KR20110131573A - System and method of offering data service based on hybrid network and control method of application server - Google Patents

Abstract

PURPOSE: A system for providing a data service, a method thereof, and a method for controlling an application server using a hybrid network are provided to effectively use a network source by using a signal, a cellular mobile communication network, and a Wi-Fi network. CONSTITUTION: An application server(209) changes the address of a sending terminal which is recorded in the connection information field in an invite message received from a sending terminal into the IP address of a media server(207) through a CSCF(Call Session Control Function)(211). The CSCF transmits the invite message including the IP address of the media server to a receiving terminal through a cellular mobile communication network which is connected with a receiving terminal.

Description

SYSTEM, METHOD OF OFFERING DATA SERVICE BASED ON HYBRID NETWORK AND CONTROL METHOD OF APPLICATION SERVER}

The following embodiments relate to a data service providing system, a method, and an application server control method, and more particularly, to a data service providing system, a method, and an application server control method using a hybrid network.

Currently, data, media or VoIP services between incoming and outgoing terminals are provided through the same access network. Therefore, there is a problem that the transmission of information between heterogeneous networks, such as a communication network using a public IP, a private IP, different mobile communication networks, or a wired or wireless network is not smooth.

In addition, it is difficult to determine the amount of data communication between the called terminal and the calling terminal between heterogeneous networks, and there is a problem that transmission to other terminals is difficult in case of data not supported by a specific terminal because media compatibility between terminals is not high. .

An embodiment of the present invention provides a data service providing system, method, and application server control method using a hybrid network that can efficiently use network resources by using a signal, a cellular mobile communication network, and a wireless network (Wi-Fi) together. To provide.

An embodiment of the present invention provides a data service providing system, a method, and an application server control method using a hybrid network capable of increasing media compatibility between heterogeneous networks.

A data service providing method using a hybrid network according to an embodiment of the present invention includes transmitting an INVITE message from an originating terminal to an application server through a call session control function (CSCF); Changing, by the application server, the address of the calling terminal recorded in the connection information field in the INVITE message to an IP address of a media server; Transmitting, by the session control device, the INVITE message including the IP address of the media server to the called terminal through a cellular mobile communication network connected to the called terminal; Connecting, by the called terminal, with the media server via a wireless network distinct from the cellular mobile communication network; And sending / receiving, by the called terminal, the media terminal and the media data through the media server using the wireless network.

Transmitting a response message to the INVITE message through the cellular mobile communication network in response to the receiving terminal receiving the INVITE message including the IP address of the media server; And changing, by the application server, the address of the called terminal recorded in the connection information field in the response message to an IP address of the media server.

Transmitting, by the application server, the response message including the IP address of the media server to the calling terminal; And connecting, by the calling terminal, with the media server using an IP address of the media server.

After the terminating terminal completes transmitting the response message through the cellular mobile communication network, the terminating terminal may further include disconnecting the cellular mobile communication network.

The session control apparatus may further include receiving, via the wireless network, a REGISTER message in which an IP address in the wireless network of the called terminal is recorded in a connection information field.

Transmitting, by the calling terminal, the INVITE message including the number of the calling terminal received from the user to an internet gateway to which the calling terminal is connected; And changing, by the Internet gateway, the number of the calling terminal to a SIP URL.

The step of changing the number of the calling terminal to the SIP URL may include: inquiring, by the Internet gateway, a number of the calling terminal from the NPDB server; Obtaining communication company information providing a service for the calling terminal from the NPDB server; And changing the number of the calling terminal to the SIP URL using the information of the telecommunication company.

Inquiring, by the session control apparatus, of a global location register (GLR) indicating an international location of the terminal to determine whether the called terminal is abroad; And transmitting, by the session control device, an INVITE message including country information about a country in which the called terminal is located, inquired from the GLR, to the called terminal.

The receiving terminal may further include setting a channel and a wireless network of a country corresponding to the country information based on the INVITE message including the country information.

In addition, the application server control method for a data service using a hybrid network according to an embodiment of the present invention comprises the steps of receiving an INVITE message from the calling terminal through a Call Session Control Function (CSCF); Changing the address of the calling terminal recorded in the connection information field in the INVITE message to an IP address of a media server; And transmitting the INVITE message including the IP address of the media server to the session control device.

