KR20040022364A - Method and System for Severing and Uploading Multimedia Messages - Google Patents

Abstract

PURPOSE: A system for dividedly uploading multimedia messages in an MMS(Multimedia Messaging Service) is provided to divide multimedia messages in certain size, and to receive a message showing whether transmissions of the divided messages are successful, whenever the transmissions are completed, thereby reducing time for accessing a communication network. CONSTITUTION: Client terminals(100) divide multimedia messages in certain size, and transmit the divided multimedia messages. A mobile communication network(110) is connected with the client terminals(100), and transceives the divided multimedia messages. An MMS center(120) receives/stores the divided multimedia messages, responds to the transmitted multimedia messages, and transmits the multimedia messages to the client terminals(100). A user database(130) stores and updates MINs(Mobile Identification Numbers) and ESNs(Electronic Serial Numbers) of the client terminals(100), user profile information, available service information, and location registration-related information.

Description

Method and System for Severing and Uploading Multimedia Messages in Multimedia Messaging Service

The present invention relates to a method and a system for uploading a multimedia message into a plurality of multimedia messaging services. More specifically, by using the HTTP (HypeText Transfer Protocol) protocol to divide the multimedia message to be transmitted by the terminal in a certain size unit, each time the transmission of the divided message at a certain number of intervals, a message about whether the transmission is successful A method and system for dividing up and uploading multimedia messages received from a.

Since the Internet communication service, which is symbolized by the World Wide Web, has been in the spotlight, communication service has already made a big difference in human life in all aspects of society, economy and politics. It is hard to imagine life without the Internet, and the Internet is a part of life. Therefore, in recent years, the use of various high-speed communication networks, such as in order to use a variety of communication services in a better environment has increased significantly.

However, communication services such as the Internet using a computer have advantages in that the transmission speed is high and data input is convenient. However, when the communication service is no longer available, communication services cannot be used anymore. It has a disadvantage to use.

Therefore, in recent years, in order to provide communication services such as the Internet without restriction of places, many companies are spurring the development of new technology called wireless Internet. Wireless Internet refers to an environment and technology that enables users to use Internet services through a wireless network while the user is on the move. The development of technology related to mobile communication terminals and the rapid increase in the penetration rate of mobile communication terminals further promoted the development of this wireless Internet environment.

In such a wired and wireless Internet environment, a user transmits and receives data in various formats such as text, voice, image, and video using a mobile communication terminal. However, in the conventional wired and wireless Internet environment, data of various formats is not integratedly provided in one system and transmitted and received using different systems for each data format. For example, a short message is a system in which a short message service center (SMSC) is provided, and an e-mail is serviced only in a system environment having a mail server. Accordingly, a need has arisen for a system that integrally supports and manages all data regardless of the format of data to be transmitted and received. The multimedia messaging service (MMS: hereinafter referred to as 'MMS') has been made possible.

MMS refers to a messaging service that enables the transmission and reception of multimedia information by processing, converting, and selecting data in various formats to be suitable for various multimedia service environments. MMS provides a function of transmitting and receiving multimedia information and email to various devices desired by the user, away from the limited integrated services based on text or voice provided by the conventional Unified Messaging Service (UMS).

In addition, MMS supports the transmission and reception of data in various formats such as text, voice, image, and video regardless of the type of the terminal, and also supports the priority and validity period setting of data and a streaming service. When the MMS is applied, various and differentiated services such as real-time securities service, business meeting, telemedicine service, and movie watching are possible by using a mobile communication terminal.

MMS that provides such various functions can transmit and receive data in various formats using a number of commands related to sending and receiving messages defined in the HTTP protocol used in the Transmission Control Protocol / Internet Protocol (TCP / IP) environment. Here, HTTP is a communication protocol that enables information exchange between distributed servers and clients of the World Wide Web. A basic unit of data transmission and reception in a communication using the HTTP protocol is called an HTTP message. The HTTP message is composed of a sequence of octets and has a predetermined syntax.

