KR20080014345A - Contents download system and contents server system and operating methods thereof - Google Patents

Abstract

A contents download system, a contents server system and a method of operating the contents download system are provided to test a contents download time to determine the number of mobile directory numbers, monitor a download load and adjust the number of mobile directory numbers in an overload state to control the traffic and loads of a mobile communication system and a contents server system. A contents download system includes a mobile terminal(100), a mobile communication system(110), a contents server system(120) and an event company(140). The mobile terminal downloads contents and plays the downloaded contents. The mobile communication system requests the mobile terminal to receive contents and downloads the contents at a delay interval for each forwarding group in a normal load state of a download server. The contents server system tests a time required to download contents, determines the number of forwarding groups and adjusts the number of forwarding groups when the load of the download server increases. The event company is connected to the mobile communication system and the contents server system, inputs mobile directory numbers and contents information and requests the contents server system to transmit contents.

Description

CONTENT DOWNLOAD SYSTEM AND CONTENTS SERVER SYSTEM AND OPERATING METHODS THEREOF}

1 is a flowchart of a method for transmitting a large content of a conventional mobile communication system;

2 is a functional configuration diagram of a content download system according to the present invention;

3 is a flowchart illustrating a method of operating a content download system according to the present invention;

4 is a functional configuration diagram of a content server system according to the present invention;

5 is a detailed configuration diagram of a server device according to the present invention;

6 is a flowchart illustrating a method of operating a content server system according to the present invention.

          ** Explanation of symbols on the main parts of the drawing **

100: portable terminal 110: mobile communication system

120: content server system 130: public network

140: event company 200: VMG device

210: VMG server 220: VMG memory

230: VMG Database 300: Download Server

400: server device 410: MTS server

420: multimedia server 430: location server

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the mass transfer of multimedia content using a mobile communication system. More particularly, the present invention relates to a content download system, a content server system, and an operation method for controlling traffic based on the content capacity and the load of the system.

The mobile communication system develops and provides various additional services while providing basic services for communicating with voice signals to subscribing mobile terminals.

Additional services provided by the mobile communication system include, for example, wireless Internet, TV watching, online games, mobile chat, and the like. In particular, the message service is an recently activated additional service.

The message service includes a voice message using a voice signal and a text message using a text data. The multimedia message service including a video signal has been activated as digitalization of a mobile communication system and high-speed transmission of data are enabled.

In addition, with the development of technology related to mobile terminals, functions have been advanced and models of various standards have been introduced.

Since the code division multiple access (CDMA) mobile communication system is basically provided with a text message service providing function, the text message data processing and transmission / reception standards are the same in all systems.

However, in the case of a multimedia message service, a data processing standard and a method are different for each service provider operating a mobile communication system, and a standard for generating and reproducing a multimedia message (hereinafter referred to as content) is different for each mobile terminal.

For example, in the case of the audio signal of the content, the number of synthesized sound sources or chords used for reproduction is 16, 32, 64, etc., which are different for each type of mobile terminal. There is a difference in the method, and a difference occurs in the reproduction standard due to the number of pixel units of the image frame.

Therefore, the multimedia contents transmitted and received between the service provider and the mobile terminal having different playback specifications from other mobile communication systems must be converted to be reproduced on the receiving side.

In general, a packet data communication method is used for content transmission in a mobile communication system.

The MTS (MULTIMEDIA TRANSCODER SERVER) server is used to convert the contents to conform to the playback standard of the receiving mobile terminal.

Since the content can easily convey a lot of information to be delivered, it is frequently used for the purpose of promotion, advertisement, guidance, etc. by the event company.

The VMG (VERTICAL MULTIMEDIA MESSAGE GATEWAY) device is used to transmit the contents of the same content to a plurality of designated mobile terminals and use it as an event message.

