KR100947496B1 - Roaming service system, and location registering method for simn service subscriber and identifying method for receiving number - Google Patents

Abstract

PURPOSE: A subscriber location registration method of a multi number supply service used in a roaming service system is provided to accurately confirm MAP parameter defined as 3GPP(3GPP(3rd Generation Partnership Project)). CONSTITUTION: An MS(Mobile Station) transfers the location updated signal from the abroad network to the home network(200) in case the location registration is requested. The multiple number offer part changes the identification number of the mobile communications terminal based on the answer signal about the location updated signal to the sub-addressing of the abroad network. The multiple number offer part transfers the answer signal about the location updated signal to the abroad network. The location of the mobile communications terminal is registered.

Description

Roaming service system, and location registering method for SIMN service subscriber and identifying method for receiving number}

The present invention relates to an overseas roaming service, and more particularly, to an overseas roaming system that provides a roaming service using a single IMSI multiple number (SIMN) service that assigns a major number and a minor number to a mobile communication terminal, and uses the same. The present invention relates to a subscriber location registration method and a called number identification method of a SIMN service.

Today, according to overseas roaming services, mobile subscribers such as domestic wideband code division multiple access (WCDMA) access their domestic home networks in foreign countries using their mobile communication terminals, for example, voice or video. Calling services, downloading / uploading of multimedia data, and wireless Internet services can be used.

Generally, when overseas roaming service subscriber accesses domestic home network from abroad, 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, "+" + "country number" + "called number except 0" should be entered. In addition, when a foreign roaming service subscriber accesses the country's network from a foreign country, the user can use a call or a messaging service by pressing the 'region code + phone number' and then pressing the call button as in the domestic network 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 network 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) that manages the subscriber location of the called number. The call is connected by ISUP processing back to the destination MSC.

In general, a subscriber's mobile communication terminal number is an IMSI (International Mobile Subscriber Identity) number managed by a USIM (Universal Subscriber, Identity, Module, etc.) card installed in the mobile communication terminal, and an MSISDN (Assigned to the subscriber terminal in the home network corresponding thereto). It is an identification number uniquely determined for each subscriber's mobile communication terminal by a Mobile Subscriber Integrated Service Digital Network number.

In particular, the GSM / WCDMA mobile communication terminal can support multi-band (automatic roaming) is possible. Using the characteristics of the GSM / WCDMA mobile communication terminal, a service for applying automatic roaming by assigning a plurality of MSISDN numbers to one IMSI has been developed, and a SIMN (Single IMSI Multiple Number) is one such service. . That is, the SIMN service assigns a major number in the home network in response to the IMSI of the mobile communication terminal subscribed to the service, and temporarily assigns a minor number in the visiting network of the country visited by the user to apply to automatic roaming.

However, when the incoming or outgoing SIMN service subscribers receive a major number or a minor number, each incoming charge is different, and whether the incoming or outgoing call is received by the primary number or the minor number to the incoming SIMN service customer. There is no way to tell exactly.

For this purpose, a method of displaying a type of called number on a specific terminal using a Calling Information Sending Service (CISS) can be considered. However, this means that a device providing a SIMN service is a protocol called ISUP (ISDN User Part). In addition to increasing the development and construction costs of the device, and in order to provide similar functions to overseas operators, a function similar to the caller information display service not defined in the standard must be added to the terminal. There is a problem.

Another approach could be to use the unstructured supplementary service data (USSD). However, the use of USSD can affect the incoming call because USSD call and voice call are made at the same time, and the problem still remains that the called customer can not identify whether it is major number or minor number call. have.

The present invention is to solve the above problems, without having to implement a protocol called ISUP in the SIMN service providing apparatus whether the SIMN service subscribers are received by the major number or the minor number to the MAP parameters defined in the 3GPP standard It is an object of the present invention to provide an overseas roaming service system that can be accurately used, and a subscriber location registration method of the multiple number providing service and a destination number identification method of the multi number providing service.

In the overseas roaming service system according to the present invention for achieving the above object, in the overseas roaming service system having a multi-number providing unit for giving a major number and a minor number to a mobile communication terminal, the multi-number providing unit, the mobile number When the communication terminal requests a location registration from a visited overseas network, the recognition number of the mobile communication terminal is changed to a minor number used in the foreign network, and the response signal for the location update signal is changed based on the changed minor number. Characterized in that the transmission to the network.

