KR100755530B1 - Wireless modem and mobile terminal having a modem - Google Patents

Abstract

The present invention relates to a wireless modem for wireless network connection, the wireless modem capable of transmitting and receiving packets,

An interface unit for transmitting and receiving data with the subscriber station; An information storage unit for storing server connection and subscriber authentication information transmitted through the interface unit; A terminal emulator which processes the subscriber authentication procedure with the server connected to the circuit using the stored information, receives the setting information for setting the data channel according to the processing result, stores it in the information storage unit, and transitions to a data packet transmission / reception state. Wow; And a server emulator for processing a subscriber authentication procedure with the terminal when the subscriber terminal requests a wireless internet access, and transmitting the setting information stored in the information storage unit to the subscriber terminal to transition the terminal to a data packet transmission / reception state. For example, even if the communication connection is disconnected due to factors such as a communication environment, the reconnection is automatically performed by the terminal emulator. Thus, there is an advantage that the wireless Internet connection can be made at a higher speed than the conventional method of performing reconnection by subscriber intervention.

Wireless modem, emulator, auto connection.

Description

WIRELESS MODEM AND MOBILE TERMINAL HAVING A MODEM}

1 is a diagram illustrating a system configuration for dialing up using a wireless modem.

2 is a view for explaining a process up to transmission and reception of a data packet in the system shown in FIG.

3 is a diagram illustrating a configuration of a wireless modem and a peripheral block configuration according to an embodiment of the present invention.

4 is a view for explaining a process up to transmission and reception of data packets in the system shown in FIG.

5 is an exemplary block diagram of a mobile communication terminal and a peripheral block thereof as a wireless modem according to another embodiment of the present invention.

The present invention relates to a wireless network connection device, and more particularly, to a wireless modem and a mobile communication terminal incorporating a modem.

The wireless Internet is distinguished from the wired Internet, which is used by connecting a wired line such as a telephone line or a dedicated line to a computer, and uses an Internet service using a wireless terminal or a wireless modem without a wire.

Wireless Internet has the advantage of being able to use Internet service anywhere and anytime regardless of time and place. In order to use the wireless Internet service, a wireless Internet service can be received by connecting a mobile communication terminal or an external wireless modem to a PC or a laptop and dialing up.

For reference, FIG. 1 illustrates a general system configuration for dialing up using an external wireless modem 20, and FIG. 2 illustrates a process of transmitting and receiving data packets in the system shown in FIG. The figure for the purpose of illustration is shown.

As shown in Fig. 1 and Fig. 2, the service subscriber can dial up the server 40 through the terminal 10 such as a PC. The server 40 transmits the transmitted information (ID and password) to the authentication server 50 as a method for confirming whether the user is a normal subscriber to perform the subscriber authentication procedure. When the subscriber authentication is completed normally, the subscriber station 10 is in a state capable of transmitting and receiving data packets with the server 40 via the wireless modem 20.

If the modem connection is automatically terminated due to communication instability during data packet transmission or reception, or the subscriber station 10 such as a PC is switched to the power saving mode or the standby mode, the modem connection is automatically disconnected accordingly. In this case, the service user is inconvenient to go through a series of steps for the wireless Internet access again, a problem that takes a few seconds to many tens of seconds when authenticating the subscriber.

Therefore, an object of the present invention was devised to solve the above-mentioned problems, and a wireless modem capable of speeding up wireless Internet access by automatically performing internet access and subscriber authentication procedures even when modem connection is disconnected due to poor communication environment, And it provides a mobile communication terminal incorporating such a modem.

Furthermore, another object of the present invention is to provide a wireless modem capable of maintaining an internet connection so that a wireless internet service can be used immediately when a power saving mode or standby mode of a subscriber station is released, and a mobile communication incorporating such a modem. In providing a terminal.

