KR20100047076A - Mobile access point and compound station using multi-mode mobile station having wireless lan and mobile internet function - Google Patents

Abstract

The present invention relates to an access point (AP) for providing an access service to a portable Internet network to a WLAN terminal (91, 92, 93) via a wireless LAN or a composite terminal device having a function of such an access device. will be.

In the present invention, it is manufactured by mounting software function blocks necessary for a hardware platform for manufacturing a conventional multi-mode portable terminal device 10 having a WLAN client function and a portable Internet client function, or a WLAN client function and a portable Internet client function. In the conventional multi-mode portable terminal device 10 having the above-described configuration, the mobile access device 100 or the composite terminal device 101 is formed by setting or installing software function blocks required by content download. In addition, the present invention performs automatic access processing based on the MAC address, counts and records the data packet amount, transmits the information on the data packet amount when the set alarm period and the event are satisfied, and sets the data packet amount. If the threshold is exceeded, it has the function of disconnecting.

Accordingly, the mobile access device 100 or the composite terminal device 101 of the present invention can be easily obtained at a low cost, so that a user can more easily carry a device including the functions of the mobile access device 100. In order to commercialize the mobile access device 100 or the composite terminal device 101, the cost and time required for development and certification can be greatly reduced. In addition, according to the present invention, the authentication procedure for the wireless LAN terminal to be allowed to access the portable Internet service becomes simpler, and the next authentication is not required to repeat the same authentication procedure when the next access is allowed, the user For example, in using the mobile Internet service, it is possible to easily obtain information about billing and an alarm matter related to billing.

Description

Mobile access point and compound terminal using multi-mode mobile terminal with wireless LAN and mobile internet functions

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an access point (AP) for providing an access service to a portable internet network, and more particularly to a mobile access device having a mobility possibility. The present invention also relates to a composite terminal device capable of performing a plurality of functions including the functions of a mobile access device. The present invention also relates to switching to a mobile access device or to a device capable of performing a plurality of functions including the functions of the mobile access device (hereinafter referred to as a composite terminal device).

Wireless LAN (WLAN) enables high-speed Internet access through PDAs, notebook computers, etc., within a certain distance centered on where access points (APs) are installed. However, the wireless LAN has a problem that it is difficult to use when the user is moving or away from the access device because the radio reach is short, and the wireless LAN is installed around a specific service area (also called a 'hot spot') to cover a large area. There is a problem that does not cover all.

On the other hand, the portable Internet (a WiBro service in Korea as a service type) is similar to a wireless LAN, but it allows users to use the high-speed Internet while moving anywhere like a mobile communication terminal. The portable Internet can overcome the limitations of the wireless LAN by using a frequency of 2.3 GHz and provide the high-speed Internet service required by the user on the go.

By the way, most of the devices such as PDA, notebook computer, etc. currently in use have a wireless LAN (IEEE 802.11) module only and there is a problem that does not have a module for receiving a portable Internet service. In order to solve such a problem and enable wireless LAN terminals such as PDAs and notebook computers having a wireless LAN function to use a portable Internet service, a technology related to a 'mobile access point' has emerged.

The mobile access device performs a function of connecting an access point (AP) of a wireless LAN and a connected terminal to a portable internet network. That is, the mobile access device performs a function of relaying the wireless LAN and the portable Internet. In order to perform the relay function, the mobile access device includes both a portion for performing a function of an access point (AP) for a WLAN terminal and a portion for performing communication with a portable Internet network. Perform relay function by interlocking parts. {The term 'mobile access device' refers to the term 'mobile' in the sense that it can be easily moved because it does not require a direct connection with a wired network, and does not necessarily mean that it is manufactured as a mobile type. May be made.}

However, when a user using a PDA, a notebook computer, or the like having a wireless LAN function attempts to directly purchase and use the above-described mobile access device in order to use a portable Internet service, there is a problem in that it requires much expense. . Some users want to purchase a dedicated mobile connection device for their own use. In order to allow the service users to use together, a common mobile access device may be installed and operated in a main place or a means of transportation. However, since the installation location and number of such mobile access devices may be limited, a dedicated mobile access device for a user may be provided. There may be a desire to own.

In addition, when a user purchases and uses a mobile connection device, it is reasonable to carry the mobile connection device with him at all times. In particular, this is especially true when a user has a plurality of devices having a WLAN function, and the user has only a single mobile access device. For example, a user may wish to use the mobile access device both in a vehicle computer attached to his vehicle and in a computer at home. In addition, even if a user wants to use a mobile access device in a device such as a PDA or a notebook computer, it is inconvenient to carry the mobile access device.

On the other hand, it is very costly and time-consuming to develop a mobile access device and to market it in the market. In particular, the hardware and software constituting the mobile access device must be designed separately, and the necessary authentication is required to bring the mobile access device to the market. For example, in relation to the wireless LAN part, we provide the certification of Wireless Fidelity (WiFi) for products that have passed a series of compatibility tests by a group called Wireless Ethernet Compatibility Alliance (WECA). Therefore, in order to develop and commercialize a mobile access device, it takes time required for various authentication separately. In addition to developing a mobile access device shared by a plurality of service users as well as a mobile access device dedicated to a specific user, the time and cost required for the above development and authentication are all small.

SUMMARY OF THE INVENTION The present invention has been made in view of solving the problems of the background arts described above or in consideration of the circumstances in which the background arts are located.

One object of the present invention is to enable a user to easily obtain a mobile access device or a device including the functions of a mobile access device at a low cost.

Another object of the present invention is to enable a user to more easily carry a mobile access device or a device including the functions of the mobile access device.

Another object of the present invention is to make it possible to significantly reduce the cost and time required for development and certification in order to commercialize a mobile connection device or a device including the functions of the mobile connection device.

Other objects and advantages of the present invention may be naturally understood or more apparent from the following description, and the object of the present invention is not limited only to the above description.

According to an aspect of the present invention, the present invention downloads software to a conventional multi-mode portable terminal device 10 having at least a wireless LAN client function and a client function for a portable Internet service, but without interworking between the two functions. Or a device configured to have a relay function to a portable Internet network providing the portable Internet service, wherein the software is configured to control or data messages from the WLAN terminals 91, 92 and 93. A soft AP unit 220 for performing protocol processing for a control message or a data message to the WLAN terminals 91, 92, and 93; A portable Internet client unit 213 for performing protocol processing on a control message or data message from the portable Internet network or a control message or data message to the portable Internet network; A NAT function unit 221 for performing IP address translation on the data message from the soft AP unit 220 or the data message from the portable Internet client unit 213; An automatic access processing unit (209) for performing automatic access processing based on a MAC address for the wireless LAN terminals (91, 92, 93) requesting access through the soft AP unit 220; Characterized by having a functional block comprising a.

