KR20090118482A - Method for connecting portable terminal using relay server - Google Patents

Abstract

PURPOSE: A method for connecting a portable terminal using a relay server is provided to connect a relay server to a portable terminal, thereby removing needs of a cable for connecting between a computer and a portable terminal and a communication unit for supporting Bluetooth or infrared communication. CONSTITUTION: When a relay server(130) receives a communication connection request signal with a portable terminal(120) from a computer(110), the relay server determines whether a user is valid. If the user is valid, the relay server allows access of the computer. The relay server requests access to the portable terminal through access information of the portable terminal. The relay server requests file list information to the portable terminal. When the relay server receives the file list information from the portable terminal, the relay server transmits the received file list information to the computer.

Description

Portable terminal connection method using relay server {METHOD FOR CONNECTING PORTABLE TERMINAL USING RELAY SERVER}

The present invention relates to a portable terminal access method using a relay server, and more particularly, to a portable terminal access method using a relay server to be connected to a portable terminal from a computer.

In recent years, due to the rapid development of information and communication technology, portable terminals have not only voice calls but also games, Internet, camera, Short Message Service (SMS), Multimedia Messaging System (MMS), MPEG Audio Layer-3 (MP3), removable disk and DMB. It is equipped with (Digital Multimedia Broadcasting) function to provide various services to users.

Accordingly, the user can access the Internet using a portable terminal to download contents such as music, video, games, ringtones, or the like by connecting the portable terminal to an external device such as a computer to transmit or receive data or by using a camera function. Alternatively, still images are taken, and the contents, data, moving images, or still images are stored in a memory of the portable terminal.

As the portable terminal provides various functions and increases user data to be stored, recently, the portable terminal has been manufactured to have a large internal memory or to insert an external memory.

Meanwhile, the portable terminal and the external device are connected through a wired cable such as a USB cable or through a wireless communication such as Bluetooth communication or infrared communication.

However, when connecting a portable terminal and an external device with a USB cable as described above, always carry a USB cable, and when connecting a portable terminal and an external device by Bluetooth communication or infrared communication, both the portable terminal and the external device are Bluetooth communication or infrared There is a problem that must support communication.

Accordingly, an object of the present invention for solving the above problems is to provide a portable terminal access method using a relay server that can be connected to a portable terminal from a computer without a wired cable or a separate communication unit.

Accordingly, in the portable terminal access method using the relay server according to the present invention, when the relay server receives the communication connection request signal from the computer from the computer, it is determined whether the user is a valid user and the connection of the computer if the user is a valid user. First step to allow; A second step of the relay server connecting to the portable terminal by making a connection request to the portable terminal through the access information of the portable terminal; And a third step of transmitting the received file list information to the computer when the relay server requests file list information from the portable terminal by requesting the file list information from the portable terminal.

The second step may further include requesting, by the relay server, the connection information of the portable terminal from the AAA server to an authentication, authorization and accounting (AAA) server.

In addition, the access information of the portable terminal is characterized in that the private IP (Internet Protocol) information.

The file list information of the third step may be higher file list information.

The relay server may request the file list information to the portable terminal at an idle time when there is no signal transmission and reception with the computer, and the portable terminal receives the file list information request signal from the relay server. Collecting lower file list information of the upper file list information and transmitting the lower file list information to the relay server; and receiving, by the relay server, the lower file list information from the portable terminal and storing the lower file list information in a cache memory. It is done.

The third step may include transmitting the received file transmission / reception command to the portable terminal when the relay server receives a file transmission / reception command from the computer, wherein the portable terminal receives the file transmission / reception command from the computer. And transmitting the resultant file list information to the relay server by processing a file corresponding to the received file transmission / reception command, and the relay server receiving the result file list information from the portable terminal to the computer. The method may further include transmitting.

The file transmission / reception command may correspond to one of file download, file upload, and file deletion.

In addition, the signal transmission and reception between the computer and the relay server or the relay server and the portable terminal is characterized by the FTP (File Transfer Protocol) protocol.

