KR101042356B1 - Apparatus and Method for Providing of Searching Service about Contents by Using Unstructured Supplementary Service Data Message and Mobile Station Therefor - Google Patents

Abstract

The present invention relates to an apparatus, a method for providing a content retrieval service using an unstructured supplementary service data message, and a mobile communication terminal therefor.

The present invention provides a message processing unit for extracting a content search word from a content search request message of an unstructured supplementary service data (USSD) message type received from a mobile communication terminal; A search unit that searches for content that matches the content search word; Search for content that matches the content search word using the search unit, and search for content that matches the content search word (hereinafter, referred to as 'content search information'). It includes a control unit for inserting and transmitting to the mobile communication terminal.

According to the present invention, a mobile communication terminal requests a search for a content to be provided using an unstructured supplementary service data message and provides search information through an unstructured supplementary service data message, thereby providing a mobile terminal for receiving information on the content. There is an effect of reducing the charging burden on the user of the communication terminal.

Unstructured Supplementary Service Data Message, Content, Search, Query

Description

Apparatus and Method for Providing of Searching Service about Contents by Using Unstructured Supplementary Service Data Message and Mobile Station Therefor}

The present invention relates to an apparatus, a method for providing a content search service, and a mobile communication terminal therefor. More specifically, the present invention relates to an apparatus for providing a content search service, a method for providing a content search service, and a mobile communication terminal for the mobile communication terminal providing search information for content that matches a content search word received from the mobile communication terminal.

Recently, with the development of network technology, various informations of the world can be shared through a huge connection network called the Internet. As a result, sites that provide various services through the Internet are increasing. These services can be provided by accessing the Internet.

In general, the types of services provided through the Internet include information transmission services, search services, information services, and interactive services. Among these services, information services provide hypertext information in a window format. Application services are mainly used. In an information service, a text string is linked to a separate text, file, image, video, audio, etc., and the user clicks on each text string to display the corresponding text, file, or image that provides more detailed information. And so on. Information such as various texts, images, moving pictures, and audio provided through the Internet is generally referred to as "content".

In general, in order for a user of a mobile communication terminal to receive content such as music, a game, a video, etc., the user accesses a content providing system using a mobile communication terminal, inputs a search word related to the content that the user of the mobile communication terminal wants to receive, and then Check the content matching the search word from the providing system. Subsequently, the user of the mobile communication terminal that has checked the content that matches the search word receives the content he / she wants by selecting the content that he / she wants to receive and downloading the selected content from the content providing server that provides the corresponding content.

With this method, the user is charged with the use of the data service in the process of searching for the content to be provided by the user of the mobile communication terminal, and the user is charged with the use of the data service in the process of accessing the content providing system. As a result, a problem arises in that a burden on charging is added to the user of the mobile communication terminal.

An object of the present invention is to provide an apparatus, a method for providing a content search service, and a mobile communication terminal for reducing the burden of charges imposed on a user of a mobile communication terminal receiving a content search service.

In order to achieve the above technical problem, the present invention provides a message processing unit for extracting a content search word from a content search request message of an unstructured supplementary service data (USSD) message type received from a mobile communication terminal; A search unit for searching for a content that matches the content search word; And searching for content that matches the content search word using the search unit, and searching for content that matches the content search word (hereinafter, referred to as 'content search information') in a non-structured additional service data message type content search. A control unit for inserting a result message and transmitting the result message to the mobile communication terminal, wherein the control unit determines whether a content search word is included in the content search request message received from the mobile communication terminal, and the content search request message; When it is determined that the content search word is not included in the content search word, a content search word input request message of an unstructured value-added data service type message requesting input of a content search word is transmitted to the mobile communication terminal to include a content search word from the mobile communication terminal. Content search Receiving a request message.