The HTTP message includes a request message sent from the client to the server and a response message sent from the server to the client in response to the request message. Therefore, MMS implements the function of sending and receiving HTTP message between client and server by using METHOD including POST, GET, HEAD, etc. with Request message and Response message.

On the other hand, the HTTP protocol supports the function of re-sending data after the interruption or failure of a message transmission interruption or failure when a large amount of multimedia messages are transmitted (downloaded) from the server to the client. have. However, unlike a download, when a large amount of multimedia messages are transmitted (uploaded) from the client to the server, if the message transmission is interrupted or failed to be transmitted, the function of resending the interrupted part is not supported.

Therefore, in a wireless communication network where data transmission speed is relatively slow and expensive to use a service compared to a wired communication network, when a transmission error occurs while users upload data using MMS, the data must be uploaded from the beginning again. . Therefore, when a transmission error occurs, users spend a lot of time on data uploading, and it is economically burdened to pay a communication fee in proportion to a communication network access time in the current current rate system.

In order to solve the above-mentioned problem, the present invention divides a multimedia message to be transmitted from a terminal by a certain size unit using HTTP protocol, and sends a message about whether the transmission is successful every time the transmission of the divided messages is completed at a predetermined number interval. An object of the present invention is to provide a method and system for dividing and uploading a multimedia message received from a server.

1 is a block diagram schematically showing an MMS system according to a preferred embodiment of the present invention;

2 is a block diagram schematically illustrating an internal configuration of a client terminal capable of splitting and transmitting a multimedia message according to an embodiment of the present invention;

3A to 3D are exemplary screens of a request message used for retrieving a multimedia message according to an embodiment of the present invention;

4 is a flowchart illustrating a process of dividing and transmitting a multimedia message in a client terminal according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: client terminal 110: mobile communication network

112: base station transmitter 114: base station controller

120: multimedia messaging service center 130: user database

140: public switched telephone network 150: voice mail / fax server

160: Internet 170: Email Server

180: Short Message Service Center

To this end, the present invention, in a mobile communication terminal that transmits and receives data in various formats such as text, voice, image, video, etc., the multimedia message to be transmitted is divided into blocks of a predetermined length, and the identification information and order for each divided message A control unit for transmitting each of the divided messages including respective header fields indicating information; A message storage unit for temporarily storing the divided message; And a parameter storage unit for storing one or more parameters for transmitting the divided message in a TCP / IP communication environment.

According to another object of the present invention, in the multimedia messaging service system for transmitting and receiving multimedia messages having a variety of formats, a client capable of using the multimedia messaging service for dividing the multimedia message into a predetermined size unit and transmitting the divided message terminal; A mobile communication network connected to the client terminal to transmit and receive the divided message; A multimedia messaging service center which receives and stores the divided message transmitted to the client, converts the divided message into a format suitable for a receiving device, and transmits a response message to the client terminal in response to the divided message transmitted from the client terminal; And a user database interworking with the multimedia messaging service center and storing and updating information related to MIN, ESN, user profile information, available service information and location registration of the client terminal. Provide a split transmission system.

According to still another object of the present invention, there is provided a client terminal capable of using a multimedia message service, a multimedia messaging service center for transmitting and receiving a multimedia message with the client terminal through a communication network, and a user database storing various information related to the client terminal. A multimedia message service environment comprising: (a) dividing and storing, by the client terminal, the multimedia message into one or more fragmented messages of a predetermined size; (b) sending the split message including respective header fields indicating identification information and order information to the multimedia messaging service center; (c) the multimedia messaging service center transmitting an Ack Response message to the client terminal whenever the split message having a value corresponding to an integer multiple of a predetermined number is received; (d) checking, if the failure occurs during the transmission of the fragment message, the client terminal using the Ack Response message; And (e) the client terminal retransmitting the failed fragmented message to the multimedia messaging service center.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a block diagram schematically showing an MMS system according to a preferred embodiment of the present invention.

