KR100706950B1 - Method and System for Controlling Supplementary Service in Zone Based Virtual Private Network by Using Mobile Communication System - Google Patents

Abstract

The present invention relates to a method and system for providing a region-based virtual private network service using a mobile communication system utilizing an intelligent network and controlling an incoming call additional service in the region-based virtual private network service.

The present invention includes the steps of: (a) receiving an outgoing signal from the calling MS at the calling MSC and requesting a ZB VPN service to the calling HLR; (b) receiving an analysis information request signal from an originating MSC along with an originating service feature indicator (OSFI) to determine whether to provide a ZB VPN service; (c) identifying the location of the calling MS and the called MS; (d1) determining whether the location of the calling MS identified in step (c) is located in a ZB VPN service area; (d2) when the determination result of step (d1) indicates that the location MS of the calling MS is not located in the ZB VPN service area, transmitting an analysis information response signal to the calling MSC to refuse to provide the ZB VPN service; (d3) determining whether the location of the called-party MS identified in step (c) is located in the ZB VPN service area; (d4) if the location of the called MS is not located in the ZB VPN service area as a result of the determination of step (d3), transmitting an analysis information response signal to the calling MSC to attempt a call using a general switching network; (d5) If the location of the calling MS is located in the ZB VPN service area as a result of the determination in step (d2), and if the location of the called MS is located in the ZB VPN service area, as a result of the determination in step (d4), Sending an analysis information response authorizing ZB VPN service provision to the side MSC; (e) establishing a call between the calling MSC and the called MSC; (f1) receiving, at the called party's HLR, a Transfer to Number request signal from the called party's MSC requesting the called supplementary service along with the OSFI; (f2) confirming that the OSFI received in step (f1) instructs the ZB VPN service in the called party HLR, and determining whether the called party MS is subscribed to the called supplementary service; (f3) as a result of the determination in step (f2), when the called party MS is subscribed to the called supplementary service, determining whether the called supplementary service is a service that is charged separately at the called party's HLR; (f4) if the terminating additional service is a service that is charged separately, as a result of the determination in step (f3), generating a voice announcement message using the terminating MSC at the terminating HLR and refusing to provide the ZB VPN service; And (g) if the called supplementary service is a service for which no additional fee is charged as a result of the determination in step (f3), voice and data communication is provided through call setup between the calling MS and the called MS. And sending the call result to the calling MSC after the termination.

According to the present invention, a mobile communication subscriber can perform voice and data communication using an extension number at a discount or for free using a mobile communication terminal, and can appropriately control an incoming additional service that is charged separately. .

ZB VPN Service, Call Forwarding Service, Service Control Point, SCP

Description

Method and System for Controlling Supplementary Service in Zone Based Virtual Private Network Service using Mobile Communication System

1 is a block diagram schematically showing the configuration of a TVA service control system of a ZB VPN service using a mobile communication system according to an embodiment of the present invention;

2 is a flowchart illustrating a ZB VPN service registration method according to an embodiment of the present invention;

3A is a flowchart for explaining the first half of a TVA service control method of a ZB VPN service using a mobile communication system according to an embodiment of the present invention;

3b is a flow chart for explaining the middle of the TVA service control method of the ZB VPN service using a mobile communication system according to an embodiment of the present invention;

3C is a flowchart for explaining the second half of the TVA service control method of the ZB VPN service using the mobile communication system according to the preferred embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: MSo 112: MSt

120: calling party wireless access network 122: called party wireless access network

130: MSCo 132: MSCt

140: HLRo 142: HLRt

144: HLRgw 150: ZB VPN SCP

152: IP 160: customer management server

170: LS 180: Internet

190: user terminal

The present invention relates to a method and system for controlling an incoming additional service in a region-based virtual private network service using a mobile communication system using an intelligent network. More specifically, a virtual private network in a service area registered by a mobile subscriber in a mobile communication system utilizing an intelligent network that provides voice and data communication services and various additional services through a mobile communication network using a mobile communication terminal. ), The terminating mobile subscriber is located in the service area in a zone based virtual private network service that not only performs extension communication but also performs voice and data communication at a discount or free rate. The present invention relates to a method and system for controlling a terminating additional service when a terminating value added service is charged.

Early service providers provided various services by adding a server for controlling additional services and a database for managing additional services to the existing mobile communication network consisting of a switch and a transmission device. In this evolution, the concept of Intelligent Network, which combines computer networks and mobile networks, creates and manages new services quickly and conveniently by hierarchically separating simple telephone call connection and complex service control, is gradually being adopted. It became concrete.

As the information society has evolved rapidly, the demand tendency of mobile subscribers has changed rapidly and the necessity of service development by the growth of mobile communication market has necessitated an intelligent network that performs special functions.

The initial intelligent network includes a service control point (SCP) having service control logic at the network level, a service management system (SMS) that manages data required for service provision, an existing exchange and a service control point. It consists of a service switching point (SSP) having a function for connecting.

In addition, since the initial intelligent network has a separate control structure for each service, it is difficult to meet the needs of the service users in a timely manner since the intelligent network system including the service switcher must be changed every time the new service is introduced. In addition, since the initial intelligent network does not have international standards for access standards between systems constituting the network, it is not compatible with mobile communication businesses that provide various additional services using the intelligent network, and therefore, service development and system introduction are not provided. The dependence on the sieve resulted in a loss of competitiveness.

In order to solve the problems of the initial intelligent network, ITU-T is the main agent to prepare international standards for the standardization of the intelligent network, and a separate regional or private standardization group promotes standardization for each field of the intelligent network.

The intelligent network is a transport layer that actually exchanges and transmits communication information such as voice and data around the SSP, an STP-centric signal layer that transfers control signals between intelligent network elements, and controls the demand for intelligent network services generated from the transport layer. It consists of the SCP-centered service layer. Here, the STP (Signaling Transfer Point) is a signal relay exchange, and means a signal point dedicated only to signal message transfer.

