公开(公告)号：US08559566B2

公开(公告)日：2013-10-15

申请号：US12734984

申请日：2008-09-01

申请人： Chang Wahn Yu ,  Dong Weon Yoon ,  Kwang Min Hyun ,  Youn Ok Park ,  Dae Ho Kim ,  Jun-Woo Kim ,  Hyeong Sook Park ,  Seung Jae Bahng ,  Young Jo Bang ,  Kyung Yeol Sohn

发明人： Chang Wahn Yu ,  Dong Weon Yoon ,  Kwang Min Hyun ,  Youn Ok Park ,  Dae Ho Kim ,  Jun-Woo Kim ,  Hyeong Sook Park ,  Seung Jae Bahng ,  Young Jo Bang ,  Kyung Yeol Sohn

IPC分类号： H04L27/06

CPC分类号： H04L25/067 ,  H04L1/005

摘要： Disclosed is a method and apparatus for composing a received symbol signal modulated with a bit reflected Gray code into bit information. According to an embodiment of the present invention, a positive integer of the received symbol signal having bits is assigned according to the Gray mapping rule, and a sign is determined. A value that is indicative of an arrangement of the bits constituting the received symbol signal is calculated. A boundary value in at least one bit group consisting of the bits constituting the received symbol signal is acquired, and a difference from an absolute value of the received symbol signal is calculated. The received symbol signal is converted into information per bit using a value of the received symbol signal based on the positive integer and the determined sign, the value that is indicative of the bit arrangement, and the difference from the absolute value. Therefore, it is possible to reduce complexity in bitwise decomposition for an iterative decoder inevitably used in a receiver.

摘要翻译： 公开了一种用于将被反映格雷码的位进行调制的接收符号信号组合成比特信息的方法和装置。 根据本发明的实施例，根据Gray映射规则分配具有位的接收符号信号的正整数，并且确定符号。 计算表示构成接收符号信号的位的排列的值。 获取由构成接收到的符号信号的比特组构成的至少一个比特组中的边界值，并且计算与接收到的符号信号的绝对值的差值。 基于正整数和确定的符号，指示比特排列的值以及与绝对值的差，使用接收到的符号信号的值将接收的符号信号转换为每位的信息。 因此，可以降低在接收机中不可避免地使用的迭代解码器的逐位分解的复杂度。

公开(公告)号：US20110103521A1

公开(公告)日：2011-05-05

申请号：US12734984

申请日：2008-09-01

申请人： Chang Wahn YU ,  Dong Weon Yoon ,  Kwang Min Hyun ,  Youn Ok Park ,  Dae Ho Kim ,  Jun-Woo Kim ,  Hyeong Sook Park ,  Seung Jae Bahng ,  Young Jo Bang ,  Kyung Yeol Sohn

发明人： Chang Wahn YU ,  Dong Weon Yoon ,  Kwang Min Hyun ,  Youn Ok Park ,  Dae Ho Kim ,  Jun-Woo Kim ,  Hyeong Sook Park ,  Seung Jae Bahng ,  Young Jo Bang ,  Kyung Yeol Sohn

IPC分类号： H04L27/06

CPC分类号： H04L25/067 ,  H04L1/005

摘要： Disclosed is a method and apparatus for composing a received symbol signal modulated with a bit reflected Gray code into bit information. According to an embodiment of the present invention, a positive integer of the received symbol signal having bits is assigned according to the Gray mapping rule, and a sign is determined. A value that is indicative of an arrangement of the bits constituting the received symbol signal is calculated. A boundary value in at least one bit group consisting of the bits constituting the received symbol signal is acquired, and a difference from an absolute value of the received symbol signal is calculated. The received symbol signal is converted into information per bit using a value of the received symbol signal based on the positive integer and the determined sign, the value that is indicative of the bit arrangement, and the difference from the absolute value. Therefore, it is possible to reduce complexity in bitwise decomposition for an iterative decoder inevitably used in a receiver.

