Patent ID: 11871291
Assignee: APPLE INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A device, comprising a processor configured to implement a session management function (SMF), wherein the processor is configured to:
determine an association of an access and mobility management function (AMF) with a first radio access network (RAN);
identify a handover request message received from the first RAN via the AMF, wherein the handover request message indicates one or more quality of service (QoS) flows;
identify a request to establish an indirect data forwarding associated with a handover, wherein the request is received from the first RAN via the AMF;
cause transmission of a first create indirect data forwarding tunnel request message to a source user plane function (UPF);
cause transmission of a second create indirect data forwarding tunnel request message to a target UPF;
cause transmission of a modification request message to a protocol data unit (PDU) session anchor (PSA), wherein the modification request message includes a target UPF Internet protocol (IP) address and a tunnel endpoint identification (TEID), the TEID being associated with the indirect data forwarding; and
cause transmission of a response addressed to the AMF indicating that the indirect data forwarding is established for the one or more QoS flows.