UE NodeB RNC SGSNNBAP: Radio Link Setup Request

NBAP: Radio Link Setup Response

AAL2SIG: ERQ

AAL2SIG: ECF

NBAP: Synchronization Indication

RRC: 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 Command

RRC: Security Mode CompleteRANAP: Security Mode CompleteRANAP: Common ID

MOC PS Message Flow

L1 Synchronization

RRC: RRC Connection Request (RACH)

FP: Downlink SynchFP: Uplink Synch

RRC: RRC Connection Setup Complete (DCH)

RRC Connection Establishment – CELL DCH State

RRC: RRC Connection Setup (FACH) [RRCconnRepTimer1/2(100ms,1s)]

RNC checks if resources are available: BTS, AC, Transmission.If not it sends RRC Connection Reject

L1 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)

UE NodeB RNC SGSNMOS PS Message Flow

NBAP: Radio Link Reconfiguration Commit

RRC: Radio Bearer Reconfiguration

RRC: Radio Bearer Reconfiguration Complete

NBAP: Radio Link Reconfiguration Prepare

NBAP: Radio Link Reconfiguration Ready

RRC: Radio Bearer Setup

RRC: Radio Bearer Setup CompleteRANAP: RAB Assignment Response

RANAP: Direct Transfer(SM: Activate PDP Context Accept)RRC: Downlink Direct Transfer (SM: Activate PDP Context Accept)

RANAP: RAB Assignment Request

RRC: Measurement Control

RRC: Measurement Repor (Trafic Volume Reports 4a)

AAL2SIG: ERQAAL2SIG: ECF

RAB EstablishmentSRB + DCH 0/0

RL modification procedure:SRB+DCH, HW resources checked

Uplink & 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 Commit

NBAP: Radio Link Reconfiguration Prepare

NBAP: Radio Link Reconfiguration Ready

AAL2SIG: ERQAAL2SIG: ECF

RRC: Radio Bearer Release

RRC: 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)

UE NodeB RNC SGSN

RANAP: Iu Release Command

RANAP: Iu Release CompleteRRC: Radio Bearer Release Complete

NBAP: Radio Link Deletion Request

NBAP: Radio Link Deletion Response

AAL2SIG: REL (Release Request)AAL2SIG: RCL (Release Confirm)

MOS PS Message Flow

RRC: 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 information

PS can also be OriginatingHighPrioritySgnallingAnd Registation (Only for Attach)

RRC messages information

RRC messages information

RRC messages information

SIM Card QoS profile

Release RRCConnection

Release RRC Connection

URA_PCH

CELL_DCH CELL_FACH

CELL_PCH

Establish RRCConnection

UTRA RRC Connected Mode

(UE camps on UTRAN cell)

Idle Mode

Available in Future

UMTS RRC States/Modes

UL/DL activation Timer:2 sec

Inactivity Timer:2 sec for PS DL/UL3842 sec for PS DL/UL1283 sec for PS DL/UL645 sec for PS DL/UL32

Traffic Volumes

MS activity supervision timer: 15 min

Transition Cell FACH Cell DCHIn UL direction the need for the capacity is detected by the MAC in UE

UL Traffic Volume Based RRC State Transition

Cell DCH and Upgrade to higher UL Bit Rate

Cell DCH andIIni/MinAllowed ULBit Rate

Cell FACH

In the DL the process and parameters value are the same

RRC messages information

UL Traffic volumes Low threshold information sent after RAB setup complete

RRC messages information

UE Buffer triggers Threshold for RAB Upgrade

RRC messages information

First RAB ReconfigurationDL 32Kbps(SF64)/ UL 32Kbps SF32)

RRC messages information

UL Traffic volumes High threshold information sent after RAB setup complete

RRC messages information

Second RAB ReconfigurationDL 384Kbps(SF8)/ UL 32Kbps SF32)

Maximum 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

RRC messages information

Cell DCH Cell FACH

RRC messages information

Cell FACH Cell PCH

RRC messages information

Cell PCH Cell FACH

RRC messages information

Cell FACH Cell DCH