Call Flow _ Nokia
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1 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
Protocol messages
2 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGING
Paging Part
3 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMAND
Paging Part
4 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMANDPAGING_REQUES
T
Paging Part
PCH
5 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMANDPAGING_REQUES
T
CHANNEL_REQUEST
Paging Part
Radio Access Part
T3120 START
RACH
6 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMANDPAGING_REQUES
T
CHANNEL_REQUEST CHANNEL_REQUI
RED
Paging Part
Radio Access Part
7 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMANDPAGING_REQUES
T
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATION
Paging Part
Radio Access Part
8 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMANDPAGING_REQUES
T
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACK
Paging Part
Radio Access Part
9 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMANDPAGING_REQUES
T
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKIMMEDIATE_ASSIGNMENT_COMMAND
Paging Part
Radio Access Part
T3101 START
10 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMANDPAGING_REQUES
T
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKIMMEDIATE_ASSIGNMENT_COMMANDIMMEDIATE_ASSIGN
MENT
Paging Part
Radio Access Part
AGCH
11 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMANDPAGING_REQUES
T
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKIMMEDIATE_ASSIGNMENT_COMMANDIMMEDIATE_ASSIGN
MENT
Paging Part
Radio Access Part
T3120 STOP
12 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMANDPAGING_REQUES
T
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKIMMEDIATE_ASSIGNMENT_COMMANDIMMEDIATE_ASSIGN
MENT
SABM: PAGING_RESPONSE
Paging Part
Radio Access Part
Establishment Part
SDCCH
CNROCNTCCALLSCCONGS}
13 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMANDPAGING_REQUES
T
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKIMMEDIATE_ASSIGNMENT_COMMANDIMMEDIATE_ASSIGN
MENT
SABM: PAGING_RESPONSE ESTABLISH_INDICATI
ON
Paging Part
Radio Access Part
Establishment PartBSC establishesSCCP connection
14 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMANDPAGING_REQUES
T
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKIMMEDIATE_ASSIGNMENT_COMMANDIMMEDIATE_ASSIGN
MENT
SABM: PAGING_RESPONSE ESTABLISH_INDICATI
ON
Paging Part
Radio Access Part
Establishment Part
T3101 STOP
15 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMANDPAGING_REQUES
T
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKIMMEDIATE_ASSIGNMENT_COMMANDIMMEDIATE_ASSIGN
MENT
SABM: PAGING_RESPONSE ESTABLISH_INDICATI
ONUA
Paging Part
Radio Access Part
Establishment Part
16 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
PAGINGPAGING_COMMANDPAGING_REQUES
T
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKIMMEDIATE_ASSIGNMENT_COMMANDIMMEDIATE_ASSIGN
MENT
SABM: PAGING_RESPONSE ESTABLISH_INDICATI
ON PAGING_RESPONSEUA
Paging Part
Radio Access Part
Establishment Part
17 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
Paging Part
Radio Access Part
Establishment Part
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSE
18 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
Paging Part
Radio Access Part
Establishment Part
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSEIDENTIFICATION_REQUEST
IDENTIFICATION_REQUESTIDENTIFICATION_RESPONSE
IDENTIFICATION_RESPONSE
19 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
Paging Part
Radio Access Part
Establishment Part
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSEIDENTIFICATION_REQUEST
IDENTIFICATION_REQUESTIDENTIFICATION_RESPONSE
IDENTIFICATION_RESPONSECIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
20 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
Paging Part
Radio Access Part
Establishment Part
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSEIDENTIFICATION_REQUEST
IDENTIFICATION_REQUESTIDENTIFICATION_RESPONSE
IDENTIFICATION_RESPONSECIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE
CIPHERING_MODE_COMPLETE
21 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSEIDENTIFICATION_REQUEST
IDENTIFICATION_REQUESTIDENTIFICATION_RESPONSE
IDENTIFICATION_RESPONSECIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE
CIPHERING_MODE_COMPLETE
SETUP
SETUP
22 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSEIDENTIFICATION_REQUEST
IDENTIFICATION_REQUESTIDENTIFICATION_RESPONSE
IDENTIFICATION_RESPONSECIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE
CIPHERING_MODE_COMPLETE
SETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
23 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSEIDENTIFICATION_REQUEST
IDENTIFICATION_REQUESTIDENTIFICATION_RESPONSE
IDENTIFICATION_RESPONSECIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE
CIPHERING_MODE_COMPLETE
SETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUEST
BSC reservesTTCH on A-Itf.
