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    METHOD AND APPARATUS FOR TRANSMITTING A PILOT IN MULTI-ANTENNA SYSTEM
    92.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING A PILOT IN MULTI-ANTENNA SYSTEM 有权
    用于发射多天线系统中的导弹的方法和装置

    公开(公告)号：US20090232239A1

    公开(公告)日：2009-09-17

    申请号：US12403298

    申请日：2009-03-12

    申请人： Hyun Soo Ko ,  Jin-Young Chun ,  Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee

    发明人： Hyun Soo Ko ,  Jin-Young Chun ,  Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee

    IPC分类号： H04L27/28 ,  H04L27/00

    CPC分类号： H04L5/005 ,  H04B7/0413 ,  H04L5/0051 ,  H04L5/0053 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03802 ,  H04W52/325

    摘要： A method of transmitting a pilot method in a multi-antenna system is provided. The method comprises generating a preceding matrix including a preceding vector, the preceding vector being applied to each of data streams to be transmitted, performing preceding procedure for a pilot by using the preceding matrix, and transmitting the precoded pilot, wherein transmission power of the precoded pilot is determined specifically to the each of the data streams. The transmission power of a precoded pilot can be controlled adaptively, individually and independently for each channel to improve channel estimation performance.

    摘要翻译： 提供了一种在多天线系统中发送导频方法的方法。 该方法包括：生成包括先前向量的前一矩阵，将前一向量应用于要发送的每个数据流，通过使用先前矩阵对导频执行先前过程，并发送预编码导频，其中预编码的发射功率 专门针对每个数据流确定导频。 预编码导频的发射功率可以针对每个信道进行单独和独立的自适应控制，以改善信道估计性能。

    Method for generating downlink signal in downlink MIMO system
    97.
    发明授权
    Method for generating downlink signal in downlink MIMO system 有权
    在下行链路MIMO系统中生成下行链路信号的方法

    公开(公告)号：US08705612B2

    公开(公告)日：2014-04-22

    申请号：US13202563

    申请日：2010-02-22

    申请人： Moon Il Lee ,  Wook Bong Lee ,  Ja Ho Koo ,  Hyun Soo Ko ,  Jae Hoon Chung ,  Bin Chul Ihm

    发明人： Moon Il Lee ,  Wook Bong Lee ,  Ja Ho Koo ,  Hyun Soo Ko ,  Jae Hoon Chung ,  Bin Chul Ihm

    IPC分类号： H04B1/66

    CPC分类号： H04L1/0061 ,  H04L1/06

    摘要： A method for generating a downlink signal in a downlink MIMO (Multiple Input Multiple Output) comprises the steps of: mapping at least one transport block to at least one codeword; mapping at least one layer to each codeword; classifying at least one layer mapped to each codeword into a certain number of layer groups and performing layer permutation by the layer groups; and generating an OFDM (Orthogonal Frequency-Division Multiplexing) symbol using a signal which is permutated by the layer groups. A CRC (Cyclic Redundancy Check) is attached by the layer groups.

    摘要翻译： 一种用于在下行链路MIMO（多输入多输出）中产生下行链路信号的方法包括以下步骤：将至少一个传输块映射到至少一个码字; 将至少一个层映射到每个码字; 将映射到每个码字的至少一个层分成一定数量的层组并且由层组执行层排列; 以及使用由层组排列的信号来生成OFDM（正交频分复用）符号。 层组附加CRC（循环冗余校验）。

    WIRELESS COMMUNICATION SYSTEM FOR A HIGH-SPEED OBJECT THAT MOVES ON A FIXED PATH
    98.
    发明申请
    WIRELESS COMMUNICATION SYSTEM FOR A HIGH-SPEED OBJECT THAT MOVES ON A FIXED PATH 有权
    用于在固定路径上移动的高速物体的无线通信系统

    公开(公告)号：US20120219084A1

    公开(公告)日：2012-08-30

    申请号：US13503301

    申请日：2010-10-26

    申请人： Bin Chul Ihm ,  Ji Won Kang ,  Sung Ho Park ,  Wook Bong Lee ,  Moon Il Lee

    发明人： Bin Chul Ihm ,  Ji Won Kang ,  Sung Ho Park ,  Wook Bong Lee ,  Moon Il Lee

    IPC分类号： H04B7/04

    CPC分类号： H04B7/0617 ,  H04B7/0417 ,  H04B7/061 ,  H04B7/063 ,  H04B7/0665 ,  H04B7/0691

    摘要： The present invention relates to a method for sending a data signal from a transmitter to a receiver in a multiple antenna wireless communication system. In particular, the method comprises: sending information about the number of transmission antennas of the transmitter to the receiver; receiving from the receiver information about the number of effective communication links of the transmitter and the receiver; determining a precoding matrix based on the information about the number of effective communication links; and receiving from the receiver the data signal using the precoding matrix, wherein transmission antennas of the transmitter and receiving antennas of the receiver respectively form effective communication links independent of each other.

