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    Method, apparatus and storage medium for receiving a PDCCH
    12.
    发明授权
    Method, apparatus and storage medium for receiving a PDCCH 有权

    公开(公告)号：US11272452B2

    公开(公告)日：2022-03-08

    申请号：US16786085

    申请日：2020-02-10

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Sainan Li ,  Yalin Liu ,  Huang Huang

    IPC: H04W52/02 ,  H04W72/04

    Abstract: Embodiments of this application disclose a data receiving method, a data sending method, a data transmission method, and a related apparatus and system. The method includes: sending, by a network device in each transmission subwindow corresponding to a broadcast signal, the broadcast signal to user equipment by using a different antenna port, where the transmission subwindow is obtained by dividing, based on preset subwindow information, a transmission window corresponding to the broadcast signal; and determining, by the UE, a transmission subwindow in which a downlink transmit beam is located; and receiving the broadcast signal in a time in which the transmission subwindow is located, where the time in which the transmission subwindow is located is calculated based on the pre-obtained subwindow information.

    Frame synchronization method and apparatus
    14.
    发明授权
    Frame synchronization method and apparatus 有权

    公开(公告)号：US10523487B2

    公开(公告)日：2019-12-31

    申请号：US15341543

    申请日：2016-11-02

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Huang Huang ,  Xi Yan ,  Sainan Li

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

    Abstract: Embodiments of the present invention provide a frame synchronization method and apparatus, which can reduce impact of a carrier frequency offset. In those embodiment, a solution is provided and the solution includes: obtaining a received signal of a receiving antenna; calculating an auto-correlation value of the received signal and determining a time corresponding to the auto-correlation value that is of the received signal and that meets a first preset condition, as an initial estimation time; obtaining a carrier frequency offset estimation value according to the initial estimation time, the received signal, and a frequency offset estimation algorithm, and performing frequency offset compensation on the received signal by using the carrier frequency offset estimation value; calculating a cross-correlation value and an auto-correlation value of the received signal on which the frequency offset compensation has been performed. The embodiments of the present invention are used for frame synchronization.

    Method and apparatus for transmitting signal in wireless communications system
    15.
    发明授权
    Method and apparatus for transmitting signal in wireless communications system 有权

    公开(公告)号：US10523303B2

    公开(公告)日：2019-12-31

    申请号：US16154692

    申请日：2018-10-08

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Huang Huang ,  Wenxian Jiang ,  Sainan Li

    IPC: H04B7/08 ,  H04B7/06 ,  H04B7/04 ,  H04B7/0408

    Abstract: This application discloses a method and an apparatus for transmitting a signal in a wireless communications system. The method includes: sending or receiving a signal of a first beam in a first beam set within a communication time of the first beam; and sending or receiving a signal of a third beam in a second beam set within a switching gap for switching from the first beam to a second beam in the first beam set. According to the method and the apparatus for transmitting a signal in a wireless communications system in embodiments of this application, overheads can be reduced.

    Method and apparatus for obtaining system information
    18.
    发明授权
    Method and apparatus for obtaining system information 有权

    公开(公告)号：US11102714B2

    公开(公告)日：2021-08-24

    申请号：US16673068

    申请日：2019-11-04

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Sainan Li ,  Yalin Liu

    IPC: H04W48/16 ,  H04L5/00 ,  H04W48/14 ,  H04W74/00 ,  H04W74/08

    Abstract: This application provides a method and an apparatus for obtaining system information SI. The method includes: sending, by a terminal device, a first message to a network device, where the first message includes first request information used to request first system information SI; and detecting, by the terminal device, a second message and obtaining the first SI, where the second message includes information used to respond to the request of the first request information. The terminal device may send the first request information to the network device based on an actual requirement, and detect the second message on a preset time-frequency resource.

    Downlink-beam adjustment method and apparatus
    19.
    发明授权
    Downlink-beam adjustment method and apparatus 有权

    公开(公告)号：US11070264B2

    公开(公告)日：2021-07-20

    申请号：US16455786

    申请日：2019-06-28

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Sainan Li ,  Huang Huang

    IPC: H04B7/06 ,  H04W56/00 ,  H04W72/00 ,  H04W72/04

    Abstract: Embodiments can provide a downlink-beam detection method and an apparatus. Under the method a terminal device can be notified by a network device of information about a broadcast beam. The network device can receive a detection result reported by the terminal device. The detection result may pertain to broadcast beam detection performed based on the information about the broadcast beam. the network device can then determine, based on the detection result, a downlink beam that needs to be swept during downlink-beam adjustment and that is used for data communication. This reduces signaling overheads.

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