METHOD AND APPARATUS FOR PROCESSING SIGNALS AT TIME DIVISION DUPLEX TRANSCEIVER

摘要

A method and an apparatus for processing signals at a time division duplex transceiver are provided to reduce a size of a semiconductor die necessary for manufacturing an RF chip, thereby largely reducing production costs of the TDD transceiver. A digital baseband chip(190) converts a parallel digital signal for controlling a gain of a variable gain amplifier of an RF(Radio Frequency) chip(100) into a serial digital signal. The digital baseband chip transmits the serial digital signal to the RF chip through a single PIN. The RF chip converts the serial digital signal into the parallel digital signal. The RF chip controls the gain of the variable gain amplifier based on the parallel digital signal.