| 摘要 |
A method and system generates a higher order modulation, in which a complex sequence of binary digits corresponding to symbols of a higher order modulation is received. The symbols correspond to constellation points of the higher order modulation. First mapping means map the symbols of the higher order modulation to first constellation points of a first QPSK modulation and output an output signal of the first QPSK modulation corresponding to the first constellation points. Similarly, second mapping means map the symbols of the higher order modulation to second constellation points of a second QPSK modulation and output an output signal of the second QPSK modulation corresponding to the second constellation points. Adding means add the output signals of the first and second QPSK modulations, thereby generating the constellation points of the higher order modulation.
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