An attach attempt counter is used to limit the number of subsequently rejected attach attempts. The attach attempt counter shall be incremented as specified in subclause 5.5.1.2.6. Depending on the value of the attach attempt counter, specific actions shall be performed. The attach attempt counter shall be reset when:
- the UE is powered on;
- a USIM is inserted;
- an attach or combined attach procedure is successfully completed;
- a GPRS attach or combined GPRS attach procedure is successfully completed in A/Gb or Iu mode;
- a combined attach procedure is completed for EPS services only with cause #2, #16, #17, #18 or #22;
- an attach or combined attach procedure is rejected with cause #11, #12, #13, #14, #15, #25 or #35:
- a network initiated detach procedure is completed with cause #11, #12, #13, #14, #15 or #25; or
- a new PLMN is selected.
Additionally the attach attempt counter shall be reset when the UE is in substate EMMDEREGISTERED.ATTEMPTING-TO-ATTACH and:
- a new tracking area is entered;
- timer T3402 expires; or
- timer T3346 is started.
- the UE is powered on;
- a USIM is inserted;
- an attach or combined attach procedure is successfully completed;
- a GPRS attach or combined GPRS attach procedure is successfully completed in A/Gb or Iu mode;
- a combined attach procedure is completed for EPS services only with cause #2, #16, #17, #18 or #22;
- an attach or combined attach procedure is rejected with cause #11, #12, #13, #14, #15, #25 or #35:
- a network initiated detach procedure is completed with cause #11, #12, #13, #14, #15 or #25; or
- a new PLMN is selected.
Additionally the attach attempt counter shall be reset when the UE is in substate EMMDEREGISTERED.ATTEMPTING-TO-ATTACH and:
- a new tracking area is entered;
- timer T3402 expires; or
- timer T3346 is started.