24 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSEIDENTIFICATION_REQUEST
IDENTIFICATION_REQUESTIDENTIFICATION_RESPONSE
IDENTIFICATION_RESPONSECIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE
CIPHERING_MODE_COMPLETE
SETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUESTPHYSICAL_CONTEXT_RE
QUESTPHYSICAL_CONTEXT_CONFIRM
25 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSEIDENTIFICATION_REQUEST
IDENTIFICATION_REQUESTIDENTIFICATION_RESPONSE
IDENTIFICATION_RESPONSECIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE
CIPHERING_MODE_COMPLETE
SETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUESTPHYSICAL_CONTEXT_RE
QUESTPHYSICAL_CONTEXT_CONFIRM
CHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKNOWLEDGE
26 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated CallSETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUESTPHYSICAL_CONTEXT_RE
QUESTPHYSICAL_CONTEXT_CONFIRM
CHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKNOWLEDGE
ASSIGNMENT_COMMAND
27 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated CallSETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUESTPHYSICAL_CONTEXT_RE
QUESTPHYSICAL_CONTEXT_CONFIRM
CHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKNOWLEDGE
ASSIGNMENT_COMMAND
TCH seizedSABM
ESTABLISH_INDICATION
UA
BSC connectsAbis- to A-Itf.
28 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated CallSETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUESTPHYSICAL_CONTEXT_RE
QUESTPHYSICAL_CONTEXT_CONFIRM
CHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKNOWLEDGE
ASSIGNMENT_COMMAND
TCH seizedSABM
ESTABLISH_INDICATION
UA
ASSIGNMENT_COMPLETE
ASSIGNMENT_COMPLETE
29 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated CallSETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUESTPHYSICAL_CONTEXT_RE
QUESTPHYSICAL_CONTEXT_CONFIRM
CHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKNOWLEDGE
ASSIGNMENT_COMMAND
TCH seizedSABM
ESTABLISH_INDICATION
UA
ASSIGNMENT_COMPLETE
ASSIGNMENT_COMPLETE
RF_CHANNEL_RELEASE
RF_CH_RELEASE_ACK
30 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
TCH seizedSABM
ESTABLISH_INDICATION
UA
ASSIGNMENT_COMPLETE
ASSIGNMENT_COMPLETE
RF_CHANNEL_RELEASE
RF_CH_RELEASE_ACK
ALERT ALERT
31 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
TCH seizedSABM
ESTABLISH_INDICATION
UA
ASSIGNMENT_COMPLETE
ASSIGNMENT_COMPLETE
RF_CHANNEL_RELEASE
RF_CH_RELEASE_ACK
ALERT ALERT
CONNECT CONNECT
CONNECT _ACKNOWLEDGE
CONNECT_ACKNOWLEDGE
32 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
TCH seizedSABM
ESTABLISH_INDICATION
UA
ASSIGNMENT_COMPLETE
ASSIGNMENT_COMPLETE
RF_CHANNEL_RELEASE
RF_CH_RELEASE_ACK
ALERT ALERT
CONNECT CONNECT
CONNECT _ACKNOWLEDGE
CONNECT_ACKNOWLEDGE
Conversation phase
33 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
TCH seized
Conversation phase
Call release (by MS)DISCONNECT DISCONNECT
34 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
TCH seized
Conversation phase
Call release (by MS)DISCONNECT DISCONNECT
RELEASE RELEASE
RELEASE_COMPLETE
RELEASE_COMPLETE
35 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
TCH seized
Conversation phase
Call release (by MS)DISCONNECT DISCONNECT
RELEASE RELEASE
RELEASE_COMPLETE
RELEASE_COMPLETE
CLEAR_COMMAND
CLEAR_COMPLETE
BSC releasesA-Itf. circuit
36 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
TCH seized
Conversation phase
Call release (by MS)DISCONNECT DISCONNECT
RELEASE RELEASE
RELEASE_COMPLETE
RELEASE_COMPLETE
CLEAR_COMMAND
CLEAR_COMPLETECHANNEL_RELEASE
DEACTIVATE_SACCH
37 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
TCH seized
Conversation phase
Call release (by MS)DISCONNECT DISCONNECT
RELEASE RELEASE
RELEASE_COMPLETE
RELEASE_COMPLETE
CLEAR_COMMAND
CLEAR_COMPLETECHANNEL_RELEASE
DEACTIVATE_SACCH
DISC
UARELEASE_INDICATION
UA
MS listens toBCCH again
38 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
TCH seized
Conversation phase
Call release (by MS)DISCONNECT DISCONNECT
RELEASE RELEASE
RELEASE_COMPLETE
RELEASE_COMPLETE
CLEAR_COMMAND
CLEAR_COMPLETECHANNEL_RELEASE
DEACTIVATE_SACCH
DISC
UARELEASE_INDICATION
UARF_CHANNEL_RELEASE
RF_CH_RELEASE_ACK
39 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Terminated Call
TCH seized
Conversation phase
Call release (by MS)DISCONNECT DISCONNECT
RELEASE RELEASE
RELEASE_COMPLETE
RELEASE_COMPLETE
CLEAR_COMMAND
