公开(公告)号：US08654882B2

公开(公告)日：2014-02-18

申请号：US13453464

申请日：2012-04-23

申请人： Hoon Lee ,  Young Jo Bang ,  Seungjae Bang ,  Jung Pil Choi ,  Youn Ok Park ,  Jae Kwon Kim ,  Nulibyul Kim

发明人： Hoon Lee ,  Young Jo Bang ,  Seungjae Bang ,  Jung Pil Choi ,  Youn Ok Park ,  Jae Kwon Kim ,  Nulibyul Kim

IPC分类号： H04B7/02 ,  H04L1/02 ,  H04L27/06

CPC分类号： H04L25/03318 ,  H04B7/0854 ,  H04L25/03286 ,  H04L25/03292 ,  H04L25/03891 ,  H04L25/067

摘要： A receiver in a multiple-input multiple-output (MIMO) system is provided. The receiver includes a channel estimator estimating a channel based on a receiving signal, a minimum mean square error (MMSE) based reciprocal log likelihood ratio (R-LLR) calculator connected with the channel estimator and calculating an R-LLR based on the receiving signal and the estimated channel, and a channel decoder connected with the MMSE based R-LLR calculator and decoding the channel and the receiving signal based on the calculated R-LLR, wherein the R-LLR is calculated based on the reciprocity.

摘要翻译： 提供了一种多输入多输出（MIMO）系统中的接收机。 接收机包括基于接收信号估计信道的信道估计器，与信道估计器连接的基于最小均方误差（MMSE）的倒数似然比（R-LLR）计算器，并基于接收信号计算R-LLR 和估计信道，以及与基于MMSE的R-LLR计算器连接的信道解码器，并且基于所计算的R-LLR对信道和接收信号进行解码，其中基于互易性来计算R-LLR。

公开(公告)号：US20120269248A1

公开(公告)日：2012-10-25

申请号：US13453464

申请日：2012-04-23

申请人： Hoon LEE ,  Young Jo Bang ,  Seungjae Bang ,  Jung Pil Choi ,  Youn Ok Park ,  Jae Kwon Kim ,  Nulibyul Kim

发明人： Hoon LEE ,  Young Jo Bang ,  Seungjae Bang ,  Jung Pil Choi ,  Youn Ok Park ,  Jae Kwon Kim ,  Nulibyul Kim

IPC分类号： H04L27/06 ,  H04B17/00

CPC分类号： H04L25/03318 ,  H04B7/0854 ,  H04L25/03286 ,  H04L25/03292 ,  H04L25/03891 ,  H04L25/067

摘要： A receiver in a multiple-input multiple-output (MIMO) system is provided. The receiver includes a channel estimator estimating a channel based on a receiving signal, a minimum mean square error (MMSE) based reciprocal log likelihood ratio (R-LLR) calculator connected with the channel estimator and calculating an R-LLR based on the receiving signal and the estimated channel, and a channel decoder connected with the MMSE based R-LLR calculator and decoding the channel and the receiving signal based on the calculated R-LLR, wherein the R-LLR is calculated based on the reciprocity.

摘要翻译： 提供了一种多输入多输出（MIMO）系统中的接收机。 接收机包括基于接收信号估计信道的信道估计器，与信道估计器连接的基于最小均方误差（MMSE）的倒数似然比（R-LLR）计算器，并基于接收信号计算R-LLR 和估计信道，以及与基于MMSE的R-LLR计算器连接的信道解码器，并且基于所计算的R-LLR对信道和接收信号进行解码，其中基于互易性来计算R-LLR。

公开(公告)号：US08054909B2

公开(公告)日：2011-11-08

申请号：US12141539

申请日：2008-06-18

申请人： Seung Jae Bahng ,  Jae Kwon Kim ,  Hoon Heo ,  Hyun Myung Wu ,  Youn-Ok Park ,  Young Jo Bang ,  Hyeong Sook Park ,  Hoon Lee ,  Young Ha Lee ,  Jung Pil Choi

发明人： Seung Jae Bahng ,  Jae Kwon Kim ,  Hoon Heo ,  Hyun Myung Wu ,  Youn-Ok Park ,  Young Jo Bang ,  Hyeong Sook Park ,  Hoon Lee ,  Young Ha Lee ,  Jung Pil Choi

IPC分类号： H04L27/00 ,  G06Q30/00

CPC分类号： H04L25/067 ,  H04L25/03203 ,  H04L2025/03426

摘要： The present invention relates to a method of detecting a candidate vector and a method of detecting a transmission symbol using the same. According to an embodiment of the present invention, in a multiple input multiple output (MIMO) system using spatial multiplexing (SM), a receiver selects candidate vectors corresponding to a layer located at a last row among a plurality of rearranged layers, and sequentially ranks constellation dots of a next layer for each of the selected candidate vectors. Then, a plurality of arbitrary constellation dots are selected from the ranked constellation dots, accumulated costs of the arbitrary constellation dots are calculated, and a candidate vector is selected in correspondence with a constellation dot having a minimal accumulated cost. Then, a new arbitrary constellation dot is selected in place of the constellation dot selected as the candidate vector, an accumulated cost of the selected arbitrary constellation dot is compared with accumulated costs of the other arbitrary constellation dots, and another candidate vector is selected.

