| 摘要 |
An OFDM signal generation method of a transmission system comprising: generating first and second pre-coded signals zl', z2' corresponding to signals 5 obtained by applying precoding by a fixed matrix F to first and second modulated signal sl, s2 respectively, wherein F is expressed as: 1 j e 0 a jec ea2+1axxjoj'j la 2 ±1 La x ejo ejo where a represents 0; inserting one or more pilots to each of zl', z2' to obtain first and second pilot-inserted signals zl", z2", respectively; phase-changing, while regularly varying a scheme of phase 10 change for each of a plurality of slots, at least one of zl" and z2" to obtain first and second transmission signals zl, z2, wherein each of the generating, the inserting, and the phase-changing is performed by at least one of the first transmitter and the second transmitter; and converting, by first and second transmitters of the transmission system, zI and Z2 to first and second OFDM 15 signals respectfully to be transmitted from first and second antennae respectfully at a first period at a first frequency. 8650589_1 (GHMatters) P92153.AU 0 h0 0C(U C$0) 0 oco 0> LI) C) < ho CU |