According to an aspect of the present invention, the present invention downloads software to a conventional multi-mode portable terminal device 10 having at least a wireless LAN client function and a client function for a portable Internet service, but without interworking between the two functions. Or as a device (100,101) having a relay function to a portable internet network providing the portable Internet service, for a control message or a data message from the WLAN terminals (91,92,93), or A soft AP unit 220 for performing protocol processing on a control message or a data message to the WLAN terminals 91, 92, and 93; A portable Internet client unit 213 for performing protocol processing on a control message or data message from the portable Internet network or a control message or data message to the portable Internet network; A NAT function unit 221 for performing IP address translation on the data message from the soft AP unit 220 or the data message from the portable Internet client unit 213; A packet monitoring unit (219) for counting and recording the amount of data packets using the mobile packet service; The billing interlock control unit to transmit the information on the data packet amount when the set alarm period, or to transmit when the event set for the data packet amount is satisfied, or to release the connection when the data packet amount exceeds the set threshold value. 218; and functional blocks, including.

According to an aspect of the present invention, the present invention downloads software to a conventional multi-mode portable terminal device 10 having at least a wireless LAN client function and a client function for a portable Internet service, but without interworking between the two functions. Or a device configured to have a relay function to a mobile packet network providing the portable Internet service, for a control message or a data message from the WLAN terminals 91, 92, and 93, or A soft AP unit 220 for performing protocol processing on a control message or a data message to the WLAN terminals 91, 92 and 93; A portable Internet client unit 213 for performing protocol processing on a control message or data message from the portable Internet network or a control message or data message to the portable Internet network; A routing unit 230 for forwarding a data message from the soft AP unit 220 or a data message from the portable Internet client unit 213 by a routing table; An automatic access processing unit (209) for performing automatic access processing based on a MAC address for the wireless LAN terminals (91, 92, 93) requesting access through the soft AP unit 220; Characterized by having a functional block comprising a.

According to an aspect of the present invention, the present invention downloads software to a conventional multi-mode portable terminal device 10 having at least a wireless LAN client function and a client function for a portable Internet service, but without interworking between the two functions. Or as a device (100,101) having a relay function to a portable internet network providing the portable Internet service, for a control message or a data message from the WLAN terminals (91,92,93), or A soft AP unit 220 for performing protocol processing on a control message or a data message to the WLAN terminals 91, 92, and 93; A portable Internet client unit 213 for performing protocol processing on a control message or data message from the portable Internet network or a control message or data message to the portable Internet network; A routing unit 230 for forwarding a data message from the soft AP unit 220 or a data message from the portable Internet network by a routing table; A packet monitoring unit 219 for counting and recording the amount of data packets using the portable Internet service; Billing interlocking to transmit information about the data packet amount when the set alarm period is reached, or to transmit the information about the data packet amount when the event set for the data packet amount is satisfied, or to disconnect the data packet amount when the set amount of the data packet exceeds the set threshold. Control unit 218; Characterized by having functional blocks comprising a.

According to an aspect of the present invention, the present invention provides a portable multi-mode portable terminal apparatus 10 having at least a wireless LAN client function and a client function for a portable Internet service, but without interworking between the two functions. A first step of downloading or loading software capable of performing a relay function to a portable Internet network providing an Internet service; A second step of receiving a data message from a WLAN terminal (91,92,93) or from the portable Internet network; Transmitting the received message according to a NAT table or a routing table; When the periodic alarm for the WLAN terminals 91, 92 and 93 is set and the set period is reached, the corresponding billing information alarm message is transmitted or the event alarm for the WLAN terminals 91, 92 and 93 is transmitted. And a fourth step of transmitting a corresponding billing information alarm message when the set and set events are generated or disconnecting when the amount of used data packets exceeds a set threshold.

According to an aspect of the present invention, the present invention provides a portable multi-mode portable terminal apparatus 10 having at least a wireless LAN client function and a client function for a portable Internet service, but without interworking between the two functions. A first step of downloading or loading software capable of performing a relay function to a portable Internet network providing an Internet service; A second step of receiving a control message from a WLAN terminal (91,92,93); Determining whether a MAC address of the WLAN terminal (91,92,93) is recorded in a MAC authentication list; And a fourth step of allowing access of the corresponding WLAN terminals 91, 92, and 93 when the MAC address is recorded in the MAC authentication list as a result of the determination of the third step.

Since the present invention can be switched from the existing multi-mode portable terminal device to a mobile access device or a device (multiple terminal device) including the functions of the mobile access device through content download, the present invention provides a user with a mobile access device or a mobile access device. There is an effect that a device (multiple terminal device) including the function of the device can be easily obtained at a small cost.

Since the present invention can produce a mobile access device or a device (multiple terminal device) including the functions of the mobile access device by changing only the software on the hardware platform used in the existing multi-mode portable terminal device, the present invention provides the user with a mobile access. There is an effect that the device (composite terminal device) including the function of the device or the mobile access device can be easily obtained at a low cost.

Since the present invention can add a function of a mobile access device to a conventional multi-mode portable terminal device only by changing software, a multi- terminal device having both the multi-mode mobile terminal device and the mobile access device can be easily implemented. It is not necessary to carry the mode portable terminal device and the mobile connection device separately. Therefore, according to the present invention, in addition to carrying a multi-mode portable terminal device for receiving telephone service or Internet service, the functions of the mobile access device can be used together without carrying a separate device. According to the present invention, there is an effect that a user can more easily carry a mobile access device or a device (composite terminal device) including the functions of the mobile access device.

The present invention uses the hardware, physical layer and link layer of the existing multi-mode portable terminal device as it is. Therefore, the present invention has the effect that the cost and time required for development and certification can be greatly reduced in order to commercialize a mobile access device or a device (multiple terminal device) including the functions of the mobile access device.

According to the present invention, an authentication procedure for allowing a WLAN terminal to access a portable Internet service becomes simpler, and there is an effect that the same authentication procedure does not need to be repeated the next time the access is made after the access is allowed once.

According to the present invention, as a user of a mobile access device or a composite terminal device or a user of a wireless LAN terminal, when using a portable Internet service, it is possible to easily obtain information about billing and alarm matters related to billing.

The objects, features and advantages of the present invention will become more apparent from the following detailed description. 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 subject matter 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.

The present invention has the greatest feature in that an existing multi-mode portable terminal apparatus having a wireless LAN client function and a portable Internet client function is provided to provide a device including a function of a mobile access device or a mobile access device. The multi-mode portable terminal device has a wireless LAN client function and a portable Internet client function, but there is no interworking between the two functions. Dual-mode phones, commonly called 'WiFi phones', are equipped with modules for receiving wireless LAN service and wide area mobile communication service, respectively. When a mobile communication service is provided through a portable internet network, a multi-mode portable terminal device including both a wireless LAN module and a portable internet module can be assumed.

