Communication apparatus, communication system, and communication method

DC CAFC
  • US 7,848,439 B2
  • Filed: 11/18/2005
  • Issued: 12/07/2010
  • Est. Priority Date: 11/19/2004
  • Status: Active Grant
First Claim
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1. A communication apparatus comprising:

  • a channel estimating section that carries out a channel estimation per subband;

    a parameter deciding section that decides modulation parameters and coding parameters per subband group comprised of a plurality of the subbands, based on a result of the channel estimation per subband;

    a parameter information transmission section that transmits, to a communicating party, parameter information indicating the modulation parameters and the coding parameters decided at the parameter deciding section;

    a receiving section that receives a signal containing data modulated and encoded on a per subband group basis at the communicating party using the modulation parameters and the coding parameters of the parameter information transmitted at the parameter information transmission section;

    a data obtaining section that demodulates and decodes the received signal received at the receiving section on a per subband group basis using the modulation parameters and the coding parameters decided at the parameter deciding section, and obtains the data contained in the received signal; and

    a pattern storage section that stores in advance patterns for selecting subbands constituting the subband groups wherein the parameter deciding section decides the modulation parameters and the coding parameters per subband group comprised of the subbands selected based on the patterns stored in the pattern storage section.

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