A mobile communication system utilizing such an intelligent network provides various supplementary services to a mobile subscriber. Zone Base Billing (e.g., SK Telecom's TTL regional discount plan), Virtual Private Network service (e.g., SK Telecom's VPN Service), and Terminating Value Added service Etc. is an example of an additional service using an intelligent network.

Among these, the regional discount rate service is a discount or free calling service that applies different rates to call charges when the mobile subscriber uses the mobile communication service in a specific region.

This regional discount rate service is performed in the following manner. A mobile communication operator operating a mobile communication system designates a specific area in which a mobile communication service can be provided by a base station of a mobile communication system scattered throughout the country as a service zone in advance. In order to use the regional discount plan service provided by the mobile communication service provider, subscribers select a desired region from the specific region designated by the mobile communication service provider to subscribe to the regional discount plan service.

When the subscription is completed, if the mobile subscriber makes a call by originating or receiving in the region selected by the mobile subscriber, a discounted or free fee is charged compared to when the call is made in other regions.

On the other hand, the virtual private network service is a service that provides a function that can be used conveniently with a simple operation, such as an extension phone of a normal landline telephone. This virtual private network service is performed in the following manner.

The mobile subscribers access the customer management server of the mobile operator to subscribe to the virtual private network service in order to receive the virtual private network service. When the subscription is completed, the mobile service provider designates mobile subscribers joining the same virtual private network as a specific group, and assigns a shortcut number to each mobile subscriber in the designated group. When a mobile subscriber attempts to make a call, the mobile subscriber enters and dials only a shortcut number of a called party that has joined the same virtual private network in place of the existing called mobile phone number.

Lastly, the called supplementary service is based on the called party's circumstances. The called party adds the called party by turning off the mobile terminal, performing voice and data communication with the called party's mobile terminal, or in the area of poor signal or due to a breakdown of the mobile terminal. When there is no response from the mobile communication terminal or the called party has set up call forwarding, it means providing additional services such as call forwarding, automatic connection, voice mail switching, or caller memo service set by the called party.

On the other hand, the local discount rate service and the virtual private network service using the intelligent network in such a mobile communication system has the advantage that in the case of the former, the discount or free call charge is charged only in the region where the caller is located. There is an advantage of simplifying the call during the call between subscribers specified by the same virtual private network.

By combining these two advantages, if multiple mobile subscribers live or work together in a particular area, they can use the local private network service to get discounted or free communication by simply using extension service using virtual private network service. There is a desire of mobile subscribers.

However, it is still possible to integrate local discount rate services and virtual private network services so that mobile subscribers can easily dial out through a virtual private network in a specific area using a speed dial and perform voice and data communications at discounted or free call rates. New mobile telecommunications supplementary services are not available to mobile subscribers through mobile telecommunication systems.

In addition, the called additional service is to provide a separate additional service according to the circumstances of the called party, so that a separate voice and data communication fee is charged. Even the incoming supplementary service can provide voice and data communication at a discount or free rate by a new service that integrates local discount service and virtual private network service. It is against the purpose of the new service to support voice and data communication at the rate of, which gives the subscribers an unreasonable benefit.

Therefore, while performing voice and data communication at a discount or free rate using extension communication in a specific area, the service should be suspended if it is necessary to provide an additional calling service that requires a separate communication fee due to the circumstances of the called party. The need for proper control of is highlighted.

In order to solve this problem, the present invention, in addition to the virtual private network service concept for simply performing an extension call in the mobile communication system by adding a regional discount rate service that charges a discount rate or a free rate for a call in a specific area, When subscribers make a simple call using a virtual private network, they offer discounted or free calls if the caller or called party is located in the same specific area, stops providing the service if the caller is not located in a particular area, and the called party The purpose of the present invention is to provide a service method and system for providing a call to a caller and providing a call using a general switching network instead of an intelligent network if the location is not located in the area.

In addition, it is an object of the present invention to provide a method and system for controlling to stop the provision of services when it is necessary to provide additional incoming services that require a separate communication fee due to the circumstances of the called party.

In order to achieve the above object, according to the first object of the present invention, a calling mobile terminal (MS: Mobile Station, hereinafter referred to as "MS"), a called MS, a calling mobile communication switching center (MSC: Mobile Switching Center) , Called `` MSC ''), called MSC, calling party Home Location Register (HLR), called HLR, gateway HLR, zone-based virtual private network (ZB VPN) Virtual Private Network, hereinafter referred to as 'ZB VPN') A move using an intelligent network that includes a Service Control Point (SCP), and an Intelligent Peripheral (IP). A method of providing a ZB VPN service using a mobile communication system in a communication system and controlling terminating value added (TVA) services in a ZB VPN service, the method comprising: (a) receiving an originating signal from an originating MS at an originating MSC; Z to the calling side HLR Requesting a B VPN service; (b) receiving an analysis information request signal from an originating MSC along with an originating service feature indicator (OSFI) to determine whether to provide a ZB VPN service; (c) identifying the location of the calling MS and the called MS; (d1) determining whether the location of the calling MS identified in step (c) is located in a ZB VPN service area; (d2) when the determination result of step (d1) indicates that the location MS of the calling MS is not located in the ZB VPN service area, transmitting an analysis information response signal to the calling MSC to refuse to provide the ZB VPN service; (d3) determining whether the location of the called-party MS identified in step (c) is located in the ZB VPN service area; (d4) if the location of the called MS is not located in the ZB VPN service area as a result of the determination of step (d3), transmitting an analysis information response signal to the calling MSC to attempt a call using a general switching network; (d5) If the location of the calling MS is located in the ZB VPN service area as a result of the determination in step (d2), and if the location of the called MS is located in the ZB VPN service area, as a result of the determination in step (d4), Sending an analysis information response authorizing ZB VPN service provision to the side MSC; (e) establishing a call between the calling MSC and the called MSC; (f1) receiving, at the called party's HLR, a Transfer to Number request signal from the called party's MSC requesting the called supplementary service along with the OSFI; (f2) confirming that the OSFI received in step (f1) instructs the ZB VPN service in the called party HLR, and determining whether the called party MS is subscribed to the called supplementary service; (f3) as a result of the determination in step (f2), when the called party MS is subscribed to the called supplementary service, determining whether the called supplementary service is a service that is charged separately at the called party's HLR; (f4) if the terminating additional service is a service that is charged separately, as a result of the determination in step (f3), generating a voice announcement message using the terminating MSC at the terminating HLR and refusing to provide the ZB VPN service; And (g) if the called supplementary service is a service for which no additional fee is charged as a result of the determination in step (f3), voice and data communication is provided through call setup between the calling MS and the called MS. And terminating the call result to the calling MSC after the termination of the call. The present invention provides a method for controlling an incoming additional service of a region-based virtual private network service using a mobile communication system.

