公开(公告)号：US11177924B2

公开(公告)日：2021-11-16

申请号：US16897002

申请日：2020-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunbo Li ,  Yanchun Li ,  Le Liu ,  Jiayin Zhang ,  Ming Gan

IPC: H04L5/00 ,  H04L27/26 ,  H04W24/02 ,  H04W72/04 ,  H04W84/12 ,  H04W48/12 ,  H04B7/0452

Abstract: The present invention discloses a method and an apparatus for indicating a channel in a wireless local area network WLAN. A sending station generates and sends a physical protocol data unit PPDU, the PPDU includes a preamble field and a data field, a high efficiency signal field HE-SIG-A of the preamble field includes a bandwidth identifier and a channel bonding identifier, and the channel bonding identifier is used to indicate whether a data transmission channel is continuous in a frequency domain. In the foregoing manner, a discontinuous channel in a frequency domain in a wireless local area network is indicated, an available channel for data transmission is improved, and a system throughput is increased.

公开(公告)号：US11133856B2

公开(公告)日：2021-09-28

申请号：US16735038

申请日：2020-01-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanchun Li ,  Mengyao Ma

IPC: H04W4/00 ,  H04B7/06 ,  H04B7/0491 ,  H04B7/08

Abstract: In an ISS process, the initiator sends a first SSW frame in different sector directions by sequentially using an antenna in m antennas, where m is not less than 1 and is less than or equal to N; and in an RSS process, the initiator receives a second SSW frame in a parallel (e.g., simultaneous) omnidirectional manner by using M antennas, where the second SSW frame is sent by a responder in different sector directions, each second SSW frame carries information used to indicate a first SSW frame with best quality in the ISS process, and the M antennas include at least the m antennas, and determines an optimal transmit beam in the ISS process based on the received second SSW frame.

公开(公告)号：US12225466B2

公开(公告)日：2025-02-11

申请号：US17750127

申请日：2022-05-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mao Yang ,  Bo Li ,  Yanchun Li

IPC: H04W52/02 ,  H04W72/12 ,  H04W72/23 ,  H04W48/10 ,  H04W74/00 ,  H04W84/12

Abstract: This application discloses a scheduling method, an access point, and a station. The method includes: generating, by an access point AP, a first frame, where the first frame includes reservation information of each of at least one trigger frame, a first trigger frame is any one of the at least one trigger frame, and reservation information of the first trigger frame includes an identifier of the first trigger frame, start time of the first trigger frame, and a constraint condition of a station STA corresponding to the first trigger frame; and broadcasting, by the AP, the first frame to at least one STA. Therefore, by using the method provided in the present invention, dynamic network changes can be supported through unified scheduling of the AP, and this is favorable to coordination between the AP and the STA, thereby better reducing power consumption of the STA.

公开(公告)号：US20240291618A1

公开(公告)日：2024-08-29

申请号：US18658311

申请日：2024-05-08

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L5/00 ,  H04W80/02 ,  H04W84/12

CPC classification number: H04L5/0053 ,  H04W80/02 ,  H04W84/12

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.

公开(公告)号：US12003454B2

公开(公告)日：2024-06-04

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 ,  H04W84/12

CPC classification number: H04L5/0053 ,  H04W80/02 ,  H04W84/12

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.

公开(公告)号：US20230276489A1

公开(公告)日：2023-08-31

申请号：US18312432

申请日：2023-05-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanchun Li ,  Yunbo Li

IPC: H04W74/00 ,  H04W74/08 ,  H04W72/20 ,  H04L5/00 ,  H04W28/20 ,  H04W72/0446 ,  H04W92/20

CPC classification number: H04W74/002 ,  H04W74/0816 ,  H04W72/20 ,  H04L5/0055 ,  H04W28/20 ,  H04W72/0446 ,  H04W74/0808 ,  H04W92/20

Abstract: A communication method, an access point and a station are provided. The method includes: receiving, by an access point, a sending request sent by a first station, and sending clear to send information to the first station; when the access point receives feedback information sent by the first station, allocating, by the access point, a channel to the first station, and allocating a channel to a second station based on remaining bandwidth; generating a first trigger frame, and sending the first trigger frame to the first station and the second station; and receiving uplink data sent by the first station and the second station. According to the application, bandwidth utilization of the access point and data transmission efficiency can be improved.

公开(公告)号：US11646779B2

公开(公告)日：2023-05-09

申请号：US17485924

申请日：2021-09-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanchun Li ,  Mengyao Ma

IPC: H04W4/00 ,  H04B7/06 ,  H04B7/0491 ,  H04B7/08

CPC classification number: H04B7/0695 ,  H04B7/0491 ,  H04B7/0617 ,  H04B7/0684 ,  H04B7/088

Abstract: In an ISS process, the initiator sends a first SSW frame in different sector directions by sequentially using an antenna in m antennas, where m is not less than 1 and is less than or equal to N, and in an RSS process, the initiator receives a second SSW frame in a parallel (e.g., simultaneous) omnidirectional manner by using M antennas, where the second SSW frame is sent by a responder in different sector directions, each second SSW frame carries information used to indicate a first SSW frame with best quality in the ISS process, and the M antennas include at least the m antennas, and determines an optimal transmit beam in the ISS process based on the received second SSW frame.

公开(公告)号：US11071168B2

公开(公告)日：2021-07-20

申请号：US15717267

申请日：2017-09-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mao Yang ,  Zhongjiang Yan ,  Yanchun Li

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

Abstract: In the present disclosure, an access point obtains a current network feature and generates a matching rule and an access rule, so that a station performs uplink access according to the matching rule and the access rule. This resolves a prior-art problem of reduced quality of service of a high-priority service because in an EDCA protocol, when there are relatively many low-priority service nodes, the high-priority service has difficulty in obtaining a resource through contention, or a conflict occurs between a low-priority packet and a high-priority packet. Effects of ensuring quality of service and user experience are achieved.

公开(公告)号：US10925057B2

公开(公告)日：2021-02-16

申请号：US16173878

申请日：2018-10-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanchun Li ,  Bo Li ,  Qiao Qu

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

Abstract: A channel selection method and a transmit end are provided. 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.

公开(公告)号：US10554269B2

公开(公告)日：2020-02-04

申请号：US15440687

申请日：2017-02-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanchun Li ,  Yunbo Li

IPC: H04L12/00 ,  H04B7/0456 ,  H04W74/00 ,  H04W74/08

Abstract: Embodiments provide an access method and a device, where the method includes: determining that N second receiving devices communicate with a second sending device by using a radio resource, where N is a positive integer greater than or equal to 1; obtaining a receive effective channel vector from each second receiving device to a first sending device; obtaining a transmit antenna spatial correlation matrix of the first sending device; determining M transmit vectors; and separately communicating, by the first sending device, with K first receiving devices by using K of the M transmit vectors, where K is a positive integer less than or equal to M. According to the foregoing technical solutions, in a case in which the radio resource has been occupied by the second receiving device, the first sending device can send data by using the radio resource.