Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-12-26
2006-12-26
Feild, Joseph (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S437000, C455S438000, C455S439000, C455S440000, C455S441000, C455S442000, C455S443000, C370S331000
Reexamination Certificate
active
07155223
ABSTRACT:
Method for improving hand-off performance in a code-division multiple access (CDMA) cellular telephone system. A preferred embodiment comprises the analysis of saved hand-off information to minimize the size of neighbor lists for each base station in the cellular telephone system. If a requested base station (for example, base station618) is listed in any neighbor list of any base station (for example, base stations605, 617,and620) involved in the hand-off, then the requested base station is not added to any neighbor list. If the requested base station is not the neighbor lists of any of the base stations involved in the hand-off, then it is added to an initial base station's neighbor list (base station605).
REFERENCES:
patent: 5854981 (1998-12-01), Wallstedt et al.
patent: 5946621 (1999-08-01), Chheda et al.
patent: 5953320 (1999-09-01), Williamson et al.
patent: 5982758 (1999-11-01), Hamdy
patent: 6119005 (2000-09-01), Smolik
patent: 6195342 (2001-02-01), Rohani
patent: 6201968 (2001-03-01), Ostroff et al.
patent: 6321087 (2001-11-01), Do
patent: 6360098 (2002-03-01), Ganesh et al.
patent: 6430414 (2002-08-01), Sorokine et al.
patent: 7082305 (2006-07-01), Willars et al.
patent: 2003/0078043 (2003-04-01), Horwath et al.
patent: 2003/0190916 (2003-10-01), Celedon et al.
patent: 2003/0203735 (2003-10-01), Andrus et al.
patent: 2004/0142699 (2004-07-01), Jollota et al.
Ajibade-Akonai Olumide
Feild Joseph
Nortel Networks Limited
Slater & Matsil L.L.P.
LandOfFree
Optimizing hand-off neighbor lists for improved system... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optimizing hand-off neighbor lists for improved system..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimizing hand-off neighbor lists for improved system... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3675814