KR100625844B1 - Guidance system for telephone call service in roaming and method thereof - Google Patents

Abstract

The present invention discloses a roaming call guide service system and a service providing method using the same when a roaming message including an inbounding and outbounding is transmitted.

According to the present invention, a) attempting to register a location of a terminal through an MSC / VLR of a visitor network; b) notifying the relay location register (GLR) of the home network through a signal network relay service provider network; c) after identifying the switch at the relay location register, notifying a location registration of the terminal to a home location register (HLR); d) setting a call announcement message for an international call as a default value in a field of the home location register (HLR); e) notifying the relay location register of a guide message setting state of the home location register (HLR); f) Extract a pre-stored call announcement message based on a default value set as a field of the home location register, and call the call announcement message to an MSC / VLR of the visitor network previously identified. Transmitting; And g) transmitting the call announcement message to the terminal.

Accordingly, the present invention provides international call guide information for each country through the relay location register and signal network relay service network of the home country when outbounding or inbound roaming. It is provided with to increase the user's ease of use, it provides an effect of improving the quality of roaming services.

In addition, the present invention provides an effect that the network development can be implemented at a minimum cost, since the network modification of the overseas roaming system, the addition of the operation server is not made.

Roaming, Announcement Message, Short Message, Relay Location Register, Home Location Register

Description

Call guidance service system when roaming and service providing method using same {GUIDANCE SYSTEM FOR TELEPHONE CALL SERVICE IN ROAMING AND METHOD THEREOF}

1 is a configuration diagram for explaining a conventional roaming (Roaming).

2 is a diagram illustrating a network configuration for providing a call guide message during outbound roaming according to the present invention.

FIG. 3 is a flowchart for explaining a main operation of FIG. 2.

4 is a diagram illustrating a network configuration for providing a call guide message during inbound roaming according to the present invention.

FIG. 5 is a flowchart for explaining a main operation of FIG. 4.

6 is a diagram illustrating a call guide message according to an embodiment of the present invention.

<Description of Symbols for Main Drawings>

200/400: Visit Network 201/401: Switchboard (MSC / VLR)

203/403: Radio Network Controller (RNC) 205/405: Home Location Register (HLR)

207/407: Relay Location Register (GLR) 211/411: Signal Network Relay Provider Network

The present invention relates to a roaming service, and more particularly to an outbound roaming subscriber and an outbound roaming subscriber using a short message to guide international country codes by country. The present invention relates to a call guidance service system when roaming and a service providing method using the same.

In general, when a terminal moves from a home network (network of operators contracted by the owner of the terminal) to a visited network in a plurality of networks operated by different operators, a visitor network may be used when roaming occurs. A network of a service provider whose place is the owner's service area) is provided with a roaming service that acquires location information of a terminal moved from a home network and performs a call service for the terminal based on the acquired information. .

FIG. 1 is a signal flow diagram according to a roaming service between conventional mobile communication networks. The terminal MS_A is a home network, and the terminal MS_A moves to a B network. First, when the terminal MS_A moves from network A (home network) to network B (visiting network) (①), the moved terminal MS_A transmits a location registration message to VLR_B1 (②), and the VLR_B1 The location registration message is stored in the area A of GLR_B (③). Subsequently, the GLR_B receives the International Mobile Subscriber ID (IMSI) parameter from the location registration message registered in the area A, interprets the Mobile Conutry Code (MCC) in the IMSI parameter, and moves the MS_A from the A network. Recognize that it is a terminal.

Then, the GLR_B checks the HLRID in which the subscriber information of the terminal MS_A is stored based on the subscriber number of the terminal MS_A. For example, if the detected HLR ID is "HLR_A1", the terminal MS_A is the HLR_A1. It requests the transmission of packet subscriber information and circuit subscriber information of the network (④).

If the HLR_A1 transmits the packet subscriber information and the circuit subscriber information for the terminal MS_A to the GLR_B in response to the request (⑤), the GLR_B stores the packet subscriber information and the circuit subscriber information in the "A" area. Then, the packet subscriber information and the circuit subscriber information are transmitted to VLR_B1 and stored (⑥). The roaming terminal MS_A stores the packet subscriber information and the circuit subscriber information in the registered VLR_B1, so that the terminal MS_A can receive a normal call service in the visited network (B network). .

