KR100749525B1 - Wireless Machine to Machine Terminal for Moving Wireless Internet And the Control Method Thereof - Google Patents

Abstract

The present invention provides a built-in access point so that a plurality of portable computer terminals can simultaneously access a wireless LAN card, and a plurality of users do not have a separate CDMA modem by allowing a user to access the access point and a mobile communication network. The present invention relates to a terminal device for relaying a wireless Internet service and a control method thereof, capable of providing stable Internet service regardless of a place.

The present invention provides a power supply circuit for supplying a variety of power to the entire circuit; An access point for connecting a wireless LAN card and a short range wireless network of a portable computer terminal; An Ethernet interface unit for a wired network connection with an external hub or switch or a wired PC; A mobile communication module integrated with a mobile communication technology capable of transmitting and receiving wireless data over a long distance, which is a public network; A network SoC (System On Chip) for operating various network protocols and embedded OSs that relay IP allocation and data between the access point and the Ethernet interface unit and the mobile communication module, and stores the embedded OS and various application programs. It includes memory.

Wireless, Internet, Relay, Ethernet, Access Point, Mobile Network

Description

Terminal device for wireless internet service relay and control method {Wireless Machine to Machine Terminal for Moving Wireless Internet And the Control Method Thereof}

1 is a view for explaining the advantages and disadvantages of a wireless Internet service by a hotspot method using a general WLAN card and an access point;

2 is a view for explaining the advantages and disadvantages of a wireless Internet service using a CDMA modem and a mobile communication network;

3 is a view for explaining the advantages and disadvantages of the wireless Internet service relay terminal device of the present invention;

4 is a block diagram showing an internal functional configuration of a terminal apparatus for relaying a wireless Internet service of the present invention;

5 is a block diagram showing the internal functional configuration of the SoC in FIG.

6 is a view for explaining a wireless Internet service method through an access point in a wireless Internet service relay terminal of the present invention;

7 is a view for explaining a wireless Internet service method through a wired Ethernet port in a wireless Internet service relay terminal device of the present invention.

*** Explanation of symbols for the main parts of the drawing ***

10: vehicle, 20: laptop computer,

30: PDA, 100: relay terminal device,

110: network SoC, 120: power circuit section,

122: power connector, 124: protection circuit;

126: multi-power generation unit, 130: Ethernet interface unit,

132: RJ-45 Ethernet port, 134: Ethernet PHY / MAC,

140: serial interface unit, 142: DSUB,

144: RS232 line driver, 150: access point,

160: memory, 162: EEPROM,

164: flash memory, 166: SDRAM,

170: mobile communication module, 180: status display unit,

182: LED, 184: Buzzer

The present invention relates to a terminal apparatus for relaying a wireless Internet service and a method of controlling the same, and in particular, by using a hotspot and a mobile communication network together, a wireless Internet can be enjoyed for a plurality of users regardless of a place or a mobile. The present invention relates to a terminal for service relay and a control method thereof.

Since 1998, with the expansion of broadband Internet service and mobile phone, there is a demand to use Internet service regardless of time and place. In particular, the proliferation of portable computer terminals such as notebook computers and personal digital assistants (PDAs) is increasing the flexibility of accessing the Internet regardless of the user's location or the need for high-speed Internet services considering mobility. The portable Internet, which integrates wireless networks and the Internet and connects to the Internet anytime, anywhere, is emerging in the global telecommunications industry as a new engine for overcoming the limitations of previous communication systems and preparing for the saturation of the high-speed internet and mobile phone markets. It is becoming.

On the other hand, there are a variety of technologies related to such wireless Internet, but the main technologies can be classified into three types. The first is a technology for providing a wireless Internet service through a wireless LAN card and an access point (AP). FIG. 1 illustrates the advantages and disadvantages of the wireless Internet service by a hot spot method using a general wireless LAN card and an access point. It is a figure for demonstrating. As shown in FIG. 1, according to a wireless Internet service using a hotspot method, hotspots are installed at predetermined distances in an access point (AP # 1, AP # 2, AP # 3, ..., AP # n) in a predetermined area. A hot spot section is created, and a wireless LAN method is used between a plurality of portable computer terminals and an access point in a hot spot section, while an internet service is provided using a wired LAN method outside the hot spot section.

