KR20070037032A - Communication device of enabling small scale network and method for operating the communication device - Google Patents

Abstract

The present invention relates to a small network implementation method for providing an Internet service to a predetermined second communication terminal located at a short distance by a communication method such as PLC, UWB, Bluetooth, or WLAN using a communication terminal, and a configuration of the communication terminal. will be. According to the present invention, a small network can be established through a communication terminal such as a mobile phone so that an Internet service can be provided while on the go.

Car, Network, Gateway, Mobile Phone, Local Area Communication

Description

TECHNICAL DEVICE OF ENABLING SMALL SCALE NETWORK AND METHOD FOR OPERATING THE COMMUNICATION DEVICE

1 is a diagram illustrating an example of a small network implemented using a communication terminal according to the present invention.

2 is a flowchart illustrating a method of operating a communication terminal according to an embodiment of the present invention.

3 is a block diagram illustrating an internal configuration of a communication terminal according to an embodiment of the present invention.

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

300: communication terminal 301: short-range communication module

302: IP address receiving unit 303: IP address distribution unit

304: data communication unit

The present invention relates to a small network implementation method for providing an Internet service to a predetermined second communication terminal located at a short distance by a communication method such as PLC, UWB, Bluetooth, or WLAN using a communication terminal, and a configuration of the communication terminal. It is about.

Today, with the development of the digital industry, various digital devices are evolving. These various digital devices have a communication function such as the Internet to perform Internet communication through a predetermined communication company system. For example, the notebook computer may provide an Internet service at a place where a predetermined network system is established even while moving over a wireless LAN.

However, a digital device capable of internet communication, such as a notebook computer, has a disadvantage in that the Internet service can be provided only at the place where the network system is constructed. This may act as a critical problem for a portable communication terminal developed for portability. That is, even if a digital device capable of internet communication is developed, there is a problem in that the Internet service cannot be substantially provided due to a time or space problem in which the Internet service can be provided.

The present invention has been made to improve the prior art as described above, and aims to provide a small network through a communication terminal such as a mobile phone to receive the Internet service on the go.

In order to achieve the above object and to solve the above-mentioned problems of the prior art, a method of operating a communication terminal for implementing a small-scale network system according to the present invention comprises the steps of maintaining at least one short-range communication module-the short-range communication module Any one of a UWB (Ultra Wideband) communication module, a PLC (Power Line Communication) communication module, a Bluetooth module, or a WLAN (Wireless LAN) communication module-receiving an IP address capable of accessing the Internet from a predetermined communication company system, wherein Allocating a local IP address corresponding to the IP address to a second communication terminal located at a communication distance from a short range communication module, wherein the second communication terminal maintains the short range communication module; and a predetermined distance from the second communication terminal. Collects and transmits a data transmission request to the communication company system, When receiving the predetermined data from the computer, transmitting the data to the second communication terminal.

In addition, the communication terminal according to an embodiment of the present invention is a short-range communication module for performing short-range communication with a second communication terminal by the wired or wireless communication-the short-range communication module is UWB (Ultra Wideband) communication module, PLC (Power Line) Communication module comprising any one of a communication module, a Bluetooth module, or a wireless LAN (WLAN) communication module-an IP address receiving unit to which an IP address capable of accessing the Internet is assigned from a predetermined communication company system, from the short-range communication module An IP address distribution unit for distributing a local IP address corresponding to the IP address to a predetermined second communication terminal located at a communication distance, wherein the second communication terminal maintains the short range communication module; and from the second communication terminal Collect and transmit a predetermined data transmission request to the communication company system Receiving the data by a data communication unit for transmitting to the second communication terminal.

Hereinafter, a network implementation method and a communication terminal using a communication terminal according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating an example of a small network implemented using a communication terminal according to the present invention.

As shown in FIG. 1, the communication terminal 110 according to the present invention includes an ultra wideband (UWB) communication module 130, a power line communication (PLC) communication module 120, or a wireless LAN (WLAN) communication module 140. It includes a short-range communication module, etc., and performs communication with a second communication terminal located within a predetermined distance. To this end, the second communication terminal also includes the short range communication module.

