System and method for providing roaming incoming screening...

H - Electricity – 04 – W

Patent

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H04W 8/02 (2009.01) H04W 8/18 (2009.01) H04W 36/34 (2009.01) H04W 88/12 (2009.01)

Patent

CA 2343181

A system and method of controlling the delivery of an incoming call in a radio telecommunications network (100) based on the location of a roaming mobile subscriber (110). The radio telecommunications network includes a home (102A) network which comprises a Home Location Register (HLR) (104) and a Service Control Point (SCP) (106). The geographic area covered by the network comprises a plurality of regions, including the home area covered by the home network. Each of the regions comprises one or more service areas, each of which is served by a mobile switching center (MSC) having an identification indicator (MSCID). The plural MSCIDs are clustered into groups, each of which covers a corresponding region. The HLR (104) keeps a subscriber profile which (300A) includes a termination service trigger (305), in addition to keeping track of the subscriber's location. The SCP (106) includes a service profile record (300B) which comprises one or more call delivery/termination service options (390). The service profile record also stores an indication (306) for each group whether an incoming call is to be delivered to the mobile subscriber when roaming in the area or regions covered by the group. A gateway MSC (410) interrogates the home HLR (104) for the subscriber's location when an incoming call is received thereat. The HLR, in turn, depending upon the termination service trigger (305), queries the SCP (106) for appropriate call delivery options.

La présente invention concerne un système et un procédé permettant de contrôler l'acheminement d'un appel entrant dans un réseau de télécommunications radio (100) en fonction de la position d'un abonné mobile itinérant (110). Le réseau de télécommunications radio comprend un réseau local (102A) lui même composé d'un registre de localisation nominal (HLR) (104) et d'un point de commande de services (SCP) (106). La zone géographique couverte par le réseau comprend une pluralité de régions, dont la zone correspondant au réseau local. Chacune de ces régions comprend une ou plusieurs zones de service qui sont chacune desservies par un centre de commutation de services mobiles (MSC) assorti d'un indicatif (MSCID). Ces indicatifs sont constitués en groupes qui couvrent chacun une région. Le HLR (104) possède un article de l'abonné qui (300A) non seulement suit la position de l'abonné, mais comprend également un déclencheur de conclusion (305). Le SCP (106) comprend un article de profiles de services (300B) avec une ou plusieurs options concernant la remise/conclusion d'un appel (390). Pour chaque groupe, cet article de profils de service contient une indication (306) permettant de déterminer si un appel entrant doit être transmis à un abonné itinérant pendant ses déplacements dans la zone ou les régions couverts par ledit groupe. Une passerelle MSC (410) interroge le HLR (104) sur la position de l'abonné en cas de réception d'un appel entrant. Selon le déclencheur de conclusion (305), le HLR interroge à son tour le SCP (106) quant aux options appropriées de remise de l'appel.

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