In this case, there is an advantage that high-speed transmission is possible, the cost of the access point is low, the installation is easy, and the installation cost per unit is low. However, since the hotspot radius is within 100-200m distance, this requires a very large number of access points to support wide-area Internet service, which entails enormous installation costs and provides hand-off capability between access points. There is a disadvantage that it is difficult to use while moving.

Second is a technology for providing a wireless Internet service based on a CDMA modem and a mobile communication network, which is a public network. FIG. 2 is a view for explaining the advantages and disadvantages of the wireless Internet service using a CDMA modem and a mobile communication network. According to the wireless Internet service through the mobile communication network as shown in Figure 2, compared to the hotspot method shown in Figure 1, each base station (BS # 1, BS # 2, BS # 3, ..., BS #) n) This network structure covers a range within a 10km radius of the cell, enabling wide-area Internet service covering the whole country, and supporting the hand-off function between cells so that the connection can be maintained even during high-speed movement. have.

However, the speed is somewhat slower than the conventional hotspot method, and from the user's point of view, it is inevitably configured as one-to-one communication. Therefore, it is impossible to use a terminal without a CDMA modem and uses various information and services such as Internet contents. The disadvantage is that the cost of payment is higher than that of the access point method.

The third is a mobile Internet service technology using 2.3GHz band developed by domestic technology, which is being developed jointly by a number of domestic telecommunication companies such as ETRI, Samsung Electronics, KT, Hanaro Telecom, and SKT. According to the present invention, although the transmission speed is lower than that of the hotspot method, it supports the hand-off function and is cheaper than the service based on the mobile communication, but it is not commercialized because the development is not completed yet.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and includes a built-in access point so that a plurality of portable computer terminals can simultaneously access a wireless LAN card, and can access the access point and the outside using a mobile communication network that is a public network. Accordingly, an object of the present invention is to provide a terminal apparatus for relaying a wireless Internet service and a method of controlling the same, which enable a plurality of users to receive a stable Internet service regardless of a location without having a separate CDMA modem.

In accordance with one aspect of the present invention, there is provided a terminal apparatus for relaying a wireless Internet service, including: a power circuit unit supplying various powers to an entire circuit; An Ethernet interface unit for a wired network connection with an external hub or switch or a wired PC; A mobile communication module integrated with a mobile communication technology capable of transmitting and receiving wireless data over a long distance, which is a public network; It includes a network SoC (System On Chip) for operating various network protocols and embedded OS to relay IP allocation and data between the Ethernet interface unit and the mobile communication module and a memory for storing the embedded OS and various application programs. It is done by

In accordance with another aspect of the present invention, there is provided a terminal apparatus for relaying a wireless Internet service, including: a power circuit unit supplying various powers to an entire circuit; An access point for connecting a wireless LAN card and a short range wireless network of a portable computer terminal; A mobile communication module integrated with a mobile communication technology capable of transmitting and receiving wireless data over a long distance, which is a public network; It includes a network SoC (System On Chip) for operating various network protocols and embedded OS to relay IP allocation and data between the access point and the mobile communication module and a memory for storing the embedded OS and various application programs. .

According to another feature of the present invention, a wireless LAN card of the portable computer terminal and an access point for a short-range wireless network connection; Mobile communication module integrated with mobile communication technology capable of transmitting and receiving wireless data over a long distance, public network, and SoC for network operating various network protocols and embedded OS for relaying IP allocation and data between the access point and the mobile communication module. In the terminal device for a wireless Internet service relay including a System On Chip, the access point and the mobile communication module are performed by the embedded OS, and (a) a driver suitable for the access point and the mobile communication module is provided. Recognizing; (b) an IP port (IP W-IP0) allocated to a wireless connection port (W-Ap0) for the access point and a wireless LAN accessing the access point through the driver of the access point recognized in step (a). Generating a; (c) generating a public network connection port (PPP0) and the public network IP port (P-IP0) for the mobile communication module through a driver of the mobile communication module recognized in step (a); and (d) Provided is a control method of a terminal apparatus for relaying a wireless internet service, comprising converting data input / output from an access point and the mobile communication module into a protocol and IP suitable for a counterpart, and then transmitting the data through the respective ports.

