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33 条记录 (耗时 0.026 秒)

    Interference cancellation in variable codelength systems for multi-access communication
    2.
    发明申请
    Interference cancellation in variable codelength systems for multi-access communication 有权
    用于多访问通信的可变码长系统中的干扰消除

    公开(公告)号：US20120027138A1

    公开(公告)日：2012-02-02

    申请号：US13253075

    申请日：2011-10-05

    申请人： Vijay Nagarajan ,  Louis L. Scharf ,  Anand P. Narayan

    发明人： Vijay Nagarajan ,  Louis L. Scharf ,  Anand P. Narayan

    IPC分类号： H04L25/08

    CPC分类号： H04B1/7107 ,  H04B1/712 ,  H04B2201/70703 ,  H04B2201/709727

    摘要： A receiver employs low-rate processing to synthesize the effect of high-rate interference in a received multi-rate signal. Each high-rate subchannel is analyzed on its low-rate descendents to produce symbol estimates for each low-rate symbol interval. The symbol estimates are applied to low-rate descendent subchannels, which are then combined to synthesize the effects of the high-rate interference. An interference canceller processes the synthesized interference with the received signal for producing an interference-cancelled signal. Alternatively, analogous steps may be applied at high-rate to analyze, synthesize, and cancel the effects of low-rate interference in a multi-rate signal.

    摘要翻译： 接收机采用低速率处理来合成接收的多速率信号中的高速率干扰的影响。 在其低速率后代分析每个高速率子信道，以对每个低速率符号间隔产生符号估计。 符号估计适用于低速率后代子信道，然后将其合并，以合成高速率干扰的影响。 干扰消除器处理与接收信号的合成干扰以产生干扰消除信号。 或者，可以以高速率应用类似的步骤来分析，合成和消除多速率信号中的低速率干扰的影响。

    Systems and methods for control of receivers
    3.
    发明申请
    Systems and methods for control of receivers 有权
    用于控制接收机的系统和方法

    公开(公告)号：US20120213252A1

    公开(公告)日：2012-08-23

    申请号：US13462238

    申请日：2012-05-02

    申请人： Brian Lee Roberts ,  Kenneth C. Grobaski ,  Anand P. Narayan

    发明人： Brian Lee Roberts ,  Kenneth C. Grobaski ,  Anand P. Narayan

    IPC分类号： H04B1/711

    CPC分类号： H04B1/7117

    摘要： A controller for advanced receivers configures a plurality of advanced receiver modules based on figures of merit computed on the input signal. The controller also selects the appropriate output signal based on figures of merit of either the input or the output signals. The controller decisions can also be made in a bursty manner, where only a subset of the decisions to be made are made at a given time, thereby limiting the processing load of the control processor.

    摘要翻译： 用于高级接收器的控制器基于在输入信号上计算的品质因数配置多个高级接收器模块。 控制器还根据输入或输出信号的品质因数选择合适的输出信号。 控制器决定还可以以突发方式进行，其中仅在给定时间做出要作出的决定的子集，从而限制控制处理器的处理负担。

    Methods for managing alignment and latency in interference suppression
    4.
    发明申请
    Methods for managing alignment and latency in interference suppression 有权
    用于管理干扰抑制中的对准和延迟的方法

    公开(公告)号：US20120195360A1

    公开(公告)日：2012-08-02

    申请号：US13314787

    申请日：2011-12-08

    申请人： Anand P. Narayan ,  Greg Graham ,  David R. Meyer ,  Prashant Jain

    发明人： Anand P. Narayan ,  Greg Graham ,  David R. Meyer ,  Prashant Jain

    IPC分类号： H04B15/00 ,  H04L27/01

    CPC分类号： H04B1/7097 ,  G01S5/0215 ,  G01S5/10 ,  G01S19/22 ,  H04B1/7093 ,  H04B1/7105 ,  H04B1/7117 ,  H04B2001/70935 ,  H04B2201/70701 ,  H04B2201/70715

    摘要： An interference cancelling receiver combines data from multiple paths after aligning to transmitter timing, and uses either an equalizer or a Rake receiver to compute symbol estimates. Interference estimates are generated from the symbol estimates, and multiple interference estimates are combined after re-aligning the interference estimates to receiver timing. At least two segments of symbol estimates are computed for each segment of interference cancelled data.Various techniques may be employed for controlling the latency and sequencing of these operations, and the subsystems within the canceller may use different processing clock speeds.

    摘要翻译： 干扰消除接收机在对准发射机定时之后组合来自多个路径的数据，并且使用均衡器或Rake接收机来计算符号估计。 从符号估计产生干扰估计，并且在将干扰估计重新对准接收机定时之后组合多个干扰估计。 对干扰消除数据的每个段计算符号估计的至少两个段。 可以采用各种技术来控制这些操作的等待时间和顺序，并且消除器内的子系统可以使用不同的处理时钟速度。

    System and method for adjusting phase
    7.
    发明授权
    System and method for adjusting phase 有权
    调整相位的系统和方法

    公开(公告)号：US07068706B2

    公开(公告)日：2006-06-27

    申请号：US10686359

    申请日：2003-10-15

    申请人： Anand P. Narayan ,  Prashant Jain ,  Eric S. Olson

    发明人： Anand P. Narayan ,  Prashant Jain ,  Eric S. Olson

    IPC分类号： H04B1/69

    CPC分类号： H04J13/0048 ,  H04L2027/0046

    摘要： Systems and methods for adjusting phase of a signal are provided. In one embodiment, the system includes a phase compensator configured for adjusting phase of the signal based on filtered and unfiltered representations of a first component of the signal and based on filtered and unfiltered representations of a second component of the signal. For example, the phase compensator may provide phase adjusted I and Q components of a complex signal through a plurality of multiplications of filtered and unfiltered I and Q components. The system also includes a detector that is communicatively coupled to the phase compensator. The detector is configured for combining the first and the second components with a code sequence to determine a complex amplitude of a channel.

    摘要翻译： 提供了一种调整信号相位的系统和方法。 在一个实施例中，系统包括相位补偿器，该相位补偿器被配置为基于信号的第一分量的滤波和未滤波表示并且基于信号的第二分量的滤波和未滤波表示来调整信号的相位。 例如，相位补偿器可以通过滤波和未滤波的I和Q分量的多次乘法来提供复信号的相位调整的I和Q分量。 该系统还包括通信地耦合到相位补偿器的检测器。 检测器被配置用于组合第一和第二分量与码序列以确定信道的复振幅。