KR100923391B1 - Inter-network connection relay device and method for different kind of networks - Google Patents

Abstract

The present invention relates to a heterogeneous network access relay device and a method thereof, wherein a public IP address is converted into a private IP address by accessing a corresponding network access authentication server according to a heterogeneous network access request from a pre-registered user terminal. The present invention provides a heterogeneous network access relay apparatus and method for relaying data through a protocol conversion between the user terminal and the corresponding network by transferring the information to the user terminal.

To this end, the present invention is a heterogeneous network connection relay apparatus, comprising: network connection means for accessing a wireless network and receiving a public IP address; Connection relay control means for converting a public IP address from the network access means into a private IP address and relaying data through a protocol conversion between the terminal access means and the network access means; And the terminal connection means for transferring the private IP address from the connection relay control means to the terminal, and used for a heterogeneous network connection relay.

Heterogeneous Network, Connection Relay, Public IP Address, Private IP Address, Wireless Internet, Mobile Internet, Zigbee, Protocol Conversion

Description

Inter-network connection relay device and method for different kind of networks}

1 is a configuration diagram of an embodiment of a heterogeneous network connection relay apparatus according to the present invention;

2 is a detailed configuration diagram of an embodiment of a connection relay control unit of a heterogeneous network connection relay apparatus according to the present invention;

3 is a flowchart illustrating a heterogeneous network access relay method in a heterogeneous network access relay according to the present invention.

* Explanation of symbols for the main parts of the drawings

11: wireless internet terminal connection unit 12: Zigbee terminal connection unit

13: Wireless Internet Connection 14: Mobile Internet Connection

15: connection relay control unit 21: wireless Internet terminal registration manager

22: Zigbee terminal registration manager

23: Portable Internet to Wireless Internet Protocol Converter

24: Wireless Internet to Zigbee Protocol Converter

25: Portable Internet-ZigBee Protocol Converter

26: IP Address Converter 27: Mobile IP Address Manager

The present invention relates to a heterogeneous network access relay device and a method thereof, and more particularly, to a private IP address assigned to an authorized IP address allocated to a corresponding network access authentication server according to a heterogeneous network access request from a pre-registered user terminal. The present invention relates to a heterogeneous network access relay apparatus and method for connecting to a corresponding network by transferring the data to the user terminal and converting the data through protocol conversion between the user terminal and the corresponding network.

Ubiquitous computing is based on the premise that all computers are connected to each other, invisible to the user, can be used anytime, anywhere, and permeate into real world objects and environments and integrate into everyday life.

In addition, ubiquitous network means an information communication network that anyone can use anytime, anywhere without restriction of communication speed, and can distribute all information or content. It frees users from restrictions and allows them to use ICT services.

Efforts are being made to develop new services utilizing such ubiquitous computing and ubiquitous networks, and the importance of related technologies is increasing. In addition, the future ubiquitous computing environment requires a ubiquitous computing environment that can provide a variety of information services anytime, anywhere by configuring a wireless sensor network with autonomous sensing, low power communication, and thousands of node objects.

Many industries, academia and research are researching and developing the technologies necessary to provide such an environment. Typically, the Zigbee Alliance is based on these technologies. Standardization is underway for the Application Framework and Application Profile.

On the other hand, with the integration of wired and wireless networks, the demand for video services, Internet broadcasting services, and services requiring a large amount of DB access technology is increasing with the increase of personal mobility and the appearance of various application services. Therefore, the next generation mobile communication system can use the 2.3 GHz band to ultimately transmit and receive hundreds of Mbps ultra high-speed data, effectively adapt to time-varying wireless channels, and provide data symmetrically and asymmetrically according to traffic characteristics. There is a demand for high quality, high capacity, high speed multimedia communication technology.

In addition, as an initial model for the next generation of mobile communication, wireless internet services that can provide services to anyone, anywhere, anytime, at a low fee for use are attracting attention. Existing mobile communication systems have a high base station construction cost, high usage rate of the wireless Internet, and a small screen of the terminal, there is a problem such as limitation of the content that can be provided, there is a limit to provide a high-speed wireless Internet.

Wireless LAN (LAN) technology using ISM (Industrial, Scientific, Medical frequencies) bands can be applied to home LANs, but there are limitations in providing public services due to radio interference and narrow coverage. To this end, there is an urgent need for a high-speed portable Internet system capable of providing a seamless service while providing a cell size larger than that of a wireless LAN and supporting low to medium speed mobility.

