US 11,659,045 B2
Data transmission method and apparatus, and readable storage medium
Xiaojuan Li, Beijing (CN); Yanzhao He, Beijing (CN); Guowei Ouyang, Beijing (CN); Hui Jin, Beijing (CN); Fenghui Dou, Beijing (CN); and Haorui Yang, Shenzhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Appl. No. 17/53,298
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
PCT Filed Jan. 31, 2019, PCT No. PCT/CN2019/074053
§ 371(c)(1), (2) Date Nov. 5, 2020,
PCT Pub. No. WO2019/214300, PCT Pub. Date Nov. 14, 2019.
Claims priority of application No. 201810437098.5 (CN), filed on May 9, 2018.
Prior Publication US 2021/0194970 A1, Jun. 24, 2021
Int. Cl. H04L 45/02 (2022.01); H04L 67/141 (2022.01); H04W 40/24 (2009.01); H04L 45/74 (2022.01)
CPC H04L 67/141 (2013.01) [H04L 45/02 (2013.01); H04L 45/74 (2013.01); H04W 40/24 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data transmission method, implemented by a terminal device, wherein the data transmission method comprises:
sending, an application platform of the terminal device, a first establishment request to a modem system of the terminal when no PDU session parameter matching the URSP rule parameter exists in a mapping table, wherein the first establishment request requests to establish the first PDU session comprises an identifier of the started application;
obtaining, by the modem system, a user equipment route selection policy (URSP) rule parameter of a started application based on the identifier of the started application in the first establishment request;
establishing, by the modem system, a first protocol data unit (PDU) session based on the URSP rule parameter of the started application by interacting with a network device when no PDU session parameter matching the URSP rule parameter exists in the mapping table of the terminal device, wherein the first PDU session corresponds to the started application;
feeding back, by the modem system, a first establishment response to the application platform, wherein the first establishment response indicates that the first PDU session is successfully established, and wherein the first establishment response comprises a first interface name of the first PDU session and a first session parameter of the first PDU session;
adding the first interface name of the first PDU session to a routing table of the terminal device;
adding a first mapping relationship to the mapping table, wherein the first mapping relationship is between the first session parameter of the first PDU session and the first interface name of the first PDU session; and
routing to-be-transmitted data of the started application to the first PDU session using the first interface name of the first PDU session.