In addition, according to a second object of the present invention, in a mobile communication system that provides a number of additional services using an intelligent network (ZB VPN) is called Zone Based Virtual Private Network (ZB VPN). A system that provides a service and controls terminating value added (TVA) services in a ZB VPN service, and performs voice and data communication using a ZB VPN service by calling using a service call number or a speed dial number. Calling mobile terminal (MS: Mobile Station, hereinafter referred to as 'MS'); A calling mobile telecommunication switching center providing a ZB VPN service to the calling MS (MSC: Mobile Switching Center, hereinafter referred to as 'MSC'); The calling party's home location register (HLR), which stores ZB VPN service subscription information and generates a ZB VPN service access code (SAC: Service Access Code (SAC)). ; A called MS that performs voice and data communication using the ZB VPN service with the calling MS; A called MSC which provides a ZB VPN service to the called MS in association with the calling MSC; A called-side HLR that determines whether to provide a ZB VPN service according to a type of called additional service; A customer management server that handles the subscription of the ZB VPN service and creates and manages the service area of the ZB VPN service; Zone-based Virtual Private Network Service Control Point (ZB VPN SCP) that determines whether to provide ZB VPN service by comparing the location of calling MS and called MS with service area and controls ZB VPN service. Point, hereinafter referred to as 'ZB VPN SCP'); A gateway HLR relaying all signals between the ZB VPN SCP and the calling HLR and the called HLR; Intelligent Peripheral (IP) for receiving voice announcement service processing signals from the ZB VPN SCP and the destination HLR and transmitting voice announcement messages to the calling MSC and the destination MSC; And a Location Server that registers and manages the service area, wherein the ZB VPN SCP receives service area information from the location server so that both the calling MS and the called MS are located in the service area. The control unit is configured to provide the ZB VPN service to the calling party MS, and the called party HLR determines whether the mobile subscriber using the called party MS is subscribed to the called supplementary service and the called supplementary service is set in the subscriber database in its own. The present invention provides an additional service control system for an incoming call of a region-based virtual private network service using a mobile communication system, which determines whether to provide a ZB VPN service by determining whether a service is a service charged for a separate fee.

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Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

FIG. 1 provides a zone based virtual private network (ZB VPN) service using a mobile communication system according to a preferred embodiment of the present invention and adds an incoming call (TVA: Terminating Value Added). (Hereinafter, referred to as 'TVA') is a block diagram schematically showing the configuration of a system for controlling a service.

A system for providing a ZB VPN service using a mobile communication system and controlling a TVA service according to a preferred embodiment of the present invention includes an originating mobile communication terminal (MSo: Mobile Station Origination (hereinafter referred to as MSo)) 110. MSt (Mobile Station Termination, MST), calling party wireless access network 120, called party wireless access network 122, calling party mobile communication switching center (MSCo: Mobile Switching Center Origination, hereinafter 'MSt') MSCo ') (130), called mobile switching center termination (MSCo: hereinafter referred to as MSCt) (132), calling party home location register (HLRo) (HLRo) 140), called party Home Location Register Termination (HLRt) (HLRt) 142, Home Location Register Gateway (HLRgw) (HLRgw) 144, region-based virtual private network service control Ste (ZB VPN SCP: Zone Based Virtual Private Network Service Control Point, hereinafter referred to as 'ZB VPN SCP') 150, Intelligent Peripheral (IP) (152), Customer Care Server 160, location server 170, Internet 180, and user terminal 190.

The MSo 110 according to the preferred embodiment of the present invention performs voice and data communication by wireless communication with the other party through the MSCo 130 via the originating side wireless access network 120. In addition, the voice and data communication with the MSt 112 is performed by using the service calling number, which is the called party's mobile communication number including the feature code to use the ZB VPN service, or the speed dial number assigned to the ZB VPN service. To perform.

The originating wireless access network 120 is composed of a base station transmission system (BTS) (not shown) and a base station controller (BSC) (not shown). Here, the base station transmitter (not shown) is arranged in each cell unit and transmits a call request generated from the MSo 110 to the MSCo 130 or the location of the MSo 110 existing in the cell area under its control. Perform location registration to figure out. The destination radio access network 122 performs the same function as the source radio access network 120. However, the call request is received from the MSCt 132 and transmitted to the MSt 112.

The MSCo 130 has a control function for efficiently operating the calling party radio access network 120 and an interworking function with an exchange of a public telephone network (not shown). When the MSCo 130 registers the location of the MSo 110 through the originating wireless access network 120, the MSCo 130 is located in a visitor location register (VLR) (not shown) in the MSCo 130. After temporarily storing the subscriber information, request the location registration of the MSo (110) to the HLRo (140).

MSCo (130) according to a preferred embodiment of the present invention receives a service call number or a shortcut number which is a recipient mobile communication phone number including a characteristic code from MSo (110) using the HLRo (140) subscribers ZB VPN service Check whether it performs ZB VPN service. In addition, the ZB VPN SCP 150 transmits an analysis information request signal including an originating service feature indicator (OSFI).

In the present invention, the OSFI is an indicator indicating a registration state of a specific service subscribed to by a mobile communication subscriber among a plurality of additional services provided by a mobile communication system using an intelligent network.

