It is very good note for Call Flow of PS call for UMTS technology..
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UENodeBRNCSGSNNBAP: Radio Link Setup RequestNBAP: Radio Link
Setup ResponseAAL2SIG: ERQAAL2SIG: ECFNBAP: Synchronization
IndicationRRC: Initial Direct Transfer (MM: Attach Request)RANAP:
Initial UE Message MM: (Attach Request)RANAP: Direct Transfer (MM:
GPRS Identity Request)RRC: Downlink Direct Transfer (MM: GPRS
Identity Request)RRC: Uplink Direct Transfer (MM: GPRS Identity
Response)RANAP: Direct Transfer (MM: GPRS Identity Response)RANAP:
Direct Transfer (MM: Authentication & Ciphering Request)RRC:
Downlink Direct Transfer (MM: Authentication & Ciphering
Request)RRC: Uplink Direct Transfer (MM: Authentication &
Ciphering Response)RANAP: Direct Transfer (MM: Authentication &
Ciphering Response)RANAP: Security Mode CommandRRC: Security Mode
CommandRRC: Security Mode CompleteRANAP: Security Mode
CompleteRANAP: Common IDMOC PS Message FlowL1 SynchronizationRRC:
RRC Connection Request (RACH)FP: Downlink SynchFP: Uplink SynchRRC:
RRC Connection Setup Complete (DCH)RRC Connection Establishment
CELL DCH StateRRC: RRC Connection Setup (FACH)
[RRCconnRepTimer1/2(100ms,1s)]RNC checks if resources are
available: BTS, AC, Transmission.If not it sends RRC Connection
RejectL1 Synchronization
RANAP: Direct Transfer (MM: Attach Accept)RRC: Downlink Direct
Transfer (MM: Attach Accept)RRC: Uplink Direct Transfer (MM: Attach
Complete)RANAP: Direct Transfer (MM: Attach Complete)RRC: Uplink
Direct Transfer (SM: Activate PDP Context Request)RANAP: Direct
Transfer(SM: Activate PDP Context Request)UENodeBRNCSGSNMOS PS
Message FlowNBAP: Radio Link Reconfiguration CommitRRC: Radio
Bearer ReconfigurationRRC: Radio Bearer Reconfiguration
CompleteNBAP: Radio Link Reconfiguration PrepareNBAP: Radio Link
Reconfiguration ReadyRRC: Radio Bearer SetupRRC: Radio Bearer Setup
CompleteRANAP: RAB Assignment ResponseRANAP: Direct Transfer(SM:
Activate PDP Context Accept)RRC: Downlink Direct Transfer (SM:
Activate PDP Context Accept)RANAP: RAB Assignment RequestRRC:
Measurement ControlRRC: Measurement Report (Trafic Volume Reports
4a)AAL2SIG: ERQAAL2SIG: ECFRAB EstablishmentSRB + DCH 0/0RL
modification procedure:SRB+DCH, HW resources checkedUplink &
Downlink Data Transfer
RRC: Uplink Direct Transfer (SM: Deactivate PDP Context
Request)RANAP: Direct Transfer (SM: DeactivatePDP Context
Request)RANAP: Direct Transfer(SM: Deactivate PDP Context
Accept)RRC: Downlink Direct Transfer (SM: Deactivate PDP Context
Accept)NBAP: Radio Link Reconfiguration CommitNBAP: Radio Link
Reconfiguration PrepareNBAP: Radio Link Reconfiguration
ReadyAAL2SIG: ERQAAL2SIG: ECFRRC: Radio Bearer ReleaseRRC: Uplink
Direct Transfer (MM: Detach Request)RANAP: Direct Transfer (MM:
Detach Request)RANAP: Direct Transfer (MM: Detach Accept)RRC:
Downlink Direct Transfer (MM: Detach Accept)UENodeBRNCSGSNRANAP: Iu
Release CommandRANAP: Iu Release CompleteRRC: Radio Bearer Release
CompleteNBAP: Radio Link Deletion RequestNBAP: Radio Link Deletion
ResponseAAL2SIG: REL (Release Request)AAL2SIG: RCL (Release
Confirm)MOS PS Message FlowRRC: Downlink Direct Transfer (CC: RRC
Connection Release)RRC: Uplink Direct Transfer (CC: RRC Connection
Release Complete)RRC: Uplink Direct Transfer (CC: RRC Connection
Release Complete)RRC: Uplink Direct Transfer (CC: RRC Connection
Release Complete)ALCAP: ERQ (Release Request)ALCAP: ERQ (Release
Response)
RRC messages informationPS can also be
OriginatingHighPrioritySgnallingAnd Registration (Only for
Attach)
RRC messages information
RRC messages information
RRC messages informationSIM Card QoS profile
Release RRCConnectionRelease RRC
ConnectionURA_PCHCELL_DCHCELL_FACHCELL_PCHEstablish
RRCConnectionUTRA RRC Connected Mode(UE camps on UTRAN cell)Idle
ModeAvailable in FutureUMTS RRC States/ModesUL/DL activation
Timer:2 secInactivity Timer:2 sec for PS DL/UL3842 sec for PS
DL/UL1283 sec for PS DL/UL645 sec for PS DL/UL32Traffic VolumesMS
activity supervision timer: 15 min
Transition Cell FACH Cell DCH
In UL direction the need for the capacity is detected by the MAC
in UE
UL Traffic Volume Based RRC State TransitionCell DCH and Upgrade
to higher UL Bit RateCell DCH andIIni/MinAllowed ULBit Rate Cell
FACHIn the DL the process and parameters value are the same
RRC messages informationUL Traffic volumes Low threshold
information sent after RAB setup complete
RRC messages informationUE Buffer triggers Threshold for RAB
Upgrade
RRC messages informationFirst RAB ReconfigurationDL
32Kbps(SF64)/ UL 32Kbps SF32)
RRC messages informationUL Traffic volumes High threshold
information sent after RAB setup complete
RRC messages informationMaximum DL bit rate for PS domain NRT
data = 384 KbpsMaximum UL bit rate for PS domain NRT data = 64
KbpsInitial and minimum allowed bit rate in downlink = 32
KbpsInitial and minimum allowed bit rate in uplink = 32 Kbps
