1、附錄 DGSM 通信流程MSBSSMSCVLRHLR/AUCREQUEST(CKSNo,IMSI/TMSI)( , , ) MAP (CKSNo,IMSI/TMSI)Send parameters (IMSI/TMSI)AuthenticationrequestAuthenticate (RAND,CKSNn)Authentication parameters(RAND/SRES/Kc)(RAND,CKSNn)Authenticationresponse(SRES)Authentication response (SRES) : : RESPONSE( )Authentication reje

2、ct MAP : : 鑒權(quán)一般過程UmBSSAPMSBSSAMSCMAPBVLRMAPDHLR/AUCREQUEST(CKSNo,TMSI)( , , ) MAP (CKSNo,TMSI)* VLR TMSI, Identity requestProvide IMSI(TMSI)Identity response (IMSI)IMSI acknowledge(IMSI)Send parameters (IMSI)Authentication parameters (RAND/SRES/Kc)Authentication request (RAND,CKSNn)Authentication re

3、sponse(SRES)Authenticate (RAND,CKSNn)RESPONSE ( )Authentication response (SRES) MAP : : : : Authentication reject 鑒權(quán)異常情況(一) VLR 不認(rèn)識 TMSIUmBSSAPMAPMAPMSBSSAREQUEST(CKSNo,TMSI)MSCB MAP VLRDHLR/AUC( , , ) Send parameter(TMSI) AuthenticateAuthentication parameterAuthentication request (RAND,CKSNn)Authen

4、tication response(SRES) Identity request(RAND,CKSNn) Aurhentication response (SRES) Provide IMSI(TMSI)(RAND/SRES/Kc) ,MS TMSI, MS IMSI VLR TMSI , ;Identity response(IMSI)Authentication request (RAND,CKSNn)IMSI acknowledge (IMSI)Authenticate (RAND.CKSNn) Send parameters (IMSI)Authentication parameter

5、s(RAND/SRES/Kc) : Authentication response(SRES)Authentication response(SRES) : RESPONSE ( )Authentication reject MAP : : 鑒權(quán)異常情況(二) MS 用 TMSI 標(biāo)識時鑒權(quán)核對結(jié)果異常UmMSBSSBSSAPAMSCMAPBVLRLocation updating request ( ,CKSNo,LAIo,IMSI/TMSI)Authentication requestCOMPLETE L3 INFORMATION(Layer 3 )(RAND,CKSNn)Update l

6、ocation area(CKSN,LAIo,LAIn,IMSI/TMSI)Authentication(RAND,CKSNn)Authentication response (SRES)Authentication response(SRES)Set cyphering mode(Kc )Forward new TMSI(TMSI)CYPHER MODE COMMAND (Kc,L3 )Update location area ack.(HLR )CYPHER MODE COMPLETELocation updating accept(TMSIn,LAIn) TMSI reallocatio

7、n completeCLEAR COMMAND( )TMSI acknowledge(cause,L3 )CLEAR COMPLETE位置更新操作(一) 位置更新僅涉及本 VLRUmBSSAPMAPMAPMSLocating updatingBSSMSCAVLRBDHLR/AUCrequest(IMSI)Authentication AuthenticationCOMPLETE L3 INFO.request responseUpdate location area (IMSI) Authenticate Authentication responseSend parameters(IMSI)

8、Authentication parameters (RAND/SRES/Kc,IMSI)Update location Inserte subscriber dataSubscriber data insertion ack.PVLRCYPHER MODE COMMAND CYPHER MODE COMPLETELocation updating accepte TMSI reallocation completeCLEAR COMMAND CLEAR COMPLETESet cyphering mode Forward new TMSI Update location area adk.T

9、MSI acknowledge Update location ack. (HLR ) cancel locationcancel location ack. VLR VLRMS MS 位置更新操作(二) 位置更新涉及本 VLR 和 HLR(當(dāng) MS 進(jìn)入新的 VLR 或 MS 首次登錄,或相關(guān)網(wǎng)絡(luò)數(shù)據(jù)丟失后,且 MS 都使用 IMSI 來標(biāo)識自己)MSaRACHUmBSSaAMSCBVLRDHLR AUCABSSbUmMSbSDCCH CM service request COMPLETE L3 INFO( CM service req.) (CKSN,IMSI/TMSI)CON_CONF

10、(SCCP CC)Authentication request(RAND,CKSNn)Process access req. ( CM service req.)AuthenticateSend parameters (IMSI/TMSI)Authentication para.AUT_INFO_REQAUT_INFO_PROV (IMSI,RAND/SRES/Kc)( )Authentication response(SRES)(RAND,CKSNn)Authen. res.(SRES)Set cyphering mode(IMSI,RAND/SRES/Kc) CM service acce

11、pt CIPHER MODE COMMAND(Kc) CIPHER MODE COMPLETEAccess req. accepted (IMSI/MSISDN) Setup ( MSISDN)Send info. for o/g call setup( service indication,call number)Call proceeding ASSIGNMENTREQUEST ASSIGNMENTCOMPLETEComplete Call( ) Send routing info. (MSISDN, )Provide roaming number(IMSI)VLR IMSI MSRNro