According to another feature of the invention, the Ethernet interface for connecting to a wired network with an external hub or switch or wired PC; Mobile communication module integrated with mobile communication technology capable of transmitting and receiving wireless data over a long distance, public network, and network for operating various network protocols and embedded OS for relaying IP allocation and data between the Ethernet interface unit and the mobile communication module. In the terminal for a wireless Internet service relay including a SoC (System On Chip) is performed by the embedded OS for the access point and the mobile communication module, (a) a driver suitable for the Ethernet interface and the mobile communication module Recognizing; (b) generating a wired connection port (Eth0) for the Ethernet interface and an IP port (E-IP0) assigned to the wired LAN connected to the Ethernet interface through the driver of the Ethernet interface recognized in step (a); (c) generating a public network connection port (PPP0) and the public network IP port (P-IP0) for the mobile communication module through a driver of the mobile communication module recognized in step (a); and (d) Provided is a control method of a wireless internet service relay terminal device comprising converting data input / output from an Ethernet interface and the mobile communication module into a protocol and IP suitable for a counterpart, and then transmitting the data through each port. .

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to a wireless Internet service relay terminal device and a control method according to an embodiment of the present invention.

3 is a view for explaining the advantages and disadvantages of the wireless Internet service relay terminal device of the present invention. As shown in FIG. 3, the terminal apparatus for relaying wireless Internet services according to the present invention (hereinafter referred to simply as a relay terminal apparatus) 100 includes a portable computer terminal of a plurality of users, that is, a notebook computer 20 or a PDA 30. ) Access points are built in so that they can be connected simultaneously via a wireless LAN card, which accesses the base station of the mobile communication network via a suitable mobile modem (e.g., a CDMA modem (domestic), a GSM (GPRG) modem or a PCS modem). BS # 1, BS # 2, ..., BS3N) to relay the wireless Internet service. In this case, if one or several relay terminal devices 100 are installed in the vehicle 10, for example, a bus and an urban train or a high-speed train, depending on the number of passengers in the length or the number of cars, the vehicle moves at high speed. On the other hand, it is possible to provide a wireless Internet service to a large number of passengers. In this case, each base station (BS # 1, BS # 2, ..., BS3N) has a network configuration covering a section within a 10km cell radius, and also supports the hand-off function between each base station cell, Stay connected while on the go. Of course, by embedding a wired Ethernet port in the relay terminal device of the present invention there is an advantage that can support the Internet service through the mobile communication network in the area that is not equipped with a wired infrastructure, such as a wired Internet network.

4 is a block diagram showing an internal functional configuration of a terminal apparatus for relaying a wireless Internet service of the present invention. As shown in Figure 4, the relay terminal device of the present invention is an Ethernet interface for a wired network connection with a power circuit unit 120, a hub, a switch, or a wired PC, etc., which largely supplies various power to the entire circuit to the relay terminal device. The unit 130, an access point 140 for connecting a wireless LAN card and a short-range wireless network of a portable computer terminal, a universal serial interface 140 for connecting an external device or monitoring internal components, various network protocols, and an embedded OS System On Chip (hereinafter simply referred to as 'SoC') 110 for operating an Operating System, a memory 160 for storing an operating system and various application programs, and transmitting and receiving wireless data over a long distance, which is a public network. Mobile communication module 170 (CDMA / GSM (GPRS) / PCS modem) in which the mobile communication technology is integrated (hereinafter referred to as a CDMA modem applied in Korea) And a status display unit 180 to visually display various states of the external antenna 172 and the relay terminal apparatus 100 accompanying the same.

