CODE MODULATION AND DEMODULATION METHODS AND APPARATUSES FOR HIGH ORDER MODULATION

摘要

Disclosed are a code modulation method and apparatus for high order modulation. The method comprises: converting information that needs to be transmitted into a bit data stream, and demultiplexing the bit data stream into more than one channel of bit data stream; performing first-type encoding on at least one channel of bit data stream in the more than one channel of bit data stream, to obtain first output data; performing second-type encoding on at least one of the remaining channels of bit data stream on which the first-type encoding is not performed, to obtain second output data; and performing quadrature amplitude modulation on the first output data and the second output data, to generate a modulation symbol for output. Compared with the prior art, the correctness rate of demodulation in the technical solution is improved significantly, achieving higher transmission efficiency.