KR100771507B1 - Terminal and method for supplying sevices requring certification - Google Patents

Abstract

A terminal and method for providing services requiring certification are provided to offer a certification request service by communication between a mobile terminal and a certification server through a relay of a mobile communication terminal. A terminal for providing services requiring certification comprises the followings: a local area communication unit(211,221) for communicating with a mobile communication terminal; a certification requesting unit(212) for requesting certification information according to the T-DMB(Digital Multimedia Board) service to the mobile communication terminal; a certification confirming unit(213) for determining the effectiveness of the certification information; and T-DMB receiver(214) for receiving a T-DMB signal from a broadcasting system and outputting the received signal to a predetermined output device.

Description

Terminal and method for providing services requiring authentication {TERMINAL AND METHOD FOR SUPPLYING SEVICES REQURING CERTIFICATION}

1 is a diagram illustrating a network for providing a paid T-DMB service to a T-DMB dedicated terminal according to an embodiment of the present invention.

2 is a block diagram showing the internal configuration of a T-DMB dedicated terminal and a mobile communication terminal according to an embodiment of the present invention.

3 is a diagram illustrating an example of broadcast selection of a T-DMB dedicated terminal according to an embodiment of the present invention.

4 illustrates an example of an authentication information request of a T-DMB dedicated terminal according to an embodiment of the present invention.

5 is a diagram illustrating an example of service usage of a T-DMB dedicated terminal according to an embodiment of the present invention.

6 is a flowchart illustrating a method for providing a paid T-DMB service to a T-DMB dedicated terminal according to an embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

210: T-DMB dedicated terminal 211: first local area communication unit

212: authentication request unit 213: authentication confirmation unit

214: T-DMB receiver 215: output device

216: User Interface 217: Timer

220: mobile communication terminal 221: second short-range communication unit

222: authentication relay unit 223: authentication information transmission unit

The present invention relates to a terminal for providing a service requiring authentication, and more particularly, a terminal for providing a service requiring authentication such as a paid T-DMB service using a mobile communication terminal capable of communicating with an authentication server through a mobile communication network; It relates to a method of operation of the terminal.

In general, digital satellite broadcasting has rapidly spread to Europe, Japan, Asia, and Africa since the world's first DirecTV in 1994, and can be viewed anywhere in the world.

Digital satellite broadcasting is a method of compressing video / audio / additional data and transmitting it through satellites according to MPEG-2 standard, and it has wide coverage area which is characteristic of satellite compared to other transmission media, equal broadcasting quality regardless of region, It is activated by the economics of satellite broadcasting network construction and the simplicity of satellite channels, and is mainly led by pay broadcasting companies.

As digital multimedia services are expected to increase rapidly in the digital satellite broadcasting environment, copyright protection and management technologies for multimedia contents should be solved in order to effectively protect and manage the interests of the service providers and the rights of consumers. In order to solve this problem, a conditional access system (CAS) has recently emerged for establishing mutual security between a transmitter and a receiver in digital satellite broadcasting.

The reception restriction system includes a subscriber's terminal that scrambles a scrambled DMB signal in a broadcasting station system for a pay per channel (PPC) or pay per view (PPV) other than the free and basic channel of satellite broadcasting. It is a system that manages to receive service by descramble

The scramble is a function that combines the multimedia data to be transmitted with a predetermined rule so that the multimedia data can be decrypted only through a predetermined secret key, and scrambles the signal using a predetermined control word (CW). At this time, in order to use the multimedia data, the receiving terminal must descramble using a predetermined secret key to use the multimedia data.

In general, paid T-DMB services include a method of providing an unlimited number of services to a user who has charged a predetermined subscription fee, and a method of charging a corresponding fee to a corresponding user according to a time when a broadcast is received. To this end, the operator of the reception restriction system may issue a unique smart card to each subscriber to allow the corresponding billing to be made, but in a dedicated terminal equipped with only a T-DMB receiver in a laptop, a car, a PMP, etc., the TPEG ( There is a need for a technology for more easily charging and using multimedia data paid services such as a Transport Protocol Expert Group (Transport Protocol Expert) service.

