Migration of routing number selection to the base station...

H - Electricity – 04 – Q

Patent

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Details

H04Q 7/24 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2272069

Responsive to receipt at an originating switching node (52(1)) of an incoming call (200), a location request (send routing) message (202) is sent to the home location register (60) for the called mobile station (54(1)). A routing request (provide roaming) message (204) is then sent from the home location register to the switching node (52(2)) identified by the home location register as currently serving the called mobile station. The serving switching node then sends a routing number request message (208) to the base station controller (64(2)) currently serving the called mobile station. The base station controller then assigns an appropriate one of its routing numbers (218), and responds (220, 222) back to the originating switching node via the home location register and the visited switching node with the assigned routing number. The assigned routing number is then used to establish a trunk connection (224) between the originating switching node and the base station controller for purposes of effectuating call delivery. Alternatively, the serving switching node makes the selection of the base station controller assigned routing number (218').

En réaction à la réception d'un appel entrant (200) au niveau d'un noeud de commutation d'origine (52(1)), un message de demande d'emplacement (send routing) (202) est envoyé à l'enregistreur de position de rattachement (Home Location Register) (60) correspondant à la station mobile appelée (54(1)). Un message de demande d'acheminement (provide roaming) est alors envoyé de l'enregistreur de position de rattachement à destination du noeud de commutation (52(2)) identifié par le l'enregistreur de position de rattachement comme desservant actuellement la station mobile appelée. Ce noeud envoie alors au contrôleur de station de base (64(2)) desservant actuellement la station mobile appelée un message de demande de numéro d'acheminement (208). Le contrôleur de station de base affecte alors l'un de ses numéros d'acheminement appropriés (218), et réagit en renvoyant au noeud de commutation d'origine, via l'enregistreur de position de rattachement et le noeud de commutation visité, le numéro d'acheminement affecté. Ce numéro d'acheminement affecté sert alors, pour les opérations de remise de l'appel, à l'établissement de la liaison longue distance (224) entre le noeud de commutation d'origine et le contrôleur de stations de base. Une autre solution consiste à laisser le noeud de commutation serveur sélectionner le numéro d'acheminement (218') affecté au contrôleur de station de base.

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