Abstract
An orthogonal complex spreading method for a multichannel
and an apparatus thereof are disclosed. The method includes
the steps of complex-summing αn1WM,n1Xn1 which is obtained by
multiplying an orthogonal Hadamard sequence WM,n1 by a first
data Xn1 of a n-th block and α n2W M,n2X n2 which is obtained by
multiplying an orthogonal Hadamard sequence WM,n2 by a second
data Xn2 of a n-th block; complex-multiplying
αn1WM,n1Xn1+jαn2WM,n2Xn2 which is summed in the complex type and
WM,n3+jPWM,n4 of the complex type using a complex multiplier and
outputting as an in-phase information and quadrature phase
information; and summing only in-phase information outputted
from a plurality of blocks and only quadrature phase
information outputted therefrom and spreading the same using
a spreading code.
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