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    Method and apparatus for determining time offset
    1.
    发明授权
    Method and apparatus for determining time offset 有权

    公开(公告)号：US10742469B2

    公开(公告)日：2020-08-11

    申请号：US16038163

    申请日：2018-07-17

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Tao Ouyang ,  Syed Habib Rahman ,  Xiaoshu Si ,  Fan Wang ,  Hao Lei

    IPC: H04L27/26 ,  H04L7/00 ,  H04W56/00

    Abstract: A method and an apparatus for determining a time offset are disclosed. The method includes: obtaining, by a device at a head end, a time-domain signal based on a received signal; and then determining a time offset based on values of peak-to-average ratios of a preset quantity of symbols starting from a qth symbol in the time-domain signal, where a peak-to-average ratio of the qth symbol is greater than a preset threshold. A new method for determining a time offset is provided, and takes advantages that the time-domain signal obtained by the device at the head end has stronger capabilities of resisting interference such as frequency offset and phase noise. The method for determining a time offset can be applied both to initial ranging and periodic ranging.

    METHOD, SYSTEM, AND APPARATUS FOR SENDING SIGNALING PACKET IN COORDINATED MANNER
    2.
    发明申请
    METHOD, SYSTEM, AND APPARATUS FOR SENDING SIGNALING PACKET IN COORDINATED MANNER 有权

    公开(公告)号：US20240389150A1

    公开(公告)日：2024-11-21

    申请号：US18787561

    申请日：2024-07-29

    Applicant: Huawei Technologies Co, Ltd.

    Inventor： Yunman Chen ,  Minda Ding ,  Xiaoshu Si

    IPC: H04W74/0816 ,  H04B17/318 ,  H04W52/36

    Abstract: This application relates to the field of communication technologies, and discloses a method, a system, and an apparatus. The control node sends a first indication message in a current periodicity, where the first indication message is used to coordinate a first network node and a second network node to send signaling packets, where the coordination uses any one of the following manners: simultaneous sending, sending at a time interval less than a specified value, or sending at a time interval greater than a time interval required by a signaling packet sent earlier.

    Wi-Fi Communication Method and Electronic Device
    5.
    发明申请
    Wi-Fi Communication Method and Electronic Device 有权

    公开(公告)号：US20230036718A1

    公开(公告)日：2023-02-02

    申请号：US17965901

    申请日：2022-10-14

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiaoshu Si ,  Xiang Wang ,  Ying Li

    IPC: H04W74/08 ,  H04L5/16 ,  H04L5/00

    Abstract: This application relates to the field of communications technologies, and discloses a Wi-Fi communication method and an electronic device. The method includes the following steps: An AP device is connected to a first device by using a target channel. The AP device supports full-duplex communication. On this basis, when the target channel is idle, the AP device sends a control message to the first device by using the target channel, where the control message includes a time period in which the AP device occupies the target channel. The first device determines, based on the time period, a time for sending a first data frame, where the sending time is in the time period. Then the first device sends the first data frame to the AP device at the sending time by using the target channel.

    Signal Processing Method and System
    6.
    发明申请
    Signal Processing Method and System 有权

    公开(公告)号：US20210218427A1

    公开(公告)日：2021-07-15

    申请号：US17193212

    申请日：2021-03-05

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Zhixiong Ren ,  Xiaoshu Si ,  Tao Ouyang ,  Pere L. Gilabert ,  Jose Angel Garcia Garcia ,  Gabriel Montoro

    IPC: H04B1/04 ,  H03F3/24 ,  H03F1/32 ,  H03F1/42

    Abstract: A signal processing method and system includes a baseband signal baseband signal processing module configured to perform slow envelope processing on a first signal, to obtain an envelope value E(n) of the first signal on which the slow envelope processing has been performed, obtain a phase value θ(n) based on E(n), where θ(n) and E(n) are in a linear relationship, and separate the first signal into a second signal and a third signal based on θ(n), where a phase difference between the second signal and the third signal is 2 θ(n), an amplifier configured to amplify the second signal and the third signal, and a synthesizer is configured to combine the amplified second signal and third signal to obtain a fourth signal.