In particular, in order to perform the above-described operation, the GLR configured in the mobile communication network is linked with all the HLRs configured in other mobile communication networks providing roaming services, and the subscriber information is downloaded from the HLR configured in the home network of the roaming subscriber. However, in the above-described conventional roaming service providing method, there is a hassle of performing a call request based on international telephone code information provided in the form of a guidebook when connecting to another network for roaming service. Therefore, there is a need for an alternative to supplementary services for qualitative satisfaction in international roaming services.

Since GLR of mobile communication network that provides roaming service should be linked with HLR of all roamable mobile communication networks, signal traffic is complicated and all HLR of home network is opened by GLR of third-party vendor network built in visiting network. There is a security problem that subscriber information stored in the HLR may be exposed.

The present invention was created to solve the above problems, and an object of the present invention is to provide an international roaming guide information to the overseas roaming subscriber terminal through the native language of the subscriber, the cumbersome procedure or unnecessary guidance of international calls due to roaming abroad The present invention provides a call guidance service system and a service providing method using the same when roaming to suppress message listening.

In the roaming call guidance service system according to the first aspect of the present invention for achieving the above object, in an international call guidance service system using an overseas roaming network, the visitor network in a visitor network through a subscriber station; After the overseas roaming service is applied, the home network recognizes the overseas roaming service request and provides a call guide message for international call guidance to the terminal.

According to a preferred embodiment of the present invention, the call announcement message is characterized in that it is provided in a specific language according to the subscriber's native language or subscriber selection.

In addition, the visitor network may include a radio network controller (RNC) for performing a connection between a subscriber station and a wireless network; And a switch (MSC / VLR) for performing mobile switching based on a call request signal of a subscriber station coming from the radio network controller; The home network includes a home location register having a field for determining whether to send a guide message according to a call guide message setting for an international call and a subscriber request; And interworking between the exchange network of the visited network and the signal network relay provider network, and for real-time location information of the roaming terminal by identifying the exchange and protocol conversion and mobile subscriber number conversion function for roaming service between mobile communication networks, And a relay location register (GLR) for providing the pre-stored call announcement message to a corresponding terminal based on a default value set as a field of the home location register.

In addition, a service providing method using a roaming call guidance service system according to a second aspect of the present invention for achieving the above object, a) location registration of the terminal through the exchange network (MSC / VLR) of the visitor network (Visitor Network) Attempting to; b) notifying the relay location register (GLR) of the home network through a signal network relay service provider network; c) after identifying the switch at the relay location register, notifying a location registration of the terminal to a home location register (HLR); d) setting a call announcement message for an international call as a default value in a field of the home location register (HLR); e) notifying the relay location register of a guide message setting state of the home location register (HLR); f) Extract a pre-stored call announcement message based on a default value set as a field of the home location register, and call the call announcement message to an MSC / VLR of the visitor network previously identified. Transmitting; And g) transmitting the call guide message to the terminal.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 2 is a block diagram illustrating a system for roaming call guidance services according to the present invention, and illustrates outbounding roaming from a visited network to a home network.

As shown, a radio network controller (RNC) for performing a connection between a subscriber station 209 and a wireless network, and a call of the subscriber station 209 coming from the wireless network controller 203. Visitor network (200) including a switching network (MSC / VLR: 201) for performing mobile switching based on the request signal, setting up a call announcement message for international calls and sending the announcement message upon request of a subscriber A home location register 205 having a field for determining a number and interworking with a switch 201 of the visited network and a signal network relay network 211, and a protocol conversion for roaming service between mobile communication networks. Identification of the mobile subscriber number conversion function and the switch 201 to manage the real-time location information of the roaming terminal, and to the field of the home location register 205 Consists of:; (207 Gateway Location Register GLR) home network 230, consisting of the call information message previously stored on the basis of the defined default (Default) value that is sent to the location register to provide the terminal.
The home network 230 and the visited network 200 include the same configuration, and further description of the same components will be omitted.

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On the other hand, the subscriber number conversion function of the relay location register (GLR: 207) is supported in the signal network relay provider network, for example, SYNNIVERSE, for example, MIN (Mobile Identification Number) used in ANSI-41 or Represents the interconversion function between the International Mobile Subscriber Identity (IMSI) used in GSM or the Mobile Subscriber Number (MSN) used in PDC. Therefore, the description of any one conversion function in the present invention is one embodiment, which will not depart from the essential technical gist of the present invention. Here, the aforementioned signal network relay service provider network refers to a mobile communication service call processing message relay service provider, and is a representative service provider network that performs a communication service.

