KR100686523B1 - Mobile communication device and method for supporting musicam radio dmb interactive service using x-pad - Google Patents

Abstract

A mobile communication terminal for supporting a radio DMB(Digital Multimedia Broadcasting) interactive service by using X-PAD(eXtended-Program Associated Data) and a method therefor are provided to support an interactive service for a corresponding URL(Uniform Resource Locator) with respect to the URL of a MUSICAM(Masking pattern adapted Universal Subband Integrated Coding And Multiplexing) radio DMB interactive service. An application unit(240) supports a MUSICAM radio DMB interactive service. A DMB agent(210) parses data of an X-PAD mode received through a DMB network, extracts parameters corresponding to a URL of the MUSICAM radio DMB interactive service, and outputs the extracted parameters. A DMB handler(220) processes corresponding radio DMB by using the parameters extracted in the DMB agent(210), calls corresponding application from the application unit(240), and processes the MUSICAM radio DMB interactive service with a DMB contents server. A mobile communication terminal transmits and receives data with the DMB contents server according to the MUSICAM radio DMB interactive service.

Description

MOBILE COMMUNICATION DEVICE AND METHOD FOR SUPPORTING MUSICAM RADIO DMB INTERACTIVE SERVICE USING X-PAD}

1 is a diagram illustrating a DMB broadcasting system according to an embodiment of the present invention.

2 is a block diagram illustrating a mobile communication terminal according to an embodiment of the present invention.

3 is a view for explaining the frame structure of the X-PAD according to an embodiment of the present invention.

4 is a flowchart illustrating an operation of a mobile communication terminal according to an embodiment of the present invention.

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

200: mobile communication terminal

210: DMB agent

220: DMB handler

230: application control

240: application

The present invention relates to a mobile communication terminal and a method for supporting a radio DMB (Digital Multimedia Broadcasting) bidirectional service, and more particularly to a MUSICAM (Masking pattern adapted Universal Subband Integrated Coding And Multiplexing) radio DMB bidirectional service It relates to a mobile communication terminal and a method for processing.

In modern society, mobile communication terminals are widely used as a necessity for modern people as a means of convenient communication without regard to place. Recently, as the performance of the processor is improved and the resources of the memory are increased, the mobile communication terminal provides various functions as well as the conventional mobile communication service.

One example is a DMB service using a DMB communication module. That is, the mobile communication terminal can receive a broadcast signal from the DMB station system through a satellite or the like and watch the DMB program using the output means provided in the mobile communication terminal. In particular, the recent DMB service provides a high-quality broadcasting service that allows users to enjoy various contents such as music, text, data, and video anytime, anywhere, even in a fast-moving car. Can watch.

In particular, recently, a technology that enables a user to use an interactive service related to a broadcast program while watching a broadcast program on a mobile communication terminal has been developed, and thus the use of the DMB service of the user is rapidly expanding. Conventional bidirectional services implement the bidirectional services by using the Binary Format for Scene (BIFS) of MPEG4 in DMB.

Radio DMB is defined in the European Telecommunications Standards Institute (ETSI) EN 300401 Radio Broadcasting System, Digital Audio Broadcasting (DAB) to mobile, portable and fixed receiver standards, and adopts the MUSICAM (Masking pattern adapted Universal Subband Integrated Coding and Multiplexing) transmission standard. However, since the MUSICAM is not an MPEG-4 series, there is a problem in that it cannot provide the bidirectional service using the BIFS because the BIFS cannot be used.

Accordingly, a new technology for providing a radio DMB bidirectional service according to MUSICAM standard X-PAD mode data received through a mobile communication terminal is proposed.

The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to enable the user of the mobile communication terminal to receive two-way service even in the radio DMB compliant with the MUSICAM standard, X-PAD It is to enable radio DMB interactive service.