The above-described PLC (Power Line Communication) is a communication method that can transmit and receive multimedia data at high speed by plugging a power cable into a power socket of a home or office, and is also called power line communication. These PLCs enable home networks that connect all information devices in the home, such as televisions, telephones, or computer terminals. Therefore, when a PLC is used, a data transmission path, which is complicated by a wired television network, a telephone line (PSTN), an optical communication network, and the like, can be integrated into one power line. PLC communication module 120 refers to a communication module that provides such a PLC.

Communication using the UWB is a wireless communication technology that can share the frequency band with the existing wireless communication system by spreading the signal to a wide range of bands using a very short pulse and lowering the signal level. While the existing wireless technologies use a specific narrow band frequency band, the UWB communication module 130 has the possibility of solving the shortage problem using the ultra wide frequency band while sharing the frequency band with other systems, and transmitting data at high speed. It is possible to provide a very high speed system. The UWB communication module 130 uses a ultra-wideband high-speed wireless interface to see a short distance personal network or building wall that connects a computer terminal with peripheral devices and home appliances in a short distance (average of 10 to 20 m and a maximum of 100 m). Applications include radar, high-precision positioning, vehicle collision avoidance, landmine detection and loss prevention systems.

The WLAN communication module 140 was introduced in 2000 in Korea and is an active communication method centering on universities and enterprises, and is mainly referred to as wireless LAN communication. The WLAN communication module 140 has a transmission speed of 4 to 11 Mbps, and can transmit and receive a large amount of multimedia information. The WLAN communication module 140 has low usage fees even when used for a long time, and has mobility as well as security. It can be used mainly for temporary network installations such as department stores, hospitals / museums, and exhibitions / seminars / construction sites with complicated wired connections.

In the present specification, a PLC communication module 120, a UWB communication module 130, and a WLAN communication module 140 are described as examples of a short range communication module, but the present invention is not limited to the above communication module, and may perform short range communication. Obviously, all communication modules can be applied to the present invention.

In order to establish a local area network, the communication terminal 110 requests an IP address capable of communicating with the Internet to the telecommunication company system 150. The communication company system 150 allocates a predetermined IP address to the communication terminal 110. Accordingly, the communication terminal 110 processes the IP address into a private IP address and distributes the IP address to a second communication terminal having the communication module.

The short-range communication module provided in the communication terminal 110 according to an embodiment of the present invention may include a Dynamic Host Configuration Protocol (DHCP) module. Accordingly, the communication terminal 110 dynamically allocates the IP address allocated from the communication company system 150 to the second communication terminal currently connected to the short range communication module.

The short-range communication module provided in the communication terminal 110 according to another embodiment of the present invention further includes a NAT (Network Address Translation) module to process the IP address allocated from the communication company system 150 into a private IP address. It may include.

The second communication terminal assigned the private IP address transmits data including a predetermined domain name to the communication terminal 110, and the communication terminal 110 transmits the data to a predetermined web server corresponding to the domain name. Control to forward In this case, the communication terminal 110 may transmit the data to the communication company system 150.

For example, the second communication terminal may be a notebook computer, and the short range communication module may be a WLAN communication module 140. The communication terminal 110 processes a predetermined IP address into a private IP address and assigns it to the notebook computer, and the notebook computer transfers predetermined data to the communication terminal 110. The communication terminal 110 controls to transmit the data to a predetermined web server. In order to smoothly transmit and receive data, the communication terminal 110 may function as a router, a firewall, or a traffic controller. That is, the communication terminal 110 may provide a control function such as TCP / UDP connection, traffic control, node number management in the network, and restriction of a communication module according to a transmission bandwidth of data through a predetermined management application.

As a result, a small network can be established through a communication terminal such as a mobile phone to provide Internet services on the go.

2 is a flowchart illustrating a method of operating a communication terminal according to an embodiment of the present invention.

