KR100726808B1 - International roaming gateway system for offering caller information of miss call, method of location registration and roaming service thereof - Google Patents

Abstract

An international roaming gateway system for providing caller information on a missed call signal, a location registration method and a roaming service method are provided to increase convenience for a foreign GSM service subscriber who has subscribed for a service of roaming to a CDMA network and increase revenue by inducing calls from the foreign GSM service subscriber. An international roaming gateway system for providing caller information on a missed call signal comprises a location registering unit(224), a calling number management unit(222) and a calling information providing unit(226). The location registering unit(224) sets a trigger function to a subscriber profile received from a roaming target network wherein the trigger function induces the calling information to be provided when a call connection is failed. The calling number management unit(222) checks whether a calling number is included in a roaming number checking request received from the roaming target network for a call connection setup on a terminal of the subscriber, collects the calling number by transmitting an arbitrarily allocated roaming number in case that the calling number is not included in the roaming number checking request and stores calling information composed of the collected calling number or the calling number included in the roaming number checking request. The calling information providing unit(226) checks a local language of the subscriber in case that a call connection to the terminal of the subscriber is failed, constructs the calling information written in the checked local language and transmits the constructed calling information to the terminal of the subscriber.

Description

INTERNATIONAL ROAMING GATEWAY SYSTEM FOR OFFERING CALLER INFORMATION OF MISS CALL, METHOD OF LOCATION REGISTRATION AND ROAMING SERVICE THEREOF}

1 is a diagram schematically illustrating a roaming system structure between a CDMA system and a GSM system according to an embodiment of the present invention.

2 is a block diagram of functional blocks of an international roaming gateway system (IRGS) according to an exemplary embodiment of the present invention.

3 is a flowchart illustrating a process of performing location registration of a roaming GSM subscriber station by a CDMA system according to an embodiment of the present invention.

4 is a flowchart illustrating a process of processing an incoming signal received from a GSM system by a CDMA system according to a first embodiment of the present invention.

5 is a flowchart illustrating a process of processing an incoming signal received from a GSM system by a CDMA system according to a second embodiment of the present invention.

6 is a flowchart illustrating a process of providing outgoing information on an unsigned signal of a roaming GSM subscriber station by a CDMA system according to a first embodiment of the present invention.

7 is a flowchart illustrating a process of providing outgoing information on an unsigned signal of a roaming GSM subscriber station by a CDMA system according to a second embodiment of the present invention.

8 is a flowchart illustrating a process of providing outgoing information on an unsigned signal of a roaming GSM subscriber station by a CDMA system according to a third embodiment of the present invention.

The present invention relates to an international roaming gateway system, a location registration method, and a roaming service method for providing outgoing information on an unacknowledged signal.

There is a catch call service as one of additional services of a mobile communication company. It is a service that notifies you when your phone is available, such as when your phone is off or in an area where you can't talk, by text message.

Meanwhile, with the rapid increase in mobile communication demand, the demand for global roaming that can be called with a single number anywhere in the world is increasing.

The roaming service is a mobile communication service, and when a mobile communication service subscriber visits a foreign country or visits another local mobile communication service provider area, the roaming service is provided to both subscribers by an agreement between the mobile communication providers and the system. Roaming service is a service that provides mobile phone calling and incoming service in the region.

However, when an incoming call of a GSM (Global System for Mobile communication) subscriber who roams through a Code Division Multiple Access (CDMA) network fails, the GSM roaming subscriber has no way of determining from whom the call is received.

Accordingly, the present invention has been made in view of the above problems, and an international roaming gateway providing outgoing information on an unreceived signal received in an unreachable state to a subscriber station of a second mobile communication system roaming into a first mobile communication system. It provides a system, a location registration method and a roaming service providing method.

