formation corresponding to the power control for both the traffic and uplink control channels. 1.3.2. Mobile mobility 1.3.2.1. Mobility in the idle mode When the mobile is in the idle state, it is located by the AMF from the TAI (Tracking Area Identity) value. The mobile listens to the broadcast information and to the paging information sent by the NG-RAN node. If the mobile is in the discontinuous reception mode (DRX), the frame that carries the paging notification is calculated from the 5G-identity S-TMSI of the UE modulo 1024. The mobile becomes aware of the paging when the content of the paging message carries the 5G-S-TMSI identifier or the I-RNTI identifier of the mobile. The mobile informs the AMF of a change of tracking zone when it falls under the coverage of a radio node whose TAI is different from the previous TAI coverage zone. The selection or reselection of cells is based on the transmitted synchronization signal CD-SSB (Cell Defining Synchronization Signal and PBCH Block) specific to each cell. 1.3.2.2. Mobility in RRC_Inactive The mobile is in the RRC_INACTIVE state for the NG-RAN and in the CM_CONNECTED state for the 5G core network. The mobile context is always stored on the node where the mobile was connected. The mobile can move in the RAN Notification Area (RNA) without notifying the NG-RAN nodes. An RNA zone comprises one or several cells located in the same TAI zone. NG-RAN and 5G-NR In the case of mobile terminating data, the UPF transfers the packet to the last NG-RAN node on which the mobile had established a radio connection. The NG-RAN node broadcasts a paging request over the air interface and transmits (through the Xn interface) a paging order to neighboring NG-RAN nodes that are configured on the same RNA area. If the paging request fails (the mobile is not reachable), then the NG-RAN node informs the AMF. If the mobile establishes a radio connection with an NG-RAN node other than the last serving node, then the new NG-RAN node initiates a procedure to retrieve the context of the mo