发明名称 |
Apparatus and method for generating preamble sequence in a BWA communication system using OFDM |
摘要 |
A preamble sequence generating apparatus and method in a BWA communication system using OFDM. An ARM code generator generates at least one ARM code of a different length. A sub-carrier selection and frequency mask unit maps a second number of ARM code components to a second number of sub-carriers among a third number of OFDM sub-carriers distributed equally in a frequency band and maps null components to sub-carriers excluding from the second number of sub-carriers. Here, the second number being the number of (the components of the ARM code) minus (a DC component and a first number of ARM code components set to prevent adjacent channel interference). Then, an IFFT generates a preamble sequence by inverse-fast-Fourier-transforming the sub-carriers received from the sub-carrier and frequency mask unit.
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申请公布号 |
US2004208253(A1) |
申请公布日期 |
2004.10.21 |
申请号 |
US20020228659 |
申请日期 |
2002.08.27 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JOO PAN-YUH |
分类号 |
H04L27/26;(IPC1-7):H04K1/10 |
主分类号 |
H04L27/26 |
代理机构 |
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代理人 |
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地址 |
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