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公开(公告)号：US20160329935A1
公开(公告)日：2016-11-10
申请号：US14704294
申请日：2015-05-05
Applicant: Infineon Technologies AG
Inventor： Peter Singerl , David Seebacher , Thomas Magesacher , Franz Dielacher
CPC classification number: H04L27/205 , H04B1/0475 , H04B1/0483 , H04L25/4902
Abstract: The present disclosure relates to a low-complexity transmitter architecture that drives phase modulators with digital signals to generate a pulse width modulated (PWM) signal that is transmitted by an antenna. In some embodiments, the system has a pre-processing element that generates first and second digital control signals from a digital baseband signal. A first phase modulation component introduces a first phase shift into a first local oscillator signal based upon the first control signal and generates a first digital signal corresponding to the first phase shift. A second phase modulation component introduces a second phase shift into the first local oscillator signal based upon the second control signal and generates a second digital signal corresponding to the second phase shift. A combination element is configured to combine the first and second digital output signals to generate an RF pulse width modulated (RF-PWM) signal.
Abstract translation: 本公开涉及一种低复杂度的发射机架构，其用数字信号驱动相位调制器以产生由天线发射的脉宽调制（PWM）信号。 在一些实施例中，系统具有从数字基带信号产生第一和第二数字控制信号的预处理元件。 第一相位调制分量基于第一控制信号将第一相移引入第一本地振荡器信号，并产生对应于第一相移的第一数字信号。 第二相位调制分量基于第二控制信号将第二相移引入第一本地振荡器信号，并产生对应于第二相移的第二数字信号。 组合元件被配置为组合第一和第二数字输出信号以产生RF脉冲宽度调制（RF-PWM）信号。
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公开(公告)号：US20170126261A1
公开(公告)日：2017-05-04
申请号：US14931195
申请日：2015-11-03
Applicant: Infineon Technologies AG
Inventor： Peter Singerl , Thomas Magesacher , Martin Mataln
IPC: H04B1/04
CPC classification number: H04B1/0475 , H03F1/3247 , H03F1/3294 , H03F2200/102 , H04B2001/0425
Abstract: An RF transmitter arrangement using analog pre-distortion is disclosed. The arrangement includes lower bandwidth circuitry, an analog pre-distorter, and a non-linear amplifier chain. The lower bandwidth circuitry is configured to generate an analog signal. The analog pre-distorter is configured to apply a non-linear distortion to the analog original signal based on a coupled feedback signal in order to generate an RF output signal. The non-linear amplifier chain is configured to amplify the RF output signal to generate a transmission signal relative to the analog original signal. The coupled feedback signal is derived from the transmission signal.
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3.发明申请Devices and Methods for Adaptive Crest Factor Reduction in Dynamic Predistortion 审中-公开动态预失真中自适应峰值因子降低的装置和方法公开(公告)号：US20160373072A1
公开(公告)日：2016-12-22
申请号：US15251266
申请日：2016-08-30
Applicant: Infineon Technologies AG
Inventor： Thomas Magesacher , Peter Singerl , Martin Mataln , Christian Schuberth
CPC classification number: H03F1/3247 , H03F1/3241 , H03F1/34 , H03F3/189 , H03F3/24 , H03F2200/451 , H04B1/0475 , H04B2001/0425 , H04B2001/0433
Abstract: A non-linear pre-distortion engine maintaining constant peak power at its output is disclosed. The engine includes a compression estimator, a crest factor reduction processor, a digital pre-distorter and a power amplifier. The compression estimator is configured to generate a compression estimate based on an input signal and a feedback signal. The feedback signal is based on an RF output signal. The crest factor reduction processor is configured to reduce a crest factor of the input signal to generate a crest factor reduced signal based on the compression estimate. The digital pre-distorter is configured to apply a pre-distortion to the crest factor reduced signal after an initial phase and generate a pre-distorted signal based on pre-distortion parameters. The power amplifier is configured to amplify the pre-distorted signal to generate the RF output signal. The operation of the chain consisting of pre-distorter and power amplifier is substantially linear and the pre-distorter maintains constant peak power at its output, which eliminates unwanted avalanche or pre-distorter blow-up issues.
