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1.发明授权Joint adaptive bias point adjustment and digital pre-distortion for power amplifier 有权功率放大器的联合自适应偏置点调整和数字预失真公开(公告)号：US08908751B2
公开(公告)日：2014-12-09
申请号：US13036758
申请日：2011-02-28
申请人： Andrea Camuffo , Chi-Tao Goe , Bernhard Sogl , Sandro Pinarello , Jan-Erik Mueller , Nick Shute
发明人： Andrea Camuffo , Chi-Tao Goe , Bernhard Sogl , Sandro Pinarello , Jan-Erik Mueller , Nick Shute
CPC分类号： H04B1/0475 , H03F1/0255 , H03F1/0277 , H03F1/24 , H03F1/3241 , H03F1/3247 , H03F3/211 , H03F3/72 , H03F2200/321 , H03F2201/3233 , H03F2203/7215 , H03F2203/7236 , H04B2001/0425
摘要： One embodiment of the present invention relates to a method and apparatus are provided herein for reducing the power consumption of a transmission chain while maintaining an acceptable figure of merit (e.g., linearity). In one embodiment, an adaptive biasing element is configured to perform adaptive biasing to reduce current consumption of a transmission chain by adjusting the operating point of one or more transmission chain elements (e.g., power amplifier, mixer, etc.). However, since adaptive biasing may reduce the linearity of a transmitted signal, its use is limited by the degradation of figure of merit caused by the introduced non-linearities. Accordingly, a pre-distortion element may be configured to perform adaptive digital pre-distortion (DPD) on a transmission chain input signal to account for non-linearities generated through the adaptive biasing, therefore allowing the adaptive biasing to further reduce the current consumption while maintaining an acceptable figure of merit.
摘要翻译： 本发明的一个实施例涉及一种方法和装置，用于在保持可接受的品质因数（例如线性度）的同时降低传输链的功率消耗。 在一个实施例中，自适应偏置元件被配置为执行自适应偏置以通过调整一个或多个传输链元件（例如，功率放大器，混频器等）的工作点来减小传输链的电流消耗。 然而，由于自适应偏置可以降低发射信号的线性度，所以其使用受到引入的非线性引起的品质因数的劣化的限制。 因此，预失真元件可以被配置为在传输链输入信号上执行自适应数字预失真（DPD），以解决通过自适应偏置产生的非线性，从而允许自适应偏置进一步降低电流消耗，同时 保持可接受的品质因数。
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公开(公告)号：US08912851B2
公开(公告)日：2014-12-16
申请号：US12981735
申请日：2010-12-30
申请人： Sandro Pinarello , Andrea Camuffo , Chi-Tao Goe , Nick Shute , Jan-Erik Mueller , Bernhard Sogl
发明人： Sandro Pinarello , Andrea Camuffo , Chi-Tao Goe , Nick Shute , Jan-Erik Mueller , Bernhard Sogl
CPC分类号： H03G3/3042 , H03F1/0272 , H03F1/30 , H03F1/3247 , H03F3/195 , H03F3/24
摘要： An apparatus for providing a linearity information associated with an amplifier includes an operating state determinator and an evaluator. The operating state determinator is configured to obtain information describing a gain of the amplifier for at least one bias condition of the amplifier. The evaluator is configured to obtain the linearity information based on both the information describing the gain of the amplifier and information about the at least one bias condition of the amplifier using a gain-bias characteristic of the amplifier. A bias circuit including the apparatus for providing the linearity information is also disclosed. A corresponding method for providing the linearity information includes: using the information describing the gain of the amplifier and the information about the at least one bias condition with the gain-bias characteristics to determine a relation of a current operating point described by the information with respect to the gain-bias characteristic; and deriving the linearity information from said relation.
