IQ imbalance correction method in a wireless communication device including a quadrature modulation/demodulation function

An IQ imbalance correction method includes transmitting a plurality of pairs of RF training signals (TRS) in installments by pairing RF training signals symmetric with respect to a center frequency (Fc) on a frequency axis; setting a reception local frequency to change to a frequency that is suitable to receive, via an internal path, each of the plurality of pairs of RF training signals transmitted in installments, and suitable to convert the each of the plurality of pairs of RF training signals into IF training signals; and performing quadrature demodulation on the IF training signals, respectively, in a digital circuit area to generate BB training signals.