Patent ID: 8483631

Claim:
A method of processing a waveform for input to an amplifier, the method comprising: receiving carrier configuration information associated with the waveform at a model reference knowledge base, the carrier configuration information received independent from an output of the amplifier and comprising waveform type data that is indicative of a modulation configuration of the waveform; determining a chain model that includes adjusting a predistortion factor for the waveform based on the carrier configuration information received independent from the output of the amplifier, the determining of the chain model performed at the model reference knowledge base; determining a change in the modulation configuration of the waveform; updating the chain model and the predistortion factor in response to the change in the modulation configuration of the waveform, wherein the chain model and the predistortion factor are updated in part in an open loop configuration using previous modulation data associated with the change in the modulation configuration, the previous modulation data stored at the model reference knowledge base; receiving, at a predistortion module, an output feedback signal from the output of the amplifier; receiving, at the model reference knowledge base, a feedback transmission chain model from the predistortion module, the feedback transmission chain model based on the output feedback signal; optimizing, in part in a closed loop configuration, the updated chain model and the updated predistortion factor at the model reference knowledge base using the feedback transmission chain model; and predistorting the waveform for input to the amplifier based on the optimized chain model, the optimized predistortion factor, and target output power.