摘要翻译： 公开了一种用于将被反映格雷码的位进行调制的接收符号信号组合成比特信息的方法和装置。 根据本发明的实施例，根据Gray映射规则分配具有位的接收符号信号的正整数，并且确定符号。 计算表示构成接收符号信号的位的排列的值。 获取由构成接收到的符号信号的比特组构成的至少一个比特组中的边界值，并且计算与接收到的符号信号的绝对值的差值。 基于正整数和确定的符号，指示比特排列的值以及与绝对值的差，使用接收到的符号信号的值将接收的符号信号转换为每位的信息。 因此，可以降低在接收机中不可避免地使用的迭代解码器的逐位分解的复杂度。

公开(公告)号：US08160174B2

公开(公告)日：2012-04-17

申请号：US12627506

申请日：2009-11-30

申请人： Young Jo Bang ,  Hyeong Sook Park ,  Jun-Woo Kim ,  Kyung Yeol Sohn ,  Chang Wahn Yu ,  Youn Ok Park ,  Jee Hwan Ahn ,  Il Min Kim

发明人： Young Jo Bang ,  Hyeong Sook Park ,  Jun-Woo Kim ,  Kyung Yeol Sohn ,  Chang Wahn Yu ,  Youn Ok Park ,  Jee Hwan Ahn ,  Il Min Kim

IPC分类号： H04B7/02 ,  H04L5/12 ,  H04L27/06

CPC分类号： H04L25/067 ,  H04B7/0413

摘要： Disclosed is a method of detecting signals at a receiver of a communication system with a multiple input multiple output antenna. With the signal detection method, a square of the distance between a received signal vector and a channel status-considered transmission symbol vector is calculated first, and the square of the distance is then classified into first and second components. The first component is minimized to calculate a plurality of first soft symbol estimates. A solution set of the first component is calculated on the basis of the plurality of first soft symbol estimates. The second component is minimized to calculate a plurality of second soft symbol estimates. A solution set of the second component is calculated on the basis of the plurality of second soft symbol estimates. A final solution set is calculated by doing the sum of the first component solution set and the second component solution.

摘要翻译： 公开了一种在具有多输入多输出天线的通信系统的接收机处检测信号的方法。 利用信号检测方法，首先计算接收信号矢量和通道状态考虑的发送符号向量之间的距离的平方，然后将距离的平方分成第一和第二分量。 将第一分量最小化以计算多个第一软符号估计。 基于多个第一软符号估计来计算第一分量的解集合。 将第二分量最小化以计算多个第二软符号估计。 基于多个第二软符号估计来计算第二分量的解集合。 通过执行第一分量解集合和第二分量解的和来计算最终解集。

公开(公告)号：US20090135964A1

公开(公告)日：2009-05-28

申请号：US12141382

申请日：2008-06-18

申请人： Seung Jae Bahng ,  Jae Kwon Kim ,  Hoon Heo ,  Hyun Myung Wu ,  Youn Ok Park ,  Dae Ho Kim ,  Kyung Yeol Sohn ,  Chang Wahn Yu ,  Jun-Woo Kim ,  Eon Young Hong

发明人： Seung Jae Bahng ,  Jae Kwon Kim ,  Hoon Heo ,  Hyun Myung Wu ,  Youn Ok Park ,  Dae Ho Kim ,  Kyung Yeol Sohn ,  Chang Wahn Yu ,  Jun-Woo Kim ,  Eon Young Hong

IPC分类号： H03D1/00

CPC分类号： H04L1/0054

摘要： The present invention relates to a method of calculating a log-likelihood ratio and a method of detecting a transmission signal. According to the present invention, when a transmission symbol candidate vector is detected on the basis of a received signal, a threshold value and an ML metric of each transmission symbol candidate vector are calculated and the ML metric that is larger than the threshold value is updated by the threshold value. Further, a log-likelihood ratio of the transmission signal bit is calculated using the updated ML metric and the threshold value, and a transmission signal is detected using the log-likelihood ratio.

