| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve a data transmission rate by multiplexing and transmitting a plurality of modulation signals at a transmission apparatus, and demultiplexing and demodulating the transmitted multiplexed modulation signals at a reception apparatus. <P>SOLUTION: In a transmission method for transmitting modulation signals of a plurality of channels to the same frequency band from a plurality of antennas, at the time when a demodulation symbol 101 is inserted in a channel, in another channel symbol 109, the same phase and quadrature signals in the in-phase-quadrature plane are made to be zero signals. Thus, a plurality of modulation signals are multiplexed and transmitted and the transmitted multiplexed modulation signals are demultiplexed and demodulated at a reception apparatus, thereby improving the data transmission rate. <P>COPYRIGHT: (C)2007,JPO&INPIT |
