KR100822661B1 - Roaming service system and method for granting a roaming area telephone number - Google Patents

Abstract

The present invention provides a roaming service system for granting roaming users a local number of a roaming network to grant a roaming area telephone number so that incoming calls and SMS receptions can be made at low cost for incoming calls and SMS reception in the roaming network; The method of the present invention relates to a roaming service method of a roaming service system for assigning a phone number of a roaming area including an MSC and an HLR, an SMSC, a GLR, a roaming HLR, a roaming SCP, and an SS7 / MAP processing unit. As the inbound roaming user turns on the terminal power, the roaming HLR automatically creates an account of the user in association with the GLR and assigns a roaming area code, and the user who has successfully registered a new location in the first step. A second step of transmitting a short message or a voice message for the roaming area code to which the roaming HLR is assigned to the user The third step in which the GLR automatically sets an intelligent network trigger on the MSC, the fourth step in which roaming users call into the roaming area code, and the roaming area number identifies the caller when the roaming user calls into the roaming area. And a fifth step of displaying a number (CID) and a sixth step of the roaming user forwarding an SMS to a roaming area code.

MSC, HLR, GLR, SMSC, SS7 / ISUP Processing Unit

Description

Roaming service system and method which provides local number

1 is a detailed flowchart illustrating a process of receiving a call from a called terminal by the calling terminal when both the calling terminal and the called terminal are in a roaming network according to the related art.

Figure 2 is a schematic diagram showing the overall configuration of a roaming network system in a mobile communication network to which the roaming system according to the present invention is applied.

3 is a block diagram showing a detailed configuration of a roaming system according to an embodiment of the present invention.

4 is a detailed flowchart illustrating a location registration procedure when an inbound roaming user turns on a terminal in a roaming service method according to the present invention;

5 is a detailed flowchart illustrating a process of receiving a call received by a roaming user from a roaming area code in a roaming service method according to the present invention;

FIG. 6 is a detailed flowchart illustrating a process of displaying an assigned area code on a CID when a roaming user calls a roaming area number in a roaming service method according to the present invention.

7 is a detailed flowchart illustrating a process for a roaming user receiving an SMS of a roaming area number in a roaming service method according to the present invention;

<Code Description of Main Parts of Drawing>

10: MSC (Exchange) 20: HLR (Home Location Register)

30: SMSC (Text Message Service Center) 40: GLR (Gateway Location Register)

50: roaming system 51: roaming HLR

52: Roaming SCP 60: Home Network GLR

70: home network MSC 80: home network HLR

90: Home Network SMSC 100: International Roaming Network

The present invention relates to a roaming service system and method, and in particular, to provide a service for automatically granting an area code of a visited network and receiving an SMS or a call in a roaming area with a corresponding number when another network subscriber is inbound roaming. The present invention relates to a roaming service system and a method for granting a roaming area number.

In general, in a plurality of networks operated by different operators, a visitor network is a service area of a home network in a home network. Network, the visitor network acquires the location information of the terminal moved from the home network and makes a call service for the terminal based on the acquired information. The service is being provided.

However, the conventional roaming service has to be linked to the home network always has the disadvantage of expensive international calls or international SMS costs in order to receive SMS or call in the roaming network. In particular, when both outgoing and incoming calls are in the roaming network, the caller must make an international call to the roaming home network, and the called party must receive a call connected to the international call from the home network.

1 is a detailed flowchart illustrating a process in which a calling terminal receives a call from a called terminal when both the calling terminal and the called terminal are in a roaming network according to the related art. Referring to FIG. The problems of the technology will be described in detail as follows.

First, in the roaming network, the caller presses the international telephone number 001-82-10-123-1234 to dial 010-123-1234. (S101) Accordingly, the international call is connected to the MSC of the home network (S102). In addition, the home network MSC sends a LocReq location inquiry message to the corresponding HLR. (S103) Then, the home network HLR confirms that the international roaming, and sends a LocReq message to the GLR (S104), the home network GLR through the international roaming network GLR of the roaming network In step S105, the roaming network GLR sends a RouReq message to an exchange in which the called terminal is located to obtain a TLDN (S106 to S107), and the TLDN obtained in the step is again a roaming network GLR, a home network GLR, The home network MSC is transmitted to the home network MSC through the home network HLR. (S108-S110) Then, the home network MSC confirms that the TLDN is an international number and connects the call to the destination exchange of the roaming network through international call setup (S111). The destination exchange connects the call to the called terminal. Is. (S112)

Therefore, according to the above, when making a call in a roaming network according to the prior art, since the international telephone call setup is required for both outgoing and incoming calls, there is a disadvantage in that the international call cost is doubled.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a roaming user with an area code of a roaming network, so that the incoming call and SMS reception in the roaming network are not international call charges but low cost. The present invention provides a roaming service system and method for assigning a phone number of a roaming region to make a call.

