KR100744780B1 - Mute prevention announcement method for providing zone based virtual private network service by using mobile communication system - Google Patents

Abstract

A mute prevention announcement method of a ZB(Zone-Based) VPN(Virtual Private Network) service in a mobile communication network is provided to deliver an announcement during standby time when a user accesses the ZB VPN service, thereby avoiding a mute sound. An originating MS(Mobile Station) sends an origination signal to an originating MSC(Mobile Switching Center)(S100). The originating MSC sends a service request signal to an originating HLR(Home Location Register)(S102). The originating HLR sends a service response signal to the originating MSC(S104). The originating MSC sends an analysis information request signal(S106). A ZB VPN SCP(Service Control Point) sends a temporary access setup operation to the originating MSC(S108). The originating MSC establishes a speech path by using an ISUP after receiving a routing number of an IP(Internet Protocol) for delivering an announcement(S110). The IP requests the announcement to be delivered(S112). The SCP transmits an announcement execution message to the IP(S114). The IP delivers the announcement to the originating MS through the speech path(S116).

Description

Mute Prevention Announcement Method for Providing Zone Based Virtual Private Network Service by Using Mobile Communication System}

1 is a schematic diagram of a ZB VPN service system for implementing the method of the present invention.

2 is a flowchart illustrating a mute prevention announcement broadcasting method in the ZB VPN service of the present invention.

<Description of Major Symbols in Drawing>

100: MSo 200: MSt

110: calling party wireless access network 210: called party wireless access network

120: MSCo 220: MSCt

130: HLRo 230: HLRt

300: HLRgw 400: SCP

500: IP 600: ZB VPN Server

700: LS 800: Customer Management Server (COIS / CDS)

The present invention relates to a region-based virtual private network service method using a mobile communication system using an intelligent network in a mobile communication network. More particularly, the present invention relates to a method of transmitting a guide broadcast for preventing silence during a time taken for connecting to a service when accessing a region-based virtual private network service in a mobile communication network.

Zone Based Virtual Private Network Service (hereinafter referred to as `` ZB VPN Service '') in mobile networks is a regional-based discount, an additional service that mobile subscribers receive through an intelligent network in a mobile communication system using intelligent networks. It is an example of an additional service that integrates a Zone Base Billing service and a Virtual Private Network Service.

Zone base billing service (Zone Base Billing) is a discount or free calling service that applies a different rate to call charges when a mobile subscriber uses a 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, a virtual private network service (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.

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 outgoing calls during calls between subscribers specified in the same virtual private network.

The ZB VPN service combines these two advantages, and when a plurality of mobile subscribers live or work together in a specific area, a virtual private network service is used to easily use an internal call while using a local discount plan service to obtain a discount or It is a service that can use free calls.

The ZB VPN service includes a calling mobile terminal (MS), called MS, calling MS, MS (Mobile Switching, MSC) and called MSC. , Calling home location register (HLR), called HLR, gateway HLR, zone-based Virtual Private Network Service Control Point (ZB VPN SCP) In a mobile communication system using an intelligent network including a 'ZB VPN SCP'), an Intelligent Peripheral (IP), and a ZB VPN (Zone Based Virtual Private Network (ZB VPN)) database. Using a mobile communication system,

The source MSC receives an outgoing signal from the source MS to request the ZB VPN service to the source HLR, and analyzes an information request signal for confirming whether to provide the ZB VPN service from the source MSC. Receive and verify the locations of the calling mobile terminal and the called mobile terminal; It is determined whether to provide the ZB VPN service, and as a result of determining whether the service is provided, when providing the ZB VPN service, a call is established between the calling MS and the called MS to use the ZB VPN service. To make a call; Ending the call and sending the call result to the calling MSC.

However, in the process of accessing the ZB VPN service in the calling mobile communication terminal, there is a problem in that there is no silence during the connection waiting time, so that the service user is not connected or fails to connect.

The present invention is to solve the problem of the ZB VPN service, an object of the present invention is a method for preventing silence by transmitting a guide broadcast to the calling mobile terminal during the waiting time when accessing the ZB VPN service in the mobile communication network To provide.

