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Detail
Registered SYSTEM AND METHOD FOR TIMING ACQUISITION AND CARRIER FREQUENCY OFFSET ESTIMATION IN WIRELESS
- Inventors
- Hyoungsoo Lim, Dongseung Kwon
- Application No.
- 11521171 (2006.09.14)
- Publication No.
- 20070140104 (2007.06.21)
- Registration No.
- 8300621 (2012.10.30)
- Country
- UNITED STATES
- Abstract
- The present invention relates to a method for timing acquisition and carrier frequency offset estimation of an OFDM communication system and an apparatus using the same.For this purpose the present invention provides a method for calculating at least one auto-correlation and calculating an observation value by performing a sliding sum on the at least one auto-correlation, and calculating a peak point of an absolute value of the observation as frame timing.In addition, the present invention provides a method for generating a third OFDM symbol that is generated by delaying a second OFDM symbol, calculating an observation value through the second and third OFDM symbols, and calculating a phase difference from a result of multiplication of the observation value and a conjugate complex value of the observation value such that a carrier frequency offset can be estimated.According to the present invention, the number of OFDM symbols is sufficient for obtaining timing acquisition with high reliability, and the offset estimation algorithm having a lower implementation complexity is provided such that superior performance is expected and carrier frequency offset with high reliability can be achieved.
- Family
| Status | Patent | Country | KIPRIS |
|---|---|---|---|
| Registered | 직교 주파수 분할 다중화 방식의 통신 시스템의 타이밍 획득 및 반송파 주파수 오차 추정 장치 및 방법 | KOREA | KIPRIS |