June 9, 2005 Confidential1 Alexander Seifarth
UTRAN Example Call Flows
Layer 3 Call Flows UTRAN
Alexander Seifarth © 2005
June 9, 2005 Confidential2 Alexander Seifarth
1. CS Mobility Handling
June 9, 2005 Confidential3 Alexander Seifarth
1. CS Mobility Handling
1.1. Normal Location Area Update in state CELL_DCH
June 9, 2005 Confidential4 Alexander Seifarth
1.1 Location Area Update on CELL_DCH (1)
MSCRNCNode BUE
RRC Connection RequestRRC (RACH)
Radio Link Setup RequestNBAP
Radio Link Setup ResponseNBAP
Establishment RequestALCAPEstablishment ConfirmALCAP
RRC Connection SetupRRC (FACH)
RRC Connection Setup CompleteRRC (DCH)
Radio Link Restore IndicationNBAP
June 9, 2005 Confidential5 Alexander Seifarth
1.1 Location Area Update on CELL_DCH (2)
MSCRNCNode BUE
Initial Direct TransferRRC (DCH)
Downlink Direct TransferRRC (DCH)
-- MM-message: Location Updating Request Initial UE MessageRANAP
-- MM-msg.: Location Updating Request
-- MM-message: Authentication Request
Direct TransferRANAP
-- MM-msg.: Authentication Req.
Uplink Direct TransferRRC (DCH)
-- MM-message: Authentication Response Direct TransferRANAP
-- MM-msg.: Authentication Resp.
Security Mode CMDRANAP
Security Mode COMRANAP
Security Mode CommandRRC (DCH)
Security Mode CompleteRRC (DCH)
June 9, 2005 Confidential6 Alexander Seifarth
1.1 Location Area Update on CELL_DCH (3)
MSCRNCNode BUE
Downlink Direct TransferRRC (DCH)
-- MM-message: Location Updating Accept
Direct TransferRANAP
-- MM-msg.: Location UpdatingAccept
Uplink Direct TransferRRC (DCH)
-- MM-message: TMSI Reallocation Complete Direct TransferRANAP
-- MM-msg.: TMSI Realloc. COM
Iu Release CMDRANAP
Iu Release COMRANAPRRC Connection ReleaseRRC (DCH)
RRC Connection Release CompleteRRC (DCH)
Radio Link Deletion RequestNBAP
Radio Link Deletion ResponseNBAP
Release RequestALCAPRelease ConfirmALCAP
June 9, 2005 Confidential7 Alexander Seifarth
1. CS Mobility Handling
1.2 Normal Location Area Update in state CELL_FACH
June 9, 2005 Confidential8 Alexander Seifarth
1.2 Location Area Update in CELL_FACH (1)
MSCRNCNode BUE
RRC Connection RequestRRC (RACH)
RRC Connection SetupRRC (FACH)
RRC Connection Setup CompleteRRC (RACH)
Initial Direct TransferRRC (RACH)
Downlink Direct TransferRRC (FACH)
-- MM-message: Location Updating RequestInitial UE MessageRANAP
-- MM-msg.: Location Updating Request
-- MM-message: Authentication Request
Direct TransferRANAP
-- MM-msg.: Authentication Req.
Uplink Direct TransferRRC (RACH)
-- MM-message: Authentication ResponseDirect TransferRANAP
-- MM-msg.: Authentication Resp.
