Hybrid radio architecture for repeaters using RF cancellation reference
    1.
    发明授权
    Hybrid radio architecture for repeaters using RF cancellation reference 失效
    使用RF取消参考的中继器的混合无线电架构

    公开(公告)号:US08630211B2

    公开(公告)日:2014-01-14

    申请号:US12827669

    申请日:2010-06-30

    CPC分类号: H04B1/525 H04B7/15585

    摘要: A wireless repeater includes a receiver circuit implemented as an intermediate frequency (IF) subsampling receiver and a transmitter circuit implemented as a direct conversion (zero-IF) transmitter. The repeater further includes a reference receiver implemented as an IF subsampling receiver to sample a portion of the transmit signal prior to over-the-air transmission for use as the reference signal for channel estimation. Highly accurate channel estimation is obtained by using the reference signal from the reference receiver as the reference signal accounts for distortions in the transmitter circuit of the repeater. The repeater may include an echo canceller to cancel an estimated feedback amount from an input signal based on the channel estimation.

    摘要翻译: 无线中继器包括被实现为中频(IF)子采样接收机的接收机电路和被实现为直接转换(零中频))发射机的发射机电路。 中继器还包括实现为IF子采样接收机的参考接收机,用于在空中传输之前对发射信号的一部分进行采样,以用作信道估计的参考信号。 通过使用来自参考接收机的参考信号来获得高精度的信道估计,因为参考信号考虑了中继器的发射机电路中的失真。 中继器可以包括回声消除器,以基于信道估计从输入信号中消除估计的反馈量。

    Method in a wireless repeater employing an antenna array for interference reduction
    2.
    发明授权
    Method in a wireless repeater employing an antenna array for interference reduction 失效
    采用天线阵列进行干扰减少的无线中继器中的方法

    公开(公告)号:US08477665B2

    公开(公告)日:2013-07-02

    申请号:US12836493

    申请日:2010-07-14

    IPC分类号: H04B7/14

    CPC分类号: H04B7/15571

    摘要: A wireless repeater with an antenna array determines the antenna weights to modify the spatial selectivity of the antenna array to reduce interference and improve the quality of signal reception. The antenna weights are determined using an error minimizing algorithm to minimize the error between a desired receive signal and a reference signal or an adaptive metric optimization algorithm to calculate adaptively antenna weights to minimize the signal-to-noise ratio of a desired receive signal.

    摘要翻译: 具有天线阵列的无线中继器确定天线权重以修改天线阵列的空间选择性以减少干扰并提高信号接收的质量。 使用误差最小化算法来确定天线权重,以最小化期望的接收信号和参考信号之间的误差或自适应度量优化算法来自适应地计算天线权重以最小化期望的接收信号的信噪比。

    SELECTIVE CARRIER AMPLIFICATION IN A WIRELESS REPEATER
    6.
    发明申请
    SELECTIVE CARRIER AMPLIFICATION IN A WIRELESS REPEATER 有权
    无线重复机中的选择性载波放大

    公开(公告)号:US20120314647A1

    公开(公告)日:2012-12-13

    申请号:US13155276

    申请日:2011-06-07

    IPC分类号: H04W88/04

    CPC分类号: H04B7/15542

    摘要: A method in a wireless repeater selects one or more carriers out of all carriers for amplification and transmission. The non-selected carriers may be blocked to mitigate delay spread, uplink noise contribution or other effects on the repeater environment due to multiple repeaters. The carriers may be selected based on signal characteristics, signal usage, and/or other parameters.

    摘要翻译: 无线中继器中的方法从所有载波中选择一个或多个载波进行放大和发送。 由于多个中继器,可以阻止未选择的载波以减轻延迟扩展,上行链路噪声贡献或对中继器环境的其他影响。 可以基于信号特性,信号使用和/或其他参数来选择载波。