The apparatus of the present invention for achieving the above object is configured to include the MSC, HLR, SMSC, GLR, roaming network system in a mobile communication network using the SS7 protocol, to manage the location information of roaming users (subscribers) Roaming HLR, roaming SCP providing intelligent network service, SS7 / MAP processing unit for interworking with the SS7 network is characterized in that it is made.

The method of the present invention for achieving the above object is a roaming service method of a roaming service system for granting a roaming area phone number comprising MSC and HLR, SMSC, GLR, roaming HLR, roaming SCP, SS7 / MAP processing unit In the first step, the roaming HLR automatically creates an account of the user in association with the GLR and assigns a roaming area number as the inbound roaming user turns on the terminal. A second step of transmitting a short message or a voice message to the roaming area number to which the roaming HLR has been granted to the user who successfully succeeds, the third step of the GLR automatically setting an intelligent network trigger to the MSC, and the roaming user to roam The fourth step of calling the area code, and when the roaming user calls into the roaming area, the roaming area code is displayed as a caller identification number (CID) Characterized by the step 5, a roaming user to yirueojim and a sixth step of forwarding the SMS to the roaming area code.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts will be omitted so as not to deviate from the gist of the present invention.

2 is a block diagram schematically showing the overall configuration of a roaming network system in a mobile communication network to which a roaming system according to the present invention is applied.

Referring to FIG. 2, a roaming network system in a mobile communication network to which the present invention is applied may include a switch (Mobile Switching Center: "MSC") 10 and a Home Location Register ("HLR"). (20), Short Message Service Center (hereinafter referred to as "SMSC") 30, Gateway Location Register (hereinafter referred to as "IP") 40 and roaming system according to the present invention ( 50).

The MSC 10 includes a visitor location register (VLR) and processes mobile communication subscriber calls in conjunction with the HLR 20 and the SMSC 30. In particular, although not shown in detail in the drawings, the MSC 10 includes a plurality of MSCs, such as the originating MSC 10-1 and the terminating MSC 10-2, depending on the connection relationship between the calling terminal and the called terminal. It will be described on the premise that the configuration including.

The HLR 20 is a database that is connected to the MSC 10 and the SMSC 30 to manage various types of information of mobile subscribers. The HLR 20 works with a plurality of MSCs 10 to perform a function such as subscriber location registration and mobile communication. It stores the permanent information and location information of the terminal and subscriber, and interacts with the SMSC 30 to support various functions related to call processing and additional services. In particular, the HLR 20 stores triggering information according to a service used by a subscriber.

The SMSC 30 is a device for controlling a short message service in a mobile communication network. The SMSC 30 stores a short message and transmits a message to a called terminal through interworking with the MSC 10 and the HLR 20.

The GLR 40 provides a roaming service by interworking with an HLR 80 of a home network and an HLR 20 of a roaming network through an international roaming network for international roaming.

Roaming system 50 according to the present invention is largely registered roaming user, roaming HLR 51 for managing the location information of roaming user (subscriber), roaming SCP (52) for providing intelligent network service, SS7 network which is a common part SS7 / MAP processing unit 53 for interworking with the roaming HLR 51 and roaming SCP 52 is an existing configuration including the MSC (10), HLR (20), SMSC (30) Roaming network system in mobile communication network is connected by SS7 protocol.

3 is a block diagram showing a detailed configuration of a roaming system according to an embodiment of the present invention.

Referring to FIG. 3, a roaming system 50 according to an embodiment of the present invention roams including an HLR function unit 51-1 and a roaming subscriber DB 51-2 for performing a location registration and call processing function. Interworking with the roaming SCP 52 including the HLR 51, the SCP function 52-1 for intelligent network trigger processing, and the interface 52-2 for GLR interworking, and the SS7 network, which is a common part, SS7 / MAP processing unit 53 for.

