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1. 发明申请

WO2008091556A1 ADAPTIVE ECHO CANCELLATION FOR AN ON-FREQUENCY RF REPEATER USING A WEIGHTED POWER SPECTRUM 审中-公开
标题翻译：使用称重功率谱的自适应射频放大器的自适应信号解除
公开(公告)号：WO2008091556A1
公开(公告)日：2008-07-31
申请号：PCT/US2008/000738
申请日：2008-01-22
申请人： POWERWAVE TECHNOLOGIES, INC. , BRAITHWAITE, Richard, Neil , CARICHNER, Scott
发明人： BRAITHWAITE, Richard, Neil , CARICHNER, Scott
IPC分类号： H04B3/20
CPC分类号： H04B7/15564 , H04B7/2606
摘要： A wireless repeater (10) includes an input antenna (12) for receiving an input signal, an output antenna (13) for outputting an amplified signal, and an amplifier (29) for amplifying the received input signal and providing the output amplified signal to the output antenna (13). Radiated coupling between the input and output antennas causes echoes to be transmitted by the repeater. A filter (210) is used for applying a weighting function to a power spectrum of a measured signal in the wireless repeater thereby obtaining a weighted power spectrum of the measured signal. An internal feedback path (150) is employed for adaptively canceling the echo by implementing an adaptive algorithm based on a autocorrelation of the input signal employing the weighted power spectrum of the measured signal.
摘要翻译：无线中继器（10）包括用于接收输入信号的输入天线（12），用于输出放大信号的输出天线（13）和用于放大所接收的输入信号并将输出放大信号提供给输出天线（13）。输入和输出天线之间的辐射耦合使得回波由中继器传输。滤波器（210）用于对无线中继器中的测量信号的功率谱应用加权函数，从而获得测量信号的加权功率谱。采用内部反馈路径（150）来自适应地消除回波，通过使用所测量信号的加权功率谱，基于输入信号的自相关来实现自适应算法。

2. 发明申请

WO2005069897A2 WIDEBAND ENHANCED DIGITAL INJECTION PREDISTORTION SYSTEM AND METHOD 审中-公开
标题翻译：宽带增强数字注入预测系统和方法
公开(公告)号：WO2005069897A2
公开(公告)日：2005-08-04
申请号：PCT/US2005001449
申请日：2005-01-18
申请人： POWERWAVE TECHNOLOGIES INC , COVA ARMANDO , CARICHNER SCOTT
发明人： COVA ARMANDO , CARICHNER SCOTT
IPC分类号： H03F1/32 , H04K1/02
CPC分类号： H03F1/3252 , H03F1/3247 , H03F1/3294 , H03F2200/102 , H03F2200/336
摘要： A system for digitally linearizing the nonlinear behaviour of RF high efficiency amplifiers employing baseband predistortion techniques is disclosed. The system provides additive or multiplicative predistortion of the digital quadrature (I/Q) input signal in order to minimize distortion at the output of the amplifier. The predistorter (108) uses a discrete-time polynomial kernel to model the inverse transfer characteristic of the amplifier (100), providing separate and simultaneous compensation for nonlinear static distortion, linear dynamic distortion and nonlinear dynamic effects including reactive electrical memory effects. Compensation for thermal memory effects also is embedded in the nonlinear dynamic compensation operation of the predistorter (108) and is implemented parametrically using an autoregressive dynamics tracking mechanism. A predistortion controller (420) periodically monitors the output of the amplifier (100) and compares it to the quadrature input signal to compute estimates of the residual output distortion of the amplifier (100). Output distortion estimates are used to adaptively compute the values of the parameters of the predistorter (108) in response to changes in the amplifiers operating conditions (temperature drifts, changes in modulation input bandwidth, variations in drive level, aging, etc). The predistortion parameter values computed by the predistortion controller are stored in non-volatile memory and used in polynomial digital predistorter (108). The digital predistortion system of the invention may provide broadband linearization of highly nonlinear and highly efficient RF amplification circuits including, but not limited to, dynamic load modulation amplifiers.
摘要翻译：公开了一种使用基带预失真技术对RF高效放大器的非线性行为进行数字线性化的系统。该系统提供数字正交（I / Q）输入信号的加法或乘法预失真，以便最小化放大器输出端的失真。预失真器（108）使用离散时间多项式内核对放大器（100）的反向传递特性进行建模，为非线性静态失真，线性动态失真和包括无功电存储器效应的非线性动态效应提供单独和同时的补偿。热存储器效应的补偿也嵌入在预失真器（108）的非线性动态补偿操作中，并且使用自回归动力学跟踪机制进行参数化实现。预失真控制器（420）周期性地监视放大器（100）的输出并将其与正交输入信号进行比较，以计算放大器（100）的剩余输出失真的估计。输出失真估计用于响应于放大器操作条件（温度漂移，调制输入带宽的变化，驱动电平的变化，老化等）的变化自适应地计算预失真器（108）的参数的值。由预失真控制器计算的预失真参数值存储在非易失性存储器中，并用于多项式数字预失真器（108）。本发明的数字预失真系统可以提供高度非线性和高效的RF放大电路的宽带线性化，包括但不限于动态负载调制放大器。