In addition, the present invention comprises the steps of a) determining whether a content search word is included in a content search request message of an unstructured supplementary service data message type received from a mobile communication terminal; b) if it is determined in step a) that the content search word is included, searching for content that matches the content search word; c) including the search result searched for the content search word in step b) in a content search result message of an unstructured supplementary service data message method and transmitting it to the mobile communication terminal; And d) if it is determined in step a) that the content search word is not included, the content search word input request is transmitted to the mobile communication terminal using a content search word input request message of an unstructured supplementary service data message method to include the content search word. Receiving the received content search request message.

In addition, the present invention provides a mobile communication terminal provided with a content search service from a content search service providing server, comprising an unstructured supplementary service data message method including a content search word and a content search request service code input by a user of the mobile communication terminal. A message processing unit for generating a content search request message and extracting search information for content that matches the content search word from a content search result message received from the content search service providing server in response to the content search request message; And when the content search word and the content search request service code are input from a user of the mobile communication terminal, generate the content search request message through the message processing unit, and transmit the generated content search request message to the content search service providing server. And a controller configured to extract and display the search information through the message processor when the content search result message is received from the user, wherein the controller determines whether a content search word is input together with a content search request service code from a user, If it is determined that only a content search request service code is input without a content search word input from the user, a content search request message including only the input content search request service code is generated to generate the content search service. Transmitted to the providing server, and is corresponding to the content search request message and wherein receiving the query content input request message for requesting the content keywords that are sent from the content search service providing server.

In addition, the present invention comprises the steps of a) determining whether a content search term is inputted when there is a content search request service code input; b) if there is a content search word input in step a), generating a content search request message of an unstructured supplementary service data message method including the content search request service code and the content search word and transmitting the generated content search request message to a content search service providing server; ; c) receiving a content search result message including search information from the content search service providing server, wherein the search information is information about content corresponding to the content search word searched by the content search service providing server; Extracting and displaying the search information from a content search result message; And d) if there is no content search word input in step a), generates a content search request message including only the content search request service code, and transmits the generated content search request message to the content search service providing server, corresponding to the content search request message. And receiving a content search word input request message for requesting a content search word input from a search service providing server.

According to the present invention, a mobile communication terminal requests a search for a content to be provided using an unstructured supplementary service data message and provides search information through an unstructured supplementary service data message, thereby providing a mobile terminal for receiving information on the content. There is an effect of reducing the charging burden on the user of the communication terminal.

In addition, by using an unstructured supplementary service data message having a faster transmission / reception rate than a conventional short message or a multimedia message, there is an effect that a user of a mobile communication terminal can be provided with content information to be provided quickly.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

In addition, when a part is said to "include" a certain component, this means that it may further include other components, except to exclude other components unless otherwise stated.

In the embodiment of the present invention, for convenience of description, it is assumed that a user of the mobile communication terminal requests a search for music content among various contents and receives search information for music content. Here, in the embodiment of the present invention, a description will be made on the assumption that music content corresponding to the search word 'winter' is searched for convenience of description.

In addition, the embodiment of the present invention is described as being limited to the search for music contents, but the present invention is not limited thereto, and integrated search for various contents such as games and movies other than music is also possible.

1 is a view schematically showing the configuration of a system for providing a content search service according to an embodiment of the present invention.

Referring to FIG. 1, a content search service providing system according to an exemplary embodiment of the present invention includes a mobile communication terminal 110, a mobile communication network 130, a content search service providing server 150, and a content information database 160. .

The mobile communication terminal 110 receives a content search word for specific music content input by a user of the mobile communication terminal 110, generates a content search request message including the received content search word, and then through the mobile communication network 130. It is a terminal for transmitting to the content search service providing server 150. Here, the content search word is a word related to music content to be provided by the user of the mobile communication terminal 110, such as a music title, music lyrics, composer name, and record label name. Here, the mobile communication terminal 110 provides a content retrieval service providing server 150 through the mobile communication network 130 to retrieve a content retrieval request message based on unstructured supplementary service data (hereinafter, referred to as USSD). To send. At this time, the mobile communication terminal 110 receives a service code (SVCCODE) composed of special characters and numbers such as '*' and '#' from the user of the mobile communication terminal 110 and the content corresponding to the service code. The connection request command is transmitted to the search service providing server 150.

