KR100924111B1 - Charging process system for outbound roaming service and method thereof - Google Patents

Abstract

Disclosed are a voice call charging processing system and an method thereof for an outbound overseas roaming service. In the outbound overseas roaming system according to the present invention, the method for processing voice calls is based on the MSISDN of the SIMN service subscriber's home network and the partner network for the SIMN service which assigns the major number in the home network and the minor number in the partner network. Exchanging MSISDN ranges of the service provider; creating a database of SIMN service and prepaid service subscribers based on the exchanged MSISDN range information; and if the SIMN service subscriber is in a partner network, Executing the logic of the prepaid amount service based on that. Here, the prepaid amount service is characterized by subtracting the voice call charge from the overseas roaming service in real time from the amount prepaid or set by the subscriber of the SIMN service.

International roaming, primary no., Secondary no., SIMN

Description

Charging process system for outbound roaming service and method thereof

The present invention relates to a method for processing voice call charging in an outbound overseas roaming service using a mobile communication terminal, and more particularly, a primary number assigned in a home network and a secondary number assigned in a partner network. equipment for an intelligent network of a home network in an outbound overseas roaming service using, for example, an overseas roaming voice call service only within a prepaid amount through control of a roaming service control point (RSCP). It relates to a voice call billing processing system and a method in an overseas roaming service that can be used.

Today, according to the overseas roaming service, mobile subscribers such as domestic wideband code division multiple access (WCDMA) access the domestic home network in a foreign country using the same mobile communication terminal, and various mobile communication services such as voice or video calls. Services, download / upload services for multimedia data, and wireless Internet services have become available.

In general, when a foreign roaming service subscriber accesses a domestic home network from a foreign country, the number excluding international call access number (1) + country code (82) + area code (010, 019, 02, 041, etc.) except 0 + Phone number (****-＃＃＃＃) 'and press the call button, you can use the call or messaging services. Alternatively, a "+" KEY may be used as an international call in a Global System for Mobile Telecommunication (GSM) / WCDMA network. That is, the called number except '+' + 'country number' + '0' should be entered. In addition, when a foreign roaming service subscriber accesses a foreign country's network from a foreign country, the user can use a call or a messaging service by pressing a 'region code + phone number' and then pressing a call button as in the domestic network service.

As such, when accessing a home network from an overseas network, the MSC (Mobile Switching Center) of the overseas network basically analyzes the called number, and the ISUP (ISDN User Part) is sent to the home network via the international circuit provider network of the overseas network. It is pulled in. When a call enters the ISUP to the home network, the MSC of the home network receives a routing number by querying the Mobile Location Part (MAP) to the Home Location Register (HLR), which manages the subscriber location of the called party number, and receives the routing number. The call is connected by ISUP processing back to the destination MSC.

In general, a subscriber's mobile terminal number is an IMSI (International Mobile Subscriber Identity) number managed by a USIM (Universal Subscriber, Identity, Module) card, etc., mounted on a mobile communication terminal, and an MSISDN (AMS) assigned to a subscriber terminal in a home network corresponding thereto. Recognition number uniquely determined for each subscriber's mobile communication terminal by Mobile Subscriber Integrated Service Digital Network (NOR) number.

In particular, the GSM / WCDMA mobile communication terminal can support multi-band (automatic roaming) is possible. A service for applying automatic roaming by assigning a plurality of MSISDN numbers to a single IMSI by using the characteristics of the mobile communication terminal of the GSM / WCDMA system has been developed, and the SIMN (Single IMSI Multiple Number) is one such service. .

That is, the SIMN service assigns a primary number in the home network in response to the IMSI of the subscriber mobile communication terminal, and assigns a secondary number in the partner network with a certain contractual relationship to apply to automatic roaming. do.

However, when a roamer uses a roaming service in an overseas network, the roamer is charged with a roaming charge that is different from the general billing in the home network. Such an overseas roaming billing system is more expensive than a billing system in a home network. Therefore, it is necessary for a roamer to pay a predetermined amount of prepaid amount and limit the roaming service to be available within the cost.

