Base station apparatus and resource allocation method

  • US 9,462,588 B2
  • Filed: 09/22/2015
  • Issued: 10/04/2016
  • Est. Priority Date: 11/14/2008
  • Status: Active Grant
First Claim
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1. A communication apparatus comprising:

  • a discrete Fourier transformer which, in operation, performs Fourier transformations (DFTs) on a plurality of symbol sequences, each symbol sequence corresponding to one of a plurality of layers, wherein the plurality of symbol sequences comprise different code words from each other and a number of the plurality of layers is at least as large as a number of the different code words;

    a precoder which, in operation, generates a plurality of precoded symbol sequences based on the plurality of DFT performed symbol sequences and a precoding matrix; and

    a mapper which, in operation, maps each of the plurality of precoded symbol sequences on a same set of discontinuous frequency resources, each frequency resource being located on a separate position from other frequency resources on a frequency axis, wherein the same set of discontinuous frequency resources means that a first set of discontinuous frequency resources, to which a first precoded symbol sequence is mapped, and a second set of discontinuous frequency resources, to which a second precoded symbol sequence is mapped, share at least one of a number of clusters, cluster sizes, and a frequency position of each of the clusters in common, a cluster size being a frequency bandwidth of the discontinuous frequency resource.

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