Signal processing method and device for long term evolution (LTE) base station side
    1.
    发明申请
    Signal processing method and device for long term evolution (LTE) base station side 审中-公开
    用于长期演进(LTE)基站侧的信号处理方法和装置

    公开(公告)号:US20130128853A1

    公开(公告)日:2013-05-23

    申请号:US13809392

    申请日:2011-06-03

    IPC分类号: H04W72/04

    摘要: The disclosure discloses a signal processing method for a Long Term Evolution (LTE) base station side, wherein the method includes the following steps: in a downlink signal direction, filtering downlink signals at a baseband side to remove high frequency sub-carrier components, and extracting signals from the filtered signals with an extracting frequency fsd, wherein fw≦fsd

    摘要翻译: 本公开公开了一种用于长期演进(LTE)基站侧的信号处理方法,其中该方法包括以下步骤:在下行链路信号方向上,对基带侧的下行链路信号进行滤波以去除高频子载波分量,以及 以提取频率fsd从滤波信号中提取信号,其中fw @ fsd <(128/75)* fw,fw是LTE的频谱带宽; 在上行链路信号方向上,首先对上行链路信号执行内插以增加信号频率,然后对信号进行滤波以增加高频子载波分量。 本公开的方法可以有效地降低基带射频接口的传输速率,而不增加射频侧的复杂度。 本公开还公开了一种用于LTE基站侧的对应的信号处理装置,该装置包括下行链路滤波器,提取器,内插器,上行链路滤波器,频域逆变换模块和频域变换模块,所有这些都是 被设置在基带侧。

    Capture buffer of digital predistortion systems
    2.
    发明授权
    Capture buffer of digital predistortion systems 有权
    数字预失真系统的捕获缓冲区

    公开(公告)号:US09287833B2

    公开(公告)日:2016-03-15

    申请号:US14348411

    申请日:2011-04-19

    摘要: An improved DPD system includes a predistortion module having at least one predistortion function. The predistortion module is configured to receive and subsequently process a baseband signal. The system also includes a power amplifier configured to receive the processed baseband signal from the predistortion module. The system further includes a model calculator configured to program priorities for predistortion functions so that the processed baseband signal transmitted from the predistortion module corresponds to the transmission power of the power amplifier. The model calculator is further configured to send a trigger signal to indicate when data capture from the power amplifier should begin so as to update the predistortion functions. A trigger module in the system is configured to receive the trigger signal and to initiate data capture from the power amplifier upon receipt of the trigger signal.

    摘要翻译: 改进的DPD系统包括具有至少一个预失真功能的预失真模块。 预失真模块被配置为接收并随后处理基带信号。 该系统还包括功率放大器,被配置为从预失真模块接收经处理的基带信号。 该系统还包括:模型计算器,被配置为对预失真函数编制优先级,使得从预失真模块发送的经处理的基带信号对应于功率放大器的发送功率。 模型计算器还被配置为发送触发信号以指示何时开始从功率放大器获取数据以便更新预失真功能。 系统中的触发模块被配置为接收触发信号并且在接收到触发信号时从功率放大器启动数据捕获。

    Method for pre-distorting and a pre-distorter
    3.
    发明授权
    Method for pre-distorting and a pre-distorter 有权
    预失真的方法和预失真

    公开(公告)号:US09184814B2

    公开(公告)日:2015-11-10

    申请号:US14008143

    申请日:2011-03-28

    摘要: The document discloses a pre-distorter, which comprises: a pre-distortion module, which is configured to pre-distort a plurality of baseband input signals by an equal number of pre-distortion functions to obtain an equal number of pre-distorted signals respectively, wherein all of the baseband input signals input into every pre-distortion function, and each pre-distortion function has one output; an adder, which is configured to combine all of the pre-distorted signals output from every pre-distortion function into one combined signal; and a power amplifier (PA), which is configured to amplify the combined signal, wherein the cascade of the pre-distortion functions and the PA are linear overall. And the document also discloses a method for distorting. The document reduces the implementation cost of a pre-distorter.

    摘要翻译: 该文献公开了一种预失真器,其包括:预失真模块,其被配置为通过相等数量的预失真函数来预失真多个基带输入信号,以分别获得相等数量的预失真信号 ,其中输入到每个预失真功能的每个预失真功能的所有基带输入信号都具有一个输出; 加法器,被配置为将从每个预失真函数输出的所有预失真信号组合成一个组合信号; 以及功率放大器(PA),其被配置为放大组合信号,其中预失真功能和PA的级联总体上是线性的。 该文件还公开了一种扭曲的方法。 该文件降低了预失真器的实施成本。

    METHOD AND APPARATUS FOR LINEARIZING A NON-LINEAR POWER AMPLIFIER
    4.
    发明申请
    METHOD AND APPARATUS FOR LINEARIZING A NON-LINEAR POWER AMPLIFIER 有权
    用于线性化非线性功率放大器的方法和装置

    公开(公告)号:US20120092067A1

    公开(公告)日:2012-04-19

    申请号:US13255717

    申请日:2009-03-09

    IPC分类号: H03F1/32

    CPC分类号: H03F1/3241 H03F1/3247

    摘要: An apparatus and method for linearizing a non-linear power amplifier. The method comprises: performing an iteration algorithm by using a desired output signal of the non-linear power amplifier, to calculate an input signal of the non-linear power amplifier, whereby with the calculated input signal of the non-linear power amplifier, the non-linear power amplifier is linearized. The apparatus and method can produce a signal on the output of the non-linear power amplifier with an arbitrarily high quality of performance.