2 is a view showing a service code table for a content search service according to an embodiment of the present invention.

2, a service code according to an embodiment of the present invention is a service code used for transmitting and receiving a USSD message between a mobile communication terminal 110 and a content search service providing server 150. Used in combination with special characters such as'.

For example, when a user of a mobile communication terminal 110 requesting a search service for a specific content is inputted as * 251 * 'winter' and requests a content search service by pressing a call button, the content search service is requested. The content search service providing server 150 uses a combination of content search results by using special characters, service codes, and content search information, such as * 252 * 'Winter Story', 'When Winter Comes', 'Winter Rain' ... The USSD message type content search result message is transmitted to the mobile communication terminal 110.

In addition, the mobile communication terminal 110 according to an embodiment of the present invention receives the content search result message including the search information matching the content search word from the content search service providing server 150 and displays it on the screen. Here, the mobile communication terminal 110 arranges and displays the search information in a list format so that the user of the mobile communication terminal 110 can easily recognize it.

Detailed configurations, functions, and service codes of the mobile communication terminal 110 will be described below with reference to the accompanying drawings.

For simplicity, the USSD is briefly described.

USSD is unstructured supplementary service data, which is a means for transmitting data or a specific command such as a short message service (SMS). In general, short messages can be up to 80 characters long, while USSD can transmit data up to 160 characters long. In addition, the USSD uses a circuit signaling channel, which is inexpensive because data charges are not charged on a packet basis as in the wireless Internet. In addition, while the short message is a method of storing and sending a text to the home location register 137, while the USSD transmits and receives data without a storage operation, the data transmission speed is up to 5 times faster than the short message. Here, the USSD is a 3GPP standard, and a standard is defined in TS 24.008 and TS 29.002.

The mobile communication network 130 is a network providing a mobile communication service to the mobile communication terminal 110, and processes data transmitted and received between the mobile communication terminal 110 and the content search service providing server 150.

The mobile communication network 130 according to the embodiment of the present invention includes a wireless base station 131, a base station controller 133, a mobile communication switching center 135, and a home location register (HLR).

The wireless base station 131 is a device connected to the calling terminal 110 in a wireless section to control the calling terminal 110 and to connect a data channel. The wireless base station 131 according to an embodiment of the present invention is a mobile communication terminal ( The content search request message of the 110 is transmitted to the base station controller 133, and the content search result message received through the base station controller 133 is transmitted to the mobile communication terminal 110.

The base station controller 133 cooperates with the mobile communication switching station 135 while managing the wireless base station 123. Here, the base station controller 133 transmits the content search request message of the mobile communication terminal 110 received from the wireless base station 131 to the mobile communication switching station 135, and from the content search service providing server 150 to the mobile communication switching station. The content search result message received through the unit 135 is transmitted to the mobile communication terminal 110.

The mobile communication switching center 135 is a core network element of a mobile communication network, controls a call and various additional services, establishes a call call, and provides a connection function with various other devices and an external network.

Here, the mobile communication switching center 135 transmits a content retrieval request message received from the base station controller 133 to the home location register (HLR) 137.

In addition, the mobile communication switching center 135 relays a message related to the content search service of the USSD message type transmitted and received between the content search service providing server 150 and the mobile communication terminal 110.

The home location register 137 analyzes the service code included in the content search request message when the content search request message of the mobile communication terminal 310 is received through the mobile communication switching center 135. Here, the home location register 137 analyzes the service code included in the content search request message, and if the service code is determined to be a code for requesting the content search, the home location register 137 establishes a connection between the content search service providing server 150 and the mobile communication terminal 110. To control. As a result, a channel for a content search service is formed between the mobile communication terminal 110 and the content search service providing server 150 through the mobile communication network 130.

