发明名称 |
METHOD AND APPARATUS FOR COMPENSATING FOR VARIABLE SYMBOL TIMING USING CYCLIC PREFIX IN NON-SYNCHRONIZED OFDM SYSTEM |
摘要 |
Disclosed are a method and apparatus for estimating symbol timing in a non-synchronized OFDM system. The present invention includes synchronizing a frame of a received signal, estimating the symbol timing of each symbol of the frame based on the synchronization, compensating for the symbol timing using a phase difference attributable to a Symbol Timing Offset (STO), variably changing within a Cyclic Prefix (CP) interval due to the frequency offset of a sampling clock and thermal noise, and performing channel equalization using a preamble based on output including corrected phase rotation. |
申请公布号 |
US2014286468(A1) |
申请公布日期 |
2014.09.25 |
申请号 |
US201314097440 |
申请日期 |
2013.12.05 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
LEE Jae Ho;Kim Yang Su;Ra Sang Jung;Koo Han Seung;Choi Dong Joon;Hur Nam Ho |
分类号 |
H04L7/00 |
主分类号 |
H04L7/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method of a reception apparatus estimating symbol timing in a non-synchronized Orthogonal Frequency Division Multiplexing (OFDM) system, the method comprising:
synchronizing a frame of a received signal; estimating symbol timing of each symbol of the frame based on the synchronization; compensating for the symbol timing using a phase difference attributable to a Symbol Timing Offset (STO) that is variably changed within a Cyclic Prefix (CP) interval due to a frequency offset of a sampling clock and thermal noise; and performing channel equalization using a preamble based on output including corrected phase rotation. |
地址 |
Daejeon-si KR |