发明名称 |
DEVICE AND METHOD FOR GENERATING QUATERNARY COMPLEX QUASI-ORTHOGONAL CODE AND SPREADING TRANSMISSION SIGNAL USING QUASI-ORTHOGONAL CODE IN CDMA COMMUNICATION SYSTEM |
摘要 |
A method for generating a quaternary complex quasi-orthogonal code in a CDMA communication system is disclosed. The method comprises generating an M-sequence and then generating specific sequences having a good full correlation property with the M-sequence; generating a column permutation function for converting the M-sequence to a Walsh code; generating candidate masks by column shifting the specific sequences with the column permutation function; generating quasi-orthogonal code representatives by operating the candidate masks and the Walsh codes having the same length as that of the candidate masks; and selecting a quasi-orthogonal code satisfying a partial correlation with the Walsh codes, out of the generated quasi-orthogonal code representatives, and selecting a mask related to generation of the selected quasi-orthogonal code. |
申请公布号 |
IL135837(D0) |
申请公布日期 |
2001.05.20 |
申请号 |
IL19990135837 |
申请日期 |
1999.09.08 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
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分类号 |
H04B1/707;H04J13/12;H04M3/00 |
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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