According to the present invention, there is an effect that it is not necessary to provide a wired cable or a communication unit supporting Bluetooth or infrared communication in order to connect the computer and the portable terminal by connecting the portable terminal through the relay server from the computer.

Accordingly, when there is a computer connected to the network anytime and anywhere, the computer can access the portable terminal in real time and transmit and receive files.

As a result, there is an advantage that the portable terminal can be conveniently used as a removable disk without a connecting means.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

However, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

1 is a view showing the configuration of a connection system of a portable terminal to which the present invention is applied.

Referring to FIG. 1, a file transmission / reception system includes a computer 110, a portable terminal 120, a relay server 130, and an AAA server 140.

The computer 110 is a device that can be connected to a network and includes a connection program for connecting to the portable terminal 120. Preferably, the access program transmits and receives a signal according to the FTP (File Transfer Protocol) protocol for quickly transmitting and receiving a large file.

The computer 110 outputs a communication connection request signal with the portable terminal 120 through a network. When the computer 110 is connected to the portable terminal 120, the computer 110 transmits a file stored in the computer 110 to the portable terminal 120. A file transmission / reception command for transmitting or deleting a file stored in the portable terminal 120 or downloading the file to the computer 110 is transmitted to the portable terminal 120. The communication connection request signal includes identification information of the portable terminal 120 and authentication information for determining whether the user who transmitted the communication connection request signal is a valid user.

The portable terminal 120 is a device such as a mobile phone, a personal digital assistant (PDA), a notebook, a smart phone, and the like, and corresponds to all portable devices wirelessly connected to a network.

In addition, the portable terminal 120 is provided with a connection program for transmitting and receiving signals in accordance with the FTP protocol, similar to the computer 110. The access program outputs the file list information of the mobile terminal 120 to the outside, controls the file according to a file transmission / reception command input from the outside, performs file processing corresponding to the file transmission / reception command, and the result file list Print information. The file list information includes upper file list information including at least one of a name of each file including an upper folder, a size and type of each file, and modified date information, and lower file list information related to lower folders included in the upper folder. do. The file transmission / reception command corresponds to one of file upload, file download, and file deletion. In this case, the portable terminal 120 outputs the upper file list information when the file list information is output to the outside.

The relay server 130 operates as an FTP (File Transfer Protocol) server to control file transmission and reception between the computer 110 and the portable terminal 120. When the relay server 130 receives a communication connection request signal from the computer 110, the communication connection is performed. It is determined whether the user is a valid user based on the authentication information included in the request signal.

In addition, the relay server 130 allows the connection of the computer 110, and then requests a communication connection to the portable terminal 120 using the connection information of the portable terminal 120 corresponding to the communication connection request signal, When receiving the acceptance signal in response to the communication connection request from the portable terminal 120, it is connected to the portable terminal 120. The access information of the portable terminal means private IP information provided to the portable terminal.

The relay server 130 requests the file list information from the connected portable terminal 120 and transmits the received file list information to the computer 110 when receiving the file list information from the portable terminal 120. .

Subsequently, when receiving a file transmission / reception command from the computer 110, the relay server 130 transmits the received file transmission / reception command to the mobile terminal 120 to respond to the file transmission / reception command, and transmits the file list information to the portable terminal 120. When receiving from the terminal 120, the result file list information is transmitted to the computer (110).

In addition, the relay server 130 requests the file list information to the portable terminal 120 at idle time without signal transmission and reception with the computer 110, and internally stores the file list information received from the portable terminal 120. (cache) Store in memory. The idle time is a command or a signal (for example, a file) from the computer 110 while the relay server 130 is connected to the computer 110, or the relay server 130 transmits a signal to the computer. It is preferable to mean the state which does not.

