Method of controlling harmonics and mobile terminal performing thereof

A method of controlling harmonics of a mobile terminal, the method comprising:

• a phase determination process of determining phase of a plurality of signals applied to a plurality of baseband units and a plurality of up-converters;
• a baseband signal output process of outputting baseband signals on the basis of the determined phases;
• a local oscillator (LO) signal output process of outputting LO signals on the basis of the determined phases;
• and
• a radio frequency (RF) signal generation process of generating RF signals using the baseband signals and the LO signals,
• wherein, in the phase determination process, phase values of different types are determined according to a harmonic rejection mode, a first non-harmonic rejection mode for improving a signal-to-noise ratio (SNR), and a second non-harmonic rejection mode for improving linearity,
• wherein the plurality of baseband units include first to fourth baseband units, and the plurality of up-converters include first to fourth up-converters, and
• wherein in the baseband signal output process, in the harmonic rejection mode, first to fourth baseband signals having phases of 45, 0, 90, −45 are controlled to be applied to the first to fourth baseband units, respectively, and
• wherein in the LO signal output process, first to fourth LO signals having phases of 45, 0, 90, −45 are controlled to be applied to the first to fourth up-converters, respectively.