US 12,363,772 B2
Data transmission method, device, and system
Yong Hu, Shenzhen (CN); and Qi Yao, Beijing (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Feb. 17, 2023, as Appl. No. 18/170,736.
Application 18/170,736 is a continuation of application No. 16/804,515, filed on Feb. 28, 2020, granted, now 11,612,013.
Application 16/804,515 is a continuation of application No. PCT/CN2018/101465, filed on Aug. 21, 2018.
Claims priority of application No. 201710758372.4 (CN), filed on Aug. 29, 2017; and application No. 201810890123.5 (CN), filed on Aug. 7, 2018.
Prior Publication US 2023/0209655 A1, Jun. 29, 2023
Int. Cl. H04W 76/12 (2018.01); H04W 60/00 (2009.01); H04W 76/11 (2018.01); H04W 80/10 (2009.01); H04W 84/12 (2009.01)
CPC H04W 76/12 (2018.02) [H04W 60/00 (2013.01); H04W 76/11 (2018.02); H04W 80/10 (2013.01); H04W 84/12 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A data transmission method comprising:
receiving, by a user plane network element, from a first terminal, and through an uplink path corresponding to the first terminal, a data packet comprising addressing information of a second terminal, wherein the first terminal and the second terminal subscribe to a same mobile local area network (MLAN) and correspond to a same user plane function entity;
determining, by the user plane network element based on information about the uplink path, a label of the MLAN , wherein the information about the uplink path comprises a first tunnel identifier of the user plane function entity that is allocated for the first terminal;
determining, by the user plane network element based on the label and the addressing information, information about a downlink path corresponding to the second terminal, wherein the information about the downlink path comprises a second tunnel identifier of an access device that is allocated for the second terminal; and
sending, by the user plane network element, to the second terminal, through the downlink path, and based on the information about the downlink path , the data packet.