KR20100109094A - System and method for providing multimedia message service using direct access between terminals - Google Patents

Abstract

PURPOSE: A method and a system for providing a multimedia message service using a direct access between terminals are provided to transceive a multimedia message, thereby protecting privacy without revealing a personal message to the outside. CONSTITUTION: A multimedia message center receives multimedia message information except for a multimedia message text from an originating terminal. The multimedia message center obtains an IP address of the originating terminal from a packet node of a mobile communication network. The multimedia message center transmits an incoming notifying text message including the IP address of the originating terminal to an incoming terminal to induce an access to the originating terminal(S215).

Description

Method and system for providing multimedia message service using direct connection between terminals {SYSTEM AND METHOD FOR PROVIDING MULTIMEDIA MESSAGE SERVICE USING DIRECT ACCESS BETWEEN TERMINALS}

The present invention relates to a mobile communication service, and more particularly, to a multimedia message service among mobile communication services.

Recently, various additional functions have been added to a mobile terminal in addition to a function of transmitting and receiving voice calls and short messages. That is, the mobile terminal can be connected to the wireless Internet to receive web services, and is implemented to download, store, and play back so-called multimedia data such as address books, photos, animations, videos, and ringtones. In addition, the mobile terminal has been implemented to add a camera function to not only capture a general picture, but also a video, to store and play it, as well as to transmit it to another mobile terminal.

In particular, the Multimedia Message Service (MMS), defined in the International Standards Recommendation 3GPP (3rd Generation Partnership Project) Technical Specification (TS) 22.140 and 23.140, is used to provide long text messages, voice, image, Various multimedia data such as audio and video data can be transmitted and received. The multimedia message service (MMS) is one of core data services supported by a mobile carrier and a terminal manufacturer.

The process of providing a multimedia message service is as follows. First, when a multimedia message is created and sent from a mobile terminal, the sent multimedia message is transmitted to a multimedia messaging center (MMSC) of a mobile communication network. The multimedia message center stores the received multimedia message and transmits an SMS message indicating that the multimedia message has been received to the called terminal. At this time, the SMS message includes a connection URL (ie, a callback URL) for the multimedia message. The called terminal accesses the multimedia message center through a data call using the access URL included in the SMS message, and receives the multimedia message from the multimedia message center on an HTTP basis.

As described above, the structure of the conventional multimedia message service is a server-client structure in which the multimedia message is stored in the multimedia message center and the stored multimedia message is transmitted to the called terminal when requested by the called terminal. In other words, the multimedia message of the mobile subscriber is stored in the mobile communication network, so that the mobile communication provider can check the multimedia message of the mobile subscriber. A multimedia message is a personal message of a mobile subscriber, which may invade privacy. In order to prevent such invasion of privacy, the Korea Communications Commission has mandated the deletion of customer messages. However, the implementation of additional infrastructure upgrade or development costs is required to implement this.

The present invention has been proposed to improve the above problems, and an object thereof is to provide a system and method for providing a multimedia message service for reporting a personal privacy by transmitting and receiving a multimedia message by direct interworking between a calling terminal and a called terminal. .

Other objects and advantages of the invention will be described below and will be appreciated by the practice of the invention. Further, objects and advantages of the present invention can be realized by the means and the combination shown in the appended claims.

According to an aspect of the present invention for achieving the above object, a method for providing a multimedia message service in a multimedia message center of a mobile communication network, the multimedia message center, the multimedia message information excluding the contents of the multimedia message from the calling terminal Receiving receiving step; Obtaining, by the multimedia message center, an IP address of the originating terminal from a packet node of the mobile communication network; And transmitting, by the multimedia message center, an incoming notification short message including the IP address of the calling terminal to the called terminal to induce access to the calling terminal.

In addition, according to another aspect of the present invention for achieving the above object, a method for providing a multimedia message service in a communication system including a multimedia message center and a domain name server of a mobile communication network, the multimedia message center, the multimedia message content; Receiving step of receiving the multimedia message information from the originating terminal except for; Converting, by the multimedia message center, the number information of the calling terminal into Internet address information and transmitting the same to the domain name server; An IP address obtaining step of the domain name server obtaining and storing an IP address of the calling terminal from a packet node of the mobile communication network using the converted Internet address information; And transmitting, by the multimedia message center, an incoming notification short message including the converted Internet address information to a called terminal to induce access to the calling terminal.

