A method and apparatus for updating credential information in a wireless communication system

A method of an access and mobility function (AMF) entity in wireless communication system, the method comprising:

• receiving, from a user equipment (UE), a registration request message based on a credential of a credentials holder via 3rd generation partnership project (3GPP) interworking function (N3IWF) entity for an untrusted non-3GPP access;
• receiving, from the credentials holder, updated credential information or a credential information update indication;
• and
• transmitting, to the UE, a registration accept message including the updated credential information or the credential information update indication,
• wherein the updated credential information includes at least one of:
• credentials holder controlled prioritized list of preferred stand-alone non-public network (SNPN) s with N3IWF fully qualified domain names (FQDNs) of the preferred SNPNs,
• credentials holder controlled prioritized list of group identifier (ID) for network selections (GINs) with N3IWF FQDNs of SNPNs which broadcast the GINs, or
• credentials holder controlled prioritized list of N3IWFs.

A user equipment (UE) in wireless communication system, the UE comprising:

• a transceiver;
• and
• a controller operably coupled to the transceiver, the controller configured to:
• transmit, to an access and mobility function (AMF) entity, a registration request message based on a credential of a credentials holder via 3rd generation partnership project (3GPP) interworking function (N3IWF) entity for an untrusted non-3GPP access, and
• receive, from the AMF entity, a registration accept message including updated credential information or a credential information update indication,
• wherein the updated credential information included in the registration message includes at least one of:
• credentials holder controlled prioritized list of preferred stand-alone non-public networks (SNPNs) with N3IWF fully qualified domain names (FQDNs) of the preferred SNPNs,
• credentials holder controlled prioritized list of group identifier (ID) for network selections (GINs) with N3IWF FQDNs of SNPNs which broadcast the GINs, or
• credentials holder controlled prioritized list of N3IWFs.

An access and mobility function (AMF) entity in wireless communication system, the AMF entity comprising:

• a transceiver;
• and
• a controller operably coupled to the transceiver, the controller configured to:
• receive, from a user equipment (UE), a registration request message based on a credential of a credentials holder via 3rd generation partnership project (3GPP) interworking function (N3IWF) entity for an untrusted non-3GPP access,
• receive, from the credentials holder, updated credential information or a credential information update indication, and
• transmit, to the UE, a registration accept message including the updated credential information or the credential information update indication, wherein the updated credential information includes at least one of:
• credentials holder controlled prioritized list of preferred stand-alone non-public network (SNPN) s with N3IWF fully qualified domain names (FQDNs) of the preferred SNPNs,
• credentials holder controlled prioritized list of group identifier (ID) for network selections (GINs) with N3IWF FQDNs of SNPNs which broadcast the GINs, or
• credentials holder controlled prioritized list of N3IWFs.