The HLRo 140 is a database that stores a service profile of subscriber information of a mobile terminal user, including a subscriber's telephone number, a mobile identification number (MIN), and a terminal unique number (ESN). ) And service types. The HLRo 140 performs a function of storing subscriber information including information of the calling party radio access network 120 and the MSCo 130 where the MSo 110 is located.

When the mobile subscriber subscribes to the ZB VPN service, the HLRo 140 according to the preferred embodiment of the present invention sets the ZB VPN service field in a subscriber DB (not shown) within the mobile station and stores the ZB VPN service subscription information. In the case where the call is sent using the speed dial number to use the ZB VPN service at 110), the MSB 130 receiving the outgoing signal may request the ZB VPN service from the ZB VPN SCP 150 at the ZCo VPN to the MSCo 130. Request registration of subscriber information including service trigger information.

In addition, a ZB VPN service access code (SAC), which is a service code for identifying a ZB VPN service to be transmitted to the MSCo 130 from other additional services when performing the ZB VPN service in a routing number table, In addition, hereinafter referred to as 'SAC', and when the caller location request signal is received from the ZB VPN SCP 150 via the HLRgw 144, the MSCo 130 requests a call test to determine the location of the MSo 110. The information is then sent back to SCP 150 via HLRgw (144).

In addition, upon receiving the service request signal from the MSCo 130, the MSCo 130 checks the additional service subscribed to by the caller and sends a service response signal including the OSFI, the ZB VPN SAC stored in the route number table, and the called mobile phone number. To send.

In the above, the MSo 110, the originating side wireless access network 120, the MSCo 130, and the HLRo 140 have been described with reference to the calling party. The MSt 112, the destination wireless access network 122, the MSCt 132, and the HLRt 142 of the called party share the general functions of the mobile communication system performed by each component of the calling party compared to the called party. To perform.

However, the MSCt 132 according to the preferred embodiment of the present invention has the MSt 112 powered off, the MSt 112 performing communication, failed to call the MSt 112, or the called party has an MSt 112 In order to check whether an incoming supplementary service is set up when a call is transferred, such as setting a call transfer request unconditionally), a transmission number (TTN) request signal including OSFI to HLRt is called. Send.

In addition, the HLRt 142 according to the preferred embodiment of the present invention receives a caller location request signal from the ZB VPN SCP 150 through the HLRgw 144 to determine the location of the called party's MSt 112 and to grasp the information. Is sent back to SCP (150) via HLRgw (144). In addition, the OSFI included in the called party location request signal received from the MSCo 130 is included in the path request signal to the MSCt 132 to establish a call between the MSCo 130 and the MSCt 132.

Also, while maintaining the call setup between the MSCo 130 and the MSCt 132, the OSB included in the TTN request signal received from the MSCt 132 is identified to identify the ZB VPN service, and the incoming supplementary service set by the called party stored in its database is stored. In case of additional incoming service (for example, automatic connection, incoming call, voice mail switch, caller's memo service, etc.) for which a separate communication fee is charged by checking, stop providing service by stopping call setup, and In the case of an incoming additional service for which no communication fee is charged, the MSCo 130 and the MSCt 132 are controlled to provide a ZB VPN service.

 The HLRgw 144 according to the preferred embodiment of the present invention serves to relay all signals transmitted to the SCP 150 and the HLRo 140 or the HLRt 142.

In general, SCP is a system that performs core functions for performing intelligent network services. It is composed of a program for controlling additional services and a data system in which data of a service subscriber is concentrated. The ZB VPN SCP 150 according to the preferred embodiment of the present invention receives a service registration request from the customer management server 160 when the mobile subscriber subscribes to the ZB VPN service, and provides service subscriber information, shortcut numbers, and services in its own database. Store and manage local information.

In addition, ZB VPN SCP 150 according to a preferred embodiment of the present invention receives a location analysis information request including the OSFI information from the MSCo (130) by using the MSCo (130) and / or MSCt (132) MSo ( 110) and / or the location of MSt 112, and if both MSo 110 and MSt 112 are in the service area set at the time of joining the ZB VPN service, an analysis information response signal including OSFI information is sent to MSCo 130. To provide the ZB VPN service, and if the MSo 110 is not located in the service area set up when the user subscribes to the ZB VPN service, denies the provision of the ZB VPN service to cause the MSCo 130 to release the call setup with the MSo 110. To control. If the MSt 112 is not located in a specific region set when the user subscribes to the ZB VPN service, an announcement to the MSCo 130 using the IP 152 (for example, "You are not connected to the customer is connecting to a commercial network. After connection, you will be charged. Please disconnect if you don't want to. ”) And control MSCo 130 to try the call over the general switching network instead of the ZB VPN service.

IP 152 is a device that performs voice services such as voice guidance function, voice synthesis function, voice recognition function, and voice database information management function, and performs data services such as protocol conversion function and data network connection function.

The customer management server 160 performs the subscription and withdrawal of new mobile subscribers, change the information of the mobile subscribers, perform various service functions, and perform centralized charging management.

The customer management server 160 according to the preferred embodiment of the present invention receives a ZB VPN service subscription request from the user terminal 190 via the Internet 180, requests the service registration to the HLRo 140, and the subscriber designates it. If the service area is not a registered service area, use the Location Server 170 to register a new service area and provide subscriber information and shortcut number information to the ZB VPN SCP 150 to use the ZB VPN service. Register.

The location server 170 registers and stores service area information for each subscriber in correspondence with a subscriber and a region when using a specific area or wide area in a plurality of additional services using an intelligent network provided by a mobile communication system. .

The location server 170 according to the preferred embodiment of the present invention stores and manages the service area selected by the mobile subscriber to use the ZB VPN service, and transmits information on the service area to the ZB VPN SCP. In addition, the ZB VPN SCP database is updated by transmitting information about the service area stored in the period set by the mobile communication provider (for example, one day) to the ZB VPN SCP.

The Internet 180 refers to a global open computer network architecture that provides the TCP / IP protocol and various services that exist in the upper layers, namely HTTP, Telnet, FTP, DNS, SMTP, SNTP, NFS, and NIS.