As a technical idea for achieving the object of the present invention, in the present invention, a system for providing a ZB VPN service in a mobile communication system that provides a number of additional services using an intelligent network, by using a service call number A calling mobile terminal (MS: Mobile Station, hereinafter referred to as MSo) for performing voice and data communication by using the ZB VPN service by making a call; A calling mobile communication switching center (MSC: Mobile Switching Center, hereinafter referred to as 'MSCo') for providing the ZB VPN service to the calling MSo; Stores the subscription information of the ZB VPN service and generates a ZB VPN service access code (SAC: Service Access Code, hereinafter referred to as 'SAC') called a home location register (HLR: Home Location Register, hereinafter referred to as 'HLRo'). Called); A called-party mobile communication terminal for performing voice and data communication using the calling MSo and the ZB VPN service (hereinafter referred to as 'MSt'); A called side exchange (hereinafter, referred to as 'MSCt') which provides a call to the called side MSt using the ZB VPN service in association with the calling side exchange (MSCo); A destination home location register (hereinafter referred to as 'HLRt') for determining the location of the destination MSt through the destination MSCt; 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 location-based virtual private network service for controlling the calling mobile communication switching center (MSCo) by determining whether to provide the ZB VPN service by comparing the locations of the calling MSo and the called MSt with the service area of the ZB VPB service. Control Point (ZB VPN SCP: Zone Based 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 originating HLRo and the called party HLRt (hereinafter referred to as 'HLRgw'); An Intelligent Peripheral (IP) (hereinafter referred to as IP) for receiving a voice announcement service processing signal from the ZB VPN SCP and transmitting a voice announcement message to the calling MSCo; And a location server (hereinafter referred to as 'LS') for registering and managing the ZB VPN service area, wherein the calling side Mso attempts to access a service in the ZB VPN service system of the mobile communication system. After the response to the service connection request including the event type parameter for monitoring the call in the ZB VPN SCP is forwarded to the calling MSCo, the ZB VPN SCP sends a announcement to prevent the silence from occurring at the calling MSo. Method for transmitting silence announcement when accessing ZB VPN service in mobile communication system that transmits temporary call setup operation including routing number to connect to IP, and transmits announcement through connected call path at IP This is presented.

Hereinafter, with reference to the accompanying drawings for the configuration and operation of the invention for the embodiment of the present invention will be described in detail.

FIG. 1 is a schematic ZB VPN service system diagram for implementing a method of transmitting a silence prevention guide broadcast when accessing a ZB VPN service in a mobile communication system of the present invention.

The ZB VPN service system in a mobile communication system is a system for providing a ZB VPN service in a mobile communication system that provides a number of additional services by utilizing an intelligent network. Calling side Mso (100) for performing voice and data communication using; An originating MSCo (120) providing the ZB VPN service to the originating Mso (100); A calling party HLRo 130 for storing subscription information of the ZB VPN service and generating a ZB VPN service access code (SAC); A destination MSt (200) for performing voice and data communication using the originating MSo (100) and the ZB VPN service; A called MSCt 220 which provides a call to the called MSt 200 using the ZB VPN service in association with the calling MSCo 120; A called-side HLRt 230 for determining the position of the called-side MSt 200 through the called-side MSCt 220; A customer management server (COIS / CDS) 800 which processes the subscription of the ZB VPN service and creates and manages the service area of the ZB VPN service; ZB controlling the calling MSCo 120 by determining whether to provide the ZB VPN service by comparing the locations of the calling MSo 100 and the called MSt 200 with the service area of the ZB VPN service. VPN SCP 400; An HLRgw (300) for relaying all signals between the ZB VPN SCP (400), the calling party's HLRo (130), and the called party's HLRt (230); An IP 500 for receiving a voice guidance service processing signal from the ZB VPN SCP 400 and transmitting a voice guidance message to the calling MSCo 120; And an LS 700 for registering and managing the ZB VPN service area.

