Synchronization and timing source priority in an ad-hoc network

Details Synchronization and timing source priority in an ad-hoc network Synchronization and timing source priority in an ad-hoc network

2007-03-28

2010-06-01

Chang, Kent (Department: 2617)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

C370S321000, C370S329000, C370S338000, C370S331000

Reexamination Certificate

active

07729336

ABSTRACT:
A bandwidth efficient and robust timing synchronization approach in an ad-hoc network is provided by a mobile ad-hoc network including at least one group of mobile nodes having at least one timing reference (TR) node. Mobile nodes include a controller and a wireless communications device cooperating therewith to generate and transmit timing synchronization beacons having a respective hop count indicating a number of hops to the at least one timing reference node, receive timing synchronization beacons from neighboring nodes, and synchronize node communication timing with neighboring nodes based upon the number of hops to the at least one timing reference node. The timing reference node may cooperate with the other mobile nodes based upon a timing source priority tree including levels defined by hop counts. The timing reference node is at a starting level of the timing source priority tree. The other nodes are at a higher level of the timing source priority tree than the starting level and correspond to the number of hops to the at least one timing reference node.

REFERENCES:
patent: 5699388 (1997-12-01), Wang et al.
patent: 5812547 (1998-09-01), Benzimra et al.
patent: 6466608 (2002-10-01), Hong et al.
patent: 6538600 (2003-03-01), Richton et al.
patent: 6542754 (2003-04-01), Sayers et al.
patent: 6546026 (2003-04-01), Goeddel
patent: 6594273 (2003-07-01), McGibney
patent: 6622022 (2003-09-01), Du
patent: 6751248 (2004-06-01), Tan
patent: 6785253 (2004-08-01), Du
patent: 6792247 (2004-09-01), Law et al.
patent: 6807165 (2004-10-01), Belcea
patent: 7027773 (2006-04-01), McMillin
patent: 7298716 (2007-11-01), Abraham et al.
patent: 2004/0005902 (2004-01-01), Belcea
patent: 2004/0190487 (2004-09-01), Biggs
patent: 2005/0088980 (2005-04-01), Olkkonen et al.
patent: 2006/0167784 (2006-07-01), Hoffberg
patent: 2007/0008947 (2007-01-01), Belcea
patent: 2008/0253327 (2008-10-01), Kohvakka et al.
patent: 2008/0291855 (2008-11-01), Bata et al.
patent: 2009/0122783 (2009-05-01), Tanaka et al.
patent: WO2006/056174 (2006-06-01), None
patent: WO2006/067271 (2006-06-01), None
De Oliveira et al., “Localization In Time And Space For Sensor Networks”, Advanced Networking And Applications, 2007. AINA '07. 21st International Conference ON, IEEE, PI, May 1, 2007, pp. 539-554.
Shang et al., “A Low Overhead Multi-Hop Time-Sync Protocol For Wireless Sensor Networks”, Networking, Sensing And Control, 2005, Proceedings. 2005 IEEE Tucson, AZ, USA, Mar. 19-22, 2005, Piscataway, NJ, USA, IEEE, Mar. 19, 2005, pp. 54-59.

Affiliated with

Also associated with

Rating

Synchronization and timing source priority in an ad-hoc network does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Synchronization and timing source priority in an ad-hoc network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchronization and timing source priority in an ad-hoc network will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4228421