In the above-described configuration, the power circuit unit 120 has a positive polarity and a negative polarity with respect to the external power input through the power connector 122 and the external power input through the power connector 122 that can be connected to the external power. When connected, a protection circuit section 124 consisting of a reverse voltage protection circuit that prevents damage to the entire circuit and an anti-static circuit that prevents damage to the entire circuit against sparks or static electricity that may occur when power is connected, and each of the built-in system blocks It may include a multi-power generator 126 for generating and supplying a variety of power required.

The Ethernet interface unit 130 is an RJ-45 Ethernet port 132 that can be wired via an external shielded twisted pair (UTP) cable to an external PC, a hub, a switch, and the like. Ethernet PHY / MAC (PHysical Layer / Media Access Control) circuit 134 that supports the Carrier Sense Multiple Access / Collision Detection (PIC) scheme and enables various network communications. May be installed on or embedded in the SoC 110. Universal serial interface unit 140 is a data port for transmitting and receiving data with an external device / device or PC having a serial interface, a console data port for checking the status of the processor, the status of the mobile communication module 170 It can be configured as a status port, a full universal asynchronous receiver / transmitter (UART) port for hardware flow control, and a DSUB connector 142 and a number of RS-serial serial drivers for attaching and detaching a general serial cable. 232 line driver 144 may be connected.

The access point 150 is a wireless AP function that can be connected to a portable computer terminal equipped with a plurality of wireless LAN cards to form a network wirelessly. The access point 150 is used when a short range wireless network is connected. CSAR / CA (Carrier Sense Multiple Access / Collision Avoidance) Wireless access method uses OFDM transmission and reception in the 802.11b / g and 5 [GHz] bands where the data transmission / reception frequency band is 2.4 [GHz] and DSSS / OFDM (Direct Sequence Speread Spectrum / Orthogonal Erequency Division Multiplexing) transmission method is used. 802.11a wireless standard can be used at the same time, high speed transmission rate of up to 54Mbps, IEEE802.1x / RADIUS for user authentication and billing, high power RF power of up to 18 [dB] and Dynamic WEP (Wired) Equivalent Privacy key can be used.

SoCs for networks include many system blocks such as 32-bit processor CPU and memory controllers, 10/100 Ethernet controllers, PCI host / agent controllers, card bus controllers such as PCMCIA, USB host / slave functions, and direct access memory (DMA) controllers. It is desirable to implement this as an embedded network SoC.

In addition, the CPU, Memory, Interrupts, Serial, etc. of the network SoC initializes a number of peripheral devices built in the relay terminal 100 for the mobile wireless Internet, and the kernel and RAM through TFTP (Trivial File Transfer Protocol). It is equipped with a built-in boot loader (BIOS) that downloads a ramdisk and automatically updates the ramdisk to flash memory, which will be described later. NAPT that can deliver Network Address Port for accessing up to 253 users on the upper part of this boot loader, SNMP (Simple) which can manage the status of device or change setting value through necessary information of network device Network Management Protocol (DHCP), DHCP (Dynamic Host Configuration) that automatically sets and assigns (generates) each IP address, for example, an IP assigned to an access point 150 or a wired Ethernet 130 and a mobile communication module 170. Protocol (FTP), file transfer between computers (TFTP), Domain Name Server (DNS) with CHAP / PAP (Challange Handshake) for authentication protocols that maintain and provide data about domain names and their corresponding addresses. Each network protocol, such as Point to Point Protocol (PPP) that enables Authentication Protocol / Password Authentication Protocol, is compatible with each other. Protocol conversion (converting) function to convert to protocol and virtual private network (VPN) through-pass, Wireless LAN Access Control, Port forwarding, Web server, Access point 150, Wired Ethernet 130, and various mobile communication modules ( An embedded operating system, such as Linux, is included that includes support for applications such as drivers.

