发明公开
- 专利标题： Method for communicating in an oversampled ofdm network
- 专利标题（中）： 在过采样OFDM网络进行传输的方法
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申请号： EP10003295.2申请日： 2010-03-26
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公开(公告)号： EP2239903A3公开(公告)日： 2013-05-29
- 发明人: Orlik, Philip V. , Du, Qinghe , Duan, Chunjie , Sahinoglu, Zafer
- 申请人： Mitsubishi Electric Corporation
- 申请人地址： 7-3 Marunouchi 2-Chome Chiyoda-ku Tokyo 100-8310 JP
- 专利权人： Mitsubishi Electric Corporation
- 当前专利权人： Mitsubishi Electric Corporation
- 当前专利权人地址： 7-3 Marunouchi 2-Chome Chiyoda-ku Tokyo 100-8310 JP
- 代理机构： Pfenning, Meinig & Partner GbR
- 优先权： US420629 20090408
- 主分类号： H04L27/26
- IPC分类号： H04L27/26 ; H04J13/00
摘要：
In an oversampled orthogonal frequency-division multiplexing (OFDM) network, the preamble used for time synchronization does not have an ideal autocorrelation function due to guard bands, which degrade the accuracy of symbol timing. Therefore, a zero-correlation-zone (ZCZ) based preamble is used for time synchronization. A cross correlation function (CCF) used for time synchronization is forced to 0 within a certain region around a main lobe. The length of the ZCZ is guaranteed to be larger than a cyclic prefix length of OFDM data symbols synchronization accuracy.
公开/授权文献
- EP2239903A2 Method for communicating in an oversampled ofdm network 公开/授权日：2010-10-13
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