The user terminal 190 refers to a computer for accessing the customer management server 160 to subscribe to a ZB VPN service utilizing an intelligent network of a mobile communication system, and may be any one of a desktop computer and a laptop computer. There is a built-in web browser for accessing (180).

2 is a flowchart illustrating a ZB VPN service registration method according to an embodiment of the present invention.

A mobile communication subscriber who wants to receive a ZB VPN service using an intelligent network of a mobile communication system connects to a customer management server 160 via the Internet 180 using a user terminal 190. When the mobile subscriber transmits a ZB VPN service subscription request signal to the customer management server 160 through a predetermined procedure (S210), the customer management server 160 transmits a service registration request signal to the HLRo 140 (S212). ). The HLRo 140 sets the ZB VPN service field in its own subscriber database, stores the subscriber's information (S214), and transmits a service registration completion signal to the customer management server 160 (S216). The customer management server 160 transmits a service subscription completion signal to the user terminal 190 (S218) to notify the mobile subscriber of the completion of subscription.

Here, when the HLRo 140 makes an outgoing call using the shortcut number to use the ZB VPN service by the MSo 110, the MSCo 130 receiving the outgoing signal requests the ZB VPN SCP service from the ZB VPN SCP 150. The subscriber information registration request signal including the ZB VPN service trigger information is transmitted to the MSCo 130 (S220). Upon receiving the subscriber information registration request signal, the MSCo 130 transmits a subscriber information reception completion signal to the HLRo 140 informing that the subscriber information has been registered (S222).

Upon receiving the registration completion signal from the MSCo 130, the HLRo 140 generates a ZB VPN SAC to be transmitted to the MSCo 130 when the ZB VPN service is performed in a routing number table of the subscriber DB in the self. Add to the table (S224). The ZB VPN SAC is an identification number for distinguishing the ZB VPN service from other additional services.

Meanwhile, after transmitting the service subscription completion signal to the user terminal 190, the customer management server 160 determines whether the service area designated by the service subscriber is a service area that is already set in the location server 170 (S226). ). As a result of the determination in step S226, if the service area designated by the service subscriber is a service area already set in the location server 170, the process proceeds to step S230. As a result of the determination in step S226, the service area specified by the service subscriber is already located in the location server. If the service area is not set at 170, a new service area is registered at the location server 170 (S228), and information of the subscribers to use the ZB VPN service, the service area, and the speed dial number are stored (S230).

In addition, the customer management server 160 transmits a service registration request signal including subscriber information, service area information, and a shortcut number to the ZB VPN SCP 150 (S232), and receives the service registration request signal from the ZB VPN SCP ( 150 stores subscriber information, service area, and speed dial number in its own database, registers the ZB VPN service, and transmits a service registration completion signal to the customer management server 160 again (S234). If a new service area is registered in the location server 170, the location server 170 transmits information about the service area to the ZB VPN SCP 150. This completes the ZB VPN service subscription procedure.

3A is a flowchart illustrating the first half of a method for providing a ZB VPN service using a mobile communication system and controlling a TVA service according to a preferred embodiment of the present invention.

A mobile subscriber who has subscribed to the ZB VPN service enters a recipient mobile communication phone number including a characteristic code such as '# 880112345678' or a shortcut number such as '1234' to the MSo 110 to send a button. When pressed, the MSo 110 transmits an outgoing signal containing the called party's telephone number or shortcut number including the feature code to the MSCo 130 (S310).

Here, the characteristic code is an identification code for indicating the intention to use the ZB VPN service and may be defined in various ways such as # 88 or # 77. In addition, a shortcut number is a number that can designate the called party by a relatively small number of combinations instead of the called party's phone number in order to simplify the call between mobile subscribers using the ZB VPN service, and defined in various ways such as '1234' or '123456'. Can be.

Upon receiving the outgoing signal, the MSCo 130 transmits a service request signal including a called number or a shortcut number including the characteristic code to the HLRo 140 (S312). Upon receiving the service request signal, the HLRo 140 checks the additional service to which the caller sent through the MSo 110 is subscribed through the MIN of the MSo 110 to confirm whether the subscriber is subscribed to the ZB VPN service, and other additional services. A service response signal including a ZB VPN SAC, a called party's mobile telephone number, and OSFI information, which is an identification code for identifying the service and the ZB VPN service, is transmitted to the MSCo 130 (S314). Upon receiving the service response signal, the MSCo 130 transmits an analysis information request signal including the ZB VPN SAC, the called party's mobile telephone number, and OSFI information to the ZB VPN SCP 150 (S316).

Upon receiving the analysis information request signal, the ZB VPN SCP 150 transmits a caller location request signal to the MSCo 130 via the HLRgw 144 and the HLRo 140 in order to confirm the location of the MSo 110. (S318). The MSCo 130 receiving the location request signal detects the location of the MSo 110 through a call test with the MSo 110 (S320), and sends a caller location response signal including the location information of the MSo 110. It transmits to ZB VPN SCP 150 via HLRo 140 and HLRgw 144 in sequence (S322).

Upon receiving the caller location response signal, the ZB VPN SCP 150 transmits the caller location request signal to the MSCt 132 via the HLRgw 144 and the HLRt 142 in order to confirm the location of the called party (S324). ). Upon receiving the location request signal, the MSCt 132 detects the location of the MSt 112 through the call test with the MSt 112 (S326), and sends a caller location response signal including the location information of the MSo 110. The transmission is transmitted to the ZB VPN SCP 150 via the HLRt 142 and the HLRgw 144 (S328).

The ZB VPN SCP 150 confirms the caller's location from the received caller location response signal and the caller's location from the received caller location response signal, corresponding to the analysis information request signal received from the MSCo 130 in step S316. In order to transmit an analysis information response signal, it is determined whether to provide a ZB VPN service by determining whether a caller and a called party are located in an area designated as a service area when the ZB VPN service is subscribed.

3B is a flowchart illustrating a mid-section of a method for providing a ZB VPN service using a mobile communication system and controlling a TVA service according to an exemplary embodiment of the present invention.

