KR100453234B1 - Roaming service realization method of W-LAN and PCS/IMT2000 using dual-mode terminal - Google Patents

Abstract

The present invention relates to a roaming service implementation method of a wireless LAN network and a mobile telephone network through a dual mode terminal.

The present invention is a service implementation method for connecting so that communication is possible even in the service area of different communication providers, the dual-mode terminal detects and compares the signal level value received through the wireless LAN network or mobile phone network while generating a large outgoing signal Authenticating a dual mode terminal user when the dual mode terminal is connected to a wireless LAN network when the signal level value is detected; Receiving any one of a telephone call mode and an internet access mode selected by the user; When a telephone call mode is selected, receiving a telephone number input from the dual mode terminal; Connecting the dual mode terminal to a public telephone network through a gateway; Detecting whether a wireless LAN communication is possible by detecting a signal level value during a connected user-to-user call; And connecting the dual-mode terminal to the mobile telephone network if it is determined that the wireless LAN communication is disabled.

Description

Roaming service realization method of W-LAN and PCS / IMT2000 using dual-mode terminal

The present invention relates to a roaming service implementation method of a wireless LAN network and a mobile telephone network, and more particularly, to a wireless LAN network and a mobile telephone network through a dual mode terminal capable of optimal service according to a connection location, communication quality, or required service of a dual mode terminal user. It relates to a roaming service implementation method.

Currently, not only voice calls are provided through mobile telephone networks (mobile communication networks), but also services such as information retrieval, e-mail transmission, and short message transmission are connected to the Internet. However, there is a problem that the service fee is high and the data transmission speed is slow. In addition, in the case of the wireless Internet service, there is a problem in that various multimedia services, such as voice, text, and video, cannot be provided because the content is limited to a text form.

Meanwhile, the public wireless LAN network provides various multimedia services at a transmission speed of an average of 2 Mbps and a maximum of 5 Mbps to compensate for problems occurring in a mobile telephone network. However, there is a problem that a service shadow area occurs due to the limitation of the service distance.

Accordingly, the present invention has been made to solve the above problems, a wireless LAN network and a mobile telephone network through a dual-mode terminal that can provide an optimal service according to the connection location, communication quality, or required services of the user of the dual-mode terminal The purpose of this is to provide a roaming service implementation method.

In order to achieve the above object, according to the present invention, a service implementation method for allowing communication within a service area of different communication providers is possible. A dual mode terminal detects a signal level value received through a wireless LAN network or a mobile telephone network. Authenticating a dual-mode terminal user when the dual-mode terminal is connected to a wireless LAN network when a large signal level value is detected when an outgoing signal is generated. Receiving any one of a telephone call mode and an internet access mode selected by the user; When a telephone call mode is selected, receiving a telephone number input from the dual mode terminal; Connecting the dual mode terminal to a public telephone network through a gateway; Detecting whether a wireless LAN communication is possible by detecting a signal level value during a connected user-to-user call; And connecting the dual mode terminal to the mobile telephone network if it is determined that the wireless LAN communication is disabled. In addition, according to the present invention, a service implementation method for enabling communication within a service area of different communication providers is possible. The dual mode terminal detects and compares signal level values received through a wireless LAN network or a mobile telephone network, and connects to a network where a large signal level value is detected when an outgoing signal is generated. Authenticating the dual mode terminal user; Receiving any one of a telephone call mode and an internet access mode selected by the user; When the Internet access mode is selected, receiving URL information input from the dual mode terminal; Connecting the dual mode terminal to an internet network through a router; Checking whether the wireless LAN communication is possible by checking a signal level value while being connected and providing an Internet service; And connecting the dual mode terminal to the mobile telephone network if it is determined that the wireless LAN communication is disabled. In addition, according to the present invention, a service implementation method for enabling communication within a service area of different communication providers is possible. The dual mode terminal detects and compares signal level values received through a wireless LAN network or a mobile telephone network, and connects to a network where a large signal level value is detected when an outgoing signal is generated. Receiving the other party's telephone number input from the dual mode terminal; Checking information (location and state) of the dual mode terminal; Authenticating the dual mode terminal user; Providing a telephone call or an internet access service to the dual mode terminal; Checking whether the mobile phone communication is possible by checking a signal level value while providing a telephone call or an internet access service; And connecting the dual mode terminal to the wireless LAN network when it is determined that the mobile telephone communication is disabled.

1 is a schematic diagram of a dual-mode terminal and a wireless LAN or mobile telephone network connection according to the present invention;

2 is a configuration example of a dual mode terminal according to the present invention;

3 is a flowchart illustrating a roaming service implementation according to the present invention;

4 is a flowchart illustrating a roaming service implementation in which a dual mode terminal is connected to a wireless LAN according to the present invention;

5 is a flowchart illustrating a roaming service implementation in which a dual mode terminal is connected to a mobile telephone network according to the present invention.

