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    METHOD AND APPARATUS FOR INTER-CARRIER INTERFERENCE MITIGATION IN PHASE NOISE LIMITED WIRELSS COMMUNICTION SYSTEMS
    1.
    发明申请
    METHOD AND APPARATUS FOR INTER-CARRIER INTERFERENCE MITIGATION IN PHASE NOISE LIMITED WIRELSS COMMUNICTION SYSTEMS 有权
    相位噪声有限公司网络通信系统中运营商干扰减轻的方法与装置

    公开(公告)号：US20150155961A1

    公开(公告)日：2015-06-04

    申请号：US13994576

    申请日：2012-09-26

    申请人： Alexey Khoryaev ,  Artyom Lomayev ,  Alexander Maltsev ,  Vladimir Kravtsov ,  Michael Genossar

    发明人： Alexey Khoryaev ,  Artyom Lomayev ,  Alexander Maltsev ,  Vladimir Kravtsov ,  Michael Genossar

    IPC分类号： H04J11/00 ,  H04L1/00 ,  H04L27/26

    CPC分类号： H04J11/0023 ,  H04L1/0057 ,  H04L1/0071 ,  H04L27/2602 ,  H04L27/2634

    摘要： In a wireless, OFDM system, phase noise may be mitigated through the use of an interleaver that is designed to distribute coded block bits across subcarriers of multiple OFDM symbols. Doing so decreases the non-stationary properties of the noise. Such an interleaver may be a rectangular interleaver that maps each block to a different subcarrier to create frequency diversity and to a different OFDM symbol, to create time diversity. One exemplary method of interleaving the symbols is to place a first symbol at row X and column Y of the interleaver. The next symbol is placed in row X+1 and column Y+1. The result of such an interleaving process is a great reduction in the block error rate.

    摘要翻译： 在无线OFDM系统中，可以通过使用被设计为在多个OFDM符号的子载波上分配编码块比特的交织器来减轻相位噪声。 这样做会降低噪声的非平稳特性。 这样的交织器可以是矩形交织器，其将每个块映射到不同的子载波以产生频率分集和不同的OFDM符号，以产生时间分集。 交织符号的一个示例性方法是在交织器的行X和列Y处放置第一符号。 下一个符号放在行X + 1和列Y + 1。 这种交错处理的结果是块错误率的大大降低。

    INTER-CARRIER INTERFERENCE PHASE NOISE COMPENSATION BASED ON PHASE NOISE SPECTRUM APPROXIMATION
    2.
    发明申请
    INTER-CARRIER INTERFERENCE PHASE NOISE COMPENSATION BASED ON PHASE NOISE SPECTRUM APPROXIMATION 审中-公开
    基于相位噪声谱逼近的互操作干扰相位噪声补偿

    公开(公告)号：US20140270015A1

    公开(公告)日：2014-09-18

    申请号：US13996793

    申请日：2012-06-28

    申请人： Vladimir Kravtsov ,  Michael Genossar ,  Alexey Khoryaev ,  Artyom Lomayev

    发明人： Vladimir Kravtsov ,  Michael Genossar ,  Alexey Khoryaev ,  Artyom Lomayev

    IPC分类号： H04B1/12 ,  H04L27/148

    CPC分类号： H04B1/12 ,  H04L25/03821 ,  H04L27/148 ,  H04L27/2647 ,  H04L2025/03414

    摘要： An approach is provided to compensate for inter-carrier interference caused by phase noise in a transmitted or received signal. The approach involves causing an estimation of one or more phase noise spectrum taps that cause inter-carrier interference in a received signal. The approach also involves causing an approximation of an instantaneous phase noise spectrum by a low order finite impulse response filter based on the estimated one or more phase noise spectrum taps. The approach additionally involves determining a de-convolution filter having two or more filter coefficients for one or more orthogonal frequency-division multiplexing symbols associated with the received signal. The approach further involves causing the de-convolution filter to be matched to the approximated instantaneous phase noise spectrum. The approach also involves causing the inter-carrier interference caused by phase noise to be compensated for based on a de-convolution procedure that applies the de-convolution filter to the one or more orthogonal frequency-division multiplexing symbols.

    摘要翻译： 提供了一种方法来补偿由发送或接收信号中的相位噪声引起的载波间干扰。 该方法包括对在接收信号中引起载波间干扰的一个或多个相位噪声频谱抽头进行估计。 该方法还涉及通过基于估计的一个或多个相位噪声频谱抽头的低阶有限脉冲响应滤波器来引起瞬时相位噪声谱的近似。 该方法还涉及确定具有用于与接收信号相关联的一个或多个正交频分复用符号的两个或多个滤波器系数的去卷积滤波器。 该方法还涉及使解卷积滤波器与近似的瞬时相位噪声谱匹配。 该方法还包括基于将去卷积滤波器应用于一个或多个正交频分复用符号的去卷积过程来导致由相位噪声引起的载波间干扰来补偿。