HANDLING FAILURE OF NON-3GPP ACCESS TO 5GCN NOT BEING ALLOWED

摘要

An interworking function in a core network system, such as a 5G core network, attempts to establish a secure association with user equipment (UE) in an untrusted access network. When the secure association is not accepted by the 5G core network, the UE receives from the core network a response including a message type indicating that Non-3GPP access to the 5G core network is not allowed. Upon receiving the response message, the UE ends the session by sending a 5G- Stop message formatted in an Extensible Authentication Protocol (EAP) response. The EAP-Response/5G-Stop message includes a message-id field with a 5G Stop value.