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    Communications device and method in high-frequency system
    11.
    发明授权
    Communications device and method in high-frequency system 有权

    公开(公告)号：US10743197B2

    公开(公告)日：2020-08-11

    申请号：US16057488

    申请日：2018-08-07

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jia He ,  Ziming Yu ,  Minghui Xu

    IPC: H04W16/00 ,  H04W16/28 ,  H04W8/00 ,  H04L5/00 ,  H04W56/00 ,  H04W72/04 ,  H04W48/16 ,  H04W64/00

    Abstract: A communications device in a high-frequency system, including: a scan module, configured to use a single beam for each space S region in a to-be-scanned sector of a cell to poll or cover all time T regions in the S region in a time-division manner, and send a synchronization sequence to user equipment in the T region by using a preset frame structure; and a determining module, configured to receive a sequence that is fed back by the user equipment, determine a location of the user equipment according to the sequence, and determine, according to the location of the user equipment, a serving beam for a base station to communicate with the user equipment, to confirm that scanning for the user equipment is completed. The embodiments of the present invention further provide a scanning method in a high-frequency system.

    Communication method, base station, and user equipment
    12.
    发明授权
    Communication method, base station, and user equipment 有权

    公开(公告)号：US10461835B2

    公开(公告)日：2019-10-29

    申请号：US15826656

    申请日：2017-11-29

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Huang Huang ,  Xianfeng Du ,  Minghui Xu

    IPC: H04B7/08 ,  H04B17/309 ,  H04B7/06 ,  H04W56/00 ,  H04W72/02 ,  H04W72/04 ,  H04W72/12 ,  H04W72/08

    Abstract: Embodiments of the present application disclose a communication method, including: performing, by a base station, beam scanning and alignment together with first terminal in a first subframe, to determine a beam that is used for sending data in the first subframe; and sending, by the base station, beam information of the beam used for sending data, where the beam information includes at least identification information of the beam and a synchronization signal, the synchronization signal is used by second terminal to synchronize with the base station, and the identification information of the beam is used by the first terminal and the second terminal to identify the beam sent by the base station. According to the present application, a time for scanning and alignment can be reduced, so as to facilitate quick access of a user that is to perform access.

    Antenna alignment method and device
    13.
    发明授权
    Antenna alignment method and device 有权

    公开(公告)号：US10096886B2

    公开(公告)日：2018-10-09

    申请号：US14950831

    申请日：2015-11-24

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Minghui Xu ,  Lingwen Xiao ,  Jia He

    IPC: H01Q1/12

    Abstract: The present disclosure provides an antenna alignment method and device. The method comprises: according to an antenna type of an antenna and a pre-selected image element type, acquiring a standard feature image corresponding to the antenna type and the image element type from a feature image library; according to the standard feature image, determining an actual feature image of the antenna to be adjusted, wherein there is a correlation between the position of a main lobe in the standard feature image and an alignment direction of a main lobe in the actual feature image; and according to the position of the main lobe, determining the alignment direction of the main lobe in the actual feature image, and adjusting the antenna to be adjusted to the alignment direction of the main lobe in the actual feature image.

    SIGNAL TRANSMISSION METHOD AND COMMUNICATION APPARATUS
    14.
    发明申请
    SIGNAL TRANSMISSION METHOD AND COMMUNICATION APPARATUS 有权

    公开(公告)号：US20240414041A1

    公开(公告)日：2024-12-12

    申请号：US18399166

    申请日：2023-12-28

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Meng Shi ,  Minghui Xu ,  Jiayin Zhang

    IPC: H04L27/26

    Abstract: A signal transmission method and a communication apparatus are described. The method may include: mapping a reference signal to a target location in a discrete Fourier transform-spread-orthogonal frequency division multiplexing DFT-s-OFDM symbol, where the target location is determined based on a pattern parameter of the reference signal and a location parameter of a data block, and the location parameter of the data block is used to determine a location of the data block in the DFT-s-OFDM symbol; and sending the DFT-s-OFDM symbol. Not only the pattern parameter of the reference signal is considered, but also the location parameter of the data block is considered, so that overall location distribution of the reference signal can be more proper, phase noise estimation performance and channel estimation performance are improved, and demodulation performance is improved.