The VMG device manages whether the receiving mobile terminal receives only text messages or receives multimedia content, and checks and converts the video signal and audio signal reproduction specification or specification of the receiving side, and converts the selected MDN (MOBILE DIRECTORY NUMBER). Necessary management such as transmission to the mobile terminal.

The mobile communication system requests the mobile terminal of the MDN to receive the content, and downloads and provides the content converted according to the playback standard when there is a download request while the mobile terminal is ready.

At this time, since a call for requesting content reception is set to the mobile terminal by the MDN, a traffic congestion occurs, and a traffic congestion occurs and a load increases due to the content download request of the mobile terminal. .

Referring to FIG. 1, a method of transmitting a large-capacity content of a mobile communication system according to the related art is described. Input the MDN information that is the terminal phone number (S20).

The content information is converted into a reproduction standard of the mobile terminal to be received (S30), and the converted content is sent to the entire MDN inputted in a download manner (S40).

As described above, in the case of a large-capacity transmission for transmitting contents of the same content to a plurality of portable terminals, the contents of the contents are simultaneously transmitted to the portable terminals of the input MDN, so that traffic is temporarily congested in the system and the load is increased. there is a problem.

In order to solve the problem as described above, since the entire MDN is divided into a certain size, and the content is sent in each of the divided MDN unit, an improved prior art that reduces the temporary load increase of the system has been introduced.

However, even in the improved conventional technology, there is a problem that still does not solve the problem of traffic congestion and system load increase due to the increase in the capacity of the content transmitted by the download method.

The present invention examines the download time of contents by data size to determine the MDN configuration number of the transmission group, and monitors the download load and adjusts the number of transmission groups in case of an overload condition. It is an object of the present invention to provide a content download system, a content server system and an operation method for controlling overload.

In order to achieve the above object, the present invention is a mobile terminal for downloading and reproducing the content by the reception request of the mobile communication system; A mobile communication system for requesting content reception from the mobile terminal and downloading the content converted into a playback standard according to the download request at a delay time interval for each sending group under the normal load state of the download server; A content server system for testing the download time required for the content under the control of the mobile communication system, determining the number of the sending group, downloading the content, and adjusting the number of the sending group when the load of the download server increases; A content download system configuration including an event company requesting a transmission by inputting a large amount of MDN numbers and content information by accessing a mobile communication system and a content server system is presented.

In addition, the present invention has been made in order to achieve the above object, the mobile communication system, if there is a content transmission request to a plurality of MDN, the process of determining the number of sending groups by measuring the download time of the content; Sorting the MDNs classified by type into a sending group and sending the converted content to the playback standard by type; A method of operating a content download system including a process of reducing a configuration number of a sending group by a load change of a download server is presented.

In addition, the present invention devised to achieve the above object is to record and transmit MDN information of the mass transfer content and the portable terminal, to record the content converted to the playback standard for each type, and to control and monitor to send sequentially to the classified delivery group A VMG device; A download server for transmitting the content to the test portable terminal under the control of the VMG device to measure the download time, requesting reception of the content from each MDN, and downloading the converted content into the MDN requesting the download; A content server system configuration including a server device for recording an original of a content to be transmitted, identifying a location of a mobile terminal, and converting an original content into a reproduction standard is proposed.

In addition, the present invention devised to achieve the above object, the process of checking the time required to download the content of the test mobile terminal by the VMS device; Designating a shipment group configuration number and downloading the content converted into a playback standard for each type; If the load of the download server is greater than the threshold, the method of operation of the content server system including the process of reducing the number of delivery group configuration is suggested.

Hereinafter, a content download system, a content server system, and an operation method according to the present invention having the above configuration will be described with reference to the accompanying drawings.

2 is a functional configuration diagram of a content download system according to the present invention, FIG. 3 is a flowchart illustrating a method of operating a content download system according to the present invention, and FIG. 4 is a content diagram according to the present invention. 5 is a functional configuration diagram of a server system, FIG. 5 is a detailed functional configuration diagram of a server apparatus according to the present invention, and FIG. 6 is a flowchart illustrating a method of operating a content server system according to the present invention.

