KR20060046405A - Method for switching access point in wlan and mobile communication and its potable terminal - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a switching method between a wireless LAN connection and a modem connection, a portable terminal and a computer-readable recording medium having recorded thereon a program for realizing the method.

2. The technical problem to be solved by the invention

According to the present invention, when switching from a WLAN connection to a modem connection is required, the wireless data service connected to the modem can be determined after confirming that the currently connected wireless data service is a wireless data service through a modem connection. Modem connection method) to provide a wireless data service, which can be read by a computer recording a switching method between a wireless LAN connection and a modem connection to prevent excessive communication charges, a portable terminal and a program for realizing the method. The purpose is to provide a record medium.

3. Summary of Solution to Invention

According to an aspect of the present invention, there is provided a portable terminal comprising: means for transmitting and receiving a wireless signal through a modem connection method; Means for transmitting and receiving wireless signals in a wireless LAN connection method; Input means for receiving a selection signal; When the portable terminal is driven and controlled, and a switching connection is required from a wireless LAN connection to a modem connection, after confirming that the currently connected wireless data service is a wireless data service through a modem connection, the portable terminal receives a selection signal received through the input means. Control means for connecting to a wireless data service via a modem connection accordingly; And output means for outputting information according to the control of the control means.

4. Important uses of the invention

The present invention is used for a portable terminal capable of modem connection and wireless LAN connection.

Modem connection, wireless LAN connection, transfer connection, connection method confirmation, connection method selection signal, portable terminal

Description

Switching connection method between wireless LAN connection and modem connection and a portable terminal according to the above [Method for switching access point in WLAN and mobile communication and its potable terminal}

1 is a configuration diagram of an embodiment of a portable terminal according to the present invention;

2A is a flowchart illustrating an embodiment of a WLAN on process among code division multiple access (CDMA) according to the present invention;

2b is an exemplary view of a message box according to the present invention;

FIG. 3A is a flowchart illustrating an access procedure through code division multiple access (CDMA) when moving out of a wireless LAN according to the present invention; FIG.

3b is another exemplary diagram of a message box according to the present invention;

FIG. 4 is a flowchart illustrating another embodiment of an access process through code division multiple access (CDMA) when moving out of a wireless LAN according to the present invention.

* Explanation of symbols on the main parts of the drawing

11: CDMA RF Module 12: Operation / Control Device

13: codec 14: storage device

15: audio output device (speaker) 16: display device (LCD)

17: input device (keypad) 18: voice input device (microphone)

19: wireless LAN module

The present invention relates to a switching method between a wireless LAN connection and a modem connection, a portable terminal and a computer-readable recording medium having recorded thereon a program for realizing the method. More specifically, a connection manager is provided. In case of connection by using Internet service provider (ISP), the modem connection and the wireless LAN connection through the network card are not provided at the same time when connecting to the Internet, and the user must confirm what wireless data is currently connected. Also, for automatic connection through a modem, even if an automatic connection occurs, the wireless LAN connection and the modem connection that do not provide wireless data service by checking the status of the WLAN and the status of the modem so that browsing does not continue. Transfer method between the two It relates to a computer-readable recording medium recording a program for realizing the group and the above-described way.

In the present invention, the portable terminal refers to a terminal which can be connected to a modem and a wireless LAN while being carried by an individual. For example, it refers to a portable terminal that can be carried by an individual while allowing modem access through an ISP setting and wireless LAN connection through a network card.

In an embodiment of the present invention, a code division multiple access (CDMA) method is described as an example of a modem access method through an ISP setting, and a "Nespot swing service" provided by "KT" as a WLAN data service method. This will be described as an example. However, it should be noted that the present invention is not limited thereto.

In general, the environment of the wireless data service is changing so that users can receive their desired wireless data service anytime and anywhere according to the needs of the wireless data service. For example, "Nespot swing service" provided by "KT" is also designed to provide convenience to users and to provide better service and billing policies.

However, when using a WLAN and a carrier modem (KTF, hereinafter referred to as "modem") at the same time in the "Nespot swing sevice", the user connects via what the current wireless data service is. If a user moves to an out-of-wireless area while using a wireless data service through a wireless LAN, the connection of the wireless LAN is terminated and the code division multiple access (CDMA) is automatically performed. There is a problem of accessing a wireless data service using the scheme. At this time, the user may mistake the wireless data service currently being serviced as the wireless data service through the WLAN. This may eventually result in excessive charges to the user resulting in customer dissatisfaction.

