Estimating frequency offset at a subscriber station receiver

Details Estimating frequency offset at a subscriber station receiver Estimating frequency offset at a subscriber station receiver

2007-09-13

2010-10-12

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S229000, C370S347000

Reexamination Certificate

active

07813437

ABSTRACT:
A method and system of estimating frequency offset at a subscriber station is disclosed. The method includes the subscriber station receiving a composite signal, in which 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 include a plurality of pilot sub-carriers. The subscriber station selects a subset of the plurality of pilot sub-carriers of 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 received symbols across at least one pair of multi-carrier symbols of each of the pilot sub-carriers of the selected subset 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.

Affiliated with

Also associated with

Rating

Estimating frequency offset at a subscriber station receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Estimating frequency offset at a subscriber station receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Estimating frequency offset at a subscriber station receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4153626