Preferably, when an incoming call occurs with a main number assigned to the mobile communication terminal, the multi-number providing unit may relay transmission of a routing information request signal and a response signal between a home network and the foreign network.

In addition, when an incoming call occurs with a sub-number assigned to the mobile communication terminal, the existing multiple number providing unit determines whether the mobile communication terminal is roaming overseas based on a location inquiry signal received from the overseas network, and the mobile communication If it is determined that the terminal is roaming overseas, the mobile station may convert the minor number into a main number and transmit the location inquiry signal to the home network.

Meanwhile, an embodiment of a subscriber location registration method of a multiple number providing service for achieving the above object is directed to a subscriber location registration method of a multiple number providing service to be used for an overseas roaming service by assigning a major number and a minor number to a mobile communication terminal. When the mobile communication terminal requests a location registration in the visited overseas network, the multi-number provider provides a location update signal from the foreign network to the home network; Changing, by the multi-number provider, the identification number of the mobile communication terminal to a minor number used in the foreign network based on a response signal to the location update signal in the home network; And registering the location of the mobile communication terminal by transmitting a response signal for the location update signal to the foreign network based on the changed minor number.

Here, in the home network, a Home Location Register (HLR) preferably transmits an Insert Subscriber Data (ISD) signal including a profile of a subscriber with respect to the location update signal, to the multi-number provider.

The multi-number provider may be configured to transmit the ISD signal of which the mobile subscriber integrated service digital network (MSISDN) of the mobile communication terminal is changed to a minor number used in the overseas network, to the MSC (Mobile Switching Center) of the foreign network. It is preferable.

In addition, according to a first embodiment of a method for identifying a called number of a multiple number providing service for achieving the above object, identification of a called number of a multiple number providing service to be used for an overseas roaming service by assigning a major number and a minor number to a mobile communication terminal A method comprising: registering a subscriber's location by the subscriber location registration method of the multiple number providing service; Relaying, by the multi-number provider, transmission of a routing information request signal and a response signal between a home network and an overseas network when an incoming call occurs to a main number assigned to the mobile communication terminal; And transmitting a message including a called number from the home network to the foreign network based on a response signal to the routing information request signal, wherein the foreign network receives the routing information request signal received from the home network. Store the calling number based on the transmission, and transmit the stored calling number to the mobile communication terminal.

The method may further include receiving, by a gateway mobile switching center (GMSC) of the home network, the message including the main number and the calling number of the mobile communication terminal; And assigning, by the MSC of the foreign network, a mobile subscriber roaming number (MSRN) to the mobile communication terminal in response to the routing information request signal. In this case, the GMSC of the home network preferably transmits the message with the MSRN as the called number to the foreign network based on a response signal to the routing information request signal.

In addition, the called number identification method, GMSC of the home network transmitting a SRI (Send Routing Information) signal for inquiring the position of the mobile communication terminal to the HLR of the home network; And transmitting, by the HLR, an SRI response signal to the GMSC based on the response signal to the routing information request signal.

In addition, according to a second embodiment of a method for identifying a called number of a multiple number providing service for achieving the above object, identification of a called number of a multiple number providing service to be used for an overseas roaming service by assigning a major number and a minor number to a mobile communication terminal A method comprising: registering a subscriber's location by the subscriber location registration method of the multiple number providing service; Receiving a location inquiry signal of the mobile communication terminal from an overseas network by a multiple number providing unit when an incoming call occurs to a minor number assigned to the mobile communication terminal; Determining, by the multi-number provider, whether the mobile communication terminal is roaming abroad; If it is determined that the mobile communication terminal is roaming abroad, converting the minor number of the mobile communication terminal into a main number and transmitting the location inquiry signal to a home network; And transmitting a response signal to the overseas network in response to the location inquiry signal in the home network.

The called party identification method according to the second embodiment includes the steps of: the multi-number provider providing a routing information request signal from the HLR of the home network to the MSC of the foreign network; And after the calling number and the minor number are stored in the MSC of the foreign network based on the routing information request signal, transmitting a response signal for the routing information request signal from the MSC of the foreign network to the HLR of the home network. It may further include.