Receiving, from the session control device, a response message for the INVITE message, which is transmitted through a cellular mobile communication network in response to the receiving terminal receiving the INVITE message including the IP address of the media server; And changing the address of the called terminal recorded in the connection information field in the response message to an IP address of the media server.

In addition, the data service providing system using a hybrid network according to an embodiment of the present invention, the calling terminal is recorded in the connection information field in the INVITE message received from the calling terminal through a Call Session Control Function (CSCF) It includes an application server for changing the address of the media server (IP server) IP address.

The session control device may transmit the INVITE message including the IP address of the media server to the called terminal through a cellular mobile communication network connected to the called terminal.

The session control device may receive a response message for the INVITE message transmitted through a cellular mobile communication network in response to the receiving terminal receiving the INVITE message including the IP address of the media server.

The application server may change the address of the called terminal recorded in the connection information field in the response message to an IP address of the media server.

The media server may grasp the data communication amount between the called terminal and the calling terminal, and may convert data between the calling terminal and the called terminal.

It may further include an Internet gateway for changing the number of the calling terminal received from the calling terminal to the SIP URL.

The Internet gateway converts the number of the calling terminal into the SIP URL using the communication company information of the calling terminal inquired from an NPDB server including information of a communication company providing a service for the calling terminal to the session control apparatus. Can provide.

The apparatus further includes a Global Location Resister (GLR) indicating an international location of the terminal in order to determine whether the terminating terminal is abroad, and the session control device inquires from the GLR to determine the location of the terminating terminal. A message including country information on the country where the terminal is located may be transmitted to the called terminal.

According to an embodiment of the present invention, when providing a data service, a signal is transmitted through a cellular mobile communication network, and media is relatively transmitted by transmitting through a wireless network distinct from the cellular mobile communication network. It is possible to reduce the use of expensive cellular mobile network resources and to efficiently use the network resources.

In addition, according to an embodiment of the present invention, interworking and media compatibility between heterogeneous networks may be enhanced by introducing an application server and a media server.

1 is a diagram illustrating a configuration of a network in which data service using a hybrid network is performed according to an embodiment of the present invention.
2 is a diagram illustrating a data service providing system using a hybrid network when a calling terminal performs communication using a private IP according to an embodiment of the present invention.
3 is a diagram illustrating a network configuration and control flow when a calling terminal is a PC in an Internet network in a method of providing a data service using a hybrid network according to an embodiment of the present invention.
4 is a flowchart illustrating a data service providing method using a hybrid network according to an embodiment of the present invention.
5 illustrates an INVITE message used in a method and system for providing a data service using a hybrid network according to an embodiment of the present invention.
6 is a diagram illustrating a response message to an INVITE message used in a data service providing method and system using a hybrid network according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited or limited by the embodiments. Also, like reference numerals in the drawings denote like elements.

1 is a diagram illustrating a configuration of a network in which data service using a hybrid network is performed according to an embodiment of the present invention.

Referring to FIG. 1, a network performing data service using a hybrid network includes a terminal 110, a cellular mobile communication network 130, a data service providing system 150, and a wireless network 170.

Here, the cellular mobile communication network 130 may include a WAN-based communication system such as CDMA, GSM, WCDMA, LTE, and the like, and the wireless network 170 may include a WLAN, WPAN-based communication system, such as Wi-Fi. Can be.

According to an embodiment of the present invention, the data service providing system 150 may provide a data service requested by the terminal 110 using a hybrid network.

The hybrid network provides signals and media data through different access networks (herein, cellular mobile communication network 130 and wireless network 170). That is, the hybrid network, for example, transmits a signal for providing a data service using the above-described WAN-based communication network, and actually transmits media data (which is to be transmitted using a wireless PAN-based and a wireless LAN-based communication network). It is a communication network (network) that can transmit media data. Here, the signal means various messages that are actually required to transmit / receive media data.

For example, the wireless PAN based network may include Bluetooth, UWB, and the like, and the Wireless LAN based network may include Wi-Fi and the like.