摘要翻译： 用于提供与放大器相关联的线性度信息的装置包括操作状态确定器和评估器。 操作状态确定器被配置为获得关于放大器的至少一个偏置条件的描述放大器的增益的信息。 评估器被配置为基于描述放大器的增益的信息和关于使用放大器的增益偏置特性的放大器的至少一个偏置条件的信息来获得线性度信息。 还公开了一种包括用于提供线性度信息的装置的偏置电路。 用于提供线性度信息的相应方法包括：使用描述放大器的增益的信息和关于具有增益偏差特性的至少一个偏置条件的信息来确定由信息描述的当前操作点与关于 到增益偏置特性; 并从所述关系导出线性度信息。
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3.发明申请Joint Adaptive Bias Point Adjustment and Digital Pre-Distortion for Power Amplifier 有权功率放大器的联合自适应偏置点调整和数字预失真公开(公告)号：US20120219048A1
公开(公告)日：2012-08-30
申请号：US13036758
申请日：2011-02-28
申请人： Andrea Camuffo , Chi-Tao Goe , Bernhard Sogl , Sandro Pinarello , Jan-Erik Mueller , Nick Shute
发明人： Andrea Camuffo , Chi-Tao Goe , Bernhard Sogl , Sandro Pinarello , Jan-Erik Mueller , Nick Shute
CPC分类号： H04B1/0475 , H03F1/0255 , H03F1/0277 , H03F1/24 , H03F1/3241 , H03F1/3247 , H03F3/211 , H03F3/72 , H03F2200/321 , H03F2201/3233 , H03F2203/7215 , H03F2203/7236 , H04B2001/0425
摘要： One embodiment of the present invention relates to a method and apparatus are provided herein for reducing the power consumption of a transmission chain while maintaining an acceptable figure of merit (e.g., linearity). In one embodiment, an adaptive biasing element is configured to perform adaptive biasing to reduce current consumption of a transmission chain by adjusting the operating point of one or more transmission chain elements (e.g., power amplifier, mixer, etc.). However, since adaptive biasing may reduce the linearity of a transmitted signal, its use is limited by the degradation of figure of merit caused by the introduced non-linearities. Accordingly, a pre-distortion element may be configured to perform adaptive digital pre-distortion (DPD) on a transmission chain input signal to account for non-linearities generated through the adaptive biasing, therefore allowing the adaptive biasing to further reduce the current consumption while maintaining an acceptable figure of merit.
摘要翻译： 本发明的一个实施例涉及一种方法和装置，用于在保持可接受的品质因数（例如线性度）的同时降低传输链的功率消耗。 在一个实施例中，自适应偏置元件被配置为执行自适应偏置以通过调整一个或多个传输链元件（例如，功率放大器，混频器等）的工作点来减小传输链的电流消耗。 然而，由于自适应偏置可以降低发射信号的线性度，所以其使用受到引入的非线性引起的品质因数的劣化的限制。 因此，预失真元件可以被配置为在传输链输入信号上执行自适应数字预失真（DPD），以解决通过自适应偏置产生的非线性，从而允许自适应偏置进一步降低电流消耗，同时 保持可接受的品质因数。
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公开(公告)号：US20120169424A1
公开(公告)日：2012-07-05
申请号：US12981735
申请日：2010-12-30
申请人： Sandro Pinarello , Andrea Camuffo , Chi-Tao Goe , Nick Shute , Jan-Erik Mueller , Bernhard Sogl
发明人： Sandro Pinarello , Andrea Camuffo , Chi-Tao Goe , Nick Shute , Jan-Erik Mueller , Bernhard Sogl
IPC分类号： H03G3/30
CPC分类号： H03G3/3042 , H03F1/0272 , H03F1/30 , H03F1/3247 , H03F3/195 , H03F3/24
摘要： An apparatus for providing a linearity information associated with an amplifier includes an operating state determinator and an evaluator. The operating state determinator is configured to obtain information describing a gain of the amplifier for at least one bias condition of the amplifier. The evaluator is configured to obtain the linearity information based on both the information describing the gain of the amplifier and information about the at least one bias condition of the amplifier using a gain-bias characteristic of the amplifier. A bias circuit including the apparatus for providing the linearity information is also disclosed. A corresponding method for providing the linearity information includes: using the information describing the gain of the amplifier and the information about the at least one bias condition with the gain-bias characteristics to determine a relation of a current operating point described by the information with respect to the gain-bias characteristic; and deriving the linearity information from said relation.