In addition, according to another aspect of the present invention for achieving the above object, a multimedia message service providing system for providing a multimedia message service in a communication network, a packet for assigning an IP address to the communication terminal and providing a packet data service to the communication terminal Node; A multimedia message center which obtains an IP address of the calling terminal from the packet node in response to receiving multimedia message information excluding multimedia message contents from the calling terminal; And a short message center that receives the IP address of the calling terminal from the multimedia message center and transmits an incoming notification short message including the IP address to the called terminal.

In addition, according to another aspect of the present invention for achieving the above object, a multimedia message service providing system for providing a multimedia message service in a communication network, a packet for assigning an IP address to the communication terminal and providing a packet data service to the communication terminal Node; A multimedia message center for receiving multimedia message information excluding multimedia message contents from a calling terminal and converting the calling terminal's number into Internet address information; A domain name server which receives the converted Internet address information from the multimedia message center, obtains and stores an IP address corresponding to the Internet address information from the packet node; And a short message center that receives the converted Internet address information from the multimedia message center and transmits an incoming notification short message including the Internet address information to a called terminal.

The present invention as described above, in the multimedia service, by transmitting and receiving a multimedia message by direct interworking between the terminal and the terminal without storing the contents of the individual multimedia message in the communication network, it is possible to protect the personal privacy without being exposed to the outside have.

The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, in which: There will be. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a configuration of a multimedia message service system according to an embodiment of the present invention.

Referring to FIG. 1, the multimedia message service system according to the present embodiment includes a wireless access network 130, a switch 140, a short messaging service center (SMSC) 150, and a multimedia message center (MMSC). Messaging Service Center) 160, SGSN 170, GGSN 180.

In FIG. 1, mobile terminals 110 and 120 are terminals that support a multimedia message service, and support creation, reception, and storage and display of multimedia messages. The mobile terminal is provided with a client for supporting a multimedia message, and a user writes a multimedia message by using a terminal's own function (camera, etc.) or provides a multimedia content through a mobile communication network. You can connect to the server and compose a multimedia message.

When the multimedia message is created in the mobile terminals 110 and 120 and a user's request for transmission is input, the multimedia message client of the mobile terminals 110 and 120 stores the multimedia message contents in the terminal and excludes the message contents. Sends the information to the multimedia message center 160 and requests the transmission of the multimedia message. The mobile terminal 110 or 120 directly transmits the multimedia message stored in the terminal to the called terminal when the called terminal is directly connected.

The multimedia message client of the mobile terminals 110 and 120 receives, from the multimedia message center 160, authentication information of the called mobile terminal, that is, multimedia message information supported by the called terminal, such as message size information and codec information. Based on the received information, the format of the multimedia message is converted and transmitted directly to the called terminal.

In addition, the multimedia message client of the mobile terminal (110, 120), when the multimedia message is received, the IP of the originating mobile terminal that sent the multimedia message from the short message center 150, not the access URL of the multimedia message center 160 A notification SMS message including an address is received, and a multimedia message is transmitted by directly accessing an originating mobile terminal using the IP address of the mobile terminal included in the notification SMS message.

The radio access network 130 supports a mobile communication network connection of the mobile terminals 110 and 120 including a base station and a base station controller. The base station performs radio signal transmission and reception, radio channel encoding and decoding, signal strength and quality measurement, baseband signal processing, radio resource management, and self-maintenance functions under the control of a base station controller. The base station controller assigns and releases radio channels for the mobile terminals 110 and 120, controls transmission outputs of the mobile terminals 110 and 120 and base station soft cell and hard handoff decisions between cells, transcoding and vocoding. (Vocoding), operation and maintenance function for the base station.

The exchange 140 provides an interface function with the base station controller of the radio access network 130 and controls voice / video calls, data transmission and reception, and various additional services. In addition, the exchange 140 provides a connection with another external network.

