KR100923392B1 - Heterogeneous network connection relay - Google Patents

Abstract

The present invention relates to a heterogeneous network access relay apparatus, and 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 terminal. The present invention provides a heterogeneous network access relay apparatus for connecting to a corresponding network and relaying data through protocol conversion between the user terminal and the corresponding network.

To this end, the present invention is a heterogeneous network connection relay apparatus, comprising: a portable Internet access means for accessing a portable Internet (WiBro) to receive an authorized 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 allowing the wireless Internet terminal to be connected according to a heterogeneous network connection request using a password (PW) from the wireless Internet terminal, and transmitting the private IP address from the connection relay control unit to the wireless Internet terminal. Connection means.

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

Description

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

The present invention relates to a heterogeneous network access relay device, and more particularly, in response to a heterogeneous network access request from a pre-registered user terminal, accessing the corresponding network access authentication server converts an authorized IP address into a private IP address. The present invention relates to a heterogeneous network access relay device for transmitting data to the user terminal and accessing the network, and relaying data through protocol conversion between the user terminal and the 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 and communication network that can be used by anyone, anytime, anywhere without restriction of communication speed, and can distribute all information or content, and by implementation of this, many existing information communication networks or services had The user can freely use the information and communication service without any limitations.

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).

Therefore, at present, there is a problem as described above, it is a problem of the present invention to solve this problem.

Therefore, in accordance with the heterogeneous network access request from a pre-registered user terminal, the present invention accesses the corresponding network access authentication server, converts the assigned public IP address into a private IP address, and delivers it to the user terminal to access the corresponding network. Another object of the present invention is to provide a heterogeneous network access relay apparatus for relaying data through protocol conversion between the user terminal and a corresponding network.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned above 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.

In accordance with another aspect of the present invention, there is provided a heterogeneous network connection relay apparatus, comprising: a portable Internet access means for accessing a portable Internet (WiBro) to receive a public IP address; Connection relay control means for converting a public IP address from the portable Internet access means into a private IP address and relaying data through a protocol conversion between a wireless Internet terminal access means and the portable Internet access means; And allowing the wireless Internet terminal to be connected according to a heterogeneous network connection request using a password (PW) from the wireless Internet terminal, and transmitting the private IP address from the connection relay control unit to the wireless Internet terminal. Connection means.

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.

The above objects, features, and advantages will become more apparent from the detailed description given hereinafter with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention pertains may share the technical idea of the present invention. It will be easy to implement. 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, Zigbee terminal access unit 12 transmits to the corresponding wireless Internet terminal or Zigbee terminal 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.

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 connection unit 11 receives a request for access to the mobile Internet from the wireless Internet terminal through the wireless Internet terminal is registered or not.

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. In this way, 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, for example, to reconvert the private IP address and confusion 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 according to the request of the ZigBee terminal 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. In this way, 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, for example, to reconvert the private IP address and confusion 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. 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 access unit 11, and transmits the wireless internet terminal access unit 11 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 The portable Internet connection unit through the portable Internet-ZigBee protocol converter 25, the wireless Internet connection unit 13, or the mobile IP address manager 27 for converting the data into a protocol 802.16 format data to be transferred to the portable Internet connection unit 14. 14) the IP address converter 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 connection unit 11 or the Zigbee terminal connection unit 12; It includes a mobile IP address manager 27 for matching and managing the assigned official IP address and the first assigned official IP address.

Here, the Wi-Fi terminal may request a heterogeneous network connection using a password (PW), and at this time, a known encryption scheme (for example, WPA or IEEE 802.11i known in IEEE 802.11) used in the wireless Internet (WiFi). A password (PW) can be encrypted using a known WEP based on a cryptographic standard.

In addition, the wireless Internet access unit (WiFi Modem) 13 is connected to the wireless Internet according to the registration notification (signal) from the wireless Internet terminal registration manager 21 or the Zigbee terminal registration manager 22 to be assigned a public IP address The wireless internet terminal access unit 11 transmits data received from the wireless internet-ZigBee protocol converter 24 to the corresponding terminal on the wireless internet side, and transmits the data received from the wireless internet terminal on the wireless internet terminal connection unit 11. Or to a wireless Internet-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 terminal accesses the corresponding network access authentication server and receives a public IP address (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).

On the other hand, the method of the present invention as described above can be written in a computer program. And the code and code segments constituting the program can be easily inferred by a computer programmer in the art. In addition, the written program is stored in a computer-readable recording medium (information storage medium), and read and executed by a computer to implement the method of the present invention. The recording medium may include any type of computer readable recording medium.

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 can be used to connect a wireless Internet (WiFi) terminal to a heterogeneous network such as a portable Internet (WiBro).

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

Claims (8)

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 for allowing access of the wireless Internet terminal according to a heterogeneous network connection request using a password (PW) from the wireless Internet terminal and transferring the private IP address from the connection relay control means to the wireless Internet terminal. Way Heterogeneous network connection relay device comprising a. The method of claim 1, The password (PW), Heterogeneous network access relay characterized in that encrypted by the WPA (Wi-Fi Protected Access) method. The method of claim 1, The password (PW), Heterogeneous network access relay characterized in that encrypted by WEP (Wired Equivalent Privacy). The method of claim 1, 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 4, wherein 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. The method according to any one of claims 1 to 5, 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 6, 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 6, The wireless Internet terminal access means, A wireless Internet terminal connection unit for receiving a request for " heterogeneous network connection using a password (PW) " from the wireless Internet terminal and transferring a private IP address from the connection relay control means to the wireless Internet terminal; And The wireless Internet terminal is checked for registration according to a heterogeneous network connection request from the wireless Internet terminal. If the wireless internet terminal is registered, the wireless internet terminal is connected to the mobile internet (WiBro). Wireless Internet terminal registration manager to block network access Heterogeneous network connection relay device comprising a.

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