Method and apparatus for predicting signal characteristics for a nonlinear power amplifier

Aspects disclosed herein relate to predicting one or more signal characteristics to improve efficiency for a power amplifier (150). A wireless communications device (100) may be include a power amplifier (150) and a processor that is associated with a signal prediction module (118). In an aspect, the processor may be a modem (102), a RF chip, etc. In one example, the wireless communications device (100) may be configured to buffer one or more values associated with an input signal (110). The signal prediction module (118) may be configured to predict a system response to at least a portion of the one or more buffered values, and generate a switcher control signal (144) based on the system response. The signal prediction module (118) may also generate a predicted supply voltage (120) from the values associated with the input signal (110).