The terminal 110 may transmit and receive a signal for transmitting media data through the cellular mobile communication network 130 and then transmit the actual media data using the wireless network 170. That is, the terminal 110 may transmit / receive actual media data through the wireless network 170 without transmitting / receiving through the cellular mobile communication network 130. Accordingly, the terminal 110 may transmit the media data to be transmitted while using the cellular mobile communication network 130 which is relatively expensive to construct.

The data service providing system 150 may provide various services such as VoIP, Web surfing, E-book, Data Sync, and PUSH data to the terminal 110 using a hybrid network.

2 is a diagram illustrating a data service providing system using a hybrid network when a calling terminal performs communication using a private IP according to an embodiment of the present invention.

Referring to FIG. 2, a data service providing system using a hybrid network includes a wireless network 201, a destination terminal 203, a cellular mobile communication network 205, a media server 207, an application server 209, and a session control device ( A Call Session Control Function (CSCF) 211, a Home Subscriber Server (HSS) 213, and an originating terminal 217 may be included.

The wireless network 201 is a wireless network capable of wireless data communication, and may include, for example, a Wireless PAN series communication network such as Bluetooth, UWB, or the like, or a Wireless LAN series communication network such as Wi-Fi.

The called terminal 203 is a terminal capable of communicating with both a wireless network such as Wi-Fi and a mobile communication network. For example, the called terminal 203 may use a TCP, UDP, SIP, XCAP protocol, or the like.

The cellular mobile communication network 205 may be a wired / wireless network capable of wireless data communication and may include a WAN based communication network such as CDMA, GSM, WCDMA, LTE, and the like.

The media server 207 connects a call requested from each of the called terminal 203 and the calling terminal 217. More specifically, the called terminal 203 and the calling terminal 217 of the present invention may be connected to each other via a media server 207, which will be described in detail below.

In addition, the media server 207 may grasp the amount of data communication between the called terminal 203 and the calling terminal 217. Accordingly, the data service providing system using the hybrid network may perform billing and settlement for each terminal based on the data communication amount between the called terminal 203 and the calling terminal 217.

In addition, since the media server 207 can perform conversion on data not supported by a specific terminal, media compatibility between the calling terminal 217 and the called terminal 203 can be enhanced.

The application server 209 mediates the address of the originating terminal 217 recorded in the connection information field in the INVITE message received from the originating terminal 217 through the session control device (CSCF) 211 described later. Change to the IP address of the server 207.

In addition, the application server 209 may change the address of the called terminal 203 recorded in the connection information field in the response message to the INVITE message to the IP address of the media server 207.

According to the introduction of the media server 207 and the application server 209 described above, the present invention can perform interworking between heterogeneous networks for data services. Here, the heterogeneous network may include, for example, a public network, a private IP network, a communication network of another mobile carrier, or a wired or wireless network.

The Call Session Control Function (CSCF) 211 transmits an INVITE message including an IP address of the media server 207 through the cellular mobile communication network 205 connected to the destination terminal 203. Can be sent to.

In addition, the session control device (CSCF) 211 is configured for the INVITE message transmitted through the cellular mobile communication network 205 in response to the receiving terminal 203 receiving the INVITE message including the IP address of the media server 207. A response message can be received.

The home subscriber server (HSS) 213 may manage subscriber information (eg, subscriber location information, authentication information, service information, etc.) in all communication networks.

In addition, the HSS 213 may manage a subscriber's mobility management, user authentication information generation, service profile management, accounting information, and interworking with an IP based external service node.

The media server 207, the application server 209, and the session control device (CSCF) 211 may be connected through an IMS (IP Multimedia Subsystem) network that delivers an Internet Protocol (IP) multimedia service without wired or wireless separation. have.

The calling terminal 217 is a terminal capable of communicating with both the wireless network 201 such as Wi-Fi and the cellular mobile communication network 205, like the above-mentioned called terminal 203, for example, TCP, UDP, SIP. , A terminal capable of performing communication using an XCAP protocol or the like. The originating terminal 217 may include a personal terminal such as a mobile terminal and a PC.

In addition, the data service providing system using a hybrid network according to an embodiment of the present invention, when the calling terminal 217 is a PC, the Internet gateway for changing the number (telephone number) received from the calling terminal 217 to the SIP URL It may further include (not shown).

