ystem information. Search among the associated RATs for that PLMN Respond to NAS whether such cell is found If a cell is found which satisfies cell selection criteria, camp on that cell Cell reselection Maintain a list of equivalent PLMN identities and Perform the required measurements to support cell provide the list to AS reselection Maintain a list of forbidden tracking areas and provide the Detect and synchronize to a broadcast channel list to AS Receive and process broadcast information Forward NAS system information to NAS Change cell if a more suitable cell is found Location Register the UE as active after power up Report registration area information to NAS registration Register the UE's presence in a registration area regularly or when entering a new tracking area De-register UE when shutting down Maintain a list of forbidden tracking areas RAN notification Register the UE's presence in a RAN-based notification area update area and periodically or when entering a new RNA New Radio Access Layer 2/3 Aspects and System Operation 251 PDCCH monitoring occasions and can consist of multiple time slots (e.g., subframe or OFDM symbols) where paging DCI can be sent. One paging frame (PF) is one radio frame and may contain one or multiple PO(s) or starting point of a PO. In multi-beam operations, the UE can assume that the same paging message is repeated in all transmitted beams, and thus the selection of the beam(s) for the reception of the paging message is up to UE imple- mentation. The paging message is the same for both RAN-initiated paging and CN-initiated paging. The UE initiates RRC Connection Resume procedure upon receiving RAN-initiated paging. If the UE receives a CN-initiated paging in RRC_INACTIVE state, the UE transi- tions to RRC_IDLE state and informs the NAS. The PF and PO for paging are determined by the following expressions. The SFN for the PF is determined by (SFN PF_offset)modT = (T/N)(UE_IDmodN) where index is indicating the index of the PO is determined by is = UE_ID/N mod The parameters of 