First, the ZB VPN SCP 150 determines the service area of the subscriber by receiving information about the service area from the location server 170 according to a cycle (for example, one day) set by the mobile communication system operator. The ZB VPN SCP 150 determines whether the caller is located in an area designated as a service area at the time of joining the ZB VPN service (S330). As a result of the determination in step S330, when the caller is not located in the area designated as the service area when the user subscribes to the ZB VPN service, since the ZB VPN service is not provided to the caller, the analysis information response signal for rejecting the ZB VPN service to the MSCo 130 It transmits (S332). Upon receiving the analysis information response signal of step S332, the MSCo 130 transmits a call unavailable signal to the MSo 110 (S334), and releases the call setup with the MSo110.

As a result of the determination in step S330, when the caller is located in the area designated as the service area at the time of joining the ZB VPN service, it is determined whether the called party is located in the area designated as the service area at the time of joining the ZB VPN service (S336).

As a result of the determination in step S336, when the called party is not located in the area designated as the service area when joining the ZB VPN service, the called party is not located in the ZB VPN service area by using the IP 152, and thus the general call cannot be provided because the called party is not located in the ZB VPN service area. Analyzing information response signal for general switched network access to perform voice prompt service to attempt to connect using IP 152 (S338) and fail to provide ZB VPN service to MSCo 130 without using ZB VPN service. Is transmitted along with the voice announcement message generated in step S338 (S340). Upon receiving the voice prompt message and the analysis information response signal, the MSCo 130 transmits the voice guide message to the MSo 110 and connects to the MSCt 132 through a commercial network to connect to the general call. Make a regular call with). Here, the procedure of performing the voice guidance service performed by the IP 152 is a well-known technique, and thus a detailed description thereof will be omitted.

As a result of the determination in step S336, when the called party is located in the area designated as the service area at the time of joining the ZB VPN service, the caller and the called party are both located in the area designated as the service area at the time of joining the ZB VPN service. The allowed analysis information response signal is transmitted to the MSCo 130 (S342).

Upon receiving the analysis information response signal, the MSCo 130 transmits a called party location request signal including OSFI information to the HLRt 142 to establish a call with the MSCt 132 (S344). The HLRt 142 receiving the called party location request signal transmits a path request signal including OSFI information to the MSCt 132 to determine the called party's location (S346), and the MSCt 132 calls the MSt 112. The test is performed (S348) and the position information of the MSt 112 is determined and transmitted to the HLRt 142 through the path response signal (S350). Upon receiving the path response signal, the HLRt 142 transmits a called party location response signal including the location information of the MSt 112 to the MSCo 130 (S352). The MSCo 130 attempts to establish a call with the MSCt 132 (S354).

3C is a flowchart illustrating the second half of a method of providing a ZB VPN service using a mobile communication system and controlling a TVA service according to an exemplary embodiment of the present invention.

When the call setup with the MSCo 130 is completed by the call setup attempt in step S354, the MSCt 132 transmits a TTN request signal including the OSFI information received in step S346 to the HLRt 142 (S356). The HLRt 142 reads the received OSFI information, checks whether the OSFI is activated by the ZB VPN, and determines whether the recipient additional service is set in the subscriber information stored in the subscriber database (not shown) in the self ( S358).

Here, the TTN request signal is either powered off of the MSt 112, the MSt 112 is communicating, the MSCt 132 fails to call the MSt 112, or the called party calls the MSt 112 unconditionally. When a call is diverted, such as setting a switch request, the MSCt 132 is a signal transmitted by the HLRt to confirm whether an incoming supplementary service is set.

As a result of the determination in step S358, when the terminating additional service is set, it is determined whether the terminating additional service is a service to which a separate communication fee is charged (S360).

As a result of the determination in step S360, when the incoming supplementary service is a service charged with a separate communication fee, a denial of service signal for rejecting the ZB VPN service is transmitted to the MSCt 132 (S362). Upon receiving the denial of service signal, the MSCt 132 performs voice guidance indicating that the ZB VPN service cannot be provided due to the circumstances of the called party (S364), and the MSCo 130 sends the call with the voice guidance message generated in step S364. The call setup release signal is released by the MSCo 130 by transmitting a setup release signal (S368), and the MSCo 130 receiving the call setup release signal transmits a call unavailable signal along with the voice announcement message received by the MSo 110. (S368).

If the incoming supplementary service is not set as a result of the determination in step S358 or as a result of the determination in step S360, the call between the MSCo 130 and the MSCt 132 is not a service to which a separate communication fee is charged. Through the setting, the MSo 110 and the MSt 112 perform voice and data communication using the ZB VPN service (S370).

When the MSo 110 ends all calls with the MSt 112 and transmits a disconnection signal to the MSCo 130 (S372), the MSCo 130 receiving the disconnection signal receives the ZB VPN SCP 150 for charging. In step S374, a call result report request signal for requesting call information by the ZB VPN service is transmitted. Upon receiving the call result report request signal, the ZB VPN SCP 150 transmits a call result report response signal including call log information between the MSo 110 and the MSt 112 to the MSCo 130 (S376).

The MSCo 110 performs a discount or free charging at a rate set by the operator of the mobile communication system based on the call log information included in the received call result report response signal.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, a mobile communication service that has been in possession of an extension telephone service in which an existing local discount plan service and an existing virtual private network service are integrated and purchased and installed by providing an existing extension switch is provided. Mobile subscribers who have subscribed to ZB VPN service by using the intelligent network of mobile communication system without installing additional equipment by using the terminal can easily call in ZB VPN service area and provide discount or free call benefits I can receive it.

In addition, the mobile telecommunications provider controls the terminating additional service by controlling to stop the provision of the service when it is necessary to provide additional telecommunication service charges due to the circumstances of the called party while providing the local-based virtual private network service to the mobile subscriber. Reasonable services can be provided depending on the type of service.