Hereinafter, the operation of the present invention for the above configuration will be described with reference to the accompanying drawings. 3 is a flowchart for explaining the main operation of the present invention.

As shown, the MS (209) moved from the home network (230) to the visited network (Visitor Network: 200) in step S301 is through wireless communication with the wireless network controller 203 of the visited network. A location registration request is made to an exchange (MSC / VLR) 201 of the visited network 200.

In step S303, the switch 201 performs a connection with the relay location register 207 of the home network 230 through the SS7 network of the signal network provider network 211 in response to the location registration request. The relay location register 207 performs roaming service between mobile communication providers using different protocols (ANSI-41, GSM, PDC, UMTS, etc.) according to the country-specific operating system based on the terminal 209 authentication number. The relay location register 207 recognizes the location registration request and notifies the home location register 205 of the home network 230.

The home location register 205 has a predetermined field for determining whether to allow the transmission of a guide message for an international call, and returns to the field according to the notification result of the relay location register 207. The parameter is set. The parameter has a predetermined data size and indicates a registered state or an unregistered state for roaming call guidance, and is set as a default when creating a subscriber.

In step S305, the home location register (HLR) 205 transmits parameter setting information for roaming call guidance according to the present invention to the relay location register (GLR: 207) in response to a notification of location registration of the terminal 209. do. The relay position register 205 stores the parameters in a predetermined memory.

In step S307, the relay location register 207 uses a Mobile Identification Number (MIN) in ANSI-41, or an IMSI (International Mobile Subscriber Identity) used in European GSM or PDC used in Japanese. It transmits to the switch 201 of the visited network 200 that the location registration is successfully performed through the signaling network relay service provider network protocol according to the Mobile Subscriber Number. The relay location register 207 extracts a pre-stored call guide message based on the parameter provided from the home location register 205.

That is, the relay location register 207 checks whether a parameter for the inside of the roaming call is set in the subscriber profile, and through the step S309, the relay location register 207 identifies the switch 201 previously identified. Request switching to send the call announcement message. The exchanger 201 transmits a call guide message provided from the relay location register 207 to the corresponding terminal 209 in response to a control command of the relay location register 207, but to a predetermined short message SMS. to provide.

The short message (SMS) indicates international call guide information for each country, and the subscriber should refer to when using international calls after roaming overseas based on the call guide message.

On the other hand, in another embodiment of the present invention as a configuration diagram showing a call guidance service system when roaming, inbounding roaming from the home network to the visited network is shown. 4 shows a call guidance service system when roaming inbounding according to the present invention. The configuration of this embodiment is the same as that of Fig. 2, and only reference numerals are changed for ease of explanation.

That is, the radio network controller (RNC) 403 for accessing the subscriber station 409 and the wireless network is connected to the call request signal of the subscriber station 409 flowing from the wireless network controller 403. (Visitor Network: 430) including a switching network (MSC / VLR: 401) for performing mobile switching on the basis, to set the announcement message for international calls and to determine whether to send the announcement message according to the subscriber request The home location register 405 having a field and the switch 401 of the visited network interwork with the signal network relay provider network 411, and the protocol conversion and the number of mobile subscribers for roaming services between mobile communication networks. A default function set as a field of the home location register 405 to manage the real-time location information of the roaming terminal by identifying the conversion function and the switch 401. lt) is composed of a home network 400 composed of a relay location register (GLR) for providing the pre-stored guide message to the corresponding terminal based on the value.

5 is a flowchart for explaining the main operation according to another embodiment of the present invention. As shown, in step S501 the terminal (MS: 409) requests the location registration to the switch (MSC / VLR: 401) of the home network 430 through wireless communication with the wireless network controller 403 of the home network do. In step S503, the switch 401 performs a connection with the relay location register 407 of the visited network 400 through the SS7 network of the signal network relay provider network 411 in response to the location registration request. The relay location register 407 recognizes the location registration request and then notifies the home location register 405 of the visited network 400.