The present invention has been made to solve the problems of the prior art as described above, an object of the present invention, if the authentication is successful by communicating with the authentication server through the relay of the mobile communication terminal, can provide the corresponding authentication request service Is to provide a terminal.

Another object of the present invention is to provide a mobile communication terminal which relays to provide a predetermined dedicated terminal with authentication information for providing a service requiring authentication in association with an authentication server.

Still another object of the present invention is to provide a method for enabling a service requiring authentication through authentication information received by receiving a relay of a mobile communication terminal.

In order to achieve the above object and to solve the above-mentioned problems of the prior art, according to the present invention, a terminal for providing a service requiring authentication is a short-range communication unit for communication with a mobile communication terminal, the mobile communication through the short-range communication unit An authentication requesting unit for requesting authentication information according to a service requiring authentication to a communication terminal; receiving authentication information received from a server by the mobile communication terminal according to the request through the local area communication unit, and validity of the authentication information; An authentication confirmation unit for determining a; and an RF receiver for outputting an RF signal for a service that requires the authentication to a predetermined output device, if the authentication information is valid according to the validity determination of the authentication information.

Dedicated terminal providing a T-DMB service according to an embodiment of the present invention, a short-range communication unit for communication with the mobile communication terminal; An authentication request unit which requests authentication information according to the T-DMB service to the mobile communication terminal through the local area communication unit; An authentication confirmation unit for receiving the authentication information received by the mobile communication terminal from a server according to the request through the local area communication unit, and determining the validity of the authentication information; And a T-DMB receiver for outputting a T-DMB signal to a predetermined output device when the authentication information is valid according to the validity determination of the authentication information.

The T-DMB receiver descrambles the received T-DMB signal using a secrec key included in the authentication information.

The dedicated terminal for providing the T-DMB service further includes a timer for counting a time, and the authentication confirming unit determines whether the current time displayed by the timer matches the valid period information included in the authentication information. The validity of the information can be determined. The timer may receive time information from the mobile communication terminal and update the current time. Alternatively, the timer may update the current time using time information included in the T-DMB signal.

When the T-DMB signal is received, the authentication confirmation unit may determine the validity of the authentication information according to whether time information from a predetermined broadcasting station system corresponds to valid period information included in the authentication information.

The short range communication unit may include at least one communication module among a USB communication module, a Bluetooth communication module, an RFID communication module, a Zigbee communication module, an ultra wideband (UWB) communication module, a WLAN communication module, and a UART communication module.

According to the present invention for achieving the above object, a mobile communication terminal for relaying authentication for a T-DMB service of a T-DMB dedicated terminal, the short-range communication unit for communicating with the T-DMB dedicated terminal; In response to a request for authentication information from the T-DMB dedicated terminal through the local area communication unit, request authentication information for the T-DMB dedicated terminal to an authentication server through a mobile communication network, and authentication corresponding to the request of the authentication information. An authentication relay unit for receiving information from the authentication server; And an authentication information transmission unit for transmitting the authentication information received from the authentication server to the T-DMB dedicated terminal through the local area communication unit.

According to the present invention, the request for authentication information from the T-DMB dedicated terminal includes an AT command, and the authentication relay unit requests the authentication information to the authentication server when the AT command is received, and the corresponding authentication server receives the corresponding information. And automatically launches a predetermined application for receiving authentication information.

According to an embodiment of the present invention, the authentication relay unit receives and installs the application from a predetermined server in the absence of the application automatically started by the AT command.

The authentication information transmitter may transmit current time information for determining the validity of the received authentication information from the T-DMB dedicated terminal to the T-DMB dedicated terminal.

