Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2007-09-18
2007-09-18
Nguyen, Lee (Department: 2618)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S350000, C455S041200
Reexamination Certificate
active
11249638
ABSTRACT:
A method and apparatus for synchronizing a node (200) within an ad-hoc communication system (100) is described herein. During operation all nodes periodically broadcast a synchronization beacon for other nodes to utilize for synchronization when a coordinating access point (node) is unavailable. A particular node's synchronization beacon will have an associated “tier” number that is incremented from the tier number of the beacon used to synchronize the particular node. In the absence of an access point, a node that joins the ad-hoc communication system will listen for synchronization beacons transmitted by other nodes. If synchronization beacons are heard, the node will synchronize with a beacon having a lowest tier. The node will then broadcast its own beacon having its tier number incremented from the lowest tier beacon heard.
REFERENCES:
patent: 6466608 (2002-10-01), Hong et al.
patent: 2004/0255001 (2004-12-01), Oh et al.
patent: 2007/0086426 (2007-04-01), Bonta et al.
R. Naik et al., “Distributed Sleep-Scheduling Protocols for Energy Conservation in Wireless Networks”, Proceedings of 28thHawaii International Conference on system Sciences, 2005-08.
Agree, J. et al.: Secure NOmadic Wireless Mesh (SnowMesh) 802.11 TGs ESS Mesh Networking Proposal, doc.: IEEE 802.11-05/596r1, May 15, 2005, pp. 1-56.
Proceedings of the 38th Hawaii International Conference on System Sciences—2005-08 Distributed Sleep-Scheduling Protocols for Energy Conservation in Wireless Networks.
Bonta Jeffrey D.
Calcev George
Michels James P.
Motorola Inc.
Nguyen Lee
LandOfFree
Method and apparatus for synchronizing a node within an... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for synchronizing a node within an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for synchronizing a node within an... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3776728