公开(公告)号：US09185692B2

公开(公告)日：2015-11-10

申请号：US13689445

申请日：2012-11-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingxin Zhang ,  Xun Yang ,  Tianyu Wu ,  Menghong Liu

IPC: H04W72/04 ,  H04L1/16 ,  H04W74/08 ,  H04B7/04 ,  H04L1/00 ,  H04W84/12

CPC classification number: H04W72/14 ,  H04B7/0452 ,  H04L1/1614 ,  H04L1/1685 ,  H04L2001/0092 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0446 ,  H04W74/0833 ,  H04W84/12

Abstract: Embodiments of the present invention disclose a method and an apparatus for retrieving transmit opportunity control in reverse direction grant, so that a conflict occurring between a case where an RD Initiator continues sending another frame to an RD Responder after retrieving TXOP control and a case where a terminal other than the RD Initiator sends a block acknowledgement to the RD Responder can be avoided. The method provided in the embodiments of the present invention includes: when an RD Initiator fails to correctly demodulate a frame sent by an RD Responder, retrieving, by the RD Initiator, TXOP control by using a PIFS if it is impossible for the RD Responder to enable an MU-MIMO mode, and retrieving, by the RD Initiator, the TXOP control by using a duration if it is possible for the RD Responder to enable the MU-MIMO mode, where the duration is longer than the PIFS.

Abstract translation: 本发明的实施例公开了一种用于在反向授权中检索发送机会控制的方法和装置，使得在RD发起者在检索TXOP控制之后继续向RD响应者发送另一帧的情况之间发生冲突，以及在 除RD启动器之外的终端发送块确认给RD响应者可以避免。 本发明实施例中提供的方法包括：当RD启动器未能正确地解调由RD响应器发送的帧时，由RD启动器检索通过使用PIFS的TXOP控制，如果RD应答器不可能 启用MU-MIMO模式，并且如果RD响应器能够启用MU-MIMO模式（其持续时间长于PIFS），则RD启动器通过使用持续时间来检索TXOP控制。

公开(公告)号：US20150146600A1

公开(公告)日：2015-05-28

申请号：US14573819

申请日：2014-12-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun Yang ,  Bin Zhen ,  Mu Zhao ,  Yanping Jiang

IPC: H04W52/02

CPC classification number: H04W52/0225 ,  H04W52/0216 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142

Abstract: The present invention provides a method and device for acquiring and transmitting data by an STA in a wireless local area network. The method includes: transmitting, by the STA, a PS-Poll, and receiving downlink data returned by the AP upon receipt of the PS-Poll, in a reserved time period within a current beacon interval according to a TIM contained in a beacon, after learning that the AP has the downlink data of the STA according to the received beacon, wherein the reserved time period is a period of time interval within the beacon interval; retransmitting, by the STA, the PS-Poll after the reserved time period to acquire the downlink data, if the STA can not successfully receive the downlink data within the reserved time period. Through the above solution, a mechanism is provided to address a situation that unsuccessful receiving/transmission of data can not be handled.

Abstract translation: 本发明提供了一种用于在无线局域网中由STA获取和发送数据的方法和装置。 该方法包括：根据包含在信标中的TIM在当前信标间隔内的保留时间段内，由STA发送PS-Poll，并且在接收到PS-Poll时接收由AP返回的下行链路数据， 在学习到AP根据接收到的信标具有STA的下行链路数据之后，其中保留的时间段是信标间隔内的一段时间间隔; 如果STA在预留时间段内无法成功接收到下行链路数据，则在保留时间段之后由STA重传PS-Poll以获取下行链路数据。 通过上述解决方案，提供了一种机制来解决数据的不成功接收/传输不能处理的情况。

公开(公告)号：US20250125907A1

公开(公告)日：2025-04-17

申请号：US18985795

申请日：2024-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guido Montorsi ,  Sergio Benedetto ,  Wei Lin ,  Xun Yang ,  Yan Xin ,  Ming Gan ,  Mengyao Ma

IPC: H04L1/00

Abstract: A method includes performing low-density parity-check (LDPC) encoding on a first bit sequence based on a parity check matrix to obtain a first data packet and sending the first data packet. The parity check matrix includes a first parity check matrix and a second parity check matrix, both the first parity check matrix and the second parity check matrix conform to a first base matrix, and a code length of the first parity check matrix is different from a code length of the second parity check matrix.

