Patent ID: 9553644
Date: 2017-01-24
CPC Classifications: H04B,H04L

Claim:
1. A reception method comprising: receiving a reception OFDM signal based on a plurality of precoded signals z demodulating the reception OFDM signal in accordance with a transmission scheme of the plurality of precoded signals z performing error-correction decoding on the demodulated signal; and acquiring audio data from the error-correction decoded signal, and externally outputting the audio data, wherein the plurality of precoded signals z the first condition is that x is an integer from 0 to N−1, y is an integer from 0 to N−1, and with respect to all x and all y satisfying x≠y, F[x]≠F[y] holds, the second condition is that x is an integer from 0 to N−1, y is an integer from 0 to N−1, and with respect to all x and all y satisfying x≠y, no real or complex number k holding F[x]=k×F[y] exists, the third condition is that the plurality of precoded signals z where, α is a positive real number, θ λ indicates a phase rotation amount [radian], δ indicates a phase rotation amount [radian], and j is an imaginary unit.