CLEAR_COMPLETECHANNEL_RELEASE
DEACTIVATE_SACCH
DISC
UARELEASE_INDICATION
UARF_CHANNEL_RELEASE
RF_CH_RELEASE_ACKSCCP_RELEASED
SCCP_RELEASED_ACK
BSC releasesSCCP connection
40 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
Protocol messages
41 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
CHANNEL_REQUEST CHANNEL_REQUI
RED
Radio Access Part
42 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACK
Radio Access Part
43 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKIMMEDIATE_ASSIGNMENT_COMMANDIMMEDIATE_ASSIGN
MENT
Radio Access Part
44 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKIMMEDIATE_ASSIGNMENT_COMMANDIMMEDIATE_ASSIGN
MENT
SABMESTABLISH_INDICATION
Radio Access Part
Establishment PartBSC establishesSCCP connection
45 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
CHANNEL_REQUEST CHANNEL_REQUI
REDCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKIMMEDIATE_ASSIGNMENT_COMMANDIMMEDIATE_ASSIGN
MENT
SABMESTABLISH_INDICATION CM_SERVICE_REQUES
T
UA
Radio Access Part
Establishment Part
46 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
Radio Access Part
Establishment Part
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSE
47 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
Radio Access Part
Establishment Part
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSECIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
48 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
Radio Access Part
Establishment Part
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSECIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE
CIPHERING_MODE_COMPLETE
49 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
Radio Access Part
Establishment Part
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSECIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE
CIPHERING_MODE_COMPLETETMSI_REALLOCATION_COMMAND
TMSI_REALLOCATION_COMMANDTMSI_REALLOCATION_COMPLETE
TMSI_REALLOCATION_COMPLETE
50 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSE
SETUP
SETUP
CIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE
CIPHERING_MODE_COMPLETETMSI_REALLOCATION_COMMAND
TMSI_REALLOCATION_COMMANDTMSI_REALLOCATION_COMPLETE
TMSI_REALLOCATION_COMPLETE
51 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSE
SETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
CIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE
CIPHERING_MODE_COMPLETETMSI_REALLOCATION_COMMAND
TMSI_REALLOCATION_COMMANDTMSI_REALLOCATION_COMPLETE
TMSI_REALLOCATION_COMPLETE
52 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSE
SETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUEST
CIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE
CIPHERING_MODE_COMPLETETMSI_REALLOCATION_COMMAND
TMSI_REALLOCATION_COMMANDTMSI_REALLOCATION_COMPLETE
TMSI_REALLOCATION_COMPLETE
BSC reservesTTCH on A-Itf.
53 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSE
SETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUESTPHYSICAL_CONTEXT_RE
QUESTPHYSICAL_CONTEXT_CONFIRM
CIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE
CIPHERING_MODE_COMPLETETMSI_REALLOCATION_COMMAND
TMSI_REALLOCATION_COMMANDTMSI_REALLOCATION_COMPLETE
TMSI_REALLOCATION_COMPLETE
54 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
SDCCH Signalling PartAUTHENTICATION_REQUEST
AUTHENTICATION_REQUESTAUTHENTICATION_RESPONSE
AUTHENTICATION_RESPONSE
SETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUESTPHYSICAL_CONTEXT_RE
QUESTPHYSICAL_CONTEXT_CONFIRM
CHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKNOWLEDGE
CIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE
CIPHERING_MODE_COMPLETETMSI_REALLOCATION_COMMAND
TMSI_REALLOCATION_COMMANDTMSI_REALLOCATION_COMPLETE
TMSI_REALLOCATION_COMPLETE
55 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated CallSETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUESTPHYSICAL_CONTEXT_RE
QUESTPHYSICAL_CONTEXT_CONFIRM
CHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKNOWLEDGE
ASSIGNMENT_COMMAND
56 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated CallSETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUESTPHYSICAL_CONTEXT_RE
QUESTPHYSICAL_CONTEXT_CONFIRM
CHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKNOWLEDGE
ASSIGNMENT_COMMAND
TCH seizedSABM
ESTABLISH_INDICATION
UA
BSC connectsAbis- to A-Itf.
