公开(公告)号：US20230097165A1

公开(公告)日：2023-03-30

申请号：US17957563

申请日：2022-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yu ,  Weimin Wu ,  Jing Dai

IPC: H04B7/06

Abstract: A channel state information feedback method and an apparatus to flexibly feed back channel state information, to implement balance between feedback overheads and feedback precision of the channel state information. The method includes sending a media access control (MAC) frame, where the MAC frame includes a processing mode bitmap, every n bits in the processing mode bitmap correspond to one feedback unit, and a value of the n bits is used to indicate a processing mode of channel state information of the corresponding feedback unit; and receiving a beamforming report, where the beamforming report includes one or more feedback fields, each feedback field corresponds to one feedback unit, the feedback field includes channel state information of the corresponding feedback unit, and the channel state information included in the feedback field is processed in a processing mode indicated by the processing mode bitmap.

公开(公告)号：US11452042B2

公开(公告)日：2022-09-20

申请号：US16475628

申请日：2017-06-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meilu Lin ,  Ming Gan ,  Yuchen Guo ,  Xun Yang ,  Yun Liu ,  Jian Yu

IPC: H04W52/02 ,  H04B7/06 ,  H04L27/26

Abstract: This application provides a method for transmitting a wake-up packet in a communications system and a device. The communications system includes a transmit end device and a receive end device. The receive end device includes a wake-up receiver and a main transceiver. The method includes: sending, by the transmit end device, a first wake-up packet WUP to the wake-up receiver by using a first data rate; determining, by the transmit end device, a second data rate; and sending, by the transmit end device, a second WUP to the wake-up receiver by using the second data rate. The transmit end device can determine a proper data rate for sending a wake-up packet based on a specific transmission condition in a communication process, thereby improving transmission efficiency of the wake-up packet.

公开(公告)号：US11452036B2

公开(公告)日：2022-09-20

申请号：US16397711

申请日：2019-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun Zhou ,  Meilu Lin ,  Jian Yu ,  Xiao Han ,  Yunbo Li ,  Ming Gan

IPC: H04W52/02 ,  H04L1/00 ,  H04W24/10 ,  H04W72/04 ,  H04W36/26 ,  H04L5/00 ,  H04W36/00

Abstract: A first station generates indication information of any one of an operating channel, an operating band, or an operating channel and an operating band of a wake-up receiver in a second station. The first station sends the indication information, so that the wake-up receiver in the second station works on the indicated operating channel or the indicated operating band. The first station controls the operating channel or the operating band of the wake-up receiver in the second station by generating the indication information.

公开(公告)号：US20220077979A1

公开(公告)日：2022-03-10

申请号：US17455470

申请日：2021-11-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yu ,  Oded Redlich

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/06

Abstract: In a method, a PPDU is generated, where the PPDU includes resource allocation information, and the resource allocation information is related to a channel bitmap in a beacon frame; and the PPDU is sent. According to the resource allocation indication method and apparatus provided in the embodiments of this application, an unavailable channel is indicated through an indication of the PPDU, so that a receive end can be prevent from performing transmission on the unavailable channel.

公开(公告)号：US20220022197A1

公开(公告)日：2022-01-20

申请号：US17488974

申请日：2021-09-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanfan Zhang ,  Yanjie Gu ,  Jian Yu

IPC: H04W72/08 ,  H04W24/02 ,  H04W48/16

Abstract: A WI-FI communication method is applied to a communication system including a first device and a second device, and the first device communicates with the second device using at least two configurable channel links. The method includes sending, by the first device, link indication information to the second device, where the link indication information is used to indicate link attributes of the at least two channel links, receiving, by the first device, a first configuration indication fed back by the second device in response to the link indication information, and configuring, by the first device, transmission modes of non-control frames on the at least two channel links based on the first configuration indication.

