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    Method and apparatus for transmitting downlink reference signal in wireless communication system that supports multiple antennas
    132.
    发明授权
    Method and apparatus for transmitting downlink reference signal in wireless communication system that supports multiple antennas 有权
    用于在支持多个天线的无线通信系统中发送下行链路参考信号的方法和装置

    公开(公告)号：US08982829B2

    公开(公告)日：2015-03-17

    申请号：US14218338

    申请日：2014-03-18

    Applicant: LG Electronics Inc.

    Inventor： Hyun Soo Ko ,  Seung Hee Han ,  Jae Hoon Chung ,  Bin Chul Ihm ,  Moon Il Lee

    IPC: H04W4/00 ,  H04L5/00 ,  H04W72/04 ,  H04B7/04 ,  H04J13/00 ,  H04B7/06 ,  H04B7/216 ,  H04W72/08 ,  H04L25/02 ,  H04L27/26 ,  H04W52/32 ,  H04W72/02

    CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/0626 ,  H04B7/216 ,  H04J13/004 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0094 ,  H04L25/0224 ,  H04L27/2601 ,  H04L27/2613 ,  H04W52/325 ,  H04W72/02 ,  H04W72/04 ,  H04W72/085

    Abstract: The present invention relates to a wireless communication system, and in particular, to a method and an apparatus for transmitting a downlink reference signal in a wireless communication system that supports multiple antennas. The method for transmitting a reference signal for a maximum of eight antenna ports according to one embodiment of the present invention comprises: in a base station, mapping part of a common reference signal for a maximum of four antenna ports into a downlink subframe that includes a 1st slot and a 2nd slot; in the base station, mapping a channel status information reference signal for the maximum of eight antenna ports into the downlink subframe, according to a preset pattern; and in the base station, transmitting the downlink subframe into which the common reference signal and the channel status information reference signal have been mapped, wherein the preset pattern defines the channel status information reference signal for the maximum of eight antenna ports to be mapped onto two OFDM symbols of the data region in the downlink subframe, and wherein part of the common reference signal for the maximum of four antenna ports is limited to the common reference signal for a maximum of two antenna ports.

    Abstract translation: 无线通信系统技术领域本发明涉及一种无线通信系统，特别是涉及在支持多个天线的无线通信系统中发送下行链路参考信号的方法和装置。 根据本发明的一个实施例的用于发送最多八个天线端口的参考信号的方法包括：在基站中，将最多四个天线端口的公共参考信号的一部分映射到包括 第一槽和第二槽; 在基站中，根据预设模式将用于最多八个天线端口的信道状态信息参考信号映射到下行链路子帧中; 并且在基站中，发送已经映射了公共参考信号和信道状态信息参考信号的下行链路子帧，其中，预设模式定义了要映射到两个的最多八个天线端口的信道状态信息参考信号 下行链路子帧中的数据区域的OFDM符号，并且其中用于最多四个天线端口的公共参考信号的一部分被限制为用于最多两个天线端口的公共参考信号。

    Method of transmitting control information in wireless communication system
    135.
    发明授权
    Method of transmitting control information in wireless communication system 有权
    在无线通信系统中发送控制信息的方法

    公开(公告)号：US08837625B2

    公开(公告)日：2014-09-16

    申请号：US14099736

    申请日：2013-12-06

    Applicant: LG Electronics Inc.

    Inventor： Hyun Soo Ko ,  Jaho Koo ,  Jae Hoon Chung ,  Moon Il Lee

    IPC: H04L27/10

    CPC classification number: H04W72/042 ,  H04B7/0452 ,  H04B7/0639

    Abstract: A method of transmitting control information in a wireless communication system is provided. The method includes configuring downlink control information including a plurality of information fields according to a format of scheduling for transmission of a single codeword in a spatial multiplexing mode, wherein the plurality of information fields include a precoding matrix indicator (PMI) confirmation filed for indicating whether precoding is performed on downlink data by using a PMI reported by a user equipment and a transmitted precoding matrix indicator (TPMI) information field for indicating a codebook index, and at least one of the PMI confirmation field and the TPMI information field indicates an offset value of power for the downlink data transmission or interference information for the downlink data transmission, and transmitting the downlink control information.

    Abstract translation: 提供一种在无线通信系统中发送控制信息的方法。 该方法包括根据用于在空间复用模式中传输单个码字的调度格式来配置包括多个信息字段的下行链路控制信息，其中所述多个信息字段包括预编码矩阵指示符（PMI）确认，用于指示是否 通过使用由用户设备报告的PMI和用于指示码本索引的发送的预编码矩阵指示符（TPMI）信息字段对下行链路数据执行预编码，并且PMI确认字段和TPMI信息字段中的至少一个表示偏移值 的下行链路数据传输的功率或用于下行链路数据传输的干扰信息，以及发送下行链路控制信息。

    Method and apparatus for correcting errors in a multiple subcarriers communication system using multiple antennas
    137.
    发明授权
    Method and apparatus for correcting errors in a multiple subcarriers communication system using multiple antennas 有权
    用于校正使用多个天线的多个子载波通信系统中的错误的方法和装置

    公开(公告)号：US08645782B2

    公开(公告)日：2014-02-04

    申请号：US13652406

    申请日：2012-10-15

    Applicant: LG Electronics Inc.

    Inventor： Moon Il Lee ,  Bin Chul Ihm ,  Jin Young Chun

    IPC: G08C25/02

    CPC classification number: H04L1/1819 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0639 ,  H04B7/0656 ,  H04B7/0697 ,  H04L1/0025 ,  H04L1/0625 ,  H04L1/1893 ,  H04L27/2601

    Abstract: A method for correcting errors in a multiple antenna system based on a plurality of sub-carriers and a transmitting/receiving apparatus supporting the same are disclosed. The method includes determining a phase shift based precoding matrix phase shifted at a predetermined phase angle, initially transmitting each sub-carrier symbol to a receiver in a packet unit by using the phase shift based precoding matrix, reconstructing the phase shift based precoding matrix to reduce a spatial multiplexing rate if a negative reception acknowledgement (NACK) is received from the receiver, and retransmitting the initially transmitted sub-carrier symbol by using the reconstructed phase shift based precoding matrix or by changing the phase shift based precoding matrix using offset information fed back from the receiver or random offset information.

    Abstract translation: 公开了一种用于基于多个子载波来校正多天线系统中的误差的方法以及支持其的发送/接收装置。 该方法包括确定以预定相位角移位的基于相移的预编码矩阵相位，首先通过使用基于相移的预编码矩阵将每个子载波符号发送到分组单元中的接收机，重建基于相移的预编码矩阵以减少 如果从接收机接收到否定的接收确认（NACK），并且通过使用基于重构的基于相移的预编码矩阵来重新发送最初发送的子载波符号，或者通过使用反馈的偏移信息改变基于相移的预编码矩阵， 从接收器或随机偏移信息。

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