The content search service providing server 150 is a device for providing a content search service at the request of the mobile communication terminal 110. When the content search request message of the mobile communication terminal 110 is received through the mobile communication network 150, the content is searched for. The service code included in the search request message is checked and a content search service corresponding to the service code is provided to the mobile communication terminal 110.

Detailed configuration and functions of the content search service providing server 150 will be described below with reference to the accompanying drawings.

The content information database 160 is a database that stores information on various contents such as music and games. The content information database 160 provides the content search service providing server 150 with information about corresponding content that matches the content search word. Here, the information about the content includes the overall information about the content such as the name, capacity, address, etc. of the content.

In the exemplary embodiment of the present invention, the content information database 160 is assumed to be a separate device from the content search service providing server 150, but the content information database 160 is connected to the content search service providing server 150. It is also possible to be included.

3 is a diagram illustrating a schematic configuration of a mobile communication terminal provided with a content search service according to an exemplary embodiment of the present invention.

Referring to FIG. 3, the mobile communication terminal 110 according to the embodiment of the present invention includes a wireless processing unit 111, a key input unit 113, a display unit 115, a USSD message processing unit 117, a storage unit 118, And a controller 119.

The wireless processor 111 converts a signal received from an antenna into an intermediate frequency signal and outputs the signal, and converts a signal to be transmitted from an intermediate frequency signal into a radio signal and outputs the signal through the antenna. Here, the wireless processor 111 transmits and receives a message related to a content search service transmitted and received between the mobile communication terminal 110 and the content search service providing server 150.

The key input unit 113 includes a plurality of numeric / character keys and function keys for executing various functions, and controls the electrical signal of key data corresponding to the key input by the user of the mobile communication terminal 110. ) Here, the key input unit 113 receives a content search term for content search and a content search request service code from a user of the mobile communication terminal 110.

In addition, the key input unit 113 receives a selection command for content to be provided by the user of the mobile communication terminal 110 from the user of the mobile communication terminal 110 confirming the content search result message.

The display unit 115 may be configured as a display device such as a liquid crystal display (LCD) and a light emitting diode (LED), and a menu screen for a user of the mobile communication terminal 110 to use a content search service. To provide. Here, the display unit 115 displays the contents of the content search result message received from the content search service providing server 150, and according to a key additionally input by the user of the mobile communication terminal 150 that checks the content search result message. Display the screen.

The USSD message processor 117 generates a content search request message of a USSD message type including a content search word and a content search request service code input from the key input unit 113 through the controller 119.

In addition, when the USSD message processing unit 117 receives the content search result message through the wireless processing unit 111, the content search result providing service code which is a service code indicating that the content search information corresponding to the content search word is transmitted in the content search result message. Extract the content search information.

4 illustrates a format of a USSD message according to an embodiment of the present invention.

Referring to FIG. 4, the USSD message processing unit 220 inserts a content search word and a content search request service code into a USSD-String parameter of a USSD message, and has a format such as * 251 * "winter" (ACSII notation). Inserts a special character, a content search request service code, and a content search term into the USSD-String parameter.

The storage unit 118 stores a program for the operation of the controller 119 and a message related to a content search service.

The controller 119 controls the overall operation of the mobile communication terminal 110. When the content search word and the content search request service code are input through the key input unit 113, the content search word and the content through the USSD message processor 117. A content search request message including a search request service code is generated and transmitted to the mobile communication terminal 110 through the wireless processor 111.

In addition, when the content search result message is received through the wireless processor 111, the controller 119 extracts the content search information included in the content search result message through the USSD message processor 117 and retrieves the search information through the display 115. Is displayed.

In addition, when a selection command for specific content is input through the key input unit 113 from the user of the mobile communication terminal 110 confirming the search information, the controller 119 checks the link information of the selected content and then the mobile communication network 130. Through the access to the corresponding content providing server (not shown) to receive the corresponding content.

5 is a flowchart illustrating a process of receiving a content search service in a mobile communication terminal according to an embodiment of the present invention, and FIG. 6 is a screen of a mobile communication terminal requesting and providing a content search service according to an embodiment of the present invention. The figure shown.

