US 5,359,593 A · Dynamic bandwidth estimation and adaptation for packet communications networks

Abstract

Access control for a packet communications network includes a dynamic bandwidth updating mechanism which continuously monitors the mean bit rate of the signal source and the loss probability of the connection. These values are filtered to remove noise and then used to test whether the values fall within a pre-defined acceptable adaptation region in the mean bit rate, loss probability plane. Values falling outside of this region trigger bandwidth updating procedures which, in turn, result in acquiring a new connection bandwidth, and determining new filter parameters and new parameters for a leaky bucket access mechanism.

Claims10

Dependent claims

A packet communications network comprising

a plurality of nodes,
means for interconnecting source nodes and destination nodes of establishing a connection for the transmission of digital packets of information from a source node to a destination node in said network, and
a dynamic access control mechanism,
said dynamic access control mechanism comprising
means for measuring the mean bit rate of signals from said source,
a leaky bucket control circuit for controlling the flow of said signals from said source into said network,
means for measuring the loss probability of packets introduced by said leaky bucket control circuit,
means for establishing limits on the values of simultaneous pairs of measurements from said means for measuring the mean bit rate and said means for measuring the loss probability, and
means responsive to a pair of said mean bit rate and loss probability measurements falling outside of said limits for modifying the bandwidth allocated to said connection.

6 more elements

Dependencies are inferred from the claim text.

Dynamic bandwidth estimation and adaptation for packet communications networks

Life of this patent

Dynamic bandwidth estimation and adaptation for packet communications networks

Life of this patent

Abstract

Claims10