The internet gateway may change the number received from the originating terminal 217 into the SIP URL using the communication company information inquired from the NPDB server (not shown) and provide it to the session control apparatus 211. The NPDB server may include information of a communication company that provides a service for a number (telephone number) received from the calling terminal 217.

Here, the information of the carrier refers to information about a mobile carrier that provides various services for communication to the calling terminal 217, and may include, for example, a name of the carrier, an Internet access (domain) address, and the like.

In addition, the data service providing system using a hybrid network according to an embodiment of the present invention further includes a Global Location Resister (GLR) (not shown) indicating an international location of the terminal in order to determine whether the terminating terminal 203 is abroad. It may include.

In this case, the session control device 211 sends a message to the destination terminal 203 that includes country information on the country in which the destination terminal 203 is located, inquired from the GLR to determine the location of the destination terminal 203. Can transmit

Accordingly, the called terminal 203 may set a wireless network and channel of a country corresponding to the corresponding country information based on the message including the country information.

3 is a diagram illustrating a network configuration and control flow when a calling terminal is a PC in an Internet network in a method of providing a data service using a hybrid network according to an embodiment of the present invention.

Referring to FIG. 3, a data service providing method using a hybrid network according to an embodiment of the present invention includes a wireless network 301 including an access point (AP), a called terminal 303, and a cellular mobile communication network. 305, data server 307, application server (Application Server) 309, session control device (CSCF) 311, Internet gateway 313, NPDB server 315 and originating terminal 317 Can be provided.

When the calling terminal 317 is a PC in the Internet network, the calling terminal 317 sends an INVITE message including a number (eg, a phone number) input from the user to the Internet gateway 313 to which the calling terminal 317 is connected. (320).

The Internet gateway 313 inquires the number (phone number) from the NPDB server 315 to change the number (phone number) included in the INVITE message to the SIP URL (322).

Here, SIP (Session Initiation Protocol) is an application layer signaling protocol capable of establishing, modifying, and terminating a multimedia session such as an Internet telephone call.

A multimedia session is a multimedia data exchanged between associations of session participants. For example, a multimedia session may include voice, video, interactive game, chat, virtual reality session, and the like.

The Internet gateway 313 acquires communication company information providing a service for the corresponding number (telephone number) from the NPDB server 315 using the number (telephone number) input from the calling terminal 317 (324). The corresponding number is changed to the SIP URL using the information of 326.

The internet gateway 313 transmits an INVITE message including the SIP URL to the session control device 311 (328).

Here, if the originating terminal 317 is a mobile terminal instead of a PC, the session control device 311 includes an IP address of the originating terminal 317 directly from the originating terminal 317 instead of the process of 320 to 328. You can receive a message.

The application server 309 receives an INVITE message from the calling terminal 317 through a call session control function (CSCF) 311.

The application server 309 changes the address of the calling terminal 317 recorded in the connection information field in the INVITE message to the IP address of the media server 307 (330), and the INVITE including the IP address of the media server 307. The message is sent back to the session control device 311 (332).

The session control device 311 transmits an INVITE message including an IP address of the media server 307 to the called terminal 303 through the cellular mobile communication network 305 connected to the called terminal 303 (334).

Here, the INVITE message exchanged between the calling terminal 317 and the called terminal 303 will be described with reference to FIG. 5 to be described later.

The called terminal 303 may check whether it is possible to connect to a wireless network (eg, Wi-Fi) 301 that is distinct from the cellular mobile communication network 305 (336).

The destination terminal 303 may transmit a response message (here 200 message) to the INVITE message through the cellular mobile communication network 305 in response to receiving the INVITE message including the IP address of the media server 307 (338). .

The terminating terminal 303 may release the connection with the cellular mobile communication network 305 after completing the transmission of the response message to the session control device 311 via the cellular mobile communication network 305. In addition, the called terminal 303 may connect with the media server 307 through a wireless network 301 that is distinct from the cellular mobile communication network 305.

The application server 309 may receive a response message (eg, 200 message) in response to the INVITE message from the session control device 311 (340). Here, the response message to the INVITE message may be a message transmitted through the cellular mobile communication network 305 in response to the receiving terminal 303 receiving the INVITE message including the IP address of the media server 307.

