JP4630275B2 - Wireless communication terminal and wireless communication method - Google Patents

Description

  The present invention relates to a wireless communication terminal and a wireless communication method for transmitting and receiving audio data, for example.

The Internet telephone network system is a system that transmits and receives audio data via the Internet including a wireless network. An Internet telephone network system has a form in which a wireless communication terminal is arranged at the end.
In the Internet telephone network system, a calling wireless communication terminal performs wireless communication. The called-side wireless communication terminal performs wireless communication.
In the Internet telephone network system, communication is performed by assigning an IP (Internet Protocol) address to a calling-side wireless communication terminal and a called-side wireless communication terminal. Here, the IP address is an address for identifying a transmission source terminal and a transmission destination terminal that communicate with each other using an Internet communication protocol. As the Internet communication protocol, TCP / IP (Transmission Control Protocol / Internet Protocol), UDP (User Datagram Protocol), or the like is used. TCP confirms whether the data has arrived at the other party, but UDP does not perform confirmation, so reliability is low. However, UDP has a higher transfer rate than TCP. UDP is generally used for streaming and the like.
The IP address includes a global IP address having a unique identification characteristic worldwide and a local IP address (also referred to as a private IP address) uniquely set by the user.
Hereinafter, the term “IP address” simply includes both types of IP addresses.
There has already been a patent application for a communication network system capable of performing communication even through a firewall, a local area network using a local IP address, or dynamically assigning an IP address.
For example, the communication system of the communication network system disclosed in International Publication WO 02/098075 is called an HTTP-based Conference Application Protocol (HCAP) system. HTTP (HyperText Transfer Protocol) is a protocol used for transmitting and receiving data between a web server and a browser of a terminal.
In this HCAP system, a wireless or wired network environment or a network connection environment is provided. The calling-side wireless communication terminal and the called-side wireless communication terminal perform wireless communication. The network device on the calling side and the called side perform wireless or wired communication.
In this HCAP system, a session management server connected to the network performs control management of outgoing and incoming calls between the calling wireless communication terminal and the called wireless communication terminal.
In some cases, voice data is transmitted and received between the calling wireless communication terminal and the called wireless communication terminal via a communication relay server.
There is a case where the network device on the called side is arranged in the lower layer of the line connection device of ADSL (Asymmetric Digital Subscriber Line). For this reason, the address of the called wireless communication terminal is dynamically assigned, or the local IP address is assigned to the called wireless communication terminal.
As a result, a network environment is created in which the calling wireless communication terminal cannot directly connect to the called wireless communication terminal. In such a case, in this HCAP method, the communication relay server selects a communication means suitable for the network environment on the called side, and connects the calling side wireless communication terminal and the called side wireless communication terminal to each other. Connecting.
In addition to ADSL, there are other Internet connection environments such as CATV (Cable Television), FTTH (Fiber To The Home), and Internet apartments. In all these Internet connection environments, wireless communication terminals are arranged in a lower layer depending on the setting of the router device. Also in this case, the address of the wireless communication terminal is dynamically assigned, or a local IP address is assigned to the wireless communication terminal.
As a result, a network environment is created in which the calling wireless communication terminal cannot directly connect to the called wireless communication terminal. Even in such a case, in this HCAP method, the communication relay server selects a communication means suitable for the network environment on the called side and connects the calling side wireless communication terminal and the called side wireless communication terminal. To do.
When a firewall is installed, communication using the Internet protocol is restricted. Even when a private IP address area or a dynamic IP address is assigned, communication using the Internet protocol is limited. However, the network communication system based on the HCAP method enables communication based on the Internet protocol even when a firewall that has not been used so far is installed. In addition, the network communication system based on the HCAP scheme enables communication using the Internet protocol when a private IP address area or a dynamic IP address is assigned.
On the other hand, H.264 has been standardized by a standardization organization ITU-T (International Telecommunication Union-Telecommunication sector). 323 and existing similar standards such as SIP (Session Initiation Protocol) and MGCP (Media Gateway Control Protocol) standardized by the standardization organization IETF (Internet Engineering Task Force) exist. Network communication systems are also widespread.
SIP is an application layer control protocol of an OSI (open systems interconnection) reference model. SIP is a control protocol that allows an application such as an Internet telephone to set, change, or disconnect a call.
MGCP is a protocol for converting a voice signal transmitted by a public switched telephone network (PSTN) into a data packet transmitted on the Internet.
As described above, in the conventional HCAP system and the existing standard network communication system, there is a form in which a wireless communication terminal is arranged at the end. For example, in an Internet telephone network system, voice data may be transmitted / received via the Internet including a wireless network.
However, in the conventional Internet telephone network system, efficient communication is not considered in accordance with the base station to which the wireless communication terminal is connected.
An object of the present invention is to provide a system capable of efficiently communicating between a terminal and a base station in an Internet telephone network system.

A wireless communication terminal according to the present invention, a terminal authentication information storage unit that stores a plurality of terminal authentication information for obtaining authentication permission of communication from a base station,
A terminal authentication information transmission control unit that attempts to access the base station using at least one of the terminal authentication information stored in the terminal authentication information storage unit;
A terminal authentication information validity confirmation unit for confirming the validity of the terminal authentication information used by the terminal authentication information transmission control unit according to the success or failure of access to the base station from the terminal authentication information transmission control unit;
And a communication unit that communicates with the base station using the terminal authentication information whose validity is confirmed by the terminal authentication information validity confirmation unit.
In addition, the terminal authentication information storage unit stores communication specifications as part of the terminal authentication information,
The wireless communication terminal further includes:
A protocol storage unit for storing a plurality of types of protocol execution routines;
The protocol corresponding to the communication specification included in the terminal authentication information whose validity has been confirmed by the terminal authentication information validity confirmation unit is selected from a plurality of types of protocols stored in the protocol storage unit and selected. And a protocol start control unit that starts communication with a base station using a protocol.
