Enabling extended reality service proxies

A network node, the network node comprising:

• a processor, the processor configured to:
• receive, from a session management function (SMF), an N4 session request comprising an instruction to use a media over quick user datagram protocol internet connections (MOQ) relay functionality;
• determine a MOQ relay instance and send MOQ relay information associated with the MOQ relay instance to the SMF;
• receive a MOQ session establishment message from a wireless transmit/receive unit (WTRU) and establish, as a MOQ relay, a MOQ connection with the WTRU and an application server;
• receive, from the application server, a MOQ protocol data unit (PDU) comprising PDU set information;
• identify the PDU set information associated with the MOQ PDU;
• and
• transmit a PDU to a radio access network (RAN) node, wherein the PDU set information is included in a GTP-U header of the PDU.