US 11,757,746 B2
Communication method, apparatus, and system
Fang Yu, Shenzhen (CN); Feng Yu, Beijing (CN); and Yan Li, Beijing (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Feb. 25, 2022, as Appl. No. 17/681,420.
Application 17/681,420 is a continuation of application No. PCT/CN2019/103902, filed on Aug. 31, 2019.
Prior Publication US 2022/0182304 A1, Jun. 9, 2022
Int. Cl. H04L 43/0829 (2022.01); H04L 67/61 (2022.01); H04L 47/2425 (2022.01); H04L 67/141 (2022.01); H04L 69/322 (2022.01)
CPC H04L 43/0829 (2013.01) [H04L 47/2425 (2013.01); H04L 67/141 (2013.01); H04L 67/61 (2022.05); H04L 69/322 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A communication method, comprising:
obtaining, by a first device, packet loss statuses of a service flow on a first link and a second link, wherein a protocol data unit (PDU) session of a terminal is anchored to an anchor user plane gateway through an access network device, a user plane path between the terminal and the anchor user plane gateway comprises the first link and the second link, the first link is a user plane data link for communication between the terminal and the access network device, and the second link is a user plane data link for communication between the access network device and the anchor user plane gateway, and wherein the first device is the access network device or the anchor user plane gateway;
determining, by the first device, a quantity of consecutive lost packets of the service flow on the user plane path based on the packet loss statuses of the service flow on the first link and the second link; and
in response to the quantity of consecutive lost packets of the service flow on the user plane path reaching a first threshold, triggering, by the first device, enabling of a high-reliability transmission procedure for the service flow.