Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Reexamination Certificate
2001-07-20
2009-11-17
Trost, IV, William (Department: 2416)
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
C370S235100, C370S395210, C370S468000
Reexamination Certificate
active
07619973
ABSTRACT:
An apparatus and a method for managing service traffic in a communications network capable of providing voice, data, and A/V services to a plurality of customers. In particular, the present invention is a digital subscriber line system (DSL), preferably based on ADSL, having a plurality of customer premise equipment (CPEs) coupled to voice, data and A/V services via network system equipment comprising a DSLAM, an ATM switch and a DSL terminator for connecting the system to the internet. The invention provides a network control system that includes a plurality of databases including a provisioning database and a real time database indicative of the actual bandwidth being utilized. A service control processor coupled to the plurality of databases and the network system equipment periodically polls the databases to determine the amount of bandwidth being used, and if the usage exceeds a predetermined level, throttles the internet data entering the system through the DSL terminator and/or the user data entering the system through the CPEs. Preferrably, throttling is performed using a leaky-bucket algorithm. By dynamically managing the traffic flow in the network, the present invention reduces the potential for dropped calls and similar service restrictions.
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Search report dated Feb. 19, 2002.
Richardson John William
Stahl Thomas Anthony
Chriss Andrew
Kiel Paul P.
Shedd Robert D.
Thomson Licensing
Trost, IV William
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