According to a feature of the present invention in order to achieve the problems described above, the international roaming gateway system,
In an international roaming gateway system that provides an overseas roaming service in a first mobile communication network to a subscriber station of a second mobile communication network roaming overseas to a first mobile communication network, when a call fails in a subscriber profile received from the second mobile communication network. A location register configured to set and store a trigger for providing outgoing information; In response to the roaming number confirmation request received from the second mobile communication network for call reception setting to the subscriber station, the caller checks whether the calling number is included and if the calling number is not included, transmits a randomly assigned roaming number. A calling number management unit which obtains a number and stores calling information consisting of the obtained calling number or the calling number included in the roaming number confirmation request; And a calling information providing unit for checking a local language of the subscribing terminal and transmitting the stored caller information in the checked language when the call reception fails to the subscribing terminal.

delete

According to a feature of the invention, the location registration method,
A method of registering a location with an international roaming gateway system that provides overseas roaming services in a first mobile communication network to a subscriber station of a second mobile communication network roaming overseas using a first mobile communication network, the method comprising: (a) a location from the subscriber terminal; Receiving a registration request; (b) requesting a location registration of the subscribing terminal to the second mobile communication network and receiving a subscriber profile of the subscribing terminal; And (c) setting and storing a trigger in the subscriber profile which causes the provision of outgoing information when a call is unsuccessful.
According to a feature of the invention, the roaming service providing method,
A roaming service providing method for providing outgoing information on an unreceived call of a call originating from the second mobile communication network to a subscriber station of a second mobile communication network roaming overseas using a first mobile communication network, the method comprising: (a) Receiving, by the international roaming gateway system, a roaming number confirmation request for call establishment for the subscriber station from the second mobile communication network; (b) confirming whether or not a calling number is included in the received roaming number confirmation request; (c) acquiring a calling number by transmitting a randomly assigned roaming number if the calling number is not included as a result of the checking; (d) storing the calling information consisting of the calling number received through step (a) or the calling number obtained through step (c); And (e) checking the local language of the subscribing terminal when the call is unsuccessful to the subscribing terminal, and transmitting and configuring the calling information stored in the step (d) in the checked language.

delete

delete

delete

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification. In addition, when a part is said to "include" a certain component, this means that it may further include other components, except to exclude other components unless otherwise stated. In addition, the term module described herein refers to a unit for processing a specific function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

An international roaming gateway system, a location registration method, and a roaming service method for providing outgoing information on an unsigned signal according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

First, referring to the drawings, a first mobile communication system is a Code Division Multiple Access (CDMA) system, and a second mobile communication system is a GSM (Global System for Mobile communication). As a system, an embodiment in which an overseas subscriber adopting a GSM system roams into a domestic CDMA system will be described.

1 is a diagram schematically illustrating a roaming system structure between a first mobile communication system and a second mobile communication system according to an exemplary embodiment of the present invention.

Referring to FIG. 1, a schematic roaming system structure between a first mobile communication system and a second mobile communication system according to an embodiment of the present invention includes a CDMA system 200 and a GSM system 300.

In this case, the CDMA system 200 includes an international roaming gateway system (IRGS, hereinafter referred to as 'IRGS') 220 connected to the GSM system 300 to implement a roaming service. .

The CDMA system 200 includes a CDMA Mobile Switching Center (MSC) (hereinafter referred to as MSC) 210 that performs a call access function in a CDMA network, a CDMA IRGS 220 that connects a CDMA system and a GSM system. CDMA PGS (PCX Gateway Syatem, hereinafter referred to as 'PGS') that acts as a switch between an external network (where the external network includes a GSM network) and an internal network (where the internal network includes a CDMA network) (230) ).

On the other hand, the GSM system 300 is a GSM MSC (310) for the call connection function in the GSM network and GSM HLR (Home Location Register, HLR) for storing the location information and service information of the subscriber in the GSM technology 320).

Of course, the CDMA system 200 and the GSM system 300 includes a plurality of HLR, MSC, BSS and authentication center in addition to the configuration shown in Figure 1 will be omitted herein.

The CDMA IRGS 220 is responsible for performing location registration and incoming call processing for the GSM subscriber station 100a roaming with the CDMS system 200. In particular, when the roaming GSM subscriber station 100a does not receive the incoming call because the roaming GSM subscriber station 100a does not receive the call, the stored caller number is stored. do. At this time, when providing the calling number, the language of the corresponding country of the roaming GSM subscriber station 100a is checked and provided in the checked language.

The CDMA PGS 230 serves as a signal exchanger between the CDMA system 200 and the GSM system 300 and transmits a message received from the MSC 310 of the GSM system 300 to the IRGS 220 of the CDMA system 200. It serves as a).

2 is a block diagram of functional blocks of an international roaming gateway system (IRGS) according to an exemplary embodiment of the present invention.

