发明名称 Orthogonal complex spreading method for multichannel and apparatus thereof
摘要 An orthogonal complex spreading method for a multichannel and an apparatus thereof are disclosed. The method includes the steps of complex-summing alphan1WM,n1Xn1 which is obtained by multiplying an orthogonal Hadamard sequence WM,n1 by a first data Xn1 of a n-th block and alpha n2WM,n2Xn2 which is obtained by multiplying an orthogonal Hadamard sequence W1,n2 by a second data Xn2 of a n-th block; complex-multiplying alphan1WM,n1Xn1+jalphan2WM,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.
申请公布号 US2002097779(A1) 申请公布日期 2002.07.25
申请号 US20010767953 申请日期 2001.03.27
申请人 ELECTRONICS AND TELECOMMUNICATIONS RESEARCH CENTER 发明人 BANG SEUNG CHAN;SHIM JAE RYONG;HAN KI CHUL;KIM JUNG IM;KIM TAE JOONG
分类号 H04J13/04;H04B1/69;H04B1/707;H04B7/26;H04J11/00;H04J13/00;H04J13/10;(IPC1-7):H04K1/00;H04B15/00;H04L27/30 主分类号 H04J13/04
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