According to the present invention for achieving the above object, a method of providing a T-DMB service in a T-DMB dedicated terminal, the method of providing a service requiring authentication, the method comprising: requesting authentication information from the terminal to the mobile communication terminal; Transmitting, by the mobile communication terminal, authentication information received from a predetermined server to the terminal using short-range communication, determining the validity of the authentication information at the terminal, and determining the validity of the authentication information. Accordingly, if the authentication information is valid, the method may include outputting an RF signal for a service requiring authentication to a predetermined output device.

Hereinafter, a paid T-DMB service will be described as an embodiment of a service requiring authentication with reference to the accompanying drawings and the contents described in the accompanying drawings, and the T-DMB dedicated terminal capable of only receiving data from a remote source is authenticated. The terminal and method according to the present invention will be described in detail by describing as an embodiment of a predetermined dedicated terminal providing this required service. Hereinafter, preferred embodiments of the present invention will be described in detail, but the present invention is not limited or limited by the embodiments.

1 is a diagram illustrating a network for providing a paid T-DMB service to a T-DMB dedicated terminal 110 according to the present invention. Referring to FIG. 1, the T-DMB dedicated terminal 110 includes a vehicle 111, a notebook 112, a portable multimedia player (PMP) 113, and the like.

The T-DMB dedicated terminal 110 according to an embodiment of the present invention, when a paid T-DMB data service such as TPEG service is requested from a user, the mobile communication terminal 120 through a predetermined wired / wireless local area communication module. Request authentication information. At this time, to perform the request for the authentication information, the T-DMB dedicated terminal 110 transmits an AT command, for example, a modem control command, to the mobile communication terminal 120. ), For example, the WIPI platform.

In the present invention, the mobile communication terminal 120 is a PSTN terminal, VoIP, SIP, Megaco, PDA (Personal Digital Assistant), cellular phone, PCS (Personal Communication Service) phone, hand-held PC (Hand-Held PC), CDMA- 2000 (1X, 3X) phones, Wideband CDMA (WCDMA) phones, Dual Band / Dual Mode phones, Global Standard for Mobile (GSM) phones, Mobile Broadband System (MBS) phones, and satellite / terrestrial DMB (Digital Multimedia Broadband Restriction System ting) phone and the like can be used, but the following will be described in detail the present invention using a cellular type mobile communication terminal.

The mobile communication terminal 120 includes a predetermined wired / wireless local area communication module to receive the authentication information from the T-DMB dedicated terminal 110. The mobile communication terminal 120 that has received the authentication information is connected to the authentication server 130 according to, for example, an auto-start function of the WIPI platform, and the T-DMB dedicated terminal is connected to the authentication server 130. Request authentication information for 110). In this case, the mobile communication terminal 120 uniquely identifies the T-DMB dedicated terminal 110, for example, the device identification information of the T-DMB dedicated terminal 110, the authentication server 130 Can be sent to. As a result, the authentication server 130 transmits predetermined authentication information for the user whose use of the paid T-DMB service is authenticated to the mobile communication terminal 120 through the mobile communication network according to a predetermined charging policy.

In general, the WIPI platform of the mobile communication terminal 120 automatically starts a corresponding application in response to a predetermined AT command. Based on this, the mobile communication terminal 120 according to the present invention requests and receives the authentication information from the T-DMB dedicated terminal 110 to the authentication server 130 only by receiving the AT command from the T-DMB. A series of relay processes for transmitting to the dedicated terminal 110 can be performed. In this case, when the mobile communication terminal 120 does not have a predetermined application for the relaying process, the mobile communication terminal 120 may automatically install the application by receiving the application from a predetermined server that provides the application when the AT command is received.

The authentication information includes a secret key required for descrambling the T-DMB or includes information on validity period during which the paid T-DMB can be used.

