KR20090063972A - Subscriber location registration system for outbound roaming service and method thereof - Google Patents

Abstract

A subscriber location registration system and method thereof for outbound overseas roaming services are disclosed. In the outbound overseas roaming service according to the present invention, the subscriber location registration method includes the MSISDN and the partner of the home roaming service subscriber's home network for the overseas roaming service which assigns the major number in the home network and the minor number in the partner network. Exchanging MSISDN ranges of the network; creating a database for overseas roaming service subscribers based on the exchanged MSISDN range information; and, if the mobile subscriber is in a partner network, in a location registration signal transmitted from the mobile subscriber. And updating the location information of the overseas roaming service subscriber.

Description

Subscriber location registration system for outbound roaming service and method thereof

The present invention relates to a subscriber location registration method and system for outbound overseas roaming service, and more particularly, to a primary number and a partner network assigned to a home network. By using the secondary number, overseas roaming can efficiently register the location of the mobile communication subscriber in the partner network through an additional device for the intelligent network of the home network, for example, a Roaming Service Control Point (RSCP). A method and system for subscriber location registration in a service.

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 then press the call button to use the call or messaging services. Alternatively, a "+" KEY may be used as an international telephone access number in a global system for mobile telecommunication (GSM) / WCDMA network. That is, the called party number 제외한 제외한 ＂+＂ country code ＂+＂ 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 an area code + a telephone number, and then pressing a call button as in the domestic service usage method.

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, the subscriber's mobile terminal number is an IMSI (International Mobile Subscriber Identity) number managed by a USIM (Universal®Subscriber®Identity®Module) card installed in the mobile terminal and the MSISDN (Mobile) assigned to the subscriber terminal in the home network corresponding thereto. It is a unique identification number unique to each subscriber's mobile terminal by a Subscriber Integrated Service Digital Network 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.

In providing such a SIMN service, the subscriber location registration system and the location registration in the outbound overseas roaming service that can accurately register the location of the mobile subscriber when the mobile subscriber of the home network is in the partner network. Method is required.

The present invention was devised to meet the above requirements, using a primary number assigned in a home network and a secondary number assigned in a partner network. Subscriber location registration system in an outbound overseas roaming service that can efficiently register the location of mobile communication subscribers in the partner network through the intelligent network of the home network, for example, via a Roaming Service Control Point (RSCP); It aims to provide the method.

Subscriber location registration system in the outbound overseas roaming service according to the present invention for achieving the above object, GLR (Gateway Location Register) for creating a database for overseas roaming service subscribers; And a roaming control unit that registers and manages network information in which the mobile communication subscriber is located in a database based on a location registration signal transmitted from the mobile communication subscriber when the mobile communication subscriber is a subscriber of the overseas roaming service. Here, the overseas roaming service includes a supplementary service for assigning a primary number in a home network and a secondary number in a partner network. In addition, the GLR determines whether the mobile subscriber subscribes to an additional service based on the network information where the mobile subscriber is located.

The subscriber location registration method in the outbound overseas roaming service to achieve the above object, for the SIMN service to give the major number in the home network and the minor number in the partner network, the SIMN service subscriber of the home network Exchanging an MSISDN with an MSISDN range of the partner network; Creating a database for the SIMN service subscriber based on the exchanged MSISDN range information; And when the mobile communication subscriber is in the partner network, updating the location information of the SIMN service subscriber based on the location registration signal transmitted from the mobile communication subscriber.

Preferably, the method for registering a subscriber location in the outbound overseas roaming service further comprises registering an MSISDN range in the home network and the partner network of the exchanged overseas roaming service subscriber with a roaming control unit. Preferably, the GLR generates a database for the SIMN service subscriber based on the information registered in the roaming control unit.

In addition, the subscriber location registration method in the outbound overseas roaming service, GLR determines whether the mobile communication subscriber of the overseas roaming service on the basis of the network information received from the partner network; Transmitting, by the GLR, the subscriber profile to the partner network when it is determined that the foreign roaming service is a subscriber; The GLR receiving a response message from the partner network; And roaming control unit registering and managing network information where the mobile communication subscriber is located in a database.

Here, the roaming control unit preferably registers and manages network information received from a serving GPRS support node (SGSN) of the partner network and network information received from a mobile switching center (MSC) of the partner network in a database.

In addition, when it is determined that the mobile communication subscriber is a subscriber of the overseas roaming service, the GLR preferably includes a minor number in a message transmitted to the partner network.

In this case, the major number is the MSISDN of the home network, the minor number is preferably implemented by the MSISDN of the partner network.

According to the present invention, it is possible to accurately register the location of the mobile subscriber in the partner network to provide a differentiated SIMN service.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the subscriber location registration system and the location registration method in the outbound overseas roaming service according to the present invention.