Hereinafter, a process of receiving a content search service in a mobile communication terminal according to an embodiment of the present invention will be described in detail with reference to FIGS. 5 and 6.

First, when the content search word and the content search request service code are input from the user of the mobile communication terminal 110 through the key input unit 113 (S510 and 6a), the control unit 119 displays the content search word together with the content search request service code. It is determined whether the input (S520).

If it is determined in step S520 that the content search word is input, the controller 119 generates a content search request message including the content search word and the content search request service code through the USSD message processor 117 (S523). If it is determined that the content search word is not input, the USSD message processing unit 117 generates a content search request message including only the content search request service code (S525).

Subsequently, the controller 119 transmits a content search request message to the content search service providing server 150 through the wireless processor 111 (S530), and from the content search service providing server 150 through the wireless processor 111. It is determined whether a content search result message is received (S540).

If it is determined in step S540 that the content search result message is received, the controller 119 extracts the content search information from the content search result message through the USSD message processing unit 117 and outputs the search information through the display unit 115. (S543, 6b). In this case, the display unit 115 outputs search information in a selectable list manner so that a user of the mobile communication terminal 110 can select specific content.

Subsequently, the controller 119 determines whether a selection command for specific content is input from the user of the mobile communication terminal 110 through the key input unit 113 (S550, 6c). Check the location address of the selected content from the user of the mobile communication terminal 110, download the content to the content providing server that provides the content through the wireless processing unit 111 (S553, 6d), the mobile communication terminal 110 The corresponding content is provided to the user (S555, 6e).

FIG. 7 is a diagram schematically illustrating a configuration of a content search service providing server that provides a content search service according to an exemplary embodiment of the present invention.

Referring to FIG. 7, the content search service providing server 150 according to an embodiment of the present invention includes a transceiver 151, a USSD message processor 153, a searcher 155, a search list generator 157, and a controller. 159.

The transceiver 151 is connected to the mobile communication switching station 135 of the mobile communication network 130 to receive a content search request message from the mobile communication terminal 110 and to move the content search result message with respect to the received content search request message. Transmit to communication terminal 110.

The USSD message processor 153 extracts the content search word and the service code input by the user of the mobile communication terminal 110 from the content search request message received through the transceiver 151.

In addition, the USSD message processing unit 153 may search the content of the USSD message method including the content search result providing service code for providing the content search information and the content search information about the content that matches the content search word in the search unit 155. Create a message. At this time, the USSD message processor 153 inserts the content search information and the content search result providing service code into the USSD-String parameter of the content search result message.

The searcher 155 searches the content information database 160 for content that matches the content search word extracted by the USSD message processor 117.

The search list generator 157 organizes the content search information searched by the searcher 155 into a list format and transmits the searched content search information to the USSD message processor 153.

The controller 159 controls the overall operation of the content search service providing server 150. When the content search request message of the mobile communication terminal 110 is received through the transceiver 151, the USSD message processor 153 is used. Extracts the content search word and the service code and checks the type of service requested by the mobile communication terminal 110 through the service code. At this time, if it is determined that the content search word is not included in the content search request message, the controller 159 generates and transmits a content search word input request message including a service code for requesting input of the content search word to the mobile communication terminal 110. Alternatively, the latest content list is received from the content information database 160 through the search unit 155 and inserted into the content search result message to be transmitted to the mobile communication terminal 110.

In addition, the controller 159 searches for content that matches the content search word extracted by the USSD message processor 153 through the searcher 155, and the content searched by the searcher 155 through the search list generator 157. Arrange the search information in list format.

In addition, the controller 159 generates a content search result message including a content search result providing service code for providing the content search information and the search information arranged by the search list generator 157 using the USSD message processor 153. And, it transmits to the mobile communication terminal 110 through the transceiver 151.