In such a multi-mode portable terminal device, a module for a WLAN service is programmed and released to perform a function of a WLAN client. However, by changing or upgrading the software, a module having a function of a WLAN client may be changed to have a function of an access point (AP) for the WLAN terminal. The present invention has been made in view of the fact that it is also possible to connect and relay a module for portable Internet connection in software.

1 is a diagram conceptually illustrating a situation in which a multi-mode portable terminal device having a WLAN module and a portable Internet module is provided with an existing service. It shows the general use of the existing multi-mode portable terminal device as described above.

When the multi-mode portable terminal device 10 is located in the service area 80 of the access device 50 (AP: Access Point), the multi-mode portable terminal device 10 is connected to the Ethernet switch via the connection device 50. It is connected to the / router 60 and the IP network 40 can be provided with the Internet service. On the other hand, if it is outside the service area 80 of the wireless LAN and within the service area 70 of the mobile Internet, the Radio Access Station (RAS) 20 of the mobile Internet and the ACR (Access Control) Router: Internet service is provided through a connection control router (Portable Internet Control Station) (30). In this case, the multi-mode portable terminal device 10 may be provided with a mobile phone service and an Internet service.

In the lower part of FIG. 1, each protocol stack is illustrated when the multi-mode portable terminal device 10 is connected through a wireless LAN or when connected through a portable Internet. When the multi-mode portable terminal device 10 is connected through the connection device 50, the multi-mode portable terminal device 10 uses the wireless LAN connection IP address received from the DHCP server unit of the connection device 50. Through the 802.11 link layer 13 and the 802.11 physical layer 14, a mobile phone service or an Internet service is provided. On the other hand, when leaving the WLAN service area 80 and within the service area 70 of the portable Internet, the multi-mode portable terminal device 10 receives the IP address for the mobile Internet connection generated in the process of connecting with the ACR 30. Based on the 802.16 link layer 16 and the 802.16 physical layer 17, the mobile phone service or the Internet service is provided.

FIG. 2 is a view illustrating a method of converting a multi-mode portable terminal device having a conventional WLAN client function and a portable Internet client function into a mobile access device 100 or a device 101 including a function of a mobile access device according to the present invention. It is a figure which shows the usage situation conceptually.

2 is a mobile terminal 100 or composite terminal apparatus 101 (hereinafter, referred to collectively as a mobile terminal apparatus and a composite terminal apparatus) to which terminals 91, 92, and 93 having a WLAN client function are switched. A connection device (100, 101), or a "terminal device having a relay function" is connected to the portable Internet network.

As illustrated in FIG. 2, the mobile access devices 100 and 101 are portable Internet clients capable of receiving portable Internet services in the portable Internet service area 70. At the same time, the mobile access device 100 or 101 has the function of a wireless LAN access device, and has a portable terminal device 91, a PDA 92, or a notebook computer 93 having a wireless LAN client function coming into its service range 90. ) To establish an environment that can provide access services to (hereinafter referred to as "wireless LAN terminal").

Meanwhile, the present invention generally relates to two types of devices, namely, a 'mobile access device' and a 'composite terminal device'. A 'mobile access device' is a device providing a wireless access function to a portable Internet network using a wireless LAN to a wireless LAN terminal, and a 'multiple terminal device' is a wireless access to a portable Internet network using a wireless LAN to a wireless LAN terminal. In addition to providing a connection function, the device can selectively provide a function as a wireless LAN client and a function as a portable Internet client. The composite terminal device refers to a terminal which has a function as a wireless LAN client or a portable Internet client in addition to the function as a mobile access device. A mode when the composite terminal device functions as a mobile access device will be referred to as a relay mode, and a mode when it functions as a wireless LAN client or a portable Internet client will be referred to as a normal mode. The composite terminal device can change between the relay mode and the normal mode. On the other hand, when the composite terminal device of the present invention is in the relay mode, the composite terminal device may provide a voice call function by using the VoPI unit while providing a relay service to the WLAN terminal (details will be described later).

On the other hand, the present invention switches the multi-mode portable terminal device having the function of the existing wireless LAN client and the portable Internet client as described above, to obtain a mobile access device or a composite terminal device. The conversion is possible by changing the software, especially the application layer part of the protocol stack. According to the present invention, there are two methods for changing an existing multi-mode portable terminal device to a mobile access device or a composite terminal device. One is to sell the changed software during the production process and sell it as a mobile access device or a composite terminal device, and the other is to include content that can contain the necessary software blocks or generate the required software blocks in the existing multi-mode portable terminal device. By downloading and setting the environment online or offline, the existing multi-mode portable terminal device is changed to a mobile access device or a composite terminal device.

Returning to FIG. 2 again, the lower end of FIG. 2 shows the protocol stack of the mobile access device 100 or the protocol stack when the composite terminal device 101 operates in the relay mode. The mobile access devices 100 and 101 have an 802.11 WLAN physical layer 14, an 802.11 link layer 13, an IP layer 18, and an application layer 19 to provide access over a WLAN. have. In addition, the mobile access devices 100 and 101 have an 802.16 physical layer 17, an 802.16 link layer 16, an IP layer 15, and an application layer 19 to receive a portable Internet service.

The application layer 19 includes a DHCP server and WLAN authentication for providing access to the WLAN terminals 91, 92, and 93, a DHCP client for providing mobile Internet service, IP management and VoIP, and data. It includes NAT to handle address translation during the exchange, or it includes a router for routing. DHCP server and WLAN authentication is the application layer on the WLAN side, DHCP client, IP management and VoIP is the application layer on the mobile Internet side, NAT or router is the application layer interworking both sides.

3 is a block diagram illustrating an internal hardware configuration of an existing multi-mode portable terminal apparatus having a wireless LAN module unit and a portable internet module unit.

The hardware configuration of the multi-mode portable terminal device 10 shown in FIG. 3 can be used as it is as the hardware configuration of the mobile access device 100 of the present invention. 3 is a diagram showing the hardware configuration of the mobile access device 100 or the composite terminal device 101 of the present invention.

The portable terminal device 10 or the mobile access device 100 or 101 includes an LCD 111 for providing a screen to the user, an audio 112 for processing a voice, and a user's input based on the CPU 160. It has a peripheral device 110 including a touch button 113 to process the image, a camera 114 for inputting an image, and an external interface 115 for external USB connection or other device connection. The mobile terminal 10 or the mobile access device 100 or 101 includes a wireless LAN module 120 for wireless LAN connection and a portable internet module 150 for mobile internet connection. In addition, the portable terminal device 10 or the mobile connection device 100 or 101 may include a power supply unit 140 including a power supply unit 142 for applying power and a protection circuit unit 141 for protecting the device in case of overload. And a memory unit 130 having an NVRAM 133 for storing important data, an SDRAM 132 for executing a program, and an external memory 131 for external backup or data storage. The memories of the memory unit 130 not only store personal information required by the portable terminal device 10 or the mobile access device 100, 101, but also convert the portable terminal device 10 to the mobile access device 100, 101. It is also used to store the software.

