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    METHOD FOR PERFORMING AN ADAPTIVE MODULATION AND CODING SCHEME IN MOBILE COMMUNICATION SYSTEM
    71.
    发明申请
    METHOD FOR PERFORMING AN ADAPTIVE MODULATION AND CODING SCHEME IN MOBILE COMMUNICATION SYSTEM 有权
    在移动通信系统中执行自适应调制和编码方案的方法

    公开(公告)号：US20130215985A1

    公开(公告)日：2013-08-22

    申请号：US13838545

    申请日：2013-03-15

    Applicant: LG Electronics Inc.

    Inventor： Moon Il LEE ,  Bin Chul IHM ,  Jin Young CHUN ,  Sung Ho PARK ,  Hyun Soo KO ,  Wook Bong LEE

    IPC: H04W72/04

    CPC classification number: H04L27/2647 ,  H04B1/16 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0017 ,  H04L1/0029 ,  H04L1/0073 ,  H04L5/0058 ,  H04L12/18 ,  H04L25/0202 ,  H04L27/2601 ,  H04W72/0406

    Abstract: A method for performing an adaptive modulation and coding scheme in a mobile communication system. Including receiving a signal and selecting a modulation and coding scheme (MCS) level from an MCS subset of an MCS set considering information derived from the signal, by a mobile station. The MCS subset is selected in accordance with a service type related to the mobile station and the MCS subset is configured with one or more MCS levels, the MCS set is represented by 5 bits and the MCS subset is represented by 4 bits to indicate MCS value, respectively, and the 4 bits of the MCS subset is a part of the 5 bits of the MCS set.

    Abstract translation: 一种用于在移动通信系统中执行自适应调制和编码方案的方法。 包括从移动台接收信号并从考虑从信号导出的信息的MCS集合的MCS集合中选择调制和编码方案（MCS）级别。 根据与移动站相关的服务类型选择MCS子集，并且MCS子集配置有一个或多个MCS级别，MCS集合由5比特表示，并且MCS子集由4比特表示以表示MCS值 ，MCS子集的4位是MCS集合的5位的一部分。

    METHOD AND APPARATUS FOR CORRECTING ERRORS IN A MULTIPLE SUBCARRIERS COMMUNICATION SYSTEM USING MULTIPLE ANTENNAS
    72.
    发明申请
    METHOD AND APPARATUS FOR CORRECTING ERRORS IN A MULTIPLE SUBCARRIERS COMMUNICATION SYSTEM USING MULTIPLE ANTENNAS 有权
    使用多个天线校正多个SUBCARRIERS通信系统中的错误的方法和装置

    公开(公告)号：US20130034182A1

    公开(公告)日：2013-02-07

    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: H04L1/02

    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 it 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 从接收机接收到负接收确认（NACK）的空间多路复用速率，并且通过使用基于重构的基于相移的预编码矩阵来重传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。

    METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNAL IN MULTI-ANTENNA SYSTEM
    73.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNAL IN MULTI-ANTENNA SYSTEM 有权

    公开(公告)号：US20220077898A1

    公开(公告)日：2022-03-10

    申请号：US17527294

    申请日：2021-11-16

    Applicant: LG Electronics Inc.

    Inventor： Hyun Soo KO ,  Seung Hee HAN ,  Ja Ho KOO ,  Jae Hoon CHUNG ,  Bin Chul IHM ,  Moon Il LEE

    IPC: H04B7/0413 ,  H04B7/06 ,  H04L5/00 ,  H04L25/02

    Abstract: A method for transmitting a reference signal in a multi-antenna system is provided. The method includes: selecting at least one orthogonal frequency division multiplexing (OFDM) symbol in a subframe containing a plurality of OFDM symbols; allocating a channel quality indication reference signal (CQI RS) capable of measuring a channel state for each of a plurality of antennas to the selected at least one OFDM symbol; and transmitting the CQI RS, wherein the CQI RS is allocated to an OFDM symbol which does not overlap with an OFDM symbol to which a common reference signal to be transmitted to all user equipments in a cell or a dedicated reference signal to be transmitted to a specific user equipment in the cell is allocated.

    SIGNAL TRANSMISSION METHOD AND APPARATUS USING CODEBOOK IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS
    75.
    发明申请
    SIGNAL TRANSMISSION METHOD AND APPARATUS USING CODEBOOK IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAS 审中-公开

    公开(公告)号：US20190140715A1

    公开(公告)日：2019-05-09

    申请号：US16221123

    申请日：2018-12-14

    Applicant: LG ELECTRONICS INC.

    Inventor： Hyun Soo KO ,  Jae Hoon CHUNG ,  Seung Hee HAN ,  Moon Il LEE

    IPC: H04B7/0456 ,  H04B7/06 ,  H04L25/03 ,  H04W72/04 ,  H04W72/02 ,  H04L27/26

    Abstract: The present invention relates to a method for transmitting, by a base station, a downlink signal using a plurality of transmission antennas comprises the steps of: applying a precoding matrix indicated by the PMI, received from a terminal, in a codebook to a plurality of layers, and transmitting the precoded signal to the terminal through a plurality of transmission antennas. Among precoding matrices included in the codebook, a precoding matrix for even number transmission layers can be a 2×2 matrix containing four matrices (W1s), the matrix (W1) having rows of a number of transmission antennas and columns of half the number of transmission layers, the first and second columns of the first row in the 2×2 matrix being multiplied by 1, the first column of the second row being multiplied by coefficient “a” of a phase, and the first column of the second row being multiplied by “−a”.

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