Hereinafter, the MMS system according to the preferred embodiment of the present invention uses the HTTP message transmission / reception protocol of HTTP1.1 (RFC2616).

MMS system according to a preferred embodiment of the present invention is a voice mail / connected to a plurality of client terminals 100, mobile communication network 110, MMSC (MMS Center) 120, the user database 130 and the MMSC (120) And a fax server 150, an e-mail server 170, and a short message service center 180.

The client terminal 100 refers to a terminal capable of using the wired / wireless internet and MMS having a function of transmitting, receiving or deleting a multimedia message through an MMS system. Accordingly, the user may upload the multimedia message to the MMSC 120 using the client terminal 100 or download the multimedia message from the MMSC 120. The client terminal 100 includes all communication terminals using a network of TCP / IP, for example, hand-held computers, desktop computers, and notebooks such as mobile phones, PDAs, and Pocket computers. (Notebook) A computer, etc. may be possible. However, in the embodiment of the present invention will be described by taking a mobile phone as an example of the client terminal 100.

Meanwhile, according to an exemplary embodiment of the present invention, the client terminal 100 divides the multimedia message to be uploaded in units of 512 bytes or 1024 bytes, and assigns an identifier to the divided message and uploads it to the MMSC 120. The client terminal 100 according to the embodiment of the present invention will be described in more detail with reference to FIG. 2.

The mobile communication network 110 transmits the multimedia messages transmitted from the plurality of client computers 100 to the MMSC 120, and transmits the multimedia messages transmitted from the MMSC 120 to the corresponding client terminal 100. Here, the protocol used for transmitting the multimedia message between the client terminal 100 and the MMSC 120 is HTTP.

The mobile communication network performing such a function includes a base transceiver station (BTS) 112, a base station controller (BSC) 114, and a mobile switching center (MSC) 116. do.

The MMSC 120 is a core component of the MMS system according to an embodiment of the present invention and performs a message transfer function between different messaging systems. That is, the multimedia message transmitted from the client terminal 100 or one or more separate messaging systems is received and interpreted, and then converted into a multimedia message format suitable for the corresponding receiving terminal device and transmitted.

In addition, the MMSC 120 notifies the client terminal 100 or the messaging system of the success or failure of the storage and transmission function of the multimedia message received from the client terminal 100 or one or more messaging systems, and transmits the message from the receiving terminal device. You are notified of the success and failure associated with the receipt of a message.

Meanwhile, according to an exemplary embodiment of the present invention, the MMSC 120 receives the divided message transmitted from the client terminal 100 and sends a response message related to the transmission result every time a predetermined number of divided messages are received. 100). This will be described in more detail with reference to FIG. 3.

The user database 130 may register a location for supporting mobility identification number (MIN) and electronic serial number (ESN), user profile information, available service information, and mobility of the client terminal 100 capable of using MMS. The relevant information is stored. That is, when the MMSC request from the specific client terminal 110 occurs, the MMSC 120 authenticates whether the corresponding client terminal 100 is a terminal that can use the MMS by using the user database 130, and authenticates the user. And to check the location information of the client terminal 100 to support mobility.

The voice mail / fax server 150 uses a gateway (not shown) and a public switched telephone network (PSTN) 140 to perform a function of transmitting voice mail and fax data to the client terminal 100 using MMS. Is connected to the MMSC 120.

Like the voice mail / fax server 150, the e-mail server 170 is connected to the MMSC 120 through the Internet 160 to perform a function of transmitting an e-mail to the client terminal 100 using the MMS. The e-mail server 170 sends and receives e-mails using SMTP (Simple Mail Transfer Protocol), which is a type of TCP / IP protocol, for e-mail transmission.

The short message service center 180 is also connected to the MMSC 120 through a communication network to perform a function of transmitting a short message to the client terminal 100 using the MMS.