The present invention was devised to meet the above necessity, and prepaid by Romer through the control of RSCP in the outbound overseas roaming service using the major number assigned in the home network and the minor number assigned in the partner network. It is an object of the present invention to provide a voice call billing processing system and a method for an overseas roaming voice call service that can use an overseas roaming voice call service only within an amount.

Voice call billing processing system in the outbound overseas roaming service according to the present invention for achieving the above object, GLR (Gateway Location Register) to create a database for subscribers SIMN (Single IMSI Multiple Number) service and prepaid amount service ; And a roaming service control point (RSCP) for deducting a charge during the roaming period from a prepaid amount or a predetermined amount, when the mobile subscriber is a subscriber of the SIMN service and a subscriber of the prepaid amount service. The SIMN service is characterized by assigning a primary number in the home network and a secondary number in the partner network.

Voice call billing processing method in the outbound overseas roaming service according to the present invention for achieving the above object, SIMN service subscriber to the SIMN service to give the major number in the home network and the minor number in the partner network Exchanging an MSISDN range of the partner network with an MSISDN of the home network of; Creating a database for the SIMN service and the prepaid amount service subscriber based on the exchanged MSISDN range information; And when the SIMN service subscriber is in the partner network, executing logic of a prepaid money service based on a called number transmitted from the SIMN service subscriber, wherein the prepaid money service is performed by a subscriber of the SIMN service. It is characterized by subtracting the voice call charge from the overseas roaming service from the prepaid amount or the predetermined amount.

Preferably, the voice call billing processing method in the outbound overseas roaming service, MSISDN range of the exchanged SIMN service subscriber in the home network and partner network, and the prepaid amount or the predetermined amount Registering with RSCP; And registering by the Gateway Location Register (GLR) the SIMN service and the prepaid money service based on the information registered in the RSCP.

Preferably, the voice call charging processing method in the outbound overseas roaming service, GLR obtains the subscriber profile from the Home Location Register (HLR) based on the paging signal of the SIMN service subscriber, Determining whether to join; Transmitting, by the GLR, the subscriber profile to a Serving GPRS Support Node (SGSN) of the partner network when determined to be a subscriber of the prepaid amount service; And receiving, by the GLR, a response message from the SGSN of the partner network, wherein the RSCP updates subscriber location information based on the response message from the SGSN.

Preferably, the voice call charging method in the outbound overseas roaming service, the GLR obtains the subscriber profile from the HLR based on the LU (Location Update) request signal from the SGSN of the partner network, the prepaid amount Determining whether to subscribe to a service; Transmitting, by the GLR, the subscriber profile to a mobile switching center (MSC) of the partner network when determined to be a subscriber of the prepaid amount service; And receiving, by the GLR, a response message from the MSC of the partner network, wherein the RSCP updates subscriber location information based on the response message from the MSC.

In addition, the voice call charging processing method in the outbound overseas roaming service, the RSCP further comprises the step of searching for the outgoing GT based on the incoming signal transmitted from the subscriber, the RSCP to the retrieved outgoing GT It is desirable to execute the logic of the prepaid amount service based on this.

In addition, the voice call billing processing method in the outbound overseas roaming service, the RSCP further comprises the step of transmitting the FCI (Furnish Charging Information) to the MSC of the partner network.

Preferably, the voice call billing processing method in the outbound overseas roaming service, if the subscriber is a called party, the RSCP determines whether the mobile communication subscriber SIMN subscription and prepaid amount subscription; And when the subscriber is subscribed to a SIMN subscription and a prepaid amount service, the RSCP transmitting the FCI to a gateway mobile switching center (GMSC) of the partner network.

According to the present invention, the roamer pays a predetermined prepaid amount and can use the voice call service in overseas roaming only within the amount paid, thereby preventing the roaming service from being charged unnecessarily. .

Hereinafter, with reference to the accompanying drawings will be described in detail the voice call billing processing system and method in the outbound overseas roaming service according to the present invention.