摘要翻译： 本发明涉及检测候选向量的方法和使用其的发送符号的检测方法。 根据本发明的实施例，在使用空间复用（SM）的多输入多输出（MIMO）系统中，接收机选择与多个重排层中位于最后一行的层相对应的候选向量，并且顺次排列 每个所选候选向量的下一层的星座点。 然后，从分级星座点中选择多个任意星座点，计算任意星座点的累积成本，并且与具有最小累积成本的星座点对应地选择候选矢量。 然后，代替选择为候选矢量的星座点，选择新的任意星座点，将所选择的任意星座点的累积成本与其他任意星座点的累积成本进行比较，并选择另一候选矢量。

公开(公告)号：US08477880B2

公开(公告)日：2013-07-02

申请号：US12629433

申请日：2009-12-02

申请人： Young Jo Bang ,  Young Ha Lee ,  Jung Pil Choi ,  Hoon Lee ,  Seungjae Bahng ,  Youn Ok Park ,  Il Min Kim

发明人： Young Jo Bang ,  Young Ha Lee ,  Jung Pil Choi ,  Hoon Lee ,  Seungjae Bahng ,  Youn Ok Park ,  Il Min Kim

IPC分类号： H04L27/08

CPC分类号： H04L25/0321 ,  H04L27/34 ,  H04L2025/03426

摘要： In a multi-input multi-output communication system receiving signals transmitted through a plurality of transmission antennas by using a plurality of reception antennas, a matrix determining a position of a symbol to be detected from a received signal is calculated at a first symbol detection step, and from the subsequent step, a matrix at the current step is acquired through a simple relationship from the matrix calculated at the previous step to determine a position of a symbol to be detected.

摘要翻译： 在通过使用多个接收天线接收通过多个发送天线发送的信号的多输入多输出通信系统中，在第一符号检测步骤中计算从接收信号确定要检测的符号的位置的矩阵 ，并且从后续步骤，通过从在前一步骤计算的矩阵的简单关系获取当前步骤中的矩阵，以确定要检测的符号的位置。

公开(公告)号：US10321426B2

公开(公告)日：2019-06-11

申请号：US12906496

申请日：2010-10-18

申请人： Chang Wahn Yu ,  Youn Ok Park ,  Chong Hyun Lee ,  Jun-Woo Kim ,  Seungjae Bahng ,  Byung-Han Ryu ,  Jung Pil Choi ,  Young Jo Bang

发明人： Chang Wahn Yu ,  Youn Ok Park ,  Chong Hyun Lee ,  Jun-Woo Kim ,  Seungjae Bahng ,  Byung-Han Ryu ,  Jung Pil Choi ,  Young Jo Bang

IPC分类号： H04J3/06 ,  H04W56/00

摘要： An apparatus and method for detecting synchronization and signals using block data processing in a receiving system are provided. To process an input signal, a cumulative matrix is obtained from an input vector signal for each frame generated from the signal. A primary eigenvector is extracted from the cumulative matrix, and the maximum value of a correlation vector is calculated from the extracted primary eigenvector. A time delay is detected by comparing the calculated maximum value of the correlation vector with a first threshold value, and a delay correlation vector is calculated from the detected time delay. Finally, synchronization and signals are detected by comparing the calculated delay correlation vector with a second threshold value.

公开(公告)号：US20120093261A1

公开(公告)日：2012-04-19

申请号：US13273423

申请日：2011-10-14

申请人： Jun Woo Kim ,  Jung Pil Choi ,  Hyeong Sook Park ,  Eon Young Hong ,  Youn Ok Park

发明人： Jun Woo Kim ,  Jung Pil Choi ,  Hyeong Sook Park ,  Eon Young Hong ,  Youn Ok Park

IPC分类号： H04L27/06 ,  H04L27/00

CPC分类号： H04L5/0007 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2627

摘要： Disclosed herein are a method and an apparatus for transmitting a downlink control signal in a wireless communication system. The apparatus for transmitting a downlink control signal includes: a preamble symbol generator generating preamble orthogonal frequency division multiplexing (OFDM) symbols based on a first pilot pattern among pilot patterns for each of the plurality of transmit antennas; a midamble symbol generator generating midamble OFDM symbols based a second pilot pattern excluding the first pilot pattern from the pilot patterns for each of the plurality of transmit antennas; an IFFT unit performing inverse fast Fourier transform (IFFT) for each transmit antenna on the preamble OFDM symbol and the midamble OFDM symbol; and a plurality of transmit antennas transmitting the preamble OFDM symbols and the midamble OFDM symbols.