摘要翻译： 本发明涉及计算对数似然比的方法和检测发送信号的方法。 根据本发明，当基于接收信号检测到发送符号候选向量时，计算每个发送符号候选向量的阈值和ML度量，并且更新大于阈值的ML度量 通过阈值。 此外，使用更新的ML度量和阈值来计算发送信号比特的对数似然比，并且使用对数似然比来检测发送信号。

公开(公告)号：US08135099B2

公开(公告)日：2012-03-13

申请号：US12127342

申请日：2008-05-27

申请人： Young Jo Bang ,  Chang Wahn Yu ,  Seung Jae Bahng ,  Dae Ho Kim ,  Youn Ok Park ,  Jee Hwan Ahn ,  Il Min Kim

发明人： Young Jo Bang ,  Chang Wahn Yu ,  Seung Jae Bahng ,  Dae Ho Kim ,  Youn Ok Park ,  Jee Hwan Ahn ,  Il Min Kim

IPC分类号： H04B1/10

CPC分类号： H04B7/0413 ,  H04B7/0854

摘要： The present invention relates to a transmission symbol detection method in a multiple antenna system. In the present invention, when a channel matrix is estimated through channel estimation, a receiving side calculates a Q matrix and an R matrix through QR decomposition that is more simplified than a typical QR decomposition from an augmented channel matrix that includes the estimated channel matrix. In addition, the receiving side detects symbols having the minimum Euclidean metric by using the two matrixes, as transmission symbols.

摘要翻译： 本发明涉及多天线系统中的发射符号检测方法。 在本发明中，当通过信道估计来估计信道矩阵时，接收侧通过QR分解来计算Q矩阵和R矩阵，其比来自包括估计信道矩阵的增强信道矩阵的典型QR分解更简化。 此外，接收端通过使用两个矩阵来检测具有最小欧几里德量度的符号作为发送符号。

公开(公告)号：US08724687B2

公开(公告)日：2014-05-13

申请号：US13441212

申请日：2012-04-06

申请人： Young Jo Bang ,  Hyeong Sook Park ,  Eon Young Hong ,  Kyung Yeol Sohn ,  Jun Woo Kim ,  Youn Ok Park ,  Jae Kwon Kim

发明人： Young Jo Bang ,  Hyeong Sook Park ,  Eon Young Hong ,  Kyung Yeol Sohn ,  Jun Woo Kim ,  Youn Ok Park ,  Jae Kwon Kim

IPC分类号： H03H7/30

CPC分类号： H04L25/03159 ,  H04L2025/03414

摘要： A data processing method, an equalizer, and a receiver in a wireless communication system including a relay station are provided. The data processing method includes: receiving a base station signal from a base station; receiving a relay station signal from a relay station; determining a propagation delay between the base station signal and the relay station signal; generating an equalizing signal in which interference generated between the base station signal and the relay station signal is alleviated in consideration of the propagation delay; and recovering information bits transmitted by the base station from the equalizing signal. According to an exemplary embodiment of the present invention, it is possible to alleviate performance deterioration due to an interference problem generated in a relay system.

摘要翻译： 提供了包括中继站的无线通信系统中的数据处理方法，均衡器和接收机。 数据处理方法包括：从基站接收基站信号; 从中继站接收中继站信号; 确定所述基站信号与所述中继站信号之间的传播延迟; 产生均衡信号，考虑到传播延迟，减轻基站信号与中继站信号之间产生的干扰; 以及从所述均衡信号恢复由所述基站发送的信息比特。 根据本发明的示例性实施例，可以减轻由于中继系统中产生的干扰问题导致的性能劣化。

公开(公告)号：US20120257669A1

公开(公告)日：2012-10-11

申请号：US13441212

申请日：2012-04-06

申请人： Young Jo BANG ,  Hyeong Sook Park ,  Eon Young Hong ,  Kyung Yeol Sohn ,  Jun Woo Kim ,  Youn Ok Park ,  Jae Kwon Kim

发明人： Young Jo BANG ,  Hyeong Sook Park ,  Eon Young Hong ,  Kyung Yeol Sohn ,  Jun Woo Kim ,  Youn Ok Park ,  Jae Kwon Kim

IPC分类号： H04L27/01 ,  H04B15/00

CPC分类号： H04L25/03159 ,  H04L2025/03414

摘要： A data processing method, an equalizer, and a receiver in a wireless communication system including a relay station are provided. The data processing method includes: receiving a base station signal from a base station; receiving a relay station signal from a relay station; determining a propagation delay between the base station signal and the relay station signal; generating an equalizing signal in which interference generated between the base station signal and the relay station signal is alleviated in consideration of the propagation delay; and recovering information bits transmitted by the base station from the equalizing signal. According to an exemplary embodiment of the present invention, it is possible to alleviate performance deterioration due to an interference problem generated in a relay system.

