发明名称 |
TIMING CONTROL IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEX SYSTEMS BASED ON EFFECTIVE SIGNAL-TO-NOISE RATIO |
摘要 |
A spread-spectrum communication system provides an effective signal-to-noise ratio (SNR) of received orthogonal frequency division multiplex (OFDM) slots in the presence of timing errors. Effective SNR can serve as a diagnostic tool for determining whether there was a timing error when a measured packet error rate (PER) remains high, and a predicted PER from the effective SNR remains low. A loop can use the effective SNR to control a time reference used by an OFDM decoder.
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申请公布号 |
KR20080007486(A) |
申请公布日期 |
2008.01.21 |
申请号 |
KR20077027871 |
申请日期 |
2006.04.26 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
JAYARAMAN SRIKANT;XU HAO;NAMGOONG, JUNE;MANGAN MICHAEL JOHN;BLACK PETER J. |
分类号 |
H04L27/26;H04J3/00 |
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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