2 is a block diagram schematically illustrating an internal configuration of a client terminal 100 capable of splitting and transmitting a multimedia message according to an exemplary embodiment of the present invention.

The client terminal 100 according to the embodiment of the present invention includes a control unit 200, a key input unit 210, a display unit 220, a message storage unit 230, a parameter storage unit 240, and a radio frequency (RF). ) 250 and the handset 260.

The controller 200 receives a key value through the key input unit 210 and divides a multimedia message to be transmitted in units of a predetermined size. In addition, a unique identifier composed of its own MIN and transmission time information is allocated to each divided message.

The key input unit 210 transmits a key value related to the operation of the client terminal 100 to the control unit 200.

The display unit 220 displays the multimedia message received from the MMSC 120 and displays various states (day, time, remaining power capacity, etc.) of the client terminal 100.

The message storage unit 230 is a type of RAM that temporarily stores a divided message of each block unit of the multimedia message divided by the controller 200.

The parameter storage unit 240 is a kind of ROM that stores various parameters used to define a rule of data transmitted and received between the client terminal 100 and the MMS system. The parameter storage unit 240 according to an embodiment of the present invention stores one or more newly defined parameters for implementing segmented transmission of a multimedia message using HTTP. Therefore, the controller 200 extracts a parameter suitable for the divided message from the parameter storage unit 240 to transmit the multimedia message in the divided message and transmits the parameter.

The RF unit 250 performs a modulation process of loading the divided multimedia message transmitted from the control unit 200 on the high frequency signal and transmits the radio signal to the radio space through the antenna ANT.

The handset 260 receives and processes a voice signal received from the MMSC 120 by the client terminal 100 through the control unit 200, transmits the signal to the outside through the speaker SP, and receives a voice input through a microphone. Processes a signal and transmits it to the control unit 200.

3A to 3D are exemplary screens of a request message used to carry up a multimedia message according to an embodiment of the present invention.

The request message according to the embodiment of the present invention includes 1. Request Line (command), 2. Message Headers (General Headers, Request Headers, Entity Headers), 3. Blank Line, and 4. Message Body. Follow the HTTP1.1 protocol. However, the technical idea of the present invention is not necessarily limited to the HTTP 1.1 protocol, and may be applied to the HTTP protocol that is version-up in the future.

3A is an example screen of a Request message used to initially upload a message divided from the client terminal 100 to the MMSC 120.

The command used in the request message of FIG. 3A is POST. The POST command is a command used by the client terminal 100 to upload a multimedia message to the MMSC 120 and deliver it to the final target server. In FIG. 3A, SP = Space, CRLF = Carriage Return LineFeed.

On the other hand, the POST command and various header fields used in the embodiment of the present invention are those defined in the HTTP 1.1 protocol, which is well known to those skilled in the art, and thus the detailed description thereof will be omitted.

Referring to the header fields of FIG. 3A, the newly defined X-Total-Seq, X-Seq-No, X-Msg-id, and X are defined in addition to the two header fields, Content-Type and Content-Length, which are used in a normal request message. It can be seen that an additional header field named -Ack-Seq is included. That is, according to an embodiment of the present invention, the newly defined header field name starts with the letter 'X'.

X-Total-Seq is an Int type header field and indicates the total number of messages divided by the client terminal 100. For example, in FIG. 3A, since X-Total-Seq = 10, it can be seen that the total number of divided messages to be transmitted by the client terminal 100 is ten. In addition, X-Total-Seq transmits only when transmitting the first fragment message.

X-Seq-No is also a header field of Int type and indicates the order information of the divided message to be transmitted by the current client terminal 100. For example, X-Seq-No = 1 is assigned to FIG. 3A because it is an example screen of the first divided message.

