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.

公开(公告)号：US20230337091A1

公开(公告)日：2023-10-19

申请号：US18341839

申请日：2023-06-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guowang Tang ,  Xianglin Gong ,  Zhenzhong Wang

IPC: H04W36/14 ,  H04W36/00

CPC classification number: H04W36/14 ,  H04W36/0038

Abstract: The technology of this application relates to a network handover method, a terminal device, and an access point device. In an example embodiment, the terminal device detects a network parameter of a first Wi-Fi network for connecting the terminal device to the access point device, the terminal device initiates scanning when the network parameter meets a preset condition, and the terminal device obtains authentication information of a second Wi-Fi network if the terminal device obtains the second Wi-Fi network of the access point device through scanning and the terminal device is associated with the second Wi-Fi network, where service set identifiers SSIDs of the second Wi-Fi network and the first Wi-Fi network are different. The terminal device accesses the second Wi-Fi network, and the second Wi-Fi network reuses an established protocol stack link between the terminal device and the first Wi-Fi network for communication.

公开(公告)号：US20250133552A1

公开(公告)日：2025-04-24

申请号：US19000020

申请日：2024-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yonghao Zhao ,  Wei Ruan ,  Zhenzhong Wang ,  Shuqi Wang ,  Ju Yan Pan ,  Tharindu Samith Abeywickrama

IPC: H04W72/0453 ,  H04W84/12

Abstract: A sensing method and apparatus, to combine a sub-7 GHz frequency band and an mmWave frequency band for Wi-Fi sensing, and improve performance of sensing a Wi-Fi signal. The method includes: receiving a plurality of first communication data frames in the first frequency band and a plurality of second communication data frames in the second frequency band, where a frequency of the first frequency band is higher than a frequency of the second frequency band; and obtaining a plurality of pairs of communication data frames, where each of the plurality of pairs of communication data frames includes a first communication data frame in the first plurality of communication data frames and a second communication data frame in the second plurality of communication data frames, and a time difference between a first timestamp of the first communication data frame and a second timestamp of the second communication data frame falls within a preset threshold range.