    Decoding Method and Decoder for Low-Density Parity-Check Code
    8.
    发明申请
    Decoding Method and Decoder for Low-Density Parity-Check Code 审中-公开

    公开(公告)号：US20180269900A1

    公开(公告)日：2018-09-20

    申请号：US15982503

    申请日：2018-05-17

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jiaqi Fan ,  Xiaoshu Si

    IPC: H03M13/11

    CPC classification number: H03M13/112 ,  H03M13/1117 ,  H03M13/1137 ,  H03M13/116 ,  H03M13/6508 ,  H04L1/00

    Abstract: A decoding method and a decoder for a low-density parity-check (LDPC) code, where the method includes dividing, by a decoder, an LDPC code C whose bit length is n into k LDPC codes D={D1,D2,K, Dk-1, Dk}, arranging, by the decoder, Di, i=1, 2, K, k−1, k by column to obtain transpose codes DT={D1T,D2T,K, Dk-1T, DkT} of the LDPC codes D, performing cyclic shift on DiT, i=1, 2, K, k−1, k by row according to values of corresponding elements in a target check matrix to obtain shift codes E={E1,E2,K,Et-1,Et}, where t is equal to a quantity of rows of the target check matrix, obtaining, by the decoder, t*m groups of LDPC subcodes F1, F2,K, Ftm-1, Ftm according to the shift codes E and a bit length d of the decoder, where Ej is divided into groups, Ej={(Ej)1d,(Ej)d+12d,K,(Ej)(m-2)d+1(m-1)d,(Ej)(m-1)d+1md}={F(j-1)m+1,F(j-1)m+1,K,Fjm-1,Fjm}, and m=┌l/d┐, and decoding, by the decoder, the m groups of LDPC subcodes to obtain a decoding result of the LDPC code C.

    Signal processing method and system
    9.
    发明授权
    Signal processing method and system 有权

    公开(公告)号：US11411587B2

    公开(公告)日：2022-08-09

    申请号：US17193212

    申请日：2021-03-05

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Zhixiong Ren ,  Xiaoshu Si ,  Tao Ouyang ,  Pere L Gilabert ,  Jose Angel Garcia Garcia ,  Gabriel Montoro

    IPC: H04B1/04 ,  H03F1/32 ,  H03F1/42 ,  H03F3/24

    Abstract: A signal processing method and system includes a baseband signal baseband signal processing module configured to perform slow envelope processing on a first signal, to obtain an envelope value E(n) of the first signal on which the slow envelope processing has been performed, obtain a phase value θ(n) based on E(n), where θ(n) and E(n) are in a linear relationship, and separate the first signal into a second signal and a third signal based on θ(n), where a phase difference between the second signal and the third signal is 2 θ(n), an amplifier configured to amplify the second signal and the third signal, and a synthesizer is configured to combine the amplified second signal and third signal to obtain a fourth signal.

    Decoding method and decoder for low-density parity-check code
    10.
    发明授权
    Decoding method and decoder for low-density parity-check code 有权

    公开(公告)号：US10484009B2

    公开(公告)日：2019-11-19

    申请号：US15982503

    申请日：2018-05-17

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jiaqi Fan ,  Xiaoshu Si

    IPC: H03M13/11 ,  H03M13/00 ,  H04L1/00

    Abstract: A decoding method and a decoder for a low-density parity-check (LDPC) code, where the method includes dividing, by a decoder, an LDPC code C whose bit length is n into k LDPC codes D={D1,D2,K,Dk-1,Dk}, arranging, by the decoder, Di, i=1,2,K,k−1,k by column to obtain transpose codes DT={D1T,D2T,K,Dk-1T,DkT} of the LDPC codes D, performing cyclic shift on DiT,i=1,2,K,k−1,k by row according to values of corresponding elements in a target check matrix to obtain shift codes E={E1,E2,K,Et-1,Et}, where t is equal to a quantity of rows of the target check matrix, obtaining, by the decoder, t*m groups of LDPC subcodes F1,F2,K,Ftm-1,Ftm according to the shift codes E and a bit length d of the decoder, where Ej is divided into m groups, Ej={(Ej)1d,(Ej)d+12d,K,(Ej)(m-2)d+1(m-1)d,(Ej)(m-1)d+1md}={F(j-1)m+1,F(j-1)m+2,K,Fjm-1,Fjm}, and m=┌l/d┐, and decoding, by the decoder, the m groups of LDPC subcodes to obtain a decoding result of the LDPC code C.

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