公开(公告)号：US08433263B2

公开(公告)日：2013-04-30

申请号：US13120519

申请日：2008-09-24

申请人： Patrick Pratt ,  Jau Horng Chen ,  George Norris

发明人： Patrick Pratt ,  Jau Horng Chen ,  George Norris

IPC分类号： H04B1/04 ,  H01Q11/12

CPC分类号： H03F1/3247

摘要： A wireless communication unit comprises a transmitter having a forward path comprising a power amplifier, PA, and a feedback path arranged to feed back a portion of a signal output from the PA to a point in the forward path prior to the PA. The forward path and feedback path form a constant gain tracking (CGT) loop. The feedback path comprises an adaptive predistortion logic module located outside of the CGT loop and arranged to form an APD loop with the forward path and feedback path. The CGT loop comprises a controller logic module arranged to determine a gain offset of a signal routed through the forward path and feedback path and in response thereto set a drive level of the PA.

摘要翻译： 无线通信单元包括具有正向路径的发射机，该前向路径包括功率放大器PA和反馈路径，所述反馈路径被布置为将从PA输出的信号的一部分反馈到PA之前的前向路径中的一个点。 正向路径和反馈路径形成恒定增益跟踪（CGT）循环。 反馈路径包括位于CGT环路外部的自适应预失真逻辑模块，并被布置成与前向路径和反馈路径形成APD环路。 CGT循环包括控制器逻辑模块，其被布置为确定通过前向路径和反馈路径路由的信号的增益偏移，并响应于此设置PA的驱动电平。

公开(公告)号：US07929927B2

公开(公告)日：2011-04-19

申请号：US11927241

申请日：2007-10-29

申请人： George B. Norris ,  Jau Horng Chen ,  Claudio G. Rey ,  Joseph Staudinger

发明人： George B. Norris ,  Jau Horng Chen ,  Claudio G. Rey ,  Joseph Staudinger

IPC分类号： H04B1/04 ,  H03C1/62

CPC分类号： H03F1/3247 ,  H03F1/3241 ,  H03F1/34 ,  H03F3/24 ,  H03F2201/3233 ,  H04B2001/0425 ,  H04B2001/0433

摘要： Embodiments include methods, apparatus, and electronic systems adapted to perform adaptive pre-distortion. Embodiments include combining an input sample with a gain value to generate a pre-distorted data sample, where the gain value is a function of at least one gain entry stored within a gain lookup table. An amplified analog signal is generated from the pre-distorted data sample, and a feedback sample is also generated, which corresponds to an antenna output signal. The antenna output signal includes the amplified analog signal. A difference indicator is generated to reflect a difference between the input sample and the feedback sample, and at least one updated gain value is generated based on a comparison between the difference indicator and at least one previous difference indicator. At least one gain entry within the gain lookup table is updated with the at least one updated gain value.

摘要翻译： 实施例包括适于执行自适应预失真的方法，装置和电子系统。 实施例包括将输入样本与增益值组合以生成预失真数据样本，其中增益值是存储在增益查找表内的至少一个增益条目的函数。 从预失真的数据样本产生放大的模拟信号，并且还产生对应于天线输出信号的反馈样本。 天线输出信号包括放大的模拟信号。 生成差异指示符以反映输入样本和反馈样本之间的差异，并且基于差异指示符与至少一个先前差异指标之间的比较来生成至少一个更新的增益值。 增益查找表内的至少一个增益条目用至少一个更新的增益值更新。

公开(公告)号：US20090111399A1

公开(公告)日：2009-04-30

申请号：US11927241

申请日：2007-10-29

申请人： George B. Norris ,  Jau Horng Chen ,  Claudio G. Rey ,  Joseph Staudinger

发明人： George B. Norris ,  Jau Horng Chen ,  Claudio G. Rey ,  Joseph Staudinger

IPC分类号： H04B1/00

CPC分类号： H03F1/3247 ,  H03F1/3241 ,  H03F1/34 ,  H03F3/24 ,  H03F2201/3233 ,  H04B2001/0425 ,  H04B2001/0433

摘要： Embodiments include methods, apparatus, and electronic systems adapted to perform adaptive pre-distortion. Embodiments include combining an input sample with a gain value to generate a pre-distorted data sample, where the gain value is a function of at least one gain entry stored within a gain lookup table. An amplified analog signal is generated from the pre-distorted data sample, and a feedback sample is also generated, which corresponds to an antenna output signal. The antenna output signal includes the amplified analog signal. A difference indicator is generated to reflect a difference between the input sample and the feedback sample, and at least one updated gain value is generated based on a comparison between the difference indicator and at least one previous difference indicator. At least one gain entry within the gain lookup table is updated with the at least one updated gain value.