The roaming service method according to an embodiment of the present invention configured as described above will be described in detail with reference to FIGS. 4 to 7.

4 is a detailed flowchart illustrating a location registration procedure when an inbound roaming user turns on a terminal in a roaming service method according to the present invention.

First, when the power of the user terminal is turned on (S401), the MSC 10 confirms that the corresponding station number is a roaming subscriber and then sends a location registration message (RegNot) to the GLR 40 (S402), the GLR 40 is roaming internationally The location registration message is transmitted to the GLR 60 of the home network through the network. (S403) Then, the GLR 60 of the home network sends a location registration message to the HLR 80 of the home network where the roaming user is registered (S404). , HLR 80 of the home network performs a subscriber authentication procedure. As a result of performing the authentication, if the roaming user is a normal subscriber, the HLR 80 of the home network passes the GLR 60 of the home network to the GLR 40 of the roaming network via the international roaming network 100 (RegNot ACK). (S405 ~ S406) Then, the GLR (40) of the roaming network is added to the trigger data for intelligent network processing to the profile data of the transmitted location registration success message to be transmitted to the MSC (10) (S407), The intelligent network trigger information is used to set the CID information to the assigned area code when the roaming user originates to the roaming area code. Subsequently, the GLR 40 of the roaming network transmits location registration information including the number information of the subscriber MIN, MDN, IRM, IMSI, etc. to the roaming HLR 51 to give the roaming area number to the roaming subscriber (S408). After receiving the location registration information, the roaming HLR 51 automatically selects and assigns an unused number from the allocated area code pool and manages a mapping table. (S409) Then, the roaming HLR 51 Transmits a location registration information reception success message to the GLR 40 (S410) and a roaming congratulatory message to the subscriber terminal (for example, "Welcome to roaming. You have been given an area code XXX-XXXX, and this number You can use the phone and SMS. Please use. "), And the roaming congratulatory message can be sent as a short message or a voice message. Accordingly, the user receives the short message or the voice message and can know that the area code has been assigned to the user (S411 to S413).

5 is a detailed flowchart illustrating a process of receiving a call received by a roaming user from a roaming area code in a roaming service method according to the present invention.

First, it is assumed that the called party is subscribed to the roaming service according to the present invention and has the original 010-123-1234 number, and the roaming area number is 095-123-1234. The caller dials roaming area code 095-123-1234 (S501), and the originating MSC 10-1 confirms that the station number is assigned to roaming HLR 51 and sends a LocReq location inquiry message to the roaming HLR. (S502). Then, the roaming HLR 51 searches the DB table for the number of the home network mapped to 095-123-1234 (S503), and as a result of the search, the roaming area code 095-123. When 010-123-1234 is found mapped to -1234, the LocReq location inquiry message for the number is transmitted to the GLR 40. (S504) The GLR 40 then sends a RouReq message to the destination MSC 10-2. Obtain a TLDN from the terminating MSC (10-2) (S505 ~ S506). Then, the GLR 40 transmits the TLDN to the roaming HLR (51) (S507), roaming HLR (51) is the originating MSC (S508), the originating MSC (10-1) by the TLDN connects the call to the destination MSC (10-2) (S509), the call is connected to the destination terminal accordingly (S510)

FIG. 6 is a detailed flowchart illustrating a process of displaying an assigned area code on a CID when a roaming user calls a roaming area number in a roaming service method according to the present invention.

First, if a caller who has subscribed to a roaming service according to the present invention and has an original 010-123-1234 number and a roaming area code of 095-123-1234 makes a call to a caller of 095-123-2000 that is a number in the same roaming area, (S601) The originating MSC 10-1 sends an ORREQ message to the roaming SCP 52 by the intelligent network trigger. (S602 to S603) At this time, the intelligent network trigger is set by the GLR 40 in the location registration process. . Subsequently, the roaming SCP 52 searches the DB with the call number 010-123-1234 and finds 095-123-1234, which is an assigned roaming area number (S604), and the called number is the same network number. Therefore, the originating number is modified to 095-123-1234 in the ORREQ response message and transmitted to the originating MSC 10-1. (S605) Accordingly, the originating number in the call processing procedure after the step S605 is original. The roaming area number 095-123-1234 is displayed instead of the number, and 095-123-1234 number is displayed as CID on the called terminal when the incoming call is processed. (S606 ~ S611)

7 is a detailed flowchart illustrating a process of receiving a SMS by a roaming user in a roaming area number in a roaming service method according to the present invention.