Mobile Internet (WiBro) is located between the wireless LAN and the mobile communication-based wireless internet, and has the best of both services. It means a service that can access and get various information and contents.

Such a mobile Internet (WiBro) has been realized, but there was a problem that a terminal (for example, a Wi-Fi terminal or a Zigbee terminal) used in another network rather than a mobile Internet-only terminal cannot access the portable Internet.

In addition, a newly released user terminal (for example, a WiBro terminal or a Zigbee terminal) has a problem in that it cannot access the existing wireless Internet (WiFi).

The present invention has been proposed to solve the above problems, in response to a heterogeneous network access request from a pre-registered user terminal, accesses the corresponding network access authentication server, and converts the assigned public IP address into a private IP address and then the user. It is an object of the present invention to provide a heterogeneous network access relay apparatus and method for relaying data through a protocol conversion between the user terminal and the corresponding network by transferring the terminal to a corresponding network.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

The apparatus of the present invention for achieving the above object is a heterogeneous network connection relay apparatus, comprising: network connection means for accessing a wireless network and receiving a public IP address; Connection relay control means for converting a public IP address from the network access means into a private IP address and relaying data through a protocol conversion between the terminal access means and the network access means; And the terminal access means for transferring the private IP address from the access relay control means to the terminal.

On the other hand, the method of the present invention, the heterogeneous network connection relay method in a heterogeneous network connection relay apparatus, comprising: an address translation step of converting an assigned public IP address assigned to a private IP address by connecting to a wireless network and transmitting it to a terminal; And a data relaying step of relaying data through protocol conversion between the terminal and the wireless network. In addition, the method of the present invention further includes the step of managing by matching the newly assigned authorized IP address with the newly assigned authorized IP address when the newly authorized IP address is allocated. In addition, the method of the present invention further includes the step of proceeding to the address translation step according to whether the registration is confirmed by the registration of the terminal.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of an embodiment of a heterogeneous network connection relay apparatus according to the present invention.

As shown in FIG. 1, the heterogeneous network connection relay apparatus according to the present invention notifies the wireless Internet connection unit 13 or the portable Internet connection unit 14 of a connection request from a wireless Internet (WiFi) terminal, and connects the connection relay control unit ( 15) A wireless Internet terminal access point (WiFi Access Point) for delivering a private IP address from the above to the wireless Internet terminal and connecting to a corresponding network (WiFi or WiBro) through a heterogeneous network connection relay device. (11), a connection request from a Zigbee terminal is notified to the wireless Internet connection unit 13 or the portable Internet connection unit 14, and a private IP address from the connection relay control unit 15 is transmitted to the Zigbee terminal to provide a heterogeneous network; Zigbee coordinator 12, wireless Internet terminal connection 11 or jig for connecting to the network (WiFi or portable Internet (WiBro)) via a connection relay From the wireless Internet connection (WiFi Modem) 13, the wireless Internet terminal connection 11 or the Zigbee terminal connection 12 for connecting to the wireless Internet in accordance with the connection request from the terminal connection unit 12 to be assigned a public IP address In accordance with the request for access, the mobile Internet access unit (WiBro Modem) 14 for accessing the mobile Internet to be assigned an authorized IP address, a wireless Internet terminal or ZigBee terminal from the heterogeneous network access request from the terminal, and confirms that the terminal is registered, As the terminal is registered, the wireless internet access unit 13 or the portable internet access unit 14 accesses the network access authentication server, converts the assigned public IP address into a private IP address, and then wireless internet terminal access unit 11. Alternatively, the wireless internet terminal or the Zigbee terminal is transmitted to the corresponding network through the Zigbee terminal connection unit 12 to connect to the corresponding network. A connection relay control unit 15 for relaying data through a protocol conversion between a wireless Internet terminal or a Zigbee terminal and a corresponding network, the wireless Internet terminal connection unit 11, a Zigbee terminal connection unit 12, a wireless Internet connection unit 13, And a main control unit 16 for controlling the power supplied to the portable internet connection unit 14 and the connection relay control unit 15.