The short message center 150 provides a service for transmitting and receiving a short message between the mobile terminals 110 and 120. In addition, the short message center 150 transmits a notification message indicating that the multimedia message has been received to the called party's mobile terminal (110, 120) in the transmission and reception of the multimedia message between the mobile terminal (110, 120).

The multimedia message center 160 mediates the transmission and reception of multimedia messages between the mobile terminals 110 and 120. When the multimedia message center 160 receives the multimedia message transmission request from the mobile terminals 110 and 120, the multimedia message center 160 obtains the IP address of the called-party mobile terminal from the GGSN 180, and converts the obtained IP address into the short message center ( Send a notification SMS message to the called-party mobile terminal.

When the multimedia message center 160 receives a multimedia message transmission request from the mobile terminals 110 and 120, the multimedia message center 160 excludes multimedia message contents (eg, message ID, message size, codec information, caller's telephone number, and called party's name). Only the phone number, etc.). When the multimedia message center 160 receives the multimedia message information, the multimedia message center 160 performs an authentication procedure for confirming a message format, codec information, and the like supported by the called mobile terminal, and transmits the authentication result to the calling mobile terminal.

The SGSN 170 stores location information of a mobile terminal to provide a packet data service, and also establishes a link for the packet data service with the mobile terminal, and serves as a gateway for subscriber authentication and packet data. Performs a matching function with.

The GGSN 180 assigns an IP address to the mobile terminals 110 and 120 requesting packet data services, and delivers packet data coming from the SGSN 170 to an external packet network (eg, the Internet), and also receives a packet received from an external packet network. The packet node delivers data to the SGSN 170. In the present invention, the GGSN 180 interoperates with the multimedia message center 160 to retrieve IP addresses of specific mobile terminals 110 and 120 in response to a request of the multimedia message center 160 to the message center 160. To provide.

2 is a signal flowchart illustrating a method of transmitting and receiving a multimedia message in the multimedia message service system of FIG. 1. The mobile terminal 110 of FIG. 1 is described as a calling terminal, and the mobile terminal 120 is set as a called terminal.

Referring to FIG. 2, the user composes a multimedia message from the calling terminal 110 and requests a calling (S201). Then, the multimedia message client of the calling terminal 110 stores the created multimedia message (S203) and requests the transmission of the created multimedia message to the multimedia message center 160 of the communication network (S205).

When the multimedia message client of the calling terminal 110 requests the multimedia message center 160 to transmit the created multimedia message, the caller's telephone number, message ID, called party's telephone number, message format information, etc., except for the contents of the multimedia message are transmitted. Only information is transmitted to the multimedia message center 160.

Upon receiving the multimedia message transmission request, the multimedia message center 160 performs an authentication process based on the called party's phone number (S207). Specifically, the multimedia message center 160 transmits the message format information to the called terminal 120 to receive supportable information of the message format from the called terminal 120. If the destination terminal 120 does not support the corresponding message format, the multimedia message center 160 receives supportable message format information (eg, message size / resolution information, codec information, etc.) from the destination terminal 120. . The multimedia message center 160 transmits the authentication result to the calling terminal 110.

When the authentication procedure is completed, the multimedia message center 160 requests the IP address of the calling terminal 110 to the GGSN 180 using the calling telephone number (S209), and the calling terminal 110 of the calling terminal 110 from the GGSN 180. Obtain an IP address (S211).

Subsequently, the multimedia message center 160 requests the short message center 150 to transmit the obtained IP address of the originating terminal 110 (S213). At this time, the multimedia message center 160 transmits the ID of the multimedia message to the short message center 150 together. The short message center 150 sets the IP address of the calling terminal 110 as a callback URL, creates a multimedia message incoming notification SMS message including the ID of the multimedia message, and sends the SMS message to the called terminal 120. (215).

The message client of the called terminal 120 receiving the incoming notification SMS message directly requests the multimedia message data by directly accessing the calling terminal 110 using the IP address of the calling terminal 110 included in the incoming notification SMS message. (S217). The calling terminal 110 transmits the multimedia message data stored in the terminal to the called terminal 120 using the ID of the multimedia message received from the called terminal 120 (S219). In this case, the calling terminal 110 and the called terminal 120 are connected by a direct interworking method using IPsec, and encrypts and transmits the multimedia message data when the multimedia message data is transmitted. In this case, the calling terminal 110 may format-transmit and transmit a multimedia message according to the authentication result.

