发明授权
US07359428B2 VDSL transmission employing multi-code multi carrier CDMA modulation
失效
采用多码多载波CDMA调制的VDSL传输
- 专利标题： VDSL transmission employing multi-code multi carrier CDMA modulation
- 专利标题（中）： 采用多码多载波CDMA调制的VDSL传输
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申请号： US10901976申请日： 2004-07-30
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公开(公告)号： US07359428B2公开(公告)日： 2008-04-15
- 发明人: Massimo Rovini , Giovanni Vanini , Luca Fanucci
- 申请人： Massimo Rovini , Giovanni Vanini , Luca Fanucci
- 申请人地址： IT Pisa
- 专利权人： Consorzio Pisa Ricerche
- 当前专利权人： Consorzio Pisa Ricerche
- 当前专利权人地址： IT Pisa
- 代理机构： Dennison, Schultz & MacDonald
- 优先权： ITPI2003A0063 20030821
- 主分类号： H04B1/707
- IPC分类号： H04B1/707
摘要：
An improved transmission method for high-rate digital communication on unshielded twisted copper pairs for Very-High Speed Digital Subscriber Loop (VDSL) modems. The new modulation scheme is a Multi Code Multi Carrier Code Division Multiple Access, hereafter named MC2 CDMA. The system takes advantage from both the CDMA modulation and the Multi-Carrier transmission and, in addition, the channel throughput is increased adopting a multi-code approach. The novel scheme encompasses transmitter, channel and receiver loading.
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