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WO1999063779A1 - Reduction d'une communication superflue avec un registre de localisation nominal d'un systeme cellulaire - Google Patents

Reduction d'une communication superflue avec un registre de localisation nominal d'un systeme cellulaire Download PDF

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Publication number
WO1999063779A1
WO1999063779A1 PCT/SE1999/000874 SE9900874W WO9963779A1 WO 1999063779 A1 WO1999063779 A1 WO 1999063779A1 SE 9900874 W SE9900874 W SE 9900874W WO 9963779 A1 WO9963779 A1 WO 9963779A1
Authority
WO
WIPO (PCT)
Prior art keywords
location register
subscriber
profile
mobile
switching center
Prior art date
Application number
PCT/SE1999/000874
Other languages
English (en)
Inventor
Claes Wikström
Magnus Lindgren
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Priority to AU46628/99A priority Critical patent/AU753787B2/en
Priority to BR9910882-8A priority patent/BR9910882A/pt
Priority to CA002334284A priority patent/CA2334284A1/fr
Publication of WO1999063779A1 publication Critical patent/WO1999063779A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/06—Registration at serving network Location Register, VLR or user mobility server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data

Definitions

  • the present invention relates in general to the mobile telecommunications field and, in particular, to a method and system for reducing unnecessary communication with and signalling to and from a Home Location Register (HLR) in a cellular radiotelephone system
  • HLR Home Location Register
  • an HLR is a network database that contains, among other things, information related to the current location of subscribers' mobile phones independently of the subscribers' actual locations
  • the MSC Mobile Services Switching Center
  • the MSC sends a location request message 14 to the HLR 16 for that phone
  • PSTN Public Switched Telephone Network
  • ISDN Integrated Services Digital Network
  • PDN Public Data Network
  • the call can be a "local" call that is placed from another mobile phone in the same cellular network
  • the HLR 16 can send a routing request message 18 to the appropriate MSC (12) to route the call to a cell where the phone 22 is currently located
  • the MSC 12 can direct its associated base station transmitters to broadcast a page message 20 for the phone 22 If the paged phone 22
  • MSC-originated e g , "local" calls
  • the VLR associated with that MSC is checked to determine if that subscriber's information is already maintained in the VLR database If so, the MSC can route the call to the subscriber's mobile phone via a base station transmitter associated with that VLR
  • An important technical advantage of the present invention is that the number of accesses required with the HLR is significantly reduced
  • FIGURE 1 is a time sequence diagram that illustrates a simplified signalling sequence for a conventional MSC-originated call
  • FIGURE 2 is a time sequence diagram that illustrates a signalling sequence that can be used for MSC-originated and/or local cellular calls, in accordance with the preferred embodiment of the present invention.
  • FIGURE 3 is a simplified block diagram that illustrates a cellular system that can be used to implement a preferred embodiment of the present invention
  • FIGURES 1-3 of the drawings like numerals being used for like and corresponding parts of the various drawings
  • the complete profile for that subscriber is transferred to the VLR associated with the MSC (or MSC/WOS) involved
  • the VLR associated with that MSC is checked to determine if the subscriber's location information is already maintained in that VLR If so, the MSC can page the subscriber's mobile phone and set up the call via the base station transmitter associated with that VLR
  • the MSC can page the subscriber's mobile phone and set up the call via the base station transmitter associated with that VLR
  • FIGURE 2 is a time sequence diagram that illustrates an exemplary method 100 for reducing unnecessary communications with, and signalling to and from, an HLR in a cellular system, in accordance with a preferred embodiment of the present invention.
  • the exemplary method is described with respect to the Pan- European Global System for Mobile Communications (GSM) 200 as illustrated in FIGURE 3, but the invention is not intended to be so limited and can also be implemented in such cellular systems as the North American Digital-Advanced Mobile Phone System (D-AMPS), Personal Digital Cellular (PDC) System in Japan, AMPS, WOS, Fixed Cellular System, or any other appropriate cellular system that utilizes an HLR or similar functioning network node.
  • D-AMPS North American Digital-Advanced Mobile Phone System
  • PDC Personal Digital Cellular
  • WOS Wireless Cellular System
  • Fixed Cellular System or any other appropriate cellular system that utilizes an HLR or similar functioning network node.
  • a subscriber's mobile station (MS) 222 initially registers with a network HLR 204 via an MSC (or an MSC/WOS) 206 over a radio air interface as shown in FIGURE 3.
