Patent ID: 7848458
Filing Date: 2010-12-07
Classification: H04B,H04L

Abstract:
1. A communication apparatus employed in a system that uses a plurality of discontinuous frequency bands, the communication apparatus comprising: a filtering unit including a plurality of band pass filters associated with signals having the respective frequency bands; a controlling unit that controls each unit that transmits/receives signals having the respective frequency bands; a down-converting unit that down-converts a filtered signal into a baseband signal while switching frequencies under control of the controlling unit; a demodulating unit that performs predetermined reception processing under control of the controller; and a modulating unit that performs predetermined transmission processing under control of the controller, wherein a part of hardware is shared in communication in the plurality of frequency bands with respect to processing of the baseband signal; and the demodulating unit includes a single fast Fourier transform (FFT) unit and the modulating unit includes a single inverse FFT unit, each adapted to a widest frequency band of the plurality of frequency bands.