Method for detecting OFDM timing in OFDM system

Details Method for detecting OFDM timing in OFDM system Method for detecting OFDM timing in OFDM system

2005-08-17

2010-12-07

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S296000, C375S299000, C375S347000, C375S348000, C375S349000, C375S363000

Reexamination Certificate

active

07848436

ABSTRACT:
A scheme for detecting a symbol timing (synchronization) of an Orthogonal Frequency Division Multiplexing (OFDM) system in which a transmitting end inserts a Cyclic Prefix (CP) and/or a Cyclic Suffix (CS) in an OFDM symbol for transmission, and a receiving end uses a new timing metric to detect a timing (synchronization) of the OFDM symbol based on a maximum value of the timing metric, whereby when applying the method for detecting the symbol timing of the OFDM system according to the present invention, the symbol timing can be obtained more precisely, to thusly enable stabilizing of performances of the OFDM system.

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Park, Byungjoon et al.; “A Novel Estimation Method For OFDM Systems”; IEEE Communications Letters, vol. 7, No. 5, May 2003.
Daniel Landstrom, et al: “Symbol Time Offset Estimation in Coherent OFDM Systems”; IEEE Transactions on Communications. vol. 50, No. 4, Apr. 2002.
H.Minn et al., IEEE: “A Simple and Efficient Timing Offset Estimation for OFDM Systems”, Department of Electrical and Computer Engineering, University of Victoria, Canada, 2000.
Lashkarian N. Kiaeri, S.: “Globally optimum ML estimation of timing and frequency offset in OFDM systems”, Communications, 2000. ICC 2000, IEEE International Conference, 2000.

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