Prior to the detailed description of the present invention, a mobile communication terminal according to the present invention includes 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 subscriber location registration system in an outbound overseas roaming service according to an embodiment of the present invention.

Referring to the drawings, the subscriber location registration system in the outbound overseas roaming service according to the present invention includes a partner network 100, a home network 200, and a third party network 300.

Here, the partner network 100 is a network differentiated from other foreign third party networks 300 in agreement with the home network 200 in overseas roaming service, for example, in the case of Japan as a DCM network, CCBS (Customer Care) Billing System (110) 110, Serving GPRS Support Node (SGSN) 120, and MSC 130.

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, including CCBS 210, RSCP 220, Gateway Location Register (GLR) 230, and SGSN 240. , HLR 250, and MSC 260.

In addition, the third party network 300 is a mobile communication network in other countries except the partner network 100 and the home network 200, and includes an SGSN 310 and an MSC 320.

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 from the partner network 100 is received to manage billing data of the mobile terminal subscriber. In addition, the CCBS (110, 210) exchanges and stores the information on the MSISDN band range of the major number in the home network 200 and the MSISDN band range of the minor number in the partner network 100.

The SGSNs 120, 240, and 310 are also referred to as packet switching support nodes, and are responsible for data packet delivery with a mobile station (MS) in a service area. In addition, SGSNs 120, 240, 310 have functions such as packet routing and transmission, mobility management, logical link management, authentication and charging.

The MSCs 130, 260, and 320 are also called mobile switching centers and provide circuit switching services to mobile subscribers in conjunction with fixed networks. The MSCs 130, 260, and 320 are used to configure access points for user traffic between the mobile telecommunication network and the general telephone network, or other mobile switching centers in the same or different mobile telecommunication networks. It provides a mobile phone service by tracking and always has a hand-off function that maintains a communication service even if the place changes.

The RSCP 220 is an intelligent network device that controls overseas roaming services. When the subscriber of the SIMN service is in the partner network 100, the RSCP 220 updates the subscriber information based on a location registration signal from the subscriber. Preferably, the RSCP 220 registers and manages network information (MSC GT) in which a mobile communication subscriber is located in a database.

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 250, also called a home location register, is a database of mobile subscribers having 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 a GLR in the subscriber location registration method by the subscriber location registration 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. Such major and minor number exchanges can be made offline or online.

The CCBS 210 of the home network 200 provides information on the MSISDN of the minor number in the partner network 100 together with the information on the MSISDN of the international mobile station identity (IMSI) / major number in the home network 200. The service is registered by transmitting to the RSCP 220 (S102).

The RSCP 220 registers and stores information on the MSISDN of the major number of the IMSI / home network 200 and information on the minor number of the partner network 100 (S103). In addition, the RSCP 220 notifies each other of the service registration with the CCBS 110 of the partner network 100 (S104), and also registers information on the SIMN service with the GLR 230 of the home network 200 ( 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 subscriber location registration method when a mobile communication subscriber is in a home network. Referring to the drawings, when the location registration signal from the mobile communication subscriber (hereinafter referred to as MS (Mobile Station)) 201 of the home network 200 is transmitted to the SGSN 240 (S201), SGSN 240 is An UGL (Update GPRS Location) signal is transmitted to the HLR 250, and an Insert Subscriber Data (ISD) message is received from the HLR 250 (S202). Here, the ISD is a message that the HLR transmits the profile of the subscriber to the MSC or SGSN. A profile related to the PS (Packet Service) is transmitted to the ISD transmitted to the SGSN, and a CS related to the circuit service (CS) to the ISD transmitted to the MSC. The profile is sent. Thereafter, the SGSN 240 transmits an ISD response signal for the ISD received by the HLR 250, and the HLR 250 transmits a response signal for the UGL to the SGSN 240.

 After the SGS location registration is completed, the SGSN 240 transmits a location update (LU) request signal for performing CS location registration to the MSC 260 in response to the UGL response signal from the HLR 250 (S203). The MSC 260 transmits an UL (Update Location) signal to the HLR 250 and receives an ISD message from the HLR 250 (S204). Thereafter, the MSC 260 transmits an ISD response signal for the ISD received by the HLR 250, and the HLR 250 transmits a response signal for the UL to the MSC 260.

In addition, after the CS location registration is completed, the MSC 260 transmits an LU response signal to the SGSN 240 in response to the UL response signal from the HLR 250 (S205), and the SGSN 240 sends the MSC 260 to the MSC 260. The access permission signal is transmitted to the MS 201 based on the LU response signal received from the S201.

