5G NR

Table 2.3

Functional split between access stratum and non-access stratum in RRC_IDLE and RRC_INACTIVE states [12].

RRC_IDLE and RRC_INACTIVE State Procedure	UE Non-access Stratum	UE Access Stratum
PLMN selection	• Maintain a prioritized list of PLMNs • Select a PLMN using automatic or manual mode • Request AS to select a cell belonging to this PLMN. For each PLMN, associated RAT(s) may be set • Evaluate reports of available PLMNs from AS for PLMN selection • Maintain a list of equivalent PLMN identities	• Search for available PLMNs, if the associated RAT(s) are set for the PLMN, search among those RAT(s) • Perform measurements to support PLMN selection • Synchronize to a broadcast channel to identify PLMNs • Report available PLMNs with ...