4 illustrates a software structure 200 for operating in a general multi-mode portable terminal apparatus 10, or a software structure for operating as a normal wireless LAN client or a portable Internet client in a composite terminal apparatus 101 (normal mode). 200 is a view showing. 4 is not a hardware structure but a software structure 200.

As shown in FIG. 4, the IP management unit 210 receives and manages an IP address from the AP 50 of the wireless LAN through the wireless LAN client 211 when the wireless LAN is connected. It receives and manages an IP address from the ACR 30 through 213. The environment setting unit 212 is a function block that manages environment settings of the multi-mode portable terminal device, provides a menu, and processes a user's input. The download unit 214 is a functional block that manages actual download under the control of the environment setting unit 212. When the content is downloaded from the content provider, the environment setting unit 212 may configure the multi-mode portable terminal device using the downloaded content. In particular, when the multi-mode portable terminal device 10 is switched to the mobile access device 100 or the composite terminal device 101, the download unit 214 downloads the content and the environment setting unit 212 downloads the content. It may be possible to switch to the mobile access device 100 or the composite terminal device 101 by using. The download unit 214 and the environment setting unit 214 are generally provided as a general multi-mode portable terminal device 10, in order to implement the mobile access device 100 or the composite terminal device 101 of the present invention. It should be noted that it is not considered to have a separate. Meanwhile, the multi-mode portable terminal apparatus 10 or the composite terminal apparatus 101 in the normal mode is provided with a voice call service using the voice call processor 215 or the internet data processor 216 in the same manner as a general mobile phone. Internet service can be provided.

5 is a diagram illustrating a software structure 200 when operating in the relay mode in the software structure 200 or the composite terminal device 101 of the mobile access device 100.

The mobile access device 100 or the composite terminal device 101 may be converted to the mobile access device 100 or the composite terminal device 101 during use as the multi-mode portable terminal device 10, or may be multi-mode portable in the production process. It may be implemented as the mobile access device 100 or the composite terminal device 101 through software mounting on the hardware platform of the terminal device 10. In either case, FIG. 5 shows the software structure 200 of the mobile access device 100 or the software structure 200 when operating in the relay mode in the composite terminal device 101.

Referring to FIG. 4, the multi-mode portable terminal device 10 has a wireless LAN client function. However, the mobile access device 100 or 101 of FIG. 5 does not operate the wireless LAN client function. The soft AP unit 220, the DHCP server unit 222, and the wireless LAN authentication unit 223, NAT function unit 221, automatic connection processing unit 209, packet monitoring unit 219 to function as an access device and The charging interlock control unit 218 has been generated.

 The IP management unit 210 is a software block that performs a function of requesting an IP address to the ACR 30 through the portable Internet client unit 213 and managing a received IP address. The IP management unit 210 records the IP address received through the portable Internet client unit 213 in the NAT function unit 221.

The portable internet client unit 213 is a functional block for accessing the portable internet. The portable Internet client unit 213 performs protocol processing on the control message and data message from the IP management unit 210 and the NAT function unit 221, or, conversely, the protocol processing on the control message and data message from the portable Internet network. It is a functional block that performs. The portable Internet client unit 213 performs protocol processing through operations of the 802.16 physical layer and the 802.16MAC layer.

The automatic access processing unit 209 provides the automatic access processing function based on the MAC address through user authentication to the wireless LAN terminals 91, 92 and 93 requesting access through the soft AP unit 220. Software function block. The automatic access processing unit 209 performs pre-authentication access processing (which will be described in detail with reference to FIG. 14) for the WLAN terminals 91, 92, and 93, and collects the MAC collected during the pre-authentication access processing. By using the address, it is possible to automatically connect to the WLAN terminals 91, 92, and 93 attempting to access the same MAC address.

The packet monitoring unit 219 interlocks with the NAT function unit 221 and the portable Internet client unit 213 to count data upload, download and error data packet amounts when using the portable Internet, and also access the wireless LAN terminal 91, 92, 93) is a software functional block for recording the amount of data packets used. The packet monitoring unit 219 continuously stores the cumulative data packet amount and the data packet amount for each section of the mobile access device 100 and 101, the cumulative data packet amount for each of the WLAN terminals 91, 92, and 93, and the data packet amount for each section. Record as. The cumulative data packet amount is the amount of data packets accumulated from the baseline point of time to the current point of time, and the data packet amount for each section is the amount of packet used by the set interval, for example, the date, and the data packet used from 0 o'clock to the present day. The amount may be the amount of data packets used by the week, or the amount of data packets used from 0 to the present Monday on this week.

The charging interworking control unit 218 transmits preset information among various data packet amounts when the set alarm period or the set alarm event for each of the WLAN terminals 91, 92, and 93 is satisfied, and exceeds the preset threshold. In the case of a software function block. The packet monitoring unit 219 continuously stores the cumulative data packet amount and the data packet amount for each section of the mobile access device 100 and 101, the cumulative data packet amount for each of the WLAN terminals 91, 92, and 93, and the data packet amount for each section. As it is recorded, the WLAN terminal may be configured to inform all of the information on the amount of data packets or only information of a selected portion thereof. When the set alarm period or the set alarm event is satisfied, only the information previously set by the WLAN terminals 91, 92 and 93 may be transmitted to the WLAN terminal. When the cumulative data packet amount of the mobile access devices 100 and 101 exceeds the threshold, all of the wireless LAN terminals 91, 92 and 93 can be provided with a function to stop the provision of the portable Internet service. In addition, the mobile access device 100 or 101 provides a portable Internet service to the corresponding WLAN terminals 91, 92 and 93 when the cumulative data packet amount of the WLAN terminals 91, 92 and 93 exceeds a threshold. It can have a function to stop.

The configuration unit 212 is the same software functional block in both the conventional multi-mode portable terminal device 10 or the mobile access device 100 and the composite terminal device 101 of the present invention. The environment setting unit 212 generally provides a menu to a user and performs a function of changing a device setting according to the menu setting. In the present exemplary embodiment, the environment setting unit 212 may be involved in environment setting when the multi-mode portable terminal device 10 is switched to the mobile connection device 100, 101, or the like, and the relay mode in the composite terminal device 101 may also be used. You will also be involved in configuring your environment when you change modes. When a change between the normal mode and the relay mode is requested, the environment setting unit 212 processes a setting necessary for the change. The environment setting unit 212 processes environment settings of the WLAN terminals 91, 92, and 93. In the WLAN terminal configuration processing, the charging information alarm is set, user ID / password registration, user authentication database location registration, and one-click password setting are performed (these are described in detail with reference to FIG. 17). ).