The X-Msg-id also serves as a unique identifier of the fragmented message uploaded from the client terminal 100 to the MMSC 120 in a header field of type Int. That is, the MMSC 120 is used to identify a fragmented message in which transmission failure occurs when uploading the fragmented message.

X-Msg-id is used in the format of X-Msg-id: MIN_MMDDHHMMSS, where MMDDHHMMSS represents month, day, hour, minute, and second information. For example, if it is used as X-Msg-id: 0114261166_0515232012, the client terminal 100 uploading the multimedia message has a MIN of 011-426-1166, indicating that the upload time is 23:20:12 seconds on May 15. . Thus, the MMSC 120 can identify the information in the X-Seq-No and the X-Msg-id to identify the fragmented message that is being uploaded, failed to upload, or completed. Meanwhile, the blank line is used to indicate the end of the header field, and the message body includes fragmented message data for upload.

X-Ack-Seq is also used to specify the number of split messages for receiving Ack Response from MMSC 120 in connection with the transmission of the split message into header fields of type Int. For example, if X-Ack-Seq: 3 is specified, the MMSC 120 may transmit an Acknowledgment (Ack) Response to the client terminal 100 whenever three divided messages are received. Of course, the Ack Response includes information on a normal reception or a reception error of a specific fragment message.

On the other hand, if the transmission method of the multimedia message using HTTP in the conventional MMS system is applied as it is, it is required to send and receive a request message for querying the transmission result and a response message for responding to the transmission of each divided message. In this case, the client terminal 100 takes a waiting time of about 1 to 2 seconds to receive the response message. During this waiting time, the transmission time of the multimedia message is greatly increased since the divided message is not transmitted. This will occur.

In order to overcome this disadvantage, in the embodiment of the present invention, the MMSC 120 is designed to transmit an Ack Response to the client terminal 100 whenever a certain number of divided messages are received. Therefore, the transmission time of the divided message is reduced according to the value of X-Ack-Seq described above. For example, if X-Ack-Seq: 3, the Ack Response is transmitted every time three split messages are received, so the message transmission time will be reduced to about one third. Of course, even when the transmission of the divided message is completed, the MMSC 120 transmits an Ack Response to the client terminal 100. X-Ack-Seq according to an embodiment of the present invention is not limited thereto, and may be used by deriving an appropriate value through repeated experiments in a real communication environment in the future.

Meanwhile, the content-length indicates a byte size serving as a reference for dividing the multimedia message. In FIG. 3A, it can be seen that the multimedia message is divided in units of 512 bytes.

3B illustrates an example of a response message when a transmission error occurs while a connection is maintained between the client terminal 100 and the MMSC 120.

The response message according to the embodiment of the present invention includes: 1. Status Line, 2. Message Headers (General Headers, Response Headers, Entity Headers), 3. Blank Line, and 4. Message Body. Follow the HTTP1.1 protocol. The response message is a message used by the MMSC 120 to respond after receiving and decrypting a request message transmitted from the client terminal 100.

The next Incorrect Sequence Number, which is the status code 600 of the Status Line of FIG. 3B, is a status code indicating that a transmission error has occurred to the client terminal 100 by the MMSC 120. In the header field item, it can be seen that the connection between the client terminal 100 and the MMSC 120 is maintained because the Connection header field is set to Keep-Alive.

Meanwhile, in the message body item of FIG. 3B, the number of split messages that the client terminal 100 needs to send back to the MMSC 120 is included in a newly defined header field of X-Start-Seq-No. Here, X-Start-Seq-No is used by the MMSC 120 to inform the client terminal 100 of the split message number in which a transmission error occurs when a transmission error of a message divided into an Int type header field occurs. . Accordingly, the client terminal 100 retransmits the fragment message in which the transmission error occurs by using the information of the X-Start-Seq-No header field included in the response message.

3C illustrates an example of a message transmitted and received when a connection is disconnected while transmitting a split message between the client terminal 100 and the MMSC 120.