Claims (40)

delete delete delete delete delete delete delete delete Calling mobile terminal (MS: Mobile Station, hereinafter referred to as 'MS'), called MS, calling mobile communication switching center (MSC: Mobile Switching Center, hereinafter referred to as 'MSC'), called MSC, calling home Location Register (HLR: Home Location Register, hereinafter referred to as 'HLR'), Recipient's HLR, Gateway HLR, Zone Based Virtual Private Network (ZB VPN) Service Control Point ( In the mobile communication system using the intelligent network including SCP: Service Control Point (hereinafter referred to as 'SCP'), and Intelligent Peripheral (IP: Intelligent Peripheral), the ZB VPN service is provided using the mobile communication system. A method of controlling terminating value added (TVA) service in the ZB VPN service, (a) receiving an outgoing signal from the calling MS at the calling MSC and requesting the ZB VPN service to the calling HLR; (b) receiving, from an originating MSC, an analysis information request signal confirming whether to provide the ZB VPN service with an originating service feature indicator (OSFI); (c) identifying the location of the calling MS and the called MS; (d1) determining whether the location of the calling MS identified in step (c) is located in the ZB VPN service area; (d2) if it is determined in step (d1) that the location of the originating MS is not located in the ZB VPN service area, transmitting an analysis information response signal to the calling MSC to refuse to provide the ZB VPN service; step; (d3) determining whether the location of the called-party MS identified in step (c) is located in the ZB VPN service area; (d4) If the location of the called MS is not located in the ZB VPN service area as a result of the determination of step (d3), an analysis information response signal is transmitted to the calling MSC to attempt a call using a general switching network. Doing; (d5) the determination result of step (d2) indicates that the location of the calling MS is located in the ZB VPN service area; and the determination result of step (d4) indicates that the location of the called MS is located in the ZB VPN service area. Transmitting an analysis information response authorizing the provision of the ZB VPN service to the originating MSC when located at; (e) establishing a call between the calling MSC and the called MSC; (f1) receiving, at the called party's HLR, a Transfer to Number request signal for requesting the called additional service from the called MSC together with the OSFI; (f2) confirming, by the called-side HLR, the OSFI received in the step (f1) instructs the ZB VPN service, and determining whether the called-side MS has subscribed to the called additional service; (f3) if the called MS is subscribed to the called additional service as a result of the determination of step (f2), determining whether the called additional service is a service charged at a separate rate by the called party's HLR; (f4) As a result of the determination in step (f3), if the called supplementary service is a service charged separately, the called party HLR generates a voice announcement message using the called MSC and provides the ZB VPN service. Rejecting; And (g) If the called supplementary service is a service for which no additional fee is charged as a result of the determination in step (f3), voice and data communication is provided through call setup between the calling MS and the called MS; Transmitting a call result to the calling MSC after voice and data communication is terminated; Incoming additional service control method of a region-based virtual private network service using a mobile communication system comprising a. The method of claim 9, wherein step (a) comprises: (a1) receiving the originating signal including a service originating number or a shortcut number from the originating MS at the originating MSC; (a2) transmitting a ZB VPN service request signal including the service calling number or the shortcut number from the calling MSC to the calling HLR; And (a3) ZB VPN service access code (SAC: Service Access Code, hereinafter referred to as 'SAC') from the originating HLR in the originating MSC, called party's mobile telephone number and originating service characteristic indicator (OSFI) included in the service originating number; : Receiving ZB VPN service response signal including Originating service Feature Indicator) Incoming additional service control method of a region-based virtual private network service using a mobile communication system comprising a. delete delete The method of claim 10, wherein the ZB VPN SAC, A service code for distinguishing the ZB VPN service stored in a Routing Number Table in its own database of the ZB VPN SCP from a plurality of supplementary services utilizing the intelligent network, which is transmitted to the originating MSC and is transmitted. And controlling a side MSC to request the ZB VPN service from the ZB VPN SCP. The method of claim 9, wherein step (c) comprises: (c1) using the gateway HLR to transmit a caller location request signal to the calling MSC via the calling HLR; (c2) determining a location of the calling MS by performing a call test with the calling MS at the calling MSC; (c3) receiving a caller location response signal including the location information of the calling MS identified by the calling MSC through the calling HLR using the gateway HLR; (c4) transmitting a called party location request signal to the called MSC via the called HLR using the gateway HLR; (c5) determining the location of the called MS by performing a call test with the called MS at the called MSC; And (c6) receiving a called party location response signal including the location information of the called party MS identified by the called party MSC via the called party HLR using the gateway HLR; Incoming additional service control method of a region-based virtual private network service using a mobile communication system comprising a. delete The method of claim 9, wherein step (d2), (d21) transmitting an analysis information response signal for rejecting the ZB VPN service to the calling MSC; And (d22) transmitting a signal for rejecting the access of the ZB VPN service from the calling MSC to the calling MS and releasing a call setup with the MS; Incoming additional service control method of a region-based virtual private network service using a mobile communication system comprising a. The method of claim 9, wherein in step (d5), the analysis information response signal, And an additional service control method of an incoming call of a region-based virtual private network service using a mobile communication system, comprising the OSFI. The method of claim 9, wherein step (d4), And using the intelligent peripheral device, transmitting a voice guidance message to the calling MSC indicating that the called party is not located in the ZB VPN service area and attempts to make a call using a general switching network. A method for controlling an incoming supplementary service of a region-based virtual private network service using a system. The method of claim 9, wherein step (e) (e1) receiving a called party location request signal including the OSFI from the calling MSC at the called party HLR; (e2) transmitting a path request signal including the OSFI from the called party HLR to the called party MSC; (e3) confirming a location of a called party MS through a call test with the called party MS at the called party MSC; (e4) receiving a path response signal including information on the location of the called MS from the called MSC at the called HLR; (e5) transmitting, from the called party HLR, a called party location response signal including information about the location of the called party MS to the calling party MSC; And (e6) performing call setup with the called MSC at the calling MSC; Incoming additional service control method of a region-based virtual private network service using a mobile communication system comprising a. delete The method of claim 9, wherein step (f4), (f41) receiving a denial of service signal for denying the ZB VPN service from the called party HLR at the called party MSC and generating the voice announcement message; (f42) transmitting a call establishment release signal including