The mobile communication terminal 120 receiving the authentication information transmits the authentication information to the T-DMB dedicated terminal 110 through the wired / wireless local area communication. For the wired / wireless local area communication, the mobile communication terminal 120 and the T-DMB dedicated terminal 110 may include a USB communication module, a UART communication module, a Bluetooth communication module, an RFID communication module, a Zigbee communication module, and a UWB (Ultra). WideBand) and a WLAN communication module may be provided to perform communication for exchanging necessary data with each other.

The T-DMB dedicated terminal 110 receiving the authentication information may use a paid T-DMB data service such as a TPEG service based on the authentication information.

For example, when the authentication information is the secret key, the T-DMB dedicated terminal 110 descrambles the scrambled signal transmitted from the broadcasting station system 140 using the secret key, and outputs a predetermined output device. Display. As another example, when the authentication information is the valid period information, the T-DMB dedicated terminal 110 checks current time information and determines that the current time is included in the valid period information. The predetermined multimedia data according to the service is output to the output device. In another example, when the user of the T-DMB dedicated terminal 110 is authenticated through the authentication information, the T-DMB dedicated terminal 110 receives the paid T-DMB service from the broadcasting station system 140. And transmits the usage time of the paid T-DMB service to the mobile communication terminal 120 through the wired / wireless local area communication. Accordingly, the mobile communication terminal 120 transmits the use time and the unique identification information of the T-DMB dedicated terminal 110 to the authentication server 130, and the authentication server 130 is based on the use time. A predetermined fee may be set and a billing request is made to the user of the T-DMB dedicated terminal 110.

2 is a block diagram showing the internal configuration of the T-DMB dedicated terminal 210 and the mobile communication terminal 220 according to the present invention.

The T-DMB dedicated terminal 210 according to an embodiment of the present invention includes a first local area communication unit 211, an authentication request unit 212, an authentication check unit 213, a T-DMB receiver 214, and an output device. 215, and a user interface 216.

In addition, the mobile communication terminal 220 according to an embodiment of the present invention includes a second local area communication unit 221, an authentication relay unit 222, and an authentication information transmission unit 223.

First, the first local area communication unit 211 provides wired / wireless local area communication with the mobile communication terminal 220.

To this end, the first short-range communication unit 211 is not only a short-range wired communication module such as a USB communication module and a WLAN communication module, but also a Bluetooth communication module, an RFID communication module, a Zigbee communication module, and a UWB (Ultra WideBand) communication module. And a short range wireless communication module.

The authentication request unit 212 requests authentication information according to the T-DMB service to the mobile communication terminal 220 using the wired / wireless local area communication module. At this time, the authentication request unit 212 collects a command from the user through the user interface 216 including a keypad, a touch screen, a voice recognition module, and a hot key.

As described above, the second local area communication unit 221 includes a predetermined wired / wireless local area communication module and receives the request for the authentication information from the authentication request unit 212 through the first local area communication unit 211.

The authentication relay unit 222 of the mobile communication terminal 220 according to the request of the authentication information received from the second local area communication unit 221, the T-DMB dedicated terminal to the authentication server 130 through a mobile communication network The device identification information, etc. of 210 is transmitted to request authentication information, and authentication information corresponding to the request is received from the authentication server 130. Next, the authentication information transmission unit 223 transmits the authentication information received from the authentication server 130 to the first short-range communication unit 211 of the T-DMB dedicated terminal 210, the second short-range communication unit. Control 221.

The first local area communication unit 211 of the T-DMB dedicated terminal 210 receives the authentication information from the mobile communication terminal 220 and transmits the authentication information to the authentication confirmation unit 213. Thus, the authentication confirmation unit 213 determines the validity of the authentication information.