In step S505, the home location register (HLR) 405 transmits parameter setting information for roaming call guidance to the relay location register (GLR) 407 in response to a notification of location registration of the terminal 409. In step S507, the relay location register 407 transmits to the switch 401 of the home network 430 that the location registration was successfully performed through the signal network relay provider network protocol. The relay location register 407 extracts a pre-stored call guide message based on the parameter.

In step S509, the relay location register 407 requests a switching to transmit a call announcement message to the exchange 401. The exchange 401 transmits a call guide message provided from the relay location register 407 to the corresponding terminal 409 in response to the control command of the relay location register 407, but to a predetermined short message SMS. to provide. Therefore, the subscriber should refer to when using an international call after roaming overseas based on the call guide message. The call guidance message is provided to the display windows of the terminals 409 and 209, as shown in FIG.

That is, when a subscriber's terminal using a third-party vendor network roams through the operator's network, a guide message is provided in a predetermined language (English) as shown in FIG. In the embodiment of the present invention, the guidance message is used in English, but may be provided in a corresponding language, for example, Japanese, German, French, etc., for each operator network as necessary.

When roaming from the operator network to the other company's network, it provides the corresponding message to the corresponding terminal via the switch of the home network through the relay location register and the signal network relay provider network of the visited network. On the other hand, when roaming from a foreign company's network to a domestic company's network, the home network provides a message (language) to the corresponding terminal through the switch network of the home network and the switching network of the visited network through the relay network. The short message is preferably 80 bytes or more, and if more than 80 bytes, the short message may be divided into two or more SMDPPs in the relay location register (GLR).

While the invention has been shown and described with respect to specific preferred embodiments thereof, the invention is not limited to the embodiments described above, and is typically used in the art to which the invention pertains without departing from the spirit of the invention as claimed in the claims. Anyone with knowledge of the world can make many variations.

As described above, the roaming call guidance service system and the service providing method using the same according to the present invention provide international call guide information for each country through the relay location register and signal network relay service network of the home country when roaming outbound or inbounding. Accordingly, when using international calls after roaming abroad, the international calling codes of each country are provided online in a native language, thereby increasing the convenience of subscribers and providing an effect of improving the quality of roaming services.

In addition, the present invention provides an effect that the network development can be implemented at a minimum cost, since the network modification of the overseas roaming system, the addition of the operation server is not made.

Claims (25)

