《gsm呼叫流程大全》由会员分享，可在线阅读，更多相关《gsm呼叫流程大全（98页珍藏版）》请在金锄头文库上搜索。
1、gsm呼叫流程大全呼叫流程大全NOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLR 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 TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchanne
2、lrequiredNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequired BSC starts searching for a SDCCH channel - channel available - reservation - no channel available - blockingNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res. BS
3、C starts searching for a SDCCH channel - channel available - reservation - no channel available - blockingNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequir
4、edSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.NOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRch
5、annelrequiredSDCCH 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 TELECOMMUNICATIONSchannelrequ
6、estMSBTSBSCMSCVLRchannelrequiredSDCCH 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 BSCNOK
7、IA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCC
8、H Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentESTABLISHMENT PARTNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassi
9、gnmentCM servicerequestNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequest required service mobile originated call/SMS mobile terminated
10、call/SMS location update call re-establishment IMSI detach request timer 3101 started in the mobileNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM s
11、ervicerequestestablishindicationNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindication timer 3101 stopped in the BSCNOKIA
12、 TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH 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. callSuc
13、c. SMS est.Unsucc. SMS est.SDCCH loc. update timer 3101 stopped in the BSCNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentimmediateassignmentCM servicerequestestablishindicationSucc.
14、Seiz. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestSDCCH assign.NOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassig
15、nmentimmediateassignmentCM 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 TELECOMMUNI
16、CATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH 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.U
17、nsucc. SMS est.SDCCH loc. updateCM servicerequestUANOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig
18、.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 TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.im
19、mediateassignmentSDCCH 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 TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchanne
20、lrequiredSDCCH 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 servic
21、erequestUA processaccess requestCYPHERING &ENCRYPTION PARTNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Sei
22、z. Orig.Succ. Seiz. Term.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationcha
23、nnelact. 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 request
24、NOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH 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. ca
25、llSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.
26、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
27、 requestA3SRESRANDKi (first 8 bits)NOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Ter
28、m.SDCCH call re est.SDCCH emerg. callSucc. SMS est.Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH
29、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 reque
30、stauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediatea
31、ssignmentCM 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 responseauthenticat
32、ion responseauthentication responseNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Ter
33、m.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 TELECOMMUNICATION
34、SchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH 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.
35、 SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeciphering mode commandNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannel
36、requiredSDCCH 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 service
37、requestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeciphering mode commandencryption commandNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz
38、 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 processa
39、ccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeciphering mode commandencryption commandciphering mode commandNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH
40、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 proc
41、essaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeciphering mode commandencryption commandciphering mode commandA8ciphering key (Kc)RANDKiNOKIA TELECOMMUNICATIONSchannelrequestMSBTS
42、BSCMSCVLRchannelrequiredSDCCH 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.
43、updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeciphering mode commandencryption commandciphering mode commandciphering mode completeNOKIA TELECOMMUN
44、ICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH 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.
45、Unsucc. SMS est.SDCCH loc. updateCM servicerequestUA processaccess requestauthenticate requestauthentication requestauthentication requestauthentication responseauthentication responseauthentication response set ciphering modeciphering mode commandencryption commandciphering mode commandciphering mo
46、de completeciphering mode completeNOKIA TELECOMMUNICATIONSchannelrequestMSBTSBSCMSCVLRchannelrequiredSDCCH seiz att.SDCCH busy att.Ghost CCCH Res.channelactivationchannelact. ackn.immediateassignmentSDCCH assign.immediateassignmentCM servicerequestestablishindicationSucc. Seiz. Orig.Succ. Seiz. Term
47、.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 commanden
48、cryption commandciphering mode commandciphering mode completeciphering mode completeaccess request acceptedNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSINOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mand combintation of new TMSI and LAI combintation of IMSI and LAINOKIA TELECO
49、MMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTM
50、SI pleteNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)NOKIA TELECOMMU
51、NICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH) number of the called subscriber type of call (speech/data)NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation complet
52、eTMSI pleteTMSI ackn.setup (SDCCH)setupNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.T
53、MSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingN
54、OKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.
55、TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend
56、 info for outg. callcompletecallcallproceedingcall proceedingassignmentrequest command from MSC to BSC to activate channel in the A-interfaceNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info
57、 for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall pr
58、oceedingassignmentrequestphys. contextrequestphys. contextconfirmNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphy
59、s. contextrequestphys. contextconfirm BSC starts searching for a TCH channel - no channel available - queing - channel available - reservation & activationNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)
60、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
61、 TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req.
