公开(公告)号：US11902887B2

公开(公告)日：2024-02-13

申请号：US17959034

申请日：2022-10-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Guogang Huang ,  Yiqing Li ,  Yifan Zhou ,  Mengshi Hu ,  Dandan Liang

IPC: H04W4/00 ,  H04W48/16 ,  H04W48/08 ,  H04W84/12

CPC classification number: H04W48/16 ,  H04W48/08 ,  H04W84/12

Abstract: Embodiments of this application provide an access point (AP) multi-link device discovery method and a related apparatus, for example, in a wireless local area network (WLAN) supporting IEEE 802.11be. In an example method, a reporting AP sends a first management frame to a station. The first management frame carries information about a reported AP. The reporting AP is affiliated with an AP multi-link device. The reported AP is affiliated with the same multi-link device as the reporting AP. Or the reported AP belongs to a same multiple basic service set identifier (BSSID) set as another AP in the multi-link device with which the reporting AP is affiliated.

公开(公告)号：US11902065B2

公开(公告)日：2024-02-13

申请号：US18173285

申请日：2023-02-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xin Zuo ,  Ming Gan ,  Dandan Liang

IPC: H04L27/26

CPC classification number: H04L27/2602 ,  H04L27/2692 ,  H04L27/2695

Abstract: The application provides a short training sequence design method and apparatus. The method includes: determining a short training sequence, where the short training sequence may be obtained based on an existing sequence, and the short training sequence with comparatively good performance may be obtained through simulation calculation, for example, by adjusting a parameter; and sending a short training field on a target channel, where the short training field is obtained by performing inverse fast Fourier transformation IFFT on the short training sequence, and a bandwidth of the target channel is greater than 160 MHz.

公开(公告)号：US11882522B2

公开(公告)日：2024-01-23

申请号：US17345528

申请日：2021-06-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiao Han ,  Yuchen Guo ,  Jian Yu ,  Dandan Liang

IPC: G08C17/00 ,  H04W52/02 ,  H04W16/02

CPC classification number: H04W52/0248 ,  H04W16/02

Abstract: This application provides an information transmission method and a communication apparatus. The method includes: A first device sends TWT resource configuration information in a first BSS to a second device. The first device is located in the first BSS, the second device is located in a second BSS, and the first BSS and the second BSS at least partially overlap. According to the information transmission method provided in this application, TWT resource configuration information in a plurality of BSSs is shared among the plurality of BSSs in an OBSS scenario. Therefore, collision can be further avoided during data transmission in different BSSs in the OBSS scenario, thereby improving quality and assurance of data transmission between devices in the plurality of BSSs, and improving efficiency of data transmission in the OBSS scenario.

公开(公告)号：US20230421333A1

公开(公告)日：2023-12-28

申请号：US18365841

申请日：2023-08-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yu ,  Yuchen Guo ,  Chenchen Liu ,  Yunbo Li ,  Ming Gan ,  Dandan Liang

IPC: H04L5/00

CPC classification number: H04L5/0057

Abstract: A method includes: An access point generates an NDPA frame, where the NDPA frame includes a station information field, and the station information field includes an AID subfield indicating an association identifier AID of a station; the station information field further includes a partial bandwidth information subfield; the partial bandwidth information subfield indicates an RU that is in a bandwidth corresponding to the NDPA frame and for which the station needs to feed back channel state information; and the bandwidth corresponding to the NDPA frame is greater than 160 MHz. The access point transmits the NDPA frame.

公开(公告)号：US11817980B2

公开(公告)日：2023-11-14

申请号：US17856112

申请日：2022-07-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dandan Liang ,  Ming Gan ,  Xun Yang

IPC: H04L27/26

CPC classification number: H04L27/2602 ,  H04L27/2692

Abstract: A method and an apparatus for transmitting a physical layer protocol data unit that can provide a short training field sequence for a larger channel bandwidth. The short training field sequence has a smaller peak-to-average power ratio PAPR and better performance. The method includes: generating a physical layer protocol data unit PPDU, where the PPDU includes a short training field, a length of a frequency domain sequence of the short training field is greater than a first length, and the first length is a length of a frequency domain sequence of a short training field of a PPDU transmitted on a channel with a bandwidth of 160 MHz; and sending the PPDU on a target channel, where a bandwidth of the target channel is greater than 160 MHz.

