OFDM-based timing synchronization detection apparatus and...

Details OFDM-based timing synchronization detection apparatus and... OFDM-based timing synchronization detection apparatus and...

2007-08-28

2007-08-28

Vo, Don N. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

Reexamination Certificate

active

10702034

ABSTRACT:
An orthogonal frequency division multiplexing (OFDM)-based synchronization detection apparatus includes an input register that stores data, a shifter that shifts the data from the input register based on the exponent of a quantized correlation coefficient, an adder that sums the shifted data, and a peak detector that determines the peak value from among the summed shifted data. The OFDM-based synchronization detection method involves quantizing correlation coefficients for synchronization detection into 2n-level quantized correlation coefficients (n is an integer not less than 0), shifting input data using the 2n-level quantized correlation coefficients, and detecting synchronization using a shifting result.

REFERENCES:
patent: 6021421 (2000-02-01), Retter et al.
patent: 2002/0126768 (2002-09-01), Isaksson et al.
patent: 2003/0161278 (2003-08-01), Igura

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