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    Communication method, apparatus, and system
    2.
    发明授权
    Communication method, apparatus, and system 有权

    公开(公告)号：US11871425B2

    公开(公告)日：2024-01-09

    申请号：US17352916

    申请日：2021-06-21

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Xu Zhang ,  Jianguo Wang

    IPC: H04W72/04 ,  H04L5/00 ,  H04W72/23 ,  H04W48/12 ,  H04L1/00

    CPC classification number: H04W72/23 ,  H04L1/0061 ,  H04L5/0048 ,  H04W48/12

    Abstract: This application relates to the field of wireless communications, and in particular, to a communication method, an apparatus, and a system in a wireless communications system. In the method, a terminal device detects a physical downlink control channel PDCCH sent by a network device, the PDCCH carries indication information, and the indication information is used to indicate a type of system information; the terminal device determines, based on the indication information, a physical resource carrying the system information; and the terminal device receives the system information on the physical resource. Based on this method, a network device can flexibly indicate a type of system information that needs to be sent.

    Base station, user equipment, and communication signal transmitting and receiving methods
    3.
    发明授权
    Base station, user equipment, and communication signal transmitting and receiving methods 有权

    公开(公告)号：US11509376B2

    公开(公告)日：2022-11-22

    申请号：US17007261

    申请日：2020-08-31

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yongxing Zhou ,  Jianguo Wang ,  Leiming Zhang ,  Jianghua Liu

    IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0408 ,  H04L27/26 ,  H04W72/00

    Abstract: A base station, user equipment, and communication signal transmitting and receiving methods. A communication signal transmitting apparatus includes a transmitter; a processor, and non-transitory computer-readable storage medium storing a program for execution by the processor, the program including instructions to determine at least two different resource element groups to use to transmit a synchronization signal, each different resource element group of the at least two different resource element groups used to separately transmit the synchronization signal, and transmit the synchronization signal to user equipment on each of the resource element groups, where, for each resource element group, the synchronization signal transmitted on the respective resource element group carries at least one piece of same information, the same information is cell specific information, and the synchronization signals transmitted on the at least two resource element groups using different beams.

    Communication method, apparatus, and system
    5.
    发明授权
    Communication method, apparatus, and system 有权

    公开(公告)号：US11057878B2

    公开(公告)日：2021-07-06

    申请号：US16992981

    申请日：2020-08-13

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Xu Zhang ,  Jianguo Wang

    IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04W48/12

    Abstract: This application relates to the field of wireless communications, and in particular, to a communication method, an apparatus, and a system in a wireless communications system. In the method, a terminal device detects a physical downlink control channel PDCCH sent by a network device, the PDCCH carries indication information, and the indication information is used to indicate a type of system information; the terminal device determines, based on the indication information, a physical resource carrying the system information; and the terminal device receives the system information on the physical resource. Based on this method, a network device can flexibly indicate a type of system information that needs to be sent.

    Reference Signal Transmission Method and Apparatus
    6.
    发明申请
    Reference Signal Transmission Method and Apparatus 有权

    公开(公告)号：US20210067302A1

    公开(公告)日：2021-03-04

    申请号：US17096703

    申请日：2020-11-12

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jianguo Wang ,  Yongxing Zhou

    IPC: H04L5/00 ,  H04B7/04 ,  H04B7/0413 ,  H04W72/04

    Abstract: Embodiments disclose a reference signal transmission method and an apparatus. The method includes receiving reference signal resource configuration information sent by a base station, where the reference signal resource configuration information includes antenna port quantity information and a resource configuration index. The method also includes determining a reference signal configuration from a reference signal configuration set according to the antenna port quantity information and the resource configuration index. The method also includes obtaining, according to the determined reference signal configuration, positions of the resource elements (REs) that are used to send the reference signal on the antenna ports in the antenna port set, and receiving reference signals according to the positions of the REs.