FIG. 4 is a flowchart illustrating a method of registering a location of a subscriber in a partner network by a subscriber location registration system in the outbound overseas roaming service of FIG. 1, illustrating a process of updating subscriber location information by RSCP.

When the MS 203 of the home network 200 is in the partner network 100, when a location registration signal from the MS 203 is transmitted to the SGSN 120 of the partner network 100 (S301), the partner network ( SGSN 120 of 100 transmits the UGL signal to the GLR 230 of the home network 200 (S302). The UGL transmitted from the SGSN 120 to the GLR 230 basically includes the GT of the SGSN 120.

The GLR 230 of the home network 200 transmits the received UGL signal to the HLR 250 of the home network 200, and receives an ISD message from the HLR 250 (S303). Here, the ISD is a message that the HLR transmits the subscriber profile to the SGSN. Thereafter, the ISD response signal of the GLR 230 for the ISD and the UGL response signal of the HLR 250 for the UGL are accompanied.

After the response signal for the UGL transmitted to the HLR 250 is received, the GLR 230 determines whether the mobile subscriber has subscribed to the SIMN service (S304), and if the subscriber is a subscriber of the SIMN service, the ISD message is received. It transmits to SGSN 120 of the partner network 100. At this time, the MSISDN included in the ISD received by the GLR 230 from the HLR 250 is the major number, and the GLR 230 includes the MSISDN of the minor number in the ISD transmitted to the SGSN 120 of the partner network 100. Send it. The UGL basically includes the IMSI of the mobile subscriber, and the RSCP 220 and the GLR 230 manage the IMSI, the primary MSISDN, and the secondary MSISDN of the SIMN subscriber. Accordingly, the GLR 230 may determine whether the mobile communication subscriber is a SIMN subscriber based on the IMSI included in the UGL, and also view the GT of the SGSN 120 included in the UGL in a partner network to which the SIMN is applied. It may be determined whether the location is registered.

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 (S305), and transmits the location registration information to the RSCP 220.

The RSCP 220 registers and manages the network information (SGSN GT) where the mobile communication subscriber is located in a database based on the location registration information received from the GLR 230 (S306 and S307). In the flow of the call, the UGL transmitted from the SGSN 120 to the GLR 230 includes the GT of the SGSN 120, and the GT of the SGSN 120 is registered and managed by the RSCP 220.

Meanwhile, the SGSN 120 of the partner network 100 transmits a UL request signal to the MSC 130 of the partner network 100 in response to the UGL response signal from the GLR 230 (S308) and the partner network 100. ) MSC 130 transmits a UL signal to the GLR 230 of the home network 200 (S309), the GLR 230 of the home network 200 retransmits the UL signal to the HLR (250). The UL transmitted from the MSC 130 to the GLR 230 basically includes the GT of the MSC 130.

The HLR 250 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 (S310).

After receiving the response signal for the UL transmitted to the HLR 250, the GLR 230 determines whether the subscriber has subscribed to the SIMN service (S311), and if the subscriber is a SIMN service subscriber, the ISD message is transmitted to the partner network ( 100 to MSC 130. At this time, the MSISDN included in the ISD received by the GLR 230 from the HLR 250 is the major number, and the GLR 230 includes the MSISDN of the minor number in the ISD transmitted to the MSC 130 of the partner network 100. Send it.

In addition, the GLR 230 transmits a UL response signal to the MSC 130 in response to the ISD response signal from the MSC 130 of the partner network 100 (S312), and the MSC 130 of the partner network 100. Transmits the LU response signal to the SGSN 120 of the partner network 100 (S313), SGSN 120 of the partner network 100 allows the attachment of the MS 20 in response to the LU response signal (S314).

In addition, the GLR 230 of the home network 200 transmits the location registration information to the RSCP 220, the RSCP 220 based on the location registration information received from the GLR 230, the network information is located in the mobile communication subscriber (MSC GT) is registered and managed in the database (S315, S316). In the flow of the call, the UL transmitted from the MSC 130 to the GLR 230 includes the GT of the MSC 130, and the GT of the MSC 130 is registered and managed by the RSCP 220.

FIG. 5 is a flowchart illustrating a method of registering a subscriber in a third party network by the subscriber's location registration system in the outbound overseas roaming service of FIG. 1.

When the MS 205 of the home network 200 is in the third party network 300, if a location registration signal from the MS 205 is transmitted to the SGSN 310 of the third party network 300 (S401). In operation S402, the SGSN 310 of the third party network 300 transmits a UGL signal to the GLR 230 of the home network 200. The GLR 230 of the home network 200 distinguishes between a third party network and a partner network based on the GT of the SGSN 310 of the third party network 300 included in the UGL signal, and identifies the received UGL signal. It transmits to the HLR 250 of the home network 200, and receives the ISD message from the HLR (250) (S403). Here, ISD is a message that the HLR transmits the subscriber profile to the SGSN 310 of the third party network 300. Thereafter, the ISD response signal of the GLR 230 for the ISD and the UGL response signal of the HLR 250 for the UGL are accompanied.