The wireless communication terminal further includes:
A terminal authentication information priority designating unit for designating priority for a plurality of terminal authentication information stored in the terminal authentication information storage unit;
The terminal authentication information transmission control unit selects one terminal authentication information from the plurality of terminal authentication information according to the priority order designated by the terminal authentication information priority designation unit, and tries to access the base station. Features.
The wireless communication terminal further includes:
A terminal authentication information search unit for searching for terminal authentication information from a plurality of terminal authentication information stored in the terminal authentication information storage unit;
The terminal authentication information transmission control unit accesses the base station using the terminal authentication information searched by the terminal authentication information search unit.
Further, the terminal authentication information storage unit as terminal authentication information,
Terminal authentication information for receiving authentication from a base station connected to the local area network in the organization installed in the organization,
Terminal authentication information for receiving authentication from a base station connected to a public local area network accessible to the public;
Terminal authentication information for receiving authentication from a base station connected to a private local area network installed by an individual,
It stores at least any two or more terminal authentication information for receiving authentication from a base station connected to a free local area network that can be freely accessed without authentication.
Further, the terminal authentication information storage unit stores a plurality of types of protocol types for the wireless local area network as terminal authentication information,
The terminal authentication information transmission control unit accesses the base station using a plurality of types of protocols for the wireless local area network.
A wireless communication method for a wireless communication terminal according to the present invention stores a plurality of terminal authentication information for obtaining communication authentication permission from a base station in a terminal authentication information storage unit,
Try to access the base station using at least one of the plurality of terminal authentication information stored in the terminal authentication information storage unit,
Confirm the validity of the terminal authentication information based on the success or failure of access to the base station,
The terminal authentication information whose validity has been confirmed is used to communicate with the base station.
Further, the wireless communication method according to the present invention stores the communication specification as part of the terminal authentication information,
The wireless communication method further includes:
Multiple types of protocol execution routines are stored in the protocol storage unit,
Select the protocol corresponding to the communication specification included in the terminal authentication information whose validity has been confirmed from the multiple types of protocols stored in the protocol storage unit, and start communication with the base station using the selected protocol It is characterized by doing.
The wireless communication method further includes:
Specify the priority for a plurality of terminal authentication information stored in the terminal authentication information storage unit,
One terminal authentication information is selected from a plurality of terminal authentication information according to the specified priority order, and access to the base station is attempted.
The wireless communication program according to the present invention stores a plurality of terminal authentication information for obtaining communication authentication permission from a base station in a terminal authentication information storage unit,
A process of attempting to access the base station using at least one of the plurality of terminal authentication information stored in the terminal authentication information storage unit,
A process for confirming the validity of the terminal authentication information depending on the success or failure of access to the base station,
The central processing unit of the wireless communication terminal is caused to execute a process of communicating with the base station using the terminal authentication information whose validity has been confirmed.

FIG. 1 is a system configuration diagram of the Internet communication system according to the first embodiment.
FIG. 2 is a hardware configuration diagram of the wireless communication terminal 10.
FIG. 3 is a block diagram of the wireless communication terminal 10.
FIG. 4 is a diagram illustrating an example of the terminal authentication information 80 stored in the terminal authentication information storage unit 71.
FIG. 5 is a flowchart showing a specific operation of the wireless communication terminal 10.
FIG. 6 is a flowchart showing a specific operation of the wireless communication terminal 10.
FIG. 7 is a system configuration diagram when the radio communication terminal 10 and the radio communication terminal 19 make an extension-extension call.
FIG. 8 is a system configuration diagram in the case where the wireless communication terminal 10 and the telephone 14 make an extension-outside call.
FIG. 9 is a system configuration diagram when the wireless communication terminal 10 and the wireless communication terminal 19 make an extension-Internet call.
FIG. 10 is a diagram illustrating a display device such as a liquid crystal display panel of the wireless communication terminal 10.
FIG. 11 is a diagram illustrating a state in which one wireless communication terminal 10 changes the priority of terminal authentication information depending on a location.

In the embodiment described below, an Internet telephone network system will be described. In the Internet telephone network system of the embodiment described below, terminal authentication information is communicated between a terminal and a base station. The terminal switches the communication means of the terminal based on the information that has received connection permission from the base station. The terminal communicates with efficient communication means according to the base station to which the terminal is connected. That is, in the embodiment described below, an Internet telephone that communicates with efficient communication means according to a connected base station will be described.
Here, the terminal is a wireless communication terminal that transmits and receives data having real-time characteristics. For example, a typical terminal is a wireless communication terminal that transmits and receives audio data. However, audio data is an example of data having real-time characteristics, and is not limited to audio data, and image data for moving image display and three-dimensional graphics display can be similarly applied.
In addition, as a form of the wireless communication terminal of the embodiment described below, a form such as a wireless telephone form, a telephone form using a portable personal computer, or a telephone form using an electronic notebook is applicable.
In the embodiment described below, a case will be described in which the communication method of the communication network system disclosed in International Publication WO02 / 098075 is used. That is, the case where the HTTP-based Conferencing Application Protocol (HCAP) method is mainly used will be described. Here, the specification and drawings of International Publication No. WO02 / 098075 are incorporated into this application.
However, the embodiment of the present invention is not limited to the HCAP method as an Internet communication method, and the present invention is effective in other communication methods and protocols.
Also, a combination of the HCAP method and another communication method / protocol may be used. For example, a combination of the HCAP method and the SIP method may be used.
If the terminal is a wireless communication terminal in both the HCAP method and the existing standard network communication system, the wireless radio signal is received within the reach of the wireless radio signal from the terminal and connected to the network. A device is needed. Hereinafter, this apparatus is called a base station or an access point.
The terminal holds an IP address and performs voice communication using the IP address as one of identification information for transmission and reception. The terminal also holds network connection permission information other than the IP address. When the terminal and the base station communicate, the base station communicates this network connection permission information between the terminal and the base station in order to identify permission / non-permission of the connection of the terminal. Hereinafter, this network connection permission information is referred to as terminal authentication information.
