发明授权
US07916770B2 Method of generating spreading codes, CDMA transmission apparatus, and CDMA reception apparatus
有权
产生扩展码的方法,CDMA发送装置和CDMA接收装置
- 专利标题: Method of generating spreading codes, CDMA transmission apparatus, and CDMA reception apparatus
- 专利标题(中): 产生扩展码的方法,CDMA发送装置和CDMA接收装置
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申请号: US10563248申请日: 2004-06-28
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公开(公告)号: US07916770B2公开(公告)日: 2011-03-29
- 发明人: Mitsuru Uesugi
- 申请人: Mitsuru Uesugi
- 申请人地址: JP Osaka
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Dickinson Wright PLLC
- 优先权: JP2003-272882 20030710
- 国际申请: PCT/JP2004/009449 WO 20040628
- 国际公布: WO2005/006623 WO 20050120
- 主分类号: H04B1/00
- IPC分类号: H04B1/00
摘要:
ej(2nπ/N) calculating section 101 generates a bth chip C(a,b) of an ath spreading code based on C(a,b)=ej(2nπ/N) where e is a base of natural logarithm and N is a length of the spreading code (i.e. spreading code length). It is assumed in the above equation that n=a×b, a=0˜N−1, and b=0˜N−1. It is thereby possible to generate orthogonal spreading codes with arbitrary lengths.
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