Referring to FIG. 2, the international roaming gateway system, that is, the CDMA IRGS 220, may include the calling number managing unit 222, the location registration unit 224, and the calling information providing unit 226 in more detail.

The calling number manager 222 performs an operation related to the incoming call processing and the storing of the calling number received from the GSM system 300. That is, it is checked whether the calling number is included in routing request information (PRN) received from the GSM system 300. If the caller ID is not included, a random number (MSRN, Mobile Subscriber Roaming Number) is assigned to the GSM subscriber station 100a roaming with the CDMA system 200. The random number is transmitted in response to the routing request to receive the calling number. In this case, the calling number receives the calling number included in an IAM message using a Location Requeest (LOR) message. Accordingly, when the calling number is included, the calling number is received through the MAP operation, but when the calling number is not included, the calling number is received through the integrated service digital network user part (ISP). This is because the call number is included in the MAP operation in the CDMA network, but the call number is included in the MAP operation in the GSM network. Then, the calling party number or the received calling party number when the calling party number is stored is stored.

The location register 224 performs a location registration procedure of the GSM subscriber station 100a roaming into the CDMA system 200. In particular, when the subscriber station received from the GSM system 300 during the location registration of the roaming GSM subscriber station 100a, the subscriber station is in an unreachable state, providing caller information including the caller number stored in the caller ID manager. Set the trigger for In this case, the parameter for location registration includes an International Mobile Subscriber Identify (IMSI) parameter consisting of a mobile country code (MCC), a mobile network code (MCC), and a mobile subscriber identity number (MSIN).

The originating information provider 226 requests the incoming call from the GSM system 300 to the GSM subscriber station 100b, but the GSM subscriber station 100a roaming into the CDMA system 200 cannot receive the incoming call. If not received, provides the calling information including the calling number, calling time, etc. of the GSM subscriber station (100b). Here, the caller information is stored in the caller ID manager 222. At this time, the language of the corresponding country of the roamed GSM subscriber station 100a in which the trigger is not set to the incoming state is checked and the call information is configured in the language. The configured calling information is transmitted to the roaming GSM subscriber station 100a through SMS.

In addition, the calling information providing unit 226 is configured in more detail in the language of the identification module 226a for confirming the language of the corresponding country of the roaming GSM subscriber station 100a and the calling information including the calling number. It can be implemented by the SMS generation module 226b for transmitting to the roamed GSM subscriber station (100a) via a short message service (SMS). At this time, the identification module 226a is a country of the roaming GSM subscriber station 100a using a mobile network code (MNC) and a mobile subscriber identity number (MSIN) included in the IMSI parameter of the location register 224. You can check the language.

3 is a flowchart illustrating a process of performing location registration of a roaming GSM subscriber station by a CDMA system according to an embodiment of the present invention.

According to FIG. 3, first, a location registration is received from the GSM subscriber station 100a roamed by the CDMA MSC 210 (S101).

Then, the CDMA MSC 210 transmits 'REG_NOTI' to the CDMA IRGS 220 (S103). In this case, 'REG_NOTI' is for performing Registration Notification among CDMA MAP operations, that is, the MSC transmits the information to the HLR during location registration. In this case, the CDMA IRGS 220 serves as the HLR.

Then, the CDMA IRGS 220 transmits the 'UPL' to the GSM HLR 320 (S105). Here, 'UPL' is used to perform 'Update Location' among GSM MAP operations. When the location is registered, the MSC transmits to the HLR.

Then, the GSM HLR 320 requests the location registration cancellation to the GSM MSC 310 (S107).

Then, the GSM MSC 310 deletes the previously registered location of the roamed GSM subscriber station 100a and transmits a response (S109).

Then, the GSM HLR 320 transmits the 'ISD' to the CDMA IRGS 220 and receives a response thereto (S113, S115). Here, 'ISD' is used to perform 'Insert Subscriber Data' during GSM MAP operation and is used by HLR to transmit subscriber profile to MSC. That is, it is used to transmit the subscriber profile of the roamed GSM subscriber station 100a from the GSM system.

Then, the CDMA IRGS 220 transmits 'REG_NOTI ack' to the CDMA MSC 210 in response to the step S103 (S117). In this case, when the roaming GSM subscriber station 100a is in an unreachable state, the CDMA IRGS 220 sets a trigger for providing outgoing information and transmits the trigger to the CDMA MSC 210.

