Transmitting method and transmitting/receiving apparatus subchannel signal and method for allocating frequency resource in mobile communication system

In the present invention discloses the efficient allocation of the frequency resources. In particular, the band AMC: by allocating (Band AMC Band Adaptive Modulation and Coding) subchannels on a symbol basis while still minimizing the size of the buffer it is possible to improve the data processing speed. OFDMA, symbols, Band AMC, Allocation