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18 条记录 (耗时 0.042 秒)

    Traffic interference cancellation
    3.
    发明授权
    Traffic interference cancellation 有权
    交通干扰消除

    公开(公告)号：US08442441B2

    公开(公告)日：2013-05-14

    申请号：US11192769

    申请日：2005-07-29

    申请人： Henry David Pfister ,  Jilei Hou ,  John Edward Smee ,  Stefano Tomasin

    发明人： Henry David Pfister ,  Jilei Hou ,  John Edward Smee ,  Stefano Tomasin

    IPC分类号： H04B1/00 ,  H04B15/00

    CPC分类号： H04B1/7103

    摘要： A method and system for interference cancellation (IC). One aspect relates to traffic interference cancellation. Another aspect relates to joint IC for pilot, overhead and data. Another aspect relates to improved channel estimation. Another aspect relates to adaptation of transmit subchannel gains.

    摘要翻译： 一种用于干扰消除（IC）的方法和系统。 一方面涉及交通干扰消除。 另一方面涉及用于飞行员，间接费用和数据的联合IC。 另一方面涉及改进的信道估计。 另一方面涉及发射子信道增益的适应。

    Signal processing method
    9.
    发明授权
    Signal processing method 有权
    信号处理方法

    公开(公告)号：US09036742B2

    公开(公告)日：2015-05-19

    申请号：US14005415

    申请日：2012-03-15

    申请人： Matteo Butussi ,  Stefano Tomasin

    发明人： Matteo Butussi ,  Stefano Tomasin

    IPC分类号： H03D1/00 ,  H04L27/26 ,  H04L27/34

    CPC分类号： H04L27/2649 ,  H04L27/2604 ,  H04L27/3405

    摘要： A demapping scheme, having a low computational cost, suitable for any transmission in which only exhaustive demapping can guarantee good performance. The scheme, proposed in this document, can be used in any transmission based on no differential modulation. For example the proposed scheme can be directly applied to a transmission on flat fading AWGN channels or to a transmission on frequency selective channels after equalization or on each sub-carrier of an OFDM System. The proposed solution can be applied for the demapping of any communication system. The proposed scheme can be used for rotated and un-rotated constellation.

    摘要翻译： 具有低计算成本的解映射方案，适用于只能进行彻底解映射可以保证良好性能的任何传输。 本文中提出的方案可用于基于无差分调制的任何传输。 例如，所提出的方案可以直接应用于平坦衰落AWGN信道上的传输或在均衡之后或在OFDM系统的每个子载波上的频率选择信道上的传输。 所提出的解决方案可以应用于任何通信系统的解映射。 所提出的方案可用于旋转和未旋转星座。

    Fliterbank modulation system with pre-equalization
    10.
    发明申请
    Fliterbank modulation system with pre-equalization 审中-公开

    公开(公告)号：US20050259755A1

    公开(公告)日：2005-11-24

    申请号：US10526869

    申请日：2003-08-04

    申请人： Stefano Tomasin ,  Nevio Benvenuto

    发明人： Stefano Tomasin ,  Nevio Benvenuto

    IPC分类号： H04J1/05 ,  H04L25/03 ,  H04L25/497 ,  H04L27/26 ,  H04B14/04

    CPC分类号： H04L25/4975 ,  H04L25/03159 ,  H04L25/03343 ,  H04L25/497 ,  H04L27/2634 ,  H04L27/264 ,  H04L27/265 ,  H04L2025/03414

    摘要： Filterbank-based modulation systems comprise sender-processors (20,30) with inverse-fast-fourier-transformating-modules (23,33) and filtering-modules (24,34) and comprise receiver-processors (40) with fast-fourier-transformating-modules (43). Interference caused by said filtering-modules (24,34) is reduced by, in said sender-processors (20,30), introducing coding-modules (22,32) with further-filtering-modules (26,36) in feedback loops, and by, in said receiver-processors (40), introducing decoding-modules (44). Splitting-modules (21,31,41) and combining-modules (25,35,45) allow the use of signal streams and parallel filterbanks. Coding-modules (22 resp. 32) comprise sub-coding-modules (22-1,22-2, . . . , 22-a or 32-1,32-2, . . . ,32-b), filtering-modules (24 resp. 34) comprise sub-filtering-modules (24-1,24-2, . . . ,24-a or 34-1,34-2, . . . ,34-b), further-filtering-modules (26 resp. 36) comprise sub-further-filtering-modules (26-1,26-2, . . . ,26-a or 36-1,36-2, . . . ,36-b), and decoding-modules (44) comprise sub-decoding-modules (44-1,44-2, . . . ,44-c), all per signal stream. The sub-further-filtering-modules either receive input signals from outputs of said inverse-fast-fourier-transformating-modules and supply output signals via fast-fourier-transformating-modules to inputs of said sub-coding-modules via adding/subtracting-modules for reducing interference per signal stream (or per subcarrier/subband), or receive input signals from outputs of said sub-coding-modules and supply output signal to inputs of said sub-coding-modules via adding/subtracting-modules for reducing interference per signal stream (or per subcarrier/subband) as well as between signal streams (or between subcarriers/subbands) and introducing so-called fractionally spaced filterbank-based modulation systems.