Then, the CDMA MSC 210 transmits the location registration completion to the roamed GSM subscriber station 100a (S119).

On the other hand, the process of processing the incoming call from the GSM system in the CDMA system is divided into a case in which the calling number is included in the PRN (Provide Roaming Number, hereinafter referred to as 'PRN') during the MAP operation.

4 is a flowchart illustrating a process in which a CDMA system processes an incoming call received from a GSM system according to a first embodiment of the present invention, and includes a calling number in a PRN (Provide Roaming Number, hereinafter referred to as 'PRN'). Is a flow chart showing a process of processing an incoming call in the case of an error.

Referring to FIG. 4, first, the GSM subscriber station (calling terminal) 100b makes a call to the GSM MSC 310 (S201).

Then, the GSM MSC 310 transmits the 'SRI' to the GSM HLR 320 (S203). Here, 'SRI' is used to perform 'Send Routing Information' among GSM MAP operations and is used by the originating exchange to inquire the location of the called subscriber to the HLR.

Then, the GSM HLR 320 transmits the 'PRN' including the calling number to the CDMA IRGS 220 (S205). Here, the 'PRN' is transmitted to obtain routing information to the exchange where the HLR is located at the called party.

Then, the CDMA IRGS 220 stores the received call number (S207).

FIG. 5 is a flowchart illustrating a process in which a CDMA system processes an incoming call received from a GSM system according to a second embodiment of the present invention, and includes a calling number in a PRN (Provide Roaming Number, hereinafter referred to as 'PRN'). This is a flowchart showing a process of processing an incoming call when it is not.

Referring to FIG. 5, first, the GSM subscriber station (calling terminal) 100b makes a call to the GSM MSC 310 (S301).

Then, the GSM MSC 310 transmits the 'SRI' to the GSM HLR 320 (S303).

Then, the GSM HLR 320 transmits the 'PRN' not including the calling number to the CDMA IRGS 220 (S305).

Then, the CDMA IRGS 220 allocates a random number (Mobile Subscriber Roaming Number, MSRN) to the roaming GSM subscriber station 100a that is the call destination.

The random number allocated in step S307 is set to be transmitted as 'LOR' to the CDMA IRGS 220 and transmitted to the GSM HLR 320 through 'PRN ack' (S309). Here, 'LOR' is used to perform the 'Location Request' in the CDMA MAP operation, which is used by the originating exchange to inquire the location of the called subscriber to the HLR.

Then, the GSM HLR 320 receiving the 'PRN ack' transmits the 'SRI ack' to the GSM MSC 310 (S311).

Then, the GSM MSC 310 transmits to the CDMA PGS 230 including the calling number in the 'IAM (Initial Address Message) (hereinafter referred to as' IAM') (S313). Here, 'IAM' is a message transmitted to receive a call between exchanges.The exchange that receives 'IAM' analyzes the Called Party Number of 'IAM' and inquires 'LOR' to HLR. Decide whether or not to penetrate.

Then, the CDMA PGS 230 transmits the 'LOR' set as the calling number included in the random number and the calling number included in the 'IAM' to the CDMA IRGS 220 (S315).

Then, the CDMA IRGS 220 stores the received call number (S317).

On the other hand, the roaming state of the roaming GSM subscriber station 100a may be in a 'power off' state, in a 'busy' state, in a 'out of service area' state, and in the roaming GSM subscriber station 100a. It may include any one case selected from among cases in which 'unsubscribe' is set. Hereinafter, a process of providing outgoing information for each unreachable state will be described.

First, FIG. 6 is a flowchart illustrating a process of providing outgoing information on an unsigned signal of a roaming GSM subscriber station by a CDMA system according to a first embodiment of the present invention. This is the case in 'Off' state.

Referring to FIG. 6, the roaming GSM subscriber station 100a attempts to 'power off' the CDMA MSC 210 (S401).

Then, the CDMA MSC 210 transmits 'MS_INACTIVE' to the CDMA IRGS 220 (S403). Here, 'MS_INACTIVE' is to perform 'MS Inactive' in the CDMA MAP operation and is used to inform the HLR that the terminal is 'Power Off'.

