发明名称 |
METHOD AND APPARATUS FOR GENERATING COUPLING HADAMARD CODE, AND COMMUNICATION METHOD AND SYSTEM EMPLOYING SAME |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coupling Hadamard code generating method and apparatus, and communication method and system employing the same. <P>SOLUTION: A coupling Hadamard code generating method includes the steps of: generating an (N×N)-dimensional Hadamard matrix A and an (N<SP>2</SP>×N<SP>2</SP>)-dimensional Hadamard matrix B; forming an (N<SP>2</SP>×1)-dimensional column vector (a) by overlapping into one all columns of the generated Hadamard matrix A; and performing Hadamard multiplication multiplying elements of the Hadamard matrix B by elements of corresponding rows of the column vector (a) to generate an (N<SP>2</SP>×N<SP>2</SP>)-dimensional fundamental coupling Hadamard matrix (N is an integer multiple of the number of transmitter antennas and is ≥2) wherein each column is a fundamental coupling Hadamard code. <P>COPYRIGHT: (C)2007,JPO&INPIT |
申请公布号 |
JP2007049712(A) |
申请公布日期 |
2007.02.22 |
申请号 |
JP20060216199 |
申请日期 |
2006.08.08 |
申请人 |
NTT DOCOMO INC |
发明人 |
RA SHINTO;ZHAO MING;ZHANG ZHONGSHAN;KAYAMA HIDETOSHI |
分类号 |
H04B1/707;H04B1/7105;H04B1/712;H04B7/04;H04J11/00;H04J13/12;H04J99/00 |
主分类号 |
H04B1/707 |
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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