中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

125 records (took 0.05 seconds)

    Method for determining precoding matrix indicator, user equipment, and base station
    51.
    发明授权
    Method for determining precoding matrix indicator, user equipment, and base station 有权

    公开(公告)号：US10263674B2

    公开(公告)日：2019-04-16

    申请号：US16107653

    申请日：2018-08-21

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

    IPC: H04B7/04 ,  H04B7/0456 ,  H04L5/00 ,  H04B7/06

    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.

    Method for reporting channel state information, user equipment, and base station
    52.
    发明授权
    Method for reporting channel state information, user equipment, and base station 有权

    公开(公告)号：US10063296B2

    公开(公告)日：2018-08-28

    申请号：US15808318

    申请日：2017-11-09

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jianguo Wang ,  Yongxing Zhou ,  Jianghua Liu

    IPC: H04B7/08 ,  H04B7/0456 ,  H04B7/06

    CPC classification number: H04B7/0456 ,  H04B7/0417 ,  H04B7/0473 ,  H04B7/0626 ,  H04B7/0639

    Abstract: Embodiments of the present invention provide a method includes: receiving a reference signal sent by abase 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 AND APPARATUS FOR MEASURING COMMUNICATION QUALITY
    53.
    发明申请
    METHOD AND APPARATUS FOR MEASURING COMMUNICATION QUALITY 审中-公开

    公开(公告)号：US20180159673A1

    公开(公告)日：2018-06-07

    申请号：US15885332

    申请日：2018-01-31

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jianguo Wang ,  Jianghua Liu ,  Yongxing Zhou

    IPC: H04L5/00 ,  H04L1/00 ,  H04B17/309

    CPC classification number: H04L5/0048 ,  H04B17/309 ,  H04L1/0026 ,  H04L5/0023

    Abstract: A method and an apparatus for measuring communication quality are disclosed. The method includes: acquiring reference signal resource configuration information, where the reference signal resource configuration information at least includes: reference signal port configuration information, and reference signal power information of at least one port group; or the reference signal resource configuration information at least includes: reference signal port configuration information, and a ratio of a power of a data channel in at least one port group to a power of a reference signal; and sending the acquired reference signal resource configuration information to user equipment. Therefore, in a multi-antenna system, accurate signal quality measurement information is acquired, or more accurate channel state information is acquired.

    Method for determining precoding matrix indicator, user equipment, and base station
    55.
    发明授权
    Method for determining precoding matrix indicator, user equipment, and base station 有权

    公开(公告)号：US09967008B2

    公开(公告)日：2018-05-08

    申请号：US14936092

    申请日：2015-11-09

    Applicant: Huawei Technologies Co., Ltd.

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

    IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00

    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.

    Method and device for reporting signal quality measurement information
    56.
    发明授权
    Method and device for reporting signal quality measurement information 有权

    公开(公告)号：US09900075B2

    公开(公告)日：2018-02-20

    申请号：US14952684

    申请日：2015-11-25

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Xiaodong Yang ,  Jianguo Wang ,  Yongqiang Gao

    IPC: H04K1/10 ,  H04L27/28 ,  H04B7/06 ,  H04W24/02 ,  H04B7/0456 ,  H04W24/10

    CPC classification number: H04B7/0632 ,  H04B7/0456 ,  H04B7/0617 ,  H04W24/02 ,  H04W24/10

    Abstract: The present invention discloses a method and a device for reporting signal quality measurement information. Main content includes: receiving, by a terminal, a signal quality measurement configuration message sent by a base station; determining signal quality measurement information according to a channel weighting instruction carried in the received signal quality measurement configuration message; and sending the signal quality measurement information to the base station, so that the base station adjusts a downtilt angle of an antenna of the base station according to the received signal quality measurement information, so as to change signal coverage of the antenna, thereby avoiding problems of system resource wastes and poor quality of service of a signal that are caused by the fact that signal coverage areas overlap when a downtilt angle of an antenna is adjusted randomly in an active antenna system, and improving the efficiency of terminal switching between cells.

    Method for feeding back channel state information, user equipment, and base station
    58.
    发明授权
    Method for feeding back channel state information, user equipment, and base station 有权

    公开(公告)号：US09729222B2

    公开(公告)日：2017-08-08

    申请号：US15229576

    申请日：2016-08-05

    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.

    CSI REPORTING METHOD AND DEVICE
    60.
    发明申请
    CSI REPORTING METHOD AND DEVICE 审中-公开
    CSI报告方法和设备

    公开(公告)号：US20170026953A1

    公开(公告)日：2017-01-26

    申请号：US15282651

    申请日：2016-09-30

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jianguo Wang ,  Yongxing Zhou ,  Jianghua Liu

    IPC: H04W72/04 ,  H04L5/00

    CPC classification number: H04W72/0413 ,  H04L1/0026 ,  H04L1/0028 ,  H04L5/0053 ,  H04L5/0057 ,  H04W72/048

    Abstract: Embodiments of the present invention disclose a CSI reporting method and a device, and the method may include: receiving subband size configuration information sent by a base station, where the subband size configuration information includes a user equipment-specific subband size configuration index; determining a subband size according to the user equipment-specific subband size configuration index; determining CSI, where the CSI reflects transmission on at least one subband, and the subband is determined according to the subband size; and sending the CSI to the base station. According to the embodiments of the present invention, performance of a communications system can be improved.

    Abstract translation: 本发明的实施例公开了一种CSI报告方法和装置，并且所述方法可以包括：接收由基站发送的子带大小配置信息，其中所述子带大小配置信息包括用户设备特定子带尺寸配置索引; 根据用户设备特定的子带大小配置索引确定子带大小; 确定CSI，其中CSI反映在至少一个子带上的传输，并且该子带根据子带大小来确定; 并将CSI发送到基站。 根据本发明的实施例，可以提高通信系统的性能。

Patent Agency Ranking