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UE RNC
UTRA_Idle
RRC Connection Request
[CCCH] RRC
Initial UE ID = IMSI|TMSI+LAI,
Est.Cause = originating conversational c...
UE RNC
RRC Connection Request
[CCCH] RRC
CN domain = cs, LAI, SAI, RNC-ID,
NAS-PDU = Paging Response
RRC Connection
Setup ...
UE RNC
[DCCH] RRC
UE
RANAP
Uplink Direct Transfer[DCCH] RRC
CN domain = cs, NAS-PDU =
CC-message: Call Confirmed
LAI, SAI,...
UE RNC UE
LAI, SAI, NAS-PDU =
Connection ACK
Direct TransferRANAP
SAPI=0, NAS-PDU = Connection ACK
Direct TransferRANAPCN ...
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Complete umts call flow

Complete umts call flow

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Complete umts call flow

  1. 1. UE RNC UTRA_Idle RRC Connection Request [CCCH] RRC Initial UE ID = IMSI|TMSI+LAI, Est.Cause = originating conversational call Initial UE MessageRANAP CN domain = cs, LAI, SAI, RNC-ID, NAS-PDU = CM Service Request call request (User) RRC Connection Setup[CCCH] RRC U-RNTI, C-RNTI, signalling radio bearer RB1..RB4, TrCH configuration, PhCH configuration, radio access capability update requirementRRC Connection Setup Complete[DCCH] RRC Initial Direct Transfer[DCCH] RRC CN domain = cs, NAS-PDU = MM- message: CM Service Request CELL_DCH UE UE radio access capabilities Direct TransferRANAP SAPI=0, NAS-PDU = Authentication Req. Downlink Direct Transfer[DCCH] RRC CN domain = cs, NAS-PDU = MM- message: Authentication Request UplinkDirect Transfer[DCCH] RRC CN domain = cs, NAS-PDU = MM- message: Authentication Response LAI, SAI, NAS-PDU = Authentication Resp. Direct TransferRANAP Security Mode Command RANAP Security Mode Command permitted UIA, IK, permitted UEA, CK, … selected UIA, selected UEA, ciphering activation time, … [DCCH] RRC [DCCH] RRC Security Mode Complete Security Mode CompleteRANAP selected UIA, selected UEA [DCCH] RRC Uplink Direct Transfer CN domain = cs, NAS-PDU = CC-message: Setup RANAP Direct Transfer LAI, SAI, NAS-PDU = Setup RANAP Paging CN domain = cs, LAI, IMSI, TMSI, cause [PCCH] RRC UE-ID = TMSI|IMSI, cause = terminating conversation call| terminating cause unknown UTRA_Idle MSC Server … Paging Type 1 RNC
  2. 2. UE RNC RRC Connection Request [CCCH] RRC CN domain = cs, LAI, SAI, RNC-ID, NAS-PDU = Paging Response RRC Connection Setup Complete Initial Direct Transfer[DCCH] RRC CN domain = cs, NAS-PDU = MM message: Paging Response UE UE radio access capabilities Direct Transfer Authentication Req. Downlink Direct Transfer[DCCH] RRC CN domain = cs, NAS-PDU = MM- message: Authentication Request UplinkDirect Transfer[DCCH] RRC LAI, SAI, NAS-PDU = Authentication Resp. Direct TransferRANAP RANAPSecurity Mode Command permitted UIA, IK, permitted UEA, CK, … selected UIA, selected UEA, ciphering activation time, … [DCCH] RRC [DCCH] RRCSecurity Mode Complete Security Mode Completeselected UIA, selected UEA [DCCH] RRC CN domain = cs, NAS-PDU = CC- message: Setup RANAP Direct Transfer LAI, SAI, NAS-PDU = Setup Initial UE ID = IMSI|TMSI+LAI, Est.Cause = Terminating conversational call U-RNTI, C-RNTI, signalling radio bearer RB1..RB4, TrCH configuration, PhCH configuration, radio access capability update requirement [CCCH] RRC RRC Connection Setup [DCCH] RRC Initial UE MessageRANAP RANAP Security Mode Command RANAP Downlink Direct Transfer MSC Server RNC CELL_DCH CN domain = cs, NAS-PDU = MM-message: Authentication Response