Another object of the present invention is to provide a bidirectional service method for supporting a bidirectional service for a corresponding URL with respect to a URL of a MUSICAM radio DMB bidirectional service in a DMB bidirectional service.

The mobile communication terminal according to the present invention for achieving the object of the present invention as described above and to solve the problems of the prior art, the application unit for managing at least one application supporting the MUSICAM radio DMB bidirectional service; A DMB agent that parses data of an X-PAD mode received through a DMB broadcasting network and extracts and outputs parameters corresponding to a URL of a MUSICAM radio DMB bidirectional service; And a DMB handler for processing the corresponding radio DMB using the parameters extracted by the DMB agent, and calling the application from the application unit to process the MUSICAM radio DMB bidirectional service with the DMB content server.

According to another aspect of the present invention, there is provided a radio DMB bidirectional service method of a mobile communication terminal, comprising: receiving data in an X-PAD mode through a DMB broadcasting network; Parsing the received X-PAD mode data and extracting and outputting parameters corresponding to a URL of a MUSICAM radio DMB bidirectional service; And calling a schedule application using the extracted parameters to process the MUSICAM radio DMB bidirectional service with the DMB content server.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or limited to the embodiments. Like reference numerals in the drawings denote like elements.

In the present specification, the 'URL of the MUSICAM radio DMB' may define a related parameter in the X-PAD for the radio DMB according to the MUSICAM standard and transmit the URL in the form of data in the X-PAD mode that the mobile communication terminal can process. It is described as. The URL of the MUSICAM radio DMB is not limited to a URL of a specific standard and content, and may be interpreted to include all URLs related to digital audio broadcasting (DAB) content, and the technical spirit of the present invention is applied to all the URLs as it is. It will be apparent to those skilled in the art to which the present invention pertains.

1 is a diagram illustrating a DMB broadcasting system 100 according to an embodiment of the present invention. Referring to FIG. 1, the DMB broadcasting system 100 includes a DMB content server 110 and mobile communication terminals 120 to 140 connected to the DMB content server 110 through a DMB broadcasting network.

MUSICAM, mentioned above, is a digital band compression method of speech jointly developed by France (CCETT), Germany (IRT), and Netherlands (Philips). It is a standard for audio coding that uses MPEG-1 / 2 Layer2 as a compression algorithm. It means a subband coding method using. Unlike the radio signal of the video service, the MUSICAM mainly corresponds to the audio service of the FM or AM radio and is used in the terrestrial DMB. Although the compression efficiency is lower than that of the MPEG-4 series, the stability is recognized in the existing DAB system, and additional data broadcasting such as PAD (Program Associated Data) and DLS (Dynamic Laver Service) is possible.

In addition, the MUSICAM audio frame used in the MUSICAM is composed of a header, scale factor information, subband samples, and auxiliary data. The auxiliary data can be lengthened or shortened and is in a trade-off relationship with existing audio frames. In other words, as the capacity of the auxiliary data increases, the capacity of the audio data decreases and vice versa. A DLS service that delivers simple text information about an audio service using an auxiliary data channel, and a PAD service that can transmit visual information related to broadcast music are possible.

The WMB (Wireless Application Protocol) server may be used as the DMB content server 110 and may be configured to communicate with the mobile communication terminal 130 through a DMB broadcasting communication network including a base station. The swap server is a server that conforms to international standards that allow a communication terminal to communicate with the Internet or perform an application with another computer according to a wireless application communication protocol. The swap server may define an application program interface (API) to mount various applications in a gateway. . In addition, the present invention is not limited thereto, and a DMB content server 110 may use a web server that provides a web page with information related to the arrival point via a wired or wireless Internet as well as a swap server. In addition, the DMB content server 110 may be provided by a DMB broadcasting station or a separate DMB broadcasting service provider.

The mobile communication terminals 120 to 140 may selectively receive an interactive service associated with MUSICAM radio DMB content from the DMB content server 110 through a DMB broadcasting network and provide the same to a user. In addition, the DMB broadcasting network means a communication network connecting the mobile communication terminal and DMB broadcasting stations.