Herein, the power controller 16 is a power supply unit (External Power input & Rechargeable Battery) 161, a wireless Internet access unit power controller for controlling the power supply from the power supply unit 161 to the wireless Internet connection 13 (WiFi Modem Power controller) 162, from the power supply unit 161 to the portable Internet connection unit 14, the wireless Internet connection unit power controller (WiBro Modem Power controller) 163, from the power supply unit 161 Connection relay control unit (MCU Power controller) 164 for controlling the power supply to the connection relay control unit 15, ZigBee terminal connection power supply for controlling the power supply from the power supply unit 161 to the Zigbee terminal connection unit 12 A controller (zigbee coordinator power controller) 165, and a wireless Internet terminal access unit for controlling the power supply from the power supply unit 161 to the wireless Internet terminal connection unit 11 And a controller (WiFi AP Power controller) (166). At this time, the power supply unit 161 is a rechargeable battery, and receives and stores power from an external source, and supplies power (nominal voltage) corresponding to the characteristics of each component through each power controller, that is, the components. .

In addition, the Wi-Fi terminal includes a laptop, a personal digital assistant (PDA), a portable multimedia player (PMP), and the like.

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Meanwhile, the process of connecting the wireless internet terminal or the Zigbee terminal to the wireless internet (for example, Nespot) or the portable internet and the data relay process after connecting the wireless relay terminal 15 will be described in more detail.

First, when the wireless internet terminal is connected to the wireless internet, the wireless internet terminal is connected to the wireless internet terminal through the wireless internet terminal from the wireless internet terminal is requested to confirm the registration of the wireless internet terminal.

As a result of the check, as the wireless Internet terminal is registered, the wireless Internet access unit 13 receives an authorized IP address after accessing the wireless Internet access authentication server using an ID / password for wireless internet access through the authentication process. . At this time, if the wireless Internet terminal is not registered, the subsequent access process is not performed.

Thereafter, the assigned public IP address is converted into a private IP address and then transferred to the wireless Internet terminal through the wireless Internet terminal access unit 11.

Through this process, the wireless internet terminal is connected to the wireless internet.

Thereafter, data is relayed between the wireless Internet terminal and the wireless Internet. In this case, since the wireless internet terminal and the wireless internet use the same protocol (for example, protocol 802.11), the wireless internet terminal and the wireless internet relay data immediately without converting the protocol.

Next, when the wireless Internet terminal is connected to the mobile Internet (WiBro), the wireless Internet terminal is connected to the wireless Internet terminal through the wireless Internet terminal connection 11, the mobile Internet terminal is requested to check whether or not the registration.

As a result of the confirmation, as the wireless Internet terminal is registered, after accessing the portable Internet access authentication server using the portable Internet access ID / password through the portable Internet access unit 14 and undergoing an authentication process, the authorized IP address is assigned. . At this time, if the wireless Internet terminal is not registered, the subsequent access process is not performed.

Thereafter, the assigned public IP address is converted into a private IP address and then transferred to the wireless Internet terminal through the wireless Internet terminal access unit 11.

Through this process, the wireless internet terminal is connected to the portable internet.

Thereafter, data is relayed between the wireless Internet terminal and the portable Internet. That is, the protocol 802.16 format data received from the terminal on the portable Internet side through the portable internet access unit 14 is converted into protocol 802.11 format data and transmitted to the corresponding wireless internet terminal through the wireless internet terminal access unit 11. The protocol 802.11 format data received from the wireless internet terminal through the wireless internet terminal access unit 11 is converted into data of the protocol 802.16 format and transmitted to the corresponding terminal on the portable internet side through the portable internet access unit 14.

At this time, when the heterogeneous network access relay device moves due to the characteristics of the portable Internet, the authorized IP address assigned at the time of authentication may be changed due to the change of the access base station. Thus, even if the public IP address is changed, the initial public IP address is maintained in order to normally perform a relay function, that is, in order to remove the confusion with the private IP address and consequence with other terminals. That is, when the access base station is changed, the newly allocated public IP address is managed by matching with the initially assigned public IP address.

Next, when the Zigbee terminal is connected to the wireless Internet, the Zigbee terminal checks whether the Zigbee terminal is registered in response to a request for a wireless Internet connection from the Zigbee terminal through the Zigbee terminal connection unit 12.

As a result of the confirmation, as the Zigbee terminal is registered, the authorized IP address is assigned after accessing the wireless Internet access authentication server using the ID / password for wireless Internet access through the wireless Internet access unit 13 and undergoing an authentication process. At this time, if the Zigbee terminal is not registered, the subsequent access process is not performed.

Thereafter, the assigned public IP address is converted into a private IP address and then transmitted to the Zigbee terminal through the Zigbee terminal connection unit 12.

Through this process, the Zigbee terminal is connected to the wireless Internet.

