| 摘要 |
<p>In a case where communications are performed in such a manner that identical frequencies, which are at least some of a plurality of frequencies, are used, at the same time, to cause signals to overlap each other, retransmissions can be efficiently performed. A wireless communication system permits the coincidences of some or all of the frequencies that are used for a plurality of first communication apparatuses to transmit radio signals to a second communication apparatus. In the wireless communication system, when the first communication apparatuses perform the signal retransmissions to the second communication apparatus, only partial spectra (6, 8), which are respective parts of the initially-transmitted signals (1, 2), are transmitted to the second communication apparatus. The partial spectra (6, 8) correspond to a spectrum (4) located at the frequencies that were coincident with each other when the first communication apparatuses transmitted the initially-transmitted signals.</p> |