Prior to the detailed description of the present invention, the mobile communication terminal in the present invention is a cellular phone, a PCS (Personal Communications Services phone), a synchronous / asynchronous IMT-2000 (International Mobile Telecommunication-2000) terminal. Notebook PCs, desktop PCs, Palm Personal Computers, PDAs, Personal Digital Assistants, Smart Phones, WAP phones It includes all communication devices such as wireless application protocol phones and mobile play-stations.

1 is a block diagram schematically illustrating a voice call charging processing system in an outbound overseas roaming service according to an embodiment of the present invention.

Referring to the drawings, the voice call charging processing system according to the present invention includes a partner network 100 and a home network 200.

Here, the partner network 100 is a network differentiated from other foreign third party networks (not shown) in agreement with the home network 200 in the overseas roaming service, a customer care billing system (CCBS) 110, A Serving GPRS Support Node (SGSN) 120, an MSC 130, and a Gateway Mobile Switching Center (GMSC) 140 are provided.

In addition, the home network 200 is a network to which a mobile communication terminal is subscribed, for example, as a KTF network in Korea, and includes a CCBS 210, an RSCP 220, a gateway location register 230, and an HLR 240. ).

CCBS (110, 210) is to manage the billing data generated in the partner network 100 and the home network 200, the CCBS 210 of the home network 200 from the CCBS 110 of the partner network (100) The billing data generated in the partner network 100 is received to manage billing data of the mobile terminal subscriber. In addition, when the mobile communication subscriber of the home network 200 is a subscriber of the prepaid amount service, the mobile communication subscriber manages the amount prepaid or pre-set by deducting the charge by the overseas roaming service. Here, the prepaid amount refers to the billing limit of the overseas roaming service, the amount paid in advance by the mobile communication subscriber, and the preset amount refers to the billing limit that the mobile subscriber can postpay in the overseas roaming service. Refers to the set amount.

For billing processing in the overseas roaming service, CCBS 110 of the partner network 100 and CCBS 210 of the home network 200 are the MSISDN range of the major number and the partner network in the home network 200 of the SIMN subscriber. Information about the MSISDN range of minor numbers in 100 is exchanged.

The SGSN 120 is also referred to as a packet switching support node, and is responsible for data packet delivery with a mobile station (MS) in a service area. In addition, SGSN 120 has functions such as packet routing and transmission, mobility management, logical link management, authentication and charging.

The MSC 130, also called a mobile switching center, provides a circuit switching service to a mobile communication subscriber by interworking with a fixed network. The MSC 130 configures an access point for user traffic between the mobile communication network and the general telephone network, and other mobile switching centers in the same or different mobile communication networks. The MSC 130 additionally tracks the location of the mobile subscribers and always moves. It has a hand-off feature that allows you to provide telephony services and to maintain communication services even when locations change.

GMSC 140, also known as a gateway mobile communication switching center, has an automatic tracking connection function that determines the VMSC and selects a call by referring to the location information stored in the HLR.

The RSCP 220 is an intelligent network device that controls overseas roaming service. When the subscriber of the SIMN service is in the partner network 100, the RSCP 220 updates the subscriber information based on the paging signal from the subscriber. In addition, when the SIMN service subscriber transmits the called number from the partner network 100 to the home network 200, the RSCP 220 searches for the originating GT and executes logic of the prepaid amount service. Here, GT is a value similar to IP (Internet Protocol) as a value for routing in a signaling connection control part (SCCP) layer. In addition, the logic of the prepaid amount service is to deduct the billing of the overseas roaming service from the amount prepaid or pre-set by the subscriber of the prepaid amount service, and perform the billing of the overseas roaming service within the remaining amount. Refers to the logic of balance monitoring and billing calculation.

The GLR 230 is also called a gateway location register, and performs the function of the HLR with respect to the partner network. In addition, the GLR 230 generates a database of SIMN subscribers based on the MSISDN range information of the SIMN subscriber between the CCBS 110 of the partner network 100 and the CCBS 210 of the home network 200.

The HLR 240, also called a home location register, is a database of mobile subscribers having subscriber terminal information, subscription information, location information, authentication functions, and the like in a mobile communication switch.

FIG. 2 is a flowchart illustrating a database generation process by the GLR in the voice call charging processing method by the voice call charging processing system in the outbound overseas roaming service of FIG. 1.