The application server 309 may change the address of the called terminal 303 recorded in the connection information field in the response message to the IP address of the media server 307 (342).

The application server 309 may transmit a response message (here 200 message) including the IP address of the media server 307 to the originating terminal 317 (344,346,348).

Here, 200 messages exchanged between the called terminal 303 and the calling terminal 317 will be described in detail with reference to FIG. 6.

The calling terminal 317 can connect with the media server 307 using the IP address of the media server 307 (350), through which the called terminal 303 can connect to the wireless network 301 through the media server 307. In this case, the transmitting terminal 317 and the media data can be transmitted / received.

The called terminal 303 transmits a REGISTER message in which the IP address of the wireless network of the self (called terminal 303) is recorded in the connection information field in the wireless network to the session control apparatus 311 via the wireless network 301. (354).

Subsequent media transmission between the originating terminal 317 and the terminating terminal 303 is performed until the connection to the radio network is released using the IP address in the radio network 301 of the terminating terminal 303 included in the REGISTER message. Only through the wireless network (301).

After all, the signal and media data generated after being connected to the wireless network 301 are all made using only the wireless network 301, not the cellular mobile communication network 305, and thus the utilization rate for the cellular mobile communication network 305 is used. Can be reduced.

In addition, according to the data service providing method using the hybrid network according to an embodiment of the present invention, a service for the case where the called terminal 303 is located abroad is also possible.

The originating terminal 317 may inquire the GLR (Global Location Resister) indicating the international location of the terminal to the session control device 311 to determine whether the terminating terminal 303 is abroad.

When the session control device 311 transmits an INVITE message including country information about the country in which the called terminal 303 is located, which is inquired from the GLR, to the called terminal 303, the called terminal 303 includes country information. A wireless network and a channel of a country corresponding to country information may be set based on the INVITE message.

4 is a flowchart illustrating a data service providing method using a hybrid network according to an embodiment of the present invention.

Referring to FIG. 4, when the calling terminal runs an application program for receiving data service using a hybrid network (401), the user moves to perform data sync. On a target item of the application program. Attempt to connect the mobile terminal by entering the terminal number (405). Here, each originating terminal may be a personal computer (PC) and a terminal or mobile terminal performing a similar function. In addition, the number of the mobile terminal to perform the data sync (Data Sync.) May be a telephone number of the calling terminal.

The originating terminal transmits an INVITE message including the number of the mobile terminal to perform data sync. To the session control device CSCF (410).

Here, the program for receiving the data service using the hybrid network may be an application program for data sync.

In this case, if the calling terminal is a terminal (eg, a PC) connected to the Internet network, the calling terminal transmits an INVITE message including the number of the mobile terminal to perform data sync.

Upon receiving the INVITE message, the Internet gateway changes the phone number of to or less included in the INVITE message to the SIP URL, and then transmits it to the session control device (CSCF).

In order to change the telephone number to the SIP URL, it is possible to use carrier information providing a service for the calling terminal.

For example, the telephone number (here, the telephone number of the calling terminal) is 010-123-5678, and the carrier information (eg, the domain information of the mobile carrier) that provides a service for the calling terminal is xxx.co. Assuming kr, SIP URL is 0101235678@xxx.co.kr .

In this case, the Internet gateway may grasp mobile carrier information providing a service for the calling terminal by querying the NPDB, and the mobile carrier information may include, for example, domain information of the mobile communication provider.

The session control device CSCF may transmit an INVITE message to the corresponding application server AS (415). The application server AS may change the value of the connection information field in the INVITE message to the IP address of the media server and transmit it to the session control device CSCF (420).

The session control device (CSCF) transmits an INVITE message to the called terminal by using the cellular mobile communication network (425).

After receiving the INVITE message through the cellular mobile communication network, the called terminal checks whether it can connect to the wireless network (for example, Wi-Fi), and then sends a 200 message to the CSCF as a response message to the INVITE message. It may transmit (430).

The destination terminal sends a 200 message to the CSCF, disconnects (releases) the mobile communication network, and uses an IP address of the media server received through the INVITE message using the wireless network (Wi-Fi). It can be connected to (435).

The session control device CSCF may transmit the 200 message transmitted by the called terminal to the application server AS (440).

