WO1998044716A1 - Procede de limitation des taxes d'appel dans un reseau de radiocommunication - Google Patents

Procede de limitation des taxes d'appel dans un reseau de radiocommunication Download PDF

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Publication number
WO1998044716A1
WO1998044716A1 PCT/SE1998/000520 SE9800520W WO9844716A1 WO 1998044716 A1 WO1998044716 A1 WO 1998044716A1 SE 9800520 W SE9800520 W SE 9800520W WO 9844716 A1 WO9844716 A1 WO 9844716A1
Authority
WO
WIPO (PCT)
Prior art keywords
call
subscriber
msc
hlr
time
Prior art date
Application number
PCT/SE1998/000520
Other languages
English (en)
Inventor
Viet Anh Nguyen
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 AU68599/98A priority Critical patent/AU6859998A/en
Publication of WO1998044716A1 publication Critical patent/WO1998044716A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/47—Fraud detection or prevention means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/88—Provision for limiting connection, or expenditure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/01—Details of billing arrangements
    • H04M2215/0116—Provision for limiting expenditure, e.g. limit on call expenses or account
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/01—Details of billing arrangements
    • H04M2215/0148—Fraud detection or prevention means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/32—Involving wireless systems

Definitions

  • This invention relates to radio telecommunication systems and, more particularly, to a method of limiting the amount of charges that can be incurred on a cellular subscriber's account.
  • Amarant primarily teaches an algorithm to calculate the debit.
  • Amarant however, describes a method that is suitable for a landline telephone system. Amarant does not teach or suggest a method of establishing a debit limit in a cellular telecommunication system, communicating the necessary information between nodes in the cellular system, and disconnecting calls that exceed the established debit limit.
  • Telia discloses an arrangement in a telephone system for controlling debiting of services.
  • Telia briefly describes a system that is suitable for a landline telephone system, but does not provide any details about how such a system would be implemented.
  • Telia does not teach or suggest a method of establishing a debit limit in a cellular telecommunication system, communicating the necessary information between nodes in the cellular system, and disconnecting calls that exceed the established debit limit.
  • Review of each of the foregoing references reveals no disclosure or suggestion of a system or method such as that described and claimed herein.
  • the present invention is a method of controlling fraud if a fraudulent user attempts to utilize a legitimate subscriber's mobile station to make calls that are too lengthy or too expensive.
  • the present invention enables cellular subscribers to set their own spending limits and, for example, to end a call when the toll reaches the subscriber's limit.
  • the present invention is a method in a radio telecommunication system of limiting charges on a subscriber's account to an available balance. The method begins by storing the available balance in the subscriber's home location register (HLR) and storing, in a subscriber profile in the subscriber's HLR, an instruction to monitor charges incurred by the subscriber's mobile station.
  • HLR home location register
  • the HLR determines the parameters of the call and converts the available balance to a time limit for the call. This is followed by instructing an Originating Mobile Switching Center (O-MSC) to time the call, and disconnecting the call if the call exceeds the time limit.
  • O-MSC Originating Mobile Switching Center
  • FIG. 1 is a message signaling diagram illustrating the flow of messages between affected nodes of a radio telecommunications network when the present invention is implemented for calls terminating at a mobile station operating in the network
  • FIG. 2 is a message signaling diagram illustrating the flow of messages between affected nodes of a radio telecommunications network when the present invention is implemented for calls originating at a mobile station operating in the network
  • FIG. 1 is a message signaling diagram illustrating the flow of messages between affected nodes of a radio telecommunications network when the present invention is implemented for calls terminating at a mobile station operating in the network
  • FIG. 2 is a message signaling diagram illustrating the flow of messages between affected nodes of a radio telecommunications network when the present invention is implemented for calls originating at a mobile station operating in the network
  • FIGS. 3A and 3B are a flow chart illustrating the steps of the method of the present invention when the present invention is implemented for calls originating at a mobile station operating in the network.
  • the present invention defines the signaling interface between nodes in a radio telecommunications network required to implement a method of limiting the charges on a subscriber's account to a preset limit.
  • the method of the present invention limits fraud if a fraudulent user attempts to make calls that are too lengthy or too expensive.
  • the method enables subscribers to set their own spending limits and, for example, to end a call when the toll reaches the subscriber's limit.
  • the operator or the subscriber may request that call charges or call lengths from the subscriber's mobile station be monitored. This information is stored in the subscriber profile (subscriber category) in the subscriber's home location register (HLR). A subscriber may request the monitoring service to ensure that he does not exceed a predetermined debit limit.
  • the operator may request the monitoring service whenever fraudulent usage is suspected. Any call originated from a subscriber's mobile station may be a fraudulent call.
  • an analysis of the dialed digits indicates whether the call is a local call or a long distance call. If it is a long distance call, it is more likely that the call is a target of fraud. Therefore, the method of the present invention may include a step that activates call monitoring only if the dialed digits analysis indicates that the call is a long distance call.
  • a timer in the Gateway Mobile Switching Center determines whether the call exceeds a predetermined length which is calculated based on the available balance in the subscriber's account. If so, the call is disconnected.
  • the system may optionally play an announcement notifying the subscriber of the reason that the call was disconnected.
  • the length of the call may be varied, depending on the applicable charge rate. For example, domestic long distance calls may be limited to 30 minutes while international long distance calls may be limited to 10 minutes.
