Phase compensation method of space-frequency group code in use for overcoming drift of interception position in OFDM |
Title： |
| Phase compensation method of space-frequency group code in use for overcoming drift of interception position in OFDM |
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Application Number： |
200610113037 |
Application Date： |
2006/09/08 |
Announcement Date： |
2007/02/21 |
Pub. Date： |
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Publication Number： |
1917498 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H04L 27/26, H04L 25/02 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Zhou Shidong, Gao Qunyi, Zhou Chunhui, Zhang Xiujun, Wang Jing, Li Yunzhou |
Key Words： |
space-frequency group code, phase compensation, overcoming, drift of interception position, OFDM |
Abstract： |
The invention features the following points; the interception position variation state is used to calculate the rotation bits number; using the channel estimation technology with ration to make channel estimation; the phase compensation is made for the received frequency domain data according the its position in the space frequency block code; finally, the phase-compensated frequency domain data and its corresponding channel estimation value are inputted to the space frequency block coding module. When the interception position has a jump variation, the different phase shift will be generated by different subcarrier wave in same OFDM symbol, and in this case, the invention solves the problem of combining the space frequency block code with the MIMO-OFDM. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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