Content for TS 38.401 Word version: 18.0.0
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8.21 Overall procedures for Network Controlled Repeater |R18| p. 132
8.21.1 NCR Integration Procedure p. 132
A high-level flow chart for NCR integration is shown in Figure 8.22.1-1:
Phase 1:
NCR-MT setup. In this phase, the NCR-MT of the NCR (re-)selects a cell that broadcasts the NCR support indicator in SIB1. It then connects to the network as a UE, by performing the RRC connection setup procedure with the gNB-CU, and authentication with the 5GC. The NCR-MT includes the NCR indication in the RRCSetupComplete message. The gNB selects an appropriate AMF for the NCR. Upon receiving the NCR authorization information from 5GC, the gNB-CU provides the authorization information to the gNB-DU.
Phase 2:
NCR configuration. The gNB-CU may configure the NCR via RRC.
Phase 3:
NCR Start Operation. After the NCR is configured, it may start serving the UE(s).