摘要翻译： 这里公开了一种用于在无线通信系统中发送下行链路控制信号的方法和装置。 用于发送下行链路控制信号的装置包括：前导码符号生成器，用于在多个发送天线中的每一个的导频模式中基于第一导频模式生成前导码正交频分复用（OFDM）符号; 基于针对所述多个发射天线中的每一个的导频模式，基于不包括所述第一导频模式的第二导频模式生成中间码OFDM符号的中间码符号发生器; IFFT单元对前导OFDM符号和中间码OFDM符号上的每个发射天线进行快速傅立叶逆变换（IFFT）; 以及发送前导OFDM符号和中间码OFDM符号的多个发送天线。

公开(公告)号：US20120051298A1

公开(公告)日：2012-03-01

申请号：US13140334

申请日：2009-07-17

申请人： Jun-Woo Kim ,  Jung Pil Choi ,  Eon Young Hong ,  Youn Ok Park

发明人： Jun-Woo Kim ,  Jung Pil Choi ,  Eon Young Hong ,  Youn Ok Park

IPC分类号： H04W72/04

CPC分类号： H04W72/042

摘要： Provided are a method and an apparatus for transmitting resource allocation information. In the case when a wireless resource for a new terminal is fixedly allocated to a fixed allocation zone, the apparatus for transmitting resource allocation information determines a resource allocation method of allocating the wireless resource and determines an allocation form of a resource that is allocated by a resource allocation method to select any one information displaying method of a plurality of information displaying methods of displaying allocation information on the allocated resource on the basis of the determined resource allocation method and resource allocation form. Next, the resource allocation information is generated and transmitted on the basis of the selected displaying method.

摘要翻译： 提供了一种用于传送资源分配信息的方法和装置。 在将新终端的无线资源固定地分配给固定分配区域的情况下，用于发送资源分配信息的装置决定分配无线资源的资源分配方法，并且确定分配给资源的资源的分配形式 资源分配方法，用于基于所确定的资源分配方法和资源分配形式来选择在所分配的资源上显示分配信息的多种信息显示方法的任何一种信息显示方法。 接下来，基于所选择的显示方法生成并发送资源分配信息。

公开(公告)号：US08908620B2

公开(公告)日：2014-12-09

申请号：US13140334

申请日：2009-07-17

申请人： Jun-Woo Kim ,  Jung Pil Choi ,  Eon Young Hong ,  Youn Ok Park

发明人： Jun-Woo Kim ,  Jung Pil Choi ,  Eon Young Hong ,  Youn Ok Park

IPC分类号： H04W4/00 ,  H04W72/04

CPC分类号： H04W72/042

摘要： Provided are a method and an apparatus for transmitting resource allocation information. In the case when a wireless resource for a new terminal is fixedly allocated to a fixed allocation zone, the apparatus for transmitting resource allocation information determines a resource allocation method of allocating the wireless resource and determines an allocation form of a resource that is allocated by a resource allocation method to select any one information displaying method of a plurality of information displaying methods of displaying allocation information on the allocated resource on the basis of the determined resource allocation method and resource allocation form. Next, the resource allocation information is generated and transmitted on the basis of the selected displaying method.

摘要翻译： 提供了一种用于传送资源分配信息的方法和装置。 在将新终端的无线资源固定地分配给固定分配区域的情况下，用于发送资源分配信息的装置决定分配无线资源的资源分配方法，并且确定分配给资源的资源的分配形式 资源分配方法，用于基于所确定的资源分配方法和资源分配形式来选择在所分配的资源上显示分配信息的多种信息显示方法的任何一种信息显示方法。 接下来，基于所选择的显示方法生成并发送资源分配信息。

公开(公告)号：US08081577B2

公开(公告)日：2011-12-20

申请号：US12141673

申请日：2008-06-18

申请人： Seung Jae Bahng ,  Jung Pil Choi ,  Youn-Ok Park

发明人： Seung Jae Bahng ,  Jung Pil Choi ,  Youn-Ok Park

IPC分类号： H04L12/56 ,  H04J1/16

CPC分类号： H04L25/067 ,  H04L25/03006 ,  H04L2025/03426

摘要： The present invention relates to a method of calculating a soft value and a method of detecting a transmission signal. The present invention estimates a channel on the basis of a received signal and rearranges a plurality of data streams. Further, a plurality of substitute vectors are selected from the rearranged data streams and a metric corresponding to each of the substitute vector is calculated. Further, a threshold value is calculated from a metric calculated for each of the substitute vectors and a soft value of each bit of a transmission signal is calculated from the metric and threshold value corresponding to each of the substitute vectors.

摘要翻译： 本发明涉及计算软值的方法和检测发送信号的方法。 本发明基于接收到的信号估计信道并重新排列多个数据流。 此外，从重新布置的数据流中选择多个替代矢量，并且计算与每个替代矢量对应的度量。 此外，根据针对每个替代矢量计算的度量来计算阈值，并且从与每个替代矢量对应的度量和阈值计算发送信号的每个比特的软值。