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Registered UPLINK CHANEL ESTIMATION SYSTEM FOR ORTHOGONAL FRQUENCY DIVISION MULTIPLE ACCESS SYSTEM AND METHOD THEREOF
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UPLINK CHANEL ESTIMATION SYSTEM FOR ORTHOGONAL FRQUENCY DIVISION MULTIPLE ACCESS SYSTEM AND METHOD THEREOF
- Inventors
- Young Ha Lee, Chang Wahn Yu, 박윤옥, Hwang Seung Ku
- Application No.
- 10970208 (2004.10.20)
- Publication No.
- 20050141626 (2005.06.30)
- Registration No.
- 7428267 (2008.09.23)
- Country
- UNITED STATES
- Abstract
- In the uplink of an OFDMA system, a preamble is used to estimate a channel and then the pilot tones of a data symbol are used for channel estimation to update the channel estimate. The channel estimate is used for channel compensation, and the phase of the channel is corrected using the channel estimate obtained from the pilot tones. In this way, the channel estimation performance and hence the compensation ability can be enhanced.
- KSP Keywords
- Channel estimation(CE), Compensation ability, channel compensation, estimation performance, multiple access, pilot tones(PTs)