  • FIG. 1 is a message signaling diagram illustrating the flow of messages between affected nodes of a radio telecommunications network when the present invention is implemented for calls terminating at a mobile station operating in the network.
  • a call 11 for the mobile station is first received in a Gateway Mobile Switching Center (G-MSC) 12.
  • G-MSC Gateway Mobile Switching Center
  • the G-MSC sends a Location Request (LOCREQ) Invoke message 13 to the subscriber's Home Location Register (HLR) 14.
  • the HLR sends a Routing Request (ROUTEREQ) Invoke message 15 to the Visited
  • V-MSC Location Register/Mobile Switching Center 16 where the mobile station is operating. In systems which support paging-befo re- routing, the V-MSC then pages the mobile station and receives a page response.
  • the V-MSC then sends a Routing Request (routereq) Return Result message 17 to the HLR 14.
  • the HLR checks the subscriber profile to determine whether the operator or the subscriber has requested that call charges or call lengths from the subscriber's mobile station be monitored. If call monitoring is activated, the HLR includes a new parameter (timer) in the Location Request (locreq) Return Result message 18 commanding the G-MSC to monitor the length of the call, and informing the G-MSC of the allowable length of the call. The operator or the subscriber may enter a debit limit, and the HLR calculates the allowable length of the call.
  • the call is then set up at 19 and monitored by the G-MSC 12. If the time period expires before the end of the call, the G-MSC 12 sends a
  • Notification Invoke message 21 to the HLR 14 indicating that the timer has expired.
  • the HLR sends a notification Return Result message 22 to the G-MSC ordering the G-MSC to disconnect the call.
  • the Notification Invoke message 21 and the notification Return Result message 22 are new IS-41 messages. Thereafter, an announcement may be played to the mobile subscriber with the reason for the disconnection. This announcement is currently played by the G-MSC 12, and the call is then disconnected.
  • FIG. 2 is a message signaling diagram illustrating the flow of messages between affected nodes of a radio telecommunications network when the present invention is implemented for calls originating at a mobile station operating in the network.
  • O- MSC originating MSC
  • ORIGREQ Origination Request
  • the HLR checks the subscriber profile to determine whether the operator or the subscriber has requested that call charges or call lengths from the subscriber's mobile station be monitored.
  • the HLR includes a new parameter (timer) in the Origination Request (origreq) Return Result message 34 commanding the O-MSC 31 to monitor the length of the call, and informing the O-MSC of the allowable call length.
  • the operator or the subscriber may enter a debit limit, and the HLR calculates the allowable length of the call.
  • the call is then set up at 35 and monitored by the O- MSC 31.
  • the call may be to another mobile station operating within the Public
  • PLMN Land Mobile Network
  • PSTN Public Switched Telephone Network
  • the O-MSC 31 sends a Notification Invoke message 37 to the HLR 33 indicating that the timer has expired.
  • the HLR sends a notification Return Result message 38 to the O-MSC ordering the
  • the Notification Invoke message 37 and the notification Return Result message 38 are new IS-41 messages. Thereafter, an announcement may be played to the mobile subscriber with the reason for the disconnection. This announcement is currently played by the O-MSC 31, and the call is then disconnected.
  • FIG. 3 is a flow chart illustrating the steps of the method of the present invention when the present invention is implemented for calls originating at a mobile station operating in the network.
  • the process begins at step 41 where it is determined whether the subscriber desires to set a debit limit for his account. If not, the process ends at 42. If the subscriber desires to set a debit limit, the process moves to step 43 where the subscriber requests that call charges from his mobile station be monitored. The subscriber also enters the allowable debit limit.
  • the process may also begin at step 44 where it is determined whether fraudulent usage of the subscriber's mobile station is suspected. If not, the process ends at 45. If fraudulent usage is suspected, the process moves to step 43 where the system operator requests that call charges from the subscriber's mobile station be monitored. The operator also enters an allowable debit limit.
  • the subscriber's HLR stores an instruction for call monitoring in the subscriber's profile (category).
  • the instruction includes the allowable debit limit.
  • the subscriber originates a call.
  • the operator may desire to implement the present invention only for long distance calls, which are more likely to be fraudulent. Therefore, at this point, the process may optionally determine whether the call is a long distance call. This may be accomplished in the HLR through an analysis of the dialed digits. If the call is not a long distance call, the process ends at 49. If the call is determined to be a long distance call (or if optional step 48 is not implemented), the process moves to step 51 where the HLR checks the subscriber profile for the call monitoring instruction and allowable debit limit.
  • the HLR determines a charge rate for the call and converts the available balance in the subscriber's account to a time limit for the call.
  • the charge rate may be determined from the time of day, the day of the week, the origin and the destination for the call, and applicable charge rate tables.
  • the time limit for the call may be calculated by dividing the available balance by the charge rate. The process then moves to FIG. 3B.
  • step 53 the HLR provides the time limit to the originating MSC (O-MSC), and instructs the O-MSC to time the call.
  • O-MSC originating MSC
  • the O-MSC times the call, and at 55, it is determined, while the call is in progress, whether the call is exceeding the time limit. If not, and the call ends before the time limit is exceeded, the process moves to step 56 where the O-MSC informs the HLR of the time utilized for the call.
  • the HLR converts the time utilized to a debit charge at 57, and updates the available balance in the subscriber profile at 58. The process then returns to step 47 and waits for the subscriber to originate another call.
  • step 61 the O-MSC informs the HLR that the time limit has expired.
  • the HLR instructs the O-MSC to disconnect the call at 62.
  • step 63 the O-MSC disconnects the call.
  • An announcement may be played to the subscriber at 64 notifying him of the reason for the disconnection.