In the case described in FIG. 3B, since a transmission error occurs while the connection between the client terminal 100 and the MMSC 120 is maintained, the X-Start-Seq-No header included in the response message transmitted from the MMSC 120 is described. Field may be used to retransmit the fragment message having a transmission error.

However, if the connection is suddenly disconnected between the client terminal 100 and the MMSC 120 while transmitting the split message, the client terminal 100 does not receive the information of the split message in which the transmission error occurs from the MMSC 120. The process of querying the information of the split message to be sent back to the MMSC 120 is further required.

The Request message of FIG. 3C queries the information of the split message to be retransmitted to the MMSC 120. The header field of the request message includes an X-Msg-id header field as identification information of the client terminal 100 that makes a query. Accordingly, the MMSC 120 extracts the fragment message received from the corresponding client terminal 100 using the X-Msg-id header field, and uses the information of the X-Seq-No header field included in the extracted fragment message. To notify the client terminal 100 of the number of the split message to be resent. That is, the MMSC 120 finds the last number of the X-Seq-Nos of the extracted fragment message, and puts the next number in the X-Start-Seq-No header field described with reference to FIG. 3B to the client terminal 100. send.

The response message of FIG. 3C is a message transmitted by the MMSC 120 in response to an inquiry message transmitted from the client terminal 100. For example, since it is set as X-Start-Seq-No: 123 of FIG. 3C, it can be seen that the split message up to the 122 th upload is uploaded before the connection between the client terminal 100 and the MMSC 120 is disconnected.

3D is an example screen of a request message transmitted when the client terminal 100 forcibly terminates connection with the MMSC 120 while transmitting a split message.

Referring to the header field item of FIG. 3D, an X-Msg-id header field and a newly defined X-Msg-Status header field for indicating information of a client terminal forcibly terminating the connection with the MMSC 120 are included. . Here, X-Msg-Status is a header field of Text type and is used to set the state of the fragment message that the client terminal 100 is transmitting to the MMSC 120 to a specific state. In FIG. 3D, X-Msg-Status is set to Cancel, which means that the client terminal 100 cancels the transmission of the fragment message in progress to the MMSC 120. Therefore, the MMSC 120 deletes all fragmented messages already received from the client terminal 100 and temporarily stored. The MMSC 120 does not send a response message to the client terminal 100 with respect to the request message forcibly canceling the transmission of the fragment message from the client terminal 100.

4 is a flowchart illustrating a process of dividing and transmitting a multimedia message in the client terminal 100 according to an exemplary embodiment of the present invention.

A user who wants to transmit a multimedia message using the client terminal 100 inputs a predetermined key value through the key input unit 210 (S400).

The control unit 200 that receives the transmission command of the multimedia message through the key input unit 210 divides the multimedia message to be transmitted into a predetermined predetermined size unit and temporarily stores the multimedia message in the message storage unit 230 (S402).

The controller 200 transmits a request message including a header field indicating identification information and order information to the MMSC 120 for each message divided into one or more (S404). In this case, the first fragment message includes a header field indicating the total number of fragment messages to be transmitted, an Ack Response period value for periodically receiving an Ack Response from the MMSC 120, and size information in bytes of the fragment message to be transmitted. Additionally included.

The MMSC 120 receiving the split message from the client terminal 100 determines whether the split messages are transmitted as many as the number set in the Ack Response period value (S406).

The MMSC 120 transmits an Ack Response message to the client terminal 100 whenever it confirms that the divided message is received as many as the Ack Response period value (S408).

The client terminal 200 receiving the Ack Response message from the MMSC 120 determines whether any of the Ack Response messages are related to a transmission failure (S410).

If it is determined in step S410 that there is an Ack Response associated with the transmission failure, the client terminal 100 obtains the sequence information of the fragment message having a transmission failure by using the Ack Response message and retransmits the corresponding fragment message to the MMSC 120 (S412). ).