3. 发明申请

WO2008088762A1 IMPROVED DIGITAL RADIO HEAD SYSTEM AND METHOD 审中-公开
标题翻译：改进的数字无线电头系统和方法
公开(公告)号：WO2008088762A1
公开(公告)日：2008-07-24
申请号：PCT/US2008/000431
申请日：2008-01-11
申请人： POWERWAVE TECHNOLOGIES, INC. , CARICHNER, Scott , DEMARCO, Anthony
发明人： CARICHNER, Scott , DEMARCO, Anthony
IPC分类号： H04L12/16
CPC分类号： H04W56/0015 , H04W88/085
摘要： An improved digital radio head system and method for wireless communications is disclosed that simplifies the timing and synchronization between the access network (105), base station (280), and radio head (260). A satellite derived timing source is obtained at one or more of the remote radio heads (260) where it is convenient to obtain and use the timing reference. The reference is transmitted back to the base station (280), if necessary, to synchronize the two. This is further synchronized at a lower accuracy through the access network.
摘要翻译：公开了一种用于无线通信的改进的数字无线电头系统和方法，其简化了接入网络（105），基站（280）和无线电头（260）之间的定时和同步。在远程无线电头（260）中的一个或多个获得卫星导出的定时源，其中便于获得并使用定时参考。如果需要，将参考传送回基站（280）以使两者同步。这通过接入网进一步以较低的精度进行同步。

4. 发明申请

WO2008076248A1 TIME DIVISION DUPLEX FORWARD-TO-REVERSE TRANSITION SIGNAL GENERATOR 审中-公开
标题翻译：时分双工前向逆向信号发生器
公开(公告)号：WO2008076248A1
公开(公告)日：2008-06-26
申请号：PCT/US2007/025270
申请日：2007-12-11
申请人： POWERWAVE TECHNOLOGIES, INC. , HUNTON, Matthew, J. , CARICHNER, Scott
发明人： HUNTON, Matthew, J. , CARICHNER, Scott
IPC分类号： H04B7/14
CPC分类号： H04B1/48 , H04B1/18
摘要： A transition signal generator (215) is used to for controlling a booster (130) of a time division duplex signal in a communications system. The transition signal generator (215) includes a signal sampler (305) for sampling the time division duplex signal, a power detector (310) for detecting a power of the sampled signal, and a timing control unit (315) for generating a logic signal indicating a direction of the sampled signal from the detected power of the sampled signal.
摘要翻译：转换信号发生器（215）用于控制通信系统中时分双工信号的升压器（130）。转换信号发生器（215）包括用于采样时分双工信号的信号采样器（305），用于检测采样信号的功率的功率检测器（310），以及用于产生逻辑信号的定时控制单元从采样信号的检测功率指示采样信号的方向。