First, a roaming area code 095-123- that is not a telephone number of a home network to a caller who is subscribed to a roaming service according to the present invention and has an original 010-123-1234 number and a roaming area code of 095-123-1234 If the SMS is sent to 1234 (S701), the message is stored in the SMSC 30 via the originating MSC 10-1. (S702) The SMSC 30 then informs the roaming HLR 51 of the subscriber status. The SMSREQ operation is sent (S703), the roaming HLR 51 searches the home network number mapped to the 095-123-1234 number, finds the 010-123-1234 number (S704), and sends the SMSREQ to the GLR 40. The subscriber location information for the number is queried (S705). Then, the GLR 40 includes the incoming MSC 10-2 information included in the subscriber in the SMSREQ response message and transmits the information to the roaming HLR 51 (S706). The roaming HLR 51 transmits the response message to the SMSC 30 again (S707). The SMSC 30 then forwards the corresponding destination MSC 10-2. Hit is sent to the called party the SMS. (S708 ~ S710)

Meanwhile, in the embodiment of the present invention described above, the roaming system 50 including the roaming HLR 51, the roaming SCP 52, and the SS7 / MAP processing unit 53 is a roaming network system separately from the existing GLR 4. Although described on the premise that it is configured in addition, in another embodiment of the present invention, the roaming HLR 51, the roaming SCP 52, and the SS7 / MAP processing unit 53 may be implemented by being included in the existing GLR 4. It is.

What has been described above is only one embodiment for implementing a roaming service system and method for assigning a phone number in a roaming area according to the present invention, and various substitutions and modifications within the scope of the technical idea of the present invention, The present invention is not limited to the above-described embodiments and the accompanying drawings because modifications are possible.

As described above, the present invention has an effect of providing a call service in a roaming network at a low cost by allocating an area code in a roaming network to receive a call and SMS incoming service.

Claims (10)