In the international call guidance service system using the outbounding network of overseas roaming, After the overseas roaming service is applied to the visitor network through the subscriber terminal, the home network recognizes the application for the international roaming service and the call guidance message for international call guidance to the terminal. Call guidance service system when roaming, characterized in that to provide. The system of claim 1, wherein the call announcement message is provided in a subscriber's native language. The roaming call guidance service system of claim 1, wherein the call announcement message is provided in a specific language according to subscriber selection. The network of claim 1, wherein the visitor network comprises: a radio network controller (RNC) for performing a connection between a subscriber station and a wireless network; And And a switch (MSC / VLR) for performing mobile switching based on a call request signal of a subscriber station from the wireless network controller. 2. The apparatus of claim 1, wherein the home network comprises: a home location register having a field for determining whether to send a guide message according to a call guide message setting for an international call and a subscriber request; And Interworking with the exchange network of the visited network through a signaling network relay provider network, and for real-time location information of the roaming terminal by managing the protocol conversion, the number conversion function of the mobile subscriber and the exchange for roaming service between mobile communication networks, and Roaming call guidance service comprising a relay location register (GLR) for providing the pre-stored call announcement message to a corresponding terminal based on a default value set as a field of a home location register system. The network operator of claim 5, wherein the signaling network is any one of a mobile identification number (MIN) used in ANSI-41, an international mobile subscriber identity (IMSI) used in GSM, or a mobile subscriber number (MSN) used in PDC. Roaming call guidance service system, characterized in that the subscriber number conversion function using one. The roaming call guidance service system according to any one of claims 1 to 3 and 5, wherein the call announcement message is a short message (SMS). The method of any one of claims 1 to 3 and 5, wherein the short message is 80 bytes or more, and when the short message is more than 80 bytes, two or more at the relay location register (GLR). Call guidance service system when roaming, characterized in that the transmission is divided into SMDPP. In the international call guidance service system using the inbounding network of overseas roaming, After the overseas roaming service is applied in a home network through a subscriber terminal, the visitor network recognizes the overseas roaming service application and provides international call guide information to the terminal. Call guidance service system when roaming. 10. The roaming call guidance service system of claim 9, wherein the call announcement message is provided in a subscriber's native language. 10. The system of claim 9, wherein the call announcement message is provided in a specific language according to subscriber selection. 10. The network of claim 9, wherein the visitor network comprises: a radio network controller (RNC) for performing a connection between a subscriber station and a wireless network; And And a switch (MSC / VLR) for performing mobile switching based on a call request signal of a subscriber station from the wireless network controller. 10. The apparatus of claim 9, wherein the home network comprises: a home location register having a field for determining whether to send a guide message according to a call guide message setting for an international call and a subscriber request; And Interworking with the exchange network of the visited network through a signaling network relay provider network, and for real-time location information of the roaming terminal by managing the protocol conversion, the number conversion function of the mobile subscriber and the exchange for roaming service between mobile communication networks, and Roaming call guidance service comprising a relay location register (GLR) for providing the pre-stored call announcement message to a corresponding terminal based on a default value set as a field of a home location register system. 14. The roaming call guidance service system according to any one of claims 9 to 11 and 13, wherein the call announcement message is a short message (SMS). The method according to any one of claims 9 to 11 and 13, wherein the short message is 80 bytes or more, and when the short message is more than 80 bytes, two or more at the relay location register (GLR). Call guidance service system when roaming, characterized in that the transmission is divided into SMDPP. In the international call guidance service method using the outbounding network of overseas roaming, a) attempting to register a location of a terminal through an MSC / VLR of a visitor network; b) notifying the relay location register (GLR) of the home network through a signal network relay service provider network; c) after identifying the switch at the relay location register, notifying a location registration of the terminal to a home location register (HLR); d) setting a call announcement message for an international call as a default value in a field of the home location register (HLR); e) notifying the relay location register of a guide message setting state of the home location register (HLR); f) Extract a pre-stored call announcement message based on a default value set as a field of the home location register, and call the call announcement message to an MSC / VLR of the visitor network previously identified. Transmitting; And g) roaming call guidance service method comprising the step of transmitting the call guidance message to the terminal. The method of claim 16, wherein the call announcement message is provided in a subscriber's native language. The method of claim 16, wherein the call announcement message is provided in a specific language according to subscriber selection. The method of claim 16, wherein the network operator network is any one of the Mobile Identification Number (MIN) used in ANSI-41, the International Mobile Subscriber Identity (IMSI) used in GSM or the Mobile Subscriber Number (MSN) used in PDC. Roaming call guidance service method characterized in that the subscriber number conversion function using one is used. 19. The method according to any one of claims 16 to 18, wherein the call announcement message is a short message (SMS), the short message is 80 bytes or more, and the relay position when the short message is more than 80 bytes. The roaming call guidance service method characterized in that the transmission is divided into two or more SMDPP in the register (GLR). In the international call guide service method using an inbounding network of overseas roaming, a) attempting to register a location of a terminal through an exchange (MSC / VLR) of a home network; b) notifying the gateway location register (GLR) of the visitor network through the signaling network network; c) after identifying the switch at the relay location register, notifying a location registration of the terminal to a home location register (HLR); d) setting a call announcement message for an international call as a default value in a field of the home location register (HLR); e) notifying the relay location register of a guide message setting state of the home location register (HLR); f) Extract a pre-stored call announcement message based on a default value set as a field of the home location register, and call the call announcement message to an MSC / VLR of the home network previously identified. Transmitting; And g) roaming call guidance service method comprising the step of transmitting the call guidance message to the terminal. 22. The method of claim 21, wherein the call announcement message is provided in a subscriber's native language. The method of claim 21, wherein the call announcement message is provided in a specific language according to subscriber selection. 22. The method of claim 21, wherein the network operator network is any one of a Mobile Identification Number (MIN) used in ANSI-41, an International Mobile Subscriber Identity (IMSI) used in GSM, or a Mobile Subscriber Number (MSN) used in PDC. Roaming call guidance service method characterized in that the subscriber number conversion function using one is used. 24. The method of any one of claims 21 to 23, wherein the call announcement message is a short message (SMS), the short message is 80 bytes or more, and the relay position when the short message is more than 80 bytes. The roaming call guidance service method characterized in that the transmission is divided into two or more SMDPP in the register (GLR).

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