Referring to FIG. 2, the content download system according to the present invention will be described in detail. The mobile terminal 100 wirelessly connects through an allocated channel in a service area formed by a base station apparatus of the mobile communication system 110, and the mobile communication system. From 110, through the SMS NOTIFICATION information, it is requested to receive the content.

The SMS NOTIFICATION information includes URL (UNIFORM RESOURCE LOCATOR) address information so that the content can be downloaded.

The mobile terminal 100 prepares a necessary preparation for downloading the content, for example, secures a self-operating memory area for recording the downloaded content, stops a service in operation, or has a low priority or priority (TASK) application. Organize things like delaying the operation of programs.

The portable terminal 100 ready to download requests the mobile communication system 110 to download the corresponding content.

Content is a multimedia message that includes voice, text, and video signals, and includes a great amount of information, and has a feature of easily identifying information contents to be delivered only by viewing or listening once.

Content requested to be received by the mobile terminal 100 through the mobile communication system 110 is information transmitted by a search or a reservation, or an advertisement, an advertisement, an advertisement, an advertisement, an advertisement by an event company (event provider) 140, or the like. Information transmitted for the purpose, and so forth.

Event company 140 is a mobile communication system 110 connected through a public network 130 including the Internet with the number or MDN (MOBILE DIRECTORY NUMBER) information of a plurality of mobile terminals to create or create the corresponding content, and to transmit Or provide to the content server system 120 and requests the transmission.

The MDN number (phone number) information of the mobile terminal that the event company 140 inputs at one time for content transmission is, for example, tens of thousands to hundreds of thousands or millions, so that the mobile communication system 110 or the content server In system 120, a large amount of content is delivered.

The portable terminal 100 has a wide variety of models due to the development of manufacturing technology.

For example, a C-MOS (COMPLEMENTARY METAL OXIDE SEMICONDUCTOR) or a CCD (CHARGE COUPLED DEVICE) may be used as an image pickup device of a camera that captures a video signal. There are various kinds such as 1 million pixels.

The processing method of the frame unit video signal for recording the image signal photographed and input by the imaging device is largely divided into a VGA (VIDEO GRAPHIC ARRAY) method and a CIF (COMMON INTERMEDIATE FORMAT) method.

In particular, in one mobile terminal, it is common that the video signal processing method, i.e., the recording standard and the reproduction standard are the same.

VGA was introduced by IBM in 1987 and is now the standard standard for monitors in many computers.

VGA resolution depends on the number of colors displayed. For example, a resolution of 640 * 480 pixels (PIXEL) can represent 16 colors, and to use 256 colors, the resolution must be reduced to 320 * 200 pixels. .

In addition, the CIF method is a video signal processing method of a videoconferencing system, which supports NTSC and PAL methods, and supports a data transmission rate of 30 frames per second, and each frame includes 352 pixels and 288 lines.

Related to the CIF method, QCIF (QUARTER CIF) transmits a data amount of 1/4, and is suitable for videoconferencing data transmission using a telephone line, and CIF is referred to as FCIF (FULL CIF) to distinguish it from QCIF.

In terms of cost, the mobile terminal has a high end model and a low end model. In general, a high end product uses a VGA type lens assembly (ASSY: ASSEMBLY), and a low price product uses a CIF type lens assay. The specifications are different, for example.

Since the types of models of the mobile terminals to receive and reproduce the contents created or generated by the event company 140 are different, and the reproduction standards are different, the contents must be converted and transmitted to the reproduction standards of the portable terminal.

The content server system 120 records and updates (UPDATE) the model type and related standard information of the entire mobile terminal 100 subscribed to the mobile communication system 110, and records the original content in the allocated area. do.

It also has an MTS server function for converting original content into a playback standard of the receiving portable terminal 100, and records the content converted by the MTS server function in an allocated area.

