Data transmission with trellis coding

摘要

The present invention provides a data transmission method, including:
performing a serial-to-parallel conversion for input date stream, obtaining 4 parallel data streams and partitioning the 4 parallel data streams into 2 groups; performing trellis encoding for one group and selecting one basic codeword subset from all basic codeword subsets according to the trellis encoding output; performing trellis encoding for one data stream in the other group and selecting one phase subset from all phase subsets according to the trellis encoding output, and selecting a phase value from the selected phase subset according to another data stream in the other group; rotating the codeword selected from the basic codeword subset by the selected phase value and obtaining and transmitting an output codeword to a data receive-side. The present invention also discloses another data transmission method and two data transmission apparatuses.