APPARATUS AND METHOD FOR CALIBRATION IN WIRELESS COMUNICATION SYSTEM

摘要

PURPOSE: A calibration apparatus in a wireless communication system and method thereof are provided to reduce errors and setup time related to calibration methods according to environment change by using training signals. CONSTITUTION: A modem(100) selects a calibration method which uses one tone signal or two tones signal. When the calibration method which uses the two tones signal is selected, the modem selects I channel or Q channel. The modem provides training signals to a transmission and reception unit(150) through the selected channel. The transmission and reception unit increases the frequency of the training signal through a transmission path. The reception path receives feedbacks related to the increased frequency of the training signal from a duplexer(170).