Referring to FIG. 2, the CCBS 110 of the partner network 100 and the CCBS 210 of the home network 200 may have an MSISDN range in the partner network 100 of the SIMN service subscriber and an MSISDN in the home network 200. The information on the range is exchanged (S101). The SIMN service assigns two MSISDN numbers corresponding to one IMSI. In this case, the MSISDN number assigned from the home network 200 is called a primary number, and the MSISDN number assigned from the partner network 100 is provided. Is called the secondary number. The CCBS 110 of the partner network 100 and the CCBS 210 of the home network 200 exchange information on the range of MSISDN used in each network.

The CCBS 210 of the home network 200 transmits information on the prepaid amount service to the RSCP 220 along with information on the MSISDN of the International Mobile Station Identity (IMSI) / major number and the MSISDN of the minor number. To register the service (S102). That is, the RSCP 220 registers and stores the information on the MSISDN of the major number of the IMSI / home network 200 and the information on the minor number of the partner network 100 (S103), and the partner network 100. The CCBS 110 and the notification of the service registration with each other (S104), the GLR 230 of the home network 200 also registers the information about the SIMN service and prepaid amount service (S105).

The GLR 230 generates a database of SIMN subscribers based on the service registration information received from the RSCP 220 (S106).

3 is a flowchart illustrating a process of updating subscriber location information by RSCP in the voice call charging processing method by the voice call charging processing system in the outbound overseas roaming service of FIG. 1.

When the mobile station (MS) of the home network 200 (hereinafter, used interchangeably with 'mobile subscriber') 20 is in the partner network 100, the paging signal from the MS 20 is transmitted to the partner network ( 100 is transmitted to the SGSN 120 (S201), the SGSN 120 of the partner network 100 transmits an UGL (Update GPRS Location) signal to the GLR 230 of the home network 200 (S202). The GLR 230 of the home network 200 transmits the received UGL signal to the HLR 240, and receives Insert Subscriber Data (ISD) from the HLR 240 (S203). Here, ISD is a message that the HLR transmits the subscriber profile to the MSC. Thereafter, the ISD response signal of the GLR 230 for the ISD and the UGL response signal of the HLR 240 for the UGL are accompanied.

 After receiving the response signal for the UGL transmitted to the HLR 240, the GLR 230 determines whether the mobile subscriber subscribes to the SIMN service and prepaid amount service (S204), SIMN service and prepaid amount service In case of the subscriber, the ISD is transmitted to the SGSN 120 of the partner network 100. In addition, the GLR 230 transmits the UGL response signal in response to the ISD response signal from the SGSN 120 of the partner network 100 (S205), and transmits the location registration information to the RSCP 220 to the database of SIMN subscribers. To update (S206, S207).

Meanwhile, the SGSN 120 of the partner network 100 transmits an UL (Update Location) request signal to the MSC 130 of the partner network 100 in response to the UGL response signal from the GLR 230 (S208). The MSC 130 transmits a UL signal to the GLR 230 of the home network 200 (S209), and the GLR 230 retransmits the UL signal to the HLR 240.

The HLR 240 transmits the ISD to the GLR 230 with respect to the received UL signal, and the ISD response signal and the UL response signal are exchanged between the GLR 230 and the HLR 240 (S210).

After receiving the response signal for the UGL transmitted to the HLR 240, the GLR 230 determines whether the subscriber has subscribed to the SIMN service and the prepaid amount service (S211), if the subscriber is a SIMN service subscriber ISD The MSC 130 of the partner network 100 is transmitted. The GLR 230 transmits a UL response signal in response to the ISD response signal from the MSC 130 of the partner network 100 (S212), and transmits location registration information to the RSCP 220 to update the database of the SIMN subscriber. (S213, S214).

The MSC 130 of the partner network 100 transmits the LU response signal to the SGSN 120, and the SGSN 120 allows the MS 20 to attach in response to the LU response signal (S215 and S216). ).