公开(公告)号：US12273804B2

公开(公告)日：2025-04-08

申请号：US18512379

申请日：2023-11-17

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W76/19 ,  H04W40/24

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 how often 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, how often 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：US20250097074A1

公开(公告)日：2025-03-20

申请号：US18965662

申请日：2024-12-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaohui Peng ,  Jiajin Luo ,  Baojian Zhou ,  Min Yan ,  Xun Yang

IPC: H04L25/02

Abstract: A communication method and a communication apparatus, wherein the method includes: A first device determines path parameter group search range information and first information, where the first information indicates K path parameter groups, and K is an integer greater than 0; and the first device sends the path parameter group search range information and the first information to a second device, where the path parameter group search range information is used to correct the K path parameter groups, and K corrected path parameter groups are used for channel estimation.

公开(公告)号：US20250048332A1

公开(公告)日：2025-02-06

申请号：US18914870

申请日：2024-10-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bin Qian ,  Zhengchun Zhou ,  Chenchen Liu ,  Yang Yang ,  Xun Yang

IPC: H04W64/00

Abstract: An ultra-wideband (UWB) signal transmission method includes that a plurality of initiators simultaneously sends a UWB signal. A UWB signal sent by any initiator is obtained by performing pulse shaping and modulation on a first sequence. The first sequence is obtained by performing a cyclic shift on a second sequence, and a number of cyclic shift bits is determined based on a shift factor and a step size of the cyclic shift that are of the any initiator. A responder determines time of arrival of the plurality of UWB signals based on the plurality of received UWB signals and the second sequence.

公开(公告)号：US12218879B2

公开(公告)日：2025-02-04

申请号：US18475022

申请日：2023-09-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Shimon Shilo ,  Leonid Epstein ,  Oded Redlich ,  Xun Yang ,  Tao Wu

IPC: H04K1/10 ,  H04L5/00 ,  H04L27/26

Abstract: A radio physical layer protocol data unit (PPDU) sending method includes: obtaining, a radio physical layer protocol data unit (PPDU), wherein the PPDU includes a high efficiency-signal field A (HE-SIG-A) and a high efficiency-signal field B (HE-SIG-B), the HE-SIG-A includes a field indicating a quantity of orthogonal frequency division multiplexing (OFDM) symbols in the HE-SIG-B, and wherein a value of the field indicates one of the following: that the quantity of OFDM symbols included in the HE-SIG-B is greater than or equal to 16, or the quantity of OFDM symbols included in the HE-SIG-B; and sending the PPDU.

公开(公告)号：US20250024559A1

公开(公告)日：2025-01-16

申请号：US18802186

申请日：2024-08-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dandan Liang ,  Ming Gan ,  Xun Yang

IPC: H04W80/02 ,  H04W72/0453

Abstract: The technology of this application relates to methods and apparatuses for sending and receiving a physical layer protocol data unit. 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, for example, 2048, of a frequency domain sequence of a short training field that is transmitted over a 160 MHz-bandwidth channel, and sending the PPDU over a target channel, where a bandwidth of the target channel is greater than 160 MHz. According to embodiments of this application, a larger actual channel bandwidth can be achieved, and backward compatibility is implemented.

公开(公告)号：US20240430002A1

公开(公告)日：2024-12-26

申请号：US18828418

申请日：2024-09-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chenchen Liu ,  Peng Liu ,  Xun Yang

IPC: H04B7/26 ,  G01S13/76

Abstract: A ranging or sensing method comprising performing clear channel assessment (CCA) on an ultra-wideband (UWB) channel to obtain first indication information, where the first indication information indicates at least two first idle time segments in one time unit; and sending at least one segment signal of a first UWB signal in a first target idle time segment in each time unit, where the first UWB signal is for performing data measurement, and the at least two first idle time segments include the first target idle time segment.

公开(公告)号：US20240306201A1

公开(公告)日：2024-09-12

申请号：US18670233

申请日：2024-05-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ziyang Guo ,  Peng Liu ,  Jiajun Luo ,  Xun Yang

IPC: H04W74/0808 ,  H04B17/309 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W74/0808 ,  H04B17/346 ,  H04L1/0003 ,  H04L5/0053

Abstract: A method includes a first device that sends a spectrum sensing request frame to a second device, where the spectrum sensing request frame requests the second device to perform spectrum sensing. The second device sends a request acknowledgment frame which, is used to acknowledge that the spectrum sensing request frame is received. The second device performs spectrum sensing based on the at least one spectrum sensing parameter, to obtain a spectrum sensing result. The second device sends a spectrum sensing feedback frame to the first device, where the spectrum sensing feedback frame is used to feed back the spectrum sensing result. The first device sends the spectrum sensing request frame, so that the second device can perform spectrum sensing based on information carried in the spectrum sensing request frame, and the first device can obtain the accurate spectrum sensing result of the second device.