公开(公告)号：US20220078884A1

公开(公告)日：2022-03-10

申请号：US17524971

申请日：2021-11-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dandan LIANG ,  Ming GAN ,  Xun YANG

IPC: H04W80/02 ,  H04W72/04

Abstract: This application provides 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：US20220060280A1

公开(公告)日：2022-02-24

申请号：US17517367

申请日：2021-11-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming GAN ,  Shimon SHILO ,  Xun YANG

IPC: H04L1/00 ,  H04L1/18

Abstract: This application discloses a retransmitted data sending method, a retransmitted data receiving method, and a related apparatus, and relates to the field of communications technologies. In this solution, a transmit end generates a retransmitted codeword based on information bits of each codeword corresponding to an incorrect MPDU, where the retransmitted codeword includes a codeword having some of information bits included in the incorrect MPDU. For the codeword having some of information bits included in the incorrect MPDU, the transmit end punctures a correctly received information bit in the codeword, and then sends the information bit. In this way, a receive end may directly perform combined decoding or joint decoding on an LLR of a codeword of a retransmitted MPDU and an LLR of a codeword of an MPDU that is incorrectly received last time. This improves transmission efficiency and transmission reliability.

公开(公告)号：US20210014097A1

公开(公告)日：2021-01-14

申请号：US17036996

申请日：2020-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming GAN ,  Xin ZUO ,  Xun YANG

IPC: H04L27/26

Abstract: Embodiments of this application provide information transmission methods and apparatuses. One method includes: generating, by a first communications device, a physical layer protocol data unit (PPDU) with a bandwidth of X MHz, wherein X>160, some or all fields in the PPDU are rotated in the bandwidth of X MHz by using a rotation factor sequence, the bandwidth of X MHz comprises n bandwidths of Y MHz, the rotation factor sequence comprises n rotation factors, and each of the n bandwidths corresponds to one rotation factor; and sending, by the first communications device, the PPDU to a second communications device.

公开(公告)号：US20200304268A1

公开(公告)日：2020-09-24

申请号：US16897002

申请日：2020-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunbo LI ,  Yanchun LI ,  Le LIU ,  Jiayin ZHANG ,  Ming GAN

IPC: H04L5/00 ,  H04L27/26 ,  H04W24/02 ,  H04W72/04

Abstract: The present invention discloses a method and an apparatus for indicating a channel in a wireless local area network WLAN. A sending station generates and sends a physical protocol data unit PPDU, the PPDU includes a preamble field and a data field, a high efficiency signal field HE-SIG-A of the preamble field includes a bandwidth identifier and a channel bonding identifier, and the channel bonding identifier is used to indicate whether a data transmission channel is continuous in a frequency domain. In the foregoing manner, a discontinuous channel in a frequency domain in a wireless local area network is indicated, an available channel for data transmission is improved, and a system throughput is increased.

公开(公告)号：US20200280909A1

公开(公告)日：2020-09-03

申请号：US16878336

申请日：2020-05-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming GAN ,  Dandan LIANG

IPC: H04W48/16 ,  H04W48/08

Abstract: The application provides an information indication method, including generating a first frame, where the first frame includes address information of a station operating on a frequency band of 6 GHz; and transmitting the first frame on a 2.4 GHz and/or 5 GHz frequency band.

公开(公告)号：US20200045635A1

公开(公告)日：2020-02-06

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：US20190261272A1

公开(公告)日：2019-08-22

申请号：US16397995

申请日：2019-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming GAN ,  Jia JIA ,  Jian YU ,  Xun YANG

IPC: H04W52/02 ,  H04L5/00

Abstract: This application relates to the wireless communications field and provides a frame transmission method, device, and system. The method includes: sending, by a second device, n wake-up frames to a first device, where the n wake-up frames each carry segmented content of wake-up signaling, so that a wake-up receiver of the first device wakes up a main transceiver of the first device based on the n wake-up frames, and after being woken up, the main transceiver sends, to the second device, a response frame used to indicate whether the n wake-up frames are correctly received. In this application, content of the wake-up signaling is segmented. In this case, lengths of the n wake-up frames are all relatively short, so that the wake-up receiver is easier to correctly receive each wake-up frame.

公开(公告)号：US20190230591A1

公开(公告)日：2019-07-25

申请号：US16368903

申请日：2019-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming GAN ,  Meilu LIN ,  Jia JIA ,  Xun YANG

IPC: H04W52/02

Abstract: Embodiments of the present invention disclose a state switching method and apparatus. The state switching method includes: receiving, by a first network node, a preset frame sent by a second network node, where the preset frame includes indication information used to indicate an on/off state of a main transceiver and/or a wake up receiver of the first network node immediately, after a specified time point, or within a specified time period; and controlling, by the first network node based on the indication information, to switch an on/off state of the main transceiver and/or the wake up receiver of the first network node. According to the embodiments of the present invention, energy is saved by using a preset frame to indicate an on/off state of a main transceiver and/or a wake up receiver of a network node after a specified time point or within a specified time period.

公开(公告)号：US20180124858A1

公开(公告)日：2018-05-03

申请号：US15860297

申请日：2018-01-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming GAN ,  Le LIU ,  Yunbo LI ,  Meilu LIN

IPC: H04W76/11 ,  H04L5/00 ,  H04W74/08 ,  H04L1/16

Abstract: Embodiments of the present invention provide an association establishment method and apparatus. The method includes: broadcasting, by an access point AP, a trigger frame, wherein the trigger frame is used to trigger one or more unassociated stations STAs to perform uplink data transmission and indicate one or more available subchannels for random accessing of the unassociated STAs; receiving, by the AP, one or more association request messages sent on available subchannels acquired by the unassociated STAs; broadcasting, by the AP, a multi-block acknowledgement M-BA frame, wherein the M-BA frame includes one or more pieces of association acknowledgement information and the association acknowledgement information is acknowledgement information of the association request message. In this way, the AP is associated with the unassociated stations STA, and communication reliability is ensured.

公开(公告)号：US20250070800A1

公开(公告)日：2025-02-27

申请号：US18940997

申请日：2024-11-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei LIN ,  Guido MONTORSI ,  Sergio BENEDETTO ,  Xun YANG ,  Yan XIN ,  Ming GAN ,  Mengyao MA

IPC: H03M13/11

Abstract: This application discloses an LDPC encoding and decoding method and a related apparatus. This application supports 802.11 series protocols such as Wi-Fi 8, UWB. The method includes: performing low-density parity-check LDPC encoding on an information bit sequence based on a parity check matrix, to obtain a first code word, where the parity check matrix complies with a base matrix, and the base matrix meets one of the following: Each row in the first two columns of the base matrix includes at least one 1, or the first two columns of the base matrix include “1 0” and “0 1” that alternate regularly, and “1 1” is included between “1 0” and “0 1”; and sending the first code word. The parity check matrix complies with the base matrix, which can accelerate an overall decoding convergence speed of a system.