  • the MSC (or MSC/WOS) 206 sends a registration notification message to the HLR 204 using a Mobile Application Part (MAP) Signalling System 7 (SS7) protocol (or, for example, using an IS-41 signalling protocol for a D-AMPS).
  • MAP Mobile Application Part
  • SS7 Mobile Application Part
  • the HLR 204 sends a (MAP) message to the MSC (or MSC/WOS) 206 that includes a complete profile for the subscriber and MS 222 involved.
  • the profile includes at least the most current location information for the MS 222 involved.
  • the MSC (or MSC/WOS) 206 forwards the subscriber profile to the Visited Location Register (VLR) 207 associated with that MSC.
  • VLR Visited Location Register
  • an MSC and VLR can be integrated physically, but they can be viewed as two logically separated nodes.
  • the VLR 207 associated with the MSC (or MSC/WOS) 206 that covers the subscriber's MS 222 now maintains in its database that subscriber's profile information.
  • this procedure is followed for each MS (and subscriber) that registers with the MSC (or MSC/WOS) 206.
  • a similar procedure is followed for the MSs 224 and 226, and the MSC (or MSC/WOS) 208 that covers their location areas.
  • the MSC 206 (step 120) interrogates the database in the associated VLR 207 to determine whether the called MS's 222 profile information is stored there at that time. If so, at step 122, the MSC (or MSC/WOS) 206 can direct its base station transmitters (210, 212, 214) to broadcast a page message directly for reception by the called MS 222, without having to interrogate the HLR 204 for the MS's location information. In this way, the present invention thus reduces unnecessary communication with, and signalling to and from, the HLR 204, which is especially advantageous for the emerging high density, local mobile-to-mobile call environments, such as, for example, in WOS and Fixed Cellular systems.
  • the subscriber's authentication information (e.g., Shared Secret Data or SSD) can also be transferred to the VLR 207 associated with the MSC (or MSC/WOS) 206 in the same MAP message. In this way, at call set up, there is no need to interrogate the HLR for the authentication information.
  • the VLRs e.g., 206, 209, etc.
  • the subscriber's authentication information can request the subscriber's authentication information from the HLR 204 in a new MAP message.
  • the terminating profile for the subscriber can be added to the profile message in the MAP message sent from the HLR 204 to the VLR(s). Consequently, at call set up, there is no need to interrogate the HLR for the terminating profile information.
  • the VLRs e.g., 206, 209, etc.
  • the location information can be included in the subscriber's terminating profile.
  • the HLR can reject the VLR's request for the terminating subscriber profile.
  • the MSC by transferring subscriber profile information (including at least the most current location information for the pertinent MS) from the HLR to the VLR associated with the MSC covering the MS at registration, for a local or MSC-originated call to that MS, the MSC can first check with its associated VLR, and if the MS is "registered" with that VLR, then page and route the call directly to the MS without having to interrogate the HLR. Otherwise, the call can be set up according to conventional procedures (i.e., interrogating the HLR for location information).

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  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de réduction des communications avec un registre de localisation nominal HLR (204) et de signalisation de et vers ce registre pour les appels locaux ou provenant du centre de commutation de services mobiles MSC (118). Dans le cas d'un registre abonné (114) et du registre de localisation nominal (204), le profil complet de cet abonné est transféré (116) au registre de localisation occasionnel VLR (207) associé au MSC (206) (ou MSC/WOS) impliqué. Lorsqu'un appel (118) destiné à l'abonné émane du MSC (206), le registre de localisation occasionnel (207) associé au MSC (206) est vérifié (102) en vue de déterminer si les informations de localisation de l'abonné sont déjà conservées dans le VLR (207). Si c'est le cas, le MSC (206) peut rechercher (122) et acheminer l'appel jusqu'au téléphone mobile de l'abonné via (222) l'émetteur de station de base (210, 212, 214) associé au VLR (207). Ainsi, pour de tels appels émanant du MSC local (118), il est superflu d'interroger le HLR (204) pour les informations abonné, ce qui permet de réduire la signalisation de et vers le HLR (204).
PCT/SE1999/000874 1998-06-04 1999-05-21 Reduction d'une communication superflue avec un registre de localisation nominal d'un systeme cellulaire WO1999063779A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU46628/99A AU753787B2 (en) 1998-06-04 1999-05-21 Reducing unnecessary communication with a home location register in a cellular system
BR9910882-8A BR9910882A (pt) 1998-06-04 1999-05-21 Processo e sistema para reduzir comunicação desnecessária com um registrador de localização doméstica em um sistema celular.
CA002334284A CA2334284A1 (fr) 1998-06-04 1999-05-21 Reduction d'une communication superflue avec un registre de localisation nominal d'un systeme cellulaire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9070898A 1998-06-04 1998-06-04
US09/090,708 1998-06-04