Wireless modem according to an embodiment of the present invention for achieving the above object,

An interface unit for transmitting and receiving data with the subscriber station;

An information storage unit for storing server connection and subscriber authentication information transmitted through the interface unit;

A terminal emulator which processes the subscriber authentication procedure with the server connected to the circuit using the stored information, receives the setting information for setting the data channel according to the processing result, stores it in the information storage unit, and transitions to a data packet transmission / reception state. Wow;

And a server emulator for processing a subscriber authentication procedure with the terminal when the subscriber terminal requests a wireless internet access, and transmitting the setting information stored in the information storage unit to the subscriber terminal to transition the terminal to a data packet transmission / reception state. It is characterized by.

Furthermore, the terminal emulator automatically performs a procedure for reconnecting with the server when the set data channel is disconnected.

According to the above-mentioned feature, the terminal emulator keeps the server connection state by using the stored information (server connection information (phone number), ID, password), so that even if the terminal is released from the power saving mode or the standby mode, The service will have the advantage of being available.

In addition, even if the communication is disconnected due to poor communication environment, the terminal emulator of the present invention performs the reconnection procedure with the server automatically using the stored information, thereby reducing the reconnection time and improving user convenience. Can have

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

First, FIG. 3 illustrates a configuration of a wireless modem 70 and a neighboring block configuration according to an embodiment of the present invention. FIG. 4 is a process from an Internet access request to data packet transmission and reception in the system shown in FIG. Figures for explaining the respective are shown.

As shown in FIG. 3, the wireless modem 70 according to the embodiment of the present invention is connected to a subscriber terminal 60 such as a PC and a notebook computer as a PCMCIA type code division multiple access type wireless modem. Wireless Internet connection with the server (Remote Access Server) 80 is possible through the section.

The wireless modem 70 according to an embodiment of the present invention processes the dialing signal output from the subscriber terminal 60 or the server connection information (telephone number) stored therein, and performs call origination processing in the wireless section, and the call origination process is performed. It establishes a data channel with the server 80 connected by the server 80 and transmits and receives data packets. The wireless modem 70 further includes a server emulator 72, a terminal emulator 76, and an information storage unit 78 in addition to the general modem configuration.

The illustrated interface unit 72 serves to transmit and receive data packets with the subscriber station 60, the information storage unit 78 is connected to the server (phone number) and subscriber transmitted through the interface unit 72 Store authentication information (ID, password). The information storage unit 78 further stores data channel setting information accessed by the server emulator 74 to be described later.

The terminal emulator 76 processes the subscriber authentication procedure with the server 80 connected to the line using the information (server connection information: phone number) stored in the information storage unit 78, and sets up a data channel according to the processing result. By receiving the setting information to be stored in the information storage unit 78 transitions to the data packet transmission and reception state.

The server emulator 74, which acts as a virtual remote access server, processes a subscriber authentication procedure with the terminal 60 when a wireless Internet access request is received from the subscriber terminal 60, and transmits the information to the information storage 78. It transmits the stored setting information to the corresponding subscriber station to transition the terminal 60 to the data packet transmission and reception state.

The operation of the wireless modem 70 having the above-described configuration will be described below with reference to FIG. 4. Before the operation description, it is assumed that the terminal user, that is, the service subscriber, has registered subscriber authentication information (ID, password) in advance in the information storage unit 78 in the wireless modem 70 through a modem driver installed in a PC.

Under the above-described assumption, when the service subscriber requests wireless Internet access by inputting server access information (telephone number), the terminal emulator 76 processes a dialing signal corresponding to the server access information and transmits a call to a wireless section through the RF unit. And a line connection with the server 80 (S11). The terminal emulator 76 exchanges configuration information (maximum packet length, authentication protocol, etc.) with the server 80 through a link control protocol (LCP) (S12), and PAP (Password Authentication Protocol) / CHAP (Challenge-Handshake). Authentication protocol is exchanged through the subscriber authentication information (S13). Subscriber authentication information transmitted to the server 80 side is transmitted to the authentication server used for subscriber authentication and the result can be notified to the server 80 side.

