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    Method for receiving signals in multiple user system
    42.
    发明授权
    Method for receiving signals in multiple user system 有权
    在多用户系统中接收信号的方法

    公开(公告)号：US07835260B2

    公开(公告)日：2010-11-16

    申请号：US12298219

    申请日：2007-04-20

    申请人： Jin Young Chun ,  Jae Won Chang ,  Jin Hyuk Jung ,  Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee

    发明人： Jin Young Chun ,  Jae Won Chang ,  Jin Hyuk Jung ,  Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee

    IPC分类号： H04J11/00

    CPC分类号： H04B7/0634 ,  H04B7/028 ,  H04B7/0434 ,  H04B7/0452 ,  H04B7/12

    摘要： This document is related to a method for receiving signals in multi-user system, the method comprising: receiving signals form 2 or more mobile stations using ‘k’-th radio resource and ‘k+m’-th radio resource; estimating a channel matrix using the received signals; calculating a weight matrix so that the channel matrix have an orthogonality to the signals from each of the mobile stations; transmitting the weight matrix to each of the mobile stations; and receiving signals that the weight matrix is applied by each of the mobile stations. By doing so, we can increase the transmission efficiency through obtaining both orthogonality and diversity gain in the multi-user MIMO system.

    摘要翻译： 本文件涉及一种用于在多用户系统中接收信号的方法，所述方法包括：使用第k个无线电资源和第k + m个无线电资源从2个或更多的移动台接收信号; 使用所接收的信号估计信道矩阵; 计算权重矩阵，使得信道矩阵具有来自每个移动站的信号的正交性; 将权重矩阵发送到每个移动站; 以及接收每个移动台应用权重矩阵的信号。 通过这样做，我们可以通过在多用户MIMO系统中获得正交性和分集增益来提高传输效率。

    METHOD OF TRANSMITTING CHANNEL QUALITY INDICATOR
    43.
    发明申请
    METHOD OF TRANSMITTING CHANNEL QUALITY INDICATOR 失效
    发送信道质量指标的方法

    公开(公告)号：US20100254272A1

    公开(公告)日：2010-10-07

    申请号：US12448677

    申请日：2008-03-28

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

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

    IPC分类号： H04J1/16 ,  H04W4/00

    CPC分类号： H04L1/0029 ,  H04L1/0027 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/006

    摘要： A method of transmitting channel quality indicator (CQI) includes obtaining CQI of each, of the plurality of sub-bands, selecting a first sub-band having the best CQI of the plurality of sub- bands, transmitting the best CQI of the first sub-band at a first transmission cycle and transmitting a difference value between the best CQI of the first sub-band and a CQI of the first sub-band at a second transmission cycle. Signalling overhead due to CQI transmission can be reduced.

    摘要翻译： 发送信道质量指示符（CQI）的方法包括获得多个子带中的每一个的CQI，选择具有多个子带中最佳CQI的第一子带，发送第一子带的最佳CQI 在第一传输周期发送第一子带的最佳CQI和第一子带的CQI之间的差值，并以第二传输周期发送。 可以减少由CQI传输引起的信令开销。

    DATA TRANSMITTING AND RECEIVING METHOD USING PHASE SHIFT BASED PRECODING AND TRANSCEIVER SUPPORTING THE SAME
    46.
    发明申请
    DATA TRANSMITTING AND RECEIVING METHOD USING PHASE SHIFT BASED PRECODING AND TRANSCEIVER SUPPORTING THE SAME 有权
    使用基于相位移位的数据发送和接收方法及其支持的收发器

    公开(公告)号：US20100014608A1

    公开(公告)日：2010-01-21

    申请号：US12565678

    申请日：2009-09-23

    申请人： Moon Il LEE ,  Bin Chul Ihm ,  Jin Young Chun ,  Wook Bong Lee

    发明人： Moon Il LEE ,  Bin Chul Ihm ,  Jin Young Chun ,  Wook Bong Lee

    IPC分类号： H04L25/03 ,  H04L27/00

    CPC分类号： H04B7/0671 ,  H04B7/0417 ,  H04B7/0465 ,  H04B7/0639 ,  H04B7/0663 ,  H04B7/0682 ,  H04L1/06 ,  H04L1/1819 ,  H04L5/0023 ,  H04L25/03898 ,  H04L27/2626

    摘要： A method for performing a precoding based on a generalized phase shift or a precoding based on an extended phase shift in a Multi-Input Multi-Output (MIMO) system employing several sub-carriers, and a transceiver for supporting the same are disclosed. A phase-shift-based precoding matrix is generalized by multiplying a diagonal matrix for a phase shift by a unitary matrix for maintaining orthogonality between sub-carriers. In this case, a diagonal matrix part may be extended by multiplying a precoding matrix for removing interference between sub-carriers by a diagonal matrix for a phase shift. By generalization and extension of the phase-shift-based precoding, a transceiver is more simplified, and communication efficiency increases.

    摘要翻译： 公开了一种用于在采用多个子载波的多输入多输出（MIMO）系统中基于广义相移或基于扩展相移的预编码进行预编码的方法，以及用于支持它的收发器。 基于相移的预编码矩阵通过将用于相移的对角矩阵乘以酉矩阵来推广，以维持子载波之间的正交性。 在这种情况下，可以通过将预编码矩阵乘以用于去除相移之间的对角线矩阵的子载波之间的干扰来扩展对角矩阵部分。 通过对基于相移的预编码的泛化和扩展，收发器更加简化，并且通信效率提高。

    Method of transmitting ACK/NACK signal in wireless communication system
    49.
    发明授权
    Method of transmitting ACK/NACK signal in wireless communication system 失效
    在无线通信系统中发送ACK / NACK信号的方法

    公开(公告)号：US08681718B2

    公开(公告)日：2014-03-25

    申请号：US12743051

    申请日：2008-11-26

    申请人： Jin Young Chun ,  Bin Chul Ihm ,  Wook Bong Lee ,  Ki Seon Ryu

    发明人： Jin Young Chun ,  Bin Chul Ihm ,  Wook Bong Lee ,  Ki Seon Ryu

    IPC分类号： H04W4/00

    CPC分类号： H04L5/0016 ,  H04L1/1607 ,  H04L5/005

    摘要： A method of transmitting an ACK/NACK signal via an ACK/NACK channel including one or more tiles comprised of a plurality of OFDM symbols in a time domain and a plurality of subcarriers in a frequency domain in a wireless communication system includes generating a first codeword by applying a first spreading code to data symbols and pilot symbols, wherein the tile includes a plurality of data subcarriers and a plurality of pilot subcarriers, the data symbols are allocated to the plurality of data subcarriers and the pilot symbols are allocated to the plurality of pilot subcarriers, generating a second codeword by allocating data symbols applied a second spreading code to the plurality of data subcarriers, and transmitting the first and second codewords.

    摘要翻译： 一种在无线通信系统中经由包括由时域中的多个OFDM符号和频域中的多个子载波组成的一个或多个瓦片的ACK / NACK信道发送ACK / NACK信号的方法包括：生成第一码字 通过对数据符号和导频符号应用第一扩展码，其中所述瓦片包括多个数据子载波和多个导频子载波，所述数据符号被分配给所述多个数据子载波，并且所述导频符号被分配给所述多个 导频子载波，通过向多个数据子载波分配施加第二扩展码的数据符号，并发送第一和第二码字来产生第二码字。