FIG. 5 is a block diagram illustrating an internal functional configuration of a SoC in FIG. 4. As shown in FIG. 5, the network SoC 110 according to the present invention will be described in detail in terms of hardware. As a CPU, a 32-bit processor and a 32-bit and 16-bit processor may be used, and an instruction cache and data cache memory may be used. You can use the built-in. The built-in Memory Management Unit (MMU) supports embedded operating systems such as Windows CE and Linux, and provides easy memory connectivity. The system bus is an entire system bus for efficiently connecting each system block embedded in the network SoC 110.

The Interrupt Controller has a 32-bit Interrupt Service Routine (ISR) that allows you to move to an immediate processing location when an external interrupt occurs.

5 channel Ethernet is responsible for the ability to send and receive network data by wire using the PHY and MAC (134) to the internal or external. PCI (PC Interface) has a 16-bit parallel interface, and can be connected to a device having a PCI interface such as a flash memory or a CF card to be described later and the internal DMA to perform high-speed data transfer. UART can be connected to external serial communication device for general purpose serial communication, and built-in 16-bit FIFO enables high-speed data transmission and reception. DMA connects to the internal system bus and an external interface, enabling the transfer of large amounts of data, such as Universal Serial Interface (USB) transfers, without CPU intervention. Joint Test Access Group (JTAG) provides debugging features to verify that the device is operating properly when mounted on the board. The USB 1.1 / 2.0 host can connect to various USB devices such as hard disks, keyboards, modems and cameras that support USB 1.1 or 2.0 for high-speed data transmission and reception.

The External Memory Interface (EMC) makes it easy to connect external 32-bit or 16-bit SDRAMs and is compatible with Intel's PC133. General Purpose Input / Output (GPIO) is a general I / O that can be used for external control signals, including interrupts. The clock generator receives a system clock from an external oscillator and multiplies or divides clocks required for an internal system through a phase loop lock (PLL) or a divider.

4, the memory 160 may be largely comprised of an EEPROM 162, a flash memory 164, and an SDRAM 166, of which the EEPROM 162 is used to store the boot loader described above. The memory 164 is used to simultaneously store a boot loader, an embedded OS, and multiple applications, and to read stored data when power is supplied again, and the SDRAM 166 is used for embedded OS and applications. It can be used for temporary data storage for programs, memory mapped I / O peripherals.

The mobile communication module 170 with a built-in wireless data mobile communication function of a remote site can use a plurality of modules by applying a detachable method to enable the use of a CDMA modem, a GSM (GPRS) modem or a PCS modem for each country. Doing. In addition, wired network data connected through the RJ-45 Ethernet port 132 or serial data connected to the DSUB connector 142, which is a universal serial interface, wireless network data connected via the access point 150, or SoC 110 for the network. Send / receive the processed data through). The mobile communication module 170 is a key technology for transmitting short-range network data as long-distance data, and can be stably connected to the Internet during low / medium / high speed movement, and can be hand-off function so that it can be mounted on the mobile means 10 wirelessly. Enable internet service.

Finally, the status display unit 180 may include an LED display 182 and a buzzer 184 for monitoring a connection state, a data transmission / reception state, a power supply state, and the like of the mobile communication module 170. The antenna 172 may be connected through a general-purpose SMA connector, and when the internal impedance matching circuit is modified according to the mobile communication module 170, the antenna 172 may be mounted and used.

FIG. 6 is a diagram illustrating a method for wireless internet service through an access point in a wireless internet service relay terminal of the present invention, and unless otherwise described, the embedded OS 130 is mainly performed. As shown in FIG. 6, first, a driver corresponding to an installed access point (AP) 150 is activated (step S10) to activate a network connecting through an access point (AP) 150 which is a short range wireless network. In addition, the mobile communication module 170 also recognizes a suitable driver (step S12). Steps S10 and S12 may be performed first or at the same time. Next, a W-AP0 connection port is generated through the driver of the recognized access point 150 (step S30), and the corresponding wireless connection IP W-IP0 (wireless IP number 0) is assigned (step S50). . At the same time or before or after this, the mobile communication module 170 is also given a CDMA connection port PPP0 (step S32), and then an attempt is made to connect to the corresponding Internet service provider (ISP) (step S40). IP0) is allocated (step S52).

