Multiplex communications – Data flow congestion prevention or control – Flow control of data transmission through a network
Reexamination Certificate
2008-06-10
2008-06-10
Ngo, Ricky Q. (Department: 2616)
Multiplex communications
Data flow congestion prevention or control
Flow control of data transmission through a network
Reexamination Certificate
active
07385923
ABSTRACT:
TCP congestion avoidance is implemented upon retransmission of a packet and is reverted back to the original congestion state upon receipt of an early acknowledgement (ACK), indicating reordering of packets, thereby eliminating a needless restriction on TCP bandwidth. Upon receiving an ACK to a retransmitted packet, it is determined if the ACK resulted from receipt of the original reordered packet or the retransmitted packet, based on the arrival time of the ACK at the sender. If the round-trip-time (RTT) for the retransmitted packet is much lower than the average or current calculated RTT for the network link between sender and receiver, then the retransmission occurred as a result of a reordering event, and the congestion window is restored back to its value prior to the retransmission, thereby permitting the network link to continue operating at its original increased throughput.
REFERENCES:
patent: 6252851 (2001-06-01), Siu et al.
patent: 6587875 (2003-07-01), Ogus
patent: 7046631 (2006-05-01), Giroux et al.
patent: 2002/0150048 (2002-10-01), Ha et al.
patent: 1 195 966 (2002-04-01), None
patent: WO 01/97446 (2001-12-01), None
Balakrishnan et al., A Comparison of Mechanisms for Improving TCP Performance over Wireless Links, IEEE/ACM Trasnsactions on Networking, Dec. 1997, pp. 756-769, vol. 5, No. 6.
Maruthi, Bhaskar, et al.,Interference Robust TCP, Research was supported in part by the NSF under grants NCR 9628165 and NCR 9796318 and by Nicholas Professorship at Iowa Sate University, pp. 1-8.
Hansen, Karen L.,CMPT Database: Making The Internet Satellite-Ready, Business Communications Review, n4, v27, Apr. 1997 p. 53(4), Copyright 1997 BCR Enterprises, Inc.
Akyildiz, Ian F., et al.,TCP-Peach: A New Congestion Control Scheme for Satellite IP Networks, IEEE/ACM Transactions on Networking, vol. 9, No. 3, Jun. 2001, pp. 307-321.
Baratakke Kavitha Vittal Murthy
Jain Vinit
Vallabhaneni Vasu
Venkatsubra Venkat
Dillon & Yudell LLP
International Business Machines - Corporation
Ngo Ricky Q.
Sinkantarakom Pao
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