公开(公告)号：US20230262775A1

公开(公告)日：2023-08-17

申请号：US18164278

申请日：2023-02-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

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

CPC classification number: H04W74/0825 ,  H04L69/22 ,  H04W74/0816 ,  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：US20220029687A1

公开(公告)日：2022-01-27

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

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：US20210168005A1

公开(公告)日：2021-06-03

申请号：US17158758

申请日：2021-01-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xin Zuo ,  Ming Gan ,  Dandan Liang

IPC: H04L27/26

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：US12028901B2

公开(公告)日：2024-07-02

申请号：US18164278

申请日：2023-02-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W74/0808 ,  H04L69/22 ,  H04W72/12 ,  H04W74/0816

CPC classification number: H04W74/0825 ,  H04L69/22 ,  H04W72/12 ,  H04W74/0816

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：US20240056157A1

公开(公告)日：2024-02-15

申请号：US18495791

申请日：2023-10-27

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: A method for selecting a cyclic shift diversity sequence, and a related apparatus are disclosed. The method includes: sending a frame by using a cyclic shift diversity (CSD) sequence, comprising: generating a frame, wherein the frame comprises a first data subframe conforming to a first communication mechanism and a third data subframe conforming to the first communication mechanism; sending the frame, wherein the first data subframe and the third data subframe are sent by using a cyclic shift diversity sequence. Under an EHT standard, a preferred cyclic shift diversity sequence can be obtained through selection from massive combinations of CSD values. Work efficiency is improved, and an operation burden is reduced.

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：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：US11483121B2

公开(公告)日：2022-10-25

申请号：US17072589

申请日：2020-10-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jingjing Huang ,  Ming Gan ,  Xin Zuo

IPC: H04L5/14 ,  H04B1/12

Abstract: This application provides a full-duplex self-interference weakening method and a full-duplex self-interference weakening system. The full-duplex self-interference weakening method includes: separately receiving, by a first port of a dual-polarized receive antenna and a second port of the dual-polarized receive antenna, a signal sent by a transmit antenna and adjusting and combining the signal received by the first port of the dual-polarized receive antenna and/or the signal received by the second port of the dual-polarized receive antenna, to weaken interference caused by the transmit antenna to the dual-polarized receive antenna. The full-duplex self-interference weakening method and the full-duplex self-interference weakening system provided in this application resolve a problem that a quantity of antennas and an antenna location are limited in an existing antenna interference cancelation method.

公开(公告)号：US20220131728A1

公开(公告)日：2022-04-28

申请号：US17644392

申请日：2021-12-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xin Zuo ,  Ming Gan ,  Dandan Liang

IPC: H04L27/26

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：US11197253B2

公开(公告)日：2021-12-07

申请号：US16575539

申请日：2019-09-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Xin Zuo ,  Xun Yang

IPC: H04W56/00 ,  H04W52/02 ,  H04W72/04 ,  H04W74/08 ,  H04L12/927 ,  H04L12/931 ,  H04H20/02 ,  H04W52/28

Abstract: 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.