Here, although the exemplary embodiment of the present invention describes that the content search information is arranged in a list form through the search list generation unit 157, the present invention is not necessarily limited thereto, and the search list generation unit 157 forms the content search information in a list format. It is also possible to include the content search information searched by the search unit 155 in the content search result message and send it without the arrangement.

8 is a flowchart illustrating a process of providing content search information in a content search service providing server according to an embodiment of the present invention, and FIG. 9 provides content search information in a content search service providing server according to another embodiment of the present invention. It is a flow chart showing the process.

Here, for convenience of description, the process of providing content search information in the content search service providing server according to the embodiment of the present invention and the process of providing content search information in the content search service providing server according to another embodiment of the present invention Since only a part is different, the basic content will be described together, and the other parts of the two embodiments will be mentioned in the middle of the content.

First, when a content search request message is received from the mobile communication terminal 110 through the transceiver 151 (S810 and S910), the controller 159 searches for content in the content search request message using the USSD message processor 153. In operation S820 and S920, if the content search request message determines that the content search word is included in the content search request message, the content search unit 155 may search for content corresponding to the content search word from the content information database 160. Search is performed (S823, S923). Herein, the controller 159 checks the service code included in the content search request message, and if the service code is the content search request service code, searches the content corresponding to the content search word.

If it is determined in step S820 and S920 that the content search request message does not include the content search word, the controller 159 generates and moves a content search word input request message for requesting the content search word input through the USSD message processor 153. The mobile terminal 110 transmits the latest content list from the content information database 160 through the search unit 155 or inserts it into the content search result message and transmits it to the mobile communication terminal 110 (S923). ).

Subsequently, the controller 159 determines whether search information that matches the content search word exists in the content information database 160 (S830 and S930), and if it is determined that the content search information that matches the content search word exists, the search unit 155. The content search information retrieved from the list is listed using the search list generator 157 (S833 and S933).

Subsequently, the controller 159 generates a content search result message including the content search information and the content search result providing service code using the USSD message processor 153 (S835 and S935) and moves through the transceiver 151. Transmit to communication terminal 110 (S837, S937).

If it is determined in step S830 and step S930 that there is no content search information that matches the content search word, the controller 159 generates an error message indicating that the content search word does not exist using the USSD message processing unit 153. 110) (S839, S939).

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a view schematically showing the configuration of a system for providing a content search service according to an embodiment of the present invention.

2 is a view showing a service code table for a content search service according to an embodiment of the present invention.

3 is a diagram illustrating a schematic configuration of a mobile communication terminal provided with a content search service according to an exemplary embodiment of the present invention.

4 illustrates a format of a USSD message according to an embodiment of the present invention.

5 is a flowchart illustrating a process of receiving a content search service in a mobile communication terminal according to an embodiment of the present invention.

6 is a diagram illustrating a screen of a mobile communication terminal requesting and receiving a content search service according to an exemplary embodiment of the present invention.

7 is a diagram schematically illustrating a configuration of a content search service providing server for providing a content search service according to an embodiment of the present invention.

8 is a flowchart illustrating a process of providing a content search service in a content search service providing server according to an exemplary embodiment of the present invention.

9 is a flowchart illustrating a process of providing a content search service in a content search service providing server according to another exemplary embodiment of the present invention.

Claims (14)

