中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.014 seconds)

    CODEBOOK BASED CHANNEL INFORMATION FEEDBACK METHOD, DEVICE AND SYSTEM
    1.
    发明申请
    CODEBOOK BASED CHANNEL INFORMATION FEEDBACK METHOD, DEVICE AND SYSTEM 审中-公开

    公开(公告)号：US20160119049A1

    公开(公告)日：2016-04-28

    申请号：US14987471

    申请日：2016-01-04

    Applicant: SONY CORPORATION

    Inventor： Qimei Cui ,  Shiyuan Li ,  Xiaofeng Tao ,  Chao Wang ,  Xianjun Yang

    IPC: H04B7/06 ,  H04W76/02

    CPC classification number: H04B7/0639 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04L1/0026 ,  H04W72/042 ,  H04W76/15

    Abstract: A codebook based channel information feedback method, device and system are provided in the present invention. The codebook based channel information feedback method includes: measuring, by a terminal in a communication system, a parameter of a downlink channel between the terminal and a base station of the communication system; selecting a plurality of precoding matrixes from a precoding codebook by using the parameter of the downlink channel, wherein a plurality of the precoding matrixes can be used by both of single-user multi-input multi-output (MIMO) transport mode and multi-user MIMO transport mode, and the precoding codebook is an aggregation of precoding matrixes; and feeding back a first information for indicating a plurality of the precoding matrixes to the base station.

    RADIO COMMUNICATIONS DEVICE AND SYSTEM, RADIO COMMUNICATIONS METHOD AND MACHINE READABLE MEDIUM
    3.
    发明申请
    RADIO COMMUNICATIONS DEVICE AND SYSTEM, RADIO COMMUNICATIONS METHOD AND MACHINE READABLE MEDIUM 有权
    无线电通信设备和系统，无线电通信方法和机器可读介质

    公开(公告)号：US20150016425A1

    公开(公告)日：2015-01-15

    申请号：US14370412

    申请日：2012-11-28

    Applicant: SONY CORPORATION

    Inventor： Qimei Cui ,  Yingni Zhang ,  Xiaona Li ,  Shiyuan Li

    IPC: H04W36/30

    CPC classification number: H04W36/30 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0026 ,  H04L5/0035 ,  H04L2001/0093 ,  H04W72/08 ,  H04W76/15

    Abstract: An electronic device, and a method and computer readable medium, for use of subsets of coordinated multi-point (CoMP) transmission cells. The device includes processing circuitry configured to select a plurality of transmission cells as the subset of the CoMP set of transmission cells used to support wireless communications with a user equipment (UE). The processing circuitry selects the plurality of transmission cells based on a message from the UE that includes aggregate channel quality information (CQI) for at least two communication channels between the UE and corresponding transmission cells of the plurality of transmission cells.

    Abstract translation: 一种电子设备，以及用于协调多点（CoMP）传输小区的子集的方法和计算机可读介质。 该设备包括被配置为选择多个传输小区作为用于支持与用户设备（UE）的无线通信的传输小区的CoMP组的子集的处理电路。 所述处理电路基于来自所述UE的消息来选择所述多个传输小区，所述消息包括所述UE与所述多个传输小区的相应传输小区之间的至少两个通信信道的聚合信道质量信息（CQI）。

    CODEBOOK BASED CHANNEL INFORMATION FEEDBACK METHOD, DEVICE AND SYSTEM
    5.
    发明申请
    CODEBOOK BASED CHANNEL INFORMATION FEEDBACK METHOD, DEVICE AND SYSTEM 审中-公开
    基于CODEBOOK的渠道信息反馈方法，设备和系统

    公开(公告)号：US20150200719A1

    公开(公告)日：2015-07-16

    申请号：US14656351

    申请日：2015-03-12

    Applicant: SONY CORPORATION

    Inventor： Qimei CUI ,  Shiyuan Li ,  Xiaofeng Tao ,  Chao Wang ,  Xianjun Yang

    IPC: H04B7/04 ,  H04W72/04 ,  H04W76/02

    CPC classification number: H04B7/0639 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04L1/0026 ,  H04W72/042 ,  H04W76/15

    Abstract: A codebook based channel information feedback method, device and system are provided in the present invention. The codebook based channel information feedback method includes: measuring, by a terminal in a communication system, a parameter of a downlink channel between the terminal and a base station of the communication system; selecting a plurality of precoding matrixes from a precoding codebook by using the parameter of the downlink channel, wherein a plurality of the precoding matrixes can be used by both of single-user multi-input multi-output (MIMO) transport mode and multi-user MIMO transport mode, and the precoding codebook is an aggregation of precoding matrixes; and feeding back a first information for indicating a plurality of the precoding matrixes to the base station.

    Abstract translation: 本发明提供了基于码本的信道信息反馈方法，装置和系统。 基于码本的信道信息反馈方法包括：通信系统中的终端测量终端与通信系统的基站之间的下行链路信道的参数; 通过使用下行链路信道的参数从预编码码本中选择多个预编码矩阵，其中多个预编码矩阵可以由单用户多输入多输出（MIMO）传输模式和多用户 MIMO传输模式，预编码码本是预编码矩阵的聚合; 并向基站反馈用于指示多个预编码矩阵的第一信息。

    Method and device for feeding back downlink channel feedback information, and method and device for user pairing
    6.
    发明授权
    Method and device for feeding back downlink channel feedback information, and method and device for user pairing 有权

    公开(公告)号：US11043991B2

    公开(公告)日：2021-06-22

    申请号：US16362707

    申请日：2019-03-25

    Applicant: Sony Corporation

    Inventor： Qimei Cui ,  Shiyuan Li ,  Xiaofeng Tao ,  Chao Wang

    IPC: H04B7/0417 ,  H04B7/0452 ,  H04B7/06 ,  H04L1/00 ,  H04L1/20

    Abstract: A method and device for feeding back downlink channel feedback information, and a method and device for user pairing. The method for feeding back downlink channel feedback information includes: calculating the multi-user channel quality indication error of a user, which error is used to reflect the difference in channel quality indication between the situation of multi-user multiple input multiple output transmission and the situation of single user multiple input multiple output transmission; adding the multi-user channel quality indication error into the downlink channel feedback information which includes a pre-coding matrix indication and a channel quality indication, and feeding the same back to a base station for scheduling. Therefore, the bit error rate of demodulation in the MIMO system can be reduced and the system performance can be improved.

Patent Agency Ranking