公开(公告)号：US08170507B2

公开(公告)日：2012-05-01

申请号：US12260832

申请日：2008-10-29

申请人： Yongtao Wang ,  Khurram Waheed ,  Sameh S. Rezeq ,  Jaimin Mehta ,  Prasad Srinivasan ,  Khurram Muhammad

发明人： Yongtao Wang ,  Khurram Waheed ,  Sameh S. Rezeq ,  Jaimin Mehta ,  Prasad Srinivasan ,  Khurram Muhammad

IPC分类号： H04B1/04

CPC分类号： H03F3/24 ,  H03F1/3241 ,  H03F3/72 ,  H04B2001/0425

摘要： Predistortion methods and apparatus for transmitter linearization in a communication transceiver are disclosed. An example apparatus to linearize a digitally controlled pre-power amplifier included in a transmitter of a communication transceiver disclosed herein comprises a predistorter to predistort an input signal to be processed by the digitally controlled pre-power amplifier, a coupling path within the communication transceiver to couple an output of the digitally controlled pre-power amplifier to an input of a receiver included in the communication transceiver without enabling an output power amplifier stage of a multi-stage power amplifier coupled to an output of the digitally controlled pre-power amplifier, wherein no additional hardware components are required to implement the coupling path within the communication transceiver, and a predistortion evaluator comprising a predistortion calibrator and a predistortion compensator to process data demodulated by the receiver to generate and update predistortion values for use by the predistorter.

摘要翻译： 公开了用于通信收发器中的发射机线性化的预失真方法和装置。 线性化包括在本文公开的通信收发器的发射机中的数字控制的预功率放大器的示例性装置包括预失真器，用于预失真由数字控制的预功率放大器处理的输入信号，通信收发器内的耦合路径 将数字控制的预功率放大器的输出耦合到通信收发器中包括的接收器的输入，而不使能耦合到数字控制的预功率放大器的输出的多级功率放大器的输出功率放大器级，其中 不需要额外的硬件组件来实现通信收发信机内的耦合路径，以及预失真评估器，包括预失真校准器和预失真补偿器，用于处理由接收机解调的数据，以生成和更新预失真值供预失真器使用。

公开(公告)号：US20100105338A1

公开(公告)日：2010-04-29

申请号：US12260832

申请日：2008-10-29

申请人： Yongtao Wang ,  Khurram Waheed ,  Sameh S. Rezeq ,  Jaimin Mehta ,  Prasad Srinivasan ,  Khurram Muhammad

发明人： Yongtao Wang ,  Khurram Waheed ,  Sameh S. Rezeq ,  Jaimin Mehta ,  Prasad Srinivasan ,  Khurram Muhammad

IPC分类号： H04B1/62 ,  H03F1/32 ,  H04B1/40

CPC分类号： H03F3/24 ,  H03F1/3241 ,  H03F3/72 ,  H04B2001/0425

摘要： Predistortion methods and apparatus for transmitter linearization in a communication transceiver are disclosed. An example apparatus to linearize a digitally controlled pre-power amplifier included in a transmitter of a communication transceiver disclosed herein comprises a predistorter to predistort an input signal to be processed by the digitally controlled pre-power amplifier, a coupling path within the communication transceiver to couple an output of the digitally controlled pre-power amplifier to an input of a receiver included in the communication transceiver without enabling an output power amplifier stage of a multi-stage power amplifier coupled to an output of the digitally controlled pre-power amplifier, wherein no additional hardware components are required to implement the coupling path within the communication transceiver, and a predistortion evaluator comprising a predistortion calibrator and a predistortion compensator to process data demodulated by the receiver to generate and update predistortion values for use by the predistorter.

摘要翻译： 公开了用于通信收发器中的发射机线性化的预失真方法和装置。 线性化包括在本文公开的通信收发器的发射机中的数字控制的预功率放大器的示例性装置包括预失真器，用于预失真由数字控制的预功率放大器处理的输入信号，通信收发器内的耦合路径 将数字控制的预功率放大器的输出耦合到通信收发器中包括的接收器的输入，而不使能耦合到数字控制的预功率放大器的输出的多级功率放大器的输出功率放大器级，其中 不需要额外的硬件组件来实现通信收发信机内的耦合路径，以及预失真评估器，包括预失真校准器和预失真补偿器，用于处理由接收机解调的数据，以生成和更新预失真值供预失真器使用。