公开(公告)号：US11218351B2

公开(公告)日：2022-01-04

申请号：US16912258

申请日：2020-06-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yu ,  Ming Gan ,  Yunbo Li

IPC: H04L27/26 ,  H04L25/02 ,  H04L27/20

Abstract: This application relates to the field of wireless communication, and in particular, to a multi-channel hybrid transmission technology. In an embodiment, a data transmission method comprises: generating, by a first wireless communications device, a physical protocol data unit (PPDU), wherein the PPDU comprises a legacy short training field (L-STF), a legacy long training field (L-LTF), a legacy signal field (L-SIG), and two signature symbols after the L-SIG in a time-domain, and wherein the two signature symbols are identical and are modulated based on binary phase shift keying (BPSK), the two signature symbols identify a wireless communications standard the PPDU complies with; and transmitting, by the first wireless communications device, the PPDU to a second wireless communications device.

公开(公告)号：US20210273837A1

公开(公告)日：2021-09-02

申请号：US17324826

申请日：2021-05-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yu ,  Shimon Shilo ,  Genadiy Tsodik ,  Oded Redlich ,  Yaron Ben-Arie ,  Doron Ezri ,  Ming Gan

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04L25/02 ,  H04L27/20 ,  H04W72/04

Abstract: A midamble indication method includes sending, by a first device, midamble indication information to a second device. A duration of a midamble indicated by the midamble indication information is greater than or equal to a threshold. The threshold is related to a processing capability of the second device. In a midamble receiving method, the second device receives the midamble according to the indication information.

公开(公告)号：US20210266054A1

公开(公告)日：2021-08-26

申请号：US17314422

申请日：2021-05-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yu ,  Weimin Wu ,  Jing Dai

IPC: H04B7/06

Abstract: A channel state information feedback method and an apparatus to flexibly feed back channel state information, to implement balance between feedback overheads and feedback precision of the channel state information. The method includes: sending a media access control (MAC) frame, where the MAC frame includes a processing mode bitmap, every n bits in the processing mode bitmap correspond to one feedback unit, and a value of the n bits is used to indicate a processing mode of channel state information of the corresponding feedback unit; and receiving a beamforming report, where the beamforming report includes one or more feedback fields, each feedback field corresponds to one feedback unit, the feedback field includes channel state information of the corresponding feedback unit, and the channel state information included in the feedback field is processed in a processing mode indicated by the processing mode bitmap.

公开(公告)号：US20210105667A1

公开(公告)日：2021-04-08

申请号：US17126414

申请日：2020-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunbo Li ,  Jian Yu ,  Ming Gan

IPC: H04W28/20 ,  H04L5/00 ,  H04L25/03 ,  H04W72/04

Abstract: When a first device is an EHT site, a second device generates a frame in a first non-HT format or a frame in a first non-HT duplicated format, where at least three bits in the first seven bits of a scrambling sequence of the frame in the first non-HT format or the frame in the first non-HT duplicated format indicate a bandwidth mode of a channel; or when a first device is a VHT site or an HE site that does not support an EHT, a second device generates a frame in a second non-HT format or a frame in a second non-HT duplicated format, where two bits in the first seven bits of a scrambling sequence of the frame in the second non-HT format or the frame in the second non-HT duplicated format indicate a bandwidth mode of a channel.

公开(公告)号：US10893472B2

公开(公告)日：2021-01-12

申请号：US16047724

申请日：2018-07-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo Li ,  Mao Yang ,  Jian Yu

IPC: H04W52/02 ,  H04W72/04 ,  H04W74/00 ,  H04L5/00 ,  H04W74/08 ,  H04W88/08 ,  H04W84/12

Abstract: The present invention relates to the communications field, and in particular, to a method, an access point, and a station for data transmission in a wireless local area network, so as to reduce energy consumption in a data transmission process. In the invention, the STA may not listen to a trigger frame after receiving the first indication information, and wakes up at the first target wakeup moment. In addition, after waking up, the STA does not miss time for listening to the target trigger frame. This reduces energy consumption in a data transmission process.