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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 timeslot subchannel training sequence code RF 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.,
6、channel activation,channel act. ackn.,immediate assignment,SDCCH assign.,information included page mode timing advance channel description timeslot subchannel training sequence code RF channel number timer 3101 started in the BSC,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SD
7、CCH busy 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.,imm
8、ediate 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 require
9、d,SDCCH 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 31
10、01 started 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,channe
11、l 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,timer 3101 stopped in the BSC,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH bus
12、y 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,timer 3101 stopped i
13、n the 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. ca
14、ll Succ. 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 indic
15、ation,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
16、 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. SMS est. Unsucc. SMS est. SDCCH loc. update,CM se
17、rvice 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
18、 est. 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
19、.,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,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. S
20、DCCH 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 r
21、equest,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.
22、 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,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,channel activati
23、on,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,authenticate r
24、equest,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.
25、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,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost CCCH Res.,c
26、hannel 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
27、,authenticate 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 serv
28、ice 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,channel
29、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. SDCCH emerg. call S
30、ucc. 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,channel request,MS,BTS,BSC,MSC,VLR,channel required,SDCCH seiz att. SDCCH busy att. Ghost C
31、CCH 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,process acce
32、ss request,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 as
33、signment,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,auth
34、entication 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 assignm
35、ent,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 respon
36、se,authentication 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 re
37、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,authentication
38、 response,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
39、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,authenticati
40、on response,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.,immedia
41、te 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,authentication request,authenticat
42、ion response,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,channe
43、l 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,au
44、thentication 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 bu
45、sy 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,
46、UA,process 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,cha
47、nnel 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. SDCCH emerg. call Succ. SMS est. Unsucc. SMS est. SDCCH loc. update,CM service request,UA,process access request,auth