公开(公告)号：US08290068B2

公开(公告)日：2012-10-16

申请号：US12176734

申请日：2008-07-21

申请人： Eun-Seok Ko ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  In-Soo Hwang ,  Tak-Ki Yu

发明人： Eun-Seok Ko ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  In-Soo Hwang ,  Tak-Ki Yu

IPC分类号： H04K1/10

CPC分类号： H04L25/0242 ,  H04B7/0854 ,  H04L27/066 ,  H04L2025/03426

摘要： A Maximum Likelihood (ML) detection apparatus and method in a wireless communication system are provided, in which a Euclidean distance are calculated using at least one of channel matrix information, noise power information and modulation order information of each stream, Pairwise Error Rate (PER) are calculated using the Euclidean distance, an error probability of the each stream is calculated using the PER, the error probability of the each stream is ordered and sorted, and ML detection is performed using a result of the ordering and sorting.

摘要翻译： 提供了一种无线通信系统中的最大似然（ML）检测装置和方法，其中使用信道矩阵信息，噪声功率信息和每个流的调制阶数信息中的至少一个来计算欧几里得距离，成对误差率 ）使用欧氏距离计算，使用PER计算每个流的误差概率，对每个流的误差概率进行排序和排序，并且使用排序和排序的结果来执行ML检测。

公开(公告)号：US08238471B2

公开(公告)日：2012-08-07

申请号：US12165884

申请日：2008-07-01

申请人： In-Soo Hwang ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  Eun-Seok Ko ,  Vahid Tarokh

发明人： In-Soo Hwang ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  Eun-Seok Ko ,  Vahid Tarokh

IPC分类号： H04L25/49

CPC分类号： H04W52/42 ,  H04L25/0206

摘要： An apparatus and a method for interference cancellation in a transmitting end of a multi-antenna system are provided. A precode is generated which maximizes a diversity gain of one or more receive antennas using channel information of the receive antennas to be serviced. Transmit powers of the receive antennas are updated by taking into account a power loss and a shaping loss according to a dirty paper coding. Transmit signals are precoded by updating the precode according to the updated transmit powers. The dirty paper coding is performed on the precoded transmit signals to be transmitted to the receive antennas.

摘要翻译： 提供了一种用于多天线系统的发送端的干扰消除的装置和方法。 生成使用要维护的接收天线的信道信息使一个或多个接收天线的分集增益最大化的预编码。 通过根据脏纸编码考虑功率损耗和成形损耗来更新接收天线的发射功率。 通过根据更新的发射功率更新预编码来对发射信号进行预编码。 对要发送到接收天线的预编码的发送信号执行脏纸编码。

公开(公告)号：US08009780B2

公开(公告)日：2011-08-30

申请号：US12217868

申请日：2008-07-09

申请人： Eun-Seok Ko ,  Tak-Ki Yu ,  Yung-Soo Kim ,  Myeon-Kyun Cho

发明人： Eun-Seok Ko ,  Tak-Ki Yu ,  Yung-Soo Kim ,  Myeon-Kyun Cho

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08

CPC分类号： H04L27/0008 ,  H04B7/0434 ,  H04B7/0619 ,  H04B7/063 ,  H04B7/0857 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/206

摘要： A multiple-input multiple-output (MIMO) wireless communication system includes a first calculator for calculating pairwise error rates (PERs) for each modulation scheme combination which comprise elements smaller than or equal to receive antennas in number; a second calculator for calculating symbol error rates (SERs) for the each modulation scheme combination using the PERs; a converter for converting the SERs to effective signal to noise ratios (SNRs); and a determiner for determining one among sets of effective SNR per stream acquired from the modulation scheme combinations, as a final effective SNR per stream.

摘要翻译： 多输入多输出（MIMO）无线通信系统包括：第一计算器，用于针对每个调制方案组合计算成对误差率（PERs），所述组合包括小于或等于接收天线数量的元件; 用于使用PERs来计算每个调制方案组合的符号错误率（SER）的第二计算器; 用于将SER转换为有效信噪比（SNR）的转换器; 以及确定器，用于确定从调制方案组合获取的每个流的有效SNR集合中的一个，作为每个流的最终有效SNR。

公开(公告)号：US20090022251A1

公开(公告)日：2009-01-22

申请号：US12176734

申请日：2008-07-21

申请人： Eun-Seok Ko ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  In-Soo Hwang ,  Tak-Ki Yu

发明人： Eun-Seok Ko ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  In-Soo Hwang ,  Tak-Ki Yu

IPC分类号： H04L27/06 ,  H03D1/04 ,  H04B1/10

CPC分类号： H04L25/0242 ,  H04B7/0854 ,  H04L27/066 ,  H04L2025/03426

摘要： A Maximum Likelihood (ML) detection apparatus and method in a wireless communication system are provided, in which a Euclidean distance are calculated using at least one of channel matrix information, noise power information and modulation order information of each stream, Pairwise Error Rate (PER) are calculated using the Euclidean distance, an error probability of the each stream is calculated using the PER, the error probability of the each stream is ordered and sorted, and ML detection is performed using a result of the ordering and sorting.