12、aming numberRouting infomation acknowledgesend info.for i/c call setup ,VLR page MS(LAI) PAGINGCOMPLETE L3 INFORMATION ( Page response)Page response呼叫接續(xù)信號流程 移動用戶呼叫移動用戶(主被叫 MS 在同一 MSC 內(nèi))(一)MSaUm BSSaAMSCBVLRDHLR AUCABSSbUmMSb CON_CONF(SCCP CC)Process access req.Send para.(IMSI/TMSI)Authen. para.AUT_I

13、NFO_REQ AUT_INFO_PROVAuthenticate (RAND,CKSNn)(IMSI,RAND/SRES/Kc)(IMSI,RAND/SRES/Kc)Authentication request(RAND,CKSNn) Authentication(SRES) ( )Authentication response(SRES) Set cyphering modeAccess request accepted Complete callCIPHER MODE COMMAND(Kc) CIPHER MODE COMPLETE Setup Call confirmed ASSIGN

14、MENT REQUEST ASSIGNMENT COMPLETETCHAlerting Connect Connectacknowledge Alerting Connect Connect acknowledge 呼叫接續(xù)信號流程 移動用戶呼叫移動用戶(主被叫 MS 在同一 MSC 中)(二)UmABDMSaBSSaMSCVLRHLRAUC() Disconnect Disconnect ReleaseAUmBSSbMSb Release() Release completeCLEAR COMMAND CLEAR COMPLETE Release CLEAR CLEAR MSC comple

15、te COMMMANDCOMPLETEDisconnect Disconnect Release ReleaseRelease complete Release completeCLEAR COMMAND CLEAR COMPLETE CLEAR COMMAND CLEAR COMPLETEMSC 呼叫接續(xù)流程 掛機(jī)過程TUP DUmPSTNGMSCAUCHLRVLRBVMSCABSSbMSbIAM(MSISDN)Send routing infomation(MSISDN, )Provide roaming numberroaming numberRouting information ac

16、k.IAM Send info for i/c (call setup)Page MS(LAI) COMPLETE L3 INFORMATIONPAGINGPage responseCON_CONFAUT_INFO_REQSend parameterProcess access req.AUT_INFO_PROV Authentication parameters.(IMSI,Kc,RAND,SRES)(IMSI,Kc,RAND,SRES)Authenticate( )Authentication request(RAND,CKSNn)Authentication response(SRES)

17、Authentication response( )呼叫接續(xù)信號流程 固定用戶呼叫移動用戶(一)TUP DUmPSTNGMSCAUCBAHLRVLRVMSCBSSbMSbSet cyphering mode Access request accepted Complete call( ) CIPHER MODE COMMAND) CIPHER MODE COMPLETE Setup Callconfirmed ASSIGN REQUEST ASSIGN COMPLETEACM AlertingTCHACMConnect Connect AcknowledgeANSANS 呼叫接續(xù)流程 固定用戶

18、呼叫移動用戶(二)PSTNTUPGMSCAUC HLRDVLRBVMSCABSSbUmMSb() CLFRLGCLF RLG Disconnect ReleaseRelease completeGMSC CLEAR COMMAND CLEAR COMPLETE () CBK CLFRLGCBKCLF RLG GMSC CLEAR COMMAND CLEAR COMPLETEDisconnect ReleaseRelease complete 呼叫接續(xù)信號流程 固定用戶呼叫移動用戶的掛機(jī)過程MSCAABSS1BSS2UmUmMSBSS1 MS HANDOVER REQUIRED( )HANDOV

19、ER REQUEST (PCM&Channel type)( L3 HANDOVER COMMAND HANDOVER REQUEST ACKNOWLEDGE New TCH ) HANDOVER COMMAND( Target channel HANDOVER COMMAND ) HANDOVER DETECT HANDOVER COMPLETE HANDOVER COMMAND BSS,MS( New TCH ) HANDOVER DETECT HANDOVER COMPLETEMS PCMCLEAR COMMAND CLEAR COMPLETE 切換控制流程 同 MSC 內(nèi)基站間切換MS

20、MSUmAEBBSS1MSCaMSCbVLRbAUm BSS2HANDOVER REQ.( )Perform handover(MAP) ( )( )HANDOVER REQUESTHANDOVER REQUEST ACKNOWLEDGE(PCM&Channel type)(New TCH )Allocation handover numberRadio channel ack.(MAP) ( New TCH HON.)IAMACMSend handover report (HON.) ( )HANDOVER COMMANDHANDOVER CMD BSSMS CLEAR COMMANDSen

21、d end signal(MAP) PCM0 HANDOVER DETECT HANDOVER COMPLETEBSS2 TCHPCMMS CLEAR COMPLETEANS (TUP/ISUP) MSCa MSCb End signal(MAP)Handover report 切換控制流程 基本切換處理MS MSCaEBSS2MSCbMSCbVLRbVLRbBSS2 HANDOVER REQUIRED ( ) Perform subsequent handover(MAP) ( , ,MSC ) Perform handoverHANDOVER REQUEST (PCM&Channel type