GAIN CONTROL METHOD AND RADIO REMOTE UNIT

摘要

A gain control method. The method comprises: an automatic gain control module detecting the instantaneous power of an analog-to-digital converter (ADC) signal within a first period of time of a current time slot of a current frame, determining whether to perform attenuation on the gain of an intermediate frequency gain module (VGA) and/or a radio frequency gain module (ATT) according to the detection result, and if the attenuation is to be performed, configuring the attenuated gain to the module that requires attenuation; and the automatic gain control module detecting the average power of the ADC signal within a second period of time of the current time slot of the current frame, and adjusting the gain of the VGA and/or the ATT according to the detection result and a preset power threshold, and configuring the adjusted gain to the module that requires adjustment in the corresponding time slot of a next frame. The gain control method and radio remote unit of the present invention effectively improve the signal-to-noise ratio of an uplink signal.