5. 发明申请

WO2007035358A3 AMPLIFIER SYSTEM EMPLOYING ANALOG POLYNOMIAL PREDISTORTION WITH SUB-NYQUIST DIGITAL ADAPTATION 审中-公开
标题翻译：使用模拟多项式预条件与次级数字适应的放大器系统
公开(公告)号：WO2007035358A3
公开(公告)日：2007-07-12
申请号：PCT/US2006035663
申请日：2006-09-14
申请人： POWERWAVE TECHNOLOGIES INC , CARICHNER SCOTT , BRAITHWAITE RICHARD NEIL , MASLENNIKOV NIKOLAI , HUNTON MATTHEW J
发明人： CARICHNER SCOTT , BRAITHWAITE RICHARD NEIL , MASLENNIKOV NIKOLAI , HUNTON MATTHEW J
IPC分类号： H04L25/49
CPC分类号： H03F1/3294 , H03F1/3241 , H03F1/3247 , H03F1/3258 , H03F2200/102 , H03F2200/216 , H04L27/364 , H04L27/368
摘要： A predistortion linearized amplifier system that uses analog polynomial based predistortion is disclosed. An analog polynomial function generator (110) receives polynomial parameter updates from a polynomial parameter generator (155). The polynomial parameter generator (155) uses a combination of analog and digital signal processing to create the parameter updates. This processing is performed on input signal amplitude, detected using analog circuits, and RF coupled samples of the input signal, and the output signal. By using a combination of analog and digital signal processing means, digital processing can be performed at sub-Nyquist rates, significantly reducing the cost of digital circuits. Also, since the predistortion modulation signal is created with an analog function generator, time correlating delay is minimized reducing circuit costs.
摘要翻译：公开了一种使用基于模拟多项式的预失真的预失真线性化放大器系统。模拟多项式函数发生器（110）从多项式参数发生器（155）接收多项式参数更新。多项式参数发生器（155）使用模拟和数字信号处理的组合来创建参数更新。该处理是对输入信号幅度执行的，使用模拟电路和输入信号的RF耦合样本以及输出信号进行检测。通过使用模拟和数字信号处理装置的组合，可以以亚奈奎斯特速率执行数字处理，显着降低数字电路的成本。而且，由于预失真调制信号是由模拟函数发生器产生的，所以时间相关延迟被最小化，降低了电路成本。

6. 发明申请

WO2005069897A3 WIDEBAND ENHANCED DIGITAL INJECTION PREDISTORTION SYSTEM AND METHOD 审中-公开
公开(公告)号：WO2005069897A3
公开(公告)日：2005-08-04
申请号：PCT/US2005/001449
申请日：2005-01-18
申请人： POWERWAVE TECHNOLOGIES, INC. , COVA, Armando , CARICHNER, Scott
发明人： COVA, Armando , CARICHNER, Scott
IPC分类号： H04L25/49
摘要： A system for digitally linearizing the nonlinear behaviour of RF high efficiency amplifiers employing baseband predistortion techniques is disclosed The system provides additive or multiplicative predistortion of the digital quadrature (UQ) input signal in order to minimize distortion at the output of the amplifier The predistorter (108) uses a discrete-time polynomial kernel to model the inverse transfer characteristic of the amplifier (100) providing separate and simultaneous compensation for nonlinear static distortion linear dynamic distortion and nonlinear dynamic effects including reactive electrical memory effects Compensation for thermal memory effects also is embedded in the nonlinear dynamic compensation operation of the predistorter (108) and is implemented parametrically using an autoregressive dynamics tracking mechanism The digital predistortion system of the invention may provide broadband linearization of highly nonlinear and highly efficient RF amplification circuits including, but not limited to, dynamic load modulation amplifiers