In order to perform Internet communication in a calling-side wireless communication terminal or a called-side wireless communication terminal, a function for making a call or a call based on the IP protocol is required. A device that provides a function for performing this Internet communication (call) is described as an Internet communication adapter (or Internet call adapter). This Internet communication adapter may have a separate housing and be connected (externally attached) to the wireless communication terminal, or may be attached to and detached from the wireless communication terminal via a connector. Alternatively, it may be incorporated in advance on a circuit board inside the casing of the wireless communication terminal.
When the calling wireless communication terminal and the called wireless communication terminal perform voice data distribution using HTTP (HyperText Transfer Protocol), the existence of a firewall becomes a problem. In order to deal with this problem firewall, a server for relaying between the calling wireless communication terminal and the called wireless communication terminal is installed. Hereinafter, this server is referred to as a “communication relay server” or a “voice relay server”.
When communication data (voice data) from a communication adapter is relayed by a communication relay server, it is necessary to install a plurality of communication relay servers in the communication network system and distribute the load to each communication relay server. . Therefore, a management server that manages the communication adapter and the communication relay server is installed. Hereinafter, this management server is referred to as a “session management server”.
The communication network system includes a plurality of session management servers. For each session management server, a wireless communication terminal managed by the session management server is determined in advance. When there are a plurality of session management servers, the wireless communication terminal needs to know which session management server it manages. Therefore, an inquiry as to which session management server the session management server managing the wireless communication terminal is received from the wireless communication terminal, and the session management server that manages the wireless communication terminal is notified to the wireless communication terminal. Provide a notification server. Hereinafter, this notification server is referred to as a “designated notification server”.
Embodiment 1 FIG.
In the first embodiment, an example of an Internet communication system that transmits communication data such as voice data from a calling-side wireless communication terminal to a called-side wireless communication terminal using the Internet will be described.
FIG. 1 is a system configuration diagram of the Internet communication system according to the first embodiment.
The existing mobile phone 12 communicates with the mobile phone base station 41. The wireless communication terminal 10 communicates with the mobile phone base station 41. The mobile phone base station 41 communicates with the existing public line telephone 13 via the public line 40. The public line 40 communicates with the telephone 14 via the IP telephone terminal 20. Here, the IP telephone terminal 20 is an example of an Internet communication adapter. Hereinafter, the mobile phone base station 41 is also simply referred to as a base station 41.
The wireless communication terminal 10 can also communicate with the wireless LAN compatible ISP server 31 via the wireless LAN repeater 29. The wireless LAN compatible ISP server 31 can communicate with the operation management server 33 and the ISP operation relay server 34 via the Internet 30. Further, the wireless LAN compatible ISP server 31 can communicate with the telephone 14 via the IP telephone terminal 20.
The Internet 30 and the public line 40 can communicate with each other via the IP telephone gateway 42 and the SIP server 32.
The mobile phone base station 41 and the wireless LAN compatible ISP server 31 constitute a wireless communication terminal 19.
As shown in FIG. 1, the wireless communication terminal 10 can communicate with both the mobile phone base station 41 and the wireless communication terminal 19. Hereinafter, a mechanism for determining which of the mobile phone base station 41 and the wireless communication terminal 19 the wireless communication terminal 10 communicates with will be described.
FIG. 2 is a hardware configuration diagram of the wireless communication terminal 10.
2, the wireless communication terminal 10 includes a CPU (Central Processing Unit) 137 that executes a program.
The CPU 137 is connected to a ROM (read only memory) 139, a RAM (random access memory) 140, a communication board 144, a display device 141, a K / B (keyboard) 142, and a nonvolatile memory 157 via a bus 138. An antenna 199 is provided at the end of the communication board 144.
Further, when the wireless communication terminal 10 is a notebook personal computer, it may be connected to a mouse 143, an FDD (Flexible Disk Drive) 145, a magnetic disk device 146, a CDD 186, a printer device 187, and a scanner device 188.
For example, the RAM 140 is an example of a volatile storage unit, and is an example of a storage unit. The ROM 139, the magnetic disk device 146, and the nonvolatile memory 157 are examples of a nonvolatile storage unit, and are examples of the storage unit.
For example, the communication board 144, the K / B 142, and the FDD 145 are examples of the input unit.
For example, the communication board 144 and the display device 141 are examples of an output unit.
Here, the communication board 144 has a function capable of wireless communication. The communication board 144 may be further connected to the FAX machine 310, the telephone 320, the LAN 105, and the like by a connection cable.
The communication board is not limited to the wireless LAN, and may be connected to the Internet or a WAN (wide area network). When connected to the Internet or WAN, the wireless communication terminal 10 is connected to the Internet or WAN via a wireless base station or ISP (Internet Services Provider).
An operating system (OS) 147, a window system 148, a program group 149, and a file group 150 are stored in the nonvolatile memory 157 or the ROM 139. The program group is read and executed by the CPU 137, the OS 147, and the window system 148.
The program group 149 stores a program for executing a function described as “˜unit” in the description of the embodiment described below.
In the file group 150, information and data stored in “˜storage unit” described in the description of the embodiment described below is stored as “˜file”. Information and data are recorded on other recording media such as ROM 139 and RAM 140. Alternatively, it is transmitted through a signal line or other transmission medium.
In addition, what is described as “to part” in the description of the embodiment described below may be realized by firmware stored in the nonvolatile memory 157 or the ROM 139. Alternatively, it may be implemented by software alone, hardware alone, a combination of software and hardware, or a combination of firmware.
In addition, what is described as “˜unit” in the following description of the embodiment can be processed by a program. The program is stored in other recording media such as the ROM 139 and the RAM 140, and is read and executed by the CPU.
Therefore, an invention of a method and an invention of a program for executing the operation of each unit described below are also possible.
FIG. 3 is a block diagram of the wireless communication terminal 10. FIG. 3 shows logical components necessary for the wireless communication terminal 10 to operate as an Internet wireless communication terminal.