    Phase tracking reference signal processing method and apparatus
    15.
    发明授权
    Phase tracking reference signal processing method and apparatus 有权

    公开(公告)号：US11108605B2

    公开(公告)日：2021-08-31

    申请号：US16659310

    申请日：2019-10-21

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xi Zhang ,  Fengwei Liu ,  Lei Chen ,  Minghui Xu

    IPC: H04L27/26 ,  H04J13/00 ,  H04L5/00

    Abstract: A PTRS processing method and an apparatus. The method includes: receiving, by a terminal, first indication information and second indication information from a network device, where the first indication information is used to indicate a time-domain location at which a PTRS is to be sent by the terminal, and the second indication information is used to indicate an offset of an initial time-domain location to which the PTRS is mapped by the terminal; mapping, by the terminal, the PTRS to one or more DFT-s-OFDM symbols based on the first indication information and the second indication information; and sending, by the terminal, the one or more DFT-s-OFDM symbols. In this way, the PTRS mapped to the DFT-s-OFDM symbol is offset at a DFT-s-OFDM symbol level, so that PTRS collision between terminals can be avoided to an extent, thereby improving phase tracking precision.

    Reference signal transmission method and transmission apparatus
    16.
    发明授权
    Reference signal transmission method and transmission apparatus 有权

    公开(公告)号：US10972320B2

    公开(公告)日：2021-04-06

    申请号：US16821544

    申请日：2020-03-17

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xi Zhang ,  Minghui Xu

    IPC: H04L5/00 ,  H04L27/00 ,  H04L25/03 ,  H04L27/26

    Abstract: This application provides a reference signal communication method and communication apparatus. The method includes determining a resource block offset of a frequency domain position of a phase tracking reference signal (PTRS) based on a frequency domain density of the PTRS, an identifier of a terminal device, and a first bandwidth, in accordance with a ratio of the first bandwidth to the frequency domain density of the PTRS being a non-integer. The first bandwidth is a bandwidth scheduled by a network device for the terminal device. The method further includes sending or receiving the PTRS based on the resource block offset of the frequency domain position of the PTRS.

    Information transmission method and apparatus
    17.
    发明授权
    Information transmission method and apparatus 有权

    公开(公告)号：US10715367B2

    公开(公告)日：2020-07-14

    申请号：US16518574

    申请日：2019-07-22

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xi Zhang ,  Minghui Xu ,  Lei Chen

    IPC: H04L5/00 ,  H04L27/26 ,  H04L27/20

    Abstract: An information transmission method related to the field of communications technologies includes: generating an orthogonal frequency division multiplexing (OFDM) symbol, where the OFDM symbol includes a pi/2-BPSK modulated data signal and a pi/2-binary phase shift keying (BPSK) modulated phase tracking reference signal (PTRS); and sending the OFDM symbol. This method may be applied to an uplink single carrier transmission scenario or a downlink single carrier transmission scenario.

    PHYSICAL DOWNLINK CONTROL CHANNEL TRANSMISSION METHOD AND RELATED APPARATUS
    20.
    发明公开
    PHYSICAL DOWNLINK CONTROL CHANNEL TRANSMISSION METHOD AND RELATED APPARATUS 审中-公开

    公开(公告)号：US20230362948A1

    公开(公告)日：2023-11-09

    申请号：US18352888

    申请日：2023-07-14

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Fengwei Liu ,  Minghui Xu ,  Jiayin Zhang

    IPC: H04W72/23 ,  H04W72/0446

    CPC classification number: H04W72/23 ,  H04W72/0446

    Abstract: This application provides a physical downlink control channel transmission method and a related apparatus. The transmission method includes: A network device sends a resource configuration, where the resource configuration indicates a time domain resource used by the network device for PDCCH sending. The network device sends a PDCCH of a first terminal device on a first time domain resource in the time domain resource used by the network device for PDCCH sending, and sends a PDCCH of a second terminal device on a second time domain resource in the time domain resource used by the network device for PDCCH sending. In this way, a terminal device needs to monitor a PDCCH only on a portion of the time domain resource used for PDCCH sending, and an increase in complexity of PDCCH monitoring of the terminal device can also be avoided.

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