KR20080026018A - Digital video broadcasting system and terminal for providing the file information in file downloading service and method thereof - Google Patents

Abstract

A digital video broadcasting system and a terminal for providing file information in a file downloading service and a method thereof are provided to supply the file information within a grouped file through an ESG(Electronic Service Guide) when plural files are provided after being grouped into one file. If a file set grouping at least one file of files for providing a file downloading service is included, a broadcasting service providing server(110) includes information about files grouped in the file set in a schedule event fragment of an ESG(Electronic Service Guide). After that, the broadcasting service providing server transmits the ESG including the information about the files. A digital video broadcasting terminal(120) receives the ESG. If there is an input for requesting downloadable file information, the terminal confirms the schedule event fragment of the ESG. If information about the file set is included, the terminal confirms information about the files grouped in the file set and displays the confirmation result on a screen.

Description

DIGITAL VIDEO BROADCASTING SYSTEM AND TERMINAL FOR PROVIDING THE FILE INFORMATION IN FILE DOWNLOADING SERVICE AND METHOD THEREOF}

1 is a configuration diagram of a digital video broadcasting system to which an embodiment of the present invention is applied;

2 is a block diagram of a digital video broadcasting terminal according to an embodiment of the present invention;

3 is a flowchart illustrating a process for providing file information in a file download service in a digital video broadcasting terminal according to an embodiment of the present invention;

4 is an exemplary diagram illustrating an example of an ESG for a general ESG file download service.

5 is a diagram illustrating syntax of a general ESG schedule event fragment;

6A and 6B illustrate syntax of an ESG schedule event fragment including file list information of a file set including a plurality of sub files according to the first embodiment of the present invention;

7A and 7B illustrate an example of ESG using syntax of the ESG schedule event fragment of FIGS. 6A and 6B according to the first embodiment of the present invention.

8A and 8B illustrate syntax of an ESG schedule event fragment including file list information of a file set including a plurality of sub files according to a second embodiment of the present invention;

FIG. 9 is an exemplary diagram showing an example of ESG using syntax of the ESG schedule event fragment of FIGS. 8A and 8B according to the second embodiment of the present invention. FIG.

10A and 10B illustrate syntax of an ESG content fragment including file list information of a file set including a plurality of sub files according to a third embodiment of the present invention;

11 is an exemplary diagram showing an example of ESG using syntax of the ESG content fragment of FIG. 11 according to the third embodiment of the present invention;

FIG. 12 illustrates an example of a screen displaying information on files consisting of one file and information on sub-files included in the file set, according to embodiments of the present disclosure.

The present invention relates to a digital video broadcasting system, a terminal, and a method for providing file information downloadable using an electronic service guide (ESG) in a file download service.

In general, digital broadcasting is to digitally transmit a broadcast signal that has been transmitted in an analog manner in order to provide a user with high quality, high sound quality, and more various services. Such digital broadcasting may be of various types such as digital video broadcasting (DVB), digital audio broadcasting (DAB), digital multimedia broadcasting (DMB), and mediafloo. DVB stands for European Digital Broadcasting Standard, which is divided into various forms according to its characteristics. DVB-Terrestrial (DVB-Terrestrial) is a standard for terrestrial digital broadcasting, DVB-Satellite (DVB-S) is a standard for satellite digital broadcasting, and DVB-H (Digital Video Broadcasting- Handheld) is a portable mobile digital broadcasting system. Is the standard for that.

Among them, DVB-H is a technology standard established to provide terrestrial digital broadcasting with high reception rate to mobile terminals. It is a digital mobile multimedia broadcasting that can provide high quality and high quality broadcasting or contents anytime, anywhere while driving or walking. Can be implemented.

Unlike other digital broadcasting methods, the DVB-H method transmits most important information necessary for a broadcast service in ESG data. Currently, DVB-H uses the File Delivery over Unidirectional Transport (FLUTE) protocol as the Content Delivery Protocol (CDP). This flute protocol is a protocol capable of transmitting files such as text, audio, video, and image. In the early stages of DVB-H, the flute protocol is now being used to download the files needed for ESG configuration and ESG updates.

In DVB-H, video and audio broadcasting services are provided as basic broadcasting services. In addition, DVB-H also defines broadcast data services. In other words, service types provided using the DVB-H standard can be classified into three types of video, audio, and data services. At this time, information on each service is delivered using ESG information. The terminal receiving the DVB-H broadcast may analyze the ESG information transmitted through the broadcast signal to determine the type of service and related information transmitted through the corresponding broadcast signal. ESG information is composed of XML data, and the format of ESG XML information is defined in the standard using XML Schema.