That is, the content server system 120 confirms the playback specification of the mobile terminal of the MDN input by the event company 140 as the content transmission target, converts the input content into the confirmed playback specification, and transmits it to the portable terminal 100. do.

When the content converted into the reproduction standard is transmitted to the portable terminal, since the download method is used, the content server system should be provided with a server managing the download (D / L).

In addition, by checking the current location of the mobile terminal of the MDN to which the content is to be transmitted, if it is out of the service area, it is excluded from the call connection target to prevent traffic congestion and reduce communication costs.

The mobile communication system 110 must confirm the current location of each mobile terminal in movement for the call connection processing of the path setting communicating with the mobile terminal 100, record and update the identified location information, and manage the contents. If requested by the server system 120 is provided immediately.

In other words, the event company 140 is intended to quickly and quickly simultaneously send the notification to the mobile terminal 100 of a large number of MDN number created content.

In addition, the mobile communication system 110 must respond to the call connection request of the general subscriber while the number of simultaneous call connection can be limited to the mechanical switching processing capacity of the mobile switching center.

Therefore, the number of call connection where the event-oriented content is simultaneously transmitted by the operator or administrator of the mobile communication system is within the range of long-term experience or experimentally secured, preventing temporary traffic congestion, and accordingly the SHUT DOWN of the system It is limited to the extent to prevent occurrence.

When the mobile communication system 110 requests the mobile terminal 100 to receive content, traffic is generated and traffic is generated even when a download request signal is received from the mobile terminal ready for download.

In addition, even in the case of a download server providing content, when there are download requests from many mobile terminals at one time, a load may increase and an error may occur or a shut down phenomenon may be stopped.

In other words, if the mobile communication system needs to maintain and manage traffic such as a request for receiving content and traffic caused by the content download request of the mobile terminal so that an error due to the congestion does not occur, the present invention provides such a method. It is a technique that solves the need.

Referring to Figure 3 will be described in detail the operating method of the content download system according to the present invention.

When there is a content transmission request from the event company 140 (S100), the mobile communication system 110 inputs content information to be transmitted and a large amount of MDN number information (S110).

The mobile communication system 110 controls the content server system 120 to record the input content and the MDN information in the allocated area, respectively, and analyze the size (SIZE) of the content (S120).

In the size analysis of the content to be transmitted, the selected mobile terminal is designated as the test portable terminal, the content is converted into the playback standard, and downloaded to the test portable terminal through the download server.

When the test portable terminal completes the download of the corresponding content, the download server is controlled to measure the time required for the download.

Since the downloaded download time is analyzed, the number of possible call connections that can simultaneously request to receive content in the mobile communication system is estimated.

The estimated number is the number to which the MDN can be sent at one time, and is assigned and determined by the number of sending groups.

The content server system 120 under the control of the mobile communication system analyzes the input large amount of MDN number information, sorts them by model type of the mobile terminal (S130).

That is, since a large number of MDN numbers are portable terminals of the same model, they are sorted by type of model.

The content server system 120 checks each playback standard for each model type of the mobile terminal, converts the original content so that it can be played on the mobile terminal of the corresponding model, and divides it by the determined number unit to sequentially designate the delivery group ( S140).

The content server system 120 controls the mobile communication system to request the mobile terminal of each MDN number constituting the sending group to receive content by SMS NOTIFICATION.

If there is a download request from each mobile terminal of such MDN, the download server is controlled. Therefore, the mobile communication system controls and monitors the content converted into the playback standard to be transmitted to the mobile terminal according to the set order of the sending group. S150).

When sending is completed to all MDNs in the sending group, it is checked whether the set delay time is reached. If the counting of the delay time is completed, the load value of the download server is detected to determine whether the value is greater than the set threshold value. Check whether it is operating under normal load (LOAD) (S170).