Looking at the customer complaints in more detail as follows.

First, the user turned on the WLAN to receive the wireless data service through the wireless LAN connection while receiving the wireless data service through the modem connection (KTF), but the connection manager normally connected to the modem through the connection. In some cases, the wireless data service continues through the modem connection (KTF). However, since the user has turned on the wireless LAN, the wireless data service from the wireless data service is now available through the wireless LAN connection. The case occurs due to a mistake.

Secondly, if you move to the out-of-WLAN area during the wireless data service through the current wireless LAN, the modem is terminated to receive the wireless data that is terminated and the query of data currently being browsed is received. Automatic connection occurs. However, the user does not recognize the automatic connection through the modem (CDMA) and continues to mistake the wireless LAN connection state, and eventually overcharge occurs while the user does not recognize it.

The present invention has been proposed in order to solve the above problems, when switching from a wireless LAN connection to a modem connection is required, by determining whether to connect after confirming that the currently connected wireless data service is a wireless data service through a modem connection. To provide a wireless data service using a wireless access method (modem access method) that is not recognized by a user, a method of switching between a wireless LAN connection and a modem connection to prevent excessive communication charges, a portable terminal, and a method thereof Its purpose is to provide a computer readable recording medium having recorded thereon a program for realization.

That is, the present invention does not provide a modem connection through an Internet service provider (ISP) setting and a wireless LAN connection through a network card at the same time, when the connection is made using a connection manager. In order to determine whether or not to connect after confirming what wireless data is currently connected, and to automatically connect through modem, even if automatic connection occurs, check the status of WLAN and modem status to continue browsing. It is an object of the present invention to provide a switching method between a wireless LAN connection and a modem connection, a portable terminal, and a computer-readable recording medium recording a program for realizing the method. .

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

An apparatus of the present invention for achieving the above object is a portable terminal, comprising: means for transmitting and receiving a radio signal in a modem connection method; Means for transmitting and receiving wireless signals in a wireless LAN connection method; Input means for receiving a selection signal; When the portable terminal is driven and controlled, and a switching connection is required from a wireless LAN connection to a modem connection, after confirming that the currently connected wireless data service is a wireless data service through a modem connection, the portable terminal receives a selection signal received through the input means. Control means for connecting to a wireless data service via a modem connection accordingly; And output means for outputting information according to the control of the control means.

On the other hand, the first method of the present invention is a switching method between a wireless LAN connection and a modem connection, the first method for checking whether the connection is currently connected via a modem connection in response to a request for a transfer connection from the modem connection to the wireless LAN connection; Confirmation step; As a result of the checking of the first checking step, if the current connection is not connected through the modem connection, the wireless LAN power is turned on and the modem is notified of the wireless LAN status (on). Operating a; A determination step of outputting a current connection state and determining the type of the selection signal received according to the first confirmation step as a result of being connected through a modem connection; If the connection is selected as a result of the determination, maintaining the current modem connection state; As a result of the determination, if the connection through the WLAN is selected, after the modem connection is terminated, turning on the WLAN power and informing the modem of the WLAN status (on); A second verifying step of checking whether a modem connection query remains; And as a result of the confirmation of the second verification step, loading the WLAN drive and operating the WLAN as there is no modem connection query.

In addition, the first method of the present invention includes a third verification step of confirming whether the WLAN state is ON according to a modem access query as a result of the verification of the second verification step; And as a result of the checking of the third checking step, ignoring the modem access query and loading the wireless LAN drive to operate the wireless LAN as the wireless LAN state is ON. .

The first method may further include reconnecting to a wireless data service through a modem according to a modem connection query when the state of the wireless LAN is turned off as a result of the checking of the third verification step. It includes more.

On the other hand, in the second method of the present invention, in a switching connection method between a wireless LAN connection and a modem connection, the wireless LAN connection is disconnected as the out-of-wireless area movement event occurs during the current connection through the wireless LAN connection. switching to a disconnection state; First verifying whether there is a modem connection query; As a result of the checking of the first checking step, if there is no modem connection query, the current state is maintained, and if there is a modem connection query, the second checking step of checking whether the current WLAN state is ON. ; A determination step of outputting a current connection state and determining the type of the selection signal received according to the result of the checking of the second confirmation step as the current WLAN state is ON; If it is determined that the connection via the modem has not been selected, maintaining the current connection state; And if the connection is selected through a modem, turning off the WLAN power, notifying the modem of the WLAN status (off), and connecting through a modem connection.

