发明名称 |
Orthogonal complex spreading method for multichannel and apparatus thereof |
摘要 |
<p>An orthogonal complex spreading method for a multichannel and an apparatus thereof are disclosed. The method includes the steps of complex-summing alpha n1WM,n1Xn1 which is obtained by multiplying an orthogonal Hadamard sequence WM,n1 by a first data Xn1 of a n-th block and alpha 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 alpha n1WM,n1Xn1+j alpha n2WM,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. <IMAGE></p> |
申请公布号 |
EP1499053(A2) |
申请公布日期 |
2005.01.19 |
申请号 |
EP20040077915 |
申请日期 |
1998.10.02 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
BANG, SEUNG CHAN;SHIM, JAE RYONG;HAN, KI CHUL;KIM, JUNG IM;KIM, TAE JOONG |
分类号 |
H04B7/26;H04J11/00;H04J13/00;H04J13/10;(IPC1-7):H04J13/04;H04B1/707 |
主分类号 |
H04B7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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