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METHOD AND DEVICE FOR TRANSFERRING DATA IN A MULTI-CARRIER SYSTEM HAVING PARALLEL CONCATENATED ENCODING AND MODULATION

  • US 20090067526A1
  • Filed: 08/30/2008
  • Published: 03/12/2009
  • Est. Priority Date: 05/08/2001
  • Status: Active Grant
First Claim
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1. A transmit device for data transfer in a multi-carrier system, comprising:

  • a first encoding level for performing a first encoding on a serial data stream;

    a transmit demultiplexer level for dividing the encoded serial data stream into a plurality of parallel data streams;

    a second encoding level for performing a second encoding for the plurality of parallel data streams, resulting in a plurality of encoded parallel data streams;

    a modulator level for performing a QAM modulation for the plurality of encoded parallel data streams, resulting in a plurality of modulated parallel data streams;

    a transmit multiplexer level for rearranging the modulated parallel data streams into a serial data stream;

    a multi-carrier modulator for performing a pulse shaping and a copying of QAM symbols onto a multi-carrier time signal; and

    a bit-load device for performing a bit-load algorithm and for controlling both the transmit demultiplexer level and the transmit multiplexer level;

    wherein the second encoding level has a first plurality of encoders, the modulator level has a second plurality of TCM modulators for performing a plurality of different modulation procedures, and the first encoding level has a puncturer for performing a data speed adaptation of the encoded serial data stream depending on the bit-load algorithm performed.

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