For example, when the authentication information is the valid period information, the authentication check unit 213 determines whether the current time corresponds to the valid period information. To this end, the T-DMB dedicated terminal 210 may further include a timer 217. The timer is a component that counts the current time. When the timer receives the authentication information from the mobile communication terminal 220, the timer may further receive predetermined time information to update the current time. In general, the mobile communication terminal 220 maintains relatively accurate current time information by receiving time information from a satellite or a base station. The current time of the timer 217 may be forcibly updated based on the accurate time information in the mobile communication terminal 220. Therefore, a user intentionally changes the current time of the timer 217, thereby illegally using the paid T-DMB service.

As another example, the timer 217 may be updated with the current time through time information included in the T-DMB signal from the broadcasting station system 140. In addition, since it has a semi-coercive nature similar to being updated by receiving time information from the mobile communication terminal 220, it is impossible to change the time due to impure intention of the user.

The T-DMB dedicated terminal 210 according to an embodiment of the present invention may not include the timer 217. Unlike the above-described example, in the case of the T-DMB dedicated terminal 210 that does not include the timer 217, the authentication confirming unit 213 collects only predetermined valid period information as authentication information, When receiving a T-DMB signal, it may be determined whether the current time included in the T-DMB signal corresponds to the valid period information, and whether to descramble the T-DMB signal may be determined.

The T-DMB receiver 214 may be universally interpreted as an RF receiver in a terminal that provides a predetermined service requiring authentication, and in the embodiment of FIG. 2, the paid T-DMB service is described as a service requiring authentication. Thus, it is described as a T-DMB receiver 241 which is an embodiment of the RF receiver.

The T-DMB receiver 214 processes the T-DMB signal, which is an RF signal, and outputs it to a predetermined output device 215 when the authentication information is valid according to the validity determination of the authentication information. The T-DMB receiver 214 includes a receiving device that receives a T-DMB signal from the broadcasting station system 140, and the output device 215 includes an image output device such as an LCD and an audio output device such as a speaker. It includes. That is, the T-DMB dedicated terminal 210 authenticated through the authentication confirmation unit 213 may normally use the paid T-DMB service through the T-DMB receiver 214 and the output device 215.

As described above, the T-DMB receiver 214 corresponds to a kind of RF receiver and provides other services requiring authentication according to the above validity determination, for example, data download service, location information service, and the like. An RF signal according to a corresponding protocol such as a mobile communication signal, a satellite signal, and the like may be processed in a predetermined RF receiver.

3 to 5 are diagrams showing an example of the operation of the T-DMB dedicated terminal 310 according to the present invention.

In the embodiment of Figure 3, the T-DMB dedicated terminal 310 is a portable multimedia player (PMP). A general PMP includes a predetermined receiver for receiving an S-DMB or T-DMB signal but does not include a predetermined communication module for connecting to the authentication server 130. Therefore, the general PMP receives the authentication information from the authentication server 130 through the mobile communication terminal 220 like the T-DMB dedicated terminal 310 and performs a legitimate authentication procedure. The T-DMB dedicated terminal 310 receives a T-DMB signal from a predetermined broadcasting station system 140 and displays a corresponding T-DMB broadcast list on the LCD. When the user selects a paid broadcast list other than the free broadcast list from the T-DMB broadcast list, the T-DMB dedicated terminal 310 is located within a predetermined distance through a wired / wireless local area communication as shown in FIG. 4. The authentication information is requested to 220 and the standby state is maintained for a predetermined period of time. Accordingly, the mobile communication terminal 220 receives the authentication information from the authentication server 140 and provides the authentication information to the T-DMB dedicated terminal 310 through the short range communication. When the received authentication information is valid, the T-DMB dedicated terminal 310 receives the T-DMB signal from the broadcasting station system 140 and outputs it through an output device such as a speaker and an LCD.

As shown in FIG. 5, if the authentication information is predetermined valid period information, the T-DMB dedicated terminal 310 refers to the current time and the valid period information, and the remaining time available for viewing in the future is the LCD or the speaker. Can be output via

6 is a flowchart illustrating a method for providing a paid T-DMB service to a T-DMB dedicated terminal 210 according to the present invention.