The MSo 110 according to the preferred embodiment of the present invention performs a telephone call by wireless communication with the other party through the MSCo 130 via the caller side wireless access network 120. In addition, the mobile station performs a call with the MSt 112 by calling using a service calling number, which is a called party's telephone number including a feature code to use the ZB VPN service, or a shortcut number assigned to the ZB VPN service.

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).

In the ZB VPN service system of the mobile communication system, the MSCo 120 receives a service call number or a speed dial number, which is a called party mobile phone number including a feature code (eg, # 88), from the MSo 100. The HLRo 130 checks whether the subscriber is a ZB VPN service, and performs the ZB VPN service.

The HLRo 130 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 (Electronic Serial Number: ESN). ) And service types. The HLRo 130 performs a function of storing subscriber information including information of the calling party radio access network 110 and the MSCo 120 where the MSo 100 is located.

When the mobile subscriber subscribes to the ZB VPN service, the HLRo 130 sets the ZB VPN service field in the subscriber DB, stores the ZB VPN service subscription information, and a shortcut number for using the ZB VPN service in the MSo 100. In the case of sending by using the MSCO (120) receives the outgoing signal to register the subscriber information including the ZB VPN service trigger information to the MSCo (120) so that the MSB (120) can request the ZB VPN service to the ZB VPN SCP (400) request.

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 120 and other additional services when performing the ZB VPN service, is added to a routing number table, When the caller location request signal is received from the ZB VPN SCP (400) via the HLRgw (300), it requests a call test to the MSCo (120) to determine the location of the MSo (100), and recaptures the information obtained by the HLRgw (300). Send to ZB VPN SCP (400) through.

In addition, the HLRt 230 receives a caller location request signal from the ZB VPN SCP 400 through the HLRgw (300) to determine the location of the called party's MSt (200), and re-confirms the information obtained by the HLRgw (300). To ZB VPN SCP (400). The HLRgw 300 relays all signals transmitted to the ZB VPN SCP 400 and the HLRo 130 or the HLRt 230.

In general, ZB VPN SCP (400) is a system that performs a core function for performing an intelligent network service, and is composed of a program for controlling additional services and a data system in which data of a service subscriber is concentrated. When the mobile subscriber subscribes to the ZB VPN service, the ZB VPN SCP 400 receives the service registration request from the customer management server 800 and stores and manages the service subscriber information, the shortcut number, and the service area information in its own database.

In addition, the ZB VPN SCP (400) receives the location analysis information request from the MSCo (120) to determine the location of the MSo (100) and / or MSt (200) using the MSCo (120) or MSCt (220) If both the MSo (100) and the MSt (200) are in the service area set up when signing up for the ZB VPN service, the ZB VPN service is provided. If the MSt 200 is not located in a specific area set up when joining the ZB VPN service, the MSt 200 sends an announcement to the MSo 100 using the IP 500 and attempts to make a call to the general switching network instead of the ZB VPN service.

The IP 500 is a device for performing a voice service such as a voice guidance function, a voice synthesis function, a voice recognition function, and a voice database information management function, and a data service such as a protocol conversion function and a connection function with a data network.

The customer management server 800 receives a ZB VPN service subscription request from the user terminal via the Internet from the outside, requests a service registration to the HLRo 130, and the service area designated by the subscriber is not a registered service area. Register the new service area by using LS 700 and register subscriber information and shortcut number information to use ZB VPN service with ZB VPN SCP 400.

The LS 700 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 400. In addition, ZB VPN SCP (400) updates the database of ZB VPN SCP (400) by transmitting information about the service area stored in the daily interval.

FIG. 2 is a flowchart illustrating a method for transmitting a silence prevention guide broadcast when a service is accessed in the ZB VPN service system of the mobile communication system of FIG. 1.

A mobile subscriber who has subscribed to the ZB VPN service enters the MSo (100), the service calling number which is the called party's mobile telephone number including the characteristic code, for example, '# 99 + MDN', or a shortcut number of 4-6 characters, for example. By pressing the transmit button, the MSo 100 transmits the outgoing signal including the called party's telephone number or the shortcut number including the characteristic code to the MSCo 120 (S100).