Abstract

L'invention concerne un procédé dans un système de radiocommunication permettant de limiter les taxes d'un compte d'abonné à un solde disponible. Le procédé consiste à enregistrer le solde disponible dans l'enregistreur de localisation nominal (ELN) (14, 33) de l'abonné et à enregistrer, dans un profil abonné de l'ELN de l'abonné, une instruction demandant la surveillance des taxes dépensées par la station mobile de l'abonné, cette instruction contenant le solde disponible du compte de l'abonné. L'ELN détermine le taux de taxation de n'importe quel appel de ou vers la station mobile de l'abonné, et convertit pour l'appel en question le solde disponible en une limite temps en divisant le solde disponible par le taux de taxation. Si l'abonné effectue un appel de départ, l'ELN (33) demande à un centre de commutation mobile de départ (O-MSC) (31), dans un message résultant du retour de demande d'émission (34), de mesurer la durée de l'appel. Si un appel d'arrivée est reçu pour l'abonné, l'ELN (14) demande à un MSC-passerelle (G-MSC) (12), dans un message résultant du retour de demande de localisation (18), de mesurer la durée de l'appel. Le MSC (passerelle ou départ) mesure alors la durée de l'appel. Si l'appel dépasse la limite de temps, le MSC envoie à l'ELN un message de demande de notification (21) indiquant que le délai imparti est expiré et l'ELN envoie au MSC un message résultant du retour de notification (22) lui demandant de déconnecter l'appel.
PCT/SE1998/000520 1997-04-01 1998-03-20 Procede de limitation des taxes d'appel dans un reseau de radiocommunication WO1998044716A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU68599/98A AU6859998A (en) 1997-04-01 1998-03-20 Method of limiting call charges in a radio telecommunications network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82998897A 1997-04-01 1997-04-01
US08/829,988 1997-04-01

Publications (1)

Publication Number Publication Date
WO1998044716A1 true WO1998044716A1 (fr) 1998-10-08

