Patent · US Expired

Process for the establishment of virtual connections passing through switching matrices of a multi-stage switching system

US4907220A · kind A · utility

17Cited by

3References

5Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Peter Rau · Leutenbach, DE
Andreas Foglar · Munich, DE
Herbert Schneider · Boulder, US

Key dates

Filing date	Feb 17, 1989
Grant date	Mar 6, 1990
Priority date	—
Expiry date	Feb 17, 2009

Classification

Technology area (CPC H)Electricity
CPC primaryH04L49/254
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

For the establishment of vertual connections passing through switching matrices of a multi-stage switching system, it is provided that upon the arrival of a call packet requesting the establishment of a virtual connection, a central control device identifies all the switching matrices involved in the connection to be established and determines setup information that must be assigned to each of them in order to establish the connection. This setup information is fed to the individual switching matrices from the central control device in a setup packet along the path of the virtual connection to be established.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.