发明名称 |
PREAMBLE DESIGN FOR IMPLEMENTING FREQUENCY OFFSET ESTIMATION AND CHANNEL EQUALIZATION IN BURST ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING TRANSMISSION SYSTEM |
摘要 |
PURPOSE: A preamble design for implementing a frequency offset estimation and a channel equalization in a burst orthogonal frequency division multiplexing transmission system is provided to satisfy the required frequency estimation performance with a small number of correlation samples by using the back-end samples of the guard period without depending on the inter-symbol interference. CONSTITUTION: A preamble design for implementing a frequency offset estimation and a channel equalization in a burst orthogonal frequency division multiplexing transmission system includes the steps of: (a) calculating(S410,S420) a normalized frequency offset for a test sample signal having a relation that the correlation distance is the number(N) of the sub-carrier waves and a test sample signal having a relation that the correlation distance is two times(2N) of the number of the sub-carrier waves; and (b) estimating(S430-S470) the normalized frequency offset by subtracting or adding a predetermined value from/to the normalized frequency offset calculated, when the correlation distance is 2N, in response to the range of the normalized frequency offset calculated when the correlation distance is N.
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申请公布号 |
KR20040020643(A) |
申请公布日期 |
2004.03.09 |
申请号 |
KR20020052294 |
申请日期 |
2002.08.31 |
申请人 |
SAMSUNG THALES CO., LTD. |
发明人 |
CHOI, HYEONG JIN;KIM, GI YUN;KIM, HO |
分类号 |
H04J11/00;H04L27/26;(IPC1-7):H04J11/00 |
主分类号 |
H04J11/00 |
代理机构 |
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地址 |
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