Abstract translation: 公开了在其输出端保持恒定峰值功率的非线性预失真引擎。 引擎包括压缩估计器，波峰因数降低处理器，数字预失真器和功率放大器。 压缩估计器被配置为基于输入信号和反馈信号产生压缩估计。 反馈信号基于RF输出信号。 波峰因数降低处理器被配置为降低输入信号的波峰因数，以基于压缩估计产生波峰因数降低信号。 数字预失真器被配置为在初始相位之后对波峰因数降低信号施加预失真，并且基于预失真参数产生预失真信号。 功率放大器被配置为放大预失真信号以产生RF输出信号。 由预失真器和功率放大器组成的链条的操作基本上是线性的，并且预失真器在其输出端保持恒定的峰值功率，这消除了不必要的雪崩或预失真器爆炸问题。
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公开(公告)号：US09520923B2
公开(公告)日：2016-12-13
申请号：US14704294
申请日：2015-05-05
Applicant: Infineon Technologies AG
Inventor： Peter Singerl , David Seebacher , Thomas Magesacher , Franz Dielacher
CPC classification number: H04L27/205 , H04B1/0475 , H04B1/0483 , H04L25/4902
Abstract: The present disclosure relates to a low-complexity transmitter architecture that drives phase modulators with digital signals to generate a pulse width modulated (PWM) signal that is transmitted by an antenna. In some embodiments, the system has a pre-processing element that generates first and second digital control signals from a digital baseband signal. A first phase modulation component introduces a first phase shift into a first local oscillator signal based upon the first control signal and generates a first digital signal corresponding to the first phase shift. A second phase modulation component introduces a second phase shift into the first local oscillator signal based upon the second control signal and generates a second digital signal corresponding to the second phase shift. A combination element is configured to combine the first and second digital output signals to generate an RF pulse width modulated (RF-PWM) signal.
Abstract translation: 本公开涉及一种低复杂度的发射机架构，其用数字信号驱动相位调制器以产生由天线发射的脉宽调制（PWM）信号。 在一些实施例中，系统具有从数字基带信号产生第一和第二数字控制信号的预处理元件。 第一相位调制分量基于第一控制信号将第一相移引入第一本地振荡器信号，并产生对应于第一相移的第一数字信号。 第二相位调制分量基于第二控制信号将第二相移引入第一本地振荡器信号，并产生对应于第二相移的第二数字信号。 组合元件被配置为组合第一和第二数字输出信号以产生RF脉冲宽度调制（RF-PWM）信号。
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公开(公告)号：US09484962B1
公开(公告)日：2016-11-01
申请号：US14731586
申请日：2015-06-05
Applicant: Infineon Technologies AG
Inventor： Thomas Magesacher , Peter Singerl , Martin Mataln
CPC classification number: H04B1/0475 , H03F1/3241 , H04B2001/0425
Abstract: One embodiment relates to a system which includes a pre-distortion unit, a power amplifier circuit, a power amplifier model, and a parameter estimation unit. The pre-distortion unit is configured to pre-distort an input signal based on a model parameter by directly computing the model inverse in an iterative fashion, thereby providing a pre-distorted signal. The power amplifier circuit is configured to amplify the pre-distorted signal. The power amplifier model is configured to model amplification of the pre-distorted signal by the power amplifier circuit based on the pre-distorted signal and the model parameter. Based on the pre-distorted signal and an error signal, the parameter estimation unit is configured to update the model parameter provided to the pre-distortion unit and the power amplifier model. The error signal represents a difference between an output signal from the power amplifier circuit and a modeled output signal from the power amplifier model.
