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    Communication method and apparatus
    1.
    发明授权
    Communication method and apparatus 有权

    公开(公告)号：US11962527B2

    公开(公告)日：2024-04-16

    申请号：US17241689

    申请日：2021-04-27

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Min Yan ,  Guangjian Wang ,  Wei Lin ,  Mengyao Ma ,  Yanchun Li

    IPC: H04L5/00 ,  H04L27/26

    CPC classification number: H04L5/0048 ,  H04L27/26134

    Abstract: A communications apparatus includes a processor configured to generate a radio frame. The radio frame comprises a data block. The data block comprises a plurality of N pilot blocks, a plurality of M sub-data blocks, and one guard interval (GI). Every two N pilot blocks of the plurality of N pilot blocks are not adjacent. The GI is located at a tail end of the data block, 4≤N≤8, N is an integer, M≥N−1, and M is an integer. The communications apparatus also includes transceiver configured to send the radio frame to a receiver.

    Channel access method and apparatus
    4.
    发明授权
    Channel access method and apparatus 有权

    公开(公告)号：US11523466B2

    公开(公告)日：2022-12-06

    申请号：US16729107

    申请日：2019-12-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yunbo Li ,  Yanchun Li ,  Yi Luo

    IPC: H04W84/12 ,  H04W74/08 ,  H04J11/00

    Abstract: A channel access process method in a wireless local area network is provided. The method includes: generating, by a station, a backoff counter value; then performing, by the station, a backoff operation after receiving a first trigger frame, where the backoff operation includes: deducting, from the backoff counter value, a quantity N of subchannels for random access, to obtain a new backoff counter value; and when the new backoff counter value is 0 or a negative number, randomly selecting, by the station, one subchannel from the subchannels for random access, and then accessing the subchannel to send an uplink frame. The present application further provides a corresponding channel access apparatus. Applying the method and the apparatus of the embodiments of the present application improves system access efficiency and avoids a waste of system resources.

    Access method and apparatus
    5.
    发明授权
    Access method and apparatus 有权

    公开(公告)号：US11317439B2

    公开(公告)日：2022-04-26

    申请号：US16017021

    申请日：2018-06-25

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Yanchun Li ,  Yuchen Guo ,  Yunbo Li ,  Xun Yang

    IPC: H04W74/08 ,  H04W4/00 ,  H04L5/00 ,  H04W28/06 ,  H04W72/08 ,  H04W72/12 ,  H04W74/00 ,  H04W72/04

    Abstract: Embodiments of the present invention provide an access method, including: sending, to an access point, a first frame that carries uplink transmission requirement information; and if a second frame that carries information about an uplink transmission resource is received from the access point within agreed time period, sending uplink multi-user transmission data to the access point, where the uplink multi-user transmission data is transmitted on the uplink transmission resource; or if the second frame is not received within an agreed time period, accessing, by a station, a channel in a contention access manner that is based on carrier sense CSMA/CA. According to the method provided in the embodiments of the present invention, a channel access manner can be managed, a congestion degree of a system can be decreased, and channel utilization can be increased.

    SIGNAL FIELD INDICATION METHOD AND APPARATUS
    6.
    发明申请
    SIGNAL FIELD INDICATION METHOD AND APPARATUS 有权

    公开(公告)号：US20210135826A1

    公开(公告)日：2021-05-06

    申请号：US17144476

    申请日：2021-01-08

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jian Yu ,  Oded Redlich ,  Leonid Epstein ,  Shimon Shilo ,  Genadiy Tsodik ,  Yanchun Li

    IPC: H04L5/00 ,  H04W80/02

    Abstract: A signal field indication method and apparatus are provided. The method includes: generating, by a transmit end, a PPDU, where the PPDU includes a SIG-A indication field, and the SIG-A indication field includes at least one of a field used to indicate a number of SIG-A information symbols and a field used to indicate a SIG-A information bandwidth; and sending, by the transmit end, the PPDU. According to the method provided in this application, the transmit end may indicate different numbers of SIG-A information symbols and/or different SIG-A information bandwidths.

    Data transmission method and station
    8.
    发明授权
    Data transmission method and station 有权

    公开(公告)号：US10588133B2

    公开(公告)日：2020-03-10

    申请号：US16008656

    申请日：2018-06-14

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yunbo Li ,  Ming Gan ,  Yanchun Li ,  Xiao Han

    IPC: H04W72/04 ,  H04W28/06 ,  H04L1/16 ,  H04W74/08 ,  H04W84/12

    Abstract: Embodiments of the present invention provide a data transmission method and a station. The method includes: transmitting, by a station, data of a primary access category (AC) of the station within a current transmission opportunity (TXOP), where to-be-transmitted data of the station includes the data of the primary AC and data of at least one secondary AC; after transmission of the data of the primary AC is completed, determining, by the station, whether there is remaining time in the TXOP; and if there is remaining time in the TXOP, transmitting, by the station, the data of the at least one secondary AC within the remaining time. According to the method provided in the embodiments of the present invention, the current TXOP is fully utilized without a channel resource wasted, thereby improving data transmission efficiency of the station.

    Channel selection method and transmit end
    9.
    发明授权
    Channel selection method and transmit end 有权

    公开(公告)号：US10278182B2

    公开(公告)日：2019-04-30

    申请号：US15446871

    申请日：2017-03-01

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yanchun Li ,  Bo Li ,  Qiao Qu

    IPC: H04W16/10 ,  H04W24/02 ,  H04W72/04 ,  H04W40/00 ,  H04W72/06 ,  H04W74/08

    Abstract: Embodiments provide a channel selection method and a transmit end, and the method includes: ranking multiple channels, and generating a backoff count value; sequentially decrementing, from an initial timeslot, the backoff count value in each timeslot according to a ranking sequence of the channels and busy/idle states of all the channels until the backoff count value is 0; and selecting, from the multiple channels according to a result of the decrement performed on the backoff count value and a busy/idle state of at least one of the multiple channels, a channel that is used by the transmit end for sending data. The method and the transmit end can improve channel utilization.

    POSITIONING METHOD AND COMMUNICATION APPARATUS
    10.
    发明申请
    POSITIONING METHOD AND COMMUNICATION APPARATUS 有权

    公开(公告)号：US20250048323A1

    公开(公告)日：2025-02-06

    申请号：US18920453

    申请日：2024-10-18

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Ganghua Yang ,  Xu Li ,  Yibo Lv ,  Rui Ni ,  Yanchun Li

    IPC: H04W64/00

    Abstract: A first device receives a first signal sent by a second device, receives a second signal sent by a third device, and determines a first length based on first time, second time, and delay duration. The first time is time at which the first device receives the first signal. The second time is time at which the first device receives the second signal. The first length is a distance from an intersection point of a first straight line on which a terminal device is located and a first transmission line between a first network device and a second network device to the second network device, and the first straight line is perpendicular to the first transmission line.

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