D.4 Support for UE capable of simultaneously connecting to an SNPN and a PLMN

23.5013GPPRelease 18System architecture for the 5G System (5GS)TS

When a UE capable of simultaneously connecting to an SNPN and a PLMN is not set to operate in SNPN access mode, the UE only performs PLMN selection procedures as defined in clause 4.4 of TS 23.122 [17] using the Uu interface for connection to the PLMN.

A UE supporting simultaneous connectivity to an SNPN and a PLMN applies the network selection as applicable for the access and network for SNPN and PLMN respectively. Whether the UE uses SNPN or PLMN for its services is implementation dependent.

A UE supporting simultaneous connectivity to an SNPN and a PLMN applies the cell (re-)selection as applicable for the access and network for SNPN and PLMN respectively. Whether the UE uses SNPN or PLMN for its services is implementation dependent.