Then, the CDMA IRGS 220 manages the 'Power Off' state of the roamed GSM subscriber station 100a (S405).

The MS_INACTIVE ack is transmitted to the CDMA MSC 210 (S407).

 Subsequently, when an incoming call is requested to the roamed GSM subscriber station 100a in the 'Power Off' state, the step is divided into routing request information, that is, a case in which a calling number is included in the PRN and a case in which the call is not included (S409). Or the step (S411) is performed.

In this case, in step S409, after the GSM MSC 310 receives the 'SRI ack' from the GSM HLR 320, the roaming GSM subscriber station 100a transmits an announcement for the 'Power Off' state. (S409g).

In addition, after the CDMA IRGS 220 stores the calling number in step S411, the CDMA IRGS 220 transmits the CDMA PGS 230 including the 'Power Off' state of the roaming GSM subscriber station 100a to 'LOR ack'. (S411j). Then, the CDMA PGS 230 transmits 'Release' to the GSM MSC 310 (S411k). Here, 'Release' is used to perform 'Insert Subscriber Data' in GSM MAP operation and is used to transmit to the originating MSC when the call is terminated.

Thereafter, when the roamed GSM subscriber station 100a in the 'Power Off' state is 'Power On', the location registration procedure is performed (S413, S415, S417, S419).

When the location registration is completed, the CDMA IRGS (220) checks whether the roamed GSM subscriber station (100a) is to provide the source information (S421).

As a result of the check, when the roaming GSM subscriber station 100a is the source information to be provided, the language of the corresponding country of the roaming GSM subscriber station 100a is checked and stored in the step S409 or the step S411. In step S423, an SMS including the calling number and the calling time is configured in the language.

The CDMA IRGS 220 transmits 'SMDPP' to the CDMA MSC 210 (S425). Here, 'SMDPP' is used to perform 'Short Message Delivery Point to Point' and is used to transmit SMS between MSC and SMSC in CDMA MAP operation.

Then, the CDMA MSC 210 transmits the SMS to the roamed GSM subscriber station 100a to receive a response, and transmits a 'SMDPP ack' to the CDMA IRGS 220 (S427, S429, and S431).

FIG. 7 is a flowchart illustrating a process of providing outgoing information on an unsigned signal of a roaming GSM subscriber station in a CDMA system according to a second embodiment of the present invention. This is the case when 'ADR = Busy' is received in response to a routing request from the exchange. Here, 'ADR = Busy' determines whether the exchange state of the called subscriber is busy, busy, 'power off' or 'IDLE' using the value indicating the current state of the subscriber in the subscriber profile. When the state of the called subscriber is in a call, when the 'ROR' is received from the HLR, 'ROR ACK' is transmitted.

Referring to FIG. 7, step S501 or step 503 is performed in the same manner as described in FIG. 6 by dividing the PRN into a case in which the calling number is included and the case in which the PRN is not included.

Thereafter, the CDMA IRGS 220 transmits a 'ROR' to the CDMA MSC 210 (S505). At this time, 'ROR' is to perform a 'Routing Request' is transmitted by the HLR to obtain routing information to the exchange where the destination subscriber is located.

By the way, when the state of the roamed GSM subscriber station 100a checked by the CDMA MSC 210 is Busy, it transmits to CDMS IRGS 220 by setting 'ADR = Busy' to 'ROR ack'. (S507).

Then, the CDMA IRGS 220 sets 'busy' to 'LOR ack' and transmits it to the CDMA PGS 230 (S509), and the CDMA PGS 230 transmits 'Release' to the GSM MSC 310. (S511).

Then, by checking the language of the corresponding country of the roaming GSM subscriber station (100a) to generate outgoing information including the calling number, calling time, etc. stored in the step (S501) or step (S503) in the language as SMS And transmits to the roamed GSM subscriber station (100a) (S513, S515, S517, S519, S521). In this case, the steps S513, S515, S517, S519, and S521 are similar to those of FIG. 6, and thus description of detailed procedures will be omitted.

FIG. 8 is a flowchart illustrating a process of providing outgoing information on an unsigned signal of a roaming GSM subscriber station in a CDMA system according to a third embodiment of the present invention. This is the case when 'no call' is set in the terminal by the GSM subscriber, that is, when 'NO_PAGE RESPONSE' is received.