4 is a flowchart illustrating a logic execution process of a prepaid amount service by RSCP in the voice call charging processing method by the voice call charging processing system in the outbound overseas roaming service of FIG. 1.

Referring to FIG. 4, when the MS 20 of the home network 200 in the partner network 100 transmits an outgoing signal, it is transmitted to the MSC 130 of the partner network 100 together with the called party's called number (S301). ), The MSC 130 transmits an IDP (Initiate Detect Point) to the RSCP 220 of the home network 200 based on the received called number (S302). Here, IDP is a message requesting that MSC / SGSN drive service logic in SCP according to CAMEL Subscription Information (CSI).

The RSCP 220 searches for the originating GT based on the received IDP (S303), and executes the prepaid amount logic service (S304). Here, GT is a value similar to IP as a value for routing in the SCCP layer. In addition, the logic of the prepaid amount service is to deduct the billing of the overseas roaming service from the amount prepaid or pre-set by the subscriber of the prepaid amount service, and perform the billing of the overseas roaming service within the remaining amount. It refers to the logic of balance monitoring and billing calculation. That is, the RSCP 220 executes the prepaid amount service logic of the mobile subscriber in response to the retrieved outgoing GT, and monitors whether the current balance of the prepaid amount or the pre-set amount by the mobile subscriber is a predetermined amount or more. . The predetermined amount here is set to the minimum amount for executing the overseas roaming service, it is preferable that the overseas roaming service is set to be blocked if the balance is less than the predetermined amount.

If the remaining amount is more than the predetermined amount, RSCP 220 transmits a signal such as Request Report BCSM Event (RRBE), Call Information Request (CIRQ), AC, CONN, etc. to MSC 130 of partner network 100 ( S305).

The MSC 130 of the partner network 100 interprets the called number transmitted by the subscriber (S306), transmits an IAM (Initiate Address Message) to the GMSC 140 of the partner network 100 (S307), and GMSC In step S308, ACM / ANM is received from 140. Thereafter, the MSC 130 of the partner network 100 transmits an event report BCSM (ERB) message to the RSCP 220 of the home network (S309), and again transmits the ERB message, CIRP, and ACR after the call is released. (S310, S311, S312).

The RSCP 220 transmits a Furnish Charging Information (FCI) message to the MSC 130 of the partner network 100 in response to the received signal (S313), whereby the subscriber 20 receives a minor number from the partner network 100. The prepaid money service when the destination number is transmitted to the home network 200 ends (S314).

5 is a flowchart illustrating a voice call charging processing method when a subscriber is a called party in the voice call charging processing method by the voice call charging processing system in the outbound overseas roaming service of FIG. 1.

When the subscriber 20 in the partner network 100 is the called party, the MSC 130 of the partner network 100 transmits an IAM signal to the GMSC 140 of the partner network 100 (S401). GMSC 140 of 100 transmits the IDP to RSCP 220 of home network 200 (S402).

The RSCP 220 determines whether the subscriber 20 subscribes to the SIMN service and subscribes to the prepaid amount service based on the IDP received from the GMSC 140 (S403).

When the subscriber 20 subscribes to the SIMN service and the prepaid amount service, the RSCP 220 transmits signals such as RRBE, CIRQ, AC, and CONN to the GMSC 140 of the partner network 100 (S404).

Thereafter, when the call processing period is reached, the GMSC 140 of the partner network 100 transmits an ERB message to the RSCP 220 of the home network 200 (S405 and S406), and the GMSC of the partner network 100 after the call release. The 140 again transmits the ERB message, the CIRP, and the ACR message to the RSCP 220 of the home network 200 (S407 to S409).

RSCP 220 transmits an FCI message to GMSC 140 of partner network 100 in response to the received signal (S410), whereby subscriber 20 operates as a called party of a minor number in partner network 100. If the prepaid amount of money service is terminated (S411).

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the present invention is not limited to the specific embodiments of the present invention without departing from the spirit of the present invention as claimed in the claims. Anyone skilled in the art can make various modifications, as well as such modifications are within the scope of the claims.

According to the present invention, the subscriber pays a predetermined prepaid amount and can use the voice call service in the overseas roaming only within the amount paid, thereby preventing the user from being charged a lot without being charged by the overseas roaming service. .