2, a communication terminal in accordance with the present invention maintains one or more near field communication modules (step 201). The short range communication module is a device for providing wired and wireless communication within a predetermined distance and includes a communication module such as a PLC communication module, a UWB communication module, a WLAN communication module, and a Bluetooth communication module. The short range communication module communicates with a second communication terminal located within a predetermined distance from the communication terminal. To this end, the second communication terminal also includes a short range communication module corresponding to a short range communication module maintained by the communication terminal. For example, the second communication terminal is a portable digital device including a notebook computer, a portable multimedia player (PMP), an electronic notebook, and a portable game machine.

In step 202, the communication terminal requests an IP address for performing internet communication with the communication company system, and the communication company system transmits a predetermined IP address to the communication terminal (step 203). The telecommunication company system may be interpreted as a broad concept including an Internet service provider (ISP) system, a mobile telecommunication company system, or a content provider (CP) system.

In step 204, an Internet-accessible IP address is received from a predetermined communication company system, and the received IP address is processed into a plurality of private IPs.

The communication terminal according to an embodiment of the present invention processes the IP address into a plurality of private IP addresses through the NAT module. The communication terminal also assigns the processed private IP address to a second communication terminal.

The short-range communication module of the communication terminal according to an embodiment of the present invention may further include a Dynamic Host Configuration Protocol (DHCP) module. Accordingly, the communication terminal dynamically allocates the private IP address only to a second communication terminal connected to the short-range communication module among a plurality of second communication terminals.

The second communication terminal assigned the private IP address transmits predetermined data to the communication terminal through the short range communication module, and the communication terminal reprocesses the private IP address to the IP address through the NAT module to predetermine the predetermined data. Perform data communication with the system (step 206). In one example, the system is the communication company system, the communication company system transmits the data to a predetermined web server, and transmits the predetermined data fed back from the web server to the communication terminal corresponding to the IP address. Accordingly, the communication terminal transmits the fed back predetermined data to the second communication terminal corresponding to the private IP address. At this time, the data transmitted to the second communication terminal is transmitted through the short range communication module.

The network using a communication terminal according to an embodiment of the present invention is installed in a vehicle. For example, the communication terminal may use a cable means installed in the vehicle as a backbone network for PLC communication. To this end, by connecting the PLC communication module of the communication terminal with the PLC communication module provided in the vehicle, the second communication terminal and the communication terminal connected to the backbone network can perform short-range communication. That is, the second communication terminal transmits predetermined data to the communication terminal through the backbone network, and the communication terminal receiving the data transmits the data to predetermined network address information included in the data. At this time, the data may be transmitted via the communication company system. Further, in a vehicle network using a communication terminal, a hands-free power source installed in the vehicle can be used as the communication terminal power supply means.

3 is a block diagram illustrating an internal configuration of a communication terminal according to an embodiment of the present invention.

The communication terminal 300 according to the present invention includes a short range communication module 301, an IP address receiving unit 302, an IP address distribution unit 303, and a data communication unit 304.

The short range communication module 301 performs short range communication with a predetermined second communication terminal in a wired or wireless communication manner. For the short range communication, the short range communication module 301 includes a short range communication module such as an ultra wideband (UWB) communication module, a power line communication (PLC) communication module, a wireless LAN (WLAN) communication module, and a Bluetooth communication module. In order to perform the short range communication with the communication terminal, the second communication terminal must also include a predetermined communication module corresponding to the short range communication module 301. For example, when the communication terminal 300 includes an access point (AP) as the local area communication module 301, the second communication terminal preferably includes a wireless LAN.

The IP address receiving unit 302 receives an IP address capable of connecting to the Internet from a predetermined communication company system. In order to provide an Internet service to the second communication terminal such as to transfer data received from the second communication terminal to a predetermined web server, the IP address receiving unit 302 of the communication terminal 300 is connected to the Internet from the communication company system. Requests an IP address that can communicate, and is assigned a predetermined IP address.

The IP address distribution unit 303 distributes a local IP address corresponding to the IP address to the second communication terminal located at a communication distance from the short range communication module 301. The communication terminal 300 provides an Internet service to a plurality of second communication terminals located within a predetermined distance. That is, in order to provide Internet services to a plurality of second communication terminals through one IP address maintained by the IP address receiving unit 302, the IP address distribution unit 303 generates a local IP address such as a private IP, The generated local IP address is distributed to the second communication terminal.

