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    Maximum likelihood detection apparatus and method in a wireless communication system
    1.
    发明授权
    Maximum likelihood detection apparatus and method in a wireless communication system 有权
    无线通信系统中的最大似然检测装置和方法

    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。

    MAXIMUM LIKELIHOOD DETECTION APPARATUS AND METHOD IN A WIRELESS COMMUNICATION SYSTEM
    2.
    发明申请
    MAXIMUM LIKELIHOOD DETECTION APPARATUS AND METHOD IN A WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中的最大似然检测装置和方法

    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。

    Apparatus and method for interference cancellation in multi-antenna system
    6.
    发明授权
    Apparatus and method for interference cancellation in multi-antenna system 有权
    多天线系统干扰消除装置及方法

    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。

    APPARATUS AND METHOD FOR INTERFERENCE CANCELLATION IN MULTI-ANTENNA SYSTEM
    7.
    发明申请
    APPARATUS AND METHOD FOR INTERFERENCE CANCELLATION IN MULTI-ANTENNA SYSTEM 有权
    多天线系统干扰消除的装置和方法

    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。

    Apparatus and method for generating per stream effective signal to noise ratio in a multiple-input multiple-output wireless communication system
    10.
    发明授权
    Apparatus and method for generating per stream effective signal to noise ratio in a multiple-input multiple-output wireless communication system 有权
    用于在多输入多输出无线通信系统中产生每流有效信噪比的装置和方法

    公开(公告)号：US08189706B2

    公开(公告)日：2012-05-29

    申请号：US12186160

    申请日：2008-08-05

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

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

    IPC分类号： H04B7/02

    CPC分类号： H04L25/0204 ,  H04L1/0003 ,  H04L25/0224 ,  H04L25/0242 ,  H04L27/0008

    摘要： In the present invention, an apparatus and a method for generating feedback information for a Maximum Likelihood (ML) detection scheme in a Multiple-Input Multiple-Output (MIMO) wireless communication system are provided. An apparatus of the invention includes a generator for generating constellation difference points by converting a constellation domain representing values of symbols into a constellation difference domain representing values of distance between symbols, a calculator for calculating per stream Symbol Error Rates (SERs) using the constellation difference points, and a determiner for determining per stream Effective Signal to Noise Ratios (ESNRs) using the per stream SER.

    摘要翻译： 在本发明中，提供了一种用于在多输入多输出（MIMO）无线通信系统中产生用于最大似然（ML）检测方案的反馈信息的装置和方法。 本发明的装置包括一个发生器，用于通过将表示符号值的星座域转换为表示符号之间的距离值的星座差异域来产生星座差分点，用于计算每个流的符号误差率（SER），使用星座差 点和确定每个流的有效信噪比（ESNR）使用每流SER。