If the subscriber authentication is normally processed, the terminal emulator 76 and the server 80 use the setting information for setting the data channel, for example, TCP / IP configuration information (IP address, etc.), CCP (Compression Control Protocol). The compression function information is exchanged (S14, S15). The terminal emulator 76, which has received the configuration information necessary for setting the data channel, stores the information in the information storage 78 and transitions to the data packet transmission / reception state.

On the other hand, the server emulator 74, if there is a wireless Internet access request (S16) from the subscriber terminal 60 processes the subscriber authentication procedure with the terminal 60. That is, the server emulator 74 exchanges configuration information (maximum packet length, authentication protocol, etc.) with the subscriber station 60 through the Link Control Protocol (LCP) (S17), and PAP (Password Authentication Protocol) / CHAP (Challenge). Exchange subscriber authentication information via Handshake Authentication Protocol (S18). In addition, the server emulator 74 exchanges TCP / IP configuration information (assigned an IP address, etc.), compression function information by the CCP (Compression Control Protocol), etc. with the subscriber terminal 60 through IP Control Protocol (IPCP) (S19). In step S20, the terminal 60 transitions to a data packet transmission / reception state.

As described above, when the subscriber station 60 transitions to the data packet transmission / reception state by the server emulator 74 and the modem 70 transitions to the data packet transmission / reception state by the terminal emulator 76, the subscriber terminal 60 The server 80 may transmit and receive data packets via the wireless modem 70.

If the communication connection is disconnected due to factors such as a communication environment, the terminal emulator 76 automatically performs the procedure S11 to S15 for accessing the server 80 again using the information stored in the information storage unit 78. Compared to the conventional method of performing reconnection by subscriber intervention, wireless Internet access can be made at high speed.

In addition, since the terminal emulator 76 of the wireless modem 70 according to the embodiment of the present invention does not transmit a blocking message to the server 80 when the subscriber station is switched to the power saving mode or the standby mode state, the modem 70 Although the connection seems to be interrupted, the actual modem 70 maintains the connection state, so even when released from the power saving mode or the standby mode has the advantage that the Internet can be used immediately.

5 illustrates a block diagram of a mobile communication terminal and a peripheral block thereof as a wireless modem according to another embodiment of the present invention. Since the mobile communication terminal is also connected to a subscriber terminal such as a notebook and can be used as a wireless modem, the present invention is provided by embedding the server emulator 93a and the terminal emulator 93b as shown in FIG. Can achieve the purpose.

As shown in FIG. 5, the mobile communication terminal 90 may be connected to a subscriber station (PC) 91 through an interface unit 91 such as a 24-pin connector. The modem 93 (for example, MSM) that controls the overall operation of the mobile communication terminal 90 processes the dialing signal output from the subscriber terminal 60 or server connection information (telephone number) stored therein. Call origination processing in a wireless section, and establishes a data channel with the server 80 to be connected by the call origination process to transmit and receive data packets between the PC 60 and the server 80 side.

The modem 93 includes an information storage unit 93c for storing the server connection and subscriber authentication information transmitted through the interface unit 91, and the server 80 and the subscriber authentication line connected using the stored information. A terminal emulator 93b which receives the setting information for setting the data channel according to the processing result and stores it in the information storage unit 93c and transitions to a data packet transmission / reception state, and a wireless Internet connection from a computer. And a server emulator 93a which processes the subscriber authentication procedure with the terminal upon request and transmits the setting information stored in the information storage unit 93c to the corresponding computer to transition the computer to the data packet transmission / reception state. do.

For reference, the server connection and subscriber authentication information may be input through an interface unit such as a keypad and stored in the information storage unit 93c.

The operation of the mobile communication terminal having the above-described modem 93 configuration will be described in detail.

