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    Frequency domain decision feedback equalizer
    2.
    发明授权
    Frequency domain decision feedback equalizer 失效
    频域决策反馈均衡器

    公开(公告)号：US07418035B1

    公开(公告)日：2008-08-26

    申请号：US11788058

    申请日：2007-04-16

    申请人： Martin Vivian Clark

    发明人： Martin Vivian Clark

    IPC分类号： H03H7/30 ,  H03K5/159 ,  H04B1/10

    CPC分类号： H04L25/03159 ,  H04L25/022 ,  H04L25/03057

    摘要： The feedback structure of a frequency domain decision feedback equalizer is implemented in the frequency domain, rather than in the time domain. Advantageously, this permits the synthesis of long feedback filters with a much smaller increase in receiver complexity than is the case when the feedback structure is illustratively implemented in the time domain. Adaptation of the characteristics of the feedback structure of the frequency domain equalizer (as well as its feedforward structure) is carried out based on tentative symbol decisions that are fed back on a block basis. Although possibly rendering the receiver more susceptible to channel estimation errors, this approach renders the receiver capable not only of the post-cursor intersymbol interference cancellation afforded by a standard DFE, but pre-cursor intersymbol interference cancellation, as well, helping to offset any impact of increased channel estimation errors.

    摘要翻译： 频域判决反馈均衡器的反馈结构在频域中实现，而不是在时域中实现。 有利的是，与反馈结构在时域中被说明性地实现的情况相比，这允许以更小的接收机复杂度的增加来合成长反馈滤波器。 基于以块为单位反馈的暂定符号决定，对频域均衡器的反馈结构的特性（以及其前馈结构）进行适应。 尽管可能使接收机更容易受到信道估计误差的影响，但该方法使得接收机不仅能够实现由标准DFE提供的后置符号间符号间干扰消除，而且可以进行前缀符号间干扰消除，并有助于抵消任何影响 增加的信道估计误差。

    Frequency domain decision feedback equalizer
    3.
    发明授权
    Frequency domain decision feedback equalizer 失效
    频域决策反馈均衡器

    公开(公告)号：US07212569B1

    公开(公告)日：2007-05-01

    申请号：US10411684

    申请日：2003-04-11

    申请人： Martin Vivian Clark

    发明人： Martin Vivian Clark

    IPC分类号： H03H7/30 ,  H03K5/159 ,  H04B1/10

    CPC分类号： H04L25/03159 ,  H04L25/022 ,  H04L25/03057

    摘要： The feedback structure of a frequency domain decision feedback equalizer is implemented in the frequency domain, rather than in the time domain. Advantageously, this permits the synthesis of long feedback filters with a much smaller increase in receiver complexity than is the case when the feedback structure is illustratively implemented in the time domain. Adaptation of the characteristics of the feedback structure of the frequency domain equalizer (as well as its feedforward structure) is carried out based on tentative symbol decisions that are fed back on a block basis. Although possibly rendering the receiver more susceptible to channel estimation errors, this approach renders the receiver capable not only of the post-cursor intersymbol interference cancellation afforded by a standard DFE, but pre-cursor intersymbol interference cancellation, as well, helping to offset any impact of increased channel estimation errors.

    摘要翻译： 频域判决反馈均衡器的反馈结构在频域中实现，而不是在时域中实现。 有利的是，与反馈结构在时域中被说明性地实现的情况相比，这允许以更小的接收机复杂度的增加来合成长反馈滤波器。 基于以块为单位反馈的暂定符号决定，对频域均衡器的反馈结构的特性（以及其前馈结构）进行适应。 尽管可能使接收机更容易受到信道估计误差的影响，但该方法使得接收机不仅能够实现由标准DFE提供的后置符号间符号间干扰消除，而且可以进行前缀符号间干扰消除，并有助于抵消任何影响 增加的信道估计误差。

    Method and apparatus for reducing interference in multiple-input-multiple-output (MIMO) systems
    5.
    发明授权
    Method and apparatus for reducing interference in multiple-input-multiple-output (MIMO) systems 有权
    用于减少多输入多输出（MIMO）系统中的干扰的方法和装置

    公开(公告)号：US07912014B2

    公开(公告)日：2011-03-22

    申请号：US10255441

    申请日：2002-09-26

    申请人： Andreas Molisch ,  Martin Vivian Clark ,  Huaiyu Dai ,  Moe Z. Win ,  Jack Harriman Winters

    发明人： Andreas Molisch ,  Martin Vivian Clark ,  Huaiyu Dai ,  Moe Z. Win ,  Jack Harriman Winters

    IPC分类号： H04W4/00

    CPC分类号： H04L25/067 ,  H04B7/04 ,  H04L1/06 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/0224

    摘要： Interference is reduced with a multiple-input-multiple-output (MIMO) system having a set of basestations including a first basestation and a second basestation is reduced. Signals associated with the first basestation having its own antenna elements are received. The first basestation is associated with its own mobile stations each having their own antenna elements. Each signal associated with the first basestation is uniquely associated with a mobile station associated with the first basestation. Signals associated with the second basestation having its own antenna elements are received. The second basestation is associated with its own mobile stations each having their own antenna elements. Each signal associated with the second basestation is uniquely associated with a mobile station associated with the second basestation. Signals associated with the first basestation are jointly detected in conjunction with the signals associated with the second basestation to produce a set of detected signals.

    摘要翻译： 通过具有一组基站的多输入多输出（MIMO）系统来减少干扰，所述基站包括第一基站，并且减少了第二基站。 接收与具有其自己的天线元件的第一基站相关联的信号。 第一个基站与其自己的移动站相关联，每个移动站具有它们自己的天线元素。 与第一基站相关联的每个信号与与第一基站相关联的移动站唯一地相关联。 接收与具有其自己的天线元件的第二基站相关联的信号。 第二个基站与其各自具有自己的天线元件的其自己的移动台相关联。 与第二基站相关联的每个信号与与第二基站相关联的移动站唯一地相关联。 与第一基站相关联的信号与与第二基站相关联的信号一起共同检测以产生一组检测到的信号。