Security Mode CMDRANAP
Security Mode COMRANAP
Security Mode CommandRRC (FACH)
Security Mode CompleteRRC (RACH)
June 9, 2005 Confidential9 Alexander Seifarth
1.2 Location Area Update in CELL_FACH (2)
MSCRNCNode BUE
Downlink Direct TransferRRC (FACH)
-- MM-message: Location Updating Accept
Direct TransferRANAP
-- MM-msg.: Location UpdatingAccept
Uplink Direct TransferRRC (RACH)
-- MM-message: TMSI Reallocation Complete Direct TransferRANAP
-- MM-msg.: TMSI Realloc. COM
Iu Release CMDRANAP
Iu Release COMRANAPRRC Connection ReleaseRRC (FACH)
RRC Connection Release CompleteRRC (RACH)
June 9, 2005 Confidential10 Alexander Seifarth
1. CS Mobility Handling
1.3 IMSI Detach in CELL_DCH
June 9, 2005 Confidential11 Alexander Seifarth
1.3 IMSI Detach in CELL_DCH (1)
MSCRNCNode BUE
RRC Connection RequestRRC (RACH)
Radio Link Setup RequestNBAP
Radio Link Setup ResponseNBAP
Establishment RequestALCAPEstablishment ConfirmALCAP
RRC Connection SetupRRC (FACH)
RRC Connection Setup CompleteRRC (DCH)
Radio Link Restore IndicationNBAP
June 9, 2005 Confidential12 Alexander Seifarth
1.3 IMSI Detach in CELL_DCH (2)
MSCRNCNode BUE
Initial Direct TransferRRC (DCH)
-- MM-message: IMSI Detach Indication Initial UE MessageRANAP
-- MM-msg.: IMSI Detach Indication
Connection RefusedSCCP
RRC Connection ReleaseRRC (DCH)
RRC Connection Release CompleteRRC (DCH)
Radio Link Deletion RequestNBAP
Radio Link Deletion ResponseNBAP
Release RequestALCAPRelease ConfirmALCAP
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2. CS Call
2.1 MOC started in IDLE mode
June 9, 2005 Confidential14 Alexander Seifarth
2.1. MOC started in IDLE mode (1)
MSCRNCNode BUE
RRC Connection RequestRRC (RACH)
Radio Link Setup RequestNBAP
Radio Link Setup ResponseNBAP
Establishment RequestALCAPEstablishment ConfirmALCAP
RRC Connection SetupRRC (FACH)
RRC Connection Setup CompleteRRC (DCH)
Radio Link Restore IndicationNBAP
June 9, 2005 Confidential15 Alexander Seifarth
2.1. MOC started in IDLE mode (2)
MSCRNCNode BUE
Initial Direct TransferRRC (DCH)
Downlink Direct TransferRRC (DCH)
-- MM-message: CM Service Request Initial UE MessageRANAP
-- MM-msg.: CM Service Request
-- MM-message: Authentication Request
Direct TransferRANAP
-- MM-msg.: Authentication Req.
Uplink Direct TransferRRC (DCH)
-- MM-message: Authentication Response Direct TransferRANAP
-- MM-msg.: Authentication Resp.
Security Mode CMDRANAP
Security Mode COMRANAP
Security Mode CommandRRC (DCH)
Security Mode CompleteRRC (DCH)
June 9, 2005 Confidential16 Alexander Seifarth
2.1. MOC started in IDLE mode (3)
MSCRNCNode BUE
Downlink Direct TransferRRC (DCH)
-- CC-message: Call Proceeding
Direct TransferRANAP
-- CC-msg.: Call Proceeding
Uplink Direct TransferRRC (DCH)
-- CC-message: Setup Direct TransferRANAP
-- CC-msg.: Setup
RAB AssignmentRequestRANAP
Radio Link Reconfiguration PrepareNBAP
Radio Link Reconf. ReadyNBAP
Establishment RequestALCAPEstablishment ConfirmALCAP
Radio Link Reconf. CommitNBAP
Radio Bearer SetupRRC (DCH)
Radio Bearer Setup CompleteRRC (DCH)
ALCAP
Establishment ConfirmALCAP
Establishment Request
RAB AssignmentResponseRANAP
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2.1. MOC started in IDLE mode (4)
MSCRNCNode BUE
Downlink Direct TransferRRC (DCH)
-- CC-message: Alerting
Direct TransferRANAP
-- CC-msg.: Alerting
Uplink Direct TransferRRC (DCH)
-- CC-message: Connect Acknowledge Direct TransferRANAP
-- CC-msg.: Connect Acknowledge
Downlink Direct TransferRRC (DCH)
-- CC-message: Connect
Direct TransferRANAP
-- CC-msg.: Connect
call active
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2. CS Call
2.2 Mobile Terminated Call for IDLE mode UE
June 9, 2005 Confidential19 Alexander Seifarth
2.2 MTC for IDLE mode UE (1)
MSCRNCNode BUE
RRC Connection RequestRRC (RACH)
Radio Link Setup RequestNBAP
Radio Link Setup ResponseNBAP
Establishment RequestALCAPEstablishment ConfirmALCAP
RRC Connection SetupRRC (FACH)
RRC Connection Setup CompleteRRC (DCH)
Radio Link Restore IndicationNBAP
Paging Type 1RRC (PCH)PagingRANAP
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2.2 MTC for IDLE mode UE (2)
MSCRNCNode BUE
Initial Direct TransferRRC (DCH)
Downlink Direct TransferRRC (DCH)
-- RR-message: Paging Response Initial UE MessageRANAP
-- RR-msg.: Paging Response
-- MM-message: Authentication Request
Direct TransferRANAP
-- MM-msg.: Authentication Req.