First, if the service subscriber requests wireless Internet access by inputting server access information (telephone number) through a computer or a keypad, the terminal emulator 93b processes the dialing signal corresponding to the server access information and calls the wireless section through the RF unit. The outgoing signal is transmitted to establish a line connection with the server 80. The terminal emulator 93b exchanges configuration information (maximum packet length, authentication protocol, etc.) with the server 80 through the LCP, and exchanges subscriber authentication information through PAP / CHAP. Subscriber authentication information sent to the server 80 side is sent to the authentication server is used for subscriber authentication and the result is notified to the server side.

If subscriber authentication is normally processed, the terminal emulator 93b and the server 80 exchange setting information for establishing a data channel. The exchanged setting information is stored in the information storage unit 93c and transitioned to the data packet transmission / reception state.

On the other hand, the server emulator 93a processes the subscriber authentication procedure with the terminal 60 when there is a request for access to the wireless Internet from the subscriber terminal 60, and the setting information stored in the information storage unit 93c as mentioned in FIG. Is transmitted to the computer 60 to cause the computer to transition to the data packet transmission and reception state.

As described above, when the subscriber station 60 transitions to the data packet transmission / reception state by the server emulator 93a and the modem 93 transitions to the data packet transmission / reception state by the terminal emulator 93b, the subscriber terminal 60 The server 80 may transmit and receive data packets through the mobile communication terminal 90.

If the communication connection is disconnected due to factors such as a communication environment, the terminal emulator 93b automatically performs a procedure for accessing the server 80 again using information stored in the information storage unit 93c. As compared to the conventional method of performing the reconnection, the wireless Internet connection can be made at a higher speed.

In addition, since the terminal emulator 93b of the mobile communication terminal 90 according to the embodiment of the present invention does not transmit the blocking message to the server 80 even when the subscriber station is switched to the power saving mode or the standby mode state, the subscriber station When the user is released from the power saving mode or standby mode, the user can immediately use the Internet.

As described above, in the present invention, even if the communication connection is disconnected due to factors such as a communication environment, the reconnection is automatically performed by the terminal emulator, so that the wireless Internet connection is made at a higher speed than the conventional method of performing reconnection by subscriber intervention. There is an advantage that can be, and the user convenience can be obtained that much.

In addition, since the terminal emulator does not transmit the blocking message to the server even when the subscriber station is switched to the power saving mode or the standby mode, the user can immediately use the Internet even when the subscriber terminal is released from the power saving mode or the standby mode. Has the possible advantages.

On the other hand, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

Claims (4)

delete In the wireless modem capable of packet transmission and reception, An interface unit for transmitting and receiving data with the subscriber station; An information storage unit for storing server connection and subscriber authentication information transmitted through the interface unit; Process the subscriber authentication procedure with the circuit-connected server by using the stored information, receive the setting information for setting the data channel according to the processing result, store it in the information storage unit and transition to the data packet transmission and reception state, A terminal emulator which automatically performs a procedure for reconnecting with the server when a data channel is disconnected; And a server emulator for processing a subscriber authentication procedure with the terminal when the subscriber terminal requests a wireless internet access, and transmitting the setting information stored in the information storage unit to the subscriber terminal to transition the terminal to a data packet transmission / reception state. Wireless modem characterized in that. delete A mobile communication terminal with a built-in modem and wireless internet access, The modem is: An information storage unit for storing server connection and subscriber authentication information transmitted through the interface unit; Process the subscriber authentication procedure with the circuit-connected server by using the stored information, receive the setting information for setting the data channel according to the processing result, store it in the information storage unit and transition to the data packet transmission and reception state, A terminal emulator which automatically performs a procedure for reconnecting with the server when a data channel is disconnected; And a server emulator for processing a subscriber authentication procedure with the terminal upon request from the computer, and transferring the setting information stored in the information storage unit to the corresponding computer to transition the computer to a data packet transmission / reception state. Mobile communication terminal.

Images