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Method and apparatus for mapping/demapping modulation symbols in a mobile communication system

  • US 8,942,079 B2
  • Filed: 04/14/2008
  • Issued: 01/27/2015
  • Est. Priority Date: 04/13/2007
  • Status: Active Grant
First Claim
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1. A method for mapping reference symbols and modulation symbols in a transmitter of a mobile communication system, the method comprising:

  • channel-encoding and modulating a user information stream to be transmitted;

    generating a systematic symbol stream containing systematic modulation symbols and a parity symbol stream containing parity modulation symbols using the user information stream; and

    preferentially and sequentially arranging a first portion of the systematic modulation symbols along a frequency domain in a symbol interval including no reference symbol;

    sequentially arranging a second portion of the systematic modulation symbols along the frequency domain in a next symbol interval including no reference symbol; and

    arranging the parity modulation symbols in a symbol interval including at least one reference symbol.

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