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 120 transmits a service request signal including the called or shortened number with the feature code to the HLRo 130 (S102).

Receiving the service request signal, the HLRo 130 checks whether it is subscribed to the ZB VPN service through the MIN of the MSo 100 and transmits a service response signal including the SAC and the called party's phone number to the MSCo 120 (S104). ).

Upon receiving the service response signal, the MSCo 120 transmits an analysis information request signal including the SAC and the called party's phone number to the ZB VPN SCP 400 (S106).

Upon receiving the analysis information request signal from the MSCo 120, the ZB VPN SCP 400 transmits a request response signal including an event type parameter for monitoring a call to the MSCo 120, and receives it at the MSo 100. The temporary connection establishment operation including the routing number is transmitted to the MSCo 120 so as to connect to the IP 500 to which the announcement is transmitted.

The MSCo 120 receives the routing number of the IP 500 to transmit the announcement to the MSo 100 and establishes a call with the IP 500 using the ISUP (S110).

The IP 500 transmits a request message including a Correlation ID to the ZB VPN SCP 400 and requests an instruction for an announcement to be transmitted to the MSo 100 (S112).

Upon receiving a request for an instruction for announcement from the IP 500, the ZB VPN SCP 400 sends an announcement message including a supplementary service balance information of the MSo 100 and an announcement code for announcement. 500) (S114).

Upon receiving the announcement message from the ZB VPN SCP 400, the IP 500 transmits the announcement to the MSo 100 through the connected call path (S116).

After completing the announcement broadcast, the IP 500 sends the announcement broadcast completion message to the ZB VPN SCP 400 (S118).

The ZB VPN SCP 400 transmits a disconnection release message to the MSCo 120 to release the connection between the MSCo 120 and the IP 500 (S120).

The MSCo 120 releases the connection with the IP 500 (S122).

Through such a step, the MSo 100 can prevent silence generated when accessing the ZB VPN service.

As an example of the announcement above, for example, when the MSo 100 is accessing a service in a service zone in the IP 500, the MSo 100 is connected to a speed zone service. If you are outside the service zone, you cannot use the service because it is not located in the speed zone. Please try again after moving to the service area. Or, if the MSt (200) is outside the service zone, you will be unable to connect with the customer. You are trying to connect. You will be charged after the call, so please disconnect if you do not want it. "

After the transmission of the announcement for preventing silence is completed, a procedure for a known general ZB VPN service is performed.

That is, in step S108, the ZB VPN SCP 400 receiving the analysis information request signal from the MSCo 120 passes through the HLRgw 300 and the HLRo 130 in order to confirm the position of the MSo 100. To send a caller location request signal to the MSCo 120.

The MSCo 120 receiving the location request signal detects the location of the MSo 100 through a call test with the MSo 100 (S110), and sends a caller location response signal including the location information of the MSo 100. Transmit to ZB VPN SCP 400 via HLRo 130 and HLRgw 300 in turn.

Upon receiving the caller location response signal, the ZB VPN SCP 400 transmits the called party location request signal to the MSCt 220 via the HLRgw 300 and the HLRt 230 in order to confirm the location of the called party.

The MSCt 220 receiving the location request signal detects the location of the MSt 200 through a call test with the MSt 200 (S116), and sends a caller location response signal including the location information of the MSo 100. Transmit to ZB VPN SCP 400 via HLRt 230 and HLRgw 300 in turn.

The ZB VPN SCP 400, which has confirmed the caller's location from the received caller location response signal and the called party's location from the received caller location response signal, analyzes information corresponding to the analysis information request signal received from the MSCo 120. In order to transmit the response signal, the sender and the receiver determine whether to provide the ZB VPN service by determining whether the caller and the receiver are located in the area designated as the service area when the subscriber subscribes to the ZB VPN service.

The present invention described above corresponds to one embodiment belonging to the technical idea of the present invention, and is not limited thereto, and includes various modifications included in the technical idea of the present invention.

