US 12,225,615 B2
Signaling handovers of terminals between user plane function network elements
Yuan Wang, Shanghai (CN); and Zhongping Chen, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Dec. 29, 2020, as Appl. No. 17/136,944.
Application 17/136,944 is a continuation of application No. PCT/CN2019/093385, filed on Jun. 27, 2019.
Claims priority of application No. 201810704891.7 (CN), filed on Jun. 30, 2018.
Prior Publication US 2021/0120620 A1, Apr. 22, 2021
Int. Cl. H04W 76/25 (2018.01); H04W 8/08 (2009.01); H04W 8/26 (2009.01); H04W 76/11 (2018.01)
CPC H04W 76/25 (2018.02) [H04W 8/08 (2013.01); H04W 8/26 (2013.01); H04W 76/11 (2018.02)] 21 Claims
OG exemplary drawing
 
1. A communication method comprising:
obtaining, by a session management network element, first session identifier information for a terminal device and comprising a tunnel endpoint identifier;
obtaining, by the session management network element from a source user plane function network element, an address of the terminal device, wherein the address of the terminal device is a media access control (MAC) address of the terminal device, and wherein the terminal device is handed over from the source user plane function network element to a new user plane function network element;
generating, by the session management network element, a packet transmission rule indicating to the new user plane function network element how to transmit an Ethernet packet and comprising a correspondence between the first session identifier information and the MAC address of the terminal device; and
sending, by the session management network element to the new user plane function network element, the packet transmission rule,
wherein the first session identifier information indicates a first session channel of the new user plane function network element.