| 摘要 |
PROBLEM TO BE SOLVED: To improve utilization efficiency of a frequency, in a communication system for performing communication by a multicarrier transmission system between a plurality of communication apparatuses (10 and 20).SOLUTION: By dividing all frequency bands allocated to a communication system into a plurality of frequency bands (band 1 to band 4, for instance) of fixed band width respectively and transmitting usage frequency band information using a specified band (band 1, for instance) among the divided bands, allocation of remaining bands (band 2 to band 4) to be used between communication apparatuses is determined. In this case, the specified band is a main band for transmitting data channel information in addition to control channel information including the usage frequency band information, and an extension band for transmitting the additional data channel information can be added to the main band. Further, for the main band and the extension band, the frequency band to be used can be changed or the number of the frequency band can be increased or decreased with the passage of time. |