 DVB-H broadcast information is delivered as ESG fragment information. ESG fragments are divided into several types according to the information they convey. The ESG data defined in the DVB-H service includes seven fragments, a service bundle fragment, a service fragment, a purchase channel fragment, a service channel fragment, a service fragment, and a schedule event fragment. A ScheduleEvent fragment, a Content fragment, and an Acquisition fragment. In addition, the terminal can collect these fragments to find the overall DVB-H broadcast information.

Meanwhile, among the broadcast services of DVB-H, a broadcast data service is a service for downloading a specific data file transmitted as a broadcast signal. The file download service refers to a service that receives file data necessary for services such as HTML pages, AV files, and ring tones through the flute protocol in addition to the streaming service. In order to obtain file data used for a specific time, the corresponding fluctuation session is opened using the Session Description Protocol (SDP) information in the ESG data and the corresponding file data is transmitted. In addition, the ESG delivers information for a file download service using a service fragment, a schedule event fragment, a content fragment, and an acquisition fragment in an ESG. .

4 is an exemplary diagram of an ESG for DVB-H file download service. The URI information of each transmitted file is delivered to the schedule event fragment. In the example diagram of FIG. 4, three ring tone MP3 files, that is, a download service for ring tone 1, ring tone 2, and ring tone 100 are provided. It can be seen that. Also, it can be seen that URI information of each MP3 file is delivered to a ContentLocation Element of a schedule event fragment. In addition, it can be seen that information necessary to provide a download service for three MP3 files is delivered to a content fragment, a service fragment, a schedule event fragment, and an acquisition fragment. 5 is a syntax of a general ESG schedule event fragment. Referring to FIG. 5, a ContentLocation element of a schedule event fragment is an element having information of a type of anyURI and may indicate URI information of one file to be serviced.

As described above, in the case of providing file information on a download service using an ESG in the current DVB-H system, as shown in FIG. 4, it is possible to provide information on a download service of one file unit. However, when a file download service is bundled with several files at once, there is no way to provide information about each of the bundled files. For this reason, when a file download service is bundled with several files at once, the user may not know the file information of the bundle that he / she wants to receive.

For example, suppose a service provider wants to bundle 10 Ring Tone MP3 files into one file and offer them to the user for a fee. Before receiving, you will first want to see the information of the 10 ring tone MP3 files, the file list. However, using the current DVB-H CBMS ESG standard, if a terminal is provided with multiple files bundled into a single file, there is no way to know the contents of the bundled files so that the user can provide sufficient information. There is no problem.

Accordingly, the present invention provides a digital video broadcasting system, a terminal, and a method for providing file information in a bundled file through an ESG when a plurality of files are bundled into one file.

According to an aspect of the present invention, in the digital video broadcasting system for providing file information in a file download service using broadcast information, a file set grouping at least one file among files providing a file download service is provided. Is included in the schedule event fragment of the electronic service guide (ESG), a broadcast service providing server for transmitting the information of the files bound to the file set and transmitting the received, and the ESG, and downloads If there is an input requesting possible file information, the digital video broadcasting terminal checks the schedule event fragment of the ESG, and if the information on the file set is included, checks the information of the files bundled in the file set and displays it on the screen. It is characterized by including.

The present invention also provides a digital video broadcasting system for providing file information in a file download service using broadcast information, wherein information of a file set that bundles at least one file among files providing a file download service When included, the broadcast service providing server transmits information fragments included in the file set in a content fragment in an electronic service guide (ESG), and receives the ESG and requests downloadable file information. And a digital video broadcasting terminal that checks a content fragment of the ESG and checks the information of the files bundled in the file set if the information fragment is included. It is characterized by.

The present invention also provides a method for providing file information in a file download service using broadcast information in a digital video broadcasting system including a broadcast service providing server for providing a broadcast service and a digital video broadcasting terminal. When information on a file set that bundles at least one file among files providing a file download service is included, information about files bundled in the file set is included in a schedule event fragment of an electronic service guide (ESG). And a second process of checking whether there is an input requesting the downloadable file information by the digital video broadcasting terminal and receiving the ESG, and the digital video broadcasting terminal requesting the file information. If there is an input, the schedule event program of the ESG A third step of checking whether the information of the file set is included by checking the segment; and if the information of the file set is included, the digital video broadcasting terminal checks the information of the files bundled in the file set and displays the information on the screen. And a fourth process of displaying.

