US 12,407,615 B2
Methods and apparatus for session steering to application servers
Kaippallimalil Mathew John, Carrollton, TX (US); Khosrow Tony Saboorian, Plano, TX (US); and Zhixian Xiang, Frisco, TX (US)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Nov. 4, 2022, as Appl. No. 17/981,068.
Application 17/981,068 is a continuation of application No. PCT/US2021/023322, filed on Mar. 19, 2021.
Claims priority of provisional application 63/019,754, filed on May 4, 2020.
Prior Publication US 2023/0096469 A1, Mar. 30, 2023
Int. Cl. H04L 47/20 (2022.01); H04L 45/74 (2022.01); H04L 47/2441 (2022.01)
CPC H04L 47/20 (2013.01) [H04L 45/74 (2013.01); H04L 47/2441 (2013.01)] 33 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a control plane (CP) from an application function (AF), a traffic influence routing rule comprising a service address representing a destination address of a route to an application server, the traffic influence routing rule specifying a breakout rule for packets of a communicating device addressed to the application server, wherein the breakout rule indicates whether to break out the packets to a local packet data unit (PDU) session anchor (PSA) or forward the packets to a central PSA;
storing, by the CP, the traffic influence routing rule in a policy control function (PCF); and
generating, by the CP, a traffic filter for packets of at least one traffic flow associated with the communicating device, the traffic filter directing the packets of the at least one traffic flow that are addressed to the application server to the service address, the traffic filter being generated in accordance with the traffic influence routing rule.