发明名称 |
FREQUENCY OFFSET ESTIMATION METHOD IN OFDM SYSTEM AND OFDM RECEIVER USING THE SAME |
摘要 |
A method of estimating a frequency offset based on a training symbol in a receiver of an orthogonal frequency division multiplexing (OFDM) system, includes receiving a first training symbol having a periodicity and a predetermined second training symbol, and calculating a correlation value for the first training symbol based on a coherence phase bandwidth (CPB). The method further includes determining a position of a peak value from the correlation value for an integer multiple frequency offset candidate based on a threshold value, and calculating a correlation value for the second training symbol based on the CPB. The method further includes estimating a position corresponding to a maximum value of the correlation value for the second training symbol as the frequency offset based on the position of the peak value. |
申请公布号 |
US2015030108(A1) |
申请公布日期 |
2015.01.29 |
申请号 |
US201414339664 |
申请日期 |
2014.07.24 |
申请人 |
Research & Business Foundation Sungkyunkwan University |
发明人 |
CHAE Keunhong;YOON Seokho |
分类号 |
H04L27/26 |
主分类号 |
H04L27/26 |
代理机构 |
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代理人 |
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主权项 |
1. A method of estimating a frequency offset based on a training symbol in a receiver of an orthogonal frequency division multiplexing (OFDM) system, the method comprising:
receiving a first training symbol having a periodicity and a predetermined second training symbol; calculating a correlation value for the first training symbol based on a coherence phase bandwidth (CPB); determining a position of a peak value from the correlation value for an integer multiple frequency offset candidate based on a threshold value; calculating a correlation value for the second training symbol based on the CPB; and estimating a position corresponding to a maximum value of the correlation value for the second training symbol as the frequency offset based on the position of the peak value. |
地址 |
Suwon-si KR |