Texas Instruments Corporation

Raul Blazquez

Zigang Yang

Xiaohan Chen

Hardik Prakash Gandhi

Lars Jorgensen

Hongzhi Zhao

Jie Yang

A digital pre-distortion component includes: a first capturing component that captures a first sample set of data; a first generating component that generates a first change matrix associated with a portion of the first sample set of data; a first memory component that stores the first change matrix; a second capturing component that captures a second sample set of data; a second generating component that generates a second change matrix associated with a portion of the second sample set of data; a second memory component that stores the second change matrix; a third capturing component that captures a third sample set of data; a third generating component that generates a third change matrix associated with a portion of the third sample set of data; a comparing component that compares the third change matrix with the first change matrix to obtain a first comparison, and compares the third change matrix with the second change matrix to obtain a second comparison; and an adapting component that adapts the digital pre-distortion component with the third sample set of data based on one of the first comparison and the second comparison.

Capture selection for digital pre-distortion adaptation and capture concatenation for frequency hopping pre-distortion adaptation

A method of predistorting an input signal () for an amplifier is disclosed (FIG.). The method includes predistorting the input signal with a first set of parameters (FDPD) and a second set of parameters (CDPD) at a first time (). The first set of parameters is updated at a second time (). The second set of parameters is updated separately from the first set of parameters at a third time ().

Dual loop digital predistortion for power amplifiers

Transmitter first/second digital predistortion and first/second adaption circuitry with feedback

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Dallas, TX, United States of America

Raul Blazquez