Hereinafter, the Internet radio communication terminal 10 is also simply referred to as a radio communication terminal 10 (or radio call terminal).
The Internet wireless communication terminal 10 according to this embodiment performs data communication using the Internet.
The wireless communication terminal 10 includes a communication unit 70 that communicates with a partner terminal via a base station.
In addition, the wireless communication terminal 10 includes a terminal authentication information storage unit 71 that stores at least two or more pieces of terminal authentication information. Here, the terminal authentication information refers to data transmitted from the terminal to the base station in order for the terminal to start communication with the base station.
Further, the wireless communication terminal 10 includes a terminal authentication information transmission control unit 72 that controls the order of sending a plurality of terminal authentication information. The terminal authentication information sending control unit 72 sends the terminal authentication information to the base station in the order of sending the terminal authentication information defined in advance.
The wireless communication terminal 10 also includes a terminal authentication information validity confirmation unit 73 that confirms whether or not the terminal authentication information transmitted to the base station is recognized as valid by the base station.
In addition, the wireless communication terminal 10 includes a terminal authentication information priority specifying unit 74 that controls the order of sending a plurality of terminal authentication information of the terminal authentication information transmission control unit 72. For example, the terminal authentication information priority specifying unit 74 controls the order of sending terminal authentication information by allowing the user to specify the priority of the terminal authentication information in advance.
The wireless communication terminal 10 includes a terminal authentication information search unit 75 that can efficiently search the terminal authentication information stored in the terminal authentication information storage unit 71. For example, the terminal authentication information search unit 75 efficiently searches from identification information indicating a location included in the terminal authentication information.
The wireless communication terminal 10 also includes a protocol storage unit 76 that stores a routine for executing a plurality of Internet communication protocols (HCAP, SIP, TCP, UDP, etc.).
The wireless communication terminal 10 also includes a protocol start control unit 77 that starts communication using a protocol selected from a plurality of protocols. The wireless communication terminal 10 uses the selected Internet communication protocol and starts the communication by controlling the protocol start control unit 77 according to the parameters necessary for the protocol start control. Further, the protocol start control unit 77 starts communication according to the validity confirmed by the terminal authentication information validity confirmation unit 73.
Further, the wireless communication terminal 10 includes an input unit 78 such as a numeric keypad. The wireless communication terminal 10 also includes an output unit 79 such as a display device (liquid crystal display panel) or a warning sound generator (speaker).
Further, the wireless communication terminal 10 includes a position specifying unit 68 such as GPS (Global Positioning System). The wireless communication terminal 10 can know a nearby access point (base station) by incorporating the position specifying unit 68. The wireless communication terminal 10 can perform efficient authentication processing by transmitting from authentication information of a nearby access point (base station).
The wireless communication terminal 10 includes a local IP address resolution unit 69 that performs Internet communication using the UDP protocol. Even if the global IP address is not fixedly or dynamically assigned by the local IP address resolution unit 69, the wireless communication terminal 10 can communicate over the existing NAT router.
FIG. 4 is a diagram illustrating an example of the terminal authentication information 80 stored in the terminal authentication information storage unit 71.
The terminal authentication information 80 includes items of an identifier 81, an identification tag 82 (setting mode 83), an Internet communication protocol name 84 (IP telephone protocol name 85), and a protocol start control parameter 86.
In the identifier 81, an identifier for establishing the wireless communication terminal 10 as a terminal using the wireless communication terminal 19 is recorded. For example, the identifier 81 records the manufacturing number, serial ID, or individual IP telephone number of the wireless communication terminal 10. Further, for example, a mobile phone number is recorded as the mobile phone identifier. A typical example of this mobile phone is PHS (registered trademark). PHS (Personal Handyphone System) is one of mobile phone systems that simplify equipment and specifications and keep call charges low.
The identification tag 82 is identification data indicating the setting mode. Here, a case where the wireless communication terminal 10 has the following six modes is shown.
1. Organization mode
The intra-organization mode is a mode for receiving authentication from a base station connected to an intra-organization local area network installed in the organization. An organization is a company or a company.
In FIG. 4, there are, for example, a premises A mode and a premises B mode as the in-organization mode. The premises A mode is a mode for receiving authentication from a base station connected to a head office local area network installed at the Tokyo head office, for example. The on-premise B mode is a mode for receiving authentication from a base station connected to a factory local area network installed in the Osaka factory, for example.
2. Public mode
The public mode is a mode for receiving authentication from a base station connected to a public local area network accessible to the public. In the public mode, registration is performed for each ISP and for each base station service vendor.
In FIG. 4, there are a public A mode and a public B mode as public modes. The public A mode is a mode for receiving authentication from a base station connected to a local area network operated by the wireless LAN vendor A for public use, for example. The public B mode is a mode for receiving authentication from a base station connected to a local area network operated by the wireless LAN vendor B for public use, for example.
3. Home mode
The home mode is a mode for an individual to receive authentication from a base station connected to a private local area network installed at home.
4). Free mode
The free mode is a mode for receiving authentication from a base station connected to a free local area network that can be freely accessed by anyone without authentication.
5. Mobile phone IP phone mode
This mode is for making an IP phone call over the Internet.
6). Analog phone mode of mobile phone
This is a mode for making existing analog calls. This mode may be a mode for making a digital phone call.
As described above, the wireless communication terminal 10 can perform mode setting at each access location.
In the Internet communication protocol name 84, an available IP telephone protocol name 85 is recorded as a communication specification. For example, except for the analog phone mode of a mobile phone, the name of the HCAP method and the name of the SIP method are registered as usable protocols (communication specifications). In the analog phone mode of a mobile phone, the name of the protocol of an existing analog phone is registered as a communication specification.
The protocol start control parameter 86 registers the wireless LAN specification (wireless LAN type).
For example, protocol types such as 802.11a and 802.11b, which are standard protocols, are registered as wireless LAN specifications. Other wireless LAN protocols may be registered.