If the download server does not operate under normal load, the number of the sending group is determined and determined by subtracting a predetermined numeric value set from the number designated and determined as the sending group, and fed back to the sending process (S140) (FEEDBACK) S180).

For example, whenever it is determined that the download server is overloaded, the number of the sending group is reduced by subtracting 10 from the number designated as the sending group, thereby reducing the traffic of the mobile communication system and reducing the load of the downloading server.

When the download server is operated under normal load, the content server system 120 checks whether the content of the content converted into the playback standard is completed in the entire MDN, and returns to the sending process (S140) when the sending is not completed. FEEDBACK), and if the shipment is completed (S190).

Therefore, the present invention having the above configuration adjusts the configuration number of the sending group that notifies the SMS NOTIFICATION in the mobile communication system, thereby controlling the congestion of outgoing traffic and indirectly controlling the load of the download server, so that the entire system operates stably. There is an advantage to be.

In addition, the input MDN information is analyzed, classified according to the mobile terminal model type, and the content converted by the reproduction standard for each type is transmitted, thereby saving processing time and transmitting the content quickly.

4 and 5, the content server system according to the present invention will be described in detail. The content server system 120 includes a VMG device 200, a download server 300, and a server device 400.

When the content and a large amount of MDN information are applied together with a signal for requesting content transmission, the VMG device 200 measures the download time through a test portable terminal, determines the number of the delivery group, and classifies the delivery group by type. By controlling and monitoring the converted content to be downloaded to each MDN, the VMG server 210, the VMG memory 220, and the VMG database 230 are provided.

The VMG server 210, for example, when a content transmission request of the event company 140 is input, inputs original content that is authorized and records it in the MMS server 420 of the server device. The MDN information input together with the VMG memory ( 220) to be recorded in the area.

In addition, the download server 300 measures the load value generated while downloading the content converted into the playback standard by the request of the mobile terminal of the MDN, and compares the set threshold value and the measured load value, If it is confirmed, control to reduce the MDN number constituting the sending group by a predetermined unit.

In addition, the MDN information input is classified according to the model type of the mobile terminal, sorted by the sending group unit, and requested by SMS NOTIFICATION to receive the content in the MDN mobile terminal of each sending group by the delay time, and after the delay time Next, the MDN mobile terminal of the next sending group is controlled to request content reception.

Under the control of the VMG server 210, the VMG memory 220 allocates a content signal converted into a content reproduction standard for each type of MDN mobile terminal and a large amount of MDN information input by the event company 140, respectively. At the same time, the information operated for content transmission is recorded.

The VMG database 230, under the control of the VMG server 210, content reproduction standard information of each type of mobile terminal, a delay time value, a set load threshold value of the download server 300, and numerical information of the delivery group. Record and update management.

The download server 300 transmits the content to the test portable terminal under the control of the VMG device 200 to measure the download time, and requests the MDN portable terminal of the sending group to receive the content by SMS NOTIFICATION. The content converted into a playback standard is transmitted to the MDN portable terminal requesting the download by downloading.

The server device 400 is composed of a MTS (MULTIMEDIA TRANSCODER SERVER) server 410, a MULTIMEDIA MESSAGE SERVER (MMS) server 420, and a location server 430.

The MTS server 410 receives the original content and the reproduction standard information under the control of the VMG device 200, and converts the contents so that the portable terminal of the reproduction standard reproduces without error.

The multimedia (MMS) server 420, under the control of the VMG device 200, records the original content and performs general multimedia message creation and reproduction processing of the received multimedia message.

The location server 430 checks whether the mobile terminal is located in the service area by searching the current location of the mobile terminal. When the mobile terminal by a large amount of MDN leaves the service area, the location server 430 excludes the content from the content transmission target. Reduce occurrences and unnecessary communication costs of event companies.

6, 2, 4, and 5, the method of operating a content server system according to the present invention will be described in detail.

The VMG device 200 constituting the content server system is an event company 140 or is authorized through the mobile communication system 110 and receives content transmission request information (ST200).

