发明名称 |
METHOD AND APPARATUS FOR ACCURATE TIME SYNCHRONIZATION IN WIRELESS COMMUNICATION SYSTEM |
摘要 |
A method and apparatus for time synchronization and an OFDMA receiver thereof are provided. A preamble timing is obtained by a two-stage correlation in a time domain between a sequence of a received symbol and a reference preamble. The two-stage correlation is further simplified to perform a conjugate multiplication between a one-stage correlation and its correspondingly delayed result. A preamble boundary is adaptively determined by a peak value based on a result of the two-stage correlation. In this way, the time synchronization is achieved with a robust performance in a low SNR, high frequency offset or large delay spread fading channel.
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申请公布号 |
US2013021976(A1) |
申请公布日期 |
2013.01.24 |
申请号 |
US201213629650 |
申请日期 |
2012.09.28 |
申请人 |
MURATA MANUFACTURING CO., LTD.;MURATA MANUFACTURING CO., LTD. |
发明人 |
YANG DONG;ZHU YUJIE;YU YANBING |
分类号 |
H04W56/00 |
主分类号 |
H04W56/00 |
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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