US 12,035,141 B2
Policy control method, device, and system
Xiaoyun Zhou, Nanjing (CN); and Shufeng Shi, Xi'an (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Jan. 25, 2022, as Appl. No. 17/583,786.
Application 17/583,786 is a continuation of application No. PCT/CN2020/093959, filed on Jun. 2, 2020.
Claims priority of application No. 201910684221.8 (CN), filed on Jul. 26, 2019.
Prior Publication US 2022/0150706 A1, May 12, 2022
Int. Cl. H04W 12/37 (2021.01); H04L 9/40 (2022.01); H04W 28/08 (2023.01)
CPC H04W 12/37 (2021.01) [H04L 63/0227 (2013.01); H04W 28/0967 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A policy control method, comprising:
receiving, by a session management network element, from a policy control network element, local area network (LAN) traffic steering information corresponding to a first application, wherein the LAN traffic steering information comprises at least one piece of steering location information, wherein each piece of the at least one piece of the steering location information comprises one or more pieces of application location information of the first application, and wherein the one or more pieces of application location information of the first application are associated with an identifier associated with a LAN in which a local application server for the first application is deployed;
selecting, by the session management network element, one or more user plane network elements based on the LAN traffic steering information according to at least a portion of the one or more pieces of application location information;
determining policy rules corresponding to each user plane network element of the one or more user plane network elements based on at least traffic steering policy information corresponding to the application location information, wherein the policy rules are associated with steering, to a local application server for the first application in a target LAN, data of the first application sent by an upstream network element, wherein the policy rules are further associated with sending data processed by the local application server for the first application in the target LAN to a downstream network element, and wherein the target LAN is a LAN corresponding to each user plane network element of the one or more user plane network elements; and
sending, by the session management network element, the corresponding policy rules to each user plane network element of the one or more user plane network elements.