The IP address distribution unit 303 according to an embodiment of the present invention distributes a predetermined IP address to the second communication terminal when a communication channel with the second communication terminal is established. That is, a second communication terminal which is located within a predetermined distance with respect to the communication terminal 300 and requests a local IP address from the communication terminal 300 among the second communication terminals provided with the communication module corresponding to the short range communication module 301. The IP address distribution unit 303 distributes the local IP address.

The data communication unit 304 collects a predetermined data transmission request from the second communication terminal and transmits the predetermined data transmission request to the communication company system or receives and transmits predetermined data from the communication company system to the second communication terminal. For example, the short range communication module 301 may include a UWB communication module, and when the second communication terminal is a predetermined game machine having the UWB communication module, the second communication terminal may be connected to the game machine through the UWB communication module. And transmits predetermined data generated from the communication terminal to the predetermined game server through the IP address. In addition, the predetermined data received from the game server is converted into a predetermined local IP address corresponding to the game machine, and transmitted to the game machine. Therefore, the user of the game machine can play a predetermined game through the Internet service.

Embodiments of the invention include a computer readable medium containing program instructions for performing various computer-implemented operations. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical recording media such as CD-ROMs, DVDs, magnetic-optical media such as floppy disks, and ROM, RAM, flash memory, and the like. Hardware devices specifically configured to store and execute the same program instructions are included. The medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

While specific embodiments of the present invention have been described so far, various modifications are possible without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by those equivalent to the scope of the claims.

According to the present invention, a small network can be established through a communication terminal such as a mobile phone so that an Internet service can be provided while on the go.

Claims (8)

In the operation method of a communication terminal for implementing a small network system, Maintaining at least one local area communication module, wherein the local area communication module is any one of an ultra wideband (UWB) communication module, a power line communication (PLC) communication module, a Bluetooth module, or a wireless LAN (WLAN) communication module; Receiving an IP address for internet access from a predetermined communication company system; Allocating a local IP address corresponding to the IP address to a second communication terminal located at a communication distance from the short range communication module, wherein the second communication terminal maintains the short range communication module; And Collecting a predetermined data transmission request from the second communication terminal and transmitting the predetermined data transmission request to the communication company system, and transmitting the data to the second communication terminal when receiving the predetermined data from the communication company system. Network implementation method using a communication terminal comprising a. The method of claim 1, The short range communication module further includes a network address translation (NAT) module, And processing the IP address allocated from the communication company system into a plurality of private IP addresses through the NAT module and assigning the IP address to the second communication terminal. The method of claim 1, The short range communication module further includes a firewall module, The communication terminal is a network implementation method using a communication terminal, characterized in that for controlling the data transmission and reception according to the firewall module. The method of claim 1, The short range communication module further includes a Dynamic Host Configuration Protocol (DHCP) module, And assigning an IP address allocated from the communication company system to the second communication terminal currently connected to the short range communication module. The method of claim 1, The small network system is an automobile, And the communication terminal uses a cable means installed in the vehicle as a backbone network for PLC communication. In the communication terminal for implementing a small network system, Short-range communication module for performing short-range communication with a predetermined second communication terminal through the wired or wireless communication, wherein the short-range communication module is a UWB (Ultra Wideband) communication module, a PLC (Power Line Communication) communication module, a Bluetooth module, or a WLAN (Wireless LAN) A communication module of any one of the communication modules; An IP address receiving unit for allocating an IP address for internet access from a predetermined communication company system; An IP address distribution unit for distributing a local IP address corresponding to the IP address to a second predetermined communication terminal located at a communication distance from the short range communication module, wherein the second communication terminal maintains the short range communication module; And A data communication unit which collects a predetermined data transmission request from the second communication terminal and transmits it to the communication company system or receives and transmits predetermined data from the communication company system to the second communication terminal. Communication terminal comprising a. The method of claim 6, And the IP address distribution unit converts the IP address allocated from the communication company system into a private IP address and distributes the IP address to the second communication terminal. The method of claim 6, And the IP address distribution unit distributes a predetermined IP address to the second communication terminal when a communication channel with the second communication terminal is established.

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