Adaptive VCP control in integrated services networks
First Claim
1. A method of establishing call connections for information transmission between a multiplicity of subscribers as components of traffic in an integrated services network (ISN), in which subscribers are located at endpoint nodes of the ISN, the ISN includes transit nodes interconnecting separate links of the ISN, and the information traffic consists of a multiplicity of media types according to the different subscribers including voice, video and data traffic component types, said method comprising the steps ofestablishing call connections as virtual circuits (VCs) between subscribers among the various endpoint nodes of said ISN as necessary to accommodate desired information transmissions,assembling a plurality of traffic component types, in the form of portions of information streams to be transmitted from subscribers at an endpoint node of said ISN to subscribers at others of said endpoint nodes during respective call connections between subscribers, into each of a sequence of composite frames of variable size for transmission through the ISN,limiting the traffic component types assembled into any given one of said composite frames at one endpoint node to those destined for subscribers at the same one of other endpoint nodes of the ISN, so that each composite frame is transmitted between a fixed pair of the endpoint nodes,anchoring a logical connection at each endpoint node of said pair as a virtual circuit path (VCP) between said pair of endpoint nodes to accommodate a multiplicity of VCs therebetween, andshifting the location of the anchor of a VCP at an endpoint node to adapt to changes in the flow of information traffic for subscribers thereat.
1 Assignment
0 Petitions
Accused Products
Abstract
Method and system for establishing call connections for information transmission between a multiplicity of subscribers as components of traffic in an integrated services network (ISN), in which plural subscribers are located at different endpoint nodes of the ISN, the ISN includes transit nodes interconnecting separate links of the ISN, and the information traffic consists of a multiplicity of media types according to the different subscribers including voice, video and data traffic component types. Call connections are established as virtual circuits (VCs) between subscribers among the various endpoint nodes of the ISN as necessary to accommodate desired information transmissions. A plurality of traffic component types in the form of portions of information streams to be transmitted from subscribers at an endpoint node of the ISN to subscribers at others of the endpoint nodes during respective call connections between subscribers, are assembled into each of a sequence of composite frames of variable size for transmission through the ISN, with each composite frame transmitted between a fixed pair of the endpoint nodes. A logical connection is anchored at each endpoint node of the pair as a virtual circuit path (VCP) between them to accommodate a multiplicity of VCs therebetween. The location of the VCP anchor is shifted at the endpoint node to adapt to changes in the information traffic pattern for subscribers thereat.
106 Citations
29 Claims
-
1. A method of establishing call connections for information transmission between a multiplicity of subscribers as components of traffic in an integrated services network (ISN), in which subscribers are located at endpoint nodes of the ISN, the ISN includes transit nodes interconnecting separate links of the ISN, and the information traffic consists of a multiplicity of media types according to the different subscribers including voice, video and data traffic component types, said method comprising the steps of
establishing call connections as virtual circuits (VCs) between subscribers among the various endpoint nodes of said ISN as necessary to accommodate desired information transmissions, assembling a plurality of traffic component types, in the form of portions of information streams to be transmitted from subscribers at an endpoint node of said ISN to subscribers at others of said endpoint nodes during respective call connections between subscribers, into each of a sequence of composite frames of variable size for transmission through the ISN, limiting the traffic component types assembled into any given one of said composite frames at one endpoint node to those destined for subscribers at the same one of other endpoint nodes of the ISN, so that each composite frame is transmitted between a fixed pair of the endpoint nodes, anchoring a logical connection at each endpoint node of said pair as a virtual circuit path (VCP) between said pair of endpoint nodes to accommodate a multiplicity of VCs therebetween, and shifting the location of the anchor of a VCP at an endpoint node to adapt to changes in the flow of information traffic for subscribers thereat.
-
13. A method of multiplexing call connections for information transmission between a multiplicity of subscribers in a data communication network, in which the subscribers are located at endpoint nodes of the network, the network includes transit nodes interconnecting separate links thereof, and the information traffic consists of a multiplicity of information streams generated by the various subscribers, said method comprising the steps of
establishing call connections as virtual circuits (VCs) between subscribers among the various endpoint nodes of the network as necessary to accommodate desired information transmissions, anchoring a logical connection at each endpoint node of a fixed pair of the endpoint nodes as a virtual circuit path (VCP) between said pair of endpoint nodes to accommodate the multiplexing of a multiplicity of VCs therebetween, and shifting the location of the anchor of a VCP at an endpoint node to adapt the multiplexing of VCs to predetermined changes in the information traffic pattern for subscribers thereat.
-
22. A system for multiplexing call connections for information transmission between a multiplicity of subscribers in a data communication network, in which the subscribers are located at different endpoint nodes of the network, the network includes transit nodes interconnecting separate links thereof, and the information traffic consists of a multiplicity of information streams generated by the various subscribers, said system comprising:
-
means at each endpoint node for establishing call connections as virtual circuits (VCs) between subscribers at that endpoint node and other endpoint nodes of the network as necessary to accommodate desired information transmissions, means at each endpoint node for anchoring a logical connection thereat with another endpoint node as a virtual circuit path (VCP) between that pair of endpoint nodes to accommodate the multiplexing of a multiplicity of VCs therebetween, and means responsive to predetermined changes in the information traffic pattern for subscribers at each endpoint node for adaptively shifting the location of the anchor of a VCP thereat to optimize the multiplexing of VCs to said changes. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
-
Specification