| 发明名称 |
Method for generating 2D OVSF codes in multicarrier DS-CDMA systems |
| 摘要 |
A code tree of two-dimensional orthogonal variable spreading factor (2D-OVSF) code matrices for a multicarrier direct-sequence code-division multiple-access (MC-DS/CDMA) communications system is generated by providing two sets of 2x2 orthogonal matrices {A<SUP>(1)</SUP><SUB>(2x2), </SUB>A<SUP>(2)</SUP><SUB>(2x2)</SUB>} and {B<SUP>(1)</SUP><SUB>(2x2), </SUB>B<SUP>(2)</SUP><SUB>(2x2)</SUB>}. The first set of 2x2 matrices is used to generate a pair of sibling nodes in the code tree that respectively represent matrices A<SUP>(1)</SUP><SUB>(2x2</SUB><SUB><SUP2>alpha</SUP2></SUB><SUB>) </SUB>and A<SUP>(2)</SUP><SUB>(2x2</SUB><SUB><SUP2>alpha</SUP2></SUB><SUB>) </SUB>by iterating the relations
|
| 申请公布号 |
US7197007(B2) |
申请公布日期 |
2007.03.27 |
| 申请号 |
US20020063771 |
申请日期 |
2002.05.11 |
| 申请人 |
ACCTON TECHNOLOGY CORPORATION |
发明人 |
YANG GUU-CHANG;YANG CHIA-MING;LIN PEI-HSUAN |
| 分类号 |
H04J11/00;H04L5/02 |
主分类号 |
H04J11/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
