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199 条记录 (耗时 0.036 秒)

    Method and apparatus for selecting antenna in a communication system
    1.
    发明授权
    Method and apparatus for selecting antenna in a communication system 有权
    在通信系统中选择天线的方法和装置

    公开(公告)号：US08364091B2

    公开(公告)日：2013-01-29

    申请号：US12098099

    申请日：2008-04-04

    申请人： Eun-Seok Ko ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  Dae-Sik Hong

    发明人： Eun-Seok Ko ,  Yung-Soo Kim ,  Myeon-Kyun Cho ,  Dae-Sik Hong

    IPC分类号： H04B1/00

    CPC分类号： H04B7/0691 ,  H04B7/0617 ,  H04L5/0023

    摘要： A method and apparatus for selecting an antenna in a communication system is provided. The apparatus includes a mobile station for determining a set of transmit antennas by considering statistical channel information, for determining a subset of the transmit antennas, which can increase a diversity gain and reduce an effect of a spatial correlation, from among the determined set of the transmit antennas by considering the statistical channel information and instantaneous channel information, for generating antenna selection information by using the determined subset of the transmit antennas, and for feeding back the generated antenna selection information to a base station.

    摘要翻译： 提供一种在通信系统中选择天线的方法和装置。 该装置包括：移动站，用于通过考虑统计信道信息来确定一组发射天线，用于确定发射天线的子集，其可以增加分集增益并降低空间相关性的影响，所确定的一组 通过考虑统计信道信息和瞬时信道信息来发射天线，用于通过使用所确定的发射天线的子集来产生天线选择信息，并且将生成的天线选择信息反馈给基站。

    Maximum likelihood detection apparatus and method in a wireless communication system
    4.
    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。

    Apparatus and method for beamforming in a multi-antenna system
    6.
    发明申请
    Apparatus and method for beamforming in a multi-antenna system 有权
    多天线系统中波束成形的装置和方法

    公开(公告)号：US20090195455A1

    公开(公告)日：2009-08-06

    申请号：US12322587

    申请日：2009-02-04

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

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

    IPC分类号： H01Q3/00

    CPC分类号： H04B7/0617 ,  H04B7/0626 ,  H04B7/086

    摘要： An apparatus and method for beamforming in a multi-antenna system are provided. The method includes assuming at least one codeword comprised in a codebook as a precoding weight of a reference receive end and generating post-processing weights of at least two receive ends, confirming a codeword maximizing a sum rate using the post-processing weights, generating preceding weights of the receive ends using the codeword maximizing the sum rate, and precoding a transmit signal using the generated precoding weights and transmitting the precoded transmit signal to each receive end.

    摘要翻译： 提供了一种用于多天线系统中的波束成形的装置和方法。 该方法包括将码本中包含的至少一个码字作为参考接收端的预编码权重，并且生成至少两个接收端的后处理权重，使用后处理权重确认码字最大化和速率，生成前 接收端的权重使用最大化和速率的码字，并且使用所生成的预编码权重对发送信号进行预编码，并将预编码的发送信号发送到每个接收端。

    Apparatus and method for generating per stream effective signal to noise ratio in a multiple-input multiple-output wireless communication system
    8.
    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。

    Apparatus and method for hybrid automatic repeat request (HARQ) in wireless communication system
    9.
    发明申请
    Apparatus and method for hybrid automatic repeat request (HARQ) in wireless communication system 有权
    无线通信系统中混合自动重传请求（HARQ）的装置和方法

    公开(公告)号：US20090097586A1

    公开(公告)日：2009-04-16

    申请号：US12287104

    申请日：2008-10-06

    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： H04B7/0417 ,  H04B7/063 ,  H04B7/0639 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0242

    摘要： A Multiple-Input Multiple-Output (MIMO) wireless communication system is provided. A receiving end includes a selector for selecting at least one stream for a MultiUser (MU) mode; a first generator for generating per stream channel quality information for the at least one selected stream as at least one candidate for channel information for the MU mode; and a determiner for determining one per stream channel quality information of the candidates as channel information for the MU mode.

    摘要翻译： 提供了多输入多输出（MIMO）无线通信系统。 接收端包括用于为多用户（MU）模式选择至少一个流的选择器; 第一发生器，用于生成用于所述至少一个所选流的每流信道质量信息，作为所述MU模式的信道信息的至少一个候选; 以及确定器，用于确定候选的一个每个流信道质量信息作为MU模式的信道信息。

    Apparatus and method for interference cancellation in multi-antenna system
    10.
    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。