In addition, the mobile communication terminals 120 to 140 and 200 used in the present specification are PDC (Personal Digital Cellular) phones, PCS (Personal Communication Service) phones, PHS (Personal Handyphone System) phones, CDMA-2000 (1X, 3X) Phone, Wideband CDMA (WCDMA) Phone, Dual Band / Dual Mode Phone, Global Standard for Mobile (GSM) Phone, Mobile Broadband System (MBS) Phone, Smart Phone, Satellite And terrestrial digital multimedia broadcasting (DMB) phones, handheld devices that may include communications, such as mobile phones, public switched telephone network (PSTN) terminals, Voice over Internet Protocol (VoIP), Session Initiation Protocol (SIP), MGCP (Media Gateway Control Protocol), MEGACO (Media Gateway Control), Personal Digital Assistant (PDA), Hand-Held PC, Notebook Computer, Laptop Computer, WiBro Terminal, MP3 Player, MD Player, etc. Mobile handset and international roaming service A portable electric and electronic device, which means all kinds of handheld-based wireless communication devices including an International Mobile Telecommunication-2000 (IMT-2000) terminal and a Universal Mobile Telecommunication Service (UMTS) -based terminal that provide the same communication service. Communication with GPS chip to enable location tracking via CDMA, Code Division Multiplexing Access (CDMA) module, Bluetooth module, Infrared Data Association, Wired / Wireless LAN card, and Global Positioning System (GPS) It may be provided with a predetermined communication module such as an apparatus, and is interpreted as a concept of collectively a terminal capable of performing a certain arithmetic operation by mounting a microprocessor capable of performing a multimedia playback function.

2 is a block diagram illustrating a mobile communication terminal 200 according to the present exemplary embodiment of the present invention.

As shown in FIG. 2, the mobile communication terminal 200 according to the present exemplary embodiment of the present invention includes a DMB agent 210, a DMB handler 220, an application control unit 230, and an application unit 240. It includes.

The DMB agent 210 processes the data of the X-PAD mode received through the DMB broadcasting network, and the DMB handler 220 passes through the application control unit 230 according to the data output from the DMB agent 210. The MUSICAM radio DMB bidirectional service is processed according to various applications of the connected application unit 240. The DMB agent 210 and the DMB handler 220 may be installed in a predetermined DMB receiver in the mobile communication terminal 200.

Data of the X-PAD mode used in the present invention includes URLs of the MUSICAM radio DMB for providing the DMB bidirectional service, and parameters related to each of the URLs.

The X-PAD mode data may include parameters required for multiplexing and transmitting radio information of a MUSICAM standard, which is a basic radio service, in the form of Program Associated Data (PAD), which is one of data transmission methods. The PAD data may be used to transmit image data such as JPEG to the remaining area of the MUSICAM radio frame or provide a service such as slide show or lyrics display related to music. The data type used in the data of the X-PAD mode may use a data channel for transmitting additional information to the regular program, and the NPAD (Non-PAD) method, which is a service of a method that is transmitted independently of the radio of the MUSICAM standard. Are separated.

In particular, the data of the X-PAD mode is an eXtended PAD, and the data frame used here is a PAD transmitted at the end of the DAB audio frame located immediately before the cyclic redundancy check (CRC), which is a scale factor. It has an extended area. A data frame used in the data of the X-PAD mode is shown in FIG. 3.

3 is a view for explaining the frame structure of the X-PAD according to an embodiment of the present invention.

