Patent ID: 9385762
Filing Date: 2016-07-05
CPC Classification: H03F,H04B

Claim Text:
1. A concurrent multi-band transmitter, comprising: a digital predistortion subsystem comprising a plurality of digital predistorters configured to process a plurality of digital input signals for a plurality of frequency bands of a concurrent multi-band signal to provide a plurality of predistorted digital input signals each being for a different one of the plurality of frequency bands of the concurrent multi-band signal and one or more intermodulation distortion compensation signals each being for a different one of one or more intermodulation distortion frequency bands; circuitry configured to process the plurality of predistorted digital input signals and the one or more intermodulation distortion compensation signals to provide a predistorted concurrent multi-band signal; power amplifier circuitry configured to amplify the predistorted concurrent multi-band signal to provide the concurrent multi-band signal; and an adaptation subsystem configured to adaptively configure the plurality of digital predistorters based on a memory polynomial based digital baseband model of the plurality of digital predistorters.