METHOD FOR IMPROVING TRANSCEIVER PERFORMANCE OF RADIO COMMUNICATION SYSTEM, IN WHICH I/Q IMBALANCE IS ESTIMATED AND COMPENSATED

摘要

PURPOSE: A method for improving transceiver performance of a radio communication system is provided to estimate signal unbalance generated in a transmitter and a receiver and thus to compensate it. CONSTITUTION: A transmitter(201) includes the first transmission path and the second transmission path outputting an in-phase transmission signal and an orthogonal phase transmission signal respectively by processing a digital signal with the first carrier of a carrier frequency and the second carrier having a 90 degree phase difference from the first carrier. The transmitter transmits an analog signal by adding the in-phase transmission signal and the orthogonal phase transmission signal. A receiver(249) includes the first receiving path and the second receiving path outputting an in-phase receiving signal and an orthogonal phase receiving signal respectively by processing the analog signal with the first carrier and the second carrier.