Method and apparatus for controlling quality of service in...

H - Electricity – 04 – L

Patent

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H04L 12/56 (2006.01) H04J 3/14 (2006.01)

Patent

CA 2276381

A switching node (15, 16, 17 or 20) for an ATM network (10) can selectively implement one of a plurality of call transforming procedures. The switching node (15, 16, 17, or 20) stores characteristics of each connected communications link (22 or 24) in a virtual connection and determines, for any ATM message the quality of service requirements for a particular transfer over a virtual connection. The selection of a call transferring process is based upon minimizing a particular potential error. Decisions concerning the implementation of correction procedures and the capability of the virtual connection to accommodate these requirements are made on a link-by-link basis.

La présente invention porte sur un noeud de commutation (15, 16, 17 ou 20) pour un réseau MTA, capable d'exécuter en mode sélectif toute une série de procédures de conversion d'appel. Le noeud de commutation (15, 16, 17 ou 20) garde en mémoire les caractéristiques de chaque liaison de télécommunications établie (22 ou 24) dans une connexion virtuelle et détermine, pour tout message ATM, les besoins en termes de qualité de services pour un transfert particulier via une connexion virtuelle. Le choix du mode de transfert d'appel est déterminé par le souci de minimiser un risque d'erreur donné. Les décisions concernant l'application des procédures de correction et la capacité de la connexion virtuelle d'intégrer ces besoins sont prises liaison par liaison.

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