16.6.5 Access with subscription/credentials owned by a Credentials Holder

An SNPN may allow access to UEs being authorized using credentials or subscription owned by a separate Credentials Holder (CH). The support of this feature is uniform across the SNPN as specified in TS 23.501 [3].

The following information is broadcast to support SNPN access with subscription of a Credentials Holder:

• an indication per SNPN in SIB1 that access using credentials from a Credentials Holder is supported;
• optionally a list of supported GINs in SIB18 (each GIN may be assigned to one or more SNPNs);
• an optional indication per SNPN in SIB1 that the SNPN allows registration attempts from UEs that are not explicitly configured to select the SNPN.

The above listed items are forwarded to the UE NAS layer that uses them for SNPN selection.