Accordingly, when the relay server 130 receives a request signal for the lower file list information of the portable terminal 120, for example, the file list information of the lower folder, from the computer 110, the relay server 130 is stored in the cache memory in advance. Since the file list information of the folder is transmitted to the computer 110, signal transmission and reception with the portable terminal 120 are not required, and thus, the file list information of the portable terminal 120 can be transmitted to the computer 110 more quickly.

The AAA (Authentication, Authorization and Accounting) server 140 authenticates / charges from a client (Packet Switched Data Network (PDSN), Home Agent (HA), network interworking device) (not shown) that provides subscriber access processing and services. It receives the request message and performs the functions of Authentication, Authorization, and Accounting. In addition, in conjunction with the subscriber database, it provides information such as services and quality of service (QoS) authorized to the subscriber or terminal, and stores private IP (Internet Protocol) information granted to each subscriber portable terminal. Accordingly, when the relay server 130 requests access information, that is, private IP information, of the predetermined portable terminal 120, the relay server 130 transmits the private IP information of the portable terminal 120 to the relay server 130.

Meanwhile, signal transmission and reception between the computer 110 and the relay server 130 or between the relay server 130 and the portable terminal 120 may be performed in a manner other than the FTP protocol. Since the user is viewing the file list information of the portable terminal 120 displayed on the screen of the computer 110, the relay server 130 sends a signal (for example, file list information of the portable terminal) to the computer determined to be a valid user. In the case of transmission, the computer 110 processes the transmitted signal into a form that can be decoded and transmitted. For example, the relay server 130 may determine that the file list information is one of Extensible Markup Language (XML), Hypertext Markup Language (HTML), and American Standard Code for Information Interchange (ASCII) Text in the form of a web browser. The file list information is processed and transmitted so that it can be displayed on the screen.

2 is a flowchart illustrating a portable terminal access method using a relay server according to the present invention. Here, it will be described on the assumption that the signal transmission and reception between the computer and the relay server or the relay server and the portable terminal is made by the FTP protocol.

The computer 110 transmits a communication connection request signal with the specific portable terminal 120 to the relay server 130 (S201). The communication connection request signal includes identification information of the portable terminal 120 and authentication information for determining whether the user who transmitted the communication connection request signal is a valid user. Identification information of the portable terminal 120 is preferably, for example, a mobile phone number, serial number, authentication number.

When the relay server 130 receives the communication connection request signal from the computer 110, the relay server 130 determines whether the user is a valid user based on the authentication information included in the communication connection request signal, and if the user is a valid user, accesses the computer 110. (S203, S205).

In addition, the relay server 130 requests the AAA (Authentication, Authorization and Accounting) server 140 for access information of the portable terminal 120 corresponding to the communication connection request signal, that is, private IP information provided to the portable terminal. (S207).

When the AAA server 140 receives the access information request signal of the predetermined portable terminal 120 from the relay server 130, the AAA server 140 transmits the access information of the portable terminal 120 to the relay server 130 (S209). .

When the relay server 130 receives the access information of the portable terminal 120 from the AAA server 140, the relay server 130 transmits a communication connection request signal to the portable terminal 120 through the received access information of the portable terminal 120. (S211).

When the mobile terminal 120 receives the communication connection request signal from the relay server 130, the portable terminal 120 transmits an acceptance signal in response to the communication connection request signal to the relay server 130 (S213).

When the relay server 130 receives the acceptance signal in response to the communication connection request signal from the portable terminal 120, the relay server 130 connects to the portable terminal 120 and requests the file list information from the portable terminal 120 (S215, S217). In this case, the portable terminal 120 connected to the relay server 130 may not perform any application.

When the portable terminal 120 receives the file list information request signal from the connected relay server 130, the portable terminal 120 collects upper file list information and transmits the collected upper file list information to the relay server 130 (S219).