Abstract translation: 一个实施例涉及一种包括预失真单元，功率放大器电路，功率放大器模型和参数估计单元的系统。 预失真单元被配置为通过以迭代方式直接计算模型逆矩阵来基于模型参数来预失真输入信号，从而提供预失真信号。 功率放大器电路被配置为放大预失真信号。 功率放大器模型被配置为基于预失真信号和模型参数来由功率放大器电路建模预失真信号的放大。 基于预失真信号和误差信号，参数估计单元被配置为更新提供给预失真单元和功率放大器模型的模型参数。 误差信号表示来自功率放大器电路的输出信号与来自功率放大器模型的建模输出信号之间的差异。
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Patent Agency Ranking
6.发明申请DIGITAL PRE-DISTORTION AND POST-DISTORTION BASED ON SEGMENTWISE PIECEWISE POLYNOMIAL APPROXIMATION 审中-公开基于分段多项式逼近的数字预失真和失败公开(公告)号：US20160034421A1
公开(公告)日：2016-02-04
申请号：US14449326
申请日：2014-08-01
Applicant: INFINEON TECHNOLOGIES AG
Inventor： Thomas Magesacher , Peter Singerl , Martin Mataln , Christian Schuberth
CPC classification number: G06F17/11 , G06F17/17 , G06F17/5009 , H03F1/3247 , H03F1/3258 , H03F2201/3233 , H04B10/2507 , H04B2210/252 , H04B2210/254 , H04L27/3427 , H04L27/368
Abstract: A nonlinear distorter is configured to mitigate nonlinearity from a nonlinear component of a nonlinear system. The nonlinear distorter operates to model the nonlinearity as a function of a piecewise polynomial approximation applied to segments of a nonlinear function of the nonlinearity. The nonlinear distorter generates a model output that decreases the nonlinearity of the nonlinear component.
Abstract translation: 非线性变阻器被配置为从非线性系统的非线性分量减轻非线性。 非线性变异器用于将非线性模型作为应用于非线性的非线性函数的分段的分段多项式近似的函数。 非线性损耗器产生一个减小非线性分量非线性的模型输出。
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公开(公告)号：US10382073B2
公开(公告)日：2019-08-13
申请号：US14931195
申请日：2015-11-03
Applicant: Infineon Technologies AG
Inventor： Peter Singerl , Thomas Magesacher , Martin Mataln
Abstract: An RF transmitter arrangement using analog pre-distortion is disclosed. The arrangement includes lower bandwidth circuitry, an analog pre-distorter, and a non-linear amplifier chain. The lower bandwidth circuitry is configured to generate an analog signal. The analog pre-distorter is configured to apply a non-linear distortion to the analog original signal based on a coupled feedback signal in order to generate an RF output signal. The non-linear amplifier chain is configured to amplify the RF output signal to generate a transmission signal relative to the analog original signal. The coupled feedback signal is derived from the transmission signal.
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公开(公告)号：US09866183B2
公开(公告)日：2018-01-09
申请号：US15251266
申请日：2016-08-30
Applicant: Infineon Technologies AG
Inventor： Thomas Magesacher , Peter Singerl , Martin Mataln , Christian Schuberth
CPC classification number: H03F1/3247 , H03F1/3241 , H03F1/34 , H03F3/189 , H03F3/24 , H03F2200/451 , H04B1/0475 , H04B2001/0425 , H04B2001/0433
Abstract: A non-linear pre-distortion engine maintaining constant peak power at its output is disclosed. The engine includes a compression estimator, a crest factor reduction processor, a digital pre-distorter and a power amplifier. The compression estimator is configured to generate a compression estimate based on an input signal and a feedback signal. The feedback signal is based on an RF output signal. The crest factor reduction processor is configured to reduce a crest factor of the input signal to generate a crest factor reduced signal based on the compression estimate. The digital pre-distorter is configured to apply a pre-distortion to the crest factor reduced signal after an initial phase and generate a pre-distorted signal based on pre-distortion parameters. The power amplifier is configured to amplify the pre-distorted signal to generate the RF output signal. The operation of the chain consisting of pre-distorter and power amplifier is substantially linear and the pre-distorter maintains constant peak power at its output, which eliminates unwanted avalanche or pre-distorter blow-up issues.
