Multiplex communications – Data flow congestion prevention or control – Flow control of data transmission through a network
Reexamination Certificate
2005-03-04
2009-06-30
Pham, Chi H (Department: 2416)
Multiplex communications
Data flow congestion prevention or control
Flow control of data transmission through a network
C370S282000, C370S389000, C370S392000, C370S394000, C370S432000
Reexamination Certificate
active
07554920
ABSTRACT:
A method and system for multicast network transmissions dynamically sets response time parameters for handling negative acknowledgments (NAKs). When the sender receives a NAK for a lost packet, it returns an NAK confirmation (NCF), waits for a back-off time before sending requested repair data, and then waits for a “linger time” during which the sender does not respond to other NAKs for the same lost packet. The back-off time and the linger time are dynamically set according to the position of the requested sequence number in the sender's transmit window such that the back-off time is shorter when the requested data is closer to being flushed out of the transmit window. After receiving the NCF, the receiver waits for a timeout period and resends the NAK if no repair data is received. The timeout period for data receipt is dynamically set according to a statistical average time for receiving repair data from the sender and the estimated sender's transmit window size.
REFERENCES:
patent: 6078568 (2000-06-01), Wright et al.
patent: 6112323 (2000-08-01), Meizlik et al.
patent: 6240092 (2001-05-01), Monch
patent: 6335933 (2002-01-01), Mallory
patent: 6466785 (2002-10-01), Chambert et al.
patent: 6581175 (2003-06-01), Crump et al.
patent: 6693907 (2004-02-01), Wesley et al.
patent: 6697365 (2004-02-01), Messenger
patent: 6807578 (2004-10-01), Satran et al.
patent: 6975599 (2005-12-01), Johnson et al.
patent: 7020714 (2006-03-01), Kalyanaraman et al.
patent: 7035258 (2006-04-01), Alam et al.
patent: 2003/0053469 (2003-03-01), Wentink
patent: 2003/0179707 (2003-09-01), Bare
Floyd Sally, “A Reliable Multicast Framework for Light-weight Sessions and Application Level Framing” IEEE/ACM Transactions on Networking, vol. 5, No. 6 Dec. 1997.
Speakman et al, “PGM Reliable Transport Protocol Specification” www.ietf.org. <draft-speakman-pgm-spec-06.txt> printed Feb. 3, 2003.
Petrova et al., “Pragmatic General Multicast(PGM)Reliable Transport Protocol Management Information Base(MIB)” ,<draft-petrova-pgmmib-00.txt>, Nov. 2000, pp. 1-80.
Alam Mohammad Shabbir
Bahl Pradeep
Koti Shirish R.
Faroul Farah
Microsoft Corporation
Pham Chi H
Wolf Greenfield & Sacks P.C.
LandOfFree
Method and system for dynamically adjusting transmit and... 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 system for dynamically adjusting transmit and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for dynamically adjusting transmit and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4148890