发明名称 |
Apparatus and method for improved performance in MC-CDMA radio telecommunication systems that use pulse-shaping filters |
摘要 |
A apparatus and method for improved performance in radio telecommunications systems, and in particular multi-carrier code division multiple access (MC-CDMA) networks that employ pulse-shaping filters on the transmit side of a radio link. In order to more accurately transmit a radio signal bearing a symbol sequence, the modulated and spread information stream is upsampled using a technique that involves inserting zeros in the frequency domain. A corresponding downsampling procedure on the receive side permits reconstruction of the transmitted symbols. A new channel estimation algorithm may also be used, and the improved channel estimation advantageously employed to obtain more faithful symbol detection.
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申请公布号 |
US2005018598(A1) |
申请公布日期 |
2005.01.27 |
申请号 |
US20030744351 |
申请日期 |
2003.12.22 |
申请人 |
BORRAN MOHAMMAD J.;VARSHNEY PRABODH;VILPPONEN HANNU;PAPADIMITRIOU PANAYIOTIS |
发明人 |
BORRAN MOHAMMAD J.;VARSHNEY PRABODH;VILPPONEN HANNU;PAPADIMITRIOU PANAYIOTIS |
分类号 |
H04J11/00;H04L5/02;H04L25/02;H04L25/03;H04L27/26;(IPC1-7):H04J11/00 |
主分类号 |
H04J11/00 |
代理机构 |
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主权项 |
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地址 |
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