Otherwise, if there is no Ack Response associated with the transmission failure, the subsequent split message is transmitted to the MMSC 120, and the MMSC 120 checks whether all split messages are received (S414).

If all the split messages are not received in step S414, the flow advances to step S404 to repeat the process up to step S414. Otherwise, when all the split messages are received, the MMSC 120 notifies the client terminal 100 that all the split messages have been normally received (S416).

The above description is merely illustrative of the present invention, and those skilled in the art to which the present invention pertains may various modifications without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed herein are not intended to limit the present invention but to describe the present invention, and the spirit and scope of the present invention are not limited by these embodiments. It is intended that the scope of the invention be interpreted by the following claims, and that all descriptions within the scope equivalent thereto shall be construed as being included in the scope of the present invention.

As described above, in the MMS using the conventional HTTP, the multimedia message retrieval function was not supported. However, according to the present invention, the multimedia message retrieval in the MMS is extended by newly defining the function of several headers used in the conventional HTTP. There is an advantage to being possible.

In addition, in the conventional wireless network environment is not supported in the case of resumption of uploading from the beginning when the content has to be uploaded again from the beginning there was a big disadvantage in that not only a time delay but also a large communication service consumption fee, according to the present invention, Time and cost issues are also greatly improved because only parts are required.

Claims (28)