The present invention also provides a method for providing file information in a file download service using broadcast information in a digital video broadcasting system including a broadcast service providing server for providing a broadcast service and a digital video broadcasting terminal. When information on a file set that bundles at least one file among files that provide a file download service is included in the content fragment of the electronic service guide (ESG), A first step of including and transmitting information, a second step of checking whether there is an input for the digital video broadcasting terminal to receive the ESG, and requesting downloadable file information; and the file information of the digital video broadcasting terminal. If there is an input requesting the content fragment of the ESG And a third step of checking whether the file set information is included, and if the file set information is included, the digital video broadcasting terminal checks the information of the files bundled in the file set and displays it on the screen. It is characterized by including the four steps.

In addition, the present invention provides a digital video broadcasting terminal for providing file information in a file download service using broadcast information, comprising receiving an Electronic Service Guide (ESG) in a transport stream of a digital broadcast broadcast from a broadcast service providing server. At least one of a digital event receiver, a memory for storing the received ESG, a display for displaying input data, and an input for requesting downloadable file information, the schedule event fragment of the ESG is checked. And a control unit which checks whether the information of the file set that bundles the file is included and checks the information of the files bundled in the file set and displays the information through the display unit if the file set information is included. do.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

According to an embodiment of the present invention, when a terminal receives an ESG schedule event fragment or a content fragment including information indicating that a file is a file set and a file list information corresponding to the file set, the terminal receives information about the file set. We would like to propose a way to provide the user with information about each of the bundled files.

First, a configuration diagram of a digital video broadcasting system to which an embodiment of the present invention is applied will be described with reference to FIG. 1.

The digital video broadcasting system includes a broadcast service provision server 110 for generating a transport stream (TS) for the content provided by the content provider 100 and broadcasting it, and a broadcast service provision server 110. A broadcast network 113 for broadcasting a transport stream broadcasted from) to the terminal 120, and a terminal 120 for receiving the broadcast transport stream and using it to perform a digital broadcast service. In addition, the broadcast service providing server 110 includes a broadcast service application unit 111 and a broadcast service management unit 112, and the broadcast service application unit 111 transmits audio / video streams and file data to the terminal 120. In addition, the broadcast service manager 1120 transmits the ESG data to the terminal 120.

In the present invention, when a file download service is provided, the broadcast service providing server 110 transmits a file set to a file set and information indicating the transmission of the file set. The ESG including the ESG schedule event fragment or content fragment including the corresponding file list information is transmitted to the terminal 120.

In addition, if the terminal 120 receives the information indicating the transmission of the file set included in the schedule event fragment or the content fragment, the terminal 120 checks the file list information corresponding to the file set and provides the confirmed file list information to the user. Make it available.

The present invention proposes three embodiments in which the broadcast service providing server 110 includes information on a file set in an ESG. The first embodiment provides a method for providing information on a file set using a content location element of a schedule event fragment. The second embodiment provides content representing information of a single file rather than a file set. A method of providing an archive location element (ArchiveLocation element) indicating the information of the location element and the file set, respectively, and the third embodiment defines an archive location element (ArchiveLocation element) of the second embodiment in the content fragment That's how.

First, a method for providing information about a file set according to the first embodiment of the present invention will be described.

According to the first embodiment of the present invention, when a plurality of files are to be transmitted as a file set (file set) grouped into one file, the schedule event fragment syntax transmitted from the broadcast service providing server 110 is illustrated in FIGS. 6A and 6B. It can be shown as follows. 6A and 6B, the ESG schedule event fragment according to the first embodiment of the present invention not only includes URI information of a download file by using a content location element, but also downloads several files. In the case of a file set enclosing a file, information about the file constituting the file set is also included.

The file received by the terminal is included in the encoding type by including information on the encoding method used to bind the file to the content URI type included in the content location element of the ESG schedule event fragment proposed in the first embodiment. Allows you to determine whether work is a bundled file set. Here, the algorithm for grouping several files into one file is illustrated as using the tar algorithm in the example of FIG. 6, but may include other algorithms. Also, by default encodingType is set to "none", when sending only one file, the encoding type attribute may be omitted and used.

That is, as shown in 610, the schedule event fragment according to the first embodiment of the present invention includes information on an encoding method used when enclosing a file in a content URI type element as an encoding type, and includes a content list. A file list information corresponding to a file set is included in a content list type element.

Next, an example of an ESG using syntax of an ESG schedule event fragment as shown in FIGS. 6A and 6B will be described with reference to FIGS. 7A and 7B.