摘要翻译： 用于提供与放大器相关联的线性度信息的装置包括操作状态确定器和评估器。 操作状态确定器被配置为获得关于放大器的至少一个偏置条件的描述放大器的增益的信息。 评估器被配置为基于描述放大器的增益的信息和关于使用放大器的增益偏置特性的放大器的至少一个偏置条件的信息来获得线性度信息。 还公开了一种包括用于提供线性度信息的装置的偏置电路。 用于提供线性度信息的相应方法包括：使用描述放大器的增益的信息和关于具有增益偏差特性的至少一个偏置条件的信息来确定由信息描述的当前操作点与关于 到增益偏置特性; 并从所述关系导出线性度信息。
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公开(公告)号：US20130226489A1
公开(公告)日：2013-08-29
申请号：US13408551
申请日：2012-02-29
IPC分类号： G06F19/00
CPC分类号： G01R23/20 , G01R29/26 , H04L27/368
摘要： A distortion estimation apparatus for estimating distortion includes a feedback element, a nonlinearity determiner, and a distortion simulator. The feedback element provides a feedback signal derived from a distorted output signal of the distorting element. A signal processing quality of the feedback element is lower than an associated signal property of the distorted output signal. The nonlinearity determiner receives the feedback signal and an input signal to the distorting element or a signal derived from the input signal. The nonlinearity determiner determines an estimated transmission characteristic of the distorting element by relating signal properties of the feedback signal and the input signal or the signal derived from the input signal. The distortion simulator estimates the distortion caused by the distorting element based on the input signal or the signal derived from the input signal and the estimated transmission characteristic.
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公开(公告)号：US09026391B2
公开(公告)日：2015-05-05
申请号：US13408551
申请日：2012-02-29
IPC分类号： H04L27/36
CPC分类号： G01R23/20 , G01R29/26 , H04L27/368
摘要： A distortion estimation apparatus for estimating distortion includes a feedback element, a nonlinearity determiner, and a distortion simulator. The feedback element provides a feedback signal derived from a distorted output signal of the distorting element. A signal processing quality of the feedback element is lower than an associated signal property of the distorted output signal. The nonlinearity determiner receives the feedback signal and an input signal to the distorting element or a signal derived from the input signal. The nonlinearity determiner determines an estimated transmission characteristic of the distorting element by relating signal properties of the feedback signal and the input signal or the signal derived from the input signal. The distortion simulator estimates the distortion caused by the distorting element based on the input signal or the signal derived from the input signal and the estimated transmission characteristic.
摘要翻译： 用于估计失真的失真估计装置包括反馈元件，非线性确定器和失真模拟器。 反馈元件提供从失真元件的失真输出信号导出的反馈信号。 反馈元件的信号处理质量低于失真输出信号的相关信号特性。 非线性确定器接收反馈信号和输入信号到失真元件或从输入信号导出的信号。 非线性确定器通过将反馈信号和输入信号的信号特性或从输入信号导出的信号相关联来确定失真元件的估计传输特性。 失真模拟器基于输入信号或从输入信号导出的信号和估计的传输特性来估计由失真元件引起的失真。
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公开(公告)号：US20090322421A1
公开(公告)日：2009-12-31
申请号：US12146979
申请日：2008-06-26
IPC分类号： H03F3/68
CPC分类号： H03G1/0088 , H03F1/0261 , H03F1/0277 , H03F1/0294 , H03F3/211 , H03F3/24 , H03F2200/198 , H03F2200/204 , H03F2200/405 , H04W52/52
摘要： One embodiment of the present invention relates to a method for transistor matching. The power transmitter comprises a first, second, and third amplification path. The paths are selectively activated and deactivated to output a received signal with high efficiency and linearity. The first amplification path is configured to receive a first signal and output a first amplified signal to a first port of a output power combiner when activated and provide an impedance that results in a high reflection factor when deactivated. The second amplification path is configured to receive a second signal with 90° phase shift with respect to the first signal and output a second amplified signal to a second port of the combiner when activated and provide an impedance that results in a high reflection factor when deactivated. The third amplification path is configured to receive a third signal and output a third amplified signal to a third port of the output power combiner when activated and provide an impedance that results in an impedance that matches the output impedance when deactivated.