Uplink Direct TransferRRC (DCH)
-- MM-message: Authentication Response Direct TransferRANAP
-- MM-msg.: Authentication Resp.
Security Mode CMDRANAP
Security Mode COMRANAP
Security Mode CommandRRC (DCH)
Security Mode CompleteRRC (DCH)
June 9, 2005 Confidential21 Alexander Seifarth
2.2 MTC for IDLE mode UE (2)
MSCRNCNode BUE
Upink Direct TransferRRC (DCH)
-- CC-message: Call ConfirmedDirect TransferRANAP
-- CC-msg.: Call Confirmed
Downlink Direct TransferRRC (DCH)
-- CC-message: Setup
Direct TransferRANAP
-- CC-msg.: Setup
RAB AssignmentRequestRANAP
Radio Link Reconfiguration PrepareNBAP
Radio Link Reconf. ReadyNBAP
Establishment RequestALCAPEstablishment ConfirmALCAP
Radio Link Reconf. CommitNBAP
Radio Bearer SetupRRC (DCH)
Radio Bearer Setup CompleteRRC (DCH)
ALCAP
Establishment ConfirmALCAP
Establishment Request
RAB AssignmentResponseRANAP
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2.2 MTC for IDLE mode UE (3)
MSCRNCNode BUE
Uplink Direct TransferRRC (DCH)
-- CC-message: AlertingDirect TransferRANAP
-- CC-msg.: Alerting
Downlink Direct TransferRRC (DCH)
-- CC-message: Connect Acknowledge
Direct TransferRANAP
-- CC-msg.: Connect Acknowledge
Uplink Direct TransferRRC (DCH)
-- CC-message: ConnectDirect TransferRANAP
-- CC-msg.: Connect
call active
June 9, 2005 Confidential23 Alexander Seifarth
3. PS Mobility Management
June 9, 2005 Confidential24 Alexander Seifarth
3. PS Mobility Management
3.1 GPRS Attach in CELL_FACH
June 9, 2005 Confidential25 Alexander Seifarth
3.1. GPRS Attach in CELL_FACH (1)
SGSNRNCNode BUE
RRC Connection RequestRRC (RACH)
RRC Connection SetupRRC (FACH)
RRC Connection Setup CompleteRRC (RACH)
Initial Direct TransferRRC (RACH)
Downlink Direct TransferRRC (FACH)
-- GMM-message: Attach RequestInitial UE MessageRANAP
-- GMM-msg.: Attach Request
-- GMM-message: Authentication and Ciphering Request
Direct TransferRANAP
-- GMM-msg.: Authentication AndCiphering Req.
Uplink Direct TransferRRC (RACH)
-- GMM-message: Authentication And Ciphering ResponseDirect TransferRANAP
-- GMM-msg.: Authentication AndCiphering Resp.