When switching the multi-mode portable terminal apparatus 10 to the mobile access device 100 or the composite terminal apparatus 101 by the download method, the environment setting unit 212 (movement after switching) of the multi-mode portable terminal apparatus 10 The same as the environment setting unit 212 of the access device 100 or the composite terminal device 101), the soft AP unit 220, the DHCP server unit 222, the wireless LAN authentication unit 223, And extracting the NAT function unit 221 and installing or setting the NAT function unit 221 in the multi-mode portable terminal device 10 so as to become the mobile access device 100 or the composite terminal device 101. On the other hand, even when the composite terminal apparatus 101 is changed from the normal mode to the relay mode, the environment setting unit 212 is the soft AP unit 220, DHCP server unit 222, WLAN authentication unit 223, and The NAT function unit 221 functions to be installed or set.

The soft AP 220 is a functional block for providing a WLAN connection to the WLAN terminals 91, 92, and 93. The soft AP 220 is operated according to the configuration of the environment setting unit 212 and performs protocol processing for control messages and data messages from the WLAN terminals 91, 92 and 93, and performs a WLAN authentication unit ( 223, a function block for performing protocol processing on control messages and data messages from the NAT function unit 221 and the DHCP server unit 222. The soft AP 220 performs protocol processing through operations of the 802.11 physical layer and the 802.11MAC layer.

The WLAN authentication unit 223 is a block that performs an authentication function for restricting access of the WLAN terminals 91, 92, and 93. The WLAN authentication unit 223 performs an authentication procedure according to a standard encryption authentication method such as WEP, WPA, WPA2, etc., and manages information of an authenticated terminal.

The DHCP server unit 223 is a functional block that provides an IP address for an IP address request of the WLAN terminals 91, 92, and 93. The DHCP server unit 223 requests the wireless LAN authentication unit 223 to verify whether the terminal is an authenticated terminal according to the IP address request of the wireless LAN terminals 91, 92, and 93 and assigns the IP address only to the confirmed terminal. have. The IP address allocated by the request of the wireless LAN terminals 91, 92, and 93 in the DHCP server unit 223 is used in the NAT function unit 221 to perform the portable Internet service relay function.

NAT function unit 221 is a functional block for converting the address of the data message transmitted between the portable Internet and the wireless LAN. The NAT function unit 221 receives the IP address for the mobile Internet from the IP management unit 210, and receives the IP addresses for the authenticated WLAN terminals from the DHCP server unit 222. The NAT function unit 221 converts an address in various ways. For example, when the NAT function unit 221 receives a data message from a mobile Internet network, the NAT function unit 221 checks the IP address and port of the received data message. Find and map the IP address and port of the WLAN terminal, and in the case of the data message received from the WLAN terminal, the IP address and port of the WLAN terminal are identified and mapped to the IP address and port for the portable Internet.

The VoIP unit 225 is used for a voice call when operated in the relay mode of the composite terminal device, and is connected to the external portable Internet network through the NAT function unit 221 or directly through the portable Internet client unit 213. Even when the composite terminal device performs a NAT relay function for the WLAN terminal, the composite terminal device can provide a voice call function.

The VPN client unit 224 is used for transmitting / receiving secure data when the NAT function unit 221 transmits data to or receives data from the portable Internet network. The VPN client unit 224 performs a function of establishing a virtual private network using a protocol such as L2TP, PPTP, IPSec, or the like.

FIG. 6 is a diagram illustrating a software structure 250 when operating a routing function when operating in the relay mode in the software structure 200 or the composite terminal device 101 of the mobile access device 100.

FIG. 6 is a case where the routing unit 230 is set by the environment setting unit 212 in place of the NAT function unit 221 of FIG. 5, and establishes a routing table by the IP routing protocol, and the soft AP unit 220. Data messages from or data messages from the portable Internet network are forwarded by the established routing table. The routing unit 230 processes static routing in a fixed form according to the configuration of the environment setting unit 212 and dynamic routing that reflects a variable network situation by a routing protocol, and the resulting routing table and data are generated. Forwarding table.

FIG. 7 is a diagram illustrating a process in which the multi-mode portable terminal device 10 is converted to the composite terminal device 101 and an operation process after the conversion to the composite terminal device 101 by the download method. 8 is a diagram illustrating an operation process of the composite terminal device 101 when the composite terminal device 101 is produced from the beginning.

FIG. 7 is a diagram illustrating a process in which the multi-mode portable terminal device 10 is converted to the composite terminal device 101 by the download method and an operation process after the conversion to the composite terminal device 101. 8 is a diagram illustrating an operation process of the composite terminal device 101 when the composite terminal device 101 is produced from the beginning.

Referring to FIG. 7, the portable terminal apparatus 10 or the composite terminal apparatus 101 first performs the necessary initialization step 301 (the portable terminal apparatus 10 may be referred to as before the necessary contents are downloaded and installed and set up). However, hereinafter, referred to as the "composite terminal device 101" for convenience). Thereafter, in step 302, it is determined whether the composite terminal device 101 is set to the relay mode, and if it is not set to the relay mode, operation is performed in the normal mode (305). On the other hand, if it is set to the relay mode, it is determined whether a required software block exists (303). If not, it is determined whether a content provider is providing content including the software block (304). If the content provider does not provide the content, the composite terminal apparatus 101 is allowed to operate in the normal mode (305) (which is strictly operated as the multi-mode portable terminal apparatus 10). On the other hand, if the content provider provides the content, the content is downloaded and set (306).

On the other hand, if the necessary software block exists in step 303, the operation of the relay mode is started (307). In step 308, the composite terminal device 101 combines the authentication information to broadcast a beacon signal including the SSID (Service Set ID), and receives a message of the WLAN client. If the received message is a control message (309), the control message processing subroutine 400 proceeds to the control message, and if it is not a control message to report as a data message NAT processing subroutine or routing processing subroutine ( Proceed to 500).

8 is a diagram illustrating an operation process of the composite terminal device 101 when the composite terminal device 101 is produced from the beginning.

8 is a case where the software blocks necessary to operate as the composite terminal apparatus 101 are already mounted in the production process of the composite terminal apparatus 101, it is not necessary to download the software blocks. However, in the process of producing the composite terminal device 101, the software functional blocks of the present invention are mounted on a hardware platform for manufacturing a conventional multi-mode portable terminal device 10 having a wireless LAN client function and a portable Internet client function. All you have to do is.

8 is the same as removing only steps 303, 304, and 306, which are steps for downloading software blocks as compared to the processes of FIG. 7, and thus a detailed description thereof will be omitted.