    METHOD FOR RECEIVING REFERENCE SIGNAL AND METHOD FOR SENDING REFERENCE SIGNAL
    7.
    发明申请
    METHOD FOR RECEIVING REFERENCE SIGNAL AND METHOD FOR SENDING REFERENCE SIGNAL 审中-公开

    公开(公告)号：US20200280415A1

    公开(公告)日：2020-09-03

    申请号：US16876087

    申请日：2020-05-17

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zheng Chen ,  Jianguo Wang ,  Xu Zhang

    IPC: H04L5/00 ,  H04L25/02

    Abstract: Various embodiments provide a method for receiving reference signal and a method for sending a reference signal. In those embodiments, a terminal device can determine a location of a resource element to which a reference signal is mapped. The terminal device can determine a reference signal sequence corresponding to the resource element. The index of each element in the reference signal sequence is determined based on a resource block index of a resource block corresponding to the resource element, a quantity of resource elements that carry the reference signal in the resource block, a resource block offset, or an inter-symbol offset. The terminal device can receive the reference signal by using the resource element, and performing channel estimation or channel sounding based on the received reference signal and the reference signal sequence. Therefore, the terminal device can complete channel estimation without learning of a system bandwidth.

    Method for reporting channel state information, user equipment, and base station
    8.
    发明授权
    Method for reporting channel state information, user equipment, and base station 有权

    公开(公告)号：US10587325B2

    公开(公告)日：2020-03-10

    申请号：US16273798

    申请日：2019-02-12

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jianguo Wang ,  Yongxing Zhou

    IPC: H04B7/06 ,  H04B7/04 ,  H04L27/26 ,  H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04B7/0413 ,  H04W84/04

    Abstract: Embodiments of the present disclosure disclose a method for reporting channel state information, including receiving a sounding signal set sent by the base station and determining a reference signal resource configuration index according to the sounding signal set, where the reference signal resource configuration index is used to indicate a reference signal resource configuration in reference signal resource configuration set information. The method also includes receiving a reference signal set sent by the base station, where the reference signal set corresponds to the reference signal resource configuration and determining channel state information according to the reference signal set. Additionally, the method includes sending the reference signal resource configuration index and the channel state information to the base station.

    METHOD FOR REPORTING CHANNEL STATE INFORMATION, USER EQUIPMENT, AND BASE STATION
    9.
    发明申请
    METHOD FOR REPORTING CHANNEL STATE INFORMATION, USER EQUIPMENT, AND BASE STATION 审中-公开

    公开(公告)号：US20200044700A1

    公开(公告)日：2020-02-06

    申请号：US16594646

    申请日：2019-10-07

    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

    Inventor： Jianguo Wang ,  Yongxing Zhou ,  Jianghua Liu

    IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0417

    Abstract: Embodiments of the present invention provide a method includes: receiving a reference signal sent by a base station; selecting, based on the reference signal, a precoding matrix from a codebook, where a precoding matrix W included in the codebook is a product of three matrices being W1, Z, and W2, that is, W=W1ZW2, where both W1 and Z are block diagonal matrices, W1=a formula (I), Z=a formula (II), each of W1 and Z includes at least one block matrix, that is, NB≥1, and each column of each block matrix Zi in the matrix Z has the following structure formula (III); and sending a precoding matrix indicator PMI to the base station, where the PMI corresponds to the selected precoding matrix, and is used by the base station to obtain the selected precoding matrix W according to the PMI.

    METHOD FOR FEEDING BACKCHANNEL STATE INFORMATION, USER EQUIPMENT, AND BASE STATION
    10.
    发明申请
    METHOD FOR FEEDING BACKCHANNEL STATE INFORMATION, USER EQUIPMENT, AND BASE STATION 审中-公开

    公开(公告)号：US20190173550A1

    公开(公告)日：2019-06-06

    申请号：US16268284

    申请日：2019-02-05

    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

    Inventor： Jianguo Wang ,  Yongxing Zhou ,  Leiming Zhang

    IPC: H04B7/06

    CPC classification number: H04B7/0626 ,  G06F17/16 ,  H04B7/0413 ,  H04B7/0634 ,  H04B7/0639 ,  H04N19/124

    Abstract: Embodiments of the present invention provide a method for feeding back channel state information, a user equipment, and a base station, to improve feedback precision of channel state information. The method includes: receiving a reference signal sent by a base station; selecting a precoding matrix W from a codebook according to the reference signal, where a column vector of the precoding matrix W may be expressed as α[v ejϕv]T, v=[1 ejθ]; and sending a precoding matrix indicator PMI to the base station, where the PMI is corresponding to the selected precoding matrix W. The present invention may further improve quantization precision and achieve balance between overheads and the quantization precision. The base station performs precoding on a sent signal according to a fed back precoding matrix indicator, which can improve precoding precision, thereby improving a data transmission rate and system throughput.

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