7A and 7B are examples of an ESG for providing information on a file set by using a content location element of the schedule event fragment of FIGS. 6A and 6B proposed in the first embodiment of the present invention. It is assumed and described that the ESG includes information on one ring tone set, which is a file set, and ring tone 2, which is a single file, and ring tone 100, for transmission. In addition, it is assumed that a service provider wants to deliver three MP3 files (ringTone 1, ringTone 2, ringTone 3) into one file, Ring Tone Set.

Then, the content fragment includes information indicating that a ring tone set, which is a file set that combines three MP3 files, such as 700, and a ring tone 2 and a ring tone 100, which consist of one file such as 702 and 704, are provided.

In addition, the schedule event fragment includes information on the above three files. In particular, the content URI encoding type and the content list of the file set corresponding to 700 among the above files are included as shown in 710. In this case, 706 represents content URI encoding type information of a file set corresponding to 700, and 707 through 709 include information about "ringTone 1, ringTone 2, ringTone 3", which are information of respective files included in the file set.

In the terminal 120 receiving the ESG as shown in FIG. 7, the file corresponding to the ring tone set among the files received by checking the encoding type of the content URI is a file in which several files are bundled and transmitted in a tar method. It can be confirmed. The terminal 120 may also check in advance before downloading any file in the file set by using the content list information corresponding to the ring tone set.

Next, a method for providing information about a file set according to a second embodiment of the present invention will be described.

According to the second embodiment of the present invention, when a plurality of files are to be transmitted in a file set that is bundled into one file, the schedule event fragment syntax transmitted from the broadcast service providing server 110 is illustrated in FIGS. 8A and 8B. It can be shown as follows. Here, the difference between the second embodiment of the present invention and the first embodiment is that the second embodiment uses elements representing information of one file and a file set, respectively.

Referring to FIG. 8A, a content location element is used for a single file that does not have a file set, such as 810, and an archive location, such as 820, when a file set is included. Define and use the element (ArchiveLocation element). The content location element and the archive location element may be used one by one in the case of a single file or a file set. Also, if the file information to be provided is a file set, the content is preferentially provided. The basic information is informed by the location element and the detailed information of the corresponding file set is informed by the archive location element. The definition thereof can be set by an appointment between each service provider and the terminal.

At this time, the archive location element has the same content location type information as in the first embodiment. That is, although not illustrated in FIGS. 8A and 8B, information about an encoding method used to bundle a file to a Content URI Type element of the first embodiment using “esg: ContentLocationRefType” as the archive location element type information is shown. May be included as an encodingType and file list information corresponding to a file set may be included in a content list type element.

8B illustrates a change of a content UIR type element for the second embodiment. That is, in the first embodiment, a value indicating a case in which the encoding type is “none” is included in order to express the case of not a file set as shown in FIG. 6B. However, in the second embodiment, as shown in FIG. 8A, since a single file is used instead of a file set to indicate that a single file is included using the content location element, the “none” in the content UIR type element of FIG. 8B. You do not need to include the case.

Next, an example of the ESG using the syntax of the ESG schedule event fragment of FIGS. 8A and 8B will be described with reference to FIG. 9.

FIG. 9 is an example of an ESG for file download service using the schedule event fragment of FIG. 8 proposed in the second embodiment of the present invention. It is assumed and described that the ESG includes information on one ring tone set, ring tone 2, and ring tone 100. In addition, it is assumed that a service provider wants to deliver three MP3 files (ringTone 1, ringTone 2, ringTone 3) into one file, Ring Tone Set.

Then, the content fragment includes information indicating that a ring tone set, which is a file set that combines three MP3 files, such as 910, and a ring tone 2 and a ring tone 100, which consist of one file, such as 920 and 930, are provided.

In addition, the schedule event fragment includes information on the above three files. In particular, it is preferable to use an archive location element such as a content URI encoding type and a content list of a file set corresponding to 910 among the above files. Different from the first embodiment. That is, in the case of a file set, the archive location element is used, otherwise the content location element is used. In this case, 930 indicates content URI encoding type information of a file set corresponding to 910, and 940, 950, and 960 indicate information about "ringTone 1, ringTone 2, and ringTone 3", which are information of respective files included in the file set. It includes.

Finally, a method for providing information on a file set according to a second embodiment of the present invention will be described.

