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    Satellite communication method and apparatus
    11.
    发明授权
    Satellite communication method and apparatus 有权

    公开(公告)号：US12120566B2

    公开(公告)日：2024-10-15

    申请号：US17704733

    申请日：2022-03-25

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Jianwei Zhou ,  Hejia Luo ,  Chenlei Xu ,  Xiaolu Wang

    IPC: H04W36/06 ,  H04W56/00 ,  H04W72/0446 ,  H04W72/21

    CPC classification number: H04W36/06 ,  H04W56/003 ,  H04W72/0446 ,  H04W72/21

    Abstract: This application provides example satellite communication methods and example apparatuses. One example method includes receiving, by a terminal device, first information sent by a satellite, where the first information indicates a first timing change rate range. The terminal device can then measure a downlink timing change rate to obtain a first downlink timing change rate. The terminal device can then determine a first uplink timing change rate based on the first downlink timing change rate and the first timing change rate range. The terminal device can then perform uplink communication with the satellite based on the first uplink timing change rate.

    TIMING OFFSET PARAMETER UPDATE METHOD, DEVICE, AND SYSTEM
    12.
    发明公开
    TIMING OFFSET PARAMETER UPDATE METHOD, DEVICE, AND SYSTEM 审中-公开

    公开(公告)号：US20230217397A1

    公开(公告)日：2023-07-06

    申请号：US18182164

    申请日：2023-03-10

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Jianwei Zhou ,  Ying Chen ,  Xiaolu Wang ,  Chenlei Xu ,  Hejia Luo ,  Yunfei Qiao

    IPC: H04W56/00

    CPC classification number: H04W56/0045

    Abstract: Embodiments of this application relate to the field of communication technologies, and provide a timing offset parameter update method, a device, and a system, to help reduce signaling overheads when a terminal device updates a value of a timing offset parameter. The method includes: A terminal device obtains a timing advance adjustment variation corresponding to the terminal device, where the timing advance adjustment variation is a difference between a timing advance adjustment amount currently used by the terminal device and a timing advance adjustment amount used at a previous moment. The terminal device determines whether an absolute value of the timing advance adjustment variation is greater than or equal to a first threshold. If the absolute value is greater than or equal to the first threshold, the terminal device sends, to a network device, first indication information used to indicate an update regularity of a timing offset parameter.

    Network switching method and apparatus
    14.
    发明授权
    Network switching method and apparatus 有权

    公开(公告)号：US12267741B2

    公开(公告)日：2025-04-01

    申请号：US17738810

    申请日：2022-05-06

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Jianwei Zhou ,  Hejia Luo ,  Chenlei Xu ,  Xiaolu Wang ,  Jun Wang

    IPC: H04W36/32 ,  H04W36/00 ,  H04W36/14

    Abstract: The present disclosure relates to network switching methods and apparatuses. In one example method, a beam that currently provides a service for a terminal device is a first beam. The first beam is generated by a first network device. The first network device obtains user information of the terminal device, and obtains switching information based on the user information. After the first network device sends the switching information to the terminal device, the terminal device can perform beam switching based on the switching information.

    Satellite communication method and apparatus
    15.
    发明授权
    Satellite communication method and apparatus 有权

    公开(公告)号：US12166569B2

    公开(公告)日：2024-12-10

    申请号：US18176642

    申请日：2023-03-01

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Chenlei Xu ,  Hejia Luo ,  Jianwei Zhou ,  Xiaolu Wang ,  Jun Wang

    IPC: H04B7/204 ,  H04B7/06 ,  H04W52/02

    Abstract: This application provides a satellite communication method and apparatus. A terminal obtains a level-1 broadcast signal from a satellite, where a beam status corresponding to the level-1 broadcast signal is an energy saving state, and the level-1 broadcast signal includes synchronization information. The terminal obtains a level-2 broadcast signal from the satellite, where a beam status corresponding to the level-2 broadcast signal is a broadband communication state. The terminal communicates with the satellite based on the level-2 broadcast signal.

    Communication method and apparatus
    16.
    发明授权
    Communication method and apparatus 有权

    公开(公告)号：US12143956B2

    公开(公告)日：2024-11-12

    申请号：US17825817

    申请日：2022-05-26

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Xiaolu Wang ,  Hejia Luo ,  Chenlei Xu ,  Jianwei Zhou ,  Rong Li

    IPC: H04W56/00 ,  H04W16/28 ,  H04W36/00 ,  H04W84/06

    Abstract: Example communication methods and apparatus are described. In one example method, a terminal receives a first information by using a serving beam, where the first information indicates a delay compensation parameter corresponding to a target beam. The target beam and the serving beam are different beams. The terminal determines, based on a full timing advance and the delay compensation parameter corresponding to the target beam, a differential timing advance corresponding to the target beam.

    Transmission method and apparatus
    17.
    发明授权
    Transmission method and apparatus 有权

    公开(公告)号：US12108375B2

    公开(公告)日：2024-10-01

    申请号：US17704555

    申请日：2022-03-25

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Jianwei Zhou ,  Chenlei Xu ,  Hejia Luo ,  Xiaolu Wang

    IPC: H04W72/0453 ,  H04W72/20

    CPC classification number: H04W72/0453 ,  H04W72/20

    Abstract: The disclosure provides transmission methods and apparatuses. One example includes sending control signaling to a terminal device, to indicate the terminal device to send a physical uplink shared channel (PUSCH) on a first frequency band; and receiving the PUSCH sent by the terminal device on the first frequency band. The first frequency band includes at least one guard subcarrier. A quantity of the at least one guard subcarrier is determined based on a Doppler frequency shift of a beam covering the terminal device. The first frequency band is located on a frequency band corresponding to the beam.

    Data processing method and apparatus, and storage medium
    19.
    发明授权
    Data processing method and apparatus, and storage medium 有权

    公开(公告)号：US12302404B2

    公开(公告)日：2025-05-13

    申请号：US17707299

    申请日：2022-03-29

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Xiaolu Wang ,  Hejia Luo ,  Chenlei Xu ,  Jianwei Zhou ,  Rong Li

    IPC: H04W74/0833 ,  H04L43/0864 ,  H04W74/00 ,  H04W74/08 ,  H04W72/23

    Abstract: This disclosure provides data processing methods. One example including a network device obtains target information that includes a transmission delay difference corresponding to a target beam or a target cell; determines a first preamble format based on the transmission delay difference, and then determines first configuration information used to indicate the first preamble format and a first set of random access occasions included in a random access period, where an interval between random access times included in the first set of random access occasions is greater than or equal to a preamble length corresponding to the first preamble format; and generates a corresponding first configuration index based on the first configuration information. The preamble formats required for different beams or cells can be determined based on transmission delay differences corresponding to the different beams or cells, and then configuration information of a random access occasion is further determined.

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