Patent ID: 8290085
Filing Date: 2012-10-16
Classification: H04W

Abstract:
1. A power management system for an amplification block of a wireless device transmitter comprising a power amplifier for generating an amplified transmission signal, the power management system comprising: an average power level block configured to provide an average desired transmit power signal for the amplified transmission signal; a power supply module coupled to the average power level block and configured to generate a variable power supply signal based on the average desired transmit power signal combined with a power supply level adjustment signal, the variable power supply signal for supplying power to the power amplifier; an environmental sensor configured to provide at least one environmental information signal representing an operating environment of the power amplifier; and a power supply level adjustment generator coupled to the environmental sensor and the power supply module, the power supply level adjustment generator configured to generate the power supply level adjustment signal based on a data parameter indicator of the amplified transmission signal at baseband and the at least one environmental information signal, and having values at which the power supply module generates the variable power supply signal with minimal headroom above the amplified transmission signal.