    摘要翻译: 一种线性化非线性功率放大器的装置和方法。 该方法包括:通过使用非线性功率放大器的期望的输出信号来执行迭代算法来计算非线性功率放大器的输入信号,由此通过计算的非线性功率放大器的输入信号, 非线性功率放大器是线性化的。 该装置和方法可以以非常高的性能质量在非线性功率放大器的输出上产生信号。

    CAPTURE BUFFER OF DIGITAL PREDISTORTION SYSTEMS
    5.
    发明申请
    CAPTURE BUFFER OF DIGITAL PREDISTORTION SYSTEMS 有权
    数字预测系统的捕获缓冲

    公开(公告)号:US20140333377A1

    公开(公告)日:2014-11-13

    申请号:US14348411

    申请日:2011-04-19

    IPC分类号: H03F1/32

    摘要: An improved DPD system includes a predistortion module having at least one predistortion function. The predistortion module is configured to receive and subsequently process a baseband signal. The system also includes a power amplifier configured to receive the processed baseband signal from the predistortion module. The system further includes a model calculator configured to program priorities for predistortion functions so that the processed baseband signal transmitted from the predistortion module corresponds to the transmission power of the power amplifier. The model calculator is further configured to send a trigger signal to indicate when data capture from the power amplifier should begin so as to update the predistortion functions. A trigger module in the system is configured to receive the trigger signal and to initiate data capture from the power amplifier upon receipt of the trigger signal.

    摘要翻译: 改进的DPD系统包括具有至少一个预失真功能的预失真模块。 预失真模块被配置为接收并随后处理基带信号。 该系统还包括功率放大器,被配置为从预失真模块接收经处理的基带信号。 该系统还包括:模型计算器,被配置为对预失真函数编制优先级,使得从预失真模块发送的经处理的基带信号对应于功率放大器的发送功率。 模型计算器还被配置为发送触发信号以指示何时开始从功率放大器获取数据以便更新预失真功能。 系统中的触发模块被配置为接收触发信号并且在接收到触发信号时从功率放大器启动数据捕获。

    Method and apparatus for linearizing a non-linear power amplifier
    6.
    发明授权
    Method and apparatus for linearizing a non-linear power amplifier 有权
    用于线性化非线性功率放大器的方法和装置

    公开(公告)号:US08482349B2

    公开(公告)日:2013-07-09

    申请号:US13255717

    申请日:2009-03-09

    IPC分类号: H03F1/26

    CPC分类号: H03F1/3241 H03F1/3247

    摘要: An apparatus and method for linearizing a non-linear power amplifier. The method comprises: performing an iteration algorithm by using a desired output signal of the non-linear power amplifier, to calculate an input signal of the non-linear power amplifier, whereby with the calculated input signal of the non-linear power amplifier, the non-linear power amplifier is linearized. The apparatus and method can produce a signal on the output of the non-linear power amplifier with an arbitrarily high quality of performance.

    摘要翻译: 一种线性化非线性功率放大器的装置和方法。 该方法包括:通过使用非线性功率放大器的期望的输出信号来执行迭代算法来计算非线性功率放大器的输入信号,由此通过计算的非线性功率放大器的输入信号, 非线性功率放大器是线性化的。 该装置和方法可以以非常高的性能质量在非线性功率放大器的输出上产生信号。

    METHOD FOR PRE-DISTORTING AND A PRE-DISTORTER
    7.
    发明申请
    METHOD FOR PRE-DISTORTING AND A PRE-DISTORTER 有权
    预失真的方法和预反射器

    公开(公告)号:US20140016725A1

    公开(公告)日:2014-01-16

    申请号:US14008143

    申请日:2011-03-28

    IPC分类号: H04B7/04

    摘要: The present invention discloses a pre-distorter, which comprises: a pre-distortion module, which is configured to pre-distort a plurality of baseband input signals by an equal number of pre-distortion functions to obtain equal number of pre-distorted signals respectively, wherein all of the baseband input signals input into every pre-distortion function, and each pre-distortion function has one output; an adder, which is configured to combine all of the pre-distorted signals output from every pre-distortion functions into one combined signal; and a power amplifier (PA), which is configure to amplify the combined signal, wherein the cascade of the pre-distortion functions and the PA are linear overall. And the present invention also discloses a method for distorting. The present invention reduces the implementation cost of a pre-distorer.

    摘要翻译: 本发明公开了一种预失真器,其包括:预失真模块,其被配置为通过相等数量的预失真函数来预失真多个基带输入信号,以分别获得相等数量的预失真信号 ,其中输入到每个预失真功能的每个预失真功能的所有基带输入信号都具有一个输出; 一个加法器,被配置为将从每个预失真函数输出的所有预失真信号组合成一个组合信号; 以及配置为放大组合信号的功率放大器(PA),其中预失真功能和PA的级联总体上是线性的。 本发明还公开了一种变形方法。 本发明降低了预先排除者的实施成本。