Patent ID: 6771941
Filing Date: 2004-08-03
Classification: H04W

Abstract:
A transmission power control apparatus of a base station of a mobile communication network comprising:an up-converter for converting a received intermediate frequency (IF) signal to a radio frequency (RF) signal and outputting it; a high power amplifier for amplifying the power of the signal outputted from the up-converter; a coupling unit for receiving the signal from the high power amplifier, extracting only a signal of a necessary frequency band and outputting the extracted signal to an antenna; an attenuator for receiving the signal from the coupling unit, controlling the gain of the signal and outputting it to the up-converter; a comparing unit for comparing the gain control signal applied from the up-converter and the gain control signal inputted from an external source and controlling the attenuator; a controlling unit for providing the gain control signal inputted from the external source to the comparing unit; and an automatic gain controller for generating a gain control signal, control a signal gain of the up-converter and providing the gain control signal to the comparing unit.