name: T3411
full_form: Timer T3411
context: The UE:
  -	shall initiate an attach or combined attach procedure on the expiry of timers T3411, T3402 or T3346 (see 3GPPÂ TSÂ 24.008Â [13]);
  -	may initiate an attach for emergency bearer services even if timer T3346 is running;
  -	may initiate an attach if the UE is a UE configured to use AC11 - 15 in the selected PLMN, even if timer T3402, T3346 or timer T3447 is running;
  -	shall initiate an attach or combined attach procedure when entering a new PLMN, if timer T3346 is running and the new PLMN is not equivalent to the PLMN where the UE started timer T3346, the PLMN identity of the new cell is not in one of the forbidden PLMN lists and the tracking area is not in one of the lists of forbidden tracking areas;
  -	shall initiate an attach or combined attach procedure when the tracking area of the serving cell has changed, if timer T3346 is not running, the PLMN identity of the new cell is not in one of the forbidden PLMN lists and the tracking area of the new cell is not in one of the lists of forbidden tracking areas;
  -	shall use requests for non-EPS services for non-emergency call from CM layers to trigger a combined attach procedure, if timer T3346 is not running (see clauseÂ 5.5.1.3), or to attempt to select GERAN or UTRAN radio access technology and proceed with the appropriate MM and CC specific procedures;
  -	shall use requests for non-EPS services for emergency call from CM layers to attempt to select GERAN or UTRAN radio access technology and proceed with the appropriate MM and CC specific procedures;
  -	may initiate an attach procedure upon receiving a request from upper layers to transmit user data related to an exceptional event and the UE is allowed to use exception data reporting (see the ExceptionDataReportingAllowed leaf of the NAS configuration MO in 3GPPÂ TSÂ 24.368Â [15A]) if timer T3346 is not already running for "MO exception data" and even if timer T3402 or timer T3411 is running;
  -	may initiate an attach procedure upon request of the upper layers to establish a PDN connection for emergency bearer services; and
  -	may initiate an attach procedure upon request of the upper layers to establish a PDN connection for RLOS, if timer T3346 is not running.
description: Timer T3411 is used by the UE to initiate an attach or combined attach procedure upon expiry.
explanation: Categorized as a Timer because it controls the timing of UE actions.
biotag_Context: O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,B-Device,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,B-Network,O,O,O,O,O,B-Network,O,O,B-Device,O,O,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,B-Network,O,B-Network,O,O,O,O,O,O,O,O,B-Network Function,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,B-Network,O,B-Network,O,O,O,O,O,O,O,O,B-Network Function,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,O,B-Miscellaneous,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network,O,O,O,O,O,B-Parameter,O,O,O
biotag_Description: B-Parameter,I-Parameter,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O