Patent ID: 7889632

Claim:
A radio communication system, comprising: a communication unit configured to carry out communications between radio stations by modulating a plurality of signal sequences to be transmitted and received into an initial assignment of a plurality of frequency channels assigned, respectively, to each of a plurality of cells; a channel mapping means for rearranging, for each of the plurality of cells, the initial assignment of the plurality of frequency channels into newly assigned continuous frequency channels; a bandwidth control means for controlling a bandwidth of said newly assigned continuous frequency channels according to a propagation state of said newly assigned continuous frequency channels; and means for orthogonally multiplexing the newly assigned continuous frequency channels, wherein said bandwidth control means converts information data sequences into a plurality of channels, and transmits and receives a signal sequence of each of these plurality of channels by a plurality of orthogonalized sub-carrier signals, and includes, a fading estimation means for estimating a propagation route of said sub-carrier signals, and a sub-carrier bandwidth control means for controlling a bandwidth of said sub-carrier signals to be transmitted and received, according to a fading information estimated by said fading estimation means.