摘要翻译： 本发明的一个实施例涉及一种用于晶体管匹配的方法。 功率发射器包括第一，第二和第三放大路径。 选择性地激活和去激活路径以高效率和线性地输出接收到的信号。 第一放大路径被配置为在激活时接收第一信号并将第一放大信号输出到输出功率组合器的第一端口，并且提供当停用时导致高反射系数的阻抗。 第二放大路径被配置为接收相对于第一信号具有90°相移的第二信号，并且当被激活时将第二放大信号输出到组合器的第二端口，并且提供当停用时导致高反射因数的阻抗 。 第三放大路径被配置为在被激活时接收第三信号并将第三放大信号输出到输出功率组合器的第三端口，并且提供当停用时导致与输出阻抗匹配的阻抗的阻抗。
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公开(公告)号：US20150015327A1
公开(公告)日：2015-01-15
申请号：US13940682
申请日：2013-07-12
申请人： Stefan Glock , Bernhard Sogl , Jan-Erik Mueller
发明人： Stefan Glock , Bernhard Sogl , Jan-Erik Mueller
CPC分类号： H03F1/3258 , H03F1/3247 , H03F3/19 , H03F2200/451 , H03F2201/3233
摘要： A controller for controlling a signal processor includes a transformation unit and a control unit. The transformation unit is configured to generate at least one amplitude-modulation-to-phase-modulation-distortion within a signal, output by using the signal processor according to a signal processing, based on generated at least one amplitude-modulation-to-amplitude-modulation-distortion of the signal. The control unit is configured to adjust the signal processing of the signal processor so as to minimize the at least one amplitude-modulation-to-phase-modulation-distortion.
摘要翻译： 用于控制信号处理器的控制器包括变换单元和控制单元。 转换单元被配置为基于产生的至少一个幅度调制幅度在信号中产生根据信号处理的信号处理器输出的至少一个幅度调制到相位调制失真 信号的调制失真。 控制单元被配置为调整信号处理器的信号处理，以使至少一个幅度调制到相位调制失真最小化。
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公开(公告)号：US20140133526A1
公开(公告)日：2014-05-15
申请号：US13674599
申请日：2012-11-12
CPC分类号： H03F1/0233 , H03F1/0222
摘要： A circuit for providing a bias signal for a power amplifier includes a first input, a second input and an output. The first input is configured to receive an input signal to be amplified by the power amplifier. The second input is configured to receive the amplified input signal. The output is configured to provide the bias signal.
摘要翻译： 用于为功率放大器提供偏置信号的电路包括第一输入，第二输入和输出。 第一输入被配置为接收要由功率放大器放大的输入信号。 第二输入被配置为接收放大的输入信号。 输出被配置为提供偏置信号。
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公开(公告)号：US20150023445A1
公开(公告)日：2015-01-22
申请号：US13945096
申请日：2013-07-18
CPC分类号： H03F1/0233 , H03F1/02 , H03F1/0227 , H03F1/3247 , H03F3/21 , H03F2200/102 , H03F2200/129 , H03G3/30 , H04L25/03 , H04L25/03343 , H04L27/02 , H04L27/04
摘要： A communication system utilizing adaptive envelope tracking includes a transmit path, a feedback receiver, a parameter component and an envelope tracking component. The transmit path is configured to generate a transmit signal. The feedback receiver is configured to generate a feedback signal from the transmit signal. The parameter component is configured to generate linearity parameters from the feedback signal and the baseband signal. The envelope tracking component is configured to generate a supply control signal having time delay adjustments.
摘要翻译： 利用自适应包络跟踪的通信系统包括发射路径，反馈接收机，参数分量和包络跟踪分量。 发送路径被配置为生成发送信号。 反馈接收器被配置为从发送信号产生反馈信号。 参数组件被配置为从反馈信号和基带信号产生线性参数。 包络跟踪部件被配置为产生具有时间延迟调整的电源控制信号。
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