Here, the case of 'out of service area' refers to a case where the roamed GSM subscriber station is located in a 'shaded area', and the case of 'rejection call' refers to a 'incoming call' when a roaming GSM subscriber does not want to make a call. 'Refused' is set.

When the roaming GSM subscriber sets the call rejection to the terminal and normal call connection is not established, the mobile communication network recognizes that the GSM subscriber station 110a is out of the service area, and thus the unreachable state is out of the service area. In the case of the call processing and the case where the 'do not call' is set in the terminal is the same. Therefore, FIG. 8 illustrates a case where a GSM subscriber sets 'Don't Reject' on a terminal and a call processing process of 'Out of Service Area'.

Referring to FIG. 8, as in FIG. 6 and FIG. 7, the step S601 or the step 603 is performed by dividing the PRN into a case in which the calling number is included and the case in which the PRN is not included.

In this case, when the CDMA IRGS 220 transmits a 'ROR' to the CDMA MSC 210 (S605) and receives a 'ROR ack' including the TLDN (S607), the CDMA PGS (including the TLDN) is included in the 'LOR ack'. 230 and transmits 'IAM' to the CDMA MSC 210 in step S603 (S611).

Subsequently, when the CDMA MSC 210 requests the 'Page Request' to the roaming GSM subscriber station 100a (S613) but fails to receive the 'Page Response', the 'Redirection Reason' of the Transfer To Number Request (TTNR) is' No Page Response 'is set and transmitted to the CDMA IRGS 220 (S615).

Then, the CDMA IRGS 220 recognizes that the incoming failure due to the service area departure of the roamed GSM subscriber station (100a) and transmits' TTNR ack 'to the CDMA MSC (210) and the CDMA MSC (210)' Release 'is transmitted to the GSM MSC 310 (S617, S619).

Thereafter, when the roaming GSM subscriber station 100a performs location registration and completes location registration (S632, S623, S625, S627), the CDMA IRGS 220 roams the GSM subscriber station 100a to provide outgoing information. Check whether it is a target (S629).

As a result of the check, when the roaming GSM subscriber station 100a is the source information to be provided, the language of the corresponding country of the roaming GSM subscriber station 100a is checked and stored in the step S601 or the step S603. The SMS including the calling number and the calling time is generated and transmitted to the roaming GSM subscriber station 100a by generating the SMS configured in the language (S631, S633, S635, S637, and S639). In this case, the steps S631, S633, S635, S637, and S639 are also similar to those of FIGS. 6 and 7, and thus, detailed description of the procedure will be omitted.

The embodiments of the present invention described above are not implemented only through the apparatus and the method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded. Implementation may be easily implemented by those skilled in the art from the description of the above-described embodiments.

The scope of the present invention is not limited to the above-described embodiments, but various modifications and improvements of those skilled in the art using the basic concept of the present invention as defined in the following claims are also within the scope of the present invention.

According to the above configuration, it can be expected that the GSM roaming subscriber of the CDMA network notifies the incoming call by SMS to facilitate the convenience of the subscriber roaming into the CDMA network.

In particular, since overseas mobile communication is mainly GSM, when an overseas GSM subscriber roams into a domestic CDMA network, an incoming call is often failed due to a time difference between the overseas GSM subscriber's home network. In addition, sales can be expected to increase by inducing calls from overseas GSM roaming subscribers.

In addition, MAP operation is simple because SMSC is not used.

Claims (13)

