公开(公告)号：US11917565B2

公开(公告)日：2024-02-27

申请号：US17529723

申请日：2021-11-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Xin Zuo ,  Xun Yang

IPC: H04L67/145 ,  H04W56/00 ,  H04W52/02 ,  H04W72/0446 ,  H04L47/80 ,  H04L49/201 ,  H04B17/20 ,  H04H20/02 ,  H04W52/28

CPC classification number: H04W56/001 ,  H04B17/255 ,  H04L47/806 ,  H04L49/201 ,  H04L67/145 ,  H04W52/0229 ,  H04W72/0446 ,  H04W74/0808 ,  H04H20/02 ,  H04W52/0238 ,  H04W52/28

Abstract: This application provides a channel access indication method and device. The method includes: receiving, by a first communications device, a channel synchronization request sent by a second communications device, where the channel synchronization request is used to request the first communications device to send a synchronization frame to the second communications device, and a wake-up receiver is configured for the second communications device; and according to the channel synchronization request and a time at which the second communications device is woken up and that is learned by the first communications device based on preset signaling, sending, by the first communications device when a channel is idle, the synchronization frame to the woken-up second communications device, where the synchronization frame is used to instruct the woken-up second communications device to access the channel after receiving the synchronization frame.

公开(公告)号：US11838086B2

公开(公告)日：2023-12-05

申请号：US17497969

申请日：2021-10-10

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Kaifeng Xia ,  Ming Gan ,  Xin Zuo ,  Xun Yang

IPC: H04B7/06

CPC classification number: H04B7/0684 ,  H04B7/0667

Abstract: In a method of sending a frame using a cyclic shift diversity (CSD) sequence, a wireless device generates a frame comprising a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signal (L-SIG) field, a repeated legacy signal (RL-SIG) field, an extremely high throughput signal A (EHT-SIG A) field, and an extremely high throughput signal B (EHT-SIG B) field. The wire device sends the frame through a set of transmit antennas by performing cyclic shift over the fields according to a CSD sequence. The number of transmit antennas is greater than 8. The number of cyclic shift diversities in the CSD sequence is equal to a number of the transmit antennas, and each cyclic shift diversity has a value that is a multiple of 12.5.

公开(公告)号：US20230379012A1

公开(公告)日：2023-11-23

申请号：US18366406

申请日：2023-08-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meihong Zhang ,  Rui Du ,  Chenchen Liu ,  Yingxiang Sun ,  Xiao Han ,  Xun Yang

IPC: H04B7/0417 ,  H04B7/0452

CPC classification number: H04B7/0417 ,  H04B7/0452 ,  H04B7/0626

Abstract: A method includes: A first device sends a first BRP frame, to indicate a second device to evaluate a variation of CSI from the first device to the second device in an initiator beam refinement protocol transmit sector sweep procedure. The first device sends a plurality of first BRP-TX PPDUs, where the plurality of first BRP-TX PPDUs are used to evaluate the variation of the CSI from the first device to the second device. The first device receives a second BRP frame carrying a first sector information list, where the first sector information list is used to feed back one or more sending sectors whose variation of the CSI from the first device to the second device is greater than a CSI variation threshold.

公开(公告)号：US20230344749A1

公开(公告)日：2023-10-26

申请号：US18338326

申请日：2023-06-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W40/24 ,  H04L45/16 ,  H04W72/121

CPC classification number: H04L45/16 ,  H04W40/24 ,  H04W72/121

Abstract: This application is applicable to a multi-link group addressed traffic transmission method and an apparatus. A first access point (AP) of an AP multi-link device (MLD) sends group addressed traffic indication information indicating whether each AP of other APs of the AP MLD has a group addressed traffic, so that a station (STA) can learn whether the multiple APs have a group addressed traffic. In this way, each STA of the STAMLD does not need to listen to each AP whether each AP has a group addressed traffic. This reduces power consumption of the STA MLD. This application may be applied to a wireless local area network system that supports an IEEE 802.11ax next-generation Wi-Fi EHT protocol, for example, 802.11 series protocols such as 802.11be.