摘要翻译： 提供了包括中继站的无线通信系统中的数据处理方法，均衡器和接收机。 数据处理方法包括：从基站接收基站信号; 从中继站接收中继站信号; 确定所述基站信号与所述中继站信号之间的传播延迟; 产生均衡信号，考虑到传播延迟，减轻基站信号与中继站信号之间产生的干扰; 以及从所述均衡信号恢复由所述基站发送的信息比特。 根据本发明的示例性实施例，可以减轻由于中继系统中产生的干扰问题导致的性能劣化。

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：US08379691B2

公开(公告)日：2013-02-19

申请号：US12212433

申请日：2008-09-17

申请人： Chang Wahn Yu ,  Kyung Yeol Sohn ,  Hyuk Jun Oh ,  Youn Ok Park

发明人： Chang Wahn Yu ,  Kyung Yeol Sohn ,  Hyuk Jun Oh ,  Youn Ok Park

IPC分类号： H04B1/00 ,  H04L27/28 ,  H04J11/00

CPC分类号： H04L25/0244 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0228

摘要： The present invention relates to a method and apparatus for estimating a channel in a mobile communication network. In particular, the present invention relates to a method of estimating a channel under a channel environment where interference between neighboring base stations exists in a mobile communication network using an orthogonal frequency division multiplexing (OFDM) method. In order to estimate a channel, one cluster is divided into two sub-clusters, and pilot sub-carrier signals included in at least one sub-cluster in an OFDM symbol direction are used. Therefore, it is possible to further improve performance as compared to a method of estimating a channel by using pilot sub-carriers included in one cluster.

摘要翻译： 本发明涉及一种用于估计移动通信网络中的信道的方法和装置。 具体地说，本发明涉及一种使用正交频分复用（OFDM）方法估计在移动通信网络中存在相邻基站之间的干扰的信道环境下的信道的方法。 为了估计信道，一个簇被划分成两个子簇，并且使用包括在OFDM符号方向上的至少一个子簇中的导频子载波信号。 因此，与通过使用包括在一个簇中的导频子载波来估计信道的方法相比，可以进一步提高性能。

公开(公告)号：US20130003897A1

公开(公告)日：2013-01-03

申请号：US13458261

申请日：2012-04-27

申请人： Jun Woo KIM ,  Kyung Yeol Sohn ,  Hoon Lee ,  Youn Ok Park

发明人： Jun Woo KIM ,  Kyung Yeol Sohn ,  Hoon Lee ,  Youn Ok Park

IPC分类号： H04L27/06 ,  H03D1/00

CPC分类号： H04L27/2607 ,  H04L5/0035 ,  H04L27/2662 ,  H04L27/2691

摘要： There is provided a method and apparatus in which a user equipment demodulates a downlink signal in a wireless communication system. The user equipment receives a first orthogonal frequency division multiplexing (OFDM) signal from a first node serving the mobile station, receives a second OFDM signal from a second node different from the first node, and demodulates the first OFDM signal and the second OFDM signal in a fast Fourier transform (FFT) section. The first OFDM signal and the second OFDM signal are either normal mode signals each having a first cyclic prefix (CP) or cooperative mode signals each having a second CP, and the second CP has a longer length than the first CP.

摘要翻译： 提供了一种在无线通信系统中用户设备解调下行链路信号的方法和装置。 用户设备从服务于移动台的第一节点接收第一正交频分复用（OFDM）信号，从不同于第一节点的第二节点接收第二OFDM信号，并且解调第一OFDM信号和第二OFDM信号 快速傅里叶变换（FFT）部分。 第一OFDM信号和第二OFDM信号是均具有第一循环前缀（CP）或每个具有第二CP的协作模式信号的正常模式信号，并且第二CP具有比第一CP更长的长度。