In addition, the called number identification method according to the second embodiment may further include the step of receiving the response signal for the location inquiry signal from the multi-number provider from the HLR of the home network and forwards it to the GMSC of the foreign network have. In this case, the MSC of the overseas network preferably transmits the calling number and the minor number to the mobile communication terminal based on a message including a called number received from the GMSC of the foreign network.

A third embodiment of a called number identification method for achieving the above object is a called number identification of an overseas roaming service system having a multiple number providing unit for assigning a major number corresponding to a home network and a minor number corresponding to a foreign network. 1. A method, comprising: determining a type of a TAG according to whether or not a mobile communication terminal receives an incoming call with a minor number according to whether a location is registered in the multi-number providing unit; Transmitting the routing information message to the location registration register of the home network by setting the minor number to the type of the determined TAG; And outputting the minor number set in addition to the calling number to the mobile communication terminal.

Here, the TAG is preferably set differently corresponding to the home network or the overseas network.

In the step of determining the type of TAG, if the mobile communication terminal receiving the call with the minor number is not registered in the multi-number providing unit, it is determined that the type of the TAG is determined by determining that it is registered in the home network. desirable.

In the step of determining the type of the TAG, if the mobile communication terminal that has received the sub-number is registered in the multi-number providing unit, it is preferable to determine the type of the TAG by determining that it is registered in the foreign network. Do.

Thus, the overseas roaming service system can accurately inform the SIMN service subscriber using the MAP parameter defined in the 3GPP standard whether the SIMN service subscriber receives the main number or the minor number without implementing the ISUP protocol. Will be.

Hereinafter, with reference to the accompanying drawings will be described in detail the roaming service system and the subscriber location registration method and the destination number identification method of the multiple number providing service used therein according to the present invention.

1 is a block diagram schematically showing an overseas roaming service system according to the present invention. Referring to the figure, the overseas network 100 visited by a subscriber of the SIMN service includes an MSC 120, a GMSC 130, and a subscriber's mobile station (MS) 240. In addition, the home network 200 of the SIMN service subscriber includes a SIMN SP (SIMN Service Provider) 210, an HLR 220, an MSC 230, a GMSC 232, and a subscriber's mobile communication terminal 240. . In addition, the overseas roaming service system according to the present invention has a relationship with a second overseas network 300 visited by a SIMN service subscriber, and in this case, the second overseas network 300 is a subscriber's mobile terminal 240 and MSC. It is preferred to include (320).

The MSCs 120, 230, and 320 are also called mobile switching centers and provide circuit switching services to mobile communication subscribers in conjunction with fixed networks. The MSCs 120, 230, and 320 serve to configure access points for user traffic between the mobile telecommunications network and the public telephone network, or other mobile switching centers in the same or other mobile telecommunications networks. It has a call channel hand-off function that keeps track of the location of the phone so that it can always provide mobile phone service and keeps the communication service even if the location changes.

GMSC (130, 232) is also called a gateway mobile communication switch, and if the number is the network number, it functions to query the location of the subscriber of the MAP from the HLR and connect the call to the destination MSC by using the resulting MSRN. . In addition, GMSC (130, 232) can be made to the incoming call from the gateway mobile communication switch of the other network by the ISUP connection to the gateway mobile communication switch of the other network if the number is another network number.

The SIMN SP 210 is also called a multi-number provider, and when the mobile terminal 240 requests a location registration from the visited overseas network 100, the SIMSDN, which is a unique identification number of the mobile communication terminal 240, is transferred from the overseas network. Change to the minor number used. In addition, the SIMN SP 210 transmits a response signal (ISD: Insert Subscriber Data) to a location update (UL) signal received from the MSC 120 of the foreign network based on the changed minor number. 120).

In addition, the SIMN SP 210 receives a routing information request signal received from the HLR 220 of the home network 200 when an incoming call occurs with a major number assigned to the mobile communication terminal 240 in the overseas network 100. PRN (Provide Roaming Number) is transmitted to the MSC 120 of the foreign network 100, and also receives a response signal from the MSC 120 of the foreign network 100 to the HLR 220 of the home network 200 To pass).

In addition, when an incoming call occurs with a minor number assigned to the mobile communication terminal 240 in the overseas network 100, the SIMN SP 210 sends a location inquiry signal (SRI: Send Roaming Information) received from the overseas network 100. It is determined whether the mobile communication terminal 240 is roaming abroad based on the, and if it is determined that the mobile communication terminal 240 is roaming abroad, the minor number of the mobile communication terminal 240 is converted into a major number and the home network 200 Transmits a location inquiry signal to the HLR 220.

