Patent ID: 7415085
Filing Date: 2008-08-19
Classification: H04B,H04L

Abstract:
1. An OFDM receiver which receives an OFDM signal transmitted from an OFDM transmitter by using a sub-carrier, the OFDM receiver comprising: a channel estimator configured to obtain a channel estimated value of each of a plurality of multi-paths based on the OFDM signal received through the plurality of multi-paths; a transmission signal estimated value calculator configured to calculate a transmission signal estimated value for each of the plurality of multi-paths as estimated values of the OFDM signal; and an inter-carrier interference compensator configured to set an FFT window indicating an interval which is a target for which FFT processing is executed so as to contain a signal component of previous and subsequent symbols different from a target symbol based on the transmission signal estimated value and the channel estimated value of each of the plurality of multi-paths, and to compensate for inter-carrier interference in the OFDM signal in the time domain based on signal components corresponding to all sub-carriers of the each of the plurality of multi-paths in the FFT window.