Patent ID: 8509328

Claim:
A reception apparatus comprising: acquisition means for acquiring an orthogonal frequency division multiplexing signal composed resultingly of signals transmitted by an orthogonal frequency division multiplexing method from a plurality of transmission apparatuses; correction value calculation means for calculating a correction value for correcting a drift amount of said orthogonal frequency division multiplexing signal using a phase of either a first pilot signal or a second pilot signal extracted from the acquired orthogonal frequency division multiplexing signal, said first pilot signal being obtained from pilot signals which are in phase with one another coming from said plurality of transmission apparatuses, said second pilot signal being acquired from pilot signals which are out of phase with one another coming from said plurality of transmission apparatuses; and correction means for correcting said drift amount of said orthogonal frequency division multiplexing signal in accordance with the calculated correction value, and wherein, if said plurality of transmission apparatuses have the same transmission channel status, said correction value calculation means calculates said correction value using the phase of said first pilot signal, and wherein, if said plurality of transmission apparatuses are different from one another in terms of transmission channel status, with the phases of the transmission channels of said transmission apparatuses inverted with respect to one another, then said correction value calculation means calculates said correction value using the phase of said second pilot signal.