Patent ID: 7953167
Filing Date: 2011-05-31
Classification: H04L,H04W

Abstract:
1. A communication method for exchange of information between communication apparatuses by a multicarrier transmission mode using a plurality of subcarriers, the communication method comprising: in a case where usage of only a part of divided frequency bands is allowed at present among a plurality of divided frequency bands formed by dividing an overall frequency band for exchange of information between the communication apparatuses, operating the part of divided frequency bands allowed to be used at present by further dividing the part into one or more frequency bands; dividing each of the remaining said divided frequency bands restricted from usage at present into one or more frequency bands, wherein a divided frequency band is set as a main band in a frequency band assigned to the communication apparatuses, and the main band also transmits data information; and when the restriction thereof is lifted, operating each of said plurality of divided frequency bands formed by dividing said overall frequency band, but not used at present, by the same operation as dividing the divided frequency band already allowed for use into one or more frequency bands.