Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2005-05-31
2005-05-31
Nguyen, Steven (Department: 2665)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C370S252000, C714S749000
Reexamination Certificate
active
06901081
ABSTRACT:
A method and device for determining a parameter (RTO) associated with a retransmission time-out feature in a data unit transmitter implementing a protocol (TCP) that provides an acknowledgment feature and a retransmission time-out feature, where according to one aspect decreasing values of the round trip time (RTT) are treated differently with respect to their influence on a mean deviation parameter (RTTVAR) than increasing values of the round trip time, where according to another aspect weight values (g, h, w) used in the determination of the parameter (RTO) are chosen such that at least one of them is time variable, and where according to a further aspect the parameter (RTO) is also calculated on the basis of a value (SR) indicative of the number of spurious time-outs in the communication.
REFERENCES:
patent: 5699511 (1997-12-01), Porcaro et al.
patent: 6405337 (2002-06-01), Grohn et al.
patent: 6473399 (2002-10-01), Johansson et al.
Stevens, “TCP/IP Illustrated, vol. 1, The Protocols”, Section 21.3, Addison Wesley 1994, pp. 299-301.
RFC 793, “Transmission Control Protocol, DARPA Internet Program Protocol Specification”, Sep. 1991.
DeSimone et al, “Throughput Performance of Transport-Layer Protocols Over Wireless LANs”, Proceedings of the Global Telecommunications Conference (Globecom), U.S., New York, IEEE, vol. —, 1993, pp. 542-549.
Tanenbaum, “Computer Networks”, Prentice-Hall International, Upper Saddle River, New Jersey, 1996, pp. 539-541.
Nguyen Steven
Nixon & Vanderhye P.C.
Telefonaktiebolaget LM Ericsson (publ)
Tran Thien
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