US 12,413,653 B1
Protocol data unit systems and methods
Yunjung Yi, Vienna, VA (US)
Assigned to Cable Television Laboratories, Inc., Louisville, CO (US)
Filed by CABLE TELEVISION LABORATORIES, INC., Louisville, CO (US)
Filed on Dec. 21, 2023, as Appl. No. 18/393,532.
Application 18/393,532 is a continuation in part of application No. 18/382,944, filed on Oct. 23, 2023.
Claims priority of provisional application 63/429,042, filed on Nov. 30, 2022.
Claims priority of provisional application 63/423,409, filed on Nov. 7, 2022.
Claims priority of provisional application 63/422,791, filed on Nov. 4, 2022.
Claims priority of provisional application 63/418,280, filed on Oct. 21, 2022.
Int. Cl. H04L 69/16 (2022.01); H04W 76/12 (2018.01)
CPC H04L 69/161 (2013.01) [H04W 76/12 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method of forwarding a congestion indication for a data network including a 3GPP access portion and a non-3GPP access portion, the method comprising:
receiving, from the 3GPP access portion, by a non-3GPP gateway function of the non-3GPP access portion, a first protocol data unit (PDU) packet including a first internet protocol (IP) header, wherein the first PDU packet is an eXtended Reality (XR) PDU packet of an XR application enabling congestion tagging at an access node of the data network;
determining, from a first field of the first IP header, a congestion marking for the XR PDU packet;
generating, a second IP header for the first PDU packet;
copying, based on the determined congestion marking, a value of the first field from the first IP header into a second field the second IP header;
adding the second IP header to the first PDU packet; and
transmitting, from the non-3GPP access portion to the data network, the first PDU packet including the first IP header and the second IP header.