发明名称 |
METHOD AND APPARATUS FOR DETECTING TRANSMISSION OF A PACKET IN A WIRELESS COMMUNICATION SYSTEM |
摘要 |
A method and apparatus for detecting transmission of a packet in a wireless communication system are disclosed. A packet includes a preamble which comprises multiple repetition of a training sequence. A signal is detected and the detected signal is correlated with a delayed version of the detected signal which is delayed by a predetermined delay time to generate a sequence of correlations. The correlations are normalized. A difference between a first normalized correlation and a second normalized correlation that are separated by the predetermined delay time is calculated. The difference is compared to a threshold. A transmission of the packet is detected based on the comparison. The first and second normalized correlations may be averaged over first and second averaging periods, respectively. A point generating a maximum difference may be identified, and packet synchronization may be performed based on the identified point.
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申请公布号 |
US2007147552(A1) |
申请公布日期 |
2007.06.28 |
申请号 |
US20060609519 |
申请日期 |
2006.12.12 |
申请人 |
INTERDIGITAL TECHNOLOGY CORPORATION |
发明人 |
OLESEN ROBERT L.;LU I-TAI;YANG YONGWEN;TSAI KUNJU |
分类号 |
H04L27/06 |
主分类号 |
H04L27/06 |
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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