After the response signal for the UGL is received from the HLR 250, the GLR 230 transmits the ISD message received from the HLR 250 to the SGSN 310 of the third party network 300. At this time, the MSISDN included in the ISD received by the GLR 230 from the HLR 250 is the major number, and the GLR 230 is the MSISDN of the major number in the ISD transmitted to the SGSN 310 of the third party network 300. Include and send.

In addition, the GLR 230 transmits the UGL response signal to the SGSN 310 of the third party network 300 in response to the ISD response signal received from the SGSN 310 of the third party network 300 (S404). .

Meanwhile, the SGSN 120 of the third party network 300 transmits an LU request signal to the MSC 320 of the third party network 300 in response to the UGL response signal from the GLR 230 (S405). The MSC 320 of the third party network 300 transmits a UL signal to the GLR 230 of the home network 200 (S406), and the GLR 230 of the home network 200 transmits the UL signal to the HLR 250. Retransmit to step S407.

The HLR 250 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 (S407).

After the response signal for the UGL transmitted to the HLR 250 is received, the GLR 230 transmits the ISD message received from the HLR 250 to the MSC 320 of the third-party network 300, and the MSC ( In response to the ISD response signal received from 320, the LU response signal is transmitted (S408). At this time, the GLR 230 includes the MSISDN of the MSISDN of the main number in the ISD message transmitted to the MSC 320 of the third party network 300 and transmits the same.

The MSC 320 of the third party network 300 transmits an LU response signal to the SGSN 310 of the third party network 300 (S409), and the SGSN 310 of the third party network 300 is an LU. In response to the response signal, the MS 205 permits access (S410).

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.

1 is a block diagram schematically showing a subscriber location registration system in an outbound 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 subscriber location registration method by the subscriber location registration system in the outbound overseas roaming service of FIG. 1;

3 is a flowchart illustrating a subscriber location registration method when a mobile subscriber is in a home network;

4 is a flowchart illustrating a subscriber location registration method when a mobile subscriber is in a partner network;

5 is a flowchart illustrating a subscriber location registration method when a mobile communication subscriber is in a third party network.

Claims (7)

In the subscriber location registration system in outbound overseas roaming service, A Gateway Location Register (GLR) for creating a database of overseas roaming service subscribers; And If the mobile communication subscriber is a subscriber of the overseas roaming service, based on a location registration signal transmitted from the mobile communication subscriber includes a roaming control unit for registering and managing the network information in which the mobile communication subscriber is located in a database, The overseas roaming service includes a primary number in a home network and an additional service for assigning a secondary number in a partner network. And the GLR determines whether the mobile subscriber subscribes to an additional service based on the network information on which the mobile subscriber is located. Exchanging the MSISDN range of the partner network with the MSISDN of the home network of the overseas roaming service subscriber which assigns the major number in the home network and the minor number in the partner network; Creating a database for the overseas roaming service subscriber based on the exchanged MSISDN range information; And When the mobile communication subscriber is in the partner network, updating the location information of the overseas roaming service subscriber based on the location registration signal transmitted from the mobile communication subscriber. How to register your location.  The method of claim 2, Registering the MSISDN range in the home network and the partner network of the exchanged roaming service subscribers with a roaming control unit; And a GLR generates a database for the overseas roaming service subscriber based on the information registered in the roaming control unit. The method of claim 2, Determining, by the GLR, whether the overseas roaming service is subscribed by the mobile subscriber based on the network information received from the partner network; Transmitting, by the GLR, the subscriber profile to the partner network when it is determined that the foreign roaming service is a subscriber; The GLR receiving a response message from the partner network; And And registering, by the roaming control unit, network information in which the mobile communication subscriber is located in a database, and registering the subscriber location in an outbound overseas roaming service. The method of claim 4, wherein The roaming control unit registers and manages network information received from a serving GPRS support node (SGSN) of the partner network and network information received from a mobile switching center (MSC) of the partner network in a database. How to register subscriber location in roaming service. The method of claim 4, wherein And when the mobile communication subscriber is determined to be a subscriber of the overseas roaming service, the GLR includes a minor number in a message transmitted to the partner network, and transmits the subscriber location in the outbound overseas roaming service. The method according to claim 2 or 6, Wherein the major number is the MSISDN of the home network and the minor number is the MSISDN of the partner network.

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