Patent ID: 7551689

Claim:
A power management system for powering an output power amplifier block in a wireless communication device, the power management system comprising: an average power and gain control block configured to provide a single gain control signal to control gain in the output power amplifier block, the single gain control signal being based on at least one of a power control instruction signal and a received signal strength indicator signal; an environmental sensor unit configured to provide at least one environmental information signal related to the wireless communication device; a power supply level adjustment generator configured to provide a power supply level adjustment signal based on a baseband outgoing data stream to be transmitted by the wireless communication device and the at least one environmental information signal; a summer configured to sum the single gain control signal and an altered version of the power supply level adjustment signal to generate a first power control signal; a clipper configured to receive the first power control signal and generate a second power control signal; and a switch converter configured to receive the second power control signal and generate the single variable power supply signal; wherein the power management system is configured to provide a single variable power supply signal to the output power amplifier block, the single variable power supply signal being based on information related to the single gain control signal, the power supply level adjustment signal and the at least one environmental information signal.