Thereafter, data is relayed between the Zigbee terminal and the wireless Internet. That is, the protocol 802.11 format data received from the terminal on the wireless Internet side through the wireless Internet access unit 13 is converted into the protocol 802.15.4 format data and transmitted to the corresponding Zigbee terminal through the Zigbee terminal connection unit 12, The protocol 802.15.4 format data received from the Zigbee terminal through the ZigBee terminal access unit 12 is converted into data of the protocol 802.11 format and transmitted to the corresponding terminal on the wireless Internet side through the wireless Internet access unit 13.

Next, when the Zigbee terminal is connected to the WiBro, the Zigbee terminal checks whether the Zigbee terminal is registered as the Zigbee terminal is requested from the Zigbee terminal through the Zigbee terminal connection unit 12.

As a result of the confirmation, as the Zigbee terminal is registered, the IP address is assigned after accessing to the portable Internet access authentication server using the portable Internet access ID / password through the portable internet access unit 14 and performing an authentication process. At this time, if the Zigbee terminal is not registered, the subsequent access process is not performed.

Thereafter, the assigned public IP address is converted into a private IP address and then transmitted to the Zigbee terminal through the Zigbee terminal connection unit 12.

Through this process, the Zigbee terminal is connected to the portable Internet.

Thereafter, data is relayed between the Zigbee terminal and the portable Internet. That is, the protocol 802.16 format data received from the terminal of the portable Internet side through the portable Internet access unit 14 is converted into data of protocol 802.15.4 format and transmitted to the corresponding Zigbee terminal through the Zigbee terminal connection unit 12, The protocol 802.15.4 format data received from the Zigbee terminal through the ZigBee terminal access unit 12 is converted into data of the protocol 802.16 format and transmitted to the corresponding terminal on the portable Internet side through the portable Internet access unit 14.

At this time, when the heterogeneous network access relay device moves due to the characteristics of the portable Internet, the authorized IP address assigned at the time of authentication may be changed due to the change of the access base station. Thus, even if the public IP address is changed, the initial public IP address is maintained in order to normally perform a relay function, that is, in order to remove the confusion with the private IP address and consequence with other terminals. That is, when the access base station is changed, the newly allocated public IP address is managed by matching with the initially assigned public IP address.

2 is a detailed configuration diagram of an embodiment of a connection relay control unit of a heterogeneous network connection relay apparatus according to the present invention.

As shown in FIG. 2, the connection relay control unit of the heterogeneous network connection relay apparatus according to the present invention checks whether or not the wireless Internet terminal is registered and registers the wireless Internet terminal according to the wireless Internet connection unit 13 or the portable Internet connection unit 14. ZigBee terminal registration manager 21 for notifying the ZigBee terminal and the ZigBee terminal registration manager 22 for notifying the wireless Internet access unit 13 or the portable Internet access unit 14 according to the registration of the ZigBee terminal. Converts the protocol 802.16 format data received from the portable internet access unit 14 into the protocol 802.11 format data, and transmits the data to the corresponding wireless internet terminal through the wireless internet terminal connecting unit 11, and transfers the wireless internet terminal connecting unit 11 to the corresponding wireless internet terminal. By converting the protocol 802.11 format data received from the wireless Internet terminal to the protocol 802.16 format data, The portable Internet to wireless Internet protocol converter 23 for transmission to the Internet connection 14, the protocol 802.11 format data received from the wireless Internet connection 13 converts the data of the protocol 802.15.4 format to the Zigbee terminal connection section 12 To transmit to the corresponding Zigbee terminal, and convert the protocol 802.15.4 format data received from the Zigbee terminal through the Zigbee terminal connection unit 12 into data of the protocol 802.11 format for transmission to the wireless Internet access unit 13 Converts the protocol 802.16 format data received from the wireless Internet-ZigBee protocol converter 24 and the portable Internet connection unit 14 into data of protocol 802.15.4 format, and transmits the data to the corresponding Zigbee terminal through the Zigbee terminal connection unit 12, Data of the protocol 802.15.4 format received from the Zigbee terminal through the Zigbee terminal access unit 12 Converts the data into protocol 802.16 format data and transmits the data to the portable Internet access unit 14 through the portable Internet-ZigBee protocol converter 25, the wireless Internet access unit 13, or the mobile IP address manager 27. IP address translator 26 for converting the public IP address received from the IP address into a private IP address and transferring it to the wireless Internet terminal access unit 11 or the Zigbee terminal access unit 12, and newly assigned when the access base station is changed due to movement. The mobile IP address manager 27 includes a mobile IP address manager for matching and managing the received public IP address with the first assigned official IP address.

