发明名称 |
Method and apparatus for modulating symbols in an orthogonal frequency division multiplexing system and transmission apparatus using the same |
摘要 |
A method for modulating a symbol in a transmitter of an Orthogonal Frequency Division Multiplexing (OFDM) system. The symbol modulation method includes multiplying an input stream of an Inverse Fast Fourier Transform (IFFT) unit by a Twiddling factor for circular-shifting the input stream of the IFFT unit by a Cyclic Prefix (CP) length; performing IFFT on the input stream of the IFFT unit, which is multiplied by the Twiddling factor; buffering data corresponding to the CP length beginning from a front of an output stream of the IFFT unit; and generating an OFDM symbol by forward-copying the buffered data to a back of the output stream of the IFFT unit.
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申请公布号 |
US8046398(B2) |
申请公布日期 |
2011.10.25 |
申请号 |
US20070966249 |
申请日期 |
2007.12.28 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KANG JUN-KYU;CHO YOUNG-IK;KIM HUN-KEE |
分类号 |
G06F15/00 |
主分类号 |
G06F15/00 |
代理机构 |
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代理人 |
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地址 |
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