发明名称 |
Method for communicating in an oversampled ofdm network |
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.
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申请公布号 |
EP2239903(A2) |
申请公布日期 |
2010.10.13 |
申请号 |
EP20100003295 |
申请日期 |
2010.03.26 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
ORLIK, PHILIP V.;DU, QINGHE;DUAN, CHUNJIE;SAHINOGLU, ZAFER |
分类号 |
H04L27/26;H04J13/00 |
主分类号 |
H04L27/26 |
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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