7. 发明申请

WO2010144376A1 MUTI-ELEMENT AMPLITUDE AND PHASE COMPENSATED ANTENNA ARRAY WITH ADAPTIVE PRE-DISTORTION FOR WIRELESS NETWORK 审中-公开
标题翻译：具有适应性无线网络自适应预失真的MUTI-ELEMENT AMPLITUDE AND PHASE COMPENATED ANTENNA ARRAY WITH ADAPTIVE PRE-DISTORTION FOR WIRELESS NETWORK
公开(公告)号：WO2010144376A1
公开(公告)日：2010-12-16
申请号：PCT/US2010/037657
申请日：2010-06-07
申请人： POWERWAVE TECHNOLOGIES, INC. , TEILLET, Anthony , CARICHNER, Scott , RABINOVICH, Alexander
发明人： TEILLET, Anthony , CARICHNER, Scott , RABINOVICH, Alexander
IPC分类号： H01Q3/00
CPC分类号： H03F1/3247 , H01Q1/246 , H01Q3/30 , H01Q3/36 , H01Q15/0046 , H01Q21/08 , H03F1/3241 , H03F1/3282 , H03F3/189 , H03F3/24 , H03F2200/192 , H03F2200/195 , H03F2200/204 , H03F2200/207 , H03F2200/294 , H03F2200/411 , H03F2200/451 , H04B1/0475 , H04B2001/0425
摘要： An improved communication system and method employing an actively controlled antenna array architecture is disclosed. The array (10) contains a plurality of driven radiating elements that are spatially arranged having a pair of radiating elements (112, 114) fed with an RF signal predistorted so as to provide a controlled variation of the antenna array's elevation radiation pattern. High power amplifier (PA) efficiency is maintained by adaptive predistortion, coupled to each high power PA (140, 142), while providing beam tilt and side lobe control.
摘要翻译：公开了一种使用主动控制的天线阵列架构的改进的通信系统和方法。阵列（10）包含多个被空间布置的驱动辐射元件，所述多个驱动辐射元件具有馈送有RF信号的一对辐射元件（112,114），所述RF信号被预失真以便提供天线阵列的高度辐射图案的受控变化。通过自适应预失真保持高功率放大器（PA）效率，耦合到每个高功率PA（140,142），同时提供波束倾斜和旁瓣控制。

8. 发明申请

WO2007035358A2 AMPLIFIER SYSTEM EMPLOYING ANALOG POLYNOMIAL PREDISTORTION WITH SUB-NYQUIST DIGITAL ADAPTATION 审中-公开
标题翻译：使用次NYQUIS数字适应的模拟多项式预测的放大器系统
公开(公告)号：WO2007035358A2
公开(公告)日：2007-03-29
申请号：PCT/US2006/035663
申请日：2006-09-14
申请人： POWERWAVE TECHNOLOGIES, INC. , CARICHNER, Scott , BRAITHWAITE, Richard, Neil , MASLENNIKOV, Nikolai , HUNTON, Matthew, J.
发明人： CARICHNER, Scott , BRAITHWAITE, Richard, Neil , MASLENNIKOV, Nikolai , HUNTON, Matthew, J.
IPC分类号： H03F1/26
CPC分类号： H03F1/3294 , H03F1/3241 , H03F1/3247 , H03F1/3258 , H03F2200/102 , H03F2200/216 , H04L27/364 , H04L27/368
摘要： A predistortion linearized amplifier system that uses analog polynomial based predistortion is disclosed. An analog polynomial function generator (110) receives polynomial parameter updates from a polynomial parameter generator (155). The polynomial parameter generator (155) uses a combination of analog and digital signal processing to create the parameter updates. This processing is performed on input signal amplitude, detected using analog circuits, and RF coupled samples of the input signal, and the output signal. By using a combination of analog and digital signal processing means, digital processing can be performed at sub-Nyquist rates, significantly reducing the cost of digital circuits. Also, since the predistortion modulation signal is created with an analog function generator, time correlating delay is minimized reducing circuit costs.
摘要翻译：公开了一种使用模拟多项式的预失真的预失真线性放大器系统。模拟多项式函数发生器（110）从多项式参数发生器（155）接收多项式参数更新。多项式参数发生器（155）使用模拟和数字信号处理的组合来创建参数更新。对使用模拟电路检测的输入信号幅度和输入信号的RF耦合样本以及输出信号进行该处理。通过使用模拟和数字信号处理装置的组合，可以以次奈奎斯特速率进行数字处理，显着降低数字电路的成本。此外，由于预失真调制信号是用模拟函数发生器产生的，所以时间相关延迟最小化降低了电路成本。

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