The application server AS may change the value of the connection information field in the 200 message to the IP address of the media server and transmit it to the session control device CSCF (445).

The session control device (CSCF) may transmit a 200 message to the calling terminal (450).

The originating terminal may access the IP address of the media server recorded in the connection information field value of the received 200 message (455).

Accordingly, the data connection between the called terminal and the calling terminal may be completed through the media server (460).

Thereafter, the called terminal transmits a REGISTER message in which the IP address in the wireless network of the called terminal is recorded in the connection information field to the session control device (CSCF) so that a signal generated in the future is transmitted through the wireless network.

5 illustrates an INVITE message used in a method and system for providing a data service using a hybrid network according to an embodiment of the present invention.

Referring to FIG. 5, an INVITE message is mainly a kind of request message generated by a client. When an SIP session is started, i.e., a call is made, the client (here, the calling terminal) is connected to the server side (in some cases, the called client). Terminal)). Compared with the H.323 protocol, this message is used for similar purposes as the Call Setup message.

If it is assumed in FIG. 3 that the telephone number input through the calling terminal is 010-5740-6073, the connection information field value of the INVITE message transmitted from the calling terminal to the Internet gateway is a telephone number input through the calling terminal (010-). 5740-6073).

The Internet gateway receiving the telephone number (010-5740-6073) inquires to the NPDB server using the corresponding number (010-5740-6073). The Internet gateway uses a telephone number (010-5740-6073) using carrier information (for example, xxx.co.kr, which is the domain address of the mobile carrier) that provides a service for the corresponding number obtained by an inquiry from the NPDB server. ) To the SIP URL (01057406073@xxx.co.kr).

In addition, the INVITE message generated from the originating terminal may be delivered to the called terminal via the session control device. According to an embodiment of the present invention, the application server receiving the INVITE message from the session control apparatus may perform an operation of changing the IP address of the calling terminal to the address of the media server.

For example, suppose the IP address of the calling terminal is IP4 10.240.31.103 and the IP address of the media server is 10.350.20.100. Then, the application server may change the IP address (10.240.31.103) of the originating terminal recorded in the connection information field value of the INVITE message to the IP address (10. 350. 20.100) of the media server.

By this operation, the called terminal recognizes the IP address of the calling terminal as the IP address of the media server, and transmits the media data to the media server. This process is similarly performed for the response message to the INVITE message described later.

As a result, the called terminal and the calling terminal can recognize each other's address as the address of the media server, and the media server can improve media compatibility by converting and transmitting data that is not compatible between the terminals. .

6 is a diagram illustrating a response message to an INVITE message used in a data service providing method and system using a hybrid network according to an embodiment of the present invention.

Referring to FIG. 6, the response message to the INVITE message is a response message generated by the server side (here, the counterpart client (here, the called terminal)), and the 200 message is a successful (OK) message. Compared with the H.323 protocol, this corresponds to a Connect message.

The INVITE message and the response message shown in FIGS. 5 and 6 include SIP URLs similar to email addresses to distinguish each user so that each user can be provided with a service without being dependent on the IP address.

For reference, the REGISTER message may be set to a domain name without @.

The above-described methods may be embodied in the form of program instructions that can be executed by various computer means and recorded on a computer-readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and various modifications and variations will be made to those skilled in the art to which the present invention pertains. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims below, but also by those equivalent to the claims.

110: terminal
130: cellular mobile communication network
150: data service providing system
170: wireless network

Claims (20)