After this process, W-AP0, the wireless connection port through the access point (AP) 150, W-IP0 for the access point and public network communication connection through the CDMA and P-IP0 for the public network are created, and the embedded OS 130 recognizes each connection as a virtual port. For example, the connection with the access point (AP) 150 is set to W-AP0 and PPP0 ports, the wireless IP is set to W-IP0, and the public network IP is set to P-IP0. As a difference from the wired network to be described later, when the portable computer terminals 20 and 30 increase, a generator for automatically generating an IP is added to the wireless LAN card of the portable computer terminals 20 and 30, which is added to the portable computer. IP can be assigned to the wireless LAN card of the terminal 20, 30 can be easily expanded.

In this state, when data is input / output (steps S70 and S72) from the access point (AP) 150 or the mobile communication module 170, the embedded OS 130 uses different protocols through the W-AP0 and PPP0 ports. Data is transmitted / received (step S90) by the protocol converter function for conversion (step S80), the IP generator for the client, and the IP converter function (step S82) between the IPs of the respective ports.

7 is a view illustrating a wireless internet service method through a wired ethernet port in a wireless internet service relay terminal of the present invention, unless otherwise described, the embedded OS 110 is performed as a subject. As shown in FIG. 7, the mobile communication module 170 recognizes a driver suitable for the mounted Ethernet device 130 to activate a network connected through the Ethernet port 132 which is a wired network (step S110). Recognizing a suitable driver is also performed (step S112), and steps S110 and S112 may be performed first or at the same time.

Next, the Eth0 connection port is generated through the recognized driver (step S130), and E-IP0 (Ethernet IP No. 0), which is a wired connection IP corresponding thereto, is allocated (step S150). At the same time or before and after this, the mobile communication module 170 is also given a CDMA connection port (PPP0) (step S132), and then an attempt is made to connect to the corresponding Internet service provider (ISP) (step S140) to obtain the public network IP (P). -IP0) is allocated (step S152).

After these steps, a wired connection through each Ethernet, an E-IP0 for wired Ethernet and a public network communication connection through CDMA, and a P-IP0 for the public network are created, and the embedded OS 110 recognizes each connection as a virtual port. . For example, the Ethernet connection is set to Eth0 and PPP0 ports, the wired IP is set to E-IP0, the public network IP is set to P-IP0, and for Ethernet, the number of Eth1 / E-IP1, Eth2 / E- is increased as the wired port is increased. It can be expanded to IP2 and the same for public networks. In this state, when data is input / output (steps S170 and S172) from the Ethernet 130 or the mobile communication module 170, the embedded OS 110 converts different protocols through the Eth0 and PPP0 ports. Data is transmitted / received (step S190) to an IP converter function (step S182) between the function (step S180) and the IP of each port.

The wireless Internet service relay terminal apparatus and its control method of the present invention are not limited to the above-described embodiments, and various modifications can be made within the scope allowed by the technical idea of the present invention. For example, as described above, it is possible to use not only the use of the wireless Internet while moving, but also the wireless data to transmit / receive the status information of the moving remote device or the wireless remote meter reading device, and various other telematics content products. Applicable to

According to the wireless Internet service relay terminal device and the control method of the present invention as described above, a built-in wired Ethernet interface or a wireless access point that can be connected to a wireless or wired LAN card in a portable computer terminal, a plurality of users can be connected at the same time Built-in SoC for central processing of input data, embedded OS is operated on embedded SoC, and uses public network with hand-off function such as CDMA / GSM (GPRS) / PCS By providing a stable environment for wireless internet service and providing it as a customer service in a mobile location such as public transportation, or in a place without wired network infrastructure. Can provide services.