First, in step 601, the T-DMB dedicated terminal 210 receives and inputs a paid T-DMB service from a list of predetermined T-DMB services. Accordingly, in step 602, the T-DMB dedicated terminal 210 requests the mobile communication terminal 220 for authentication information according to the use of the paid T-DMB service. To request the authentication information, the T-DMB dedicated terminal 210 and the mobile communication terminal 220 maintain a predetermined wired / wireless local area communication module and communicate with each other through a corresponding local area communication method.

In step 603, the mobile communication terminal 220 dedicates the T-DMB to the authentication server 130 through a predetermined mobile communication network according to a request for authentication information from the T-DMB dedicated terminal 210 through the local area communication. The device identification information of the terminal 220 is transmitted to request authentication information. Next, in step 604, the mobile communication terminal 220 receives the authentication information corresponding to the request from the authentication server 220, and transmits to the T-DMB dedicated terminal 220.

Upon receiving the authentication information, the T-DMB dedicated terminal 220 determines whether the authentication information is valid in step 605. For example, when the validity information is included in the authentication information, the authentication server 130 provides the authentication information according to the request of the mobile communication terminal 220 and the T-DMB dedicated terminal 220. May determine whether authentication is performed by determining whether the valid period information corresponds to the current time.

If the authentication information is not valid, the T-DMB dedicated terminal 220 does not react to the T-DMB signal from the broadcasting station system 130 and maintains the system standby state. In addition, if the authentication information is valid, the T-DMB dedicated terminal 220 receives the T-DMB signal from the broadcasting station system 130 in step 607 and outputs it through a predetermined output device.

If the authentication information is an authenticated secret key, the T-DMB dedicated terminal 220 descrambles the T-DMB signal from the broadcasting station system 130 using the authentication information and displays it as an output device. .

In the present invention as described above has been described by the specific embodiments, such as a specific configuration module and limited embodiments and drawings, but this is provided to help a more general understanding of the present invention, 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. That is, the above-described T-DMB dedicated terminal as an example, but similar devices and methods can be applied to all of the terminals providing a multimedia service that requires authentication, to all the specific terminals that do not attempt to authenticate directly with the remote source. It can be easily modified and modified by those skilled in the art.

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 claims as well as the following claims will belong to the scope of the present invention. .

The dedicated terminal according to the present invention may provide a service requiring authentication by communicating with an authentication server through a relay of a mobile communication terminal.

According to the present invention, it is possible to provide a mobile communication terminal which relays to provide a predetermined dedicated terminal with authentication information for providing a service requiring authentication in association with an authentication server.

According to the present invention, it is possible to provide a method for enabling a service requiring authentication through authentication information received by receiving a relay of a mobile communication terminal.

Claims (15)