As shown in Figure 3, the structure of the data frame of the X-PAD type has an application list before the CRC and End Marker and can be formed of a plurality of applications from App.f to App.n. The CRC is a check method in a method for checking whether there is an error in data transmitted through a communication link. That is, the transmitting side that transmits the data applies a 16-bit or 32-bit polynomial to the block of data to be transmitted, and adds the resulting code to the block, and the receiving side that receives the data applies the same polynomial to the data to obtain the result. This method compares the result sent by the transmitting side. If the data blocks of the transmitting side and the receiving side match, the data has been successfully received, otherwise the transmitting side is requested to retransmit the data block. In addition, the end marker means that the frame is terminated.

The X-PAD type data frame according to an embodiment of the present invention is a frame of a user application type and an X-PAD application type according to a user defined area specified in a portion of the application list. This may be included. An application for processing a MUSICAM radio DMB URL for an interactive service is designated as a user application type in the user defined area. The X-PAD application type used in the data of the X-PAD mode defines a protocol for matching data transmission in the X-PAD mode according to the parameters defined in the user application type. That is, in order to transmit data in the X-PAD mode according to an embodiment of the present invention, a predetermined protocol is defined in the X-PAD application type in order to first set a user application type and then match it.

For example, an X-PAD application type can be additionally defined as 'TDMB URL'. In addition, various application types may be defined. For example, it may be defined as 'TDMB URL, start of X-PAD data group', 'TDMB URL, continuation of X-PAD data group', and the like. This means that the beginning of the X-PAD data group is continuous.

Next, applications to process the URL protocol defined above can be specified. For example, define a program to be connected to 'TDMB URL' in User Application Type. (Eg, Reserved for proprietary user applications area '10000000001: DMB agent') Thereafter, a URL to be linked with various applications can be defined. It can be specified as 'tdmb: // vendor_id / mms = 01000000000' as the designation to link with MMS. In addition, 'tdmb: // vendor_id / sms = 01000000000' for linking editable SMS, 'tdmb: // vendor_id / sms = 01000000000 & num' for linking SMS and 'tdmb: // vendor_id / call = 01000000000 ',' tdmb: // vendor_id / url = http: // xxxxx ', etc. can be specified in various ways to interwork with the wireless Internet.

The DMB agent 210 parses the data of the X-PAD mode received through the DMB broadcasting network, extracts and outputs parameters corresponding to the URL of the MUSICAM radio DMB bidirectional service.

In addition, the URL (Uniform Resource Locator) means a format that can consistently represent the address of the resource accessible from the Internet. The type of resource may vary depending on the Internet application protocol. For example, using HTTP, the World Wide Web Protocol, a resource can be an HTML page, an image file, a program such as a CGI or Java applet, or any other file that HTTP supports. The additional information URL link may include a name of a protocol required to access a resource, a domain name for identifying a specific computer on the Internet, and a path name hierarchically indicating a location of a computer file.

The DMB agent 210 parses the URL of the corresponding MUSICAM radio DMB to retrieve the application from the data of the X-PAD mode so that the DMB handler 220 and the application controller 230 can perform the bidirectional service. Call to pass various parameters. If the received data includes the URL of the MUSICAM radio DMB, the DMB agent 210 extracts and outputs parameters for the bidirectional service for the URL of the MUSICAM radio DMB from the data of the X-PAD mode. Parameters output from the DMB agent 210 are processed by the DMB handler 220 and according to various applications called by the application unit 240 through the application control unit 230, the DMB content and the mobile communication terminal 200. Data for the radio DMB bidirectional service may be exchanged between servers. The output means of the mobile communication terminal 200 may display the current state of the radio DMB bidirectional service. As the output means, image output means (LCD, organic LED, PDP, LED, etc.), audio output means (speakers, earphones, etc.), vibration output means (vibration motors, etc.) may be used.

In addition, although not shown in FIG. 2, an A / V CODEC, a BIFS decoder, and a MOT decoder together with the DMB agent 210 may be included in the present invention as needed.

That is, the A / V coding and decoding (CODEC) may support the DMB agent 210 to encode / decode the audio or video file (or program) in a transmission form in a certain manner. In addition, BIFS is a MPEG-4 technology that provides an interactive service that can interact with a user by utilizing graphic contents or various image data as a service for providing video data of DMB, and the BIFS decoder is composed of such technology. The data can be decoded.

