Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2004-07-20
2008-12-02
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S136000, C375S147000, C375S316000, C375S343000
Reexamination Certificate
active
07460626
ABSTRACT:
A method for detecting inter-carrier-symbol interference (ICSI) in an OFDM system includes the steps of computing a first correlation value representing the correlation between at least one of first signals of a first symbol and at least one of second signals of a second symbol previous to the first symbol, wherein the first signal is transmitted via a first sub-carrier and the second signal is transmitted via a second sub-carrier adjacent to the first sub-carrier; computing a second correlation value representing the correlation between the at least one first signal and at least one of third signals of a third symbol next to the first symbol, wherein the signal is transmitted via the first sub-carrier and the third signal is transmitted via the second sub-carrier; comparing the first correlation value with the second correlation value; and adjusting the timing of the boundary according to the comparison result.
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Michael Speth, et al.; “Optimum Receiver Design for OFDM-Based Broadband Transmission-Part 2: A Case Study”;IEEE Transactions on Communications, vol. 49, No. 4, Apr. 2001.
Cho Chun-Ming
Yen Kuang-Yu
Hsu Winston
Liu Shuwang
Realtek Semiconductor Corp.
Singh Hirdepal
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