Enhanced predistortion method and apparatus

A method, comprising:

• determining a power level of a predistorted input signal;
• determining a temperature level of an amplifier used in a transmitter to amplify the predistorted input signal;
• comparing the determined power and temperature levels to at least one power level threshold and at least one temperature level threshold respectively;
• and
• predistorting an input signal based on the comparison to generate the predistorted input signal.

A method, comprising:

• accessing a memory to retrieve coefficients, from a coefficient lookup table, for predistorting a signal based on a current operating state of a transmitter;
• predistorting the signal of the transmitter according to the current operating state of the transmitter;
• wherein
• the coefficient lookup table is stored in a memory, that is indexed according to three power ranges, a first of the three power ranges including one defined temperature level, a second of the three power ranges including two defined temperature levels, and a third of the three power ranges including four defined temperature levels.