Patent ID: 8320855

Claim:
A power amplifier module comprises: a first power amplifier having amplification set for optimal efficiency in accordance with most probable transmit power level settings within a transmit power level range; a second power amplifier having amplification set for optimal efficiency in accordance with the most probable transmit power level settings within the transmit power level range; a controlling module coupled to: enable one of the first and second power amplifiers to amplify an outbound radio frequency (RF) signal in accordance with a power setting when the power setting is not within the most probable transmit power level settings; enable at least one of the first and second power amplifiers to amplify the outbound RF signal in accordance with the power setting when the power setting is within the most probable transmit power level settings; determine a first bias adjust indication based on the power setting and one range of the most probable transmit power level settings; determine a second bias adjust indication based on the power setting and the one range of the most probable transmit power level settings; provide the first bias adjust indication to the first power amplifier, wherein the first power amplifier adjusts biasing, in accordance with the first bias adjust indication, to maintain the amplification for optimal efficiency; and provide the second bias adjust indication to the second power amplifier, wherein the second power amplifier adjusts biasing, in accordance with the second bias adjust indication, to maintain the amplification for optimal efficiency.