Boundary tracking apparatus and related method of OFDM system

Details Boundary tracking apparatus and related method of OFDM system Boundary tracking apparatus and related method of OFDM system

2008-07-29

2008-07-29

Tran, Khanh C (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S348000

Reexamination Certificate

active

07406127

ABSTRACT:
A boundary tracking method applied in an OFDM receiver includes generating a plurality of demodulated signal sets corresponding to part of sub-carriers of a packet according to different boundaries with different positions located at the packet, determining the most precise one of the boundaries according to a plurality of inter-symbol interference (ISI) values according to the demodulated signal sets, and calibrating a timing of a currently utilized boundary.

REFERENCES:
patent: 6967994 (2005-11-01), Boer et al.
patent: 7203245 (2007-04-01), Murphy
patent: 7251282 (2007-07-01), Maltsev et al.
patent: 2002/0065047 (2002-05-01), Moose
patent: 2004/0170237 (2004-09-01), Chadha et al.
patent: 2005/0008088 (2005-01-01), Liu et al.

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