62、rej. lack + A_BSCchannelactivationNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextc
63、onfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall
64、 proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTM
65、SI 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 descriptiontim
66、eslotsubchanneltraining sequence codeRF channel number channel mode (speech/data) power level timer 3107 started mobile changes from SDCCH to TCHNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend
67、info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandtraffic channel seizedNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TM
68、SITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.ac
69、knowledgeassignment commandSABM(FACCH)NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. cont
70、extconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupse
71、nd info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindication synchronisation with transcoder starts BS
72、C connects A-interface and Abis-interface, speech channel switched throughNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentr
73、equestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation com
74、pleteTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicat
75、ionUA(FACCH)assignment completeNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconf
76、irmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment complete timer 3107 stoppedNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation complete
77、TMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA
78、(FACCH)assignment completeassignmentcompleteA_MSCNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextreques
79、tphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleaseNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI realloc
80、ation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment com
81、mandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleasechannelrelease ackn.NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcomplet
82、ecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleasechanne
83、lrelease ackn.alertingNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH re
84、questTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleasechannelrelease ackn.alertingalertingNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMS
85、I reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassig
86、nment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleasechannelrelease ackn.alertingalertingconnectNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setu
87、psend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentc
88、ompleteA_MSCchannelreleasechannelrelease ackn.alertingalertingconnectconnect (FACCH)NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedinga
89、ssignmentrequestphys. contextrequestphys. contextconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleasechannelrelease ackn.alertingalertingconne
90、ctconnect (FACCH)connect ackn. (FACCH)NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLR forward new TMSITMSI mandTMSI reallocation com.TMSI reallocation completeTMSI pleteTMSI ackn.setup (SDCCH)setupsend info for outg. callcompletecallcallproceedingcall proceedingassignmentrequestphys. contextrequestphys. cont
91、extconfirmTCH requestTCH norm seizTCH req. rej. lack + A_BSCchannelactivationchannel act.acknowledgeassignment commandSABM(FACCH)establishindicationUA(FACCH)assignment completeassignmentcompleteA_MSCchannelreleasechannelrelease ackn.alertingalertingconnectconnect (FACCH)connect ackn. (FACCH)connect
92、ackn.NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultrelease by mobile subscriberNOKIA TELECOMMUNICATIONSMSBTSB
93、SCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disco
94、nnectreleaseNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)disconnectreleaseNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FACCH)disconn
95、ectreleaseNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FACCH)releasecompleteB_MSCdisconnectreleaseNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)rele
96、ase (FACCH)release complete (FACCH)releasecompleteB_MSCdisconnectreleaseclearcommand BSC releases A-interface speech circuitNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FACCH)releasecompleteB_MSCdisconnectre
97、leaseclearcommandchannel release(FACCH)NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FACCH)releasecompleteB_MSCdisconnectreleaseclearcommandchannel release(FACCH)deactivateSACCHNOKIA TELECOMMUNICATIONSMSBTSBS
98、CMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FACCH)releasecompleteB_MSCdisconnectreleaseclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdis
99、connect (FACCH)release (FACCH)release complete (FACCH)releasecompleteB_MSCdisconnectreleaseclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)release (FACCH)release complete (FA
100、CCH)releasecompleteB_MSCMS starts listening toBCCH againdisconnectreleaseclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)NOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectreleaserelease (FACCH)release complete (FAC
101、CH)releasecompleteB_MSCclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)releaseindicationNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectreleaserelease (FACCH)release complete (FACCH)releasecompleteB_MSCclearcomma
102、ndchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)releaseindicationRF channelreleaseNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectreleaserelease (FACCH)release complete (FACCH)releasecompleteB_MSCclearcommandchannel releas
103、e(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)releaseindicationRF channelreleaseRF channelrelease ackn.B_BSCNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectreleaserelease (FACCH)release complete (FACCH)releasecompleteB_MSCclearcommandch
104、annel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)releaseindicationRF channelreleaseRF channelrelease ackn.B_BSCclearcompleteNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectreleaserelease (FACCH)release complete (FACCH)releaseco
105、mpleteB_MSCclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)releaseindicationRF channelreleaseRF channelrelease ackn.B_BSCclearcompleteSCCPreleasedNOKIA TELECOMMUNICATIONSMSBTSBSCMSCVLRmeasurementreport (SACCH)measurementreport/resultdisconnect (FACCH)disconnectreleaserelease (FACCH)release complete (FACCH)releasecompleteB_MSCclearcommandchannel release(FACCH)deactivateSACCHDISC(FACCH)UA(FACCH)releaseindicationRF channelreleaseRF channelrelease ackn.B_BSCclearcompleteSCCPreleasedSCCPreleased ackn.
