Lg Electronics Inc.

Harri Riihihuhta

Sami Vilhonen

Samu Laaja

Jari Heikkinen

A mobile terminal performing harmonic rejection includes a plurality of baseband units generating a baseband signal; a plurality of up-converters converting the baseband signal into a radio frequency (RF) signal; and a controller controlling phases of a plurality of signals applied to the plurality of baseband units and the plurality of up-converters. Meanwhile, the controller may perform at least one of 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 to provide a transmitting part having improved harmonic distortion characteristics and the mobile terminal having the transmitting part.

Method of controlling harmonics and mobile terminal performing thereof

A mobile terminal according to the present invention includes a main transmitter to amplify and transmit a first signal of a first frequency band through a first path and a second path, and an auxiliary transmitter to amplify and transmit a second signal of a second frequency band through a third path. The mobile terminal further includes a controller to control the amplified first signal and the amplified second signal to be combined with each other when the distortion signal is to occur in frequency bands adjacent to the first frequency band due to the amplified first signal, thereby providing a radio frequency (RF) front end and a mobile terminal with improved non-linearity.

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Turku, Finland

Harri Riihihuhta