A system is provided for correcting an output power of a power amplifier
in a transmit chain of a mobile terminal. In one embodiment, the system
includes output power correction circuitry that corrects the output power
of the power amplifier during ramp-up for a transmit burst. The output
power of the power amplifier is controlled based on a power control
signal, which is provided by combining an amplitude component of a
modulated signal and a corrected ramping signal provided by the output
power correction circuitry. In general, a power amplifier ramp generator
provides a ramping signal. The ramping signal is converted to a desired
output power signal, which is subtracted from a detected output power
signal to provide an error signal. The error signal is integrated to
provide an adjustment signal, which is combined with an ideal ramping
signal to provide the corrected ramping signal.