FIG. 9 is a diagram illustrating a process of switching the multi-mode portable terminal device 10 to the mobile access device 100 by a download method and an operation process after switching to the mobile access device 101. FIG. 11 is a diagram illustrating an operation process of the mobile access device 100 when the mobile access device 100 is produced from the beginning.

Since the mobile access device 100 operates only in the relay mode, the mode switching process is not necessary. FIG. 9 is substantially the same when the process of determining whether the relay mode is set 302 is removed in comparison with FIG. 7.

Referring to FIG. 9, the multi-mode portable terminal apparatus 10 or the mobile access apparatus 101 first performs the necessary initialization step 301 (before the required contents are downloaded, installed and set up, the multi-mode portable terminal apparatus 10 However, hereinafter referred to as a "mobile connection device 100" for convenience). In step 303, it is determined whether a required software block exists, and if it does not exist, it is determined whether a content provider is providing content including the software block (304). If the content provider does not provide the content, the content provider operates according to the function of the multi-mode portable terminal device 10 (305). On the other hand, if the content provider is providing the content, the corresponding content is downloaded and set necessary (306).

On the other hand, if the necessary software block exists in step 303, operation as the mobile access device 10 is started (307). In operation 308, the mobile access device 101 broadcasts a beacon signal including a service set ID (SSID) by combining authentication information, and receives a message of a WLAN client. If the received message is a control message (309), the control message processing subroutine 400 proceeds to the control message, and if it is not a control message to report as a data message NAT processing subroutine or routing processing subroutine ( Proceed to 500).

FIG. 10 is a diagram illustrating an operation process of the mobile access device 100 when the mobile access device 100 is produced from the beginning.

The mobile access device 100 described with reference to FIG. 10 is a case where software blocks necessary for operating as the mobile access device 100 are already mounted in the production process of the mobile access device 100, and thus need to download the software blocks. There is no. However, in the process of producing the mobile access device 100, the software functional blocks of the present invention are mounted on a hardware platform for manufacturing a conventional multi-mode portable terminal device 10 having a wireless LAN client function and a portable Internet client function. All you have to do is.

11 illustrates a control message processing subroutine 400 when using a NAT function unit.

Check the received message from the WLAN terminal (401), and check whether the received message is an IP address control message (402), if not the IP address control message proceeds to step 403. In the case of the authentication message in step 403, the password is confirmed and an authentication procedure is performed (406). If the authentication message is not an authentication message, the received message is discarded (407). If it is an IP address control message in step 402, the flow proceeds to step 404 to determine whether it is an IP address request. As a result of the determination, in the case of the IP address request, it is determined whether an IP address already allocated to the corresponding terminal exists (408). If there is no already assigned IP address, the new IP address is managed by combining with the MAC address of the link layer and the new IP is recorded in the NAT table (410). On the other hand, if there is an already assigned IP address, and compares the existing IP allocation information and the MAC address of the link layer, if the same is assigned to the existing IP address and registered in the NAT table (409). On the other hand, if it is not the IP address request in step 404, it is determined as an IP address release request, and releases the IP address and removes the IP address and port information registered in the NAT table (405).

12 illustrates a NAT processing subroutine 500.

After receiving the data message (501), it is determined whether the source IP address is from the WLAN terminal (502), and if the source is the WLAN terminal, it is determined whether the destination is the external Internet network (503). If the destination is an external Internet network, it is determined whether the source IP address exists by checking the information registered in the NAT table (506). If the source IP address is found in the NAT table, the message is translated according to the NAT table. And reassemble and transmit the message to the external portable Internet (510), record the log (512), and process the alarm and billing interlock control processing subroutine (800). If the source IP address is not registered in the NAT table in step 506, it is regarded as a message of an unauthorized terminal, the message is discarded (507) and the log is recorded (512), and the usage alarm and billing interlock control Process processing subroutine 800. On the other hand, if the destination is not the external Internet network in step 503, it is determined by the communication between the internal terminals and transmitted to the corresponding wireless LAN terminal (504), the log is recorded (512), the usage alarm and billing interlocking control Process processing subroutine 800. If the source is not the wireless LAN in step 502, the flow proceeds to step 505 to determine whether the source is an external Internet network (505). If the source is an external Internet network, the process proceeds to step 508 to determine whether it exists in the NAT table (508). If the source exists in the NAT table, the message address is converted according to the translation information of the NAT table and the message is transmitted to the WLAN through reassembly. In step 511, the process proceeds to step 512. In step 512, the log is recorded and the alarm of the usage amount and the billing interlock control processing subroutine 800 are processed. In step 505, if the source is not the external Internet network or does not exist in the NAT table in step 508, the data is discarded (509), the log is recorded (512), and usage alarms and billing interlocked. The control processing subroutine 800 is processed.

FIG. 13 is a diagram showing another embodiment of the control message processing subroutine 450 when using the NAT function unit.

Check the received message from the WLAN terminal (451), determine whether the MAC address of the WLAN terminal is recorded in the MAC authentication list (452), if not recorded in the MAC authentication list sub-authentication processing 600 Process the routine. If it is recorded in the MAC authentication list in step 452, it is checked whether the received message is an IP address control message (453), and if it is not an IP address control message, the received message is discarded (456). In the case of the IP address control message in step 453, the flow proceeds to step 454 to determine whether the request is an IP address. As a result of the determination, in the case of the IP address request, it is determined whether an IP address already allocated to the corresponding terminal exists (457). If there is no already assigned IP address, the new IP address is managed by combining with the MAC address of the link layer and the new IP is recorded in the NAT table (459). On the other hand, if there is an already assigned IP address, and compares the existing IP allocation information and the MAC address of the link layer, if the same is assigned to the existing IP address and registered in the NAT table (458). On the other hand, if it is not the IP address request in step 454, it is determined as an IP address release request, and releases the IP address and removes the IP address and port information registered in the NAT table (455).

14 shows the pre-authentication connection processing subroutine 600.

System configuration information of the mobile access devices 100 and 101 includes a one-click password. In addition, the one-click password is a well-known password that is well known to all the WLAN terminals 91, 92, and 93 to be connected to the mobile access device 100, 101, and the like. 92 and 93 include the one-click password in the control message. Since the one-click password can be distributed in advance in the program, it is not necessary for the user of the WLAN terminals 91, 92 and 93 to enter or set the one-click password during the connection process. Therefore, the user of the wireless LAN terminals 91, 92 and 93 can be connected to the mobile access device or the like with one click.