Here, 802.11 is a specification of a standard group of wireless LANs, and 802.11a is a specification of performing communication of about 54 Mbps with 5.2 GHz band wireless, and 802.11b Is a specification for performing communication of about 11 Mbps by 2.4 GHz band wireless, and 802.11g is a specification for performing communication of about 54 Mbps in the 2.4 GHz band.
In the protocol start control parameter 86, ESS-ID and WEPKey are registered as authentication information for the base station. This indicates that communication with the base station is not possible unless the ESS-ID and the WEPKey are authenticated.
The ESS-ID (Extended Service Set Identifier) is one of network identifiers in the wireless LAN of the IEEE802.11 series. The wireless LAN access point (base station) and each terminal can set an ESS-ID, and the wireless LAN access point can communicate only with a terminal having the same ESS-ID. There is also a special ESS-ID called “ANY” that can be connected to any access point.
WEPKey (Wired Equivalent Privacy Key) is an encryption key in wireless communication.
When the wireless communication terminal 10 operates as a mobile phone, authentication information of the existing mobile phone is registered.
Further, in the protocol start control parameter 86, authentication information such as a local authentication user ID and a password is registered corresponding to each specification of each setting mode.
These ESS-ID, WEPKey, local authentication user ID, and password are parameters necessary for starting the protocol.
However, if authentication is not required, “no authentication” is registered in the protocol start control parameter 86.
For example, the ESS-ID, WEPKey, local authentication user ID, and password are registered for 802.11a in the local A mode. This indicates that when 802.11a in the private A mode is used, communication with the base station is not possible unless the ESS-ID, WEPKey, private authentication user ID, and password are authenticated.
In addition, for example, ESS-ID, WEPKey, and “No in-house authentication” are registered for 802.11b in the in-house A mode. This indicates that when using the type of the 802.11b specification in the premises A mode, authentication of the premises authentication user ID and password is not required if the ESS-ID and WEPKey are authenticated.
Further, for example, for 802.11g in the public A mode, an ESS-ID, WEPKey, ISP authentication user ID, and password are registered. This indicates that, when using 802.11g in the public A mode, communication with the base station is not possible unless the ESS-ID, WEPKey, ISP authentication user ID, and password are authenticated.
For example, ESS-ID, WEPKey, and “no home authentication” are registered for 802.11b in the home mode. This indicates that when using 802.11b in the home mode, authentication of ESS-ID and WEPKey is shot, but authentication of the authentication user ID and password is not required.
For example, “no authentication” is registered for 802.11b in the free mode. This indicates that no authentication of ESS-ID, WEPKey, authentication user ID, and password is required when using 802.11b in the free mode.
Hereinafter, the schematic operation of the processing of the wireless communication terminal 10 will be described with reference to FIGS. 3 and 4.
The wireless communication terminal 10 is used in an Internet telephone network system. The wireless communication terminal 10 transmits and receives audio data via the Internet including a wireless network. The wireless communication terminal 10 communicates terminal authentication information between the wireless communication terminal 10 and the mobile phone base station 41, switches the communication protocol of the wireless communication terminal 10 based on the information that has received the connection permission, and efficiently according to the connected base station. Internet telephones are provided through standard communication means.
The wireless communication terminal 10 emits radio waves to nearby wireless base stations using the authentication information. If there is a base station that can authenticate the authentication information within the reach of the radio wave, the base station responds.
When there is a base station 41 that receives the radio wave and is connected to the network within the reach from the wireless communication terminal 10, the wireless communication terminal 10 and the base station 41 can communicate with each other. The wireless communication terminal 10 and the base station 41 communicate terminal authentication information between the wireless communication terminal 10 and the base station 41 in order to identify connection permission.
The wireless communication terminal 10 has a terminal authentication information storage unit 71, and stores a plurality of terminal authentication information 80 in a storage device in the wireless communication terminal 10, for example, in the form of a table as shown in FIG. Yes. The table in this example is, for example, a set of information of “identifier 81”, “identification tag 82”, “Internet communication protocol name 84”, and “protocol start control parameter 86”.
In this embodiment, the terminal authentication information includes an identification tag 82,
1. Whether it is an in-organization mode indicating that it is possible to access a wireless LAN base station 41 in an organization such as a company, a school, a public facility, a building of various organizations, a site, or the like,
2. Public mode indicating that public airports, stations, restaurants, dealers, lodging facilities, etc. can access public access points that are widely open to general users,
3. Whether the home mode indicates that the wireless LAN base station 41 can be used at home, relatives 'homes, friends' homes, etc.
4). Free mode that anyone can use
Etc., a communication protocol specification of the mode, and parameters are registered.
When the authentication information transmitted by the wireless communication terminal 10 is authenticated by the access point (cell phone base station 41) in the vicinity of the wireless communication terminal 10, the organization mode, public mode, and home mode corresponding to the identification tag are used. The wireless communication terminal shifts to various modes such as a free mode.
Particularly, in the public mode, various ISPs and base station service vendors to be connected are assumed depending on the access point (cell phone base station 41) to be connected. These ISPs (Internet Services Providers) and base station service vendors are determined according to the access points used by users accidentally. Therefore, by registering authentication information related to ISPs and base station service vendors that can be used for each access point in the wireless communication terminal 10 as corresponding to the identification tag and registering it as authentication information, each time an access point is visited, an appropriate information is obtained. Authentication information can be found and used.
The terminal authentication information transmission control unit 72 of the wireless communication terminal 10 selects the identification tag 82 indicated by the identifier 81 in the order of priority defined by the terminal authentication information priority specifying unit 74, and transmits the terminal authentication information to the mobile phone. Send to base station 41. The terminal authentication information transmission control unit 72 attempts communication according to the corresponding protocol start control parameter 86. A response such as OK or NO, no response is returned from the mobile phone base station 41. When the terminal authentication information validity confirmation unit 73 confirms NO or a no-response response, it sends another defined terminal authentication information in order of priority.
When the terminal authentication information validity confirmation unit 73 confirms OK, the protocol start control unit 77 starts communication using the communication protocol stored in the protocol storage unit 76.