摘要翻译： 提供了一种无线通信系统中的最大似然（ML）检测装置和方法，其中使用信道矩阵信息，噪声功率信息和每个流的调制阶数信息中的至少一个来计算欧几里得距离，成对误差率 ）使用欧氏距离计算，使用PER计算每个流的误差概率，对每个流的误差概率进行排序和排序，并且使用排序和排序的结果来执行ML检测。

公开(公告)号：US20090010359A1

公开(公告)日：2009-01-08

申请号：US12165884

申请日：2008-07-01

申请人： In-Soo Hwang ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  Eun-Seok Ko ,  Vahid Tarokh

发明人： In-Soo Hwang ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  Eun-Seok Ko ,  Vahid Tarokh

IPC分类号： H04L27/04

CPC分类号： H04W52/42 ,  H04L25/0206

摘要： An apparatus and a method for interference cancellation in a transmitting end of a multi-antenna system are provided. A precode is generated which maximizes a diversity gain of one or more receive antennas using channel information of the receive antennas to be serviced. Transmit powers of the receive antennas are updated by taking into account a power loss and a shaping loss according to a dirty paper coding. Transmit signals are precoded by updating the precode according to the updated transmit powers. The dirty paper coding is performed on the precoded transmit signals to be transmitted to the receive antennas.

摘要翻译： 提供了一种用于多天线系统的发送端的干扰消除的装置和方法。 生成使用要维护的接收天线的信道信息使一个或多个接收天线的分集增益最大化的预编码。 通过根据脏纸编码考虑功率损耗和成形损耗来更新接收天线的发射功率。 通过根据更新的发射功率更新预编码来对发射信号进行预编码。 对要发送到接收天线的预编码的发送信号执行脏纸编码。

公开(公告)号：US20090010349A1

公开(公告)日：2009-01-08

申请号：US12166750

申请日：2008-07-02

申请人： Eun-Seok Ko ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  In-Soo Hwang ,  Vahid Tarokh

发明人： Eun-Seok Ko ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  In-Soo Hwang ,  Vahid Tarokh

IPC分类号： H04L27/28

CPC分类号： H04L25/0204 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/06 ,  H04L1/20

摘要： An apparatus and method for generating an effective Signal to Noise Ratio (SNR) per stream in a Multiple Input Multiple Output (MIMO) wireless communication system is disclosed. The apparatus includes a selector, a calculator, a generator, and a decider. The selector selects effective streams among whole streams. The calculator calculates a relative SNR rate between the effective streams. The generator generates an equation having as a solution an SNR of a first effective stream. The decider decides an SNR per effective stream using the solution of the equation and the relative SNR rate.

摘要翻译： 公开了一种用于在多输入多输出（MIMO）无线通信系统中产生每个流的有效信噪比（SNR）的装置和方法。 该装置包括选择器，计算器，发生器和决定器。 选择器在整个流中选择有效的流。 计算器计算有效流之间的相对SNR率。 发生器产生具有作为第一有效流的SNR的解的等式。 决策者使用公式的解和相对SNR率决定每个有效流的SNR。

公开(公告)号：US08472566B2

公开(公告)日：2013-06-25

申请号：US12424898

申请日：2009-04-16

申请人： Eun-Seok Ko ,  Eun-Yong Kim ,  Yung-Soo Kim

发明人： Eun-Seok Ko ,  Eun-Yong Kim ,  Yung-Soo Kim

IPC分类号： H04L27/06 ,  H04L25/02 ,  H04L5/00 ,  H04B7/04 ,  H04B7/02 ,  H04B7/08

CPC分类号： H04L25/0202 ,  H04B7/024 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0851 ,  H04B7/086 ,  H04L5/0007 ,  H04L5/0048

摘要： An apparatus and method for reducing pilot overhead in a multi-antenna system are provided. The method generates postcodes and pre-codes for streams used to transmit signals to at least two receivers. The method allocates a pilot signal to at least one of the streams, and allocates an additional pilot signal shared by at least one of the streams. The method precodes the pilot signal allocated to at least one of the streams, the additional pilot signal, and data to be transmitted to each of the receivers, based on the pre-code for each of the streams, prior to transmission.