When the relay server 130 receives the upper file list information from the portable terminal 120, the relay server 130 transmits the received upper file list information to the computer 110 (S221). In addition, the relay server 130 requests file list information from the portable terminal at idle time without signal transmission / reception with a computer, and stores the file list information received from the portable terminal in a cache memory. That is, the relay server 130 requests file list information from the relay terminal 130 at idle time, and the portable terminal 120 transmits lower file list information according to the file list information request signal received from the relay server 130. Collect and transmit to the relay server 120. Accordingly, when a request signal for specific lower file list information is received from the computer 110, the relay server 130 may correspond to the lower file list information among the file list information of the portable terminal 120 previously stored in the cache memory. By transmitting the file list information to the computer 110, the file list information of the portable terminal 120 can be transmitted to the computer 110 at a higher speed.

After the step S221, when the computer 110 receives the file list information of the portable terminal 120 from the relay server 130, the computer 110 displays the received upper file list information on the screen (S223) and the file from the user. When the transmission and reception command is input, the file transmission and reception command is transmitted to the relay server 130 (S225).

When the relay server 130 receives the file transmission / reception command from the computer 110, the relay server 130 transmits the received file transmission / reception command to the portable terminal 120 (S227).

When the mobile terminal 120 receives a file transmission / reception command from the relay server 130, the portable terminal 120 processes a file corresponding to the file transmission / reception command and transmits the processed result file list information to the relay server 130 (S229). .

For example, when the relay server 130 receives a file upload command together with a predetermined file from the computer 110, the relay server 130 transmits the received file to the portable terminal 120. Then, the portable terminal 120 receives and stores a file from the relay server 130 and transmits the stored result file list information to the relay server 130.

When the relay server 130 receives the result file list information from the portable terminal 120, the relay server 130 transmits the received result file list information to the computer 110 (S231).

When the computer 110 receives the result file list information from the relay server 130, it displays on the screen (S233).

While the invention has been shown and described with reference to certain preferred embodiments, it will be apparent to those skilled in the art that various modifications may be made without departing from the scope of the invention with respect to the embodiments described above. And can be varied. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

1 is a view showing the configuration of a connection system of a portable terminal to which the present invention is applied; and

2 is a flowchart illustrating a portable terminal access method using a relay server according to the present invention.

Claims (8)

When the relay server receives a communication connection request signal from the computer from the computer, determining whether the relay server is a valid user and permitting access to the computer if the relay server is a valid user; A second step of the relay server connecting to the portable terminal by making a connection request to the portable terminal through the access information of the portable terminal; And And transmitting the received file list information to the computer when the relay server requests the file list information from the portable terminal by requesting the file list information from the portable terminal. The method of claim 1, The second step, The relay server further comprises the step of requesting the AAA (Authentication, Authorization and Accounting) server the connection information of the portable terminal from the AAA server, characterized in that it further comprises a mobile terminal access method. The method according to claim 1 or 2, Connection information of the portable terminal is a portable terminal access method using a relay server, characterized in that the private IP (Internet Protocol) information. The method of claim 1, The file list information of the third step is A portable terminal access method using a relay server, characterized in that the upper file list information. The method of claim 4, wherein Requesting, by the relay server, the file list information to the portable terminal at an idle time when there is no signal transmission / reception with the computer; Receiving, by the portable terminal, the file list information request signal from the relay server, collecting lower file list information of the upper file list information, and transmitting the collected file list information to the relay server; And receiving, by the relay server, the lower file list information from the portable terminal and storing the lower file list information in a cache memory. The method of claim 1, The third step is Transmitting the received file transmission / reception command to the portable terminal when the relay server receives a file transmission / reception command from the computer; When the portable terminal receives the file transmission / reception command from the computer, processing the file corresponding to the received file transmission / reception command and transmitting the processed file list information to the relay server; And transmitting, by the relay server, the result file list information from the portable terminal to the computer. The method of claim 6, The file transmission and reception command is A portable terminal access method using a relay server, characterized in that it corresponds to one of file download, file upload, and file deletion. The method of claim 1, Signal transmission and reception between the computer and the relay server or the relay server and the portable terminal A connection method of a portable terminal using a relay server, characterized in that the file transfer protocol (FTP) protocol.

Images