As a result, the terminal authentication information is communicated between the wireless communication terminal 10 and the mobile phone base station 41, and the communication means (communication mode and communication protocol) of the wireless communication terminal 10 is switched based on the information that has received the connection permission. According to the station 41, an Internet telephone can be provided by an efficient communication means.
5 and 6 are flowcharts showing specific operations of the wireless communication terminal 10.
Here, it is assumed that the terminal authentication information 80 illustrated in FIG. 4 is registered in the terminal authentication information storage unit 71. Further, a case will be described as an example where the terminal authentication information priority designation unit 74 assigns priorities in order of reducing communication costs among a plurality of types of setting modes.
That is, the terminal authentication information priority designation unit 74
1 Intra-organization mode,
2 Home mode
3 Free mode,
4 Public mode
5 Mobile phone IP phone mode
6 Analog phone mode of mobile phone
Priority order is given.
In the intra-organization mode 1, the connection fee is owned by the company. If it is an IP phone, the call fee is free by the HCAP method, and if it is a public phone, the call fee is cheap by the SIP method.
In the above-mentioned 2 home mode, the connection fee is a fixed monthly connection fee. For an IP phone, the call fee is free by the HCAP method, and for a public phone, the call fee is cheap by the SIP method.
In the free mode (3), the connection charge is owned by another person. If it is an IP phone, the call charge is free by the HCAP method, and if it is a public phone, the call charge is cheap by the SIP method. ,
In the public mode (4), the connection fee is a fixed monthly connection fee. For an IP phone, the call fee is free by the HCAP method, and for a public phone, the call fee is cheap by the SIP method.
The IP phone mode of the mobile phone of 5 is a fixed monthly connection fee. If it is an IP phone, the call fee is free by the HCAP method, and if it is a public phone, the call fee is cheap by the SIP method.
In the analog telephone mode of the mobile phone described in 6 above, the connection fee is metered and the call fee is the most expensive.
5 and 6, the terminal authentication information transmission control unit 72 transmits the terminal authentication information 80 to the base station in the order of 1 to 6, and the base station responds in any mode, and the terminal authentication information 80 This is an operation flow for starting communication with the base station after being authenticated by.
First, the user inputs a telephone number to the wireless communication terminal 10 through the input unit 78. Here, it is assumed that an IP telephone number or a public telephone number is input.
The wireless communication terminal 10 starts the operation shown in the flowchart of FIG. 5 with the input of the telephone number as a trigger.
In S11, the terminal authentication information transmission control unit 72 first selects the premises A mode. In the private A mode, as the first terminal authentication information 80, 802.11a specifications, ESS-ID, WEPKey, private authentication user ID, and password are registered. The terminal authentication information transmission control unit 72 transmits the ESS-ID, the WEPKey, the local authentication user ID, and the password based on the 802.11a specification. As a result, if authentication is obtained from the base station, communication in the private A mode according to the 802.11a specification is determined in S12. In S13, the protocol start control unit 77 operates. If the input telephone number is an IP telephone number, the protocol start control unit 77 selects an HCAP protocol execution routine from the protocol storage unit 76 and operates the protocol execution routine. If the input telephone number is a public telephone number, the protocol start control unit 77 selects a SIP protocol execution routine from the protocol storage unit 76 and operates the protocol execution routine. Thereafter, communication is performed by the HCAP method or the SIP method until the line is disconnected.
In S11, in the case where the authentication is not obtained from the base station in 802.11a in the premises A mode, the process proceeds to S21.
In S21, the terminal authentication information transmission control unit 72 tries the next access. Second, in the premises A mode, 802.11b specifications, ESS-ID, WEPKey, and “no authentication” are registered as terminal authentication information 80. The terminal authentication information transmission control unit 72 transmits the ESS-ID and the WEPKey based on the 802.11b specification. As a result, if authentication is obtained from the base station, the communication in the private A mode based on 802.11b is determined in S22. In S23, the protocol start control unit 77 operates. If the input telephone number is an IP telephone number, the protocol start control unit 77 selects an HCAP protocol execution routine from the protocol storage unit 76 and operates the protocol execution routine. If the input telephone number is a public telephone number, the protocol start control unit 77 selects a SIP protocol actual routine from the protocol storage unit 76 and operates the protocol execution routine. Thereafter, communication is performed by the HCAP method or the SIP method until the line is disconnected.
In S21, when the authentication is not obtained from the base station in 802.11b in the premises A mode, the process proceeds to S31.
Hereinafter, similarly, access to the base station is tried in each mode from S31 to S91 in order. If access to the base station is not successful in any mode, the output unit 79 displays out-of-service display on the display device 141 in S99. And the terminal authentication information transmission control part 72 starts the process of S11, after fixed time progress.
FIG. 7 is a system configuration diagram when the radio communication terminal 10 and the radio communication terminal 19 make an extension-extension call.
FIG. 7 shows a case where the wireless communication terminal 10 and the wireless communication terminal 19 are on the company premises, and the wireless communication terminal 10 is authenticated from the access point 50 (base station) in the premises mode. Further, the case where the wireless communication terminal 19 is authenticated in the local mode from the access point 59 is shown. The wireless communication terminal 10 and the wireless communication terminal 19 complete the outgoing / incoming call via the session management server 35 by the HCAP call control. A case where communication is performed with the specification of 721a is shown. In the case of FIG. 7, both the wireless communication terminal 10 and the wireless communication terminal 19 communicate by UDP with the IP address fixed.
FIG. 8 is a system configuration diagram in the case where the wireless communication terminal 10 and the telephone 14 make an extension-outside call.
In FIG. 8, the wireless communication terminal 10 is on the company premises, and the telephone 14 is connected to the telephone network 49. FIG. 8 shows a case where the wireless communication terminal 10 is authenticated from the access point 50 in the private mode. The wireless communication terminal 10 and the telephone 14 complete the incoming / outgoing call via the SIP server 32 by SIP call control. A case of performing communication according to the specification of 711 is shown. In the case of FIG. 8, the wireless communication terminal 10 communicates by UDP with the IP address fixed.
