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    System and Method for Frequency Reuse for Wireless Point-To-Point Backhaul
    3.
    发明申请
    System and Method for Frequency Reuse for Wireless Point-To-Point Backhaul 审中-公开
    无线点对点回程的频率重用系统及方法

    公开(公告)号：US20170033819A1

    公开(公告)日：2017-02-02

    申请号：US15253090

    申请日：2016-08-31

    申请人： Maxlinear Asia Singapore PTE LTD

    发明人： Ronen Shaked ,  Ilan Reingold ,  Eitan Tsur ,  Eran Ridel

    IPC分类号： H04B1/12 ,  H04L1/00 ,  H04B7/08

    CPC分类号： H04B1/126 ,  H04B7/0854 ,  H04L1/0054

    摘要： A system and method for frequency reuse for wireless point-to-point backhaul. Frequency reuse is enabled through the cancellation of interfering signals generated by interference sources. In one embodiment, a conventional dish antenna is complemented with one or more additional auxiliary antennas (e.g., isotropic). The one or more additional auxiliary antennas enable cancellation of interfering signals whose direction of arrival (DOA) is off the dish antenna's bore-sight.

    摘要翻译： 一种用于无线点对点回程的频率复用的系统和方法。 通过消除由干扰源产生的干扰信号来启用频率重用。 在一个实施例中，传统的碟形天线与一个或多个附加辅助天线（例如，各向同性）互补。 一个或多个附加的辅助天线使得能够消除其到达方向（DOA）离开盘状天线的视野的干扰信号。

    Predistortion for hybrid digital/analog precoders
    5.
    发明授权
    Predistortion for hybrid digital/analog precoders 有权

    公开(公告)号：US10404334B2

    公开(公告)日：2019-09-03

    申请号：US16146363

    申请日：2018-09-28

    申请人： Maxlinear Asia Singapore PTE LTD

    发明人： Ronen Shaked

    IPC分类号： H04B7/0417 ,  H04B7/06 ,  H04L25/03 ,  H04B7/0456

    摘要： A 5G base station transmitter at least partially precodes data for beam forming, and generates digital precoded baseband signals. Cross product circuitry coupled to the digital precoder, generates digital cross products of the digital precoded baseband signals. Both the baseband signals and the cross products are put through digital-to-analog converters (DACs), then provided to an analog non-linear precoder. The analog non-linear precoder combines the analog baseband signals, the cross products, with pre-distortion and precoder coefficients to generate a signal that is pre-compensated for power amplifier non-linearity. The pre-compensated signal is amplified by the power amplifier and transmitted via a phased antenna array. The number of extra DACs required for inserting pre-distortion when a hybrid digital/analog precoder is used can be limited to approximately N RF ⁡ ( N RF - 1 ) 2 , where NRF is the number of outputs of the digital precoder. This is significantly fewer than the number of extra DACs used by other methods.

    Predistortion For Hybrid Digital/Analog Precoders
    6.
    发明申请
    Predistortion For Hybrid Digital/Analog Precoders 审中-公开

    公开(公告)号：US20190044585A1

    公开(公告)日：2019-02-07

    申请号：US16146363

    申请日：2018-09-28

    申请人： Maxlinear Asia Singapore PTE LTD

    发明人： Ronen Shaked

    IPC分类号： H04B7/0417 ,  H04L25/03 ,  H04B7/06

    CPC分类号： H04B7/0417 ,  H04B7/0456 ,  H04B7/0617 ,  H04L25/03891 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144

    摘要： A 5G base station transmitter at least partially precodes data for beam forming, and generates digital precoded baseband signals. Cross product circuitry coupled to the digital precoder, generates digital cross products of the digital precoded baseband signals. Both the baseband signals and the cross products are put through digital-to-analog converters (DACs), then provided to an analog non-linear precoder. The analog non-linear precoder combines the analog baseband signals, the cross products, with pre-distortion and precoder coefficients to generate a signal that is pre-compensated for power amplifier non-linearity. The pre-compensated signal is amplified by the power amplifier and transmitted via a phased antenna array. The number of extra DACs required for inserting pre-distortion when a hybrid digital/analog precoder is used can be limited to approximately N RF  ( N RF - 1 ) 2 , where NRF is the number of outputs of the digital precoder. This is significantly fewer than the number of extra DACs used by other methods.