According to the third embodiment of the present invention, when a plurality of files are to be transmitted in a file set that is bundled into one file, the schedule event fragment and the content fragment syntax transmitted from the broadcast service providing server 110 are illustrated in FIG. It may be shown as 8a and 8b. Here, the third embodiment differs from the second embodiment in that the archive location element proposed in the second embodiment is included in the content fragment, not the schedule event fragment. That is, in the third embodiment, the schedule event fragment does not grasp the file set information of the content according to each schedule, but provides the information of the corresponding file set in the content fragment indicating the information of the file set. By reference, you can see that the archive location element is included in the content fragment. In addition, the schedule event fragment uses the “AnyURI” type as shown in 1010 of FIG. 10A to use the corresponding content location element to represent a single file.

Next, an example of the ESG using the syntax of the content fragments of FIGS. 10A and 10B will be described with reference to FIG. 11.

11 is an example of an ESG content fragment according to the third embodiment. Referring to FIG. 11, it is assumed that an ESG according to the third embodiment includes information on one ring tone set, ring tone 2, and ring tone 100, and transmits the same. In the content fragment, the content location of the three files is also provided by the service provider to bundle three MP3 files (ringTone 1, ringTone 2, and ringTone 3) into one file, Ring Tone Set, and deliver them to the user. Assume that

Then, information indicating that the content fragment is provided with a ring tone set, which is a file set that combines three MP3 files, is included.

In addition, the content fragment includes information on the three files. The content URI encoding type and the content list of the file set are included in the archive location element as shown in 1150. In this case, 1110 indicates content URI encoding type information of the file set, and 1120, 1130, and 1140 indicate information about "ringTone 1, ringTone 2, and ringTone 3", that is, information on each file included in the file set.

Then, the internal structure of the terminal 120 according to the present invention will be described with reference to FIG. The terminal 120 according to the present invention is a digital video broadcasting terminal.

2 is a block diagram of a digital video broadcasting terminal according to an embodiment of the present invention. The illustrated terminal 120 includes a digital broadcast receiver 202, a memory 204, a controller 200, a key input unit 210, a display unit 206, and an audio processor 208.

When the broadcast channel of a predetermined broadcast station is selected by the control of the control unit 200, the digital broadcast receiver 202 may perform digital broadcast data of a selected channel among at least one broadcast channel-specific digital broadcast data serviced in a frequency band used by the broadcast station. Receives and demodulates the demodulated digital broadcast frame to the controller 200. If the digital broadcasting system according to an embodiment of the present invention is a DVB-H broadcasting system, the digital broadcasting receiver 110 demodulates an orthogonal frequency division multiplex (OFDM) signal received from a broadcasting station for broadcasting DVB-H broadcasting data. The DVB-H OFDM demodulator may output a digital broadcast data of a channel selected by a user. In addition, the digital broadcast receiver 110 receives an ESG data stream in a transport stream of a digital broadcast broadcast from a digital broadcast apparatus. In addition, the terminal 120 may include an RF transmitter including an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal.

The memory 204 stores data necessary for the control of the controller 200, and in particular, stores information for a file download service included in the ESG data received from the broadcast service providing server 110.

The controller 200 controls the overall operation of the digital video broadcasting terminal, and decodes the digital broadcast stream output from the digital broadcasting receiver 202 to display the video signal through a video signal processor (not shown) and an audio signal processor (not shown). 206 and the audio processing unit 208 output. In particular, in the present invention, the control unit 200 includes information indicating that the broadcast service providing server 110 transmits a file set included in the ESG schedule event fragment or content fragment generated according to the three embodiments of the present invention. If so, the control checks the file list information corresponding to the file set and provides the confirmed file list information to the user. Then, the broadcast service providing server 110 checks the information on the file set provided through the ESG schedule event fragment or content fragment, and the operation of the specific control unit 200 for providing the same to the user will be described with reference to FIG. 3. See for details.

The key input unit 210 receives a user manipulation signal such as a key input and transmits the same to the controller 200.

The display unit 206 outputs various display data generated by the digital video broadcasting terminal 120, and is preferably composed of a liquid crystal display (LCD) or the like capable of sufficiently supporting the resolution of the broadcasting data. In this case, when the LCD is implemented using a touch screen method, the display unit 206 may operate as an input unit.

The audio processor 208 modulates the electrical signal input from the microphone and converts the electrical signal into voice data. The audio processor 208 demodulates the encoded voice data input from the digital broadcast receiver 202 into an electrical signal and outputs it to the speaker. do. In addition, the audio processor 208 may include a data codec for processing packet data and an audio codec for processing an audio signal such as voice, and may be included in the controller 200.

Next, an operation for providing file information to a user during a file download service in the digital video broadcasting terminal 120 configured as shown in FIG. 2 will be described with reference to FIGS. 3 and 7A to 12.