First, the one-click password is checked in the system configuration information (601), and the received one-click password is compared with the one-click password in the system configuration information (602). If the ciphers match in step 602, it is determined whether the message of the WLAN terminal is the first access message (603), and if it is the first access message, the process proceeds to step 605. In step 605, a message requesting a user ID and a password is transmitted to the WLAN terminal. If it is not the first access message in step 603, it is determined whether the message of the WLAN terminal is a user authentication message (604). If it is a user authentication message in step 604, the process proceeds to user authentication processing 700 subroutine. If it is not the user authentication message in step 604, the flow proceeds to step 606 to disconnect. If the one-click password does not match in step 602, the flow proceeds to step 606 to disconnect.

15 shows a user authentication processing subroutine 700.

First, the user ID and password are checked (701), and it is determined whether the user authentication database exists outside (702). If it is external, the process proceeds to step 704, redirects to the external user authentication server and receives the response result (704), and determines whether an authentication OK message is received from the external user authentication server (706). If the authentication OK message is received in step 706, the MAC address of the WLAN terminal is recorded in the MAC authentication list (707), and the authentication OK message is transmitted to the corresponding WLAN terminal (710). If the authentication OK message is not received in step 706, the authentication NOK message is transmitted to the corresponding WLAN terminal (709). If the user authentication database does not exist outside in step 702, it is determined whether the user authentication database exists inside the mobile access device or the like (703). If the user authentication database exists in step 703, it is determined whether the received user ID and password match the user ID and password stored in the mobile access device or the like (705). If it matches, the MAC address of the WLAN terminal is recorded in the MAC authentication list (707), and the authentication OK message is transmitted to the WLAN terminal (710). If there is no match in step 705 and if there is no user authentication database in step 703, the process proceeds to step 708 to transmit an authentication NOK message to the corresponding WLAN terminal.

16 is a usage alarm and billing interlock control processing subroutine (800).

In operation 802, it is determined whether a periodic alarm is set for the WLAN terminals. When the periodic alarm is set, the set alarm period is read (804), and it is determined whether the corresponding cycle has been reached (806). When the cycle is reached, the charging information alarm message for the cycle is transmitted to the terminal (808), and the flow proceeds to step (803). The charging information alarm message may include a cumulative data packet amount and a section data packet amount of the mobile access devices 100 and 101, a cumulative data packet amount and a section data packet amount of the corresponding WLAN terminal. If the cycle is not reached in step 806, step 803 is reached. If the periodic alarm for the WLAN terminal is not set in step 802, the process proceeds to step 803 to determine whether an event alarm for the WLAN terminal is set (803). If an event alarm is set, the content of the set event is read (805) to determine whether the corresponding event has occurred (807). For example, the event may be a state in which the cumulative data packet amount of the corresponding terminal exceeds a set threshold, or a state in which 80% of the set threshold is reached. As another example, the event may be a state in which the cumulative usage fee of the corresponding terminal exceeds a set threshold or reaches 80% of the set threshold. In the present invention, the data packet amount will be described mainly. However, the embodiment is always changed to a fee instead of a data packet amount.

When the event occurs in step 807, the charging information alarm message for the corresponding event is transmitted to the terminal (809), and it is determined whether the data packet amount exceeds the set threshold (810), and if it exceeds the current of the terminal The connection is released (811). If the event alarm for the WLAN terminal is not set as a result of the determination of step 803, and if the corresponding event does not occur as a result of the determination of step 807, the process proceeds to step 810.

17 shows a WLAN terminal configuration processing subroutine 900.

First, the system environment setting information and the WLAN terminal environment setting table are checked (901). Wait for the manager's command to come (902). It is determined whether the administrator's command is the setting of the charging information alarm for the WLAN terminal (903). If the setting is the setting of the charging information alarm, the administrator registers the alarm setting in the WLAN terminal configuration table (904). If it is determined in step 903 that the charging information alarm for the WLAN terminal is not set, the process proceeds to step 905 to determine whether it is an internal registration command of the WLAN terminal user (905). As a result of the determination in step 905, if the internal registration command of the WLAN terminal user, the WLAN terminal user ID and password are registered in the WLAN terminal configuration table (906). If the determination result of step 905 is not an internal registration command of the WLAN terminal user, the flow proceeds to step 907 to determine whether the location registration setting of the external user authentication database is set. If it is determined in step 907 that the location registration setting is set, the location of the external user authentication database is registered in the system configuration information (908). If it is determined in step 907 that the location is not registered, it is determined whether the WinClick password is set (909). If it is determined in step 909 that the one-click password is set, the one-click password is set in the system configuration information (910). In the present embodiment, the user sets the one-click password to the mobile access devices 100 and 101. However, the one-click password is automatically set through the portable Internet network or when the software is set to the mobile access devices 100 and 101. Various methods are possible, such as being included and set. If it is determined in step 909 that the WinClick password is not set, it is determined whether the WLAN terminal configuration is terminated (911), and when it is terminated, the system configuration information and the WLAN terminal configuration table are stored (912). If it is not terminated, it waits for an administrator command (902). After performing steps 904, 906, 908, and 910, an administrator command is waited for (902).

As those skilled in the art to which the present invention pertains, various permutations, modifications, and changes are possible without departing from the technical spirit of the present invention. It is not limited by.

1 is a diagram conceptually illustrating a situation in which a multi-mode portable terminal device having a WLAN module and a portable Internet module is provided with an existing service.

FIG. 2 illustrates the use situation after converting a multi-mode portable terminal device having a conventional wireless LAN client function and a portable Internet client function into a mobile access device 100 or a device 101 including a function of a mobile access device. Conceptually illustrated.

3 is a block diagram illustrating an internal hardware configuration of an existing multi-mode portable terminal apparatus having a wireless LAN module and a portable internet module.

4 is a software structure 200 for operating in a general multi-mode portable terminal apparatus 10, or a software structure for operating in a conventional wireless LAN client or a portable Internet client in a composite terminal apparatus 101 (normal mode). 200 is a view showing.

5 is a diagram illustrating a software structure 200 when operating in the relay mode in the software structure 200 or the composite terminal device 101 of the mobile access device 100.

FIG. 6 is a diagram illustrating a software structure 250 when operating a routing function when operating in the relay mode in the software structure 200 or the composite terminal device 101 of the mobile access device 100.

FIG. 7 is a diagram illustrating a process in which the multi-mode portable terminal device 10 is converted to the composite terminal device 101 by the download method and an operation process after the conversion to the composite terminal device 101.

7 is a diagram illustrating an operation process of the composite terminal device 101 when the composite terminal device 101 is produced from the beginning.

FIG. 9 is a diagram illustrating a process of switching the multi-mode portable terminal device 10 to the mobile access device 100 by a download method and an operation process after switching to the mobile access device 101.

FIG. 10 is a diagram illustrating an operation process of the mobile access device 100 when the mobile access device 100 is produced from the beginning.

11 illustrates a control message processing subroutine 400.