In addition, the DMB agent 210 may further include a MOT decoder used to transmit radio DMB data of the MUSICAM standard by using parameters extracted from the data of the X-PAD mode. As is well known, the MOT decoder transports a multimedia object in a DAB system Eureka-147 according to parameters called from data of the X-PAD mode, ie, the X-PAD mode. It uses established transport protocols to provide functionality. File data that can be transmitted using the MOT decoder include MHEG, JAVA, JPEG, ASCII, MPEG, and audio files.

As a means for storing or reading DMB data in the DMB agent 210, a memory may be included as a file system and a storage space operated by predetermined system files. The memory may store and maintain contents for DMB. The content data stored in the memory has a file format that can be transmitted in the X-PAD mode by the MOT decoder.

The DMB handler 220 processes the corresponding radio DMB using the parameters extracted by the DMB agent 210 and calls the corresponding application from the application unit 240 through the application control unit 230 to execute the DMB content. Process the MUSICAM Radio DMB bidirectional service with the server. In addition, the DMB handler 220 may output data processed by the application unit 240 according to an application corresponding to data output from the DMB agent 210. In order to call the application, an application control unit 230 connected with the application and communicating with the application is used. In addition, the DMB handler 220 may transmit the called application to the output means of the mobile communication terminal.

The application control unit 230 is a WIPI (Wireless Internet Platform for Interoperability, 260) for controlling the connection to the corresponding bidirectional service corresponding to the URL of the MUSICAM radio DMB and the hardware of the WIPI 260 and the application unit 240 It may include a hardware abstraction layer (HAL) 270 that controls to be interconnected.

The WIPI 830 is a wireless Internet platform designed for common use developed by domestic mobile communication companies. The WIPI 830 refers to basic software for performing functions such as an operating system (OS) of a personal computer in a mobile communication terminal. In addition, the HAL 230 is a program layer that allows a computer operating system to interact with hardware services in a general or abstract layer, rather than a detailed hardware layer. For example, Microsoft Windows 2000 includes an HAL. . In addition, the HAL 230 may be called from a kernel or device driver of an operating system. In either case, the called program can interact with the hardware in a more general way than without.

The application unit 240 manages applications supporting the MUSICAM radio DMB bidirectional service. At least one application may be managed by the application unit 240. That is, in the bidirectional service for the URL of the MUSICAM radio DMB serviced by connecting various applications corresponding to data related to the URL of the MUSICAM radio DMB output from the DMB agent 210, the radio manages and transmits the corresponding content. Various methods may be provided to transmit and receive image data or text messages with a DMB content server of a DMB broadcasting station.

In addition, the MUSICAM radio DMB bidirectional service connected from the application unit 240 of the text message service, multimedia message service, call connection, WAP server connection and phone book service designated by the DMB content server At least one may be used.

The text message service may be a short message, a multimedia message, a long message, or an integrated message transmitted or received through a short message service (SMS), a multimedia message service (MMS), a long message service (LMS), or a unified message service (UMS). It can be either message. The call refers to an application that allows communication with other communication terminals through communication. In addition, the telephone number list provides a telephone book so that the user can find the telephone number of the communication terminal to communicate with. In addition, the swap server provides a service that allows a user to access a server that provides a swap page to search for desired information or to use various programs. In addition, as an interactive service, a MOT slideshow, a broadcasting website service, an XML-based EPG service, a voice-based electronic program guide service, etc. may be provided (not shown). The application can be reproduced on the user's mobile communication terminal (120 to 140).

4 is a flowchart illustrating an operation of the mobile communication terminal 200 according to an embodiment of the present invention.