The second method of the present invention may further include reconnecting to a wireless data service through a modem connection as a result of the confirmation of the second confirmation step, when the current WLAN state is OFF.

On the other hand, the third method of the present invention, in the switching connection method between the wireless LAN connection and the modem connection, the wireless LAN connection is disconnected as the out-of-wireless area movement event occurs while being connected via the current wireless LAN connection ( switching to a disconnection state; Checking whether there is a modem connection query; As a result of the check, if there is no modem connection query, the current state is maintained, and if there is a modem connection query, an ID and a password are inputted; And re-connecting through a modem connection, turning off the WLAN power, and notifying the modem of the WLAN status (off).

On the other hand, according to the fourth method of the present invention, in the switching connection method between the wireless LAN connection and the modem connection, it is output whether the currently connected wireless data service is a wireless data service through a modem connection or a wireless data service through a wireless LAN connection. Confirming by; Receiving a selection signal according to the output and confirming whether the selection is a wireless data service through a modem connection or a wireless data service through a WLAN connection; And connecting to a wireless data service through a modem connection or a wireless data service through a wireless LAN connection according to the service check result.

On the other hand, the first recording medium of the present invention, in order to switch between the wireless LAN connection and the modem connection, through a modem connection in response to a request for a transfer connection from a modem connection to a wireless LAN connection to a portable terminal having a processor; A first checking function for checking whether a connection is made; As a result of the confirmation in the first confirmation function, if the current connection is not established through the modem connection, the wireless LAN power is turned on and the modem is notified of the wireless LAN status (on). Operating a LAN; A determination function of outputting a current connection state and determining a type of the selection signal received accordingly as a result of the confirmation in the first confirmation function; A function of maintaining the current modem connection state if the connection through the modem is selected as a result of the determination; A function of turning on the WLAN power and notifying the modem of the WLAN status (on) after terminating the modem connection if the connection through the WLAN is selected as a result of the determination; A second verification function for checking whether a modem connection query remains; And a computer-readable recording medium having recorded thereon a program for realizing a function of operating the WLAN by loading the WLAN drive as a result of the verification in the second verification function, when there is no modem connection query. To provide.

In addition, the first recording medium of the present invention, as a result of the check in the second confirmation function, as a modem connection query (Query) remains, the third confirmation function for checking whether the wireless LAN state is ON (ON) state; And a function of ignoring the modem connection query and loading the wireless LAN drive to operate the wireless LAN as the wireless LAN state is turned on as a result of the confirmation in the third confirmation function. A computer readable recording medium having a program recorded thereon is provided.

In addition, the first recording medium of the present invention reconnects to a wireless data service through a modem according to a modem connection query if the result of the confirmation in the third verification function is turned off. A computer readable recording medium having recorded thereon a program for further realizing the function.

On the other hand, in the second recording medium of the present invention, in order to switch between the wireless LAN connection and the modem connection, the out-of-wireless area movement event occurs while the portable terminal including the processor is currently connected via the wireless LAN connection. Accordingly, switching a WLAN connection to a disconnected state; A first checking function of checking whether there is a modem connection query; As a result of the check in the first checking function, if there is no modem connection query, the current state is maintained, and if there is a modem connection query, a second confirmation for checking whether the current WLAN state is ON. function; A determination function of outputting a current connection state and determining a type of the selection signal received according to the second WLAN as a result of the check in the second WLAN function; A function of maintaining a current connection state if the connection through the modem is not selected as a result of the determination; And if the connection via the modem is selected as a result of the determination, the computer can record a program for realizing the function of turning off the WLAN power, notifying the state of the WLAN to the modem (off), and connecting through the modem connection. Provide a recording medium.

In addition, the second recording medium of the present invention further realizes a function of reconnecting to a wireless data service through a modem connection as a result of the confirmation in the second confirmation function, when the current WLAN state is OFF. A computer readable recording medium having a program recorded thereon is provided.

On the other hand, in the third recording medium of the present invention, in order to switch between the wireless LAN connection and the modem connection, the out-of-wireless area movement event occurs while the portable terminal including the processor is currently connected via the wireless LAN connection. Accordingly, switching a WLAN connection to a disconnected state; Checking whether there is a modem connection query; A function of receiving an ID and a password if there is a modem connection query as a result of the check; And a computer-readable recording medium having recorded thereon a program for realizing a function of re-connecting through a modem connection, turning off the WLAN power and notifying the WLAN status (off) to the modem. do.