Claims (10)

A power connector for connecting with an external power source; When the positive and negative polarities of the external power input through the power connector are reversed from the original circuit, the reverse voltage prevention circuit prevents damage to the entire circuit and sparks or static electricity that may occur when the power is connected. A power supply circuit unit including a protection circuit unit formed of an antistatic circuit for preventing damage to the entire circuit, and a multi power generation unit for generating and supplying various powers required by each embedded system block; An Ethernet interface unit for a wired network connection with an external hub or switch or a wired PC; A mobile communication module integrated with a mobile communication technology capable of transmitting and receiving wireless data over a long distance, which is a public network; Network SoC for IP assignment, network protocol conversion and data relay between the Ethernet interface unit and the mobile communication module by operating various network protocols and embedded OS including DHCP protocol that automatically assigns and assigns an IP address. System On Chip); A memory for storing the embedded OS and various application programs; Universal serial interface unit for connecting to external devices or monitoring the status of internal circuits; and A terminal apparatus for relaying a wireless internet service, comprising a status display unit for visually displaying various states of a device. A power connector for connecting with an external power source; When the positive and negative polarities of the external power input through the power connector are reversed from the original circuit, the reverse voltage prevention circuit prevents damage to the entire circuit and sparks or static electricity that may occur when the power is connected. A power supply circuit unit including a protection circuit unit formed of an antistatic circuit for preventing damage to the entire circuit, and a multi power generation unit for generating and supplying various powers required by each embedded system block; An access point for connecting a wireless LAN card and a short range wireless network of a portable computer terminal; A mobile communication module integrated with a mobile communication technology capable of transmitting and receiving wireless data over a long distance, which is a public network; A network SoC (System for the IP assignment, network protocol conversion and data relay between the access point and the mobile communication module by operating various network protocols and embedded OS including DHCP protocol that automatically assigns and assigns an IP address. On Chip); A memory for storing the embedded OS and various application programs; Universal serial interface unit for connecting to external devices or monitoring the status of internal circuits; and A terminal apparatus for relaying a wireless internet service, comprising a status display unit for visually displaying various states of a device. delete delete delete delete delete According to claim 1 or 2, The network SoC (System On Chip) is equipped with a boot loader that performs a predetermined function, The memory includes an EEPROM for storing the boot loader; Flash memory and the embedded OS and the plurality of applications and memory mapped I used to simultaneously store the boot loader and the embedded OS and a plurality of applications and to read the stored data when the power is supplied again. / O terminal device for relaying a wireless Internet service, comprising an SDRAM used for temporary data storage for peripheral devices. delete An Ethernet interface unit for a wired network connection with an external hub or switch or a wired PC; An access point for connecting a wireless LAN card and a short range wireless network of a portable computer terminal; The Ethernet interface unit and the operating system by operating various network protocols and embedded OS, including a mobile communication module integrated with a mobile communication technology capable of transmitting and receiving wireless data over a public network, and a DHCP protocol for automatically setting and allocating an IP address. In a wireless Internet service relay terminal device including a network SoC (System On Chip) responsible for IP allocation, network protocol conversion and data relay between mobile communication modules, the Ethernet interface or the access point and the mobile communication module. Is performed by the embedded OS for (a) identifying a suitable driver for each of the Ethernet interface or the access point and the mobile communication module; (b) generating a wired connection port (Eth0) for the Ethernet interface and an IP port (E-IP0) assigned to the wired LAN connected to the Ethernet interface through the driver of the Ethernet interface recognized in step (a); (c) IP port (IP W-IPO) assigned to a wireless connection port (W-AP0) for the access point and a wireless LAN accessing the access point through the driver of the access point recognized in step (a). Generating c); (d) generating a public network connection port (PPP0) and a public network IP port (P-IP0) for the mobile communication module through the driver of the mobile communication module recognized in step (a); and (e) converting the input / output data between the Ethernet interface or the access point and the mobile communication module generated in each step into a protocol and IP suitable for a counterpart, and then transmitting them through each port. Control method of a terminal device for relaying wireless Internet service.

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