The content transmission request information includes content to be transmitted, a mobile terminal number by a large amount of MDN, time information for requesting transmission, and the like.

The VMG device 200 records the original content information among the input content information in the multimedia (MMS) server 420, and records a large amount of MDN portable terminal number information in the VMG memory 220 area.

In order to transmit the input content to the mobile terminal 100 of the designated MDN without overloading and overloading the traffic of the mobile communication system 110 and the content server system 120, the traffic is controlled. Measure

That is, the VMG device 200 requests the test mobile terminal 100 to receive content using SMS NOTIFICATION information (ST210), and sends the VMG device 200 to the VMG device 200 by the test mobile terminal 100 confirming the request signal. The download of the content is requested (ST220).

The VMG device 200 checks the playback standard of the mobile terminal that has requested the download, and converts the content so that the content can be played without error (ST230).

The content converted into the reproduction standard is applied to the download server 300 and controlled to be downloaded in a corresponding manner (ST240), and the download server 300 downloads in a manner specified in the test portable terminal 100 (ST250).

The download method includes a streaming method in which, when a part of the set size is downloaded from the entire data, the streaming method continues to download the remaining data while the playback starts, and the download method reproduces after receiving the entire data.

The VMG device 200 controls the download server 300 to measure the time required to completely download the content in the test portable terminal 100 without errors (ST260).

The test portable terminal is not specially manufactured, but is the same as a general portable terminal, and is a portable terminal selected for testing.

The VMG device 200 analyzes the measured download time, calculates a number that can simultaneously make a maximum call connection without traffic congestion to the mobile communication system 110, and calculates the number of sending groups. Specify.

In addition, the mobile terminal of the MDN is classified by model, and the sending group is sequentially sorted by the calculated number (ST270).

According to the sorted order, the MDN portable terminal 100 of the corresponding sending group is requested to receive the content using SMS NOTIFICATION (ST280), and the content download request signal is returned from the mobile terminal 100 (ST290).

The VMG apparatus 200 checks the reproduction standard for allowing the content to be reproduced without error in the type of portable terminal of the sending group, and converts the content to conform to the reproduction standard (ST300).

The content converted to the playback standard of the delivery group is controlled to be transmitted to the download server along with the MDN information of the delivery group (ST310).

The download server 300 downloads the converted content to the mobile terminal 100 by the MDN of the designated sending group (ST320).

The VMG device 200 monitors the download server 300 to detect a load value, and checks whether or not an overload condition is established in comparison with the set threshold value (S330).

As a result of the load monitoring of the download server 300, if it is determined that the overload is detected, the number of groups of the shipment group is reduced and adjusted, and after the predetermined delay time has elapsed, the next shipment group is designated in the following order. Since it returns to the monitoring process (ST280), it repeats until the content download is completed to the entire MDN input (ST340).

Therefore, according to the download time of the content, the number constituting the sending group unit is determined, and if the load due to the content download increases by monitoring the download server, the unit number of the sending group is further reduced and adjusted. As traffic congestion and load are reduced, there is an advantage of indirect control so that the entire system can be stably operated.

According to the present invention having the above-described configuration, when a large amount of content signals are transmitted, there is an industrial use effect of increasing the operation rate of the system by notifying the mobile terminal to receive the content as much as possible while preventing temporary traffic congestion of the mobile communication system.

In addition, when the server downloading the content at the request of the mobile terminal is operated by overloading the threshold value, the industrial use of indirectly controlling the load of the download server because the SMS NOTIFICATION SCHEDULER distributes and adjusts the number of sending groups. It works.

In addition, the system can stably operate the system by monitoring the load of the download server to prevent the traffic congestion of the mobile communication system due to simultaneous occurrence of content connection request call connection and content download of the mobile terminal. There is a convenient effect in use to increase the reliability.