On the other hand, the fourth recording medium of the present invention, in order to switch between the wireless LAN connection and the modem connection, the portable terminal having a processor, the wireless data service currently connected to the wireless data service via the modem connection or wireless LAN connection A function of outputting and confirming whether a wireless data service is provided; Receiving a selection signal according to the output and confirming whether the selection is a wireless data service through a modem connection or a wireless data service through a WLAN connection; And a computer-readable recording medium having recorded thereon a program for realizing a function of connecting to a wireless data service through a modem connection or a wireless data service through a wireless LAN connection according to the service check result.

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

1 is a configuration diagram of an embodiment of a portable terminal according to the present invention.

As shown in FIG. 1, a portable terminal according to the present invention includes a code division multiple access (CDMA) RF module 11 for transmitting and receiving a radio signal with a base station through a code division multiple access (CDMA) method through an antenna. When a portable terminal is driven and controlled, and a switching connection is required from a wireless LAN connection to a modem connection, it is input through an input device (keypad) 17 after confirming that the currently connected wireless data service is a wireless data service through a modem connection. The code division multiple access (CDMA) RF module according to the control of the operation / control device 12 and the operation / control device 12 for connecting to a wireless data service (Internet) through a modem connection according to the received connection selection signal. The signal received from (11) is converted into voice and output to the voice output device (speaker) 15, and the voice received from the voice input device (microphone) 18 as a signal. A codec 13 for transmitting to the operation / control device 12 to be transmitted through the code division multiple access (CDMA) RF module 11, and a program and a file for driving the portable terminal. A storage device 14 storing a system (image, character, icon), a voice output device (speaker) 15 for outputting a voice received from the codec 13, and the operation / control A display device (LCD) 16 for outputting a screen (connection method selection screen, connection selection screen, wireless Internet communication result, etc.) according to the control of the device 12, telephone number, menu selection information, and connection method via buttons Through an input device (keypad) 17 for receiving a selection signal, a connection selection signal, and the like, a voice input device (microphone) 18 for receiving a voice and transmitting the same to the codec 13, and an antenna Access point (AP) and wireless signal It includes a wireless LAN module (19) for receiving.

On the other hand, when the transfer / controller 12 needs a transfer connection from a wireless LAN connection to a modem connection or from a modem connection to a wireless LAN connection, whether the currently connected wireless data service is a wireless data service through a modem connection or wireless After confirming to the user whether the wireless data service is provided through the LAN connection, the modem is connected through the ISP setting or the wireless LAN connection through the network card according to the connection method selection signal input from the user through the input device (keypad) 17. Connect to a wireless data service (Internet).

In this case, when a transfer connection is required from the wireless LAN connection to the modem connection, the portable terminal may move to an out-of-wireless area while receiving wireless data service through the wireless LAN connection, and thus automatic connection through a modem may occur. Include.

Next, the operation of each component will be described in detail with reference to FIGS. 2 to 4.

FIG. 2A is a flowchart illustrating an embodiment of a wireless LAN ON process in code division multiple access (CDMA) according to the present invention, and FIG. 2B is an exemplary view of a message box according to the present invention.

First, when receiving a wireless ON command from the user via the input device 17 while receiving a wireless data service through a modem connection, that is, when a user is requested to transfer from a modem connection to a WLAN connection ( In step 102, it is determined whether the present invention is connected to a wireless data service through a code division multiple access (CDMA). In other words, the connection state of the modem (CDMA) is checked.

As a result of the check 102, if the wireless data service is not currently connected through the code division multiple access (CDMA), the wireless LAN power is turned on and the modem is notified of the wireless LAN status (on) (103). That is, the wireless LAN power-on (PWR ON) is executed and the code division multiple access (CDMA) modem is notified that the current wireless LAN is ON. Accordingly, the code division multiple access (CDMA) modem may be used to determine a state of the WLAN later, for example, by setting a flag in a specific area of a storage unit such as a RAM (RAM). On / off). As another example, the operation / control device 12 may be implemented to store / manage the wireless LAN state (on / off) together with the modem state (on / off) or individually.

Thereafter, the wireless LAN is loaded to operate the wireless LAN (104).

