| 摘要 |
A communication apparatus according to the present invention is a reception communication apparatus that uses a plurality of frequency channels to perform multi-carrier transmission, and includes a frequency channel group generating unit (2) that performs control for hierarchically grouping the plurality of frequency channels; a propagation path information estimating unit (1) that estimates propagation path information of the plurality of frequency channels; a unit (selector (3), average value calculating unit (4), and subtracting unit (5)) hierarchically grouping the plurality of frequency channels, calculating an average value of the propagation path information for each group in a highest layer with the use of the propagation path information estimate values, and calculating the propagation path information estimate values used in each layer based on an average value of a layer immediately above to calculate an average value of the propagation path information for each group in other layers with the use of the propagation path information estimate values of the each layer; and a feedback information generating unit (6) that feeds back an average value acquired in each group as feedback information to a transmission communication apparatus. |
