Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2005-05-31
2008-07-15
Le, Danh C (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S331000, C370S329000, C455S439000, C455S436000
Reexamination Certificate
active
07400604
ABSTRACT:
Provided is a probing method for handoff including constructing a group of neighbor access points of a current access point with which the station associated, generating subgroups of the neighbor access points by the channel assigned to the access points, probing the access points by subgroup in a subgroup selection order, and selecting the neighbor access point having best link quality as a target access point to handoff. The probing method of the present invention is implemented with a novel non-overlap graph for constructing the neighbor graph such that the probing latency is dramatically reduced, resulting in reduction of handoff delay.
REFERENCES:
patent: 2003/0069018 (2003-04-01), Matta et al.
patent: 2003/0203735 (2003-10-01), Andrus et al.
patent: 2004/0219918 (2004-11-01), Kakishima et al.
patent: 2005/0138178 (2005-06-01), Astarabadi
patent: 2006/0099952 (2006-05-01), Prehofer
Arbaugh William Albert
Jang Kyung-Jun
Lee In-Sun
Mishra Arunesh
Shin Min-Ho
Le Danh C
McNeely Bodendorf LLP
Samsung Electronics Co,. Ltd.
The University of Maryland College Park
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