In the mobile communication terminal for transmitting and receiving data in various formats such as text, voice, image, video, A control unit for dividing a multimedia message to be transmitted into blocks of a predetermined length and transmitting the divided messages, each of which includes header fields indicating identification information and order information for each divided message; A message storage unit for temporarily storing the divided message; And Parameter storage unit for storing one or more parameters for transmitting the divided message in a Transmission Control Protocol / Internet Protocol (TCP / IP) communication environment A mobile communication terminal capable of split transmission of a multimedia message comprising a. The method of claim 1, The parameter may include one or more parameters related to message transmission defined in the HTTP protocol and one or more parameters newly defined for segmenting and transmitting the multimedia message. The method of claim 2, One of the parameters is a mobile communication terminal capable of split transmission of a multimedia message, characterized in that it is used to indicate transmission time information for each MIN (Mobile Identification Number) of the mobile communication terminal and divided messages. The method of claim 2, And the other one of the parameters is used to indicate the total number of divided messages to be transmitted. The method of claim 2, And another one of the parameters is used to indicate order information of a divided message to be transmitted at present. The method of claim 2, Another one of the parameters is a multimedia message, characterized in that it is used to indicate the number of information of the received divided message that is a reference for periodically notifying the mobile communication terminal whether the divided message is normally received by the server. Mobile communication terminal capable of split transmission of the. The method of claim 2, The other one of the parameters is used for informing the sequence information of the divided message to be resent by the server to the mobile communication terminal in case of transmission failure during the transmission of the divided message. Possible mobile terminal. The method of claim 2, Another one of the parameters is a mobile communication terminal capable of split transmission of a multimedia message, characterized in that to be used for deleting the segmented message already uploaded to the server when the mobile communication terminal cancels the transmission of the multimedia message. In a multimedia messaging service (MMS) system for transmitting and receiving multimedia messages having various formats, A client terminal capable of using a multimedia messaging service for dividing the multimedia message into a predetermined size unit and transmitting the divided message; A mobile communication network connected to the client terminal to transmit and receive the divided message; A multimedia messaging service center that receives and stores the fragmented message transmitted to itself, converts the format into a format suitable for a receiving device, and transmits a response message to the client terminal in response to the fragmented message transmitted from the client terminal. MMSC); And A user database interworking with the multimedia messaging service center and storing and updating MIN, Electronic Serial Number (ESN) of the client terminal, user profile information, available service information and location registration information. Split transmission system of a multimedia message, characterized in that it comprises a. The method of claim 9, The multimedia messaging service system is a segmentation transmission system of a multimedia message, characterized in that to provide the multimedia messaging service using the HTTP protocol version 1.1 (Version-Up) in the future. The method of claim 10, The HTTP protocol defines and adds one or more new header fields used to split and transmit the multimedia message. The method according to claim 9 or 11, One of the header fields is used for indicating transmission time information for each MIN and the split message. The method according to claim 9 or 11, And the other one of the header fields is used to indicate the total number of split messages. The method according to claim 9 or 11, And another one of the header fields is used to indicate order information of a fragment message to be transmitted at present. The method according to claim 9 or 11, The other one of the parameters may be used to indicate information on the number of received divided messages which is a reference for periodically notifying the client terminal whether the divided messaging is normally received at the multimedia messaging service center. Split transmission system of multimedia messages. The method according to claim 9 or 11, The other one of the parameters is used to inform the multimedia messaging service center of the sequence information of the fragment message to be retransmitted to the client terminal when a transmission failure occurs during the transmission of the fragment message. system. The method according to claim 9 or 11, Another one of said parameters is used to delete a fragmented message already uploaded to said multimedia messaging service center when said client terminal cancels transmission of said multimedia message. The method of claim 9, The client terminal includes a mobile phone, a PDA, a pocket computer, a desktop computer and a notebook computer. The method of claim 9, The receiving device for transmitting and receiving the multimedia message with the multimedia messaging service center includes a voice mail / fax server connected through a gateway and a public switched telephone network (PSTN), an email server connected through the Internet, and Short message service center (SMSC: Short Message Service Center) connected via a wired communication network, characterized in that the transmission system of the multimedia message. In a multimedia message service environment in which a client terminal capable of using a multimedia message service, a multimedia messaging service center for transmitting and receiving a multimedia message with the client terminal through a communication network, and a user database storing various information related to the client terminal, (a) the client terminal dividing and storing the multimedia message into one or more fragmented messages of a predetermined size; (b) sending the split message including respective header fields indicating identification information and order information to the multimedia messaging service center; (c) the multimedia messaging service center transmitting an Ack Response message to the client terminal whenever the split message having a value corresponding to an integer multiple of a predetermined number is received; (d) checking, if the failure occurs during the transmission of the fragment message, the client terminal using the Ack Response message; And (e) the client terminal resending the failed fragmented message to the multimedia messaging service center; Split transmission method of a multimedia message comprising a. The process of claim 20, wherein in step (b) The identification information includes a MIN of the client terminal and transmission time information of each split message, and the sequence information is an integer value indicating the number of split messages each split message is. Split transmission method. The process of claim 20, wherein in step (b) The first split message further includes the total number of split messages, the predetermined number for periodically receiving the Ack Response message, and the predetermined size. The method of claim 20, wherein in step (c) And the predetermined number is the number of the divided messages transmitted for periodically receiving the Ack Response message from the multimedia messaging service center. The method of claim 20, wherein in step (d) If a transmission failure occurs while the client terminal and the multimedia messaging service center are maintained, the retransmission target fragment message is checked using the sequence information included in the Ack Response message automatically transmitted to the client terminal. Split transmission method of the multimedia message. The method of claim 20, wherein in step (d) When the client terminal is disconnected from the multimedia messaging service center, after reconnecting, the client terminal should transmit a request message including a header field indicating its MIN to the multimedia messaging service center and resend the first divided message. Splitting transmission method of a multimedia message, characterized in that the query is performed. The method of claim 25, The multimedia messaging service center transmits a response message including the sequence information of the fragment message to be transmitted again to the client terminal. The method of claim 20, wherein in step (d) If the client terminal forcibly cancels transmission during the transmission of the fragment message, the client message transmits a request message including a header field indicating its MIN information and a header field indicating cancellation of the transmission of the fragment message. Divided transmission method of multimedia messages. The method of claim 27, The multimedia messaging service center receiving the request message for canceling transmission of the whole fragment message deletes all files already received and temporarily stored from the client terminal.