摘要翻译： 实施例包括适于执行自适应预失真的方法，装置和电子系统。 实施例包括将输入样本与增益值组合以生成预失真数据样本，其中增益值是存储在增益查找表内的至少一个增益条目的函数。 从预失真的数据样本产生放大的模拟信号，并且还产生对应于天线输出信号的反馈样本。 天线输出信号包括放大的模拟信号。 生成差异指示符以反映输入样本和反馈样本之间的差异，并且基于差异指示符与至少一个先前差异指标之间的比较来生成至少一个更新的增益值。 增益查找表内的至少一个增益条目用至少一个更新的增益值更新。

公开(公告)号：US08068574B2

公开(公告)日：2011-11-29

申请号：US11755960

申请日：2007-05-31

申请人： George Norris ,  Joseph Staudinger ,  Jau-Horng Chen

发明人： George Norris ,  Joseph Staudinger ,  Jau-Horng Chen

IPC分类号： H04L7/00

CPC分类号： H03F1/3247 ,  H03F2201/3233

摘要： In an embodiment, a digital pre-distortion apparatus processes an input signal to produce a pre-distorted signal, and processes the pre-distorted signal to produce a feedback signal. The apparatus also rotates an adjustment gain by a gain rotation angle to produce a rotated adjustment gain, where the gain rotation angle is based on a phase difference between the input signal and the feedback signal. The apparatus also applies the rotated adjustment gain to the feedback signal, which may result in rotation of the feedback signal into a target phase region.

摘要翻译： 在一个实施例中，数字预失真设备处理输入信号以产生预失真信号，并处理预失真信号以产生反馈信号。 该装置还使调节增益旋转增益旋转角度以产生旋转的调节增益，其中增益旋转角度基于输入信号和反馈信号之间的相位差。 该装置还将旋转的调节增益应用于反馈信号，这可能导致反馈信号转动到目标相位区域。

公开(公告)号：US20120114083A1

公开(公告)日：2012-05-10

申请号：US13100535

申请日：2011-05-04

申请人： Jau-Horng Chen ,  Yi-Jan Emery Chen

发明人： Jau-Horng Chen ,  Yi-Jan Emery Chen

IPC分类号： H04L27/08

CPC分类号： H03G3/3042

摘要： A method for generating a modulated RF signal with high dynamic range is disclosed, which electrically combines average output power adjustment and instantaneous output power adjustment to improve the dynamic range of output power of an RF signal. Compared to the single control mechanism in the traditional method for generating a modulated RF signal, the method for generating a modulated RF signal proposed by the present invention can be applied to produce a variety of highly efficient RF transmitters with high dynamic range.

摘要翻译： 公开了一种用于产生具有高动态范围的调制RF信号的方法，其将平均输出功率调整和瞬时输出功率调整电合成以提高RF信号的输出功率的动态范围。 与用于生成调制RF信号的传统方法中的单一控制机制相比，本发明提出的用于生成调制RF信号的方法可以应用于产生具有高动态范围的各种高效RF发射机。

公开(公告)号：US08169272B2

公开(公告)日：2012-05-01

申请号：US12855328

申请日：2010-08-12

申请人： Jau-Horng Chen ,  Yi-Jan Emery Chen

发明人： Jau-Horng Chen ,  Yi-Jan Emery Chen

IPC分类号： H03C3/00 ,  H03C3/38 ,  H03K7/00 ,  H03K7/10

CPC分类号： H03K7/08

摘要： A multi-phase pulse-modulated polar transmitter and a method of generating a pulse-modulated envelope signal carrying modulated RF signal. Multi-phase pulse modulation technique or similar multi-phase pulse modulation techniques are employed in conjunction with a plurality of power amplifiers to enhance the bandwidth of the transmitter and to reduce out-of-band emissions and noises while easily synchronizing the phase and envelope of the input signal.

摘要翻译： 一种多相脉冲调制极性发射机和一种产生经调制的包络信号的调制RF信号的方法。 多相脉冲调制技术或类似的多相脉冲调制技术与多个功率放大器结合使用，以增强发射机的带宽并减少带外发射和噪声，同时容易地同步相位和包络线 输入信号。

公开(公告)号：US20120002755A1

公开(公告)日：2012-01-05

申请号：US12909001

申请日：2010-10-21

申请人： Jau-Horng Chen ,  Yi-Jan Emery Chen

发明人： Jau-Horng Chen ,  Yi-Jan Emery Chen

IPC分类号： H04L27/12 ,  H03K7/10

CPC分类号： H03K7/10 ,  H03K7/08

摘要： A multi-level pulse modulated polar transmitter and a method of generating multi-level pulse modulated RF signals carrying phase information, in conjunction with a plurality of power amplifiers, so as to enhance the bandwidth of the transmitter and to reduce spurious emission and noise while synchronizing the phase and envelope of the input signals.