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Application Number Title Priority Date Filing Date
PCT/SE1998/000520 WO1998044716A1 (fr) 1997-04-01 1998-03-20 Procede de limitation des taxes d'appel dans un reseau de radiocommunication

Country Status (2)

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AU (1) AU6859998A (fr)
WO (1) WO1998044716A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000021273A2 (fr) * 1998-08-11 2000-04-13 Boston Communication Group, Inc. Systemes et procedes de pretaxation d'evenement de communication
GB2352932A (en) * 1999-07-31 2001-02-07 Ericsson Telefon Ab L M Charging control in a mobile telecommunications system
EP1168709A2 (fr) * 2000-06-30 2002-01-02 Kabushiki Kaisha Toshiba Système et procédé de contrôle de facturation
GB2365679A (en) * 2000-03-14 2002-02-20 Ericsson Telefon Ab L M Cost control in a mobile telecommunications system
US6633768B2 (en) 1998-12-23 2003-10-14 Nokia Corporation Restriction of communication duration in a telecommunications network

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993012606A1 (fr) * 1991-12-12 1993-06-24 Cellular Technical Services Company, Inc. Systeme d'information en temps reel destine a des telephones cellulaires
US5450477A (en) * 1991-10-31 1995-09-12 At&T Corp. Monitoring of charges debited to an account having an assigned limit
DE4414500A1 (de) * 1994-04-26 1995-11-02 Deutsche Telekom Mobil Verfahren zur Ermittlung von Teilnehmern eines Mobilfunknetzes mit übermäßigem Verkehrsaufkommen
EP0705019A2 (fr) * 1994-09-23 1996-04-03 AT&T Corp. ContrÔle et notification des frais d'appel
EP0746135A2 (fr) * 1995-05-30 1996-12-04 Siemens Aktiengesellschaft Méthode et système de surveillance de facturation d'appel dans un système radio mobile
US5592535A (en) * 1993-04-16 1997-01-07 Alcatel Sel Aktiengesellschaft Mobile-radio network with debit accounts

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5450477A (en) * 1991-10-31 1995-09-12 At&T Corp. Monitoring of charges debited to an account having an assigned limit
WO1993012606A1 (fr) * 1991-12-12 1993-06-24 Cellular Technical Services Company, Inc. Systeme d'information en temps reel destine a des telephones cellulaires
US5592535A (en) * 1993-04-16 1997-01-07 Alcatel Sel Aktiengesellschaft Mobile-radio network with debit accounts
DE4414500A1 (de) * 1994-04-26 1995-11-02 Deutsche Telekom Mobil Verfahren zur Ermittlung von Teilnehmern eines Mobilfunknetzes mit übermäßigem Verkehrsaufkommen
EP0705019A2 (fr) * 1994-09-23 1996-04-03 AT&T Corp. ContrÔle et notification des frais d'appel
EP0746135A2 (fr) * 1995-05-30 1996-12-04 Siemens Aktiengesellschaft Méthode et système de surveillance de facturation d'appel dans un système radio mobile

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000021273A2 (fr) * 1998-08-11 2000-04-13 Boston Communication Group, Inc. Systemes et procedes de pretaxation d'evenement de communication
WO2000021273A3 (fr) * 1998-08-11 2000-08-17 Boston Communication Group Inc Systemes et procedes de pretaxation d'evenement de communication
US6633768B2 (en) 1998-12-23 2003-10-14 Nokia Corporation Restriction of communication duration in a telecommunications network
GB2352932A (en) * 1999-07-31 2001-02-07 Ericsson Telefon Ab L M Charging control in a mobile telecommunications system
GB2352932B (en) * 1999-07-31 2003-10-08 Ericsson Telefon Ab L M Charging control in a mobile telecommunications system
GB2365679A (en) * 2000-03-14 2002-02-20 Ericsson Telefon Ab L M Cost control in a mobile telecommunications system
US6892063B2 (en) 2000-03-14 2005-05-10 Telefonaktiebolaget Lm Ericsson (Publ) Cost control in a telecommunications system
EP1168709A2 (fr) * 2000-06-30 2002-01-02 Kabushiki Kaisha Toshiba Système et procédé de contrôle de facturation
EP1168709A3 (fr) * 2000-06-30 2003-06-18 Kabushiki Kaisha Toshiba Système et procédé de contrôle de facturation

Also Published As

Publication number Publication date
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