2 is a flowchart illustrating a subscriber location registration method of a multi-number service according to the present invention.

Referring to the drawings, when the subscriber of the mobile communication terminal 240 visits the overseas network 100 and transmits a location registration request signal to the MSC 120 of the overseas network 100 (S101), The MSC 120 transmits an UL (Update Location) signal to the SIMN SP 210 (S102), and the SIMN SP 210 transmits the UL signal to the HLR 220 of the home network 200.

The HLR 220 of the home network 200 performs general location registration. That is, the HLR 220 of the home network 200 supplies the main number used in the home network 200 of the mobile communication terminal 240 to the SIMN SP 210 in response to the UL signal received from the SIMN SP 210. It transmits an ISD signal including, and receives a response signal (ISD ACK) for the ISD signal from the SIMN SP (210) and transmits a corresponding UL ACK signal (S103).

The SIMN SP 210 changes the MSISDN to a minor number assigned by the multi-number service in response to the UL ACK signal received from the HLR 220 of the home network 200 (S104). Thereafter, the SIMN SP 210 transmits an ISD signal including a minor number used in the overseas network 100 visited by the mobile communication terminal 240 to the MSC 120 of the overseas network 100. At this time, a response signal for the ISD signal and a response signal for the UL signal are transmitted and received between the MSC 120 and the SIMN SP 210 of the overseas network 100, and the location registration for the mobile communication terminal 240 is completed. (S105, S106). As a result, the multi-number provider can accurately know the network information in which the subscriber of the SIMN service is located, thereby making it possible to know whether the SIMN service subscriber is roaming. At this time, the home network recognizes that the subscriber of the SIMN service is registered in the multi-number providing unit.

3 is a flowchart illustrating a first embodiment of a method for identifying a called number of a multiple number providing service according to the present invention.

The mobile communication terminal 240, which is registered in the SIMN SP 210 by the subscriber location registration method as shown in FIG. 2, is called by the main number assigned to the mobile communication terminal 240 from the overseas network 100 visited by the subscriber. If this occurs, the GMSC 230 of the home network 200 receives an IAM (Initial Address Message) message including an incoming number and an originating number including the major number of the SIMN service subscriber (S201), and receives the received IAM. In response to the message, the routing switch transmits an SRI (Send Routing Information) signal used by the originating exchange to query the location of the called subscriber to the HLR 220 of the home network 200 (S202 and S203).

The HLR 220 of the home network 200 transmits a PRN (Provide Roaming Number), which is a routing information request signal, to the MSC 120 of the overseas network 100 where the subscriber of the SIMN service is located through the SIMN SP 210. Request for routing number assignment from MSC 120 of foreign network 100 (S204, S205). At this time, since the subscriber of the SIMN service is registered in the SIMN SP 210 in the HLR 220 of the home network 200, the PRN message is transmitted to the SIMN SP 210, and the SIMN SP 210 is the actual SIMN service subscriber. The PRN is transmitted to the MSC 120 of the located foreign network 100 to request allocation of a routing number. Meanwhile, the HLR 220 of the home network 200 bypasses the analog subscriber interface (ASI) transmitted to the SRI to the PRN. In addition, the MSC 120 of the overseas network 100 where the subscriber of the SIMN service is located temporarily stores the calling number included in the ASI of the PRN and allocates a Mobile Subscriber Roaming Number (MSRN) to the PRN, which is a response signal to the PRN. An ACK is transmitted to the SIMN SP 210 (S206, S207).

The SIMN SP 210 receiving the PRN ACK signal transmits it to the HLR 220 of the home network 200, and the HLR 220 of the home network 200 transmits the SRI ACK, which is a response signal to the SRI signal, to the home network 200. ) Is transmitted to the GMSC 230 (S208, S209).

The originating GMSC 230 of the home network 200 transmits an IAM message in which the called number is set to MSRN to the destination MSC 120 of the overseas network 100 (S201). The incoming MSC 120 of the overseas network 100 sets the calling number of the SETUP using the caller number temporarily stored by the MSC 120 of the overseas network 100 and transmits it to the mobile communication terminal 240. (S211, S212). As a result, the mobile communication terminal 240 can output the value set in the caller ID of the SETUP on the screen (S213).

