Invention Grant
- Patent Title: Predistortion methods and apparatus for transmitter linearization in a communication transceiver
- Patent Title (中): 用于通信收发器中发射机线性化的预失真方法和装置
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Application No.: US12260832Application Date: 2008-10-29
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Publication No.: US08170507B2Publication Date: 2012-05-01
- Inventor: Yongtao Wang , Khurram Waheed , Sameh S. Rezeq , Jaimin Mehta , Prasad Srinivasan , Khurram Muhammad
- Applicant: Yongtao Wang , Khurram Waheed , Sameh S. Rezeq , Jaimin Mehta , Prasad Srinivasan , Khurram Muhammad
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Ronald O. Neerings; Wade James Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H04B1/04
- IPC: H04B1/04

Abstract:
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.
Public/Granted literature
- US20100105338A1 PREDISTORTION METHODS AND APPARATUS FOR TRANSMITTER LINEARIZATION IN A COMMUNICATION TRANSCEIVER Public/Granted day:2010-04-29
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