Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-02-28
2006-02-28
Barnie, Rexford (Department: 2643)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456500
Reexamination Certificate
active
07006834
ABSTRACT:
Base stations in a wireless telecommunications network are calibrated to GPS system time by using position measurement data obtained from one or more hybrid mobile stations during regular position location sessions. Therefore, the calibration data need not be obtained externally from a calibration instrument, and the calibration may occur on a continuous basis to compensate for any disturbances or drift in the base stations. Privacy concerns are alleviated by using regular position location sessions that occur only when the operator of the hybrid mobile station places or answers a wireless telephone call. In a preferred implementation, the network uses Code Division Multiple Access (CDMA), and the hybrid mobile stations may provide Advanced Forward Link Trilateration (AFLT) or GPS position location data to the network.
REFERENCES:
patent: 5872774 (1999-02-01), Wheatley, III et al.
patent: 5890068 (1999-03-01), Fattouche et al.
patent: 5970413 (1999-10-01), Gilhousen
patent: 6081229 (2000-06-01), Soliman et al.
patent: 6166685 (2000-12-01), Soliman
patent: 6252543 (2001-06-01), Camp
patent: WO 99/47943 (1999-09-01), None
patent: 0021233 (2000-04-01), None
patent: 0120818 (2001-03-01), None
patent: 0155803 (2001-08-01), None
patent: 0223215 (2002-03-01), None
Gaal Peter
Soliman Samir
Barnie Rexford
Greerhaus Bruce W.
Mays Andrea
Qualcomm Incorporated
Wadsworth Philip
LandOfFree
Base station time calibration using position measurement... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Base station time calibration using position measurement..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Base station time calibration using position measurement... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3684842