Transmitting an INVITE message from an originating terminal to an application server through a Call Session Control Function (CSCF);
Changing, by the application server, the address of the calling terminal recorded in the connection information field in the INVITE message to an IP address of a media server;
Transmitting, by the session control device, the INVITE message including the IP address of the media server to the called terminal through a cellular mobile communication network connected to the called terminal;
Connecting, by the called terminal, with the media server via a wireless network distinct from the cellular mobile communication network; And
The called terminal transmitting / receiving the calling terminal and the media data through the media server using the wireless network;
Data service providing method using a hybrid network comprising a. The method of claim 1,
Transmitting a response message to the INVITE message through the cellular mobile communication network in response to the receiving terminal receiving the INVITE message including the IP address of the media server; And
Changing, by the application server, the address of the called terminal recorded in the connection information field in the response message to an IP address of the media server;
Data service providing method using a hybrid network further comprising. The method of claim 2,
Transmitting, by the application server, the response message including the IP address of the media server to the calling terminal; And
Connecting, by the calling terminal, to the media server using an IP address of the media server
Data service providing method using a hybrid network further comprising. The method of claim 2,
After the terminating terminal completes transmitting the response message through the cellular mobile communication network, the terminating terminal disconnects from the cellular mobile communication network.
Data service providing method using a hybrid network further comprising. The method of claim 1,
Receiving, by the session control apparatus, a REGISTER message in which a IP address in the wireless network of the called terminal is recorded in a connection information field through the wireless network;
Data service providing method using a hybrid network further comprising. The method of claim 1,
Transmitting, by the calling terminal, the INVITE message including the number of the calling terminal received from the user to an internet gateway to which the calling terminal is connected; And
Changing, by the Internet gateway, the number of the calling terminal to a SIP URL
Data service providing method using a hybrid network further comprising. The method of claim 6,
The step of changing the number of the calling terminal to the SIP URL is
Querying, by the Internet gateway, a number of the calling terminal to an NPDB server;
Obtaining communication company information providing a service for the calling terminal from the NPDB server; And
Changing the number of the calling terminal to the SIP URL using the information of the communication company;
Data service providing method using a hybrid network comprising a. The method of claim 1,
Inquiring, by the session control apparatus, of a global location register (GLR) indicating an international location of the terminal to determine whether the called terminal is abroad; And
Transmitting, by the session control device, an INVITE message including country information about a country in which the called terminal is located, inquired from the GLR, to the called terminal.
Data service providing method using a hybrid network further comprising. The method of claim 8,
Setting, by the called terminal, a wireless network and a channel of a country corresponding to the country information based on the INVITE message including the country information;
Data service providing method using a hybrid network further comprising. Receiving an INVITE message from a calling terminal through a Call Session Control Function (CSCF);
Changing the address of the calling terminal recorded in the connection information field in the INVITE message to an IP address of a media server; And
Transmitting the INVITE message including the IP address of the media server to the session control device.
Application server control method for data services using a hybrid network comprising a. The method of claim 10,
Receiving, from the session control device, a response message for the INVITE message, which is transmitted through a cellular mobile communication network in response to the receiving terminal receiving the INVITE message including the IP address of the media server; And
Changing the address of the called terminal recorded in the connection information field in the response message to an IP address of the media server;
Application server control method for a data service using a hybrid network further comprising. A computer-readable recording medium having recorded thereon a program for performing the method of claim 1. An application server for changing the address of the calling terminal, which is recorded in the connection information field in the INVITE message received from the calling terminal, to an IP address of a media server through a session control device (CSCF). Server)
Data service providing system using a hybrid network comprising a. The method of claim 13,
The session control device
The data service providing system using a hybrid network for transmitting the INVITE message including the IP address of the media server to the destination terminal through a cellular mobile communication network connected to the destination terminal. The method of claim 13,
The session control device
And a terminating terminal receives a response message for the INVITE message transmitted through a cellular mobile communication network in response to receiving the INVITE message including the IP address of the media server. 16. The method of claim 15,
The application server
The data service providing system using a hybrid network for changing the address of the called terminal recorded in the connection information field in the response message to the IP address of the media server. The method of claim 13,
The media server
A data service providing system using a hybrid network which grasps data communication amount between a called terminal and the calling terminal and converts data between the calling terminal and the called terminal. The method of claim 13,
Internet gateway for changing the number of the calling terminal received from the calling terminal to the SIP URL
Data service providing system using a hybrid network further comprising. The method of claim 18,
The internet gateway
Hybrid network for changing the number of the calling terminal to the SIP URL using the carrier information of the calling terminal inquired from the NPDB server including the information of the carrier providing the service for the calling terminal to the session control device. Data service providing system using. The method of claim 13,
Further comprising a Global Location Resister (GLR) indicating the international location of the terminal to determine whether the called terminal is abroad,
The session control device
System for providing a data service using a hybrid network for transmitting to the destination terminal a message containing country information on the country where the destination terminal is located, inquired from the GLR to determine the location of the destination terminal.

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