The contents of the multimedia message created in the calling terminal 110 are not transmitted to and stored in the multimedia message center 160, only basic information is transmitted to the multimedia message center 160, and important contents are stored in the calling terminal 110. . The multimedia message center 160 transmits only the incoming notification SMS message including the IP address of the calling terminal 110 to the called terminal 120, and the called terminal 120 directly accesses the calling terminal 110 to transmit the multimedia message. By receiving the transmission, the multimedia message can be secured. In addition, since the transmission procedure of the conventional multimedia message is not greatly changed, development cost and operation cost can be reduced, and in the past, the multimedia message was stored in the multimedia message center 160 for 24 hours in case the called terminal is in a shadowed area. According to the present invention, the multimedia message center 160 does not store the multimedia message, thereby preventing unnecessary storage capacity.

3 is a diagram illustrating a configuration of a multimedia message service system according to another embodiment of the present invention.

Referring to FIG. 3, the multimedia message service system according to the present embodiment includes a wireless access network 330, a switch 340, a short messaging service center (SMSC) 350, and a multimedia message center (MMSC). Messaging Service Center (360), SGSN 370, GGSN 380, and Domain Name Server (DNS).

In FIG. 3, the mobile terminals 310 and 320 are terminals that support a multimedia message service, and support creation, reception and storage and display of multimedia messages. The mobile terminals 310 and 320 are equipped with a client for supporting a multimedia message, and the user writes a multimedia message directly using a terminal's own function (camera, etc.) or provides multimedia contents through a mobile communication network. You can create a multimedia message by connecting to a Contents Provider server.

When a multimedia message is created in the mobile terminals 310 and 320 and a user's request for transmission is input, the multimedia message client of the mobile terminals 310 and 320 stores the multimedia message contents in the terminal and excludes the message contents. Sends the information to the multimedia message center 360 and requests the transmission of the multimedia message. The mobile terminals 310 and 320 directly transmit the multimedia message stored in the terminal to the called terminal when the called terminal is directly connected.

The multimedia message client of the mobile terminals 310 and 320 receives, from the multimedia message center 360, authentication information of the called mobile terminal, that is, multimedia message information supported by the called terminal, for example, message resolution information, size information, codec information, and the like. Based on the received information, the format of the multimedia message is converted and transmitted directly to the called terminal.

When the multimedia message is received, the multimedia message client of the mobile terminals 310 and 320 induces a connection from the short message center 350 to the calling mobile terminal that has sent the multimedia message instead of the access URL of the multimedia message center 360. Receive a notification SMS message including an ENUM-type URL, and directly access the originating mobile terminal using the ENUM-type URL included in the notification SMS message to receive a multimedia message.

Specifically, the mobile terminals 310 and 320 transmit the ENUM type URL included in the notification SMS message to the domain name server 390 of the communication network to request the IP address of the calling mobile terminal, and from the domain name server 390. The IP address of the calling mobile terminal is received, and the multimedia message is transmitted by directly accessing the calling mobile terminal using the received IP address.

The radio access network 330 supports a mobile communication network access of the mobile terminals 310 and 320 including a base station and a base station controller. The base station performs radio signal transmission and reception, radio channel encoding and decoding, signal strength and quality measurement, baseband signal processing, radio resource management, and self-maintenance functions under the control of a base station controller. The base station controller assigns and releases radio channels to mobile terminals 310 and 320, transmit power control of mobile terminals 310 and 320, intercell soft handoff and hard handoff decisions, transcoding and vocoding. (Vocoding), operation and maintenance function for the base station.

The exchange 340 provides an interface function with the base station controller of the radio access network 330 and controls voice / video calls, data transmission and reception, and various additional services. In addition, the exchange 340 provides a connection with another external network.

The short message center 350 provides a service for transmitting and receiving a short message between the mobile terminals 310 and 320. In addition, the short message center 350 transmits a notification SMS message indicating that the multimedia message has been received to the called party's mobile terminal in transmitting and receiving the multimedia message between the mobile terminals 310 and 320. The short message center 350 transmits a notification SMS message including an ENUM-type URL received from the multimedia message center 360 to the called-party mobile terminal.