Security Mode CMDRANAP
Security Mode COMRANAP
Security Mode CommandRRC (FACH)
Security Mode CompleteRRC (RACH)
June 9, 2005 Confidential26 Alexander Seifarth
3.1. GPRS Attach in CELL_FACH (2)
SGSNRNCNode BUE
Downlink Direct TransferRRC (FACH)
-- GMM-message: Attach Accept
Direct TransferRANAP
-- GMM-msg.: Attach Accept
Uplink Direct TransferRRC (RACH)
-- GMM-message: Attach Complete Direct TransferRANAP
-- GMM-msg.: Attach Complete
Iu Release CMDRANAP
Iu Release COMRANAPRRC Connection ReleaseRRC (DCH)
RRC Connection Release CompleteRRC (DCH)
June 9, 2005 Confidential27 Alexander Seifarth
3. PS Mobility Management
3.2 GPRS Detach while UE already connected in CELL_DCH for CS services
June 9, 2005 Confidential28 Alexander Seifarth
3.2 GPRS Detach - UE already in CELL_DCH (1)
SGSNRNCNode BUE
Initial Direct TransferRRC (DCH)
Downlink Direct TransferRRC (DCH)
-- GMM-message: Detach Request Initial UE MessageRANAP
-- GMM-msg.: Detach Request
-- GMM-message: Detach Accept
Direct TransferRANAP
-- GMM-msg.: Detach Accept
Security Mode CMDRANAP
Security Mode COMRANAP
Security Mode CommandRRC (DCH)
Security Mode CompleteRRC (DCH)
Iu Release CMDRANAP
Iu Release COMRANAPSignalling Connection ReleaseRRC (DCH)
June 9, 2005 Confidential29 Alexander Seifarth
3. PS Mobility Management
3.3 Routing Area Update in CELL_DCH
June 9, 2005 Confidential30 Alexander Seifarth
3.3 Routing Area Update in CELL_DCH (1)
SGSNRNCNode BUE
RRC Connection RequestRRC (RACH)
Radio Link Setup RequestNBAP
Radio Link Setup ResponseNBAP
Establishment RequestALCAPEstablishment ConfirmALCAP
RRC Connection SetupRRC (FACH)
RRC Connection Setup CompleteRRC (DCH)
Radio Link Restore IndicationNBAP
June 9, 2005 Confidential31 Alexander Seifarth
3.3 Routing Area Update in CELL_DCH (2)
SGSNRNCNode BUE
Initial Direct TransferRRC (DCH)
Downlink Direct TransferRRC (DCH)
-- GMM-message: Routing Area Update Request Initial UE MessageRANAP
-- GMM-msg.: Routing Area Update Request
-- GMM-message: Authentication And Ciphering Request
Direct TransferRANAP
-- GMM-msg.: Authentication AndCiphering Req.
Uplink Direct TransferRRC (DCH)
-- GMM-message: Authentication And Ciphering Response Direct TransferRANAP
-- GMM-msg.: Auth. And Ciph. Resp.
Security Mode CMDRANAP
Security Mode COMRANAP
Security Mode CommandRRC (DCH)
Security Mode CompleteRRC (DCH)
June 9, 2005 Confidential32 Alexander Seifarth
3.3 Routing Area Update in CELL_DCH (3)
SGSNRNCNode BUE
Downlink Direct TransferRRC (DCH)
-- GMM-message: Routing Area Update Accept
Direct TransferRANAP
-- GMM-msg.: Routing Area UpdateAccept
Uplink Direct TransferRRC (DCH)
-- GMM-message: Routing Area Update Complete Direct TransferRANAP
-- GMM-msg.: Routing AreaUpdate Complete
Iu Release CMDRANAP
Iu Release COMRANAPRRC Connection ReleaseRRC (DCH)
RRC Connection Release CompleteRRC (DCH)
Radio Link Deletion RequestNBAP
Radio Link Deletion ResponseNBAP
Release RequestALCAPRelease ConfirmALCAP
June 9, 2005 Confidential33 Alexander Seifarth
4. Session Management
June 9, 2005 Confidential34 Alexander Seifarth
4. Session Management
4.1 PDP Context Establishment 1 (High Bit Rate QoS, no traffic)
June 9, 2005 Confidential35 Alexander Seifarth
4.1. PDP Context Establishment 1 (1)
SGSNRNCNode BUE
RRC Connection RequestRRC (RACH)
Radio Link Setup RequestNBAP
Radio Link Setup ResponseNBAP
Establishment RequestALCAPEstablishment ConfirmALCAP
RRC Connection SetupRRC (FACH)
RRC Connection Setup CompleteRRC (DCH)
Radio Link Restore IndicationNBAP
June 9, 2005 Confidential36 Alexander Seifarth
4.1. PDP Context Establishment 1 (2)
SGSNRNCNode BUE
Initial Direct TransferRRC (DCH)
-- GMM-message: Service Request Initial UE MessageRANAP
-- GMM-msg.: Service Request
Security Mode CMDRANAP
Security Mode COMRANAP
Security Mode CommandRRC (DCH)
Security Mode CompleteRRC (DCH)
Uplink Direct TransferRRC (DCH)
-- SM-message: Activate PDP Context Request Direct TransferRANAP
-- SM-msg.: Activate PDP C. Req.
