasecompleteB_MSCdisconnectreleaseclearcommandchannel release(FACCH)NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FACCH)releasecompleteB_MSCdisconnectreleaseclearcommandchannel release(FACCH)deactivateSACCHNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FACCH)releasecompleteB_MSCdisconnectreleaseclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FACCH)releasecompleteB_MSCdisconnectreleaseclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FACCH)releasecompleteB_MSCMS starts listening toBCCH againdisconnectreleaseclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)NOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectreleaserelease (FACCH)release complete (FACCH)releasecompleteB_MSCclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)releaseindicationNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectreleaserelease (FACCH)release complete (FACCH)releasecompleteB_MSCclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)releaseindicationRF channelreleaseNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectreleaserelease (FACCH)release complete (FACCH)releasecompleteB_MSCclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)releaseindicationRF channelreleaseRF channelrelease ackn.B_BSCNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectreleaserelease (FACCH)release complete (FACCH)releasecompleteB_MSCclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)releaseindicationRF channelreleaseRF channelrelease ackn.B_BSCclearcompleteNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectreleaserelease (FACCH)release complete (FACCH)releasecompleteB_MSCclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)releaseindicationRF channelreleaseRF channelrelease ackn.B_BSCclearcompleteSCCPreleasedNOKIA TELECOMMUNICATIONSTSG 0071/en 1.0 / KoBra Copyright Nokia Telecommunications GmbHMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectreleaserelease (FACCH)release complete (FACCH)releasecompleteB_MSCclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)releaseindicationRF channelreleaseRF channelrelease ackn.B_BSCclearcompleteSCCPreleasedSCCPreleased ackn.