Method for estimating frequency offset at a subscriber...

Details Method for estimating frequency offset at a subscriber... Method for estimating frequency offset at a subscriber...

2011-03-29

2011-03-29

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S220000

Reexamination Certificate

active

07916800

ABSTRACT:
A method and system of estimating frequency offset of a subscriber station is disclosed. The method includes the subscriber station receiving a composite signal, wherein the composite signal includes multi-carrier signals transmitted from a plurality of base stations. The subscriber station selects a subset of the plurality of base stations. The subscriber station selects at least one pair of multi-carrier symbols of the composite signal, wherein each of the at least one pair of multi-carrier symbols includes a plurality of pilot sub-carriers. The subscriber station selects at least one group of the plurality of pilot sub-carriers within the at least one pair of multi-carrier symbols based on transmit pilot symbols of the pilot sub-carriers of the multi-carrier signals transmitted by the subset of the plurality of base stations. The frequency offset is estimated based on a conjugate product between a linear combination of received symbols of a first multi-carrier symbol of a pair of multi-carrier symbols with a linear combination of received symbols of a second multi-carrier symbol of the pair of multi-carrier symbols on each of the pilot sub-carriers of the at least one group of the plurality of pilot sub-carriers.

REFERENCES:
patent: 7039131 (2006-05-01), Banerjea
patent: 7218691 (2007-05-01), Narasimhan
patent: 7224666 (2007-05-01), Gummadi et al.
patent: 2005/0169165 (2005-08-01), Cimini et al.
patent: 2007/0142067 (2007-06-01), Cheng et al.
patent: 2007/0230388 (2007-10-01), Li et al.
patent: 2008/0205451 (2008-08-01), Ramesh et al.
patent: 2009/0074045 (2009-03-01), Mudulodu et al.
patent: 2009/0092199 (2009-04-01), Mudulodu et al.
patent: 2010/0040167 (2010-02-01), Aoki et al.

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