A message processing unit which extracts a content search word from a content search request message of an unstructured supplementary service data (USSD) message type received from a mobile communication terminal; A search unit for searching for a content that matches the content search word; And Search for a content that matches the content search term using the search unit, and transmit a content search result message of an unstructured value-added data service type message with content search information inserted as a result of searching for content that matches the content search term. It includes a control unit for transmitting to the terminal, The controller determines whether a content search term is included in the content search request message received from the mobile communication terminal, and if it is determined that the content search term is not included in the content search request message, the controller inputs a content search term. Transmitting a content search word input request message of a requesting unstructured supplementary service data message method to the mobile communication terminal to receive a content search request message including a content search word from the mobile communication terminal; Apparatus for providing a content search service, characterized in that. The method of claim 1, The message processing unit And a content search service and a service code from the USSD-String parameter of the content search request message. The method of claim 2, The control unit And searching for content corresponding to the content search word using the search unit if the service code extracted from the message processor is a content search request service code. The method of claim 3, wherein The control unit Inserting the content search information and a content search result providing service code (here, the content search result providing service code is a code indicating that the content search information is transmitted) into the USSD-String parameter of the content search result message; Apparatus for providing a content search service transmitted to a terminal. delete A message processing unit which extracts a content search word from a content search request message of an unstructured supplementary service data (USSD) message type received from a mobile communication terminal; A search unit for searching for a content that matches the content search word; And Search for a content that matches the content search term using the search unit, and transmit a content search result message of an unstructured value-added data service type message with content search information inserted as a result of searching for content that matches the content search term. It includes a control unit for transmitting to the terminal, If the service code extracted from the message processor is a content search request service code, the controller searches for content that matches the content search word using the search unit, If only the content search request service code is present in the content search request message, the controller searches the updated content list through the search unit and transmits an unstructured additional service data message including the searched content list to the mobile communication terminal. Device for providing a content search service. a) determining whether a content search word is included in a content search request message of an Unstructured Supplementary Service Data (USSD) message type received from a mobile communication terminal; b) if it is determined in step a) that the content search word is included, searching for content that matches the content search word; c) including the search result searched for the content search word in step b) in a content search result message of an unstructured supplementary service data message method and transmitting it to the mobile communication terminal; And d) If it is determined in step a) that the content search term is not included, the content search term input request is transmitted to the mobile communication terminal by using the content search term input request message of an unstructured supplementary service data message method. Receiving a content search request message Content search service providing method comprising a. The method of claim 7, wherein The content search request message is And a service code requesting a content search in the USSD-String parameter of the content search request message. The method of claim 8, Step c) is The search result and the content search result providing service code (wherein, the content search result providing service code is a code indicating that the search result is transmitted) are inserted into the USSD-String parameter of the content search result message to the mobile communication terminal. Method of providing a content search service to transmit. delete In the mobile communication terminal receiving a content search service from a content search service providing server, Generates a content search request message using an Unstructured Supplementary Service Data (USSD) message method including a content search word input by a user of the mobile communication terminal and a content search request service code, and generates a content search request message for the content search request message. A message processing unit which extracts search information for content that matches the content search word from a content search result message received from the content search service providing server in response; And When the content search word and the content search request service code are input from the user of the mobile communication terminal, the content search request message is generated through the message processor and transmitted to the content search service providing server, and from the content search service providing server. And a controller configured to extract and display the search information through the message processing unit when the content search result message is received. The controller determines whether a content search word is input together with a content search request service code from a user. When the content search word is not input from the user and only the content search request service code is determined, the input content search request is input. Generates a content search request message including only a service code and transmits the generated content search request message to the content search service providing server and requests a content search word input from the content search service providing server in response to the content search request message. To receive Mobile communication terminal, characterized in that. The method of claim 11, The message processing unit And inserting the content search word and the content search request service code into a USSD-String parameter of the content search request message. a) determining whether a content search word is input when there is a content search request service code input; b) If there is a content search word input in step a), the content search request service code and a content search request message in the form of Unstructured Supplementary Service Data (USSD) message type including the content search word are generated. Transmitting to a search service providing server; c) receiving a content search result message including search information from the content search service providing server, wherein the search information is information about content corresponding to the content search word searched by the content search service providing server; Extracting and displaying the search information from a content search result message; And d) If there is no content search term input in step a), a content search request message including only the content search request service code is generated and transmitted to the content search service providing server, and the content search is performed in response to the content search request message. Receiving a content query input request message requesting a content search word input from the service providing server Content search service request method comprising a. The method of claim 13, Step b) is And inserting the content search word and the content search request service code into a USSD-String parameter of the content search request message and transmitting the same to the content search service providing server.

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