LO LEAKAGE SIGNAL CORRECTION DEVICE IN A MOBILE COMMUNICATION SYSTEM WHICH VARIES A DC OFFSET CORRECTION VALUE FOR THE ATTENUATION OF A LO LEAKAGE SIGNAL ACCORDING TO THE POWER CONTROL VALUE OF A TERMINAL

摘要

PURPOSE: A device and a method for correcting a LO leakage signal in a mobile communication system are provided to vary a DC offset correction value about a power control value of a terminal, thereby attenuating the LO leakage signal effectively.;CONSTITUTION: A gain control engine(265) receives a power control command from a BS. According to the power control command, the gain control engine generates a gain setting bit for transmission power control. A DC(Direct Current) offset compensator decodes the gain setting bit of the gain control engine. The DC offset correction unit extracts a gain control value related to a LO(local Oscillator) leakage. The DC offset correction unit corrects a LO leakage signal by the offset compensation value corresponding to the gain control value.;COPYRIGHT KIPO 2011