1 is a block diagram schematically showing a voice call charging processing system in an overseas roaming service according to an embodiment of the present invention;

FIG. 2 is a flowchart illustrating a database generation process by a GLR in the voice call charging processing method by the voice call charging processing system in the overseas roaming service of FIG.

3 is a flowchart illustrating a process of updating subscriber location information by RSCP in the voice call charging processing method by the voice call charging processing system in the overseas roaming service of FIG. 1;

4 is a flowchart illustrating a logic execution process of a prepaid amount service by RSCP in the voice call charging processing method by the voice call charging processing system in the overseas roaming service of FIG. 1;

FIG. 5 is a flowchart illustrating a voice call charging processing method when a subscriber is a called party in the voice call charging processing method by the voice call charging processing system in the overseas roaming service of FIG. 1.

Claims (8)

In the voice call charging processing system in the outbound overseas roaming service, GLR, which creates a database of subscribers for the Single IMSI Multiple Number (SIMN) service that assigns a primary number in the home network and a secondary number in the partner network, and a subscriber's database for prepaid amount services. (Gateway Location Register); And When the mobile subscriber is in the partner network, the database of the mobile subscriber is updated based on the database generated by the GLR, and the mobile subscriber subscribes to the minor number in a prepaid amount or a predetermined amount. A voice call billing processing system in an outbound overseas roaming service, comprising: a Roaming Service Control Point (RSCP) for subtracting billing when an incoming or outgoing call is received. In the voice call billing processing method in outbound overseas roaming service, Exchanging a MSISDN range of the SIMN service subscriber with the MSISDN of the home network of the SIMN service subscriber for the SIMN service assigning the major number in the home network and the minor number in the partner network; Creating a database for the SIMN service and the prepaid amount service subscriber based on the exchanged MSISDN range information; Updating the SIMN service subscriber's database when the SIMN service subscriber is in the partner network; And And subtracting the charges when the SIMN service subscriber is prepaid or a predetermined amount by the sub-number from the prepaid amount or a predetermined amount. . The method of claim 2, Registering an MSISDN range of the exchanged SIMN service subscriber in the home network and a partner network, and the prepaid amount or a predetermined amount to RSCP; And And a GLR (Gateway Location Register) registering the SIMN service and the prepaid amount service on the basis of the information registered in the RSCP. The method of claim 2, Determining, by the GLR, a subscriber profile from a home location register (HLR) based on the paging signal of the SIMN service subscriber, and determining whether to subscribe to the prepaid money service; Transmitting, by the GLR, the subscriber profile to a Serving GPRS Support Node (SGSN) of the partner network when determined to be a subscriber of the prepaid amount service; And The GLR further receiving a response message from an SGSN of the partner network; RSCP updates the subscriber information based on the response message from the SGSN voice call billing processing method in the outbound overseas roaming service. The method of claim 2, Determining, by the GLR, a subscriber profile from an HLR based on a LU (Location Update) request signal from an SGSN of the partner network, and determining whether to subscribe to the prepaid money service; Transmitting, by the GLR, the subscriber profile to a mobile switching center (MSC) of the partner network when determined to be a subscriber of the prepaid amount service; And The GLR further receiving a response message from an MSC of the partner network; RSCP updates the subscriber information based on the response message from the MSC voice call billing processing method in the outbound overseas roaming service. The method of claim 2, RSCP searching for the originating GT based on the incoming signal transmitted from the subscriber; And And executing the logic of the prepaid money service based on the originating GT from which the RSCP has been retrieved. The method of claim 6, The RSCP further comprises the step of transmitting Furnish Charging Information (FCI) to the MSC of the partner network. The method of claim 2, When the call is received by the minor number, determining whether the mobile communication subscriber subscribes to the SIMN and prepaid amount of service; And When the subscriber is subscribed to SIMN subscription and prepaid amount service, the RSCP further comprises the step of transmitting the FCI to the gateway mobile switching center (GMSC) of the partner network, voice call in the outbound overseas roaming service How to handle billing.

Images