Communications networks

Details Communications networks Communications networks

2011-03-15

2011-03-15

Harper, Kevin C (Department: 2462)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S252000

Reexamination Certificate

active

07907529

ABSTRACT:
In order to keep a pathway for time critical data packets (for example for VoIP calls) a dummy flow of data packets is established between a home hub router (20) and a broadband remote access server (25) being the first gateway to the IP network. Should a call be made from the telephone (23), the dummy flow is replaced for the duration of the call by the packets generated for the VoIP call. The dummy flow is adjusted by increasing or decreasing the number of data packets transmitted in order to ensure that a minimum bandwidth having a tolerable delay is available. The dummy flow works by causing non time critical (i.e. P2P data packet flows) to back off and no modification is required to routers and the like incorporated into the network.

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Akyildiz et al. “Research Issues for Transport Protocols in Satellite IP Networks” IEEE Personal Communications, IEEE Communications Society, US, vol. 8, No. 3, Jun. 2001 pp. 44-48, XP011092115.
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Tang et al. “RCS: A Rate Control Scheme for Real-Time Traffic in Networks with High Bandwidth-Delay Products and High Bit Error Rates” The Conference on Computer Communications. 20thAnnual Joint Conference of the IEEE Computer and Communications Societies. Anchorage, AK, Apr. 22-26, 2001, vol. 1 of 3. Conf. 20, pp. 114-122, XP010538691.
Akyildiz et al. “Research Issues for Transport Protocols in Satellite IP Networks” IEEE Personal Communications, IEEE Communications Society, US, vol. 8, No. 3, Jun. 2001 pp. 44-48, XP011092115.

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