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9.发明申请DEVICES AND METHODS FOR ADAPTIVE CREST FACTOR REDUCTION IN DYNAMIC PREDISTORTION 有权动态预测中自适应检测因子减少的装置和方法公开(公告)号：US20160365880A1
公开(公告)日：2016-12-15
申请号：US14736957
申请日：2015-06-11
Applicant: Infineon Technologies AG
Inventor： Thomas Magesacher , Peter Singerl , Martin Mataln , Christian Schuberth
IPC: H04B1/04
CPC classification number: H03F1/3247 , H03F1/3241 , H03F1/34 , H03F3/189 , H03F3/24 , H03F2200/451 , H04B1/0475 , H04B2001/0425 , H04B2001/0433
Abstract: A non-linear pre-distortion engine maintaining constant peak power at its output is disclosed. The engine includes a compression estimator, a crest factor reduction processor, a digital pre-distorter and a power amplifier. The compression estimator is configured to generate a compression estimate based on an input signal and a feedback signal. The feedback signal is based on an RF output signal. The crest factor reduction processor is configured to reduce a crest factor of the input signal to generate a crest factor reduced signal based on the compression estimate. The digital pre-distorter is configured to apply a pre-distortion to the crest factor reduced signal after an initial phase and generate a pre-distorted signal based on pre-distortion parameters. The power amplifier is configured to amplify the pre-distorted signal to generate the RF output signal. The operation of the chain consisting of pre-distorter and power amplifier is substantially linear and the pre-distorter maintains constant peak power at its output, which eliminates unwanted avalanche or pre-distorter blow-up issues.
Abstract translation: 公开了在其输出端保持恒定峰值功率的非线性预失真引擎。 引擎包括压缩估计器，波峰因数降低处理器，数字预失真器和功率放大器。 压缩估计器被配置为基于输入信号和反馈信号产生压缩估计。 反馈信号基于RF输出信号。 波峰因数降低处理器被配置为降低输入信号的波峰因数，以基于压缩估计产生波峰因数降低信号。 数字预失真器被配置为在初始相位之后对波峰因数降低信号施加预失真，并且基于预失真参数产生预失真信号。 功率放大器被配置为放大预失真信号以产生RF输出信号。 由预失真器和功率放大器组成的链条的操作基本上是线性的，并且预失真器在其输出端保持恒定的峰值功率，这消除了不必要的雪崩或预失真器爆炸问题。
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10.发明授权Devices and methods for adaptive crest factor reduction in dynamic predistortion 有权动态预失真自适应波峰因数降低的装置和方法公开(公告)号：US09509350B1
公开(公告)日：2016-11-29
申请号：US14736957
申请日：2015-06-11
Applicant: Infineon Technologies AG
Inventor： Thomas Magesacher , Peter Singerl , Martin Mataln , Christian Schuberth
CPC classification number: H03F1/3247 , H03F1/3241 , H03F1/34 , H03F3/189 , H03F3/24 , H03F2200/451 , H04B1/0475 , H04B2001/0425 , H04B2001/0433
Abstract: A non-linear pre-distortion engine maintaining constant peak power at its output is disclosed. The engine includes a compression estimator, a crest factor reduction processor, a digital pre-distorter and a power amplifier. The compression estimator is configured to generate a compression estimate based on an input signal and a feedback signal. The feedback signal is based on an RF output signal. The crest factor reduction processor is configured to reduce a crest factor of the input signal to generate a crest factor reduced signal based on the compression estimate. The digital pre-distorter is configured to apply a pre-distortion to the crest factor reduced signal after an initial phase and generate a pre-distorted signal based on pre-distortion parameters. The power amplifier is configured to amplify the pre-distorted signal to generate the RF output signal. The operation of the chain consisting of pre-distorter and power amplifier is substantially linear and the pre-distorter maintains constant peak power at its output, which eliminates unwanted avalanche or pre-distorter blow-up issues.
Abstract translation: 公开了在其输出端保持恒定峰值功率的非线性预失真引擎。 引擎包括压缩估计器，波峰因数降低处理器，数字预失真器和功率放大器。 压缩估计器被配置为基于输入信号和反馈信号产生压缩估计。 反馈信号基于RF输出信号。 波峰因数降低处理器被配置为降低输入信号的波峰因数，以基于压缩估计产生波峰因数降低信号。 数字预失真器被配置为在初始相位之后对波峰因数降低信号施加预失真，并且基于预失真参数产生预失真信号。 功率放大器被配置为放大预失真信号以产生RF输出信号。 由预失真器和功率放大器组成的链条的操作基本上是线性的，并且预失真器在其输出端保持恒定的峰值功率，这消除了不必要的雪崩或预失真器爆炸问题。
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