Multiplex communications – Data flow congestion prevention or control
Reexamination Certificate
2005-04-20
2010-10-26
Shah, Chirag G (Department: 2477)
Multiplex communications
Data flow congestion prevention or control
C370S395200, C370S517000
Reexamination Certificate
active
07821924
ABSTRACT:
A technique for avoiding spurious TCP timeouts through delay injection which requires no modification of, or access to, the TCP protocol itself. More particularly, injection of additional random delay or jitter at some point in a packet's roundtrip path across a wireless communications network is employed so as to increase the variance in round trip times, without significantly increasing the average value thereof. Spurious TCP timeouts are avoided through the artificial delay injection which occurs at a network element along the communications path and without modification of, or requiring access to, the TCP protocol. Further, the injection of artificial delay is applied on a transaction-by-transaction basis. That is, the decision to inject, or not inject, the artificial delay as well as the value of the injected delay are applied to each TCP connection or TCP flow.
REFERENCES:
patent: 6108314 (2000-08-01), Jones et al.
patent: 6131149 (2000-10-01), Lu et al.
patent: 6724732 (2004-04-01), Abrams et al.
patent: 7054268 (2006-05-01), Parantainen et al.
patent: 7283814 (2007-10-01), Klein et al.
patent: 2002/0080774 (2002-06-01), Griffith et al.
patent: 2002/0146016 (2002-10-01), Liu et al.
patent: 2003/0048791 (2003-03-01), De Cnodder et al.
patent: 2003/0053466 (2003-03-01), Bizet et al.
patent: 2003/0126282 (2003-07-01), Sarkar et al.
patent: 2006/0159057 (2006-07-01), Miyoshi
Martin, Nilsson, and Rhee, “Delay-Based Congestion Avoidance for TCP”, IEEE/ACM Transactions on Networking, vol. 11, No. 3 Jun. 2003, pp. 356-368.
Allman, M., et al., “On Estimating End-to-End Network Path Properties,” Sigcomm '99, Aug. 1999, pp. 263-274, Cambridge, MA, USA.
Leung, K.K., et al., “Methods to Improve TCP Throughput in Wireless Networks With High Delay Variability,” Proceedings of IEEE Vehicular Technology Conference, 5 pages, Sep. 2004.
Ekström, H., et al., “The Peak-Hopper: A New End-to-End Retransmission Timer for Reliable Unicast Transport,” 12 pages, IEEE INFOCOM 2004.
Yavuz, M. et al., “TCP over Wireless Links with Variable Bandwidth,” IEEE, pp. 1322-1327, 2002.
Fu, S., et al., “Effect of Delay Spike on SCTP, TCP Reno, and Eifel in a Wireless Mobile Environment,” IEEE, pp. 575-578, 2002.
Gurtov, A., “Effect of Delays on TCP Performance,” 18 pages.
Gurtov, A., et al., “Responding to Spurious Timeouts in TCP,” IEEE, pp. 2312-2322, 2003.
Gurtov, A., “Making TCP Robust Against Delay Spikes,” University of Helsinki, Department of Computer Science, Report C-2001-53, 14 pages, Nov. 2001.
Gurtov, A., et al., “Multi-Layer Protocol Tracing in a GPRS Network,” IEEE, pp. 1612-1616, 2002.
Korhonen, J., et al., “Measured Performance of GSM HSCSD and GPRS,” IEEE, pp. 1330-1334, 2001.
Leung, K.K., et al., “Methods to Improve TCP Throughput in Wireless Networks With High Delay Variability,” 5 pages.
Ludwig, R., et al., “The Eifel Algorithm: Making TCP Robust Against Spurious Retransmissions,” Computer Communication Review, pp. 30-36.
Haner Mark
Klein Thierry Etienne
Leung Kin K
Alcatel-Lucent USA Inc.
Finston Martin I.
Rivas Salvador E
Shah Chirag G
LandOfFree
Method and apparatus for timeout reduction and improved... 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 timeout reduction and improved..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for timeout reduction and improved... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4222507