Patent ID: 11871461
Assignee: APPLE INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A residential gateway, comprising:
a non-cellular access network (AN) comprising:
a non-cellular network access point (AP) to provide a trusted connection or an untrusted connection between a remote user equipment (UE) and the non-cellular access network; and
a non-cellular network gateway function (GF); and

a relay UE to:
enable relay service for the remote UE to connect to a core network (CN) of a cellular communication system, wherein the relay UE uses a first protocol data unit (PDU) session for first data traffic corresponding to the residential gateway and a second PDU session for second data traffic corresponding to the remote UE;
based on information of a single network slice selection assistance information (S-NSSAI) and a data network name (DNN), determine whether to forward a non-access stratum (NAS) message sent by the remote UE to an access and mobility management function (AMF) or to use an existing PDU session, if any are shared by one or more remote UEs, associated with the S-NSSAI and the DNN,
wherein if there is no existing PDU session associated with the S-NSSAI and the DNN that is requested by the remote UE, the relay UE is configured to:
generate a first PDU session identifier (ID) that is unique within the residential gateway; and
send the NAS message to the AMF associated with the remote UE, wherein the NAS message replaces a second PDU session ID generated by the remote UE with the first PDU session ID generated by the relay UE, and wherein a request type of the NAS message is set to indicate relay traffic.