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    Channel state information CSI reporting method and apparatus, and base station antenna
    131.
    发明授权
    Channel state information CSI reporting method and apparatus, and base station antenna 有权

    公开(公告)号：US10128928B2

    公开(公告)日：2018-11-13

    申请号：US15365653

    申请日：2016-11-30

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Leiming Zhang ,  Yongxing Zhou ,  Jianghua Liu ,  Kunpeng Liu

    IPC: G01C11/02 ,  H04B7/06 ,  H04B7/0456

    Abstract: The present invention discloses a channel state information CSI reporting method and apparatus, and a base station antenna. In the method, at least one precoding matrix is selected from a codebook based on a reference signal sent by a base station, and CSI is sent to the base station. The CSI includes at least one selected precoding matrix indicator PMI, and the PMI is corresponding to the selected at least one precoding matrix. At least one precoding matrix W included in the codebook may be expressed as W=W1W2, where is a Kronecker product, and at least one of W1 or W2 is an antenna selection matrix. Therefore, in embodiments of the present invention, the base station can select, according to the at least one precoding matrix that is fed back, one or more antenna ports to send a signal.

    CONTROL INFORMATION SENDING METHOD, RECEIVING METHOD, AND DEVICE
    132.
    发明申请
    CONTROL INFORMATION SENDING METHOD, RECEIVING METHOD, AND DEVICE 审中-公开

    公开(公告)号：US20180317209A1

    公开(公告)日：2018-11-01

    申请号：US16020578

    申请日：2018-06-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Lei Guan ,  Lixia Xue ,  Yongxing Zhou

    IPC: H04W72/04 ,  H04W74/08 ,  H04W72/12 ,  H04W76/27 ,  H04W72/00 ,  H04L5/00

    CPC classification number: H04W72/042 ,  H04L5/0053 ,  H04W72/005 ,  H04W72/0446 ,  H04W72/1278 ,  H04W74/0833 ,  H04W76/27

    Abstract: Embodiments of the present invention provide a control information sending method, receiving method, and device. The control information sending method includes: determining a first subframe of a first radio frame on a first carrier, where the first subframe includes a control region; sending control information in the control region of the first subframe of the first radio frame to a user equipment, where the control information includes a PDCCH; and sending an ePDCCH in a second subframe of the first radio frame lo the user equipment. According to the embodiments of the present invention, when control information borne on an ePDCCH cannot be sent in a first radio frame, a PDCCH can still be sent to a user equipment through a control region in a first subframe, thereby achieving purposes of performing uplink/downlink scheduling for the user equipment and downlink feedback for uplink data of the user equipment.

    METHOD FOR DETERMINING PRECODING MATRIX INDICATOR, USER EQUIPMENT, AND BASE STATION
    133.
    发明申请
    METHOD FOR DETERMINING PRECODING MATRIX INDICATOR, USER EQUIPMENT, AND BASE STATION 审中-公开

    公开(公告)号：US20180241447A1

    公开(公告)日：2018-08-23

    申请号：US15951153

    申请日：2018-04-11

    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

    Inventor： Jianguo Wang ,  Yongxing Zhou ,  Yong Wu ,  Liang Xia

    IPC: H04B7/0456 ,  H04L5/00 ,  H04B7/06

    CPC classification number: H04B7/0456 ,  H04B7/0639 ,  H04L5/0048

    Abstract: A method for determining a precoding matrix indicator, user equipment, and a base station are disclosed in embodiments of the present invention. The method includes: receiving a first reference signal set sent by a base station, where the first reference signal set is associated with a user equipment-specific matrix or matrix set; selecting a precoding matrix based on the first reference signal set, where the precoding matrix is a function of the user equipment-specific matrix or matrix set; and sending a precoding matrix indicator to the base station, where the precoding matrix indicator corresponds to the selected precoding matrix. In the embodiments of the present invention, CSI feedback precision can be improved without excessively increasing feedback overhead, thereby improving system performance.

    INFORMATION TRANSMISSION METHOD, USER EQUIPMENT, AND BASE STATION
    134.
    发明申请
    INFORMATION TRANSMISSION METHOD, USER EQUIPMENT, AND BASE STATION 审中-公开

    公开(公告)号：US20180227915A1

    公开(公告)日：2018-08-09

    申请号：US15947876

    申请日：2018-04-09

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Lixia Xue ,  Lei Guan ,  Yongxing Zhou ,  Jingyuan Sun

    IPC: H04W72/04 ,  H04W4/02 ,  H04W74/08 ,  H04L27/227 ,  H04L27/26

    Abstract: Embodiments of the present application provide a method for acquiring information of access resources, a terminal device, and a base station. A terminal device detects a synchronization signal of a cell to be accessed by the terminal device. The terminal device further receives a broadcast channel of the cell on a broadcast channel resource. The terminal device then determines a resource on which the cell is located according to resource indication information carried in the broadcast channel. The broadcast channel resource corresponds to an actual access resource, and the synchronization signal is detected on the actual access resource. The actual access resource is one of a plurality of candidate access resources of the cell. The resource indication information indicates a location relationship between the actual access resource and the resource on which the cell is located.

    BEAM IDENTIFIER OBTAINING METHOD AND APPARATUS, DEVICE, AND SYSTEM
    137.
    发明申请
    BEAM IDENTIFIER OBTAINING METHOD AND APPARATUS, DEVICE, AND SYSTEM 审中-公开

    公开(公告)号：US20180063828A1

    公开(公告)日：2018-03-01

    申请号：US15716851

    申请日：2017-09-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Ting Wang ,  Yuanjie Li ,  Jian Zhang ,  Yongxing Zhou

    IPC: H04W72/04 ,  H04W16/28 ,  H04L5/00

    Abstract: Embodiments of the present disclosure provide a beam identifier obtaining method and apparatus, a device, and a system. The method includes: determining, by a base station, a signal corresponding to a beam identifier; sending, by the base station, the signal by using a beam corresponding to the beam identifier, so that user equipment detecting the signal obtains the beam identifier according to the signal; and when receiving the beam identifier fed back by the user equipment, communicating, by the base station, with the user equipment by using the beam corresponding to the beam identifier.

    Method, user equipment and base station for determining precoding matrix indicator
    138.
    发明授权
    Method, user equipment and base station for determining precoding matrix indicator 有权

    公开(公告)号：US09847817B2

    公开(公告)日：2017-12-19

    申请号：US14931284

    申请日：2015-11-03

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jianguo Wang ,  Yongxing Zhou

    IPC: H04B7/04 ,  H04L1/06 ,  H04W72/04

    CPC classification number: H04B7/0465 ,  H04B7/0478 ,  H04L1/06 ,  H04W72/042 ,  H04W72/046

    Abstract: The present disclosure discloses a method, a user equipment and a base station for determining a PMI. The method includes: receiving a reference signal set sent by a base station; based on the reference signal set, selecting a precoding matrix from a codebook, the codebook at least including a non-constant modulus precoding matrix, the non-constant modulus precoding matrix at least including a non-constant modulus column vector, amplitude values of at least two elements of the non-constant modulus column vector forming a symmetrical sequence; and sending a PMI to the base station, the PMI corresponding to the selected precoding matrix. According to the method, the user equipment and the base station for determining PMI, because the non-constant modulus precoding matrix included in the adopted codebook can adjust the shape of a beam, antennas may focus power on a hotspot region, and thus a load balance may be effectively realized.

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