57 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated CallSETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUESTPHYSICAL_CONTEXT_RE
QUESTPHYSICAL_CONTEXT_CONFIRM
CHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKNOWLEDGE
ASSIGNMENT_COMMAND
TCH seizedSABM
ESTABLISH_INDICATION
UA
ASSIGNMENT_COMPLETE
ASSIGNMENT_COMPLETE
58 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated CallSETUP
SETUP
CALL_PROCEEDING
CALL_PROCEEDING
ASSIGNMENT_REQUESTPHYSICAL_CONTEXT_RE
QUESTPHYSICAL_CONTEXT_CONFIRM
CHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACKNOWLEDGE
ASSIGNMENT_COMMAND
TCH seizedSABM
ESTABLISH_INDICATION
UA
ASSIGNMENT_COMPLETE
ASSIGNMENT_COMPLETE
RF_CHANNEL_RELEASE
RF_CH_RELEASE_ACK
59 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
TCH seizedSABM
ESTABLISH_INDICATION
UA
ASSIGNMENT_COMPLETE
ASSIGNMENT_COMPLETE
RF_CHANNEL_RELEASE
RF_CH_RELEASE_ACK
ALERT ALERT
60 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
TCH seizedSABM
ESTABLISH_INDICATION
UA
ASSIGNMENT_COMPLETE
ASSIGNMENT_COMPLETE
RF_CHANNEL_RELEASE
RF_CH_RELEASE_ACK
ALERT ALERT
CONNECT CONNECT
CONNECT _ACKNOWLEDGE
CONNECT_ACKNOWLEDGE
61 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
TCH seizedSABM
ESTABLISH_INDICATION
UA
ASSIGNMENT_COMPLETE
ASSIGNMENT_COMPLETE
RF_CHANNEL_RELEASE
RF_CH_RELEASE_ACK
ALERT ALERT
CONNECT CONNECT
CONNECT _ACKNOWLEDGE
CONNECT_ACKNOWLEDGE
Conversation phase
62 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Mobile Originated Call
TCH seizedSABM
ESTABLISH_INDICATION
UA
ASSIGNMENT_COMPLETE
ASSIGNMENT_COMPLETE
RF_CHANNEL_RELEASE
RF_CH_RELEASE_ACK
ALERT ALERT
CONNECT CONNECT
CONNECT _ACKNOWLEDGE
CONNECT_ACKNOWLEDGE
Conversation phase
Call release (by MS)
63 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Handover
Protocol messages
64 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Handover
targetBTS
MeasurementsMEASUREMENT_REPORT
MEASUREMENT_RESULT
65 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Handover
targetBTS
MeasurementsMEASUREMENT_REPORT
MEASUREMENT_RESULT
TCH activation and reservation in target BTSCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACK
66 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Handover
targetBTS
MeasurementsMEASUREMENT_REPORT
MEASUREMENT_RESULT
TCH activation and reservation in target BTSCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACK
Signalling on FACCHHO_COMMANDHO_COMMAND
FACCH
67 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Handover
targetBTS
MeasurementsMEASUREMENT_REPORT
MEASUREMENT_RESULT
TCH activation and reservation in target BTSCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACK
Signalling on FACCHHO_COMMANDHO_COMMAND
HO_ACCESS
HO_DETECT
68 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Handover
targetBTS
MeasurementsMEASUREMENT_REPORT
MEASUREMENT_RESULT
TCH activation and reservation in target BTSCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACK
Signalling on FACCHHO_COMMANDHO_COMMAND
HO_ACCESS
HO_DETECT
PHYSICAL_INFO
69 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Handover
targetBTS
MeasurementsMEASUREMENT_REPORT
MEASUREMENT_RESULT
TCH activation and reservation in target BTSCHANNEL_ACTIVATIONCHANNEL_ACTIVATION_ACK
Signalling on FACCHHO_COMMANDHO_COMMAND
HO_ACCESS
HO_DETECT
PHYSICAL_INFO
SABM
UAESTABLISH_INDICATION
70 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Handover
targetBTS
Signalling on FACCHHO_COMMANDHO_COMMAND
HO_ACCESS
HO_DETECT
PHYSICAL_INFO
SABM
UAESTABLISH_INDICATION
HO_COMPLETE HO_COMPLETE HO_PERFORMED
RR
71 © NOKIA 1999 FILENAMs.PPT/ DATE / NN
MS
BTS
BSC
MSC
Handover
targetBTS
Signalling on FACCHHO_COMMANDHO_COMMAND
HO_ACCESS
HO_DETECT
PHYSICAL_INFO
SABM
UAESTABLISH_INDICATION
HO_COMPLETE HO_COMPLETE HO_PERFORMED
RR
TCH release in old BTSRF_CHANNEL_RELEASERF_CH_RELEASE_ACK
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