摘要翻译： 一种多电平脉冲调制极性发射机和一种与多个功率放大器一起产生携带相位信息的多电平脉冲调制RF信号的方法，以便增强发射机的带宽并减少杂散发射和噪声，同时 同步输入信号的相位和包络。

公开(公告)号：US20110254636A1

公开(公告)日：2011-10-20

申请号：US12855328

申请日：2010-08-12

申请人： Jau-Horng Chen ,  Yi- Jan Emery Chen

发明人： Jau-Horng Chen ,  Yi- Jan Emery Chen

IPC分类号： H03K7/00

CPC分类号： H03K7/08

摘要： A multi-phase pulse-modulated polar transmitter and a method of generating a pulse-modulated envelope signal carrying modulated RF signal. Multi-phase pulse modulation technique or similar multi-phase pulse modulation techniques are employed in conjunction with a plurality of power amplifiers to enhance the bandwidth of the transmitter and to reduce out-of-band emissions and noises while easily synchronizing the phase and envelope of the input signal.

摘要翻译： 一种多相脉冲调制极性发射机和一种产生经调制的包络信号的调制RF信号的方法。 多相脉冲调制技术或类似的多相脉冲调制技术与多个功率放大器结合使用，以增强发射机的带宽并减少带外发射和噪声，同时容易地同步相位和包络线 输入信号。

公开(公告)号：US20110201287A1

公开(公告)日：2011-08-18

申请号：US13120519

申请日：2008-09-24

申请人： Patrick Pratt ,  Jau Horng Chen ,  George Norris

发明人： Patrick Pratt ,  Jau Horng Chen ,  George Norris

IPC分类号： H01Q11/12

CPC分类号： H03F1/3247

摘要： A wireless communication unit comprises a transmitter having a forward path comprising a power amplifier, PA, and a feedback path arranged to feed back a portion of a signal output from the PA to a point in the forward path prior to the PA. The forward path and feedback path form a constant gain tracking (CGT) loop. The feedback path comprises an adaptive predistortion logic module located outside of the CGT loop and arranged to form an APD loop with the forward path and feedback path. The CGT loop comprises a controller logic module arranged to determine a gain offset of a signal routed through the forward path and feedback path and in response thereto set a drive level of the PA.

摘要翻译： 无线通信单元包括具有正向路径的发射机，该前向路径包括功率放大器PA和反馈路径，所述反馈路径被布置为将从PA输出的信号的一部分反馈到PA之前的前向路径中的一个点。 正向路径和反馈路径形成恒定增益跟踪（CGT）循环。 反馈路径包括位于CGT环路外部的自适应预失真逻辑模块，并被布置成与前向路径和反馈路径形成APD环路。 CGT循环包括控制器逻辑模块，其被布置为确定通过前向路径和反馈路径路由的信号的增益偏移，并响应于此设置PA的驱动电平。

公开(公告)号：US20080298500A1

公开(公告)日：2008-12-04

申请号：US11755960

申请日：2007-05-31

申请人： George B. Norris ,  Joseph Staudinger ,  Jau-Horng Chen

发明人： George B. Norris ,  Joseph Staudinger ,  Jau-Horng Chen

IPC分类号： H04L25/49

CPC分类号： H03F1/3247 ,  H03F2201/3233

摘要： In an embodiment, a digital pre-distortion apparatus processes an input signal to produce a pre-distorted signal, and processes the pre-distorted signal to produce a feedback signal. The apparatus also rotates an adjustment gain by a gain rotation angle to produce a rotated adjustment gain, where the gain rotation angle is based on a phase difference between the input signal and the feedback signal. The apparatus also applies the rotated adjustment gain to the feedback signal, which may result in rotation of the feedback signal into a target phase region.

摘要翻译： 在一个实施例中，数字预失真设备处理输入信号以产生预失真信号，并处理预失真信号以产生反馈信号。 该装置还使调节增益旋转增益旋转角度以产生旋转的调节增益，其中增益旋转角度基于输入信号和反馈信号之间的相位差。 该装置还将旋转的调节增益应用于反馈信号，这可能导致反馈信号转动到目标相位区域。