First, the mobile communication terminal 200 receives the data of the X-PAD mode from the DMB broadcasting network (S410), and parses the received data (S420). As described in FIG. 3, the data of the X-PAD mode is transmitted according to an application such as URLs of MUSICAM radio DMB defined in a user-defined area of X-PAD and parameters related to each of the URLs.

Next, it is determined whether the URL of the MUSICAM radio DMB exists in the received data according to the parsing (S430). That is, the mobile communication terminal 200 parses the received data and, if there is a URL of the MUSICAM radio DMB, defines an interactive service from the data of the X-PAD mode to call an application for the URL of the corresponding MUSICAM radio DMB. The extracted parameters are extracted and transmitted to the application control unit 230 or the DMB handler 220 (S440).

Accordingly, the DMB handler 220 of the mobile communication terminal 200 through the application control unit 230 to the predetermined applications (eg, SMS, MMS service, WAP access service, etc.) of the application unit 240 By using the two-way service for the URL of the MUSICAM radio DMB by using (S450), it is possible to provide the user with an interactive service through a predetermined communication terminal, such as PCS, cellular phone, PDA.

So far, the method of supporting the MUSICAM radio DMB bidirectional service according to the present invention has been described, and the details mentioned in the embodiments of FIGS. 1 to 3 can be applied to the present embodiment as it is, and thus the following detailed description is omitted. Let's do it.

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

As described above, the present invention has been described by specific embodiments such as specific components and the like, but the embodiments and the drawings are provided only to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations are possible from such description.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and all the things that are equivalent to or equivalent to the scope of the claims as well as the claims to be described later belong to the scope of the present invention. will be.

As described above, in the mobile communication terminal providing the bidirectional service according to the present invention, since the bidirectional service can be supported for the MUSICAM radio DMB, the user can conveniently use the radio DMB bidirectional service while moving.

In addition, the user can easily use various interactive services such as text message service, multimedia message service, call connection, WAP server access and phone book service while using MUSICAM radio DMB.

Claims (9)

An application unit supporting a MUSICAM radio DMB bidirectional service; A DMB agent that parses data of an X-PAD mode received through a DMB broadcasting network and extracts and outputs parameters corresponding to a URL of a MUSICAM radio DMB bidirectional service; And A DMB handler that processes the corresponding radio DMB using the parameters extracted by the DMB agent and calls the application from the application unit to process the MUSICAM radio DMB bidirectional service with the DMB content server. Including, Exchanging data with the DMB content server according to the radio DMB interactive service Mobile communication terminal, characterized in that. The method of claim 1, The data of the X-PAD mode is generated according to the application of the MUSICAM radio DMB bidirectional service defined in the user area of X-PAD. Mobile communication terminal, characterized in that. The method of claim 1, And an application controller for connecting the DMB handler and the application unit by using WIPI and HAL. The method of claim 1, The MUSICAM radio DMB bidirectional service is at least one of a text message service, a call connection, a WAP server connection, and a phone book service designated by the DMB content server. The method of claim 1, The DMB content server is a swap server that provides DMB content as a WAP page through a DMB broadcasting network. Mobile communication terminal, characterized in that. The method of claim 1, The DMB content server is a web server that provides DMB content as a web page through a wired or wireless Internet. Mobile communication terminal, characterized in that. Receiving data in an X-PAD mode through a DMB broadcasting network; Parsing the received X-PAD mode data and extracting and outputting parameters corresponding to a URL of a MUSICAM radio DMB bidirectional service; And Invoking a schedule application using the extracted parameters to process the MUSICAM radio DMB bidirectional service with the DMB content server; Radio DMB bidirectional service method of a mobile communication terminal comprising a. The method of claim 7, wherein The data of the X-PAD mode is generated according to the application of the MUSICAM radio DMB bidirectional service defined in the user area of X-PAD. Radio DMB bidirectional service method of a mobile terminal, characterized in that. A computer-readable recording medium having recorded thereon a program for executing the method of claim 7.

Images