METHOD AND APPLIANCE TO IMPROVE THE EFFICIENCY OF POWER AMPLIFICATION IN WIRELESS COMMUNICATION SYSTEMS WITH HIGH RELATIONSHIPS BETWEEN THE VALUES OF PEAK POWER AND AVERAGE POWER.

摘要

A power management system (18 '' '') to provide a variable power signal (54) to an output power amplification block (24) in a wireless communication device (10), the power management system power (18 '' '') comprises: a medium power and gain control block (36) for emitting a gain control signal (44) in response to a power control instruction signal (48), or a signal indicating the intensity of the received signal (50) or both, and to provide the gain control signal (44) to the output power amplification block (24); a unit containing an environmental sensor (93) to provide one or more environmental information signals (96, 100, 104); a power level adjustment generator (38 '') connected to the environmental sensor unit (93) to produce an altered version of the power level adjustment signal (52 '') in response to an indication of parameters of data from a stream of baseband output data (76) to be transmitted by the wireless communication device (10) and one or more environmental information signals (96, 100, 104); and, a power supply (42) connected to the medium power and gain control block (36) and the power level adjustment generator (38 ''); The power supply (42) provides the variable power signal (54) to the output power amplification block (24) by emitting a first power control signal (90 '') based on the gain control signal (44). '') and in the altered version of the power level adjustment signal (52 ''), trimming the first power control signal (90 '') to produce a second power control signal (90 '' ' ') and generating the variable power signal (54) based on the second power control signal.