Publications (1)

Publication Number Publication Date
WO1999063779A1 true WO1999063779A1 (fr) 1999-12-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1999/000874 WO1999063779A1 (fr) 1998-06-04 1999-05-21 Reduction d'une communication superflue avec un registre de localisation nominal d'un systeme cellulaire

Country Status (4)

Country Link
AU (1) AU753787B2 (fr)
BR (1) BR9910882A (fr)
CA (1) CA2334284A1 (fr)
WO (1) WO1999063779A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001050801A1 (fr) * 1999-12-29 2001-07-12 Nokia Corporation Gestion des informations relatives aux abonnes dans un reseau de communication mobile
WO2002071783A1 (fr) * 2001-03-05 2002-09-12 Nokia Corporation Procede pour autoriser un trafic de groupe sur un reseau de telecommunication et changement de reseau de telecommunication
US6993577B2 (en) 2000-12-20 2006-01-31 Comverse, Inc. System and method for migration of subscriber data

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0462728A2 (fr) * 1990-06-18 1991-12-27 Nortel Networks Corporation Communications mobiles
WO1992022174A1 (fr) * 1991-06-06 1992-12-10 Nokia Telecommunications Oy Procede permettant d'etablir une communication d'arrivee au poste radiotelephonique mobile d'un reseau telephonique mobile cellulaire
EP0544448A2 (fr) * 1991-11-27 1993-06-02 AT&T Corp. Dispositif de mise en oeuvre d'un enregistreur de localisation pour visiteurs dans un système de commutation pour télécommunications mobile-cellulaires
WO1995009514A1 (fr) * 1993-09-28 1995-04-06 Nokia Telecommunications Oy Reseau de telecommunications
WO1996037080A1 (fr) * 1995-05-17 1996-11-21 Mci Communications Corporation Procede et systeme pour la realisation amelioree d'appels dans des applications de mobilite en telecommunications

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0462728A2 (fr) * 1990-06-18 1991-12-27 Nortel Networks Corporation Communications mobiles
WO1992022174A1 (fr) * 1991-06-06 1992-12-10 Nokia Telecommunications Oy Procede permettant d'etablir une communication d'arrivee au poste radiotelephonique mobile d'un reseau telephonique mobile cellulaire
EP0544448A2 (fr) * 1991-11-27 1993-06-02 AT&T Corp. Dispositif de mise en oeuvre d'un enregistreur de localisation pour visiteurs dans un système de commutation pour télécommunications mobile-cellulaires
WO1995009514A1 (fr) * 1993-09-28 1995-04-06 Nokia Telecommunications Oy Reseau de telecommunications
WO1996037080A1 (fr) * 1995-05-17 1996-11-21 Mci Communications Corporation Procede et systeme pour la realisation amelioree d'appels dans des applications de mobilite en telecommunications

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001050801A1 (fr) * 1999-12-29 2001-07-12 Nokia Corporation Gestion des informations relatives aux abonnes dans un reseau de communication mobile
US6993577B2 (en) 2000-12-20 2006-01-31 Comverse, Inc. System and method for migration of subscriber data
WO2002071783A1 (fr) * 2001-03-05 2002-09-12 Nokia Corporation Procede pour autoriser un trafic de groupe sur un reseau de telecommunication et changement de reseau de telecommunication

Also Published As

Publication number Publication date
BR9910882A (pt) 2001-03-06
AU753787B2 (en) 2002-10-31
AU4662899A (en) 1999-12-20
CA2334284A1 (fr) 1999-12-09

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