The multimedia message center 360 mediates a service for transmitting and receiving multimedia messages between the mobile terminals 310 and 320. When the multimedia message center 360 receives the multimedia message transmission request from the mobile terminals 310 and 320, the multimedia message center 360 may convert an identification number (eg, a telephone number) of the mobile terminal 310 or 320 into information of the Internet address system (that is, ENUM ( tElephone NUmber Mapping information) to the domain name server 390 to request currentization, and the short message center 350 transmits the converted Internet address information (ie, ENUM information) to notify SMS messages. Request the transfer. ENUM (tElephone NUmber Mapping) has various identification information about individuals and organizations such as internet address, telephone number, fax number, and email address. It is an identification system integrating such various identification information.

When the multimedia message center 360 receives the multimedia message transmission request from the mobile terminals 310 and 320, the multimedia message center 360 receives only multimedia message information (eg, message ID, caller's phone number, called party's phone number, etc.) excluding the contents of the multimedia message. . When the multimedia message center 360 receives the multimedia message information, the multimedia message center 360 performs an authentication procedure for checking a message format, codec information, and the like supported by the called mobile terminal, and transmits the authentication result to the calling mobile terminal.

The SGSN 370 stores location information of the mobile terminal to provide packet data services, and also establishes a link for the packet data service with the mobile terminal, and serves as a gateway for subscriber authentication and packet data. Performs a matching function with.

The GGSN 380 allocates an IP address to the mobile terminals 310 and 320 requesting packet data service, transfers packet data from the SGSN 370 to the external packet network, and transmits the packet data received from the external packet network to the SGSN ( 370). In this embodiment, the GGSN 380 cooperates with the domain name server 390 to perform the actualization of Internet address information (ie, ENUM information) in which the identification information of the mobile terminal is converted. That is, when the GGSN 380 receives the converted Internet address information (ENUM information) from the domain name server 390, the GGSN 380 retrieves an IP address corresponding to the Internet address information and transmits the IP address to the domain name server 390.

The domain name server 390 currently stores the Internet address information (ENUM information) in which the identification information of the mobile terminal is converted in association with the GGSN 380, and stores the Internet address information (ENUM information) and the IP address correspondingly. When receiving the IP address request message including the ENUM information from the mobile terminal (310, 320), the IP address corresponding to the ENUM information included in the IP address request message is retrieved and returned to the mobile terminal (310, 320).

4 is a signal flowchart illustrating a method of transmitting and receiving a multimedia message in the multimedia message service system of FIG. 3. The mobile terminal 310 of FIG. 3 is described as a calling terminal, and the mobile terminal 320 is set as a called terminal.

Referring to FIG. 4, the user composes a multimedia message in the calling terminal 310 and requests for sending (S401). Then, the multimedia message client of the calling terminal 310 stores the created multimedia message (S403), and requests the transmission of the created multimedia message to the multimedia message center 360 of the communication network (S405).

When the multimedia message client of the calling terminal 310 requests the multimedia message center 360 to transmit the created multimedia message, the caller's telephone number, message ID, called party's telephone number, message resolution information, and codec excluding the contents of the multimedia message are coded. Only information such as information is transmitted to the multimedia message center 360.

In response to the multimedia message transmission request, the multimedia message center 360 performs an authentication process based on the called party's phone number (S407). Specifically, the multimedia message center 360 transmits the message format information to the called terminal 320 to receive supportable information of the message format from the called terminal 320. If the destination terminal 320 does not support the corresponding message format, the multimedia message center 360 receives supportable message format information (eg, message size / resolution information, codec information, etc.) from the destination terminal 120. . The multimedia message center 360 transmits the authentication result to the calling terminal 110.

When the authentication procedure is completed, the multimedia message center 360 converts the caller's telephone number into ENUM information (S409), transmits the converted ENUM information to the domain name server 390, and requests for currentization (S411).

Then, the domain name server 390 transmits the received ENUM information to the GGSN 380 and requests an IP address corresponding thereto (S413), and the GGSN 380 corresponds to the received ENUM information using the received ENUM information. The IP address is searched and transmitted to the domain name server 390 (S415).