In the international roaming gateway system for providing an overseas roaming service in the first mobile communication network to the subscriber station of the second mobile communication network roamed to the first mobile communication network, A location register configured to set and store a trigger for providing outgoing information when a call fails in a subscriber profile received from the second mobile communication network; In response to the roaming number confirmation request received from the second mobile communication network to establish a call termination for the subscriber station, the caller checks whether the calling number is included and transmits a randomly assigned roaming number when the calling number is not included. A calling number management unit which obtains a number and stores calling information consisting of the obtained calling number or the calling number included in the roaming number confirmation request; And In case the call is unsuccessful to the subscribing terminal, the originating information provider for checking the local language of the subscribing terminal and configuring and transmitting the stored caller information in the confirmed language. International roaming gateway system comprising a. The method of claim 1, wherein the location registration unit The international roaming gateway system, characterized in that the parameter for location registration includes an International Mobile Subscriber Identify (IMSI) parameter consisting of a mobile country code (MCC), a mobile network code (MCC), and a mobile subscriber identity number (MSIN). According to claim 2, wherein the calling information providing unit A confirmation module for confirming a language of a corresponding country of the subscriber station by using a mobile network code (MNC) and a mobile subscriber identity number (MSIN) included in an IMSI parameter of the location register; And SMS generation module for configuring the calling information including the calling number in the language and transmitting it to the subscriber station through SMS (Short Message Service) International roaming gateway system comprising a. According to claim 1, wherein the calling number management unit An international roaming gateway system receiving an originating number included in an initial address message (IAM) message through a location requeest (LOR) message when the originating number is not included in the routing request information. In the method of performing the location registration in the international roaming gateway system for providing a foreign roaming service in the first mobile communication network to the subscriber station of the second mobile communication network roaming overseas to the first mobile communication network, (a) receiving a location registration request from the subscription terminal; (b) requesting a location registration of the subscribing terminal to the second mobile communication network and receiving a subscriber profile of the subscribing terminal; And (c) setting and storing a trigger in the subscriber profile which causes the provision of outgoing information when a call is unsuccessful Location registration method comprising a. The method of claim 5, wherein the parameter for location registration received in step (a) is a mobile country code (MCC), a mobile network code (MCC), and a mobile MSIN. includes an International Mobile Subscriber Identify (IMSI) parameter consisting of subscriber Identity Numbers, Wherein the MNC and the MSIN location registration method characterized in that it comprises information for determining the country and the operator network of the subscriber station. In the roaming service providing method for providing outgoing information on the unreceived call from the second mobile communication network to the subscriber station of the second mobile communication network roamed overseas to the first mobile communication network, (a) receiving, by the international roaming gateway system located in the first mobile communication network, a roaming number confirmation request for call establishment for the subscriber station from the second mobile communication network; (b) confirming whether or not a calling number is included in the received roaming number confirmation request; (c) acquiring a calling number by transmitting a randomly assigned roaming number if the calling number is not included as a result of the checking; (d) storing the calling information consisting of the calling number received through step (a) or the calling number obtained through step (c); And (e) if the call is unsuccessful to the subscribing terminal, checking the local language of the subscribing terminal, and transmitting and configuring the calling information stored in the step (d) in the checked language. Roaming service providing method comprising a. The method of claim 7, wherein step (e) Checking a country and a language of the country by checking a mobile network code (MNC) and a mobile subscriber identity number (MSIN) included in an IMSI parameter for location registration when registering a location of the subscriber station; And Transmitting outgoing information including the outgoing number configured in the checked language to the subscriber station through SMS; Roaming service providing method comprising a. The method of claim 8, wherein the unreachable state is When the subscriber station is in the 'power off' state, the 'calling' state, the 'service area out of the state' and the case of 'unsubscribe' is set in the terminal characterized in that it includes any one selected How to provide roaming service. The method of claim 9, wherein step (e) Performing location registration in one of a case in which the unreachable state is 'power off', in case of 'out of service area' and in case of 'unsubscribe' is set in the terminal; Checking whether to set a trigger for providing calling information to the subscriber profile when registering the location; And Confirming a language of a corresponding country of the subscriber station when the trigger for providing the calling information is set as the result of the checking, and transmitting calling information including the calling number; Roaming service providing method comprising a. The method of claim 9, wherein step (e) Transmitting a message for ending a call to the second mobile communication system when the unreachable state is 'in a call'; And Confirming a language of a corresponding country of the subscriber station and transmitting outgoing information including the outgoing number; Roaming service providing method comprising a. The method of claim 7, wherein step (c) Setting a random number (MSRN, Mobile Subsriber Roaming Number) for the subscribing terminal that is the target of the routing request when the calling number is not included as a result of the checking; Transmitting a response to the routing request information (PRN) including the set random number (MSRN, Mobile Subsriber Roaming Number); And Receiving the caller number requesting the routing through an IAM (Initial Address Message) message and a Location Requeest (LOR) message Roaming service providing method comprising a. The method according to any one of claims 7 to 12, And wherein the first mobile communication system is a Code Division Multiple Access (CDMA) system and the second mobile communication system is a Global System for Mobile Communications (GSM) system.

Images