摘要翻译： 提供了一种用于减少多天线系统中的导频开销的装置和方法。 该方法为用于将信号发送到至少两个接收机的流产生后代码和预编码。 该方法将导频信号分配给至少一个流，并且分配由至少一个流共享的附加导频信号。 在传输之前，该方法基于每个流的预编码来对分配给至少一个流的导频信号，附加导频信号和要发送到每个接收机的数据进行预编码。

公开(公告)号：US20100048233A1

公开(公告)日：2010-02-25

申请号：US12583417

申请日：2009-08-20

申请人： Yu-Seok Kim ,  Eun-Yong Kim ,  Yung-Soo Kim ,  Sang-Min Lee ,  Eun-Seok Ko

发明人： Yu-Seok Kim ,  Eun-Yong Kim ,  Yung-Soo Kim ,  Sang-Min Lee ,  Eun-Seok Ko

IPC分类号： H04B15/00

CPC分类号： H04W4/20

摘要： A Mobile Station (MS) is operable to select a precoding matrix in a multi-antenna wireless communication system. The method includes receiving, from a serving Base Station (BS), information on a precoding matrix of which use is prohibited and a precoding matrix to be used by a neighbor BS, estimating an interference signal for the precoding matrix to be used by the neighbor BS, and selecting a precoding matrix to be used by the serving BS by considering the estimated interference signal from the remaining precoding matrixes except for the precoding matrix of which use is prohibited among precoding matrixes used by the serving BS.

摘要翻译： 移动站（MS）可操作以在多天线无线通信系统中选择预编码矩阵。 该方法包括从服务基站（BS）接收关于禁止使用的预编码矩阵的信息和由邻居BS使用的预编码矩阵，估计由邻居使用的预编码矩阵的干扰信号 BS，并且通过考虑来自剩余的预编码矩阵的估计干扰信号，并且由服务BS使用的预编码矩阵，除了由服务BS使用的预编码矩阵之中禁止使用的预编码矩阵之外，选择预编码矩阵。

公开(公告)号：US08862070B2

公开(公告)日：2014-10-14

申请号：US12583417

申请日：2009-08-20

申请人： Yu-Seok Kim ,  Eun-Yong Kim ,  Yung-Soo Kim ,  Sang-Min Lee ,  Eun-Seok Ko

发明人： Yu-Seok Kim ,  Eun-Yong Kim ,  Yung-Soo Kim ,  Sang-Min Lee ,  Eun-Seok Ko

IPC分类号： H04B7/00 ,  H04W4/20

CPC分类号： H04W4/20

摘要： A Mobile Station (MS) is operable to select a precoding matrix in a multi-antenna wireless communication system. The method includes receiving, from a serving Base Station (BS), information on a precoding matrix of which use is prohibited and a precoding matrix to be used by a neighbor BS, estimating an interference signal for the precoding matrix to be used by the neighbor BS, and selecting a precoding matrix to be used by the serving BS by considering the estimated interference signal from the remaining precoding matrixes except for the precoding matrix of which use is prohibited among precoding matrixes used by the serving BS.

摘要翻译： 移动站（MS）可操作以在多天线无线通信系统中选择预编码矩阵。 该方法包括从服务基站（BS）接收关于禁止使用的预编码矩阵的信息和由邻居BS使用的预编码矩阵，估计由邻居使用的预编码矩阵的干扰信号 BS，并且通过考虑来自剩余的预编码矩阵的估计干扰信号，并且由服务BS使用的预编码矩阵，除了由服务BS使用的预编码矩阵之中禁止使用的预编码矩阵之外，选择预编码矩阵。

公开(公告)号：US08219164B2

公开(公告)日：2012-07-10

申请号：US12183023

申请日：2008-07-30

申请人： Myeon-Kyun Cho ,  In-Soo Hwang ,  Eun-Seok Ko ,  Young-Ho Jung

发明人： Myeon-Kyun Cho ,  In-Soo Hwang ,  Eun-Seok Ko ,  Young-Ho Jung

IPC分类号： H04B7/08 ,  H04B7/00 ,  H04M1/00

CPC分类号： H01Q1/242

摘要： An apparatus and method for supporting a multiple antenna service in a wireless communication system are provided. The apparatus includes at least one antenna, a form determining unit for determining a form of an MS, and an antenna constructing unit for constructing an antenna structure according to the form of the MS using the at least one antenna.

摘要翻译： 提供了一种在无线通信系统中支持多天线业务的装置和方法。 该装置包括至少一个天线，用于确定MS的形式的形式确定单元，以及天线构造单元，用于根据使用该至少一个天线的MS的形式构造天线结构。