The domain name server 390 stores the IP address and the ENUM information received from the GGSN 380 correspondingly, and sends an acknowledgment (ACK) to the current request of the multimedia message center 360 to the multimedia message center 360. (S417).

Upon receiving the response, the multimedia message center 360 transmits the ENUM information to the short message center 350 and requests URI transmission (S419). That is, the multimedia message center 360 transmits the ENUM information to the short message center 350 and requests the transmission of the notification SMS message informing the reception of the multimedia message.

The short message center 350 transmits a notification SMS message in which the received ENUM information is set as a callback URL to the destination terminal 320 (S421), and the message client of the destination terminal 320 that has received the notification SMS message includes: According to a user's input or automatically, ENUM information included in the notification SMS message is extracted and the extracted ENUM information is transmitted to the domain name server 390 to request an IP address corresponding to the extracted ENUM information (S423).

The domain name server 390 searches for an IP address corresponding to the ENUM information received from the called terminal 320 and transmits the received IP address to the called terminal 320 based on the results obtained in steps S413 and S415 (S425). ). The message client of the called terminal 320, which has received the IP address, directly connects to the calling terminal 310 using the received IP address and requests transmission of the multimedia message data (S427). The multimedia message data is received (S429). In this case, the calling terminal 310 and the called terminal 320 are connected by a direct interworking method using IPsec, and encrypts and transmits the multimedia message data when the multimedia message data is transmitted. In addition, the originating terminal 110 may format-transform and transmit a multimedia message according to the authentication result.

The contents of the multimedia message created in the calling terminal 310 are not transmitted to and stored in the multimedia message center 360, only basic information is transmitted to the multimedia message center 360, and important contents are stored in the calling terminal 310. . The multimedia message center 360 converts the identification information of the calling terminal 110 into ENUM information and loads it on the incoming notification SMS message to the called terminal 320, and the called terminal 320 uses the received ENUM information. After acquiring the IP address of the calling terminal 310 through the domain name server 390, it directly accesses the calling terminal 310 and receives a multimedia message.

Only the incoming notification SMS message including the IP address of the calling terminal 110 is transmitted to the called terminal 120, and the called terminal 120 is directly connected to the calling terminal 110 to receive the multimedia message, You can keep it secure. In addition, since the transmission procedure of the conventional multimedia message is not greatly changed, development cost and operation cost can be reduced, and in the past, the multimedia message was stored in the multimedia message center 160 for 24 hours in case the called terminal is in a shadowed area. According to the present invention, the multimedia message center 160 does not store the multimedia message, thereby preventing unnecessary storage capacity.

In addition, by utilizing the domain name server 390, it is possible to reduce the development cost due to the interworking between providers. Development costs such as program changes are required to link each operator's multimedia message center and GGSN, but the development of interworking between the multimedia message center and GGSN is unnecessary by using a domain name server 390, thereby reducing development costs. In addition, the present invention can be extended to a global service.

The method of the present invention as described above may be embodied as a program and stored in a computer-readable recording medium (such as a CD-ROM, a RAM, a ROM, a floppy disk, a hard disk, or a magneto-optical disk).

While this specification includes many features, such features should not be construed as limiting the scope of the invention or the claims. Also, the features described in the individual embodiments herein can be implemented in combination in a single embodiment. Conversely, various features described herein in a single embodiment may be implemented in various embodiments individually or in a suitable subcombination.

It is to be understood that, although the operations have been described in a particular order in the figures, it should be understood that such operations are performed in a particular order as shown, or that a series of sequential orders, or all described operations, . In some circumstances, multitasking and parallel processing may be advantageous. In addition, it should be understood that the division of various system components in the above-described embodiments does not require such division in all embodiments. The program components and systems described above may generally be packaged in a single software product or multiple software products.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

The following drawings, which are attached to this specification, illustrate preferred embodiments of the present invention, and together with the detailed description of the present invention serve to further understand the technical spirit of the present invention, the present invention includes matters described in such drawings. It should not be construed as limited to.

1 is a diagram illustrating a configuration of a multimedia message service system according to an embodiment of the present invention.