Roaming network MSC (10, 10-1, 10-2), HLR 20, SMSC (30), GLR (40), home network GLR (60), MSC (70), HLR (80) In the roaming network system in a mobile communication network using the SS7 protocol, Roaming HLR 51 for managing the location information of the roaming user, Roaming SCP (52) providing intelligent network services, Roaming service system for assigning a phone number of the roaming region, characterized in that it comprises a SS7 / MAP processing unit 53 for interworking with the SS7 network. The roaming HLR 51 of claim 1, wherein A roaming service system for assigning a phone number of a roaming area, comprising an HLR function unit 51-1 and a roaming subscriber DB 51-2 for performing location registration and call processing functions. The method of claim 1, wherein the roaming SCP 52, Roaming service system for assigning a phone number of the roaming region, characterized in that it comprises a SCP function unit 52-1 for intelligent network trigger processing and the interface unit 52-2 for GLR interworking. Roaming network MSC (10, 10-1, 10-2), HLR 20, SMSC (30), GLR (40), home network GLR (60), MSC (70), HLR (80) In the roaming network system in a mobile communication network using the SS7 protocol, The GLR 40 of the roaming network, Roaming HLR 51 for managing the location information of the roaming user, Roaming SCP (52) providing intelligent network services, Roaming service system for assigning a phone number in the roaming region, characterized in that further comprises a SS7 / MAP processing unit 53 for interworking with the SS7 network. Roaming network MSC (10, 10-1, 10-2), HLR (20), SMSC (30), GLR (40), roaming HLR (51), roaming SCP (52), SS7 / MAP processing unit (53) And a roaming service method of a roaming service system for assigning a phone number of a roaming area including a GLR 60, an MSC 70, and an HLR 80 of a home network, A first step in which the roaming HLR 51 performs a subscriber authentication procedure in association with the GLR 40 and gives a roaming area code as the inbound roaming user turns on the terminal power; A second step in which roaming users forward calls to roaming area codes; A third step in which the roaming area code is displayed as a caller identification number (CID) when a roaming user calls into the roaming area; A roaming service method for assigning a phone number of a roaming area, characterized in that the roaming user comprises a fourth step of sending an SMS to a roaming area code. The method of claim 5, wherein the first step, When the power of the user terminal is turned on, the MSC 10 confirms that the corresponding station number is a roaming subscriber, and then transmits a location registration message (RegNot) to the GLR 40; When the GLR 40 transmits the location registration message to the HLR of the home network via the GLR 60 of the home network through the international roaming network, steps 1-2 of the HLR 80 of the home network perform a subscriber authentication procedure; , As a result of performing the authentication in step 1-2, if the roaming user is a normal subscriber, the HLR 80 of the home network is successfully registered with the GLR 40 of the roaming network through the international roaming network via the GLR 60 of the home network. Steps 1 to 3 transmitting a message (RegNot ACK), Steps 1-4, wherein the GLR 40 adds outgoing trigger information for intelligent network processing to the profile data of the location registration success message and transmits it to the MSC; Steps 1-5, wherein the GLR 40 transmits the location registration information including the number information of the subscriber MIN, MDN, IRM, IMSI, etc. to the roaming HLR 51 to give the roaming area number to the roaming subscriber; Steps 1 through 6 in which the roaming HLR 51 automatically selects and assigns an unused number from the allocated area code pool after receiving the location registration information, and manages a mapping table; Roaming area telephone comprising the steps 1-7 of the roaming HLR 51 transmits the location registration information reception success message to the GLR 40 and at the same time to send a roaming congratulatory message to the subscriber station; Roaming service method to number. The method of claim 6, The roaming congratulatory message of step 1-7 is a roaming service method for assigning a phone number of a roaming region, characterized in that the short message or a voice message. The method of claim 5, wherein the second step, When the caller dials the roaming area code of the roaming user (called party), step 2-1 of the calling MSC 10-1 confirms that the station number is assigned to the roaming HLR 51 and transmits a LocReq location inquiry message. The roaming HLR 51 searches the DB table for the number of the home network mapped to the roaming area code, and if it finds the number of the home network mapped to the roaming area code, transmits a LocReq location inquiry message for the number to the GLR. Steps, Step 2-3 in which the GLR 40 sends a RouReq message to obtain a TLDN from the destination MSC 10-2, and the TLDN is transmitted to the originating MSC 10-1 via the roaming HLR 51; Roaming characterized in that it comprises the step 2-4, the originating MSC (10-1) by the TLDN to connect the call to the destination MSC (10-2), and thus the call is connected to the destination terminal of the roaming user Roaming service method to give a local phone number. The method of claim 5, wherein the third step, When a roaming user (sender) calls another roaming user (sender) within the same roaming area using the roaming area code, the originating MSC 10-1 sends an ORREQ message to the roaming SCP 52 by an intelligent network trigger. Step 3-1, Roaming SCP (52) searches the DB with the calling party's calling number, finds the roaming area number assigned to the calling party, modifies the calling number in the ORREQ response message to the roaming area number, and sends it to the calling MSC 10-1. Step 3-2, In the call processing procedure after the step 3-2, the calling number is indicated by the roaming area code instead of the original number of the caller, and when the incoming call is processed, the called party's roaming area number is indicated by the CID on the called terminal. Roaming service method for giving a phone number of the roaming area, characterized in that consisting of -3 steps. The method of claim 5, wherein the fourth step, When a roaming user (sender) sends a text message (SMS) to another roaming user (sender) in the same roaming area using the roaming area code, the text message is sent to the SMSC 30 via the originating MSC 10-1. Stored step 4-1; Step 4-2 in which the SMSC 30 transmits an SMSREQ operation to the roaming HLR 51 for the subscriber status; Step 4-3, wherein the roaming HLR 51 retrieves the home network number mapped to the roaming area code of the called party, sends an SMSREQ to the GLR 40, and inquires the subscriber location information about the searched home network number; The GLR 40 includes the incoming MSC 10-2 information to which the called party belongs in the SMSREQ response message and transmits the information to the roaming HLR 51, and the roaming HLR 51 transmits the response message to the SMSC 30 again. Steps 4-4, And a 4-5 step of the SMSC (30) transmitting the SMS to the called party through the corresponding MSC (10-2).

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