Here, the Wi-Fi modem 13 connects to the wireless Internet according to a registration notification (signal) from the Wi-Fi terminal registration manager 21 or the Zigbee terminal registration manager 22 and allocates a public IP address. And the data received from the wireless Internet terminal connection unit 11 or the wireless Internet-ZigBee protocol converter 24 is transmitted to the corresponding terminal on the wireless Internet side, and the data received from the terminal on the wireless internet side is transferred to the wireless internet terminal connection unit 11. Or wireless internet to ZigBee protocol converter 24.

In addition, the WiBro Modem 14 connects to the mobile Internet according to a registration notification (signal) from the wireless Internet terminal registration manager 21 or the Zigbee terminal registration manager 22 and allocates an authorized IP address. The data received from the portable Internet-Wireless Internet Protocol Converter 23 or the portable Internet-ZigBee Protocol Converter 25 to the corresponding terminal on the portable Internet side, and the data received from the portable Internet-side terminal on the portable Internet-side. The wireless Internet protocol converter 23 or the portable Internet-ZigBee protocol converter 25.

FIG. 3 is a flowchart illustrating a heterogeneous network connection relaying method in a heterogeneous network connection relay apparatus according to the present invention. Since the specific embodiments are as described above, the heterogeneous network connection relay in the heterogeneous network connection relay apparatus will be described herein. Only the operating procedure for the method will be described.

First, it is checked whether the user terminal is registered according to a heterogeneous network connection request from a user terminal (a wireless Internet terminal or a Zigbee terminal) (301).

Thereafter, as the user terminal is registered, the public IP address is assigned to the corresponding network access authentication server (302).

Thereafter, the assigned public IP address is converted into a private IP address (303).

Thereafter, the converted private IP address is transferred to the user terminal and connected to the corresponding network (304).

Thereafter, data is relayed through protocol conversion between the user terminal and the corresponding network (305).

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in more detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

The present invention as described above, in accordance with the heterogeneous network access request from the user terminal registered in advance, access the corresponding network access authentication server, converts the assigned public IP address into a private IP address and delivers it to the user terminal. By connecting to the network and relaying data through protocol conversion between the user terminal and the network, the user terminal can be connected to the heterogeneous network.

Claims (22)

