UERNCNodeBMGW/CNRRC: RRC Connection Request (RACH)NBAP: Radio Link Setup RequestNBAP: Radio Link Setup ResponseALCAP: ERQ (Establish Request)ALCAP: ECF (Establish Confirm)RRC: RRC Connection Setup (FACH) [RRCconnRepTimer1/2(100ms,1s)]L1 SynchronizationNBAP: Synchronization IndicationRRC: RRC Connection Setup Complete (DCH)RRC: Initial Direct Transfer (MM: CM Service Request)SCCP: CR (Connection Request)RANAP: Initial UE Message (MM: CM Service Request)SCCP: CC (Connection Confirm)RANAP: Direct Transfer (MM: Authentication Request)RRC: Downlink Direct Transfer (MM: Authentication Request)RRC: Uplink Direct Transfer (MM: Authentication Response)RANAP: Direct Transfer (MM: Authentication Response)RANAP: Common IDRANAP: Security Mode CommandRRC: Security Mode CommandFP: Downlink SynchFP: Uplink SynchRRC Connection Establishment CELL DCH StateRNC checks if resources are available: BTS, AC, Transmission.If not it sends RRC Connection RejectT300=2s ; N300=3L1 SynchronizationT312=6s ; N312=4MOC CS Message Flow

UERNCNodeBMGW/CNRRC: Security Mode CompleteRANAP: Security Mode CompleteRRC: Uplink Direct Transfer (CC: Setup)RANAP: Direct Transfer (CC: Setup)RANAP: Direct Transfer (CC: Call Proceeding)RRC: Downlink Direct Transfer (CC: Call Proceeding)RANAP: RAB Assignment RequestNBAP: Radio Link Reconfiguration PrepareNBAP: Radio Link Reconfiguration ReadyALCAP: ERQ (Establish Request)ALCAP: ECF (Establish Confirm)NBAP: Radio Link Reconfiguration Commit)RRC: Radio Bearer SetupRRC: Radio Bearer Setup CompleteRANAP: RAB Assignment ResponseALCAP: ERQ (Establish Request)ALCAP: ECF (Establish Confirm)RAB EstablishmentFP: Downlink SynchFP: Uplink SynchRL modification procedure:SRB+DCH, HW resources checkedPossible failure in AAL2 setup (Iub, Iur and Iu)Soft handover is not allowed during the RAB establishment procedure (The mobile can not add or remove cells in AS, parallel procedure not allowed) this makes the UE and Node B particularly sensitive to mobility and dominance Timer wf_rb_setup_cpl (6s) is started when the RRC: Radio Bearer Setup message is sent to the UE In case the timer expires Iu Release Request is sent to the CN with release cause (radio_conn_lost)

Call EstablishedUERNCNodeBRANAP: Direct Transfer (CC: Connect)RRC: Downlink Direct Transfer (CC: Connect)RRC: Uplink Direct Transfer (CC: Connect Acknowledge)RANAP: Direct Transfer (CC: Connect Acknowledge)RRC: Uplink Direct Transfer (CC: Release Complete)RANAP: Direct Transfer (CC: Release Complete)RANAP: Iu Release CommandRRC: Uplink Direct Transfer (CC: Disconnect)RANAP: Direct Transfer (CC: Disconnect)RANAP: Direct Transfer (CC: Release)RRC: Downlink Direct Transfer (CC: Release)RANAP: Iu Release CompleteMGW/CNRANAP: Location ReportRRC: Measurement ControlRRC: Downlink Direct Transfer (CC: RRC Connection Release)NBAP: Radio Link Deletion RequestNBAP: Radio Link Deletion ResponseALCAP: ERQ (Release Request)RANAP: Direct Transfer (CC: Alerting)RRC: Downlink Direct Transfer (CC: Alerting)RRC: Uplink Direct Transfer (CC: RRC Connection Release Complete)ALCAP: ERQ (Release Request)ALCAP: ERQ (Release Response)ALCAP: ERQ (Release Response)RRC: Uplink Direct Transfer (CC: RRC Connection Release Complete)RRC: Uplink Direct Transfer (CC: RRC Connection Release Complete)Call Disconnect (by MOC)