June 9, 2005 Confidential37 Alexander Seifarth
4.1. PDP Context Establishment 1 (3)
RNC
RAB AssignmentRequestRANAP
Radio Link Reconfiguration PrepareNBAP
Radio Link Reconf. ReadyNBAP
Establishment RequestALCAPEstablishment ConfirmALCAP
Radio Link Reconf. CommitNBAP
Radio Bearer SetupRRC (DCH)
Radio Bearer Setup CompleteRRC (DCH) RAB AssignmentResponseRANAP
Downlink Direct TransferRRC (DCH)
-- SM-message: Activate PDP Context Accept
Direct TransferRANAP
-- SM-msg.: Activate PDP ContextAccept
SGSN
June 9, 2005 Confidential38 Alexander Seifarth
4.1. PDP Context Establishment 1 (4)
RNC
Radio Bearer ReleaseRRC (DCH)
Radio Bearer Release CompleteRRC (DCH)
SGSN
Iu Release CMDRANAP
Iu Release COMRANAPRRC Connection ReleaseRRC (DCH)
RRC Connection Release CompleteRRC (DCH)
Radio Link Deletion RequestNBAP
Radio Link Deletion ResponseNBAP
Release RequestALCAPRelease ConfirmALCAP
2x
June 9, 2005 Confidential39 Alexander Seifarth
4. Session Management
4.2 PDP Context Activation 2 – ( High bit rate, active data transfer)
June 9, 2005 Confidential40 Alexander Seifarth
4.2 PDP Context Establishment 2 (1)
SGSNRNCNode BUE
RRC Connection RequestRRC (RACH)
Radio Link Setup RequestNBAP
Radio Link Setup ResponseNBAP
Establishment RequestALCAPEstablishment ConfirmALCAP
RRC Connection SetupRRC (FACH)
RRC Connection Setup CompleteRRC (DCH)
Radio Link Restore IndicationNBAP
June 9, 2005 Confidential41 Alexander Seifarth
4.2 PDP Context Establishment 2 (2)
SGSNRNCNode BUE
Initial Direct TransferRRC (DCH)
-- GMM-message: Service Request Initial UE MessageRANAP
-- GMM-msg.: Service Request
Security Mode CMDRANAP
Security Mode COMRANAP
Security Mode CommandRRC (DCH)
Security Mode CompleteRRC (DCH)
Uplink Direct TransferRRC (DCH)
-- SM-message: Activate PDP Context Request Direct TransferRANAP
-- SM-msg.: Activate PDP C. Req.
June 9, 2005 Confidential42 Alexander Seifarth
4.2 PDP Context Establishment 2 (3)
RNC
RAB AssignmentRequestRANAP
Radio Link Reconfiguration PrepareNBAP
Radio Link Reconf. ReadyNBAP
Establishment RequestALCAPEstablishment ConfirmALCAP
Radio Link Reconf. CommitNBAP
Radio Bearer SetupRRC (DCH)
Radio Bearer Setup CompleteRRC (DCH) RAB AssignmentResponseRANAP
Downlink Direct TransferRRC (DCH)
-- SM-message: Activate PDP Context Accept
Direct TransferRANAP
-- SM-msg.: Activate PDP ContextAccept
SGSN
June 9, 2005 Confidential43 Alexander Seifarth
4.2 PDP Context Establishment 2 (4)
RNC
Radio Bearer ReconfigurationRRC (DCH)
Radio Bearer Reconfiguration CompleteRRC (RACH)
SGSN
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