In addition, it analyzes a large amount of MDN information, classifies by type of mobile terminal model, and converts and transmits the content to the playback standard for each classified type, thus saving the content conversion time and reducing the load on the system and transmitting the content quickly. It works.

Claims (22)

A mobile terminal for downloading and playing contents by a reception request of a mobile communication system; A mobile communication system requesting the mobile terminal to receive contents and downloading contents converted into a playback standard at a delay time interval for each sending group under a normal load state of a download server; A content server system for testing the download time required for the content under the control of the mobile communication system, determining the download group configuration number, and downloading the content group, and adjusting the number of the delivery group if the download server is overloaded; An event company which accesses the mobile communication system and the content server system and requests a transmission by inputting a large amount of MDN numbers and content information; Content download system, including The method of claim 1, A content download system further comprising a public network providing a connection path between the mobile communication system, a content server system, and an event company, and providing a connection path with another communication network. The portable terminal of claim 1, wherein A content download system, characterized in that it comprises a test portable terminal for measuring the download time of the content to be sent. Determining, by the mobile communication system, that there is a content transmission request to the plurality of MDNs, determining the number of sending groups by measuring the download time of the content; Sorting the MDNs classified by type into a sending group and sending the converted content to the playback standard by type; Adjusting a configuration number of a sending group according to load variation of a download server; The content download system operating method of the configuration included. If the mobile communication system determines that there is a large amount of content transmission request, the process of inputting the content and MDN, controlling the content server system, the test and analysis of the content download time to determine the composition number of the sending group; Classifying and sorting MDNs according to the types of mobile terminals by the content server system, specifying a configuration number of a sending group, and converting and sending contents; Checking the load of the download server when the set delay time has elapsed after sending the content, and if the load is large, repeating the decrease of the dispatch group designation number until the content is sent to the entire MDN; Operation method of the content download system configured to include. The method of claim 5, wherein the analyzing process, Checking whether there is a large content transmission request from the event provider by the mobile communication system; If the content transmission request is made, inputting content to be transmitted and MDN information and recording the same to a content server system; Controlling the content server system to analyze the data size of the content to be transmitted, to measure the download time, and to determine the number of sending groups; Operation method of a content download system, characterized in that consisting of. The method of claim 6, wherein the determination process, The content server system controls the download server to receive and download the content to the test portable terminal; Measuring, by the download server, a time at which a test mobile terminal completes downloading of content; And analyzing the measured download time information to determine the MDN configuration number of the sending group to download the content simultaneously. The method of claim 5, wherein the sending process, Sorting and sorting the MDNs inputted by the content server system under the control of the mobile communication system according to the type of mobile terminal; Checking the playback specification for each of the above types, converting the contents, and specifying the number of the sending group; Operating method of the content download system, characterized in that consisting of the step of sequentially sending the content converted by the sending group. The method of claim 5, wherein the repetition process, Checking whether a delay time set by the content server system has elapsed; When the delay time elapses, checking whether the download server is operated under a normal load state below a set threshold value; If the overload is overloaded, subtracting a predetermined number from the determined number of the sending group to adjust the sending group number and returning to the sending process; In the case of normal load in the confirmation process, checking whether the content has been sent to the entire MDN entered, and if not completed, returns to the sending process, and if the sending is completed, proceeding to end; Operation method of a content download system, characterized in that consisting of. A VMG device for recording mass transmission contents and MDN information, recording contents converted into a reproduction standard for each type, and controlling and monitoring them to be sequentially transmitted to a sorted delivery group; A download server for transmitting a content to a test portable terminal under the control of the VMG device to measure a download time, requesting reception of content to each MDN, and downloading the converted content to the MDN requesting a download; A server device for recording the original of the content to be transmitted, identifying the location of the MDN, and converting the original content into a playback standard; Content server system is configured to include. The method of claim 