* Explanation of symbols for main parts of the drawings

10: dual mode terminal 11: PDA module

12 wireless module 13 received signal comparison detection unit

14: mobile phone module 20: AP

30,120: Internet network 40: Network operation / management center

50: authentication / billing server 60: router

70: gateway 80: base station

90: base station control station 100: mobile switching center

110: gateway switching center 130: PSTN network

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

1 is a schematic diagram of a dual mode terminal and a wireless LAN network or a mobile telephone network (mobile communication network) according to the present invention. The dual mode terminal 10 may be connected to a wireless LAN network or a mobile telephone network. First, the dual mode terminal 10 passes through the router 60 via an AP 20 (Access Point), an internet network 30, a network operation / management server 40, and an authentication / billing server 50 of a wireless LAN network. It is connected to the PSTN network 130 (public telephone network) through the Internet network 120 or the gateway 70 through. The AP 20 refers to a wireless LAN base station.

The dual mode terminal 10 performs wireless LAN communication with the AP 20 according to IEEE802.11b or IEEE802.1x standard. The network operation / management server 40 comprehensively manages the wireless LAN network, and the authentication / billing server 50 manages user registration, authentication, and billing related information. The gateway 70 means a VoIP gateway.

Meanwhile, the dual mode terminal 10 passes through a base station 80 (BTS), a base station control station (90: BSC), a mobile switching center (100: MSC), and a gateway switching center (110: IGS) of a mobile telephone network. 120 or the PSTN network 130. The dual mode terminal 10 communicates with the base station 80 according to the IS-95A, B and C standards.

The authentication / billing information managed by the authentication / billing server 50 may be shared in real time by the mobile switching center 100 and the gateway switching center 110 of the mobile telephone network. The dotted line shown in the figure is a concept of sharing authentication / billing information through communication according to a separate protocol. For example, in the authentication process of the wireless LAN network, authentication information such as a user ID, a password, a MAC, and an IP is stored and managed in the authentication / billing server 50. In the authentication process of the mobile telephone network, authentication information such as user (subscriber) number and terminal unique number (ESN) is stored in the HLR (Home Location Register) / VLR (Visit Location Register) database in the mobile switching center 90 and managed. do. By exchanging these authentication / billing-related information and implementing an integrated authentication / billing service, it is possible to solve the double notice or service inconvenience of the user (subscriber) use of the service.

2 is a dual mode terminal configuration example according to the present invention, and includes a PDA module 11, a wireless module 12, a received signal comparison detection unit 13, and a mobile telephone module 14. The wireless module 12 performs a function of accessing a wireless LAN network, and includes a wireless LAN antenna, an RF-IF converter, an IF IQ modulator / demodulator, and a baseband processor. The mobile telephone module 14 performs a function of accessing a mobile telephone network, and includes a mobile telephone antenna, an RF module, and a baseband processor. Since the wireless module 12 and the mobile phone module 13 are generally known technologies, detailed descriptions thereof will be omitted. The received signal comparison detection unit 13 detects and compares a signal level value received through the wireless module or the mobile phone module, and compares overall reception states such as a received signal indication value (RSSI), a signal level, and an SNR. Done. The PDA module 11 connects to either a wireless LAN network or a mobile telephone network to perform a function of using a communication service.

FIG. 3 is a flowchart of a roaming implementation service according to the present invention, in which a roaming service is connected to enable communication within a service area of different communication providers. The present invention relates to a method for implementing a roaming service between a wireless LAN network and a mobile telephone network (PCS / IMT2000). Referring to the drawings, the dual mode terminal 10 detects and compares signal level values received through a wireless LAN network or a mobile telephone network (S200). When an outgoing signal (connection request) is generated from the dual mode terminal, the operation S200 is performed. The dual mode terminal is connected to the network through which a large level value (good reception state) is detected (S210). In the above description, the dual mode terminal 10 is automatically connected to the optimum communication network by comparing the level values, and the priority is preferably the wireless LAN network.

On the other hand, it is more preferable to display the reception state including the signal level value detected in the step S200 on the display window to provide a manual roaming mode button that allows the user to manually select the access network while viewing the reception state. At this time, it is preferable to perform a connection module of a network which is not connected regardless of automatic or manual processing to switch to a reception standby mode in which only a minimum power is supplied.

4 is a roaming implementation service flow diagram of a dual mode terminal connected to a wireless LAN network according to the present invention. When the dual mode terminal 100 is connected to a wireless LAN network, the dual mode terminal authenticates a user (S300). May include an ID, password, phone number, terminal number, IP, MAC, and the like. Subsequently, the user receives one of a telephone call or an internet access mode selected by the user (S310). When the telephone call mode is selected, a telephone number of a counterpart who wants to make a call input from the dual mode terminal is received (S320).

Next, the dual mode terminal 10 is connected to the public telephone network 120 through the gateway 70, and periodically detects the signal level value while connected and talks to check whether the WLAN communication is possible (S330). -S360). If it is determined that WLAN communication is disabled, the dual mode terminal roams to the mobile telephone network (S370). The telephone call is an Internet telephone form by VoIP.