First, when the terminal 120 receives ESG data through the digital broadcast receiver 202 in step 300, the controller 200 stores the ESG data in the memory 204.

Thereafter, the controller 200 checks whether there is a request to view the file information downloadable from the user in step 302, and if there is a request to view the file information, proceeds to step 306; otherwise, proceeds to step 304 to perform the function. To perform.

In step 302, the controller 200 analyzes the schedule event fragment or the content fragment in the ESG data stored in the memory 204 in step 306. In this case, the controller 200 analyzes the schedule event fragment or the content fragment according to each of the three embodiments according to the present invention, and analyzes the schedule fragment according to the first embodiment or the second embodiment, and the third embodiment. Analyze content fragments accordingly. In operation 308, the controller 200 determines whether a file set is included among the downloadable files in the ESG data in operation 306 as a result of the analysis of the schedule event fragment or the content fragment. Herein, the operation of analyzing the schedule event fragment and the content fragment in the ESG data analyzes the content fragment after analyzing the schedule event fragment when analyzing the general ESG data, but in step 306 of FIG. To check the schedule event fragment or content fragment is to analyze.

Here, if the ESG generated according to the first embodiment is received, the controller 200 checks the content URI encoding type element including the encoding information as shown in 710 of FIG. 7 to recognize that the corresponding file is composed of a file set. do. However, if the file set of the downloadable files is not included and each file is composed of one file, the process proceeds to step 314 and displays the information of each file on the screen using a general file information display method.

In addition, if the ESG generated according to the second embodiment is received, the controller 200 checks the file set list included in the archive location element of the schedule event fragment as shown in 970 of FIG. Recognize.

In addition, if the ESG generated according to the third embodiment is received, the controller 200 checks the file set list included in the archive location element of the content fragment as shown in 1150 of FIG. 11 to indicate that the corresponding file is configured as a file set. Be aware.

In step 308 to 310, the control unit 200 displays the information of each file on the screen using a general file information display method for a file composed of each one of the downloadable files, and for the file set In step 310, the information on the subfiles included in the file set is checked. In operation 310, the controller 200 checks information on sub-files included in the file set by using content list element information corresponding to the file set. In this case, when the ESG generated according to the first embodiment is received, the subfiles are “ringTone 1, ringTone 2, and ringTone 3” by checking 707, 708, and 709 included in the content list of FIG. 7A. In addition, if the ESG generated according to the second embodiment is received, the sub-files are “ringTone 1, ringTone 2, and ringTone 3” by checking 940, 950, and 960 included in the content list of FIG. In addition, if the ESG generated according to the third embodiment is received, the sub-files are “ringTone 1, ringTone 2, and ringTone 3” by checking 1120, 1130, and 1140 included in the content list of FIG.

Thereafter, the controller 312 displays the information of the files consisting of one file and the information of the sub files included in the file set checked in step 310 through the display unit 206. In this case, the screen of the terminal 120 displaying file information may be illustrated in FIG. 12. That is, general file information is displayed for files "2. Ring Tone 2" and "3. Ring Tone 100" consisting of one file, and Ring Tone Set is included for file set "1. Ring Tone Set". You can display "listTone 1. mp3, ringTone 2. mp3, ringTone 3. mp3" as a popup window. As shown in FIG. 12, sub-file list information for the file set "1. Ring Tone Set" may be simultaneously displayed in a pop-up window 1200, and a key click or a cursor drag input by a user in the "1. Ring Tone Set" item is performed. If there is a pop-up window, you can display sub file list information for the file set.

As described above, when the file download service using broadcast information is used, the present invention is effective in file transfer efficiency compared to transmitting in one file unit by allowing several files to be bundled and transmitted. In addition, from a service provider's point of view, in providing a file download service to a user, it is efficient not only to provide a service in a file unit but also to provide several files in one file to the user. Therefore, in the file download service, the function of grouping multiple files into one file set is very useful. In addition, the present invention has an advantage that the user can check the information of the files included in the file set in advance by providing the information of the files included in the file set to the ESG information when services are bundled into one file set.