10, wherein the VMG device, A VMG server for classifying the MDN information according to the type of mobile terminal, arranging delivery groups in a determined number unit that can be downloaded simultaneously, and controlling and monitoring the converted content to be sent to each delivery group in units of delay time; A VMG memory for recording each type of content signal and input MDN information, each of which is converted into a reproduction standard under the control of the VMG server, in an allocated area; A VMG database for recording and updating management for each type of playback specification, delay time, and delivery group information under the control of the VMG server; Content server system, characterized in that consisting of. The method of claim 10 or 11, wherein the VMG server, And if the load of the download server is largely determined to be greater than or equal to a set threshold value, the content server system comprising a configuration of reducing the number of MDNs constituting a sending group by a set unit. The method of claim 11, The VMG server is configured to request to receive the content in the MDN classified and arranged in the delivery group, and after the delay time to request the reception of the content in the MDN of the next sequential delivery group. The method of claim 13, wherein the VMG server, And if there is a download request of the content from each MDN requesting the reception of the content, controlling and monitoring the converted content in the VMG memory area to be transmitted in a download manner. The method of claim 10, wherein the server device, An MTS server for converting original content into content of a standard that can be reproduced by a mobile terminal for each type of MDN under the control of the VMG device; A multimedia server for recording and retrieving original content under control of the VMG device; A location server for identifying a location of the MDN to download the converted content under the control of the VMG device; Content server system characterized in that the configuration is included. Checking the time required for downloading the content of the test mobile terminal by the VMS device; Designating a shipment group configuration number and downloading the content converted into a playback standard for each type; If the load of the download server is greater than the threshold, the method of operating a content server system comprising the step of reducing the number of configuration of the sending group. A test process of inputting and recording content and MDN information by the VMG device, requesting the reception of content from a test portable terminal, and controlling a download server to download the converted content and checking the time required if there is a download request; Classifying the MDN information according to the type of mobile terminal and sequentially arranging a sending group by specifying a number for each group by the analyzed test time; Requesting the MDN of the sending group to receive the content, and if there is a download request, controlling the download server to download the content converted into the playback standard and monitoring the load; Reducing the number of MDNs constituting the sending group when the load of the monitoring download server is greater than a set threshold, and returning to the monitoring process by designating a next sending group after a delay time; Operation method of a content server system configured to include. The method of claim 17, wherein the test procedure, Inputting and recording contents to be transmitted by the VMG device and MDN information, respectively; Converting the contents into a reproduction standard of a test portable terminal and downloading the contents by a download server; Measuring a time at which the test portable terminal downloads the content; Method of operating a content server system, characterized in that consisting of. The method of claim 18, wherein the recording process, And inputting original content and a large amount of MDN information by the VMG device, recording the content information in the MMS server, and recording the MDN information in the VMG database area. The method of claim 18, wherein the downloading process, Requesting, by the VMG device, a test portable terminal to receive content; Receiving a content download request signal from the test portable terminal; Converting the contents into a playback standard of a test portable terminal; Controlling a download server to download the content converted by the VMG device to a test portable terminal; Downloading the content converted by the download server to a test portable terminal; Operation method of a content server system, characterized in that consisting of. The method of claim 17, wherein the alignment process, Analyze the input MDN information and classify by type of mobile terminal, and analyze the download time of the test mobile terminal, determine that the download server is the maximum number of sending group configuration under the normal load state, the classified MDN unit Method of operating a content server system, characterized in that consisting of a process of assigning to each of the shipping group arranged. The method of claim 17, wherein the monitoring process, Requesting, by the VMG device, to receive content from each MDN forming a dispatch group; Receiving a content download request signal from each of the MDNs; Converting the original of the content into a reproduction standard according to the type of portable terminal of the sending group; The VMG device controlling a download server to transmit the content converted into a reproduction standard to a download request MDN; Downloading the converted content to MDN by the download server; Monitoring the download server to determine whether the load is greater than a set threshold; Operation method of a content server system, characterized in that consisting of.

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