9 List of system parameters
24.2443GPPRelease 17Stage 3TSWireless LAN control plane protocol for trusted WLAN access to EPC
9.1 Timers
Table 9.1.1: WLCP timers – UE side
TIMER |
TIMER VALUE |
STATE |
CAUSE OF START |
NORMAL STOP |
ON THE |
T3582 |
8s |
PROCEDURE TRANSACTION PENDING |
PDN CONNECTIVITY REQUEST sent |
PDN CONNECTIVITY ACCEPT received or PDN CONNECTIVITY REJECT received |
Retransmission of the same message |
T3592 |
6s |
PROCEDURE TRANSACTION PENDING |
PDN DISCONNECT REQUEST sent |
PDN DISCONNECT ACCEPT received or PDN DISCONNECT REJECT received |
Retransmission of the same message |
Tw1 |
NOTE 2 |
PDN CONNECTIVITY PENDING or SCM_RESPONSE (defined in 3GPP TS 24.302 [3]) reception |
PDN CONNECTIVITY REJECT with a timer value for Tw1 received, SCM_RESPONSE (defined in 3GPP TS 24.302 [3]) with a timer value for Tw1 received |
PDN DISCONNECT REQUEST with cause #39 "reactivation requested" |
None |
T3586 |
8s |
PROCEDURE TRANSACTION PENDING |
PDN MODIFICATION REQUEST sent |
PDN MODIFICATION ACCEPT received or PDN MODIFICATION REJECT received |
Retransmission of the same message |
NOTE 1: Typically, the procedures are aborted on the fifth expiry of the relevant timer. Exceptions are described in the corresponding procedure description. NOTE 2: The value of this timer can be provided by the network operator when a request to activate a PDN connection is rejected by the network with a certain cause or when a request to activate a PDN connection in single-connection mode (defined in 3GPP TS 24.302 [3]) is rejected by the network with a certain cause. |
Table 9.1.2: WLCP timers – TWAG side
TIMER |
TIMER VALUE |
STATE |
CAUSE OF START |
NORMAL STOP |
ON THE |
T3585 |
8s |
PDN CONNECTIVITY PENDING PROCEDURE TRANSACTION PENDING |
PDN CONNECTIVITY ACCEPT sent |
PDN CONNECTIVITY COMPLETE received or PDN CONNECTIVITY REJECT received |
Retransmission of the same message |
T3595 |
8s |
PDN DISCONNECT PENDING PROCEDURE TRANSACTION PENDING |
PDN DISCONNECT REQUEST sent |
PDN DISCONNECT ACCEPT received |
Retransmission of the same message |
T3586 |
8s |
PROCEDURE TRANSACTION PENDING |
PDN MODIFICATION REQUEST sent |
PDN MODIFICATION ACCEPT received or PDN MODIFICATION REJECT received |
Retransmission of the same message |
T3587 |
8s |
WLCP BEARER CONTEXT ACTIVE PENDING |
WLCP BEARER SETUP REQUEST sent |
WLCP BEARER SETUP ACCEPT received or WLCP BEARER SETUP REJECT received |
Retransmission of the same message |
T3588 |
8s |
WLCP BEARER CONTEXT MODIFY PENDING |
WLCP BEARER MODIFY REQUEST sent |
WLCP BEARER MODIFY ACCEPT received or WLCP BEARER MODIFY REJECT received |
Retransmission of the same message |
T3597 |
8s |
WLCP BEARER CONTEXT INACTIVE PENDING |
WLCP BEARER RELEASE REQUEST sent |
WLCP BEARER RELEASE ACCEPT received or or WLCP BEARER RELEASE REJECT received |
Retransmission of the same message |
NOTE 1: Typically, the procedures are aborted on the fifth expiry of the relevant timer. Exceptions are described in the corresponding procedure description. |
Annex A (informative):
Cause values for WLCP protocol