Call Flow

PRACH procedure !!L1 Synchronization

UERNCNodeBMGW/CNRRC: RRC Connection Request (RACH)NBAP: Radio Link Setup RequestNBAP: Radio Link Setup ResponseALCAP: ERQ (Establish Request)ALCAP: ECF (Establish Confirm)L1 SynchronizationNBAP: Synchronization IndicationRRC: RRC Connection Setup Complete (DCH)RRC: Initial Direct Transfer (MM: Paging Response)SCCP: CR (Connection Request)RANAP: Initial UE Message (MM: Paging Response)SCCP: CC (Connection Confirm)RANAP: Direct Transfer (MM: Authentication Request)RRC: Downlink Direct Transfer (MM: Authentication Request)RRC: Uplink Direct Transfer (MM: Authentication Response)RANAP: Direct Transfer (MM: Authentication Response)RANAP: Common IDRANAP: Security Mode CommandRRC: Security Mode CommandFP: Downlink SynchFP: Uplink SynchRRC Connection Establishment CELL DCH StateMTC CS Message FlowRANAP: PagingRRC: Paging Type 1T300=2s ; N300=3L1 SynchronizationRNC checks if resources are available: BTS, AC, Transmission.If not it sends RRC Connection RejectRRC: RRC Connection Setup (FACH) [RRCconnRepTimer1/2(100ms,1s)]

UERNCNodeBMGW/CNRRC: Security Mode CompleteRANAP: Security Mode CompleteRRC: Uplink Direct Transfer (CC: Setup)RANAP: Direct Transfer (CC: Setup)RANAP: Direct Transfer (CC: Call Confirmed)RRC: Downlink Direct Transfer (CC: Call Confirmed)RANAP: RAB Assignment RequestNBAP: Radio Link Reconfiguration PrepareNBAP: Radio Link Reconfiguration ReadyALCAP: ERQ (Establish Request)ALCAP: ECF (Establish Confirm)NBAP: Radio Link Reconfiguration Commit)RRC: Radio Bearer SetupRRC: Radio Bearer Setup CompleteRANAP: RAB Assignment ResponseALCAP: ERQ (Establish Request)ALCAP: ECF (Establish Confirm)RAB EstablishmentFP: Downlink SynchFP: Uplink SynchRL modification procedure:SRB+DCH, HW resources checkedPossible failure in AAL2 setup (Iub, Iur and Iu)Soft handover is not allowed during the RAB establishment procedure (The mobile can not add or remove cells in AS, parallel procedure not allowed) this makes the UE and Node B particularly sensitive to mobility and dominance Timer wf_rb_setup_cpl (6s) is started when the RRC: Radio Bearer Setup message is sent to the UE In case the timer expires Iu Release Request is sent to the CN with release cause (radio_conn_lost)

Call EstablishedUERNCNodeBRANAP: Direct Transfer (CC: Connect)RRC: Downlink Direct Transfer (CC: Connect)RRC: Uplink Direct Transfer (CC: Connect Acknowledge)RANAP: Direct Transfer (CC: Connect Acknowledge)MGW/CNRANAP: Location ReportRRC: Measurement ControlRANAP: Direct Transfer (CC: Alerting)RRC: Downlink Direct Transfer (CC: Alerting)RRC: Downlink Direct Transfer (CC: Release Complete)RANAP: Direct Transfer (CC: Release Complete)RANAP: Iu Release CommandRRC: Downlink Direct Transfer (CC: Disconnect)RANAP: Direct Transfer (CC: Disconnect)RANAP: Direct Transfer (CC: Release)RRC: Uplink Direct Transfer (CC: Release)RANAP: Iu Release CompleteRRC: Downlink Direct Transfer (CC: RRC Connection Release)RRC: Uplink Direct Transfer (CC: Release Connection ReleaseComplete)RRC: Uplink Direct Transfer (CC: Release Connection ReleaseComplete)NBAP: Radio Link Deletion RequestNBAP: Radio Link Deletion ResponseALCAP: ERQ (Release Request)ALCAP: ERQ (Release Request)ALCAP: ERQ (Release Response)ALCAP: ERQ (Release Response)Call Disconnect (by MOC)

MOCMTCMOC/MTC Call Flow timing

RRC messages informationVoice and Video are bothConversational Call

RRC messages informationDL SRB

RRC messages informationUE in DUAL MODE

RRC messages informationVoice AMR

RRC messages informationCS call, 64Kbps,Transparent

Video Call

RRC messages informationVideo CS 64:DL SF 32UL SF 16Voice AMR:DL SF 128UL SF 64