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1、,channel request,MS,BTS,BSC,MSC,VLR,channel request,MS,BTS,BSC,MSC,VLR,establishment cause answer for paging (MTC) emergency call call re-establishment user request (MOC, SMS, suppl.service) other serives (loc. update, IMSI detach) random number,channel request,MS,BTS,BSC,MSC,VLR,channel required,ch

2、annel request,MS,BTS,BSC,MSC,VLR,channel required,BSC starts searching for a SDCCH channel - channel available - reservation - no channel available - blocking,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,BSC starts searching for a SDCCH channel

3、- channel available - reservation - no channel available - blocking,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activ

4、ation,channel act. ackn.,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activati

5、on,channel act. ackn.,immediate assignment,information included page mode timing advance channel description timeslotsubchanneltraining sequence codeRF channel number timer 3101 started in the BSC,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,cha

6、nnel activation,channel act. ackn.,immediate assignment,SDCCH assign.,information included page mode timing advance channel description timeslotsubchanneltraining sequence codeRF channel number timer 3101 started in the BSC,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH bu

7、sy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate

8、 assignment,ESTABLISHMENT PART,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCC

9、H seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,required service mobile originated call/SMS mobile terminated call/SMS location update call re-establishment IMSI detach request timer 3101 sta

10、rted in the mobile,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,channel request,MS,BTS,BSC,MSC,VLR,channel requ

11、ired,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,timer 3101 stopped in the BSC,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att.

12、 Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,timer 3101 stopped in the

13、BSC,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Suc

14、c. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,SDCCH assign.,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,immediate assignment,CM service request,establish indication,

15、Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,SDCCH assign.,BSC starts to initiate signalling connection control part (SCCP) connection,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att.

16、SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service

17、request,UA,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est.

18、SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,timer 3101 stopped in the mobile,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,imme

19、diate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH b

20、usy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request

21、,UA,process access request,CYPHERING & ENCRYPTION PART,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz.

22、 Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,authenticate request,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,cha

23、nnel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,authenticate request

24、,authentication request,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH

25、call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,authenticate request,authentication request,authentication request,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel

26、 activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,authe

27、nticate request,authentication request,authentication request,A3,SRES,RAND,Ki (first 8 bits),channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service re

28、quest,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,authenticate request,authentication request,authentication request,authentication response,channel reques

29、t,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. S

30、MS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,authenticate request,authentication request,authentication request,authentication response,authentication response,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Re

31、s.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access req

32、uest,authenticate request,authentication request,authentication request,authentication response,authentication response,authentication response,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignme

33、nt,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,authenticate request,authentication request,authentica

34、tion request,authentication response,authentication response,authentication response,set ciphering mode,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM

35、 service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,authenticate request,authentication request,authentication request,authentication response,aut

36、hentication response,authentication response,set ciphering mode,ciphering mode command,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,

37、establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,authenticate request,authentication request,authentication request,authentication response,authentication respo

38、nse,authentication response,set ciphering mode,ciphering mode command,encryption command,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service reques

39、t,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,authenticate request,authentication request,authentication request,authentication response,authentication res

40、ponse,authentication response,set ciphering mode,ciphering mode command,encryption command,ciphering mode command,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate ass

41、ignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,authenticate request,authentication request,authentication request,authentication re

42、sponse,authentication response,authentication response,set ciphering mode,ciphering mode command,encryption command,ciphering mode command,A8,ciphering key (Kc),RAND,Ki,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act.

43、 ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,authenticate request,authenti

44、cation request,authentication request,authentication response,authentication response,authentication response,set ciphering mode,ciphering mode command,encryption command,ciphering mode command,ciphering mode complete,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att

45、. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,pro

46、cess access request,authenticate request,authentication request,authentication request,authentication response,authentication response,authentication response,set ciphering mode,ciphering mode command,encryption command,ciphering mode command,ciphering mode complete,ciphering mode complete,channel r

47、equest,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,immediate assignment,CM service request,establish indication,Succ. Seiz. Orig. Succ. Seiz. Term. SDCCH call re est. SDCCH emerg. call Su

48、cc. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,authenticate request,authentication request,authentication request,authentication response,authentication response,authentication response,set ciphering mode,ciphering mode command,encryption command,cipheri

49、ng mode command,ciphering mode complete,ciphering mode complete,access request accepted,MS,BTS,BSC,MSC,VLR,forward new TMSI,MS,BTS,BSC,MSC,VLR,forward new TMSI,TMSI realloc. command,combintation of new TMSI and LAI combintation of IMSI and LAI,MS,BTS,BSC,MSC,VLR,forward new TMSI,TMSI realloc. comman

50、d,TMSI reallocation com.,MS,BTS,BSC,MSC,VLR,forward new TMSI,TMSI realloc. command,TMSI reallocation com.,TMSI reallocation complete,MS,BTS,BSC,MSC,VLR,forward new TMSI,TMSI realloc. command,TMSI reallocation com.,TMSI reallocation complete,TMSI realloc. complete,MS,BTS,BSC,MSC,VLR,forward new TMSI,

51、TMSI realloc. command,TMSI reallocation com.,TMSI reallocation complete,TMSI realloc. complete,TMSI ackn.,MS,BTS,BSC,MSC,VLR,forward new TMSI,TMSI realloc. command,TMSI reallocation com.,TMSI reallocation complete,TMSI realloc. complete,TMSI ackn.,setup (SDCCH),MS,BTS,BSC,MSC,VLR,forward new TMSI,TM

52、SI realloc. command,TMSI reallocation com.,TMSI reallocation complete,TMSI realloc. complete,TMSI ackn.,setup (SDCCH),number of the called subscriber type of call (speech/data),MS,BTS,BSC,MSC,VLR,forward new TMSI,TMSI realloc. command,TMSI reallocation com.,TMSI reallocation complete,TMSI realloc. c

53、omplete,TMSI ackn.,setup (SDCCH),setup,MS,BTS,BSC,MSC,VLR,forward new TMSI,TMSI realloc. command,TMSI reallocation com.,TMSI reallocation complete,TMSI realloc. complete,TMSI ackn.,setup (SDCCH),setup,send info for outg. call,MS,BTS,BSC,MSC,VLR,forward new TMSI,TMSI realloc. command,TMSI reallocatio

54、n com.,TMSI reallocation complete,TMSI realloc. complete,TMSI ackn.,setup (SDCCH),setup,send info for outg. call,complete call,MS,BTS,BSC,MSC,VLR,forward new TMSI,TMSI realloc. command,TMSI reallocation com.,TMSI reallocation complete,TMSI realloc. complete,TMSI ackn.,setup (SDCCH),setup,send info f

55、or outg. call,complete call,call proceeding,MS,BTS,BSC,MSC,VLR,forward new TMSI,TMSI realloc. command,TMSI reallocation com.,TMSI reallocation complete,TMSI realloc. complete,TMSI ackn.,setup (SDCCH),setup,send info for outg. call,complete call,call proceeding,call proceeding,MS,BTS,BSC,MSC,VLR,forw

56、ard new TMSI,TMSI realloc. command,TMSI reallocation com.,TMSI reallocation complete,TMSI realloc. complete,TMSI ackn.,setup (SDCCH),setup,send info for outg. call,complete call,call proceeding,call proceeding,assignment request,MS,BTS,BSC,MSC,VLR,forward new TMSI,TMSI realloc. command,TMSI reallocation com.,TMSI reallocation complete,TMSI realloc. complete,TMSI ackn.,setup (SDCCH),setup,send info for outg. call,complete call,call proceeding,call proceeding,assignment request,command from MSC to BSC to activ

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