A.72 Monitoring of network slice selection

28.5523GPP5G performance measurementsManagement and orchestrationRelease 18TS

The network slice selection service enables the network to select the network slice to serve the UE, and enables the NSSF to provide the AMF the Allowed NSSAI and the Configured NSSAI for the Serving PLMN.

The network slice selection service may be consumed during Registration procedure, during inter-PLMN mobility procedure, PDU session establishment and UE configuration update, etc.

The network slice selection is the primary step enabling the 5G networks to support network slicing, therefore the performance of network slice selection needs to be monitored.