4 is a flowchart illustrating a second embodiment of a method for identifying a called number of a multiple number providing service according to the present invention.

For the mobile communication terminal 240 registered in the SIMN SP 210 by the subscriber location registration method as shown in FIG. 2, a sub-number (S #) transmitted by the subscriber from the overseas network 100 in the home network 200 SIMN SP 210 receives an SRI message from GMSC 130 of overseas network 100, and if the minor number (S #) is the minor number being used, and corresponds to the minor number. It is determined whether the subscriber is roaming (S301 to S304). At this time, since the subscriber is not registered in the SIMN SP 210, the SIMN SP 210 determines that the subscriber is located in the home network 200 of the subscriber, and thus the SRI message to the HLR 220 of the home network 200. It is transmitted (S305, S306). SRI messages include called number (P #), and ASI. At this time, the calling number and the minor number are differently set and transmitted to the ASI of the SRI according to the minor number reception setting of the operator information of the home network 200. It consists of ASI = CALLING NUMBER + GENERIC NUMBER, because there is a TAG that tells what the included value means and that TAG can be used differently by each operator. Therefore, the GN of the GN must be set differently according to the operator information in which the SIMN subscriber is located, so that the SIMN subscriber can identify which phone the call is from regardless of the location.

For example, 1) A, B, and C operators agree to provide SIMN services to each other, and 2) A's SIMN service subscribers have a major number A1, minor numbers B1, C1, and 3 ) Assuming that A operator uses GN TAG = 1 when receiving a minor number, B operator uses GN TAG = 2, and C operator uses GN TAG = 3.

When the subscriber of the SIMN service of the A operator receives the A network 200, if the incoming call to A1 is the main number incoming, it can proceed without the SIMN SP 210.

When the subscriber of the SIMN service of the A operator receives the B1 from the A network 200, the location of the called subscriber is not registered in the SIMN SP 210. A minor number is set to GN TAG = 1 used for A network minor number reception, and an SRI is transmitted to the HLR 220 of the home network 200, and a minor number B1 (S #) is output to the called terminal in addition to the calling number. (S305 to S315) (see FIG. 4)

When the subscriber of the SIMN service of the A operator receives the C1 from the A network, since the location is not registered with the SIMN SP 210 when the incoming call proceeds to the C1, the SIMN service subscriber is regarded as having been registered with the A network 200 and the SIMN SP 210 A minor number is set in GN TAG = 1 used for A network minor number reception of the A) to transmit the SRI to the HLR 220 of the home network 200, and the destination terminal outputs the minor number C1 in addition to the calling number.

As shown in FIG. 5, when the SIMN service subscriber of the A company receives an incoming call from the B network 100, when the incoming call is received by A1, the call is received from the main number, and therefore, no separate processing is required. However, when the incoming call is received by B1, the incoming subscriber is registered in the B network 100 at the SIMN SP 210 when the incoming call proceeds to the B1, so that the GN TAG used to receive the B network 100 minor number of the SIMN SP 210 is received. SRI is transmitted to the HLR 220 of the home network 200 by setting the minor number to = 2, and the minor number B1 (S #) is output to the called terminal in addition to the calling number (S404 to S416) (see FIG. 5). . In addition, when the call is received by C1, the incoming subscriber is registered in the B network 100 at the SIMN SP 210 when the call is progressed to C1, which is used to receive the B network 100 minor number of the SIMN SP 210. A minor number is set at GN TAG = 2 to transmit an SRI to the HLR 220 of the home network 200, and a minor number C1 is output to the called terminal in addition to the calling number.

As shown in FIG. 6, when the subscriber of the SIMN service of the A operator receives a call from the C network 300, when the callee receives the call A1, the user receives the main number and therefore does not require separate processing. However, when the incoming call is received in B1, the incoming subscriber is registered in the C network 300 at the SIMN SP 210 when the incoming call is progressed to B1, so that the GN TAG = 3 used to receive the C network 300 minor number of the SIMN SP 210. The sub-number is set to the SRI to the HLR 220 of the home network 200 and the sub-number B1 is output to the called terminal in addition to the calling number (S #) (S504 to S516) (see FIG. 6). In addition, when receiving the C1, the incoming subscriber is registered in the C network 300 in the SIMN SP 210 when the incoming call proceeds to C1 GN used to receive the C network 300 minor number of the SIMN SP (210) By setting a minor number at TAG = 3, the SRI is transmitted to the HLR 220 of the home network 200, and a minor number C1 is output to the called terminal in addition to the calling number.

