VPI and VCI assignment system in ATM system
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United States of America Patent
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-
Aug 16, 1994
Grant Date -
N/A
app pub date -
Oct 22, 1992
filing date -
Oct 24, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a VPI and VCI assignment system in an ATM system having a plurality of nodes and terminals, each of the nodes including a conversion unit which generates ATM cells from data sent from one of the terminals, and a node management unit which manages a corresponding one of the nodes, a management unit assigns VPIs and VCIs to calls and manages information concerning VPIs and VCIs currently assigned to the calls and idle VPIs and VCIs. An assignment requesting unit, which is provided in each of the nodes and connected to the management unit, requests the management unit to assign a VPI and a VCI to a call received from one of the terminals. An assignment cancelling unit, which is provided in each of the nodes and connected to the management unit, requests the management unit to cancel the VPI and VCI assigned to the call in response to an end of a communication related to the call.
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