  3. 3. UE RNC [DCCH] RRC UE RANAP Uplink Direct Transfer[DCCH] RRC CN domain = cs, NAS-PDU = CC-message: Call Confirmed LAI, SAI, NAS-PDU = Call Confirmed RANAP Direct Transfer SAPI=0, NAS-PDU = Call Proceeding RANAP Direct Transfer [DCCH] RRC CN domain = cs, NAS-PDU = CC -message: Call Proceeding Downlink Direct Transfer Radio Bearer Setup RAB Assignment Request RABSetupOrModifyItem RAB Parameter [DCCH] RRC RRC state = CELL_DCH , RAB to setup radio bearer to setup, signalling radio bearer , transport channels to add, physical channel Radio Bearer Setup Complete[DCCH] RRC RAB Assignment Response successful setup [DCCH] RRCRAB Assignment Request RABSetupOrModifyItem RAB Parameter [DCCH] RRC Radio Bearer Setup RAB Assignment ResponseRANAP [DCCH] RRC successful setup Uplink Direct Transfer[DCCH] RRC LAI, SAI, NAS-PDU = Alerting Direct TransferRANAP SAPI=0, NAS-PDU = Alerting Direct TransferRANAP CN domain = cs, NAS-PDU = CC-message: Alerting Downlink Direct Transfer[DCCH] RRC Uplink Direct Transfer[DCCH] RRC LAI, SAI, NAS-PDU = Connect Direct TransferRANAP SAPI=0, NAS-PDU = Connect Direct TransferRANAP CN domain = cs, NAS-PDU = CC-message: Connect Downlink Direct Transfer [DCCH] RRC MSC Server RNC RRC state = CELL_DCH , RAB to setup radio bearer to setup, signalling radio bearer , transport channels to add, physical channel Radio Bearer Setup Complete CN domain = cs, NAS-PDU = CC-message: Alerting CN domain = cs, NAS-PDU = CC-message: Connect
  4. 4. UE RNC UE LAI, SAI, NAS-PDU = Connection ACK Direct TransferRANAP SAPI=0, NAS-PDU = Connection ACK Direct TransferRANAPCN domain = cs, NAS-PDU = CC-message: Connection ACK Uplinkdirect Transfer[DCCH] RRC Downlink Direct Transfer [DCCH] RRC call active LAI, SAI, NAS-PDU = Disconnect Direct TransferRANAP SAPI=0, NAS-PDU = Disconnect Direct TransferRANAPCN domain = cs, NAS-PDU = CC-message: Disconnect Uplinkdirect Transfer [DCCH] RRC [DCCH] RRC Downlink Direct Transfer CN domain = cs, NAS-PDU = CC-message: Disconnect LAI, SAI, NAS-PDU = Release Direct TransferRANAP SAPI=0, NAS-PDU = Release Direct TransferRANAP CN domain = cs, NAS-PDU = CC-message: Release Down linkdirect Transfer [DCCH] RRC Uplink Direct Transfer CN domain = cs, NAS-PDU = CC-message: Release LAI, SAI, NAS-PDU = Release complete Direct TransferRANAP SAPI=0, NAS-PDU = Release completeDirect TransferRANAPCN domain = cs, NAS-PDU = CC-message: Release complete Uplinkdirect Transfer [DCCH] RRC Downlink Direct Transfer [DCCH] RRC Iu Release Command cause = normal event [DCCH] RRC cause = normal event [DCCH] RRC RRC Connection Release Complete Iu Release Complete RRC Connection Release RANAP released RAB Iu Release Command [DCCH] RRC cause = normal event [DCCH] RRC RRC Connection Release Complete Iu Release Complete RRC Connection Release RANAP released RAB cause = normal event RANAP RANAP LAI, SAI, NAS-PDU = Connection ACK [DCCH] RRC UTRA_Idle UTRA_Idle MSC Server RNC CN domain = cs, NAS-PDU = CC-message: Release complete

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