Claims (31)

A digital video broadcasting system for providing file information in a file download service using broadcast information, When a file set including at least one file among files providing a file download service is included, information of files bundled in the file set in a schedule event fragment of an electronic service guide (ESG) Broadcast service providing server for transmitting and including; If there is an input for receiving the ESG and requesting downloadable file information, the schedule event fragment of the ESG is checked, and if the information on the file set is included, the information on the files bound to the file set is checked and displayed on the screen. A digital video broadcasting system for providing file information in a file download service comprising a digital video broadcasting terminal for displaying. According to claim 1, The broadcast service providing server, When a file set is included among files providing a file download service, a content URI type includes information on an encoding method used to bundle files included in the file set in a content location element of the schedule event fragment. A (Content URI Type) element and at least one of a Content list Type element that includes file list information corresponding to the file set. Video broadcasting system. The method of claim 2, wherein the broadcast service providing server, When a single file transmitted in one file unit among files providing a file download service is included, an encoding type value included in the Content URI Type element is a value indicating that a single file is included. A digital video broadcasting system for providing file information in a file download service, characterized in that the setting. The digital video broadcasting terminal of claim 2, And determining whether the information on the file set is included by checking the encoding scheme information included in the content location element. The method of claim 4, wherein the digital video broadcasting terminal, If it is determined that the information about the file set is included in the ESG, the file list information of each of the files included in the information of the file set is checked through the content list type element. Digital video broadcasting system for providing file information in a file download service. The method of claim 1, wherein the broadcast service providing server If a single file is included among the files providing the file download service, the information of the single file is included in the ContentLocation element of the schedule event fragment, and the file set is included among the files providing the file download service. A Content URI Type element including information on an encoding method used to bundle files included in the file set in an ArchiveLocation element of the schedule event fragment, and corresponds to the file set. A digital video broadcasting system for providing file information in a file download service, comprising at least one of a content list type element including file list information. The method of claim 6, wherein the digital video broadcasting terminal, And determining whether or not the information of the file set is included in the received ESG by identifying the ArchiveLocation element. The method of claim 7, wherein the digital video broadcasting terminal, If it is determined that the information of the file set is included, the file download service, characterized in that the file list information of each of the files included in the information of the file set through the content list type (Content list Type) element Digital video broadcasting system for providing file information in the. A digital video broadcasting system for providing file information in a file download service using broadcast information, When information on a file set that bundles at least one file among files that provide a file download service is included in the content fragment of the electronic service guide (ESG), A broadcast service providing server including and transmitting information; If there is an input for receiving the ESG and requesting downloadable file information, the contents fragment of the ESG is checked, and if the information on the file set is included, the information of the files bundled in the file set is checked. Digital video broadcasting system for providing file information in the file download service, characterized in that it comprises a digital video broadcasting terminal to display on the screen. The method of claim 9, wherein the broadcast service providing server, When the file set is included among the files providing a file download service, a content URI type including information on an encoding method used to bind the file of the file set to an ArchiveLocation element of the content fragment. URI type) and a content list type element including file list information corresponding to the file set. system. The method of claim 10, wherein the digital video broadcasting terminal, And determining whether or not file information is included in a file to be received by checking an archive location element of the content fragment. The method of claim 11, wherein the digital video broadcasting terminal, If it is determined that the file set information is included in the received file, the file list information of each of the files included in the information of the file set is checked through the content list type element. A digital video broadcasting system for providing file information in a file download service. A method of providing file information in a file download service using broadcast information in a digital video broadcasting system including a broadcast service providing server providing a broadcast service and a digital video broadcasting terminal, When the broadcast service providing server includes information on a file set in which at least one file of files providing a file download service is included, the broadcast service providing server binds the file set to a schedule event fragment of an electronic service guide (ESG). A first process of including and transmitting information of the lost files; A second step of checking whether the digital video broadcasting terminal receives the ESG and whether there is an input for requesting downloadable file information; A third step of checking whether a file set information is included by checking the schedule event fragment of the ESG when the digital video broadcasting terminal has an input requesting the file information; And providing information on the file download service, wherein the digital video broadcasting terminal checks the information of the files bundled in the file set and displays the information on the screen if the file set information is included. Way. The method of claim 13, wherein the first process comprises: The file included in the file set in a content location element of the schedule event fragment when the broadcast service providing server includes information on a file set that bundles at least one file among files for providing a file download service. Including at least one of a Content URI Type element containing information about the encoding scheme used when grouping them together and a Content list Type element including file list information corresponding to the file set. Generating the electronic service guide (ESG); And transmitting, by the broadcasting service providing server, the generated ESG. The method of claim 14, wherein in the generating step, A value indicating that a single file is included in the encoding type value included in the content URI type when the broadcast service providing server includes a single file composed of one file