Patent ID: 9379742
Filing Date: 2016-06-28
CPC Classification: H03F,H04B,H04L

Claim Text:
1. A radio frequency (RF) transmitter comprising at least one digital signal processing module, the at least one digital signal processing module being arranged to: receive a complex digital input signal; successively apply pre-distortion to the received complex digital input signal with a progressively finer granularity; simultaneously progressively increase a sampling rate of the received complex digital input signal; identify a matching predefined vector within pre-distortion profile information for the received complex digital input signal, and map the identified predefined vector to in-phase and quadrature digital control words that serve as an indication of a sub-set of the pre-distortion profile information for the digital power amplifier component to which the received complex digital input signal relates; and output the in-phase and quadrature digital control words for controlling at least one digital power amplifier component to generate an RF signal representative of the received complex digital input signal.