FIG. 9 is a system configuration diagram when the wireless communication terminal 10 and the wireless communication terminal 19 make an extension-Internet call.
FIG. 9 shows a case where the wireless communication terminal 10 is in a company premises and the wireless communication terminal 19 is in a public spot 61 or home 62. FIG. 9 shows a case where the wireless communication terminal 10 is authenticated from the access point 50 in the private mode. A case where the wireless communication terminal 10 and the wireless communication terminal 19 complete an incoming / outgoing call via the session management server 35 by HCAP call control and communicate using the compression protocol (G.729a) via the voice relay server 36. Show.
In FIG. 9, the wireless communication terminal 19 and the voice relay server 36 perform voice data communication using SIP, HTTP, or UDP. Further, since the voice relay server 36 and the wireless communication terminal 10 have the NAPT router 52, they perform voice data communication using HTTP.
In general, as an IP telephone communication system in a wireless LAN (Local Area Network) standard such as IEEE (Institut of Electrical and Electrical Engineers) 802.11a, b, g, etc., voice data is converted into UDP (User Data) by an IP address acquisition form. Protocol) or HTTP (HyperText Transfer Protocol) is selected.
The NAPT (Network Address Port Translation) router 52 shown in FIG. 9 has an address translation function, like the NAT router. The address conversion function of the NAPT router 52 is a function of converting a plurality of local IP addresses and one global IP address.
If the address translation function of the NAPT router 52 is used, it becomes possible to connect a plurality of computers to the Internet simultaneously with only one global IP address. However, because the port number changes, it cannot be accessed from the Internet.
In general, voice data communication by UDP is difficult with a local IP address. For this reason, as shown in FIG. 9, the access point 59 isolated from the Internet 30 by a NATP (Network Address Port Translation) router 52 or a NAT (Network Address Translation) router may only be able to perform voice data communication by HTTP.
In particular, in general public access points, there are many cases where only voice data communication by HTTP is possible.
Therefore, the voice relay server 36 exchanges UDP and HTTP, or exchanges SIP and HTTP. An implementation example in which setting for performing voice data communication by HTTP is effective as the terminal authentication information in the public mode is also effective.
In addition, by collaborating with a service vendor of a general public access point, the wireless communication terminal 10 can have a UDP (Network Address Translation) router assigned to the access point side to assign a UDP port, and thus the UDP voice. Data communication can also be realized. In this case, it is possible to set the UDP selection for the access point of this partner vendor as the terminal authentication information in the public mode.
Next, the local IP address resolution unit 69 will be described.
Also in the public access point, UPnP (Universal Plug and Play) and STUN (Simple Traffic of UDP Through Translators) are considered by the IETF router in the communication negotiation process between the wireless communication terminal 10 and the NAT router. Method), MIDCOM (NAT router traversal method studied by IETF MIDCOM WG), etc., there is a case where a UDP port can be allocated statically or dynamically to a NAT router. The local IP address resolution unit 69 performs communication negotiation processing with the NAT router. The wireless communication terminal 10 can perform UDP voice data transmission / reception settings in the public mode in correspondence with this type of NAT router.
That is, the local IP address resolution unit 69 accepts the fixed or dynamic allocation of the local IP address, and sends out static IP masquerade automatic setting information (UPnP information, etc.) to the router having jurisdiction over the base station. Negotiating communication between the two. Thereafter, the communication unit 70 communicates using the UDP protocol.
The wireless communication terminal 10 accepts local IP address fixed or dynamic assignment in the intra-organization mode and communicates with the UDP protocol, and accepts the global IP address fixed or dynamic assignment in the public mode and the UDP protocol. Internet communication may be used.
That is, in the public mode, the wireless communication terminal 10 may perform Internet communication using the UDP protocol by the local IP address resolution unit 69 that executes a method over existing NAT routers such as MIDCOM, STUN, and UPnP. .
As described above, the wireless communication terminal 10 according to this embodiment includes a plurality of wireless LANs such as ESS-ID, WEPKey, and WPA as data stored in the terminal authentication information storage unit 71 that stores a plurality of terminal authentication information. Standard registration information for authentication is registered. The terminal authentication information 80 is sequentially sent according to the terminal authentication information sending control unit 72 that controls the order of sending the terminal authentication information. If the terminal authentication information mode adopted by the terminal authentication information validity checking unit 73 is the intra-organization mode, the IP address is fixed and UDP communication is performed. If the mode is the public mode, the IP address dynamic assignment is accepted and the HTTP is used. It is characterized by internet communication.
In addition, the wireless communication terminal 10 according to this embodiment includes a terminal authentication information storage unit 71 that stores a plurality of terminal authentication information, a terminal authentication information transmission control unit 72 that controls a sending order of the plurality of terminal authentication information, And a terminal authentication information validity confirmation unit 73 for confirming whether or not the terminal authentication information is valid.
In addition, the wireless communication terminal 10 according to this embodiment includes a protocol storage unit 76 that stores an execution routine of a plurality of Internet communication protocols (HCAP, SIP, TCP, UDP), and any one of the plurality of Internet communication protocols. And a protocol start control unit 77 that starts communication using the Internet communication protocol. The wireless communication terminal 10 controls the protocol start control unit 77 according to the validity confirmed by the terminal authentication information validity confirmation unit 73.
According to the wireless communication terminal 10 according to this embodiment, in the Internet telephone network system, it is possible to provide a system in which the terminal and the base station can efficiently communicate according to the base station.
Next, the output unit 79 will be described.
FIG. 10 is a diagram illustrating a display device such as a liquid crystal display panel of the wireless communication terminal 10.
When the wireless communication terminal 10 connects to a local or public access point (base station 41), the setting mode for the access point is displayed on a display device such as a liquid crystal display panel of the wireless communication terminal 10, The user can confirm what communication path is used for connection.
