User Equipment (UE) procedures in idle mode and procedures for cell reselection in connected mode
The present document specifies the Access Stratum (AS) part of the Idle Mode procedures applicable to a UE. The non-access stratum (NAS) part of Idle mode procedures and processes is specified in [5].
The present document also specifies cell selection and reselection processes applicable to UEs in connected mode. Invocation of these processes is described in [4].
The present document specifies the model for the functional division between the NAS and AS in a UE.
The present document applies to all UEs that support at least UTRA, including multi-RAT UEs as described in 3GPP specifications, in the following cases:
- When the UE is camped on a UTRA cell;
- When the UE is searching for a cell to camp on;
NOTE: The details for those cases are described in the specifications of the other RAT.
The present document presents also examples of inter-layer procedures related to the idle mode processes and describes idle mode functionality of a multi-RAT UTRA/GSM/E-UTRA UE.
The present document also specifies how idle-mode and reselection procedures are affected by the provision of MBMS services.