As described above, in the case of the minor number reception of the subscriber of the SIMN service, the destination number (MSISDN) of the SRI signal transmitted from the GMSC 130 of the overseas network 100 is changed to the major number of the SIMN service subscriber, and the ASI is changed. In addition to the calling number, the subnumber according to the location information of the SIMN service subscriber and the TAG are set differently and transmitted to the HLR 220 of the home network 200 to which the SIMN service subscriber belongs. At this time, when the foreign network 100 and the home network 200 is provided between the international country and the number portability is provided in the home network 200, the SRI message may not be delivered to the home network 200. In order to transmit to the mobile station 200, a mobile global title (MGT) of a SIMN service subscriber may be set and transmitted. Here, MGT is a technique for routing to IMSI.

The HLR 220 of the home network 200 receiving the SRI transmits the PRN by setting the ASI included in the SRI to the SIMN SP 210 where the called subscriber is located. The SIMN SP 210 receives the PRN from the HLR 220 of the home network 200 and then transfers the PRN message to the MSC 120 of the overseas network 100 where the subscriber of the SIMN service is registered.

The MSC 120 of the foreign network 100 receiving the PRN temporarily stores the calling number and the minor number of the SIMN service subscriber included in the ASI of the PRN, allocates the MSRN, and transmits the PRN ACK to the SIMN SP 210.

The PRN ACK is transmitted to the HLR 220 of the home network 200 via the SIMN SP 210, and the SRI ACK is transmitted from the HLR 220 of the home network 200 via the SIMN SP 210. 200 to GMSC 130.

The GMSC 130 of the overseas network 100 transmits an IAM message to the originating MSC 120 of the overseas network 100 using the MSRN included in the SRI ACK, and the destination MSC 120 of the overseas network 100 After receiving the IAM message, the temporarily stored calling number and the minor number of the SIMN service subscriber are set in the SETUP message and transmitted to the mobile communication terminal 240.

In this way, the mobile communication terminal 240 simultaneously outputs the calling number and the minor number of the SIMN service subscriber, so that it is possible to accurately distinguish whether the incoming or outgoing major number is received.

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 an overseas roaming service system according to the present invention.

2 is a flowchart illustrating a subscriber location registration method of a multi-number service according to the present invention.

3 is a flowchart illustrating a first embodiment of a method for identifying a called number of a multiple number providing service according to the present invention.

4 is a flowchart illustrating a second embodiment of a method for identifying a called number of a multiple number providing service according to the present invention.

5 is a flowchart illustrating a third embodiment of a method for identifying a called number of a multiple number providing service according to the present invention.

6 is a flowchart illustrating a fourth embodiment of a method of identifying a called number of a multiple number providing service according to the present invention.

<Description of Symbols for Main Parts of Drawings>

100: overseas network

110: mobile station (MS)

120: Mobile Switching Center (MSC)

130, 230: Gateway Mobile Switching Center (GMSC)

200: home net

210: SIMN Service Provider (SIMN SP)

220: HLR (Home Location Register)

Claims (15)

