Patent ID: 8260228

Claim:
A reception method comprising: receiving a plurality of multiplexed modulated signals, at least one modulated signal among the plurality of multiplexed modulated signals using a transmission frame which includes a frequency offset estimation signal for estimating frequency offset, a channel fluctuation estimation signal for estimating channel fluctuation, and a first gain control signal and a second gain control signal for performing gain control, and, in the transmission frame of the at least one modulated signal, the first gain control signal being arranged ahead of the frequency offset estimation signal and the second gain control signal being arranged subsequent to the frequency offset estimation signal, and ahead of the channel fluctuation estimation signal; performing first gain control of the at least one modulated signal using the first gain control signal; estimating frequency offset of the modulated signal subjected to the first gain control using the frequency offset estimation signal and adjusting the estimated frequency offset of the modulated signal; performing second gain control of the plurality of modulated signals including the modulated signal having the frequency offset adjusted, using the second gain control signal; estimating channel fluctuation of the plurality of modulated signals subjected to the second gain control using the channel fluctuation estimation signal, and separating the plurality of modulated signals using the estimated channel fluctuation; and demodulating the separated plurality of modulated signals.