According to the present invention, in order to prevent the muting occurring in the process of accessing the ZB VPN service by the subscriber in the ZB VPN service system of the mobile communication system, the subscriber broadcasts the announcement to the subscriber terminal by using the IP. It is effective to recognize that you are connected.

Claims (7)

delete delete A caller terminal (MSo) which performs voice and data communication by using the area-based virtual private network service (ZB VPN service) by calling using a service caller number; An originating exchange (MSCo) for providing the ZB VPN service to the originating terminal; A calling home location register (HLRo) for storing subscription information of the ZB VPN service and generating a ZB VPN service access code (SAC); A called terminal for performing voice and data communication with the calling terminal using the ZB VPN service; A called side exchange which provides a call to the called terminal using the ZB VPN service in association with the calling side exchange; A called-side home location register (HLRt) for determining the position of the called-side terminal through the called-side exchanger; A customer management server (COIS / CDS) which handles the subscription of the ZB VPN service and creates and manages the service area of the ZB VPN service; A ZB VPN service control point (SCP) for controlling the originating exchange by determining whether to provide the ZB VPN service by comparing the location of the calling terminal and the called terminal with a service area of the ZB VPB service; An HLR gateway for relaying all signals between the ZB VPN SCP and the calling home location register (HLRo) and the called home location register (HLRt); An intelligent peripheral (IP) for receiving a voice announcement service processing signal from the ZB VPN SCP and sending a voice announcement message to the calling exchange; And a location server (LS) for registering and managing the ZB VPN service area; Transmitting, to the HLRo (130), a service request signal including a called number or a shortcut number to which a characteristic code is attached in the MSCo receiving the outgoing signal; Confirming whether the HLRo receives the service request signal is subscribed to the ZB VPN service through the MIN of the MSo, and transmitting a service response signal including the SAC and the called party number to the MSCo; Receiving the service response signal, transmitting, at the MSCo, an analysis information request signal including the SAC and the called party number to the ZB VPN SCP; The ZB VPN SCP receiving the analysis information request signal from the MSCo transmits a request response signal including an event type parameter for monitoring a call to the MSCo, and sends a announcement to prevent silence from being received at the MSo. Sending a temporary connection establishment operation including a routing number to the MSCo to access an IP; Receiving a routing number of an IP to transmit an announcement to the MSo at the MSCo and setting up a call with the IP using an ISUP; Transmitting a request message including a correlation ID at the IP to a ZB VPN SCP and requesting an instruction for an announcement to be transmitted to the MSo; Transmitting, to the IP, a broadcast announcement message including a supplementary service balance information of the MSo and an announcement broadcast code to be broadcasted by the ZB VPN SCP receiving the request for announcement of the announcement from the IP; The method of transmitting a silence prevention announcement broadcast of a region-based virtual private network service using a mobile communication system comprising the step of transmitting the announcement to the MSo via the communication channel connected from the IP receiving the announcement broadcast execution message from the ZB VPN SCP. The method according to claim 3, Transmitting the announcement broadcast completion message to the ZB VPN SCP at the announcement broadcast IP; Sending a disconnection indication message to the MSCo to release the connection between the MSCo and the IP in the ZB VPN SCP; The method of transmitting a silence prevention announcement broadcast of a region-based virtual private network service using a mobile communication system further comprising the step of releasing the connection with the IP in the MSCo. The method according to claim 3, Announcement broadcasting from the intelligent peripheral device (IP) is performed when the calling mobile communication terminal (MSo) is in service access in a ZB VPN service area. Method for transmitting mute prevention announcement of local based virtual private network service. The method according to claim 3, Guide broadcasting from the intelligent peripheral device (IP) is performed based on the region-based virtual communication using a mobile communication system, characterized in that when the calling mobile terminal (MSo) is outside the zone-based virtual private network (ZB VPN) service area. Method of transmitting mute prevention announcement of private network service. The method according to claim 3, The announcement broadcast from the intelligent peripheral device (IP) is performed when the destination mobile communication terminal (MSt) is located outside the zone-based virtual private network service (ZB VPN) area. How to send mute information announcement service.

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