Claims [1] A subscriber location registration method of a multi-numbering service for providing a main number and a minor number to a mobile communication terminal for use in an overseas roaming service. Transmitting a location update signal from the foreign network to a home network by a multi-number provider when requesting location registration from an overseas network visited by the mobile communication terminal; Changing, by the multi-number provider, the identification number of the mobile communication terminal to a minor number used in the foreign network based on a response signal to the location update signal in the home network; And And registering the location of the mobile communication terminal by transmitting a response signal for the location update signal to the foreign network based on the changed minor number. How to register your location. The method of claim 1, In the home network, a home location register (HLR) transmits an insert subscriber data (ISD) signal including a subscriber profile with respect to the location update signal, to the multi-number providing unit. How to register your location. The method of claim 2, The multi-number provider may be configured to transmit the ISD signal changed from a mobile subscriber integrated service digital network (MSISDN) of the mobile communication terminal to a minor number used in the overseas network, to the MSC (Mobile Switching Center) of the foreign network. Subscriber location registration method of multi-number service. Claims [1] A method for identifying a called number of a multiple number providing service for providing a main number and a minor number to a mobile communication terminal for use in an overseas roaming service, the method comprising: Registering the subscriber's location by the subscriber location registration method of the multi-number providing service according to any one of claims 1 to 3; Relaying, by the multi-number provider, transmission of a routing information request signal and a response signal between a home network and an overseas network when an incoming call occurs to a main number assigned to the mobile communication terminal; And Transmitting a message including a called number from the home network to the foreign network based on a response signal to the routing information request signal; The overseas network stores the calling number based on the routing information request signal received from the home network, and transmits the stored calling number to the mobile communication terminal. The method of claim 4, wherein Receiving, by a gateway mobile switching center (GMSC) of the home network, the message including a main number and the calling number of the mobile communication terminal; And Assigning, by the MSC of the foreign network, a Mobile Subscriber Roaming Number (MSRN) to the mobile communication terminal in response to the routing information request signal; GMSC of the home network transmits the message with the MSRN as the called number to the foreign network based on the response signal to the routing information request signal. The method of claim 4, wherein Transmitting, by the GMSC of the home network, a Send Routing Information (SRI) signal for inquiring the location of the mobile communication terminal to the HLR of the home network; And And transmitting, by the HLR, the SRI response signal to the GMSC based on the response signal to the routing information request signal. Claims [1] A method for identifying a called number of a multiple number providing service for providing a main number and a minor number to a mobile communication terminal for use in an overseas roaming service, Registering the subscriber's location by the subscriber location registration method of the multi-number providing service according to any one of claims 1 to 3; Receiving a location inquiry signal of the mobile communication terminal from an overseas network by a multiple number providing unit when an incoming call occurs to a minor number assigned to the mobile communication terminal; Determining, by the multi-number provider, whether the mobile communication terminal is roaming abroad; If it is determined that the mobile communication terminal is roaming abroad, converting the minor number of the mobile communication terminal into a main number and transmitting the location inquiry signal to a home network; And And transmitting a response signal to the foreign network to the foreign network in the home network. The method of claim 7, wherein Transmitting, by the multi-number provider, a routing information request signal from the HLR of the home network to the MSC of the foreign network; And Transmitting a response signal for the routing information request signal from the MSC of the foreign network to the HLR of the home network after storing the calling number and the minor number based on the routing information request signal; Called party identification method of the multi-number providing service comprising a. An overseas roaming service system having a multiple number providing unit for assigning a major number and a minor number to a mobile communication terminal, The multi-number providing unit changes a recognition number of the mobile communication terminal to a minor number used in the foreign network and updates the location based on the changed minor number when requesting location registration from the overseas network visited by the mobile communication terminal. The overseas roaming service system, characterized in that for transmitting a response signal to the foreign network. The method of claim 9, When the incoming call occurs to the main number assigned to the mobile communication terminal, the multi-number providing unit relays the transmission of the routing information request signal and the response signal between the home network and the overseas network. Service system. The method according to claim 9 or 10, When an incoming call occurs with a minor number assigned to the mobile communication terminal, the multi-number providing unit determines whether the mobile communication terminal is roaming overseas based on a location inquiry signal received from the overseas network. If it is determined that the roaming is overseas roaming service system, characterized in that for converting the minor number of the mobile communication terminal to the main number to transmit the location inquiry signal to the home network. Claims [1] A method for identifying a called number in an overseas roaming service system, comprising a multiple number providing unit for assigning a major number corresponding to a home network and a minor number corresponding to a foreign network. When the mobile communication terminal receives an incoming call with a minor number, determining a type of TAG according to whether or not the location is registered in the multi-number providing unit; Transmitting the routing information message to the location registration register of the home network by setting the minor number to the type of the determined TAG; And And outputting the minor number set in addition to the calling number to the mobile communication terminal. The method of claim 12, The TAG is called number identification method, characterized in that configured differently corresponding to the home network or the overseas network. The method according to claim 12 or 13, In the step of determining the type of TAG, if the mobile communication terminal that has received the sub-number is not registered in the multi-number providing unit, the type of TAG is determined by determining that the mobile communication terminal is registered in the home network. Called number identification method. The method according to claim 12 or 13, In the step of determining the type of TAG, if the mobile communication terminal receiving the call with the minor number is registered in the multi-number providing unit, the type of TAG is determined by determining that the location is registered in the foreign network. How to identify the called number.

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