公开(公告)号：US20230328666A1

公开(公告)日：2023-10-12

申请号：US18333563

申请日：2023-06-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W56/00 ,  H04W76/15

CPC classification number: H04W56/0005 ,  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.

公开(公告)号：US20230268969A1

公开(公告)日：2023-08-24

申请号：US18151287

申请日：2023-01-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yu ,  Xun Yang ,  Ming Gan ,  Meilu Lin ,  Peter Loc

IPC: H04B7/06 ,  H04W24/10 ,  H04L1/1607 ,  H04W24/00 ,  H04B7/0413 ,  H04L1/00

CPC classification number: H04B7/0626 ,  H04W24/10 ,  H04L1/1607 ,  H04W24/00 ,  H04B7/0413 ,  H04L1/0026 ,  H04L1/0073 ,  H04W84/12

Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting channel state information. The method includes: sending a feedback indication message, a high-efficiency long training sequence, and a resource scheduling message, wherein the feedback indication message is used to indicate more than one target STAs that need to feed back channel state information, the high-efficiency long training sequence is used for determining the channel state information by the target STAs, and the first resource scheduling message is used to indicate a communication resource used by the target STAs when the target STAs feed back the channel state information; and receiving the channel state information sent by the target STAs by using the communication resource.

公开(公告)号：US20230168372A1

公开(公告)日：2023-06-01

申请号：US18160466

申请日：2023-01-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rui Du ,  Wen Tong ,  Xiao Han ,  Mingjie Dong ,  Danny Kai Pin Tan ,  Yingxiang Sun ,  Xiaohui Peng ,  Xun Yang

IPC: G01S15/89 ,  G01S7/41

CPC classification number: G01S15/8979 ,  G01S7/414

Abstract: A method for sensing sneezing based on a wireless signal includes obtaining a wireless signal, where the wireless signal propagates in space including a first object. Doppler estimation is performed on the wireless signal, to obtain Doppler information of the wireless signal. The Doppler information of the wireless signal may be used for indicating impact of the first object on a frequency of the wireless signal. Whether the first object is sneeze droplets is determined based on the Doppler information of the wireless signal.

公开(公告)号：US20230071851A1

公开(公告)日：2023-03-09

申请号：US17988579

申请日：2022-11-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L45/16 ,  H04W40/24 ,  H04W72/12

Abstract: This application is applicable to a multi-link group addressed traffic transmission method and an apparatus. A first access point (AP) of an AP multi-link device (MLD) sends group addressed traffic indication information indicating whether each AP of other APs of the AP MLD has a group addressed traffic, so that a station (STA) can learn whether the multiple APs have a group addressed traffic. In this way, each STA of the STA MLD does not need to listen to each AP whether each AP has a group addressed traffic. This reduces power consumption of the STA MLD. This application may be applied to a wireless local area network system that supports an IEEE 802.11ax next-generation Wi-Fi EHT protocol, for example, 802.11 series protocols such as 802.11be.

公开(公告)号：US20230050803A1

公开(公告)日：2023-02-16

申请号：US17965457

申请日：2022-10-13

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W40/24 ,  H04W76/19

Abstract: This application provides a communications method and a communications apparatus. A first station in a first multi-link device sends first information to a second multi-link device, where the first information is used to indicate a frequency at which a station in a power saving mode in the first multi-link device receives a beacon frame. In this way, the second multi-link device may learn about, based on the first information, a frequency at which a station in the first multi-link device receives a beacon frame, thereby helping the second multi-link device effectively manage a cache service of each station in the first multi-link device and manage a data buffer space.

公开(公告)号：US11533681B2

公开(公告)日：2022-12-20

申请号：US17077689

申请日：2020-10-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yingpei Lin ,  Jiayin Zhang ,  Xun Yang

IPC: H04W48/20 ,  H04W40/24 ,  H04W84/12 ,  H04B17/318 ,  H04L5/00 ,  H04W24/02 ,  H04W72/12 ,  H04W74/08 ,  H04W88/02 ,  H04W88/08

Abstract: A method for accessing an access point by a station device, a device, and a system. A station device selects a master access point from multiple access points according to channel quality and accesses the master access point, and sends information about remaining access points to the master access point, so that the master access point selects a slave access point according to the information about the remaining access points.