As a result of the check 102, if a user is currently connected to a wireless data service through a code division multiple access (CDMA), a message box as shown in FIG. 2B is displayed to present a user with a current connection state (modem connection state). In step 105, the controller 110 receives the user's selection signal (connection type selection signal or connection selection signal) according to the user's selection signal and determines the type of the selection signal. At this time, for example, the message box is set to TopMost every 500msec for 7 seconds, but the user can display the current modem connection status, transfer connection selection contents to the wireless LAN, and the like as shown in FIG. 2B. After checking the contents, select the connection method.

The reason why the message box is set as the topmost (set to the topmost position) every certain time (for example, once every 500 msec for 7 seconds) is that the user generates a specific event to generate the message box. This is to prevent the case that (Box) is not recognized.

As a result of the determination (106), if the user selects 'No' to connect to the modem by viewing the message box, that is, the type of the selection signal received from the user continues to provide wireless data service through the modem connection. If it is a signal to use to maintain the current modem connection state (107) to continue to receive wireless data service through it.

As a result of the determination 106, if the user selects 'Yes' from the message box and selects a connection through the wireless LAN, that is, the type of the selection signal received from the user is a wireless data service through the wireless LAN connection. If it is a signal to use the connection manager (Connection Manage) terminates the modem connection (ras hangup) (108).

Thereafter, the WLAN power is turned ON and the modem is notified of the WLAN status (ON) (109). That is, the wireless LAN power-on (PWR ON) is executed and the code division multiple access (CDMA) modem is notified that the current wireless LAN is ON. Accordingly, the code division multiple access (CDMA) modem may be used to determine a state of the WLAN later, for example, by setting a flag in a specific area of a storage unit such as a RAM (RAM). On / off). As another example, the operation / control device 12 may be implemented to store / manage the wireless LAN state (on / off) together with the modem state (on / off) or individually.

Thereafter, it is checked whether there is a residual code division multiple access (CDMA) query (110). That is, as described above, during the wireless data service through the modem connection, the modem connection was terminated by the ras hangup according to the user's selection of the WLAN connection, but the WLAN connection was performed. If a multiple access (CDMA) query still exists, it is necessary to check whether there is a code division multiple access (CDMA) query because reconnection will occur through a modem.

If there is no remaining code division multiple access (CDMA) query (110), the wireless LAN drive is loaded by operating the wireless LAN drive (104), and the code division multiple access (CDMA) query is performed. If still there is a check to see if the wireless LAN state is ON (111).

As a result of the check 111, if the state of the WLAN is ON, the code division multiple access (CDMA) query generated by the modem is ignored (112) and the WLAN drive is loaded to load the WLAN. Operation 104. Here, the current state of the wireless LAN can be confirmed as the state that was notified and stored in the process "109".

As a result of the check 111, if the state of the WLAN is OFF, the wireless data service is returned to the wireless data service through a code division multiple access (CDMA) modem according to a code division multiple access (CDMA) query generated by the modem. A connection occurs (113). However, such a case is logically impossible to occur.

On the other hand, in another embodiment, the processes '105' to '107' may be processed by default so that the transfer from the modem connection to the WLAN connection occurs unconditionally.

FIG. 3A is a flowchart illustrating an access process through code division multiple access (CDMA) when moving out of a wireless LAN according to the present invention, and FIG. 3B is another exemplary diagram of a message box according to the present invention.

First, when a wireless LAN out-of-region movement event occurs while receiving a wireless data service through a wireless LAN connection, that is, when a state requiring a transfer connection from a wireless LAN connection to a modem connection occurs (200), the wireless LAN connection is disconnected. Switch to the (disconnection) state (201).

Then, it is checked whether there is a code division multiple access (CDMA) query (202).

If there is no code division multiple access (CDMA) query, the check result 202 is maintained (209). That is, the WLAN connection is maintained in an ON state or a disconnected state.

As a result of the check 202, if there is a code division multiple access (CDMA) query, it is checked whether the current WLAN state is ON (203).

As a result of the check 203, if the current WLAN state is OFF, reconnection to the wireless data service occurs through a code division multiple access (CDMA) modem (204). However, such a case is logically impossible to occur.

As a result of the check 203, if the current WLAN state is ON, a message box as shown in FIG. 3B is displayed to inform the user of the current connection state (WLAN on / off connection state). In operation 205, the controller 260 receives the user's selection signal (connection method selection signal or connection selection signal, etc.) accordingly and determines the type of the selection signal (206). At this time, for example, the message box is set to TopMost every 500msec for 7 seconds, but as shown in FIG. 3B, the user can display the current wireless LAN connection state, transfer connection selection to the modem, and the like. After checking the contents, select the connection method.

