Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2008-10-21
2011-12-20
Shedrick, Charles (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S436000, C370S331000, C370S468000
Reexamination Certificate
active
08081981
ABSTRACT:
A method and an apparatus for optimizing a neighbor list in a mobile communication system is disclosed. In one embodiment, the apparatus includes: i) a data collecting unit, collecting wireless quality measurement data and call fault data of a mobile communication terminal, wherein the call fault data is information on a call fault event generated because no sub-cell information is present in the neighbor list when the mobile communication terminal carries out a handover, ii) a data analyzing unit, analyzing the wireless quality measurement data and the call fault data and calculating a frequency of a sub-cell being included in an active set for each handover-possible target sub-cell and a frequency of call fault event occurrence, wherein the frequency of being included in the active set is a frequency of the sub-cell and target sub-cell being included simultaneously in the active set for handover and iii) a neighbor list optimizing unit using the frequency of being included in the active set and the frequency of call fault event occurrence to set an order of priority of handover-possible target sub-cells for the sub-cell and generating a neighbor list.
REFERENCES:
patent: 6034971 (2000-03-01), Love et al.
patent: 7826847 (2010-11-01), Roskowski et al.
patent: 2005/0048974 (2005-03-01), Kim et al.
patent: 10-2004-0048038 (2004-06-01), None
patent: 10-2005-0024643 (2005-03-01), None
patent: 2005-059519 (2005-06-01), None
International Search Report for International Application No. PCT/KR2007/004996 dated Jan. 14, 2008 by Korean Intellectual Property Office.
Knobbe Martens Olson & Bear LLP
KT Corporation
Shedrick Charles
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