On the other hand, when the Internet access mode is selected in step S310 receives the URL information input from the dual-mode terminal (10) (S380). Subsequently, the dual mode terminal is connected to the Internet via a router (S390 and S400).

Next, it is checked whether the wireless LAN communication is possible by checking the signal level value while the Internet service is provided (S410, S420). If it is determined that WLAN communication is disabled, the dual mode terminal roams to the mobile telephone network (S430).

5 is a roaming implementation service flow diagram in which the dual mode terminal 10 according to the present invention is connected to a mobile telephone network, and receives a counterpart phone number input from the dual mode terminal when the dual mode terminal is connected to the mobile telephone network ( S500). Then, the VLR / HLR is checked through this information of the location and state of the dual-mode terminal (S510).

Subsequently, the dual mode terminal user is authenticated, and a telephone call or an internet access service is provided to the dual mode terminal (S520 and S530). In operation S540, it is possible to check whether the mobile phone communication is possible by checking a signal level value while providing a telephone call or an internet access service. If it is confirmed that the mobile phone communication is disabled roaming the dual-mode terminal to the wireless LAN (S550).

On the other hand, if the user selects the manual roaming mode button provided because the service is not available through the currently connected network as in step S360, S420, or S540, the connection to another network or the current state is stopped by the user's selection. It is desirable to make a choice.

According to the present invention, the user can select and connect to a wireless LAN network or a mobile telephone network using a dual mode terminal, thereby enabling optimal service. That is, the wireless LAN service area may use the wireless Internet service, the wireless Internet phone (VoIP) service, and the video service, etc. If the wireless LAN network service area is outside, the mobile phone network may use the voice call service and the wireless Internet. . Therefore, it is possible to create a demand for the wireless Internet by improving the quality of service between the wireless LAN network and the mobile phone network, and to establish a high-speed Internet network.

Claims (7)

delete delete In the service implementation method for connecting to enable communication in the service area of different communication providers, The dual mode terminal detects and compares signal level values received through a wireless LAN network or a mobile telephone network, and accesses a network where a large signal level value is detected when an outgoing signal is generated. When the dual mode terminal is connected to a wireless LAN network, Authenticating a dual mode terminal user; Receiving any one of a telephone call mode and an internet access mode selected by the user; If phone call mode is selected, Receiving a telephone number input from the dual mode terminal; Connecting the dual mode terminal to a public telephone network through a gateway; Detecting whether a wireless LAN communication is possible by detecting a signal level value during a connected user-to-user call; And And connecting the dual mode terminal to the mobile telephone network if it is determined that the wireless LAN communication is disabled. The roaming service implementation method of the wireless LAN network and the mobile telephone network through the dual mode terminal. According to claim 3, The roaming service implementation method, While the dual mode terminal is connected to the wireless LAN network and communicating, A method for implementing roaming service between a wireless LAN network and a mobile telephone network through a dual mode terminal, characterized in that when the incoming signal is received through the mobile telephone network, the dual mode terminal connects the mobile telephone network after the WLAN communication is terminated. In the service implementation method for connecting to enable communication in the service area of different communication providers, The dual mode terminal detects and compares signal level values received through a wireless LAN network or a mobile telephone network, and accesses a network where a large signal level value is detected when an outgoing signal is generated. When the dual mode terminal is connected to a wireless LAN network, Authenticating a dual mode terminal user; Receiving any one of a telephone call mode and an internet access mode selected by the user; If the Internet connection mode is selected, Receiving URL information input from the dual mode terminal; Connecting the dual mode terminal to an internet network through a router; Checking whether the wireless LAN communication is possible by checking a signal level value while being connected and providing an Internet service; And And connecting the dual mode terminal to the mobile telephone network if it is determined that the wireless LAN communication is disabled. The roaming service implementation method of the wireless LAN network and the mobile telephone network through the dual mode terminal. The method of claim 5, wherein the roaming service implementation method comprises: While the dual mode terminal is connected to the wireless LAN network and communicating, A method for implementing roaming service between a wireless LAN network and a mobile telephone network through a dual mode terminal, characterized in that when the incoming signal is received through the mobile telephone network, the dual mode terminal connects the mobile telephone network after the WLAN communication is terminated. In the service implementation method for connecting to enable communication in the service area of different communication providers, The dual mode terminal detects and compares signal level values received through a wireless LAN network or a mobile telephone network, and accesses a network where a large signal level value is detected when an outgoing signal is generated. When the dual mode terminal is connected to a mobile telephone network, Receiving the other party's telephone number input from the dual mode terminal; Checking information (location and state) of the dual mode terminal; Authenticating the dual mode terminal user; Providing a telephone call or an internet access service to the dual mode terminal; Checking whether the mobile phone communication is possible by checking a signal level value while providing a telephone call or an internet access service; And And connecting the dual mode terminal to the wireless LAN network if it is determined that the mobile telephone communication is disabled.