In a dedicated terminal providing a T-DMB service, A short range communication unit for communicating with a mobile communication terminal; An authentication request unit which requests authentication information according to the T-DMB service to the mobile communication terminal through the local area communication unit; An authentication confirmation unit for receiving the authentication information received by the mobile communication terminal from a server according to the request through the local area communication unit, and determining the validity of the authentication information; And A T-DMB receiver for receiving the T-DMB signal from a broadcasting station system and outputting the T-DMB signal to a predetermined output device if the authentication information is valid according to the validity determination of the authentication information The authentication confirmation unit, And determining the validity of the authentication information according to whether the current time displayed by the timer for counting time matches the valid period information included in the authentication information. The method of claim 1, The T-DMB receiver, And descrambles the received T-DMB signal using a secret key included in the authentication information. The method of claim 1, The timer, And receiving the time information from the mobile communication terminal and updating the current time. The method of claim 1, The timer, T-DMB dedicated terminal, characterized in that for updating the current time using the time information included in the T-DMB signal. The method of claim 1, The authentication confirmation unit, And upon reception of the T-DMB signal, determine the validity of the authentication information according to whether time information from the broadcasting station system matches the valid period information included in the authentication information. The method of claim 1, The short-range communication unit, T-DMB dedicated terminal comprising at least one communication module of the USB communication module, UART communication module, Bluetooth communication module, RFID communication module, Zigbee communication module, Ultra WideBand (UWB) communication module, and WLAN communication module . A mobile communication terminal relaying authentication for providing a T-DMB service of a T-DMB dedicated terminal, A short range communication unit performing communication with the T-DMB dedicated terminal; In response to a request for authentication information from the T-DMB dedicated terminal through the local area communication unit, request authentication information for the T-DMB dedicated terminal to an authentication server through a mobile communication network, and authentication corresponding to the request of the authentication information. An authentication relay unit for receiving information from the authentication server; And (1) transmitting the authentication information received from the authentication server to the T-DMB dedicated terminal through the local area communication unit, and (2) a current time for determining the validity of the received authentication information in the T-DMB dedicated terminal. Authentication information transmission unit for transmitting information to the T-DMB dedicated terminal Mobile communication terminal comprising a. The method of claim 7, wherein The request for authentication information from the T-DMB dedicated terminal includes an AT command, The authentication relay unit, And requesting authentication information from the authentication server upon receiving the AT command, and automatically starting a predetermined application for receiving the authentication information from the authentication server. The method of claim 8, The authentication relay unit, And receiving and installing the application from a predetermined server in the absence of the application automatically started by the AT command. Maintaining a short range communication unit for communicating with a mobile communication terminal; Requesting authentication information according to the T-DMB service to the mobile communication terminal through the local area communication unit; Receiving, by the mobile communication terminal, authentication information received from a server according to the request through the local area communication unit, and determining validity of the authentication information; And And receiving the T-DMB signal from a broadcasting station system and outputting the T-DMB signal to a predetermined output device when the authentication information is valid according to the validity determination of the authentication information. The step of determining the validity of the authentication information, Determining the validity of the authentication information according to whether the current time displayed by the timer for counting time matches the valid period information included in the authentication information; Method for providing a T-DMB service in a T-DMB dedicated terminal comprising a. The method of claim 10, Receiving the T-DMB signal and outputting to the predetermined output device, Descrambling the received T-DMB signal using a secret key included in the authentication information Method for providing a T-DMB service in a T-DMB dedicated terminal comprising a. The method of claim 10, The step of determining the validity of the authentication information, Upon receipt of the T-DMB signal, determining the validity of the authentication information according to whether the time information from the broadcasting station system matches the valid period information included in the authentication information; Method for providing a T-DMB service in a T-DMB dedicated terminal, characterized in that it further comprises. Maintaining a short range communication unit performing communication with a T-DMB dedicated terminal; In response to a request for authentication information from the T-DMB dedicated terminal through the local area communication unit, request authentication information for the T-DMB dedicated terminal to an authentication server through a mobile communication network, and authentication corresponding to the request of the authentication information. Receiving information from the authentication server; Transmitting the authentication information received from the authentication server to the T-DMB dedicated terminal through the local area communication unit; And Transmitting, by the T-DMB dedicated terminal, current time information for determining the validity of the received authentication information to the T-DMB dedicated terminal. Method for relaying authentication for providing a T-DMB service in a mobile communication terminal comprising a. The method of claim 13, The request for authentication information from the T-DMB dedicated terminal includes an AT command, The step of receiving authentication information from the authentication server, Requesting authentication information from the authentication server upon receiving the AT command, and automatically starting a predetermined application for receiving the authentication information from the authentication server Method for relaying authentication for providing a T-DMB service in a mobile communication terminal comprising a. The method of claim 13, The step of receiving authentication information from the authentication server, Receiving and installing the application from a predetermined server in the absence of the application automatically started by the AT command; The method for relaying authentication for providing a T-DMB service in a mobile communication terminal further comprising.

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