Point-to-multipoint connections

H - Electricity – 04 – Q

Patent

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Details

H04Q 3/42 (2006.01) H04L 12/12 (2006.01) H04L 12/16 (2006.01) H04Q 11/04 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2216318

This invention relates to distributive services in telecommunications networks, and in particular to methods for establishing point-to-multipoint connections and multipoint-to-point connections as well as to methods of releasing these types of connections. Program distribution to several subscribers (S3, S4) uses network resources in common along common call routes. A list (58) of potential program distribution points (D5, D6, D7) is created and a running index is associated with each one of the distribution points. Before a connection is set up to a subscriber (for example S4) the list is examined and a distribution point (D6) is selected from which a point-to-point connection (62) is set up to the subscriber. The running index is stepped up. The running index of a distribution point is stepped down during release of a connection (62) and is examined in connection with release of a call route section (61).

Cette invention porte sur des services de distribution dans des réseaux de télécommunication et notamment sur des procédés d'établissement de connexions point à multipoint et multipoint à point, ainsi que des procédés de libération de ces types de connexions. Une distribution de programme à plusieurs abonnés (S3, S4) fait appel à des ressources de réseau en commun sur des voies d'acheminement d'appel communes. On crée une liste de points (D5, D6, D7) de distribution de programme potentiels et l'on associe un index courant à chacun de ces points. Avant que ne soit établie une connexion avec un abonné (S4, par exemple), on examine cette liste et l'on choisit un point de distribution (D6) à partir duquel on établit une connexion point à point (62) avec l'abonné. L'index courant est incrémenté alors que l'index courant d'un point de distribution est décrémenté au cours de la libération d'une connexion (62) et qu'il est examiné conjointement à la libération d'un tronçon (61) d'une voie d'acheminement d'appel.

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