Abstract
An orthogonal compler spreading method for multiple channels allocating at least two input channels to first and second groups comprising steps of:
generating a first output signal by multiplying (600) a first orthogonal sequence by first data and a first gain outputting a first output;
generating a second output signal by multiplying (700) a second orthogonal sequence by a second data and a second gain; characterized by
generating a complex code by summing (810 820) the first output signal and the second output signal in the complex form; and
complex-multiplying (900) the complex code by SC(OS 3+jPOS4) wherein
SC is a spreading code OS 3 and OS4 are orthogonal sequences and P is a predetermined sequence.
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