Patent ID: 7421030

Claim:
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.