Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2006-08-29
2006-08-29
Nguyen, Chau (Department: 2667)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S331000, C455S439000
Reexamination Certificate
active
07099283
ABSTRACT:
A method of estimating QoS for making a handoff trigger decision for a remote terminal in a wireless IP network is disclosed. At least a first and second probing packet is generated with an access router from a plurality of access points. The first and second probing packets are then sent from the access routers over a fixed core network having a plurality of routers to a correspondent access router and then back to the access routers. At least one collector packet is also generated and sent to follow the first and second probing packets to gather at least one predetermined QoS parameter from the routers after the first and second probing packets have left the routers. The QoS parameters are then processed with the access routers to make the handoff trigger decision preferentially along with layer two QoS parameters of the wireless hop.
REFERENCES:
patent: 5793976 (1998-08-01), Chen et al.
patent: 6466548 (2002-10-01), Fitzgerald
patent: 6594268 (2003-07-01), Aukia et al.
patent: 6704304 (2004-03-01), Gallagher et al.
patent: 6748433 (2004-06-01), Yaakov
patent: 6798745 (2004-09-01), Feinberg
patent: 6925063 (2005-08-01), Goldshtein et al.
Hać, A. and Peng, J. 2001. A two-phase combined QoS-based handoff scheme in a wireless ATM network. Int. J. Netw. Manag. 11, 5 (Sep. 2001), 309-330. DOI= http://dx.doi.org/10.1002
em.413.
Wu, J. C., Cheng, C., Ma, G., and Huang, N. 2001. Intelligent handoff for mobile wireless internet. Mob. Netw. Appl. 6, 1 (Jan. 2001), 67-79. DOI= http://dx.doi.org/10.1023/A:1009817921307.
Li, B., Xu, D., and Nahrstedt, K. 2001. Towards integrated runtime solutions in QoS-aware middleware. In Proceedings of the 2001 international Workshop on Multimedia Middleware (Ottawa, Ontario, Canada). M3W. ACM Press, New York, NY, 11-14. DOI= http://do.
Matthias Grossglauser, Jennifer Rexford,Traffic Measurement for Network Operations, ACM SIGCOMM 2001 tutorial, Aug. 2001.
SLAC,Passive and Active Monitoring on a High-performance Network, www.slac.stanford.edu/grp/scs
et/talk/pam-apr01/, 2001. 35 Power Point slides.
Kevin Lai, Mary Baker,Measuring Link Bandwidth Using a Deterministic Model of Packet Delay, Talk at ACM SIGCOMM 2000. 15 Power Point slides.
Van Jacobson,Pathchar Notes, htpp://www.caida.org/tools/utilities/others/pathchar/pathcharnotes.html, 1997.
Van Jacobson,Pathchar—A Tool to Infer Characteristics of Internet Paths, Presentation at Lawrence Berkeley National Laboratory, Apr. 1997.
Allen B. Downey,Using Pathchar to Estimate Internet Links Characteristics, In Proceedings of ACM SIGCOMM, 1999.
Constantinos Dovrolis, Parameswaran Ramanahan, David Moore,What do packet dispersion techniques measure?, IEEE Infocom 2001.
Mansour J. Karam, Fouad A. Tobagi,Analysis of the Delay and Jitter of Voice Traffic Over the Internet, In Proceedings of IEEE Infocom 2001.
Kevin Lai, Mary Baker,Measuring Link Bandwidths Using a Deterministic Model of Packet Delay, In Proceedings of ACM SIGCOMM, Aug. 2000.
Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON),The Signaling and Control of End-to-end Quality of Service in TIPHON Systems, Draft TS 101 329-3 v2.1.1, Technical Specification, Sep. 2000.
Kevin Lai, Mary Baker,Nettimer: A tool for Measuring Bottleneck Link Bandwidth, In proceedings of the 3rdUSENIX Symposium on Internet Technologies and Systems, Mar. 2001.
Matta Johnny M.
Takeshita Atsushi
Blakely , Sokoloff, Taylor & Zafman LLP
Dyke Kerri M.
Nguyen Chau
NTT Docomo Inc.
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