2 is a signal flowchart illustrating a method of transmitting and receiving a multimedia message in the multimedia message service system of FIG. 1.

3 is a diagram illustrating a configuration of a multimedia message service system according to another embodiment of the present invention.

4 is a signal flowchart illustrating a method of transmitting and receiving a multimedia message in the multimedia message service system of FIG. 3.

Claims (14)

A method for providing a multimedia message service in a multimedia message center of a mobile communication network, Receiving, by the multimedia message center, multimedia message information excluding multimedia message contents from a calling terminal; Obtaining, by the multimedia message center, an IP address of the originating terminal from a packet node of the mobile communication network; And And transmitting, by the multimedia message center, an incoming notification short message including an IP address of the calling terminal to a called terminal to induce access to the calling terminal. The method of claim 1, Confirming, by the multimedia message center, whether the multimedia message supports a format of the multimedia message; And And transmitting, by the multimedia message center, multimedia message format information capable of being supported by the called terminal to the calling terminal. The method according to claim 1 or 2, The called terminal, And receiving a multimedia message by directly accessing the calling terminal by using an IP address included in the incoming notification short message. A method for providing a multimedia message service in a communication system including a multimedia message center and a domain name server of a mobile communication network, Receiving, by the multimedia message center, multimedia message information excluding multimedia message contents from a calling terminal; Converting, by the multimedia message center, the number information of the calling terminal into Internet address information and transmitting the same to the domain name server; An IP address obtaining step of the domain name server obtaining and storing an IP address of the calling terminal from a packet node of the mobile communication network using the converted Internet address information; And And transmitting, by the multimedia message center, an incoming notification short message including the converted Internet address information to a called terminal to induce access to the calling terminal. The method of claim 4, wherein Receiving, by the domain name server, the converted internet address information from the called terminal; And And transmitting, by the domain name server, the IP address of the calling terminal corresponding to the converted Internet address information to the called terminal. The method of claim 5, The called terminal, the multimedia message service providing method, characterized in that the direct access to the calling terminal using the IP address of the calling terminal received from the domain name server receives a multimedia message. The method according to any one of claims 4 to 6, Confirming, by the multimedia message center, whether the multimedia message supports a format of the multimedia message; And And transmitting, by the multimedia message center, multimedia message format information capable of being supported by the called terminal to the calling terminal. In the multimedia message service providing system for providing a multimedia message service in a communication network, A packet node assigning an IP address to the communication terminal and providing a packet data service to the communication terminal; A multimedia message center which obtains an IP address of the calling terminal from the packet node in response to receiving multimedia message information excluding multimedia message contents from the calling terminal; And And a short message center configured to receive an IP address of the calling terminal from the multimedia message center and transmit a call notification short message including the IP address to the called terminal. The method of claim 8, The multimedia message center, And confirming whether or not the format of the multimedia message is supported by the called terminal, and transmitting multimedia message format information supported by the called terminal to the calling terminal. 10. The method according to claim 8 or 9, The called terminal, And receiving a multimedia message by directly accessing the calling terminal by using an IP address included in the incoming notification short message. In the multimedia message service providing system for providing a multimedia message service in a communication network, A packet node assigning an IP address to the communication terminal and providing a packet data service to the communication terminal; A multimedia message center for receiving multimedia message information excluding multimedia message contents from a calling terminal and converting the calling terminal's number into Internet address information; A domain name server which receives the converted Internet address information from the multimedia message center, obtains and stores an IP address corresponding to the Internet address information from the packet node; And And a short message center which receives the converted Internet address information from the multimedia message center and transmits an incoming notification short message including the Internet address information to a called terminal. The method of claim 11, The domain name server, And receiving the converted Internet address information from the called terminal, searching for an IP address of the calling terminal corresponding to the converted Internet address information, and transmitting the received IP address to the called terminal. 13. The method of claim 12, And the called terminal is directly connected to the calling terminal by using the IP address of the calling terminal received from the domain name server and receives a multimedia message. The method according to any one of claims 11 to 14, The multimedia message center, And confirming whether or not the format of the multimedia message is supported by the called terminal, and transmitting multimedia message format information supported by the called terminal to the calling terminal.

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