    摘要翻译： 本发明涉及一种在多天线无线通信系统中从发射机向接收机发送数据信号的方法。 特别地，该方法包括：向接收机发送关于发射机的发送天数的信息; 从接收机接收关于发射机和接收机的有效通信链路数量的信息; 基于有关通信链路的数量的信息来确定预编码矩阵; 并且使用所述预编码矩阵从所述接收机接收所述数据信号，其中所述发射机的发射天线和所述接收机的接收天线分别独立地形成有效的通信链路。

    Method for transmitting data using phase shift based precoding and transceiver supporting the same
    99.
    发明授权
    Method for transmitting data using phase shift based precoding and transceiver supporting the same 有权
    使用基于相移的预编码发送数据的方法和支持该预编码的收发器

    公开(公告)号：US08175182B2

    公开(公告)日：2012-05-08

    申请号：US12312255

    申请日：2007-11-02

    申请人： Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee ,  Hyun Soo Ko ,  Jae Won Chang

    发明人： Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee ,  Hyun Soo Ko ,  Jae Won Chang

    IPC分类号： H04L1/02

    CPC分类号： H04B7/0682 ,  H04B7/0417 ,  H04B7/0465 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0671 ,  H04L27/2626

    摘要： A method of transmitting data using cyclic delay in a multi-antenna system using a plurality of subcarriers and a transceiver supporting the same are disclosed. More particularly, a method of selecting a matrix (second matrix) for transforming a precoding matrix (first matrix) into a unitary matrix from a codebook by a prescribed reference is disclosed. An index for selecting the second matrix is calculated by a prescribed modulo operation in an open loop system or delivered as feedback information in a closed loop system. Diversity can be obtained by switching each column of the selected second matrix in accordance with time. In a multi-user system, a single second matrix can be determined by combining columns of the second matrix selected by each user.

    摘要翻译： 公开了一种使用多个子载波在多天线系统中使用循环延迟发送数据的方法以及支持其的收发机。 更具体地，公开了一种选择用于将预编码矩阵（第一矩阵）从码本转换为规定参考的酉矩阵的矩阵（第二矩阵）的方法。 用于选择第二矩阵的索引通过在开环系统中的规定的模运算来计算，或者作为闭环系统中的反馈信息递送。 通过根据时间切换所选择的第二矩阵的每列，可以获得分集。 在多用户系统中，可以通过组合由每个用户选择的第二矩阵的列来确定单个第二矩阵。

    METHOD FOR TRANSMITTING/RECEIVING DATA IN A MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM USING MULTI-CARRIER
    100.
    发明申请
    METHOD FOR TRANSMITTING/RECEIVING DATA IN A MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM USING MULTI-CARRIER 失效
    使用多载波在多输入多输出系统中发送/接收数据的方法

    公开(公告)号：US20110274200A1

    公开(公告)日：2011-11-10

    申请号：US12674413

    申请日：2008-08-20

    申请人： Moon Il Lee ,  Bin Chul Ihm ,  Hyun Soo Ko ,  Sung Ho Park ,  Wook Bong Lee

    发明人： Moon Il Lee ,  Bin Chul Ihm ,  Hyun Soo Ko ,  Sung Ho Park ,  Wook Bong Lee

    IPC分类号： H04L27/28

    CPC分类号： H04L25/03343 ,  H04L27/2626 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03426

    摘要： A method for transmitting/receiving data in a Multiple Input Multiple Output (MIMO) communication system is disclosed. The data transmission method includes determining a precoding matrix to be a part of a phase-shift-based precoding matrix, determining a first diagonal matrix for phase shift to be a part of the phase-shift-based precoding matrix, determining a unitary matrix to be a part of the phase-shift-based precoding matrix, precoding a transmission symbol for each resource using the phase-shift-based precoding matrix to produce precoded data, and transmitting the precoded data, wherein the phase-shift-based precoding matrix is determined by the product of the precoding matrix, a Hermitian matrix of the unitary matrix, the first diagonal matrix, and the unitary matrix.

    摘要翻译： 公开了一种在多输入多输出（MIMO）通信系统中发送/接收数据的方法。 数据传输方法包括将预编码矩阵确定为基于相移的预编码矩阵的一部分，将相移的第一对角矩阵确定为基于相移的预编码矩阵的一部分，确定酉矩阵 作为基于相移的预编码矩阵的一部分，使用基于相移的预编码矩阵预编码每个资源的传输符号以产生预编码的数据，并发送预编码的数据，其中基于相移的预编码矩阵是 由预编码矩阵的乘积，酉矩阵的Hermitian矩阵，第一对角矩阵和酉矩阵确定。