The reason why the message box is set as the topmost (set to the topmost position) every certain time (for example, once every 500 msec for 7 seconds) is that the user generates a specific event to generate the message box. This is to prevent the case that (Box) is not recognized.

As a result of the determination (206), if the user does not select the connection through the modem by viewing the message box (No) and maintains the current WLAN on / off connection state (209).

As a result of the determination (206), when the user selects 'Yes' from the message box and selects a connection through a modem, that is, the type of the selection signal received from the user uses a wireless data service through a modem connection. If it is a signal to turn off the wireless LAN power (OFF) and informs the wireless LAN state (off) to the modem (207). That is, wireless power off (PWR OFF) is executed and a code division multiple access (CDMA) modem notifies that the current wireless LAN is off. Accordingly, the code division multiple access (CDMA) modem may be used to determine a state of the WLAN later, for example, by setting a flag in a specific area of a storage unit such as a RAM (RAM). On / off). As another example, the operation / control device 12 may be implemented to store / manage the wireless LAN state (on / off) together with the modem state (on / off) or individually.

Thereafter, the service is connected to the wireless data service through the CDMA modem to receive the service (208). In this case, since the WLAN connection is already in the disconnected state, the '207' process and the '208' process may be performed in a reverse order.

On the other hand, in the process of '202', when the CDMA Query occurs and the reconnection through the modem occurs, the user inputs ID and password during ISP setup to always notify the user. If not, it is possible. This will be described later with reference to FIG. 4. However, this method requires a user to input ID (ID) and password (PWD) in the input box whenever the situation occurs. There is also the advantage of being able to make sure that a connection is occurring. On the other hand, if the password is stored to avoid this inconvenience, automatic reconnection occurs eventually causing billing problems later.

FIG. 4 is a flowchart illustrating another embodiment of an access process through code division multiple access (CDMA) when moving out of a wireless LAN according to the present invention.

First, when a wireless LAN out-of-region movement event occurs while receiving a wireless data service through a wireless LAN connection, that is, when a state requiring a transfer connection from a wireless LAN connection to a modem connection occurs (300), the wireless LAN connection is disconnected. switch to the (disconnection) state (301).

Thereafter, it is checked whether there is a code division multiple access (CDMA) query (302).

If there is no code division multiple access (CDMA) query, the check result 302 is maintained (305). That is, the WLAN connection is maintained in an ON state or a disconnected state.

As a result of the check 302, if there is a code division multiple access (CDMA) query, an ID (ID) and a password (PWD) are input from the user (303).

Thereafter, the system enters a re-connect state through a code division multiple access (CDMA) modem to use a wireless data service (304).

Thereafter, the WLAN power is turned off (OFF) and the modem is notified of the WLAN status (off) (306). That is, wireless power off (PWR OFF) is executed and a code division multiple access (CDMA) modem notifies that the current wireless LAN is off. Accordingly, the code division multiple access (CDMA) modem may be used to determine a state of the WLAN later, for example, by setting a flag in a specific area of a storage unit such as a RAM (RAM). On / off). As another example, the operation / control device 12 may be implemented to store / manage the wireless LAN state (on / off) together with the modem state (on / off) or individually.

Here, the '304' process and the '306' process may be performed in reverse order, but there is no problem in implementation. If the wireless LAN power is not turned off in the '306' process, the wireless LAN access state is displayed again when the user enters into the wireless LAN again even though the modem is being accessed. As a result, the user knows that the user is connected again through the wireless LAN (actually, the state of connection through the modem) and continues to receive the wireless data service, thereby causing a billing problem later.

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

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

According to the present invention as described above, when switching from a wireless LAN connection to a modem connection is required, the user may not recognize the connection after determining that the currently connected wireless data service is a wireless data service through a modem connection. The wireless data service is provided through a wireless access method (modem access method), thereby preventing an excessive communication charge.

That is, the present invention does not provide a modem connection through an Internet service provider (ISP) setting and a wireless LAN connection through a network card at the same time, when the connection is made using a connection manager. In order to determine whether or not to connect after confirming what wireless data is currently connected, and to automatically connect through modem, even if automatic connection occurs, check the status of WLAN and modem status to continue browsing. By not allowing the wireless data service to be provided, the wireless data service may be provided using a wireless access method that is not recognized by the user, thereby preventing excessive communication charges.

