公开(公告)号：US20240223339A1

公开(公告)日：2024-07-04

申请号：US18606867

申请日：2024-03-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhenzhong Wang ,  Yanjie Gu ,  Ya Liu ,  Yu Zhang

IPC: H04L5/00 ,  H04L1/1607 ,  H04L61/50 ,  H04L101/622

CPC classification number: H04L5/0053 ,  H04L1/1642 ,  H04L61/50 ,  H04L2101/622

Abstract: Disclosed are a data transmission method, apparatus, and system. The data transmission method includes: sending a first multicast frame to a plurality of terminal devices; receiving multicast block acknowledgment frames respectively sent by the plurality of terminal devices, where the multicast block acknowledgment frame sent by the terminal device includes an acknowledgment field that indicates whether the terminal device receives at least one frame included in the first multicast frame; and when determining, based on the acknowledgment field included in the multicast block acknowledgment frame sent by any terminal device in the plurality of terminal devices, that the any terminal device does not receive a target frame in the first multicast frame, resending the target frame to the plurality of terminal devices. Thus, multicast frame transmission efficiency can be improved while ensuring multicast frame transmission reliability.