12 illustrates a NAT processing subroutine 500.

FIG. 13 is a diagram showing another embodiment of the control message processing subroutine 450 when using the NAT function unit.

14 shows the pre-authentication connection processing subroutine 600.

15 shows a user authentication processing subroutine 700.

16 is a usage alarm and billing interlock control processing subroutine (800).

17 shows a WLAN terminal configuration processing subroutine 900.

Claims (8)

A mobile device that provides the mobile Internet service by downloading or installing software into a conventional multi-mode mobile terminal device 10 having at least a wireless LAN client function and a client function for a mobile Internet service, but no interworking between the two functions. As a device (100, 101) having a relay function to the Internet network, The software, Soft AP unit 220 for performing protocol processing on the control message or data message from the WLAN terminals 91, 92 and 93, or the control message or data message to the WLAN terminals 91, 92 and 93 ); A portable Internet client unit 213 for performing protocol processing on a control message or data message from the portable Internet network or a control message or data message to the portable Internet network; A NAT function unit 221 for performing IP address translation on the data message from the soft AP unit 220 or the data message from the portable Internet client unit 213; An automatic access processing unit (209) for performing automatic access processing based on a MAC address for the wireless LAN terminals (91, 92, 93) requesting access through the soft AP unit 220; Apparatus having functional blocks comprising a. A mobile device that provides the mobile Internet service by downloading or installing software into a conventional multi-mode mobile terminal device 10 having at least a wireless LAN client function and a client function for a mobile Internet service, but no interworking between the two functions. As a device (100, 101) having a relay function to the Internet network, Soft AP unit 220 for performing protocol processing on the control message or data message from the WLAN terminals 91, 92 and 93, or the control message or data message to the WLAN terminals 91, 92 and 93 ); A portable Internet client unit 213 for performing protocol processing on a control message or data message from the portable Internet network or a control message or data message to the portable Internet network; A NAT function unit 221 for performing IP address translation on the data message from the soft AP unit 220 or the data message from the portable Internet client unit 213; A packet monitoring unit 219 for counting and recording the amount of data packets using the portable Internet service; The billing interlock control unit to transmit the information on the data packet amount when the set alarm period, or to transmit when the event set for the data packet amount is satisfied, or to release the connection when the data packet amount exceeds the set threshold value. (218); Apparatus having functional blocks comprising a. A mobile device that provides the mobile Internet service by downloading or installing software into a conventional multi-mode mobile terminal device 10 having at least a wireless LAN client function and a client function for a mobile Internet service, but no interworking between the two functions. As a device (100, 101) having a relay function to the Internet network, Soft AP unit for performing protocol processing on the control message or data message from the WLAN terminal (91, 92, 93) or the control message or data message to the WLAN terminal (91, 92, 93) ( 220); A portable Internet client unit 213 for performing protocol processing on a control message or data message from the portable Internet network or a control message or data message to the portable Internet network; A routing unit 230 for forwarding a data message from the soft AP unit 220 or a data message from the portable Internet client unit 213 by a routing table; An automatic access processing unit (209) for performing automatic access processing based on a MAC address for the wireless LAN terminals (91, 92, 93) requesting access through the soft AP unit 220; Apparatus having functional blocks comprising a. By providing the mobile Internet service by downloading or installing the software into a general multi-mode mobile terminal 10 having at least a wireless LAN client function and a mobile Internet service, but no interworking between the two functions. As a device (100, 101) having a relay function to a portable Internet network, Soft AP unit 220 for performing protocol processing on the control message or data message from the WLAN terminals 91, 92 and 93, or the control message or data message to the WLAN terminals 91, 92 and 93 ); A portable Internet client unit 213 for performing protocol processing on a control message or data message from the portable Internet network or a control message or data message to the portable Internet network; A routing unit 230 for forwarding a data message from the soft AP unit 220 or a data message from the portable Internet network by a routing table; A packet monitoring unit 219 for counting and recording the amount of data packets using the portable Internet service; Billing interlocking to transmit information about the data packet amount when the set alarm period is reached, or to transmit the information about the data packet amount when the event set for the data packet amount is satisfied, or to disconnect the data packet amount when the set amount of the data packet exceeds the set threshold. Control unit 218; Apparatus having functional blocks comprising a. Relaying to a conventional multi-mode portable terminal 10 having at least a wireless LAN client function and a client function for portable Internet service, but without interworking between the two functions, to the portable Internet network providing the portable Internet service. A first step of downloading or mounting software capable of performing a function; A second step of receiving a data message from a WLAN terminal (91,92,93) or from the portable Internet network; Transmitting the received message according to a NAT table or a routing table; When the periodic alarm for the WLAN terminals 91, 92 and 93 is set and the set period is reached, the corresponding billing information alarm message is transmitted or the event alarm for the WLAN terminals 91, 92 and 93 is transmitted. A fourth step of transmitting a corresponding charging information alarm message when the set and set events are generated or disconnecting when the amount of used data packets exceeds a set threshold; Method of operation of a terminal device having a relay function, comprising a. A relay function to a portable Internet network providing the portable Internet service to a conventional multi-mode portable terminal device 10 having at least a wireless LAN client function and a client function for portable Internet service, but without interworking between the two functions. The first step of downloading or mounting the software capable of performing; A second step of receiving a control message from a WLAN terminal (91,92,93); Determining whether a MAC address of the WLAN terminal (91,92,93) is recorded in a MAC authentication list; A fourth step of allowing access of the corresponding WLAN terminal (91,92,93) when the MAC address is recorded in the MAC authentication list as a result of the determination in the third step; Method of operation of a terminal device having a relay function, comprising a. The method according to claim 6, If the MAC address is not recorded in the MAC authentication list as a result of the third step, further comprising a fifth step of performing the pre-authentication access processing subroutine 600, The fifth step, 5-1 for determining whether the one-click password included in the received control message, the one-click password is a well-known password well known to the user, matches the one-click password known by the terminal apparatus having the relay function. step; If the one-click password is the same as the determination result of step 5-1, the user terminal and the password are requested from the WLAN terminals 91, 92 and 93, and the user authentication processing subroutine is based on the user ID and password. Step 5-2 to perform 700; Method of operation of a terminal device having a relay function, comprising a. The method according to claim 7, User authentication processing subroutine 700 performed in the step 5-2, If the user authentication database exists outside of the terminal device having the relay function, the user authentication database is redirected to an external user authentication server to receive the authentication result, and if the user authentication database exists inside the terminal device having the relay function, Step 5-2-1 of performing authentication in the; A fifth step of the second step of writing the MAC address of the wireless LAN terminal (91,92,93) in the MAC authentication list when the authentication is successful in the step 5-2-1; Method of operation of a terminal device having a relay function, comprising a.

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