In the heterogeneous network connection relay device, Network access means for accessing a wireless network and receiving a public IP address; Connection relay control means for converting a public IP address from the network access means into a private IP address and relaying data through a protocol conversion between the terminal access means and the network access means; And The terminal connection means for transferring the private IP address from the connection relay control means to the terminal Heterogeneous network connection relay device comprising a. The method of claim 1, The connection relay control means, Protocol conversion means for relaying data by converting heterogeneous protocols between the network connection means and the terminal connection means; And IP address converting means for converting the public IP address received from the network access means into a private IP address and transmitting it to the terminal access means Heterogeneous network connection relay device comprising a. The method of claim 2, The connection relay control means, A mobile IP address management means for managing the newly assigned public IP address by matching the newly assigned public IP address with a newly assigned public IP address Heterogeneous network connection relay device further comprising. The method of claim 2, The connection relay control means, Terminal registration management means for confirming whether or not the terminal is registered and connecting the terminal to the wireless network if it is registered, and disconnecting the network connection of the terminal if not registered Heterogeneous network connection relay device further comprising. The method of claim 4, wherein The terminal registration management means, A wireless internet terminal registration manager for checking whether a wireless internet terminal is registered and connecting the wireless internet terminal to the wireless network if it is registered, and for disconnecting the network connection of the wireless internet terminal if not registered; And A Zigbee terminal registration manager for checking whether a Zigbee terminal is registered and connecting the Zigbee terminal to the wireless network if it is registered, and for disconnecting the network connection of the Zigbee terminal if not registered. Heterogeneous network connection relay device comprising a. The method according to any one of claims 2 to 4, The protocol conversion means, Converts the protocol 802.16 format data received from the network access means into protocol 802.11 format data and transmits the data to the terminal access means, and converts the protocol 802.11 format data received from the terminal access means into data of the protocol 802.16 format Heterogeneous network connection relay device for transmitting to the network connection means. The method according to any one of claims 2 to 4, The protocol conversion means, The protocol 802.11 format data received from the network access means is converted into data of protocol 802.15.4 format and transmitted to the terminal access means, and the protocol 802.15.4 format data received from the terminal access means is transferred to the protocol 802.11 format data. A heterogeneous network connection relay apparatus for converting the data into the network connection means. The method according to any one of claims 2 to 4, The protocol conversion means, The protocol 802.16 format data received from the network access means is converted into the protocol 802.15.4 format data and transmitted to the terminal access means, and the protocol 802.15.4 format data received from the terminal access means is transferred to the protocol 802.16 format. A heterogeneous network connection relay apparatus for converting the data into the network connection means. The method according to any one of claims 1 to 5, Power control means for controlling power supplied to said network connection means, said connection relay control means, and said terminal connection means; Heterogeneous network connection relay device further comprising. The method of claim 9, The power control means, And a network connection means for supplying rated voltages corresponding to the network connection means, the connection relay control means, and the terminal connection means, respectively. In the heterogeneous network connection relay device, A mobile Internet access means for accessing a mobile Internet (WiBro) to receive a public IP address; Connection relay control means for converting the public IP address from the portable Internet access means into a private IP address and relaying data through a protocol conversion between the wireless Internet terminal access means and the portable Internet access means; And The wireless internet terminal access means for transferring the private IP address from the connection relay control means to the wireless internet terminal Heterogeneous network connection relay device comprising a. The method of claim 11, The connection relay control means, The protocol 802.16 format data received from the portable Internet access means is converted into protocol 802.11 format data and transmitted to the wireless Internet terminal access means, and the protocol 802.11 format data received from the wireless Internet terminal access means is transferred to the protocol 802.16 format. Protocol conversion means for converting the data into data and transmitting the data to the portable Internet access means; And IP address converting means for converting the public IP address received from the portable Internet access means into a private IP address and transmitting it to the wireless Internet terminal access means Heterogeneous network connection relay device comprising a. The method of claim 12, The connection relay control means, A mobile IP address management means for managing the newly assigned public IP address by matching the newly assigned public IP address with a newly assigned public IP address Heterogeneous network connection relay device further comprising. The method according to claim 12 or 13, The connection relay control means, Terminal registration management means for confirming whether or not the wireless Internet terminal is registered and connecting the wireless Internet terminal to the portable Internet (WiBro) if not registered, and disconnecting the network connection of the wireless Internet terminal if not registered. Heterogeneous network connection relay device further comprising. The method according to any one of claims 11 to 13, Power control means for controlling power supplied to the portable Internet access means, the connection relay control means, and the wireless Internet terminal access means; Heterogeneous network connection relay device further comprising. The method of claim 15, The power control means, And a heterogeneous network connection relay device for supplying a rated voltage respectively corresponding to said portable Internet access means, said connection relay control means, and said wireless Internet terminal access means. In the heterogeneous network connection relay method in a heterogeneous network connection relay device, An address translation step of converting the allocated authorized IP address into a private IP address and accessing the wireless network to the terminal; And Data relay step of relaying data through protocol conversion between the terminal and the wireless network Heterogeneous network connection relay method comprising a. The method of claim 17, When a newly authorized IP address is assigned, managing the newly assigned official IP address by matching it with the initially assigned official IP address Heterogeneous network connection relay method further comprising. The method of claim 17, Checking whether the terminal is registered, connecting the terminal to the wireless network if it is registered, and blocking network connection of the terminal if not registered Heterogeneous network connection relay method further comprising. The method according to any one of claims 17 to 19, The data relay step, The protocol 802.16 format data received from the network access means is converted into the protocol 802.11 format data and transmitted to the terminal access means, and the protocol 802.11 format data received from the terminal access means is converted into the data of protocol 802.16 format. Heterogeneous network connection relay method for transmitting to the connection means. The method according to any one of claims 17 to 19, The data relay step, The protocol 802.11 format data received from the network access means is converted into the protocol 802.15.4 format data and transmitted to the terminal access means, and the protocol 802.15.4 format data received from the terminal access means is converted into the protocol 802.11 format data. The heterogeneous network connection relay method for converting and transmitting to the network connection means. The method according to any one of claims 17 to 19, The data relay step, Converts the protocol 802.16 format data received from the network access means to the protocol 802.15.4 format data and transmits the data to the terminal access means, and the protocol 802.15.4 format data received from the terminal access means is converted into the protocol 802.16 format data. The heterogeneous network connection relay method for converting and transmitting to the network connection means.

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