Radio communication device and method for performing a multicarrier operation using a plurality of carriers

摘要

To improve the frequency diversity effect by preventing the related bits in the encoded data from being biased to the specified carrier in the case of performing the multicarrier operation. A modulated symbol sequence is segmented in a data segmentation section (116), and the segmented modulated symbol blocks are mapped on a plurality of carriers in a segment mapping section (120). The data segmentation section (116) groups each of K parts in the modulated symbol sequence into the same number of N groups, cyclically shifts the N groups for the respective parts of any (K−1) parts with shift amounts which differ among the parts, and substitutes the cyclically-shifted groups of the plurality of parts in the modulated symbol sequence with one another among the parts to segment the groups into a plurality of blocks.

主权项

1. A radio communication device for performing a multicarrier operation using a plurality of carriers, the radio communication device comprising:
a modulator that is configured to generate a modulated symbol sequence in accordance with a predetermined modulation scheme from an encoded data sequence to be transmitted; a data segmentation section that is configured to segment the modulated symbol sequence; and a segment mapping section that is configured to map segmented modulated symbol blocks on the plurality of carriers, wherein the data segmentation section includes: a symbol grouping section that is configured to group each part of a plurality of parts in the modulated symbol sequence which can be divided on the basis of subblocks in the encoded data sequence, into a same number of groups; a group cyclic shifter that is configured to cyclically shift a plurality of groups for each part of the plurality of parts with shift amounts which differ among the plurality of parts; and a group substitution and segmentation section which is configured to substitute the cyclically-shifted groups for each part of the plurality of parts in the modulated symbol sequence with one another among the plurality of parts, to segment the groups into a plurality of blocks.