the voice announcement message from the called party MSC to the calling party MSC and releasing a call setup with the calling MSC; And (f43) transmitting a call unavailable signal including the voice announcement message from the calling MSC to the calling MS and releasing a call setup with the calling MS; Incoming additional service control method of a region-based virtual private network service using a mobile communication system comprising a. The method of claim 9, wherein step (g) comprises (g1) receiving a call connection release signal from the calling MS at the calling MSC to release a call setup; (g2) receiving a call result report request signal which is information on a call record including a talk time from the calling MSC; And (g3) transmitting a call result report response signal including information on the call record to the calling MSC; Incoming additional service control method of a region-based virtual private network service using a mobile communication system comprising a. In the mobile communication system that provides a number of additional services using intelligent networks, a ZB VPN service is provided and ZB VPN service provides a zone based virtual private network (ZB VPN) service. As a system to control terminating value added (TVA) service, A calling mobile terminal (MS: Mobile Station, hereinafter referred to as "MS") which performs voice and data communication using the ZB VPN service by calling using a service calling number or a speed dial number; An originating mobile telecommunication switching center (MSC: Mobile Switching Center, hereinafter referred to as 'MSC') for providing the ZB VPN service to the originating MS; The calling party's home location register (HLR), which stores ZB VPN service subscription information and generates a ZB VPN service access code (SAC: Service Access Code (SAC)). ; A called MS which performs voice and data communication using the ZB VPN service with the calling MS; A called MSC providing the ZB VPN service to the called MS in association with the calling MSC; A called-side HLR that determines whether to provide the ZB VPN service according to the type of the called additional service; A customer management server that processes the subscription of the ZB VPN service and creates and manages a service area of the ZB VPN service; A zone-based virtual private network service control point (ZB VPN SCP) for determining whether to provide the ZB VPN service by comparing the location of the calling MS and the called MS with the service area and controlling the ZB VPN service. Virtual Private Network Service Control Point, hereinafter referred to as 'ZB VPN SCP'); A gateway HLR relaying all signals between the ZB VPN SCP and the calling party HLR and the called party HLR; An intelligent peripheral (IP: Intelligent Peripheral) for receiving a voice announcement service processing signal from the ZB VPN SCP and the called party HLR and sending a voice announcement message to the calling party MSC and the called party MSC; And Location Server to register and manage the service area Wherein the ZB VPN SCP receives the service area information from the location server so that when both the calling MS and the called MS are located in the serving area, the ZB VPN SCP sends the calling MS from the calling MSC to the calling MS. ZB VPN service is controlled, and the called party's HLR determines whether the mobile subscriber using the called party's MS subscribes to the called supplementary service and the called supplementary service is set in its own subscriber database. The additional service control system according to the terrestrial-based virtual private network service using the mobile communication system, characterized in that it is determined whether or not to provide a service charges a separate fee. delete delete The method of claim 23, wherein the calling MSC, The service request signal including the service call number or the speed dial number is transmitted to the calling party HLR, and the ZB VPN SAC, the called mobile communication phone number, and the calling service characteristic indicator (OSFI) are transmitted from the calling party HLR. The terminating additional service control system of a territorial based virtual private network service using a mobile communication system, wherein the service response signal is received. The method of claim 23, wherein the calling MSC, Sends a signal requesting location analysis information asking whether to provide the ZB VPN service to the ZB VPN SCP and receives a location analysis information response that is a response to whether to provide the ZB VPN service from the ZB VPN SCP. To provide a call using the ZB VPN service to the calling MS and the called MS, to reject the provision of the ZB VPN service to the calling MS, or to transmit a voice announcement message to the calling MS. An additional service control system for an incoming call of a region-based virtual private network service using a mobile communication system, characterized by performing any one of functions for providing general voice and data communication. delete The method of claim 23, wherein the source HLR, Receives a registration request signal of the ZB VPN service from the customer management server, requests registration of the ZB VPN service subscription information including ZB VPN service trigger information to the calling MSC and generates the ZB VPN SAC to generate its own database. An additional service control system for an incoming call of a region-based virtual private network service using a mobile communication system, characterized in that stored in the mobile communication system. The method of claim 29, wherein the ZB VPN service trigger information, In the case where the originating MSC receives an outgoing signal including the speed dial number from the originating MS, the calling MSC is information for controlling the ZP VPN SCP to request the ZB VPN service. An additional service control system for an incoming call based on a virtual private network service. The method of claim 23, The ZB VPN SAC, A service code for distinguishing the ZB VPN service from a plurality of supplementary services utilizing the intelligent network, which is stored in a routing number table in its own database. Incoming additional service control system. delete The method of claim 23, wherein the ZB VPN SCP, Using the mobile communication system, if the originating MS is not located in the service area by receiving information on the service area from the location server, denying the provision of the ZB VPN service to the calling MSC. Incoming additional service control system for region-based virtual private network service. delete The method of claim 23, wherein the ZB VPN SCP, Receiving the service area information from the location server, when the calling party MS is located in the service area and the called party MS is not located in the service area, it performs voice guidance using the intelligent peripheral device and the calling party. An additional service control system for terminating local-based virtual private network service using a mobile communication system, characterized in that the MSC controls to provide voice and data communication to the calling MS using a general switching network. delete The method of claim 23, wherein the location server, And additionally transmitting the ZB VPN service area information to the ZB VPN SCP at intervals set by the mobile communication system operator. The method of claim 23, wherein the called-side HLR, The OSFI is indicated by receiving a Transfer to Number request signal for requesting the called additional service from the called MSC together with the Originating Service Feature Indicator (OSFI). And the forwarding number request signal is a signal for using the ZB VPN service. delete The method of claim 26, wherein the OSFI, An additional service control system for terrestrial based virtual private network service using a mobile communication system, wherein the indicator is an indicator indicating a registration state of a specific additional service subscribed to by a mobile communication subscriber among a plurality of additional services provided by the mobile communication system.

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