公开(公告)号：US20230354160A1

公开(公告)日：2023-11-02

申请号：US18340018

申请日：2023-06-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W48/08 ,  H04L1/1607 ,  H04W52/02

CPC classification number: H04W48/08 ,  H04L1/1614 ,  H04W52/0209

Abstract: Embodiments of this application provide a communication method between multi-link devices and an apparatus, and relate to the field of communications technologies, to reduce power consumption of a station multi-link device. The method includes: a multi-link device includes a plurality of STAs, one STA operates on one of a plurality of links, and the STA determines a primary link in the plurality of links. A STA operating on the primary link in the multi-link device may receive information sent by the AP indicating whether the STA operating on the primary link has a downlink traffic, and/or information indicating whether a STA operating on a link other than the primary link has a downlink traffic. Therefore, the STA operating on the primary link may determine a link on which the STA having a downlink traffic operates in the multi-link device.

公开(公告)号：US11765009B2

公开(公告)日：2023-09-19

申请号：US17856112

申请日：2022-07-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dandan Liang ,  Ming Gan ,  Xun Yang

IPC: H04L27/26

CPC classification number: H04L27/2602 ,  H04L27/2692

Abstract: A method and an apparatus for transmitting a physical layer protocol data unit that can provide a short training field sequence for a larger channel bandwidth. The short training field sequence has a smaller peak-to-average power ratio PAPR and better performance. The method includes: generating a physical layer protocol data unit PPDU, where the PPDU includes a short training field, a length of a frequency domain sequence of the short training field is greater than a first length, and the first length is a length of a frequency domain sequence of a short training field of a PPDU transmitted on a channel with a bandwidth of 160 MHz; and sending the PPDU on a target channel, where a bandwidth of the target channel is greater than 160 MHz.

公开(公告)号：US20230188309A1

公开(公告)日：2023-06-15

申请号：US18165837

申请日：2023-02-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunbo Li ,  Jian Yu ,  Chenchen Liu ,  Ming Gan ,  Dandan Liang ,  Yuchen Guo

IPC: H04L5/00 ,  H04W72/0457

CPC classification number: H04L5/0098 ,  H04L5/0048 ,  H04W72/0457

Abstract: A bandwidth mode indication method and apparatus are provided, and relate to the field of communication technologies. The method includes: A transmit end sends a first frame to a receive end, where the first frame includes a service field, the service field includes a first field, the first field indicates whether a bandwidth mode indication field carried in the first frame is allowed to indicate a target bandwidth mode, and the target bandwidth mode includes one or more of bandwidth modes other than 20 MHz, 40 MHz, 80 MHz, and 80+80 MHz or 160 MHz.

公开(公告)号：US11589389B2

公开(公告)日：2023-02-21

申请号：US17181536

申请日：2021-02-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dandan Liang ,  Ming Gan ,  Xin Zuo ,  Yunbo Li

IPC: H04W74/08 ,  H04L69/22 ,  H04W72/12

Abstract: Example methods and apparatus for implementing collision detection in data transmission are described, One example method includes sending a data packet including collision detection information to a receive end, where the collision detection information is used by the receive end to perform collision detection on the data packet. A status indication message sent by the receive end is received by the receive end when sending the data packet. The receive end parses the status indication message. If the status indication message includes collision information, the receive end perform retransmission of the data packet.

公开(公告)号：US20220141785A1

公开(公告)日：2022-05-05

申请号：US17573768

申请日：2022-01-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Yifan Zhou ,  Dandan Liang ,  Guogang Huang ,  Xun Yang

IPC: H04W56/00 ,  H04W76/15

Abstract: Embodiments of this disclosure disclose a multi-link communication method and a related apparatus. In a scenario in which simultaneous transmission and reception over a plurality of links is not supported, a multi-link device first sends a first physical layer protocol data unit (PPDU) over a first link, and then sends a second PPDU over a second link through channel contention, where an end time of the second PPDU is not later than an end time of the first PPDU. The method not only ensures fairness of multi-link access, but also can reduce an idle rate of the plurality of links.