unit among the files provided by the broadcast service providing server. Method for providing file information in the file download service, characterized in that set to. The method of claim 14, wherein the third process comprises: Wherein the digital video broadcasting terminal checks whether the information on the file set is included by checking the encoding method information included in the content location element of the schedule event fragment of the received ESG. Method for providing file information. The method of claim 13, wherein the first process comprises: When the broadcasting service providing server includes the file set information among the files providing the file download service, the broadcast service providing server includes single file information in a content location element of the schedule event fragment, and archive location element (ArchiveLocation element). A Content URI Type element containing information about an encoding scheme used when grouping files of the file set, and a content list type including file list information corresponding to the file set. Generating the electronic service guide (ESG) including at least one of the elements; And transmitting, by the broadcasting service providing server, the generated ESG. The method of claim 17, wherein the third process is The digital video broadcasting terminal is a process of checking whether a file set is included among files for providing a file download service by checking the archive location element, thereby providing file information in a file download service. How to. The method of claim 16 or 18, wherein the fourth process, Checking file list information of each of the files included in the file set through the content list type element when it is determined that the file set is included; And displaying the file list information of the identified file set in correspondence with the file set on the screen. A method of providing file information in a file download service using broadcast information in a digital video broadcasting system including a broadcast service providing server providing a broadcast service and a digital video broadcasting terminal, The file is included in a content fragment of an electronic service guide (ESG) when the broadcast service providing server includes information on a file set in which at least one file among files providing a file download service is included. A first process of including and transmitting information of files bound to the set; A second step of checking whether the digital video broadcasting terminal receives the ESG and whether there is an input for requesting downloadable file information; A third step of checking whether the information on the file set is included by checking the content fragment of the ESG when the digital video broadcasting terminal has an input requesting the file information; And providing information on the file download service, wherein the digital video broadcasting terminal checks the information of the files bundled in the file set and displays the information on the screen if the file set information is included. Way. The method of claim 20, wherein the first process, Information on an encoding method used when the broadcast service providing server bundles the file of the file set with an archive location element of the content fragment when the file set includes information of the file set among files providing a file download service; The electronic service guide (ESG) is generated by including at least one of a Content URI Type element including a Content URI Type element and a Content list Type element including file list information corresponding to the file set. To do that, And transmitting, by the broadcasting service providing server, the generated ESG. The method of claim 20, wherein the third step is The digital video broadcasting terminal is a process of checking whether a file set is included among files providing a file download service by checking an archive location element of the content fragment. Method for Providing. The method of claim 20, wherein the fourth process is, If it is determined that the file set is included, the file list information of each of the files included in the information of the file set is displayed on a confirmation screen through the content list type element. A method for providing file information in a file download service. A digital video broadcasting terminal for providing file information in a file download service using broadcast information, A digital broadcast receiver for receiving an electronic service guide (ESG) in a transport stream of a digital broadcast broadcast from a broadcast service providing server; A memory for storing the received ESG; A display unit for displaying input data; If there is an input requesting downloadable file information, the schedule event fragment of the ESG is checked to check whether the information on the file set that bundles at least one file is included and the information on the file set is included. And a control unit that checks information of files bundled in the file set and displays the information on the display unit, if any. 25. The method of claim 24, wherein a ContentLocation element of the schedule event fragment includes: a Content URI Type element including information on an encoding method used to bundle files included in the file set; And at least one of a content list type element including file list information corresponding to a file set. The method of claim 25, wherein the control unit, The digital video broadcasting terminal for providing file information in a file download service, characterized in that whether the information of the file set is included by checking the encoding scheme information included in the content location element. The method of claim 26, wherein the control unit, If it is determined that the file set information is included in the received file, the file list information of each of the files included in the information of the file set is checked through the content list type element. And the digital video broadcasting terminal for providing file information in a file download service. The method of claim 24, The ContentLocation element of the schedule event fragment includes information of a single file, and the ArchiveLocation element includes a content URI including information on an encoding method used to bundle the files in the file set. And at least one of a Content URI Type element and a Content list Type element including file list information corresponding to the file set. The digital video broadcasting terminal. The method of claim 28, wherein the control unit, The digital video broadcasting terminal for providing file information in a file download service, characterized in that it is checked whether or not the information of the file set is included in the received file by checking the ArchiveLocation element. The method of claim 29, wherein the control unit, If it is determined that the file set information is included in the received file, the file list information of each of the files included in the information of the file set is checked through the content list type element. And the digital video broadcasting terminal for providing file information in a file download service. The method of claim 27 or 30, wherein the control unit, If the file set information is included, the file list information of each of the files included in the file set information is checked through the content list type element, and the file list information of the checked file set is checked. And displaying file information corresponding to the file set on the screen.

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