公开(公告)号：US20230262772A1

公开(公告)日：2023-08-17

申请号：US18306973

申请日：2023-04-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunbo Li ,  Ming Gan ,  Yuchen Guo ,  Yiqing Li ,  Guogang Huang

IPC: H04W74/08

CPC classification number: H04W74/0816

Abstract: In a channel listening method, a non-simultaneous transmit and receive multi-link device (NSTR MLD) receives a first response frame on a first link and a second response frame on a second link, wherein an end time of the first response frame is later than an end time of the second response frame, and the first link and the second link belong to a NSTR link pair. The NSTR MLD determines that at least one of the first response frame and the second response frame fails to be received. In response to the determination, the NSTR MLD performs channel listening in a first interframe space after the first response frame ends, wherein a duration of the first interframe space is less than or equal to a duration of a point coordination function interframe space (PIFS).

公开(公告)号：US20230261849A1

公开(公告)日：2023-08-17

申请号：US18308442

申请日：2023-04-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Yiqing Li ,  Chenchen Liu ,  Yunbo Li ,  Yuchen Guo ,  Jian Yu ,  Xun Yang

IPC: H04L5/00 ,  H04W72/0457 ,  H04W28/20

CPC classification number: H04L5/0092 ,  H04L5/0044 ,  H04W72/0457 ,  H04W28/20 ,  H04W84/12

Abstract: This application relates to the wireless communications field, for example, is applicable to a wireless local area network supporting the 802.11be standard, and in particular, to a PPDU uplink bandwidth indication method and a related apparatus. The method includes: An AP generates and sends a trigger frame. The trigger frame carries first indication information, where the first indication information directly indicates or jointly indicates an EHT TB PPDU bandwidth or an uplink PPDU total transmission bandwidth. The trigger frame carries second indication information, where the second indication information indicates distribution of an HE TB PPDU and/or an EHT TB PPDU in the uplink PPDU total transmission bandwidth, or directly indicate whether an EHT station transmits an HE TB PPDU or an EHT TB PPDU.

公开(公告)号：US20230247703A1

公开(公告)日：2023-08-03

申请号：US18295270

申请日：2023-04-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guogang Huang ,  Yuchen Guo ,  Yunbo Li ,  Ming Gan

IPC: H04W76/15

CPC classification number: H04W76/15

Abstract: A multi-link reconfiguration method and apparatus relate to the field of communications technologies are provided to reconfigure a link between two MLDs. The method includes: A first MLD generates a first frame, where the first frame is used to reconfigure a link between the first MLD and a second MLD. The first MLD sends the first frame to the second MLD.

公开(公告)号：US20230209518A1

公开(公告)日：2023-06-29

申请号：US18176263

申请日：2023-02-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunbo Li ,  Yuchen Guo ,  Ming Gan ,  Guogang Huang

IPC: H04W72/0446

CPC classification number: H04W72/0446

Abstract: A communication method and apparatus are disclosed, and relate to the field of communication technologies. One type of radio frame is provided to meet different use requirements for a time resource in a plurality of application scenarios, so that the radio frame is universal. The communication method includes: A first device generates a first frame. The first frame includes a first field and a second field. The first field indicates a duration of a first time resource. The second field indicates a purpose of the first time resource. The purpose of the first time resource includes: The first time resource is used to transmit a single-user PPDU, or the first time resource is used to perform frame exchange. The first device sends the first frame to a second device.

公开(公告)号：US20230082270A1

公开(公告)日：2023-03-16

申请号：US17981857

申请日：2022-11-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuchen Guo ,  Ming Gan ,  Yunbo Li

IPC: H04W74/08 ,  H04L5/00 ,  H04W76/15

Abstract: A communication method, includes: a first station in a multi-link station device obtain a channel on a first link through contention, and obtain a transmit opportunity (TXOP) on the first link; and the first station ends the TXOP before target sending time of a beacon frame of a second station, wherein the first station and the second station are stations of the multi-link station device, and when the first station performs sending or receiving, the second station is not capable of performing receiving or sending.

公开(公告)号：US20230021262A1

公开(公告)日：2023-01-19

申请号：US17946719

申请日：2022-09-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guogang Huang ,  Yunbo Li ,  Ming Gan ,  Yuchen Guo

IPC: H04W76/15 ,  H04L1/16

Abstract: This application discloses a multi-link establishment method and a related device. A multi-link association response frame carries radio bitmap information, to indicate an AP allowed to be associated with a radio of a STA MLD or a link allowed to be established by using a radio of a STA MLD, so that the radio subsequently switches between different APs or links. The multi-link association response frame carries link establishment status information, to indicate a link establishment status of each link that the STA MLD requests to establish, so that multi-link establishment is more flexible. The multi-link association response frame carries reassociation information, to indicate whether each parameter in association configuration information is reserved, so that a problem that signaling overheads are relatively large due to a reassociation operation is avoided. It can be learned that, in the multi-link establishment method, the foregoing information is carried to improve multi-link establishment flexibility.

公开(公告)号：US11476986B2

公开(公告)日：2022-10-18

申请号：US17100266

申请日：2020-11-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen Guo

IPC: H04L5/00 ,  H04W72/04 ,  H04W52/14 ,  H04W84/12

Abstract: This application provides a spatial reuse method and apparatus based on multi-access point (AP) coordination, and a system. In the method, a first access point AP sends a radio frame including identification information to a second access point AP. The identification information is used to indicate the second access point AP to perform spatial reuse during uplink data transmission performed by at least one first station associated with the first access point. The second access point sends a downlink frame to at least one second station based on the identification information. Through coordination between access points APs, the first AP may configure a spatial reuse transmission opportunity for another specific AP to perform spatial reuse transmission, so that a transmission time in the spatial reuse transmission opportunity is fully used, thereby avoiding a conflict and improving transmission efficiency.

公开(公告)号：US20220321301A1

公开(公告)日：2022-10-06

申请号：US17848388

申请日：2022-06-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yu ,  Yuchen Guo ,  Xun Yang ,  Dandan Liang ,  Yunbo Li ,  Ming Gan

IPC: H04L5/00 ,  H04W48/16 ,  H04W48/08 ,  H04B7/06

Abstract: A channel sounding method and an apparatus are provided. The method includes a first access point device sending a sounding request frame to a second access point device, the sounding request frame requesting the second access point device perform channel sounding, the sounding request frame includes one or both of a sounding bandwidth field or a number of spatial streams field, the sounding bandwidth field indicating a bandwidth for performing the channel sounding, the number of spatial streams field indicating a quantity of spatial streams on which the channel sounding is performed.

公开(公告)号：US11324044B2

公开(公告)日：2022-05-03

申请号：US16371787

申请日：2019-04-01

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.

公开(公告)号：US11316630B2

公开(公告)日：2022-04-26

申请号：US17007424

申请日：2020-08-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen Guo ,  Chenyu Huang ,  Qian Zhang

IPC: G06F11/00 ,  H04L5/00 ,  H04B17/318 ,  G16Y30/00 ,  H04W52/02

Abstract: Embodiments of the present disclosure provide an internet of things-based communication method, which applied to the field of communications technologies to resolve a problem of a short battery life of an internet of things device caused by frequent movement of an internet of things device. The method includes: receiving, by a second access point, a data packet from an internet of things device, where the data packet carries an identifier of an access point coordinating cluster; and sending, by the second access point, a first acknowledgment message to the internet of things device; or sending, by the second access point to a first access point, the data packet and signal strength of the data packet received by the second access point.