Patent ID: 11889298

Abstract:
Method and apparatus relating to a wireless device supporting 3GPP 4G and 5G radio interfaces and also supporting non-3GPP access, i.e., WiFi, for selecting a security gateway of a first type e.g., ePDG or a security gateway of a second type, e.g., N3IWF for accessing to the core network of first type, e.g., EPC or of a second type e.g., SGC. As the access methods via ePDG and N3IWF are not the same, the wireless device has to determine based on information obtained by a function in the network and its capabilities whether to use an ePDG or an N3IWF for untrusted non-3GPP access. The wireless device may take into account in the selection whether it is connected to the Core network over 3GPP 4G or 5G radio access network. A corresponding apparatus claim is provided.