发明名称 |
Frequency synchronization apparatus and method in OFDM system |
摘要 |
A frequency synchronization apparatus includes: a correlating unit that obtains a first correlation value by correlating a known reference guard interval of an OFDM symbol and a reference copy interval corresponding to the reference guard interval, and obtains a second correlation value by correlating the estimate guard interval and an estimate copy interval corresponding to the estimate guard interval; a determining unit that compares the first and second correlation values to determine a first case where the first correlation value is larger by a pre-set magnification than the second correlation value, a second case where the second correlation value is larger by a pre-set magnification than the first correlation value, and a third case which is not the first case nor the second case; and a frequency offset estimating unit that estimates a frequency offset by using a correlation value corresponding to any one of the first to third. |
申请公布号 |
US8275059(B2) |
申请公布日期 |
2012.09.25 |
申请号 |
US20090477269 |
申请日期 |
2009.06.03 |
申请人 |
KOO BON YOUNG;CHOI HYUNG JIN;IM SE BIN;KIM JUNG IN;SAMSUNG ELECTRO-MECHANICS CO., LTD.;SUNGYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATION |
发明人 |
KOO BON YOUNG;CHOI HYUNG JIN;IM SE BIN;KIM JUNG IN |
分类号 |
H04L27/28 |
主分类号 |
H04L27/28 |
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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