Claims (18)

In a portable terminal, Means for sending and receiving wireless signals in a modem connection manner; Means for transmitting and receiving wireless signals in a wireless LAN connection method; Input means for receiving a selection signal; When the portable terminal is driven and controlled, and a switching connection is required from a wireless LAN connection to a modem connection, after confirming that the currently connected wireless data service is a wireless data service through a modem connection, the portable terminal receives a selection signal received through the input means. Control means for connecting to a wireless data service via a modem connection accordingly; And Output means for outputting information according to the control of the control means Portable terminal comprising a. The method of claim 1, The control means, If a transfer connection is required from a WLAN connection to a modem connection or from a modem connection to a WLAN connection, the output indicates whether the currently connected wireless data service is a wireless data service through a modem connection or a wireless data service through a WLAN connection. After confirming through the means, according to the access method selection signal received through the input means, the portable type, characterized in that the connection to the wireless data service (Internet) through a modem connection through the ISP settings or a wireless LAN connection through the network card terminal. In a switching method between a wireless LAN connection and a modem connection, A first verifying step of confirming whether a modem connection is currently connected through a modem connection in response to a request for a transfer connection from a modem connection to a WLAN connection; As a result of the checking of the first checking step, if the current connection is not connected through the modem connection, the wireless LAN power is turned on and the modem is notified of the wireless LAN status (on). Operating a; A determination step of outputting a current connection state and determining the type of the selection signal received according to the first confirmation step as a result of being connected through a modem connection; If the connection is selected as a result of the determination, maintaining the current modem connection state; As a result of the determination, if the connection through the WLAN is selected, after the modem connection is terminated, turning on the WLAN power and informing the modem of the WLAN status (on); A second verifying step of checking whether a modem connection query remains; And As a result of the checking of the second checking step, when there is no modem access query, loading the wireless LAN drive to operate the WLAN. Alternate connection method between a wireless LAN connection and a modem connection comprising a. The method of claim 3, wherein A third confirmation step of confirming whether the WLAN state is ON according to the result of the confirmation of the second confirmation step as the modem access query remains; And As a result of the checking of the third checking step, as the WLAN state is ON, disregarding the modem access query and loading the WLAN drive to operate the WLAN. Alternate connection method between a wireless LAN connection and a modem connection further comprising. The method of claim 4, wherein As a result of the checking of the third checking step, if the state of the WLAN is OFF, reconnecting to the wireless data service through the modem according to a modem connection query. Alternate connection method between a wireless LAN connection and a modem connection further comprising. The method according to any one of claims 3 to 5, The current connection state output process of the determining step, Set the message box to the topmost at a predetermined time to display the current modem connection status and transfer connection selection to the wireless LAN so that the user can select the connection method after confirming the contents. Alternate connection method between a wireless LAN connection and a modem connection. In a switching method between a wireless LAN connection and a modem connection, Switching a WLAN connection to a disconnected state when a WLAN out-of-region mobile event occurs while being connected through a WLAN connection; First verifying whether there is a modem connection query; As a result of the checking of the first checking step, if there is no modem connection query, the current state is maintained, and if there is a modem connection query, the second checking step of checking whether the current WLAN state is ON. ; A determination step of outputting a current connection state and determining the type of the selection signal received according to the result of the checking of the second confirmation step as the current WLAN state is ON; If it is determined that the connection via the modem has not been selected, maintaining the current connection state; And As a result of the determination, if the connection through the modem is selected, turning off the WLAN power, notifying the state of the WLAN to the modem (off), and connecting through the modem connection. Alternate connection method between a wireless LAN connection and a modem connection comprising a. The method of claim 7, wherein Re-connecting to a wireless data service through a modem connection as a result of the confirmation of the second verification step, when the current WLAN state is OFF; Alternate connection method between a wireless LAN connection and a modem connection further comprising. The method according to claim 7 or 8, The current connection state output process of the determining step, The message box is set to the topmost at a predetermined time to display the current wireless LAN connection status and transfer connection selection to the modem so that the user selects the connection method after confirming the contents. Alternate connection method between a wireless LAN connection and a modem connection. In a switching method between a wireless LAN connection and a modem connection, Switching a WLAN connection to a disconnected state when a WLAN out-of-region mobile event occurs while being connected through a WLAN connection; Checking whether there is a modem connection query; As a result of the check, if there is no modem connection query, the current