WCDMA/UMTS Timer

T300

T302

T304

T305

T307

T308

T309

T310

T311

T312

T313

T314

T315

T316

T317

Function when Start/Stop/at expiry

>> At expiry, re-transmits RRC CONNECTION REQ if V300<=N300, ELSE go to IDLE Mode

>> At expiry, re-transmits Cell Update/URA Update if V302<= N302 Else goto IDLE Mode

>> At Expiry, re-transmits UE capability information if V304<=N304, Else initiate a Cell Update proc

>>Starts at the transmission of RRC CONNECTION REQ >>Stops at the receipt of RRC Connection setup 

>> Starts at the transmission of Cell Update or URA Update >> Stops at the receipt of Cell Update Confirm or URA Update Confrim 

>> Starts at the transmission of UE Capability Info >> Stops at the receipt of UE capability Information Confirm 

>> Starts upon entering CELL_FACH/URA_PCH/CELL_PCH state. OR upon receipt of CELL Update Confirm/URA Update Confirm >> Stops upon entering another state 

>> At expiry, transmits CELL Update if T307 is not activated and UE detects "In Service Area" Otherwise If T307 is not active, initiate starting of timer T307 

>>Starts when timer T305 has been expired and UE detects the " Out of Service Area" >>Stops when UE detects "In Service Area" 

>>At Expiry it transit to the IDLE MODE >> Starts at the transmission of RRC Connection Release Complete 

>> Not Stopped 

>> At Expiry,transmits RRC connection Release Complete IF V308<=N308 ELSE GOTO IDLE MODE 

>>Starts upon receipt of Cell Change Order from UTRAN message 

>> Stops upon successful response to a CONNECTION ESTABLISHMENT REQUEST in a new CELL 

>> At Expiry, resumes the Connection to UTRAN network >> Starts upon transmission of PUSCH Capacity Request message 

>> Stops upon receipt of Physical Shared Channel Allocation 

>> At expiry transmits PUSCH Capacity Request if V310 <= N310 ELSE stops the procedure 

>> Starts upon reception of Physical Shared Channel Allocation ( When "PUSCH ALLOCATION" set to "PUSCH ALLOCATION pending") 

>> Stops upon receipt of Physical Shared Channel Allocation ( When "PUSCH allocation" set to "PUSCH allocation assignment") 

>> At Expiry, UE initiate a PUSCH CAPACITY REQUEST procedure >>Starts When UE starts to establish dedicated channel mode 

>>Stops When UE detects N312 "in sync" indication from Layer-1(PHY) >>Timer expires when criteria for physical channel establishment failure is fulfilled 

>>Timer Starts when UE detects consecutive N313 "out of sync" indication from Layer-1(PHY) >> Stops when UE detects consecutive N315 "in sync" indication from Layer-1(PHY) 

>> Timer expires when the criteria for Radio Link failure is fulfilled 

>>Starts after the criteria for radio link failure have been fulfilled, and if radio bearers associated with T314 exists. 

>>Stops when the cell update procedure completes >>REFER 8.3.1.13 in 3GPP TS 25.331 Specification 

>>Starts after the criteria for radio link failure have been fulfilled, and if radio bearers associated with T315 exists. 

>> Stops when the cell update procedure completes >> REFER 8.3.1.14 in 3GPP TS 25.331 Specification 

>>Starts when UE detects "out of service area" in the URA_PCH or CELL_PCH state >>Stops when UE detects "in service area" 

>>At expiry,initiates cell update procedure if "in service area" is detected, OTHERWISE starts timer T317, 

transit to CELL_FACH state and initiate cell update procedure when the UE detects "in service area" 

>> Starts when timer T316 expires OR when in CELL_FACH state, UE detects "out of service area" 

>> Stops when UE detects "in service area" >> At Expiry, transits to IDLE MODE