state is maintained, and if there is a modem connection query, an ID and a password are inputted; And Re-connecting through a modem connection, turning off the WLAN power and notifying the WLAN status (off) to the modem. Alternate connection method between a wireless LAN connection and a modem connection comprising a. In a switching method between a wireless LAN connection and a modem connection, Outputting and confirming whether the currently connected wireless data service is a wireless data service through a modem connection or a wireless data service through a wireless LAN connection; Receiving a selection signal according to the output and confirming whether the selection is a wireless data service through a modem connection or a wireless data service through a WLAN connection; And Connecting to a wireless data service through a modem connection or a wireless data service through a wireless LAN connection according to the service check result; Alternate connection method between a wireless LAN connection and a modem connection comprising a. In a portable terminal equipped with a processor for switching between a wireless LAN connection and a modem connection, A first checking function for checking whether a modem connection is currently connected through a modem connection in response to a request for a transfer connection from a modem connection to a WLAN connection; As a result of the confirmation in the first confirmation function, if the current connection is not established through the modem connection, the wireless LAN power is turned on and the modem is notified of the wireless LAN status (on). Operating a LAN; A determination function of outputting a current connection state and determining a type of the selection signal received accordingly as a result of the confirmation in the first confirmation function; A function of maintaining the current modem connection state if the connection through the modem is selected as a result of the determination; A function of turning on the WLAN power and notifying the modem of the WLAN status (on) after terminating the modem connection if the connection through the WLAN is selected as a result of the determination; A second verification function for checking whether a modem connection query remains; And As a result of the verification in the second verification function, a function of operating the WLAN by loading the WLAN drive according to the absence of a modem connection query. A computer-readable recording medium having recorded thereon a program for realizing this. The method of claim 12, A third confirmation function for confirming whether the WLAN state is ON as a result of the confirmation in the second confirmation function, as a modem connection query remains; And As a result of the confirmation in the third verification function, as the WLAN state is ON, a function of ignoring the modem access query and loading the WLAN drive to operate the WLAN A computer-readable recording medium that records a program for further realization. The method of claim 13, A function of reconnecting to a wireless data service through a modem according to a modem connection query if the state of the wireless LAN is OFF as a result of the checking in the third verification function; A computer-readable recording medium that records a program for further realization. In a portable terminal equipped with a processor for switching between a wireless LAN connection and a modem connection, A function of switching a WLAN connection to a disconnected state when a WLAN out-of-region movement event occurs while currently connected via a WLAN connection; A first checking function of checking whether there is a modem connection query; As a result of the check in the first checking function, if there is no modem connection query, the current state is maintained, and if there is a modem connection query, a second confirmation for checking whether the current WLAN state is ON. function; A determination function of outputting a current connection state and determining a type of the selection signal received according to the second WLAN as a result of the check in the second WLAN function; A function of maintaining a current connection state if the connection through the modem is not selected as a result of the determination; And As a result of the determination, if the connection through the modem is selected, the function of turning off the WLAN power, notifying the state of the WLAN to the modem (off), and connecting through the modem connection A computer-readable recording medium having recorded thereon a program for realizing this. The method of claim 15, A function of reconnecting to a wireless data service through a modem connection as a result of the confirmation in the second confirmation function, when the current WLAN state is OFF; A computer-readable recording medium that records a program for further realization. In a portable terminal equipped with a processor for switching between a wireless LAN connection and a modem connection, A function of switching a WLAN connection to a disconnected state when a WLAN out-of-region movement event occurs while currently connected via a WLAN connection; Checking whether there is a modem connection query; A function of receiving an ID and a password if there is a modem connection query as a result of the check; And Re-connect through modem connection, turn off the WLAN power, and notify the WLAN status (off) to the modem. A computer-readable recording medium having recorded thereon a program for realizing this. In a portable terminal equipped with a processor for switching between a wireless LAN connection and a modem connection, Outputting and confirming whether the currently connected wireless data service is a wireless data service through a modem connection or a wireless data service through a WLAN connection; Receiving a selection signal according to the output and confirming whether the selection is a wireless data service through a modem connection or a wireless data service through a WLAN connection; And A function of connecting to a wireless data service through a modem connection or a wireless data service through a wireless LAN connection according to the service check result A computer-readable recording medium having recorded thereon a program for realizing this.

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