In addition, when a user moves between these access points (base stations 41) while performing wireless communication, the voice may be interrupted if a voice call is in progress. Therefore, the output unit 79 can notify the user of the switching of the connection form by the access point through the display unit in an audio-visual manner in order to inform the user why the sound is interrupted.
Next, the terminal authentication information search unit 75 will be described.
The terminal authentication information search unit 75 can receive the position measurement result by the position specifying unit 68 and specify the location of the wireless communication terminal 10.
Further, the terminal authentication information storage unit 71 stores terminal authentication information as a part of each terminal authentication information 80 including geographical conditions such as the premises of a specific company, organization, etc., the premises of the related place, and the public accessible place. It can be registered in the unit 71. The terminal authentication information storage unit 71 can register the terminal authentication information as a data structure of a tree structure, a directory structure, an array structure, a table structure, and a map structure in consideration of these geographical conditions. Alternatively, the terminal authentication information can be registered as a data structure composed of a combination of these structures.
The terminal authentication information search unit 75 manages the location of the wireless communication terminal 10 and the location of the access point. The terminal authentication information search unit 75 searches for terminal authentication information based on the location of the wireless communication terminal 10 or the location of the access point according to the data structure of the terminal authentication information storage unit 71. For example, the terminal authentication information search unit 75 uses a data structure such as a map structure that can be searched from the coordinates of the map information, or a directory structure that can be searched from each item of prefectures, municipalities, and addresses. Search efficiency can be improved.
Next, the operation of the terminal authentication information validity confirmation unit 73 will be described.
The terminal authentication information validity confirmation unit 73 confirms whether or not the terminal authentication information is valid. The terminal authentication information validity checking unit 73 determines whether the terminal authentication information is valid based on a response signal from the base station.
The terminal authentication information validity confirmation unit 73 may adopt the terminal authentication information whose validity is confirmed first.
Alternatively, the terminal authentication information validity checking unit 73 transmits all or a part of the terminal authentication information, identifies validity / invalidity, stores it in the storage unit, and selects one terminal authentication information from the valid terminal authentication information May be adopted.
Alternatively, the terminal authentication information validity confirmation unit 73 may adopt terminal authentication information whose validity has been confirmed last.
Alternatively, the terminal authentication information validity confirmation unit 73 may allow the user to register in advance a method for determining adoption from a plurality of valid terminal authentication information.
Next, the terminal authentication information priority designation unit 74 will be described.
As described above, there are various communication connection forms by the access point. Depending on which communication connection form is adopted, various power consumption, communication cost, communication interception safety, communication quality, and the like of the wireless communication terminal 10 are various. The conditions are different.
Therefore, on the assumption that a plurality of communication connection modes can be selected, which communication connection mode is preferentially adopted depends on the condition.
FIG. 11 is a diagram illustrating a state in which one wireless communication terminal 10 changes the priority of terminal authentication information depending on a location. The wireless communication terminal 10 has a connection form such as an in-organization mode and a public mode. Further, the wireless communication terminal 10 uses a plurality of types of wireless communication methods (802.11a, 802.11b, 802.11g, Bluetooth, and IP communication with a mobile phone) in each connection form. Can do. That is, it is possible to select and use an appropriate one of the plurality of types of wireless communication methods within one mode.
The terminal authentication information priority specifying unit 74 selects an appropriate one from a plurality of types of modes and wireless communication methods, and operates the terminal authentication information transmission control unit 72.
For example, the terminal authentication information priority specifying unit 74
1 Intra-organization mode,
2 Free mode,
3 Public mode
Specify the priority order.
In this case, communication costs can be reduced and power consumption can be reduced.
Alternatively, the terminal authentication information priority designation unit 74
1 Intra-organization mode,
2 Public mode
3 Free mode
Specify the priority order.
In this case, there is an effect that it is easy to ensure communication interception safety and improve communication quality.
When controlling the order of sending a plurality of terminal authentication information, the terminal authentication information priority specifying unit 74
1 Intra-organization mode,
2 Public mode
3 Free mode,
Specify the order. In this case, the probability of connection permission can be increased.
Alternatively, the terminal authentication information priority designation unit 74
1 Intra-organization mode,
2 Free mode,
3 Public mode
Specify the order. In this case, the cost of the user related to the connection can be reduced. This is because in the case of a public connection, there are many cases where the connection is made to an internet provider that charges.
Alternatively, the terminal authentication information priority designation unit 74
1 Intra-organization mode,
2 Free mode,
3 Public mode
Specify the order. In this case, the power consumption is minimized in the continuous connection state of the wireless communication terminal 10. In other words, the continuous use time for connection can be made as long as possible by sending out connection requests in the above order.
As described above, the terminal authentication information priority specifying unit 74 specifies the priority for sending a connection request. The terminal authentication information priority designation unit 74 is implemented in the wireless communication terminal 10 and realizes a mechanism for automatically controlling connection request transmission.
However, the terminal authentication information priority designation unit 74 can also improve the usability by changing the priority content by the user's operation. For example, it is not necessary to start the internal mode authentication process when the internal mode is obviously not used for a long period of time, such as on a business trip from a company, etc., so temporarily remove it from the authentication information search process. It is efficient. Further, when the company does not allow the user to use the public mode in order to reduce the communication cost, the public mode can be disabled. The terminal authentication information priority designation unit 74 stores these settings from the user in the reception storage unit via the input unit.
As described above, the terminal authentication information priority specifying unit 74 can specify a priority in advance by the user as a terminal authentication information transmission control method for controlling the order of sending a plurality of terminal authentication information.
Further, the terminal authentication information priority designation unit 74 stores the usage frequency of the user in the storage unit as a terminal authentication information transmission control method, shows the frequency to the user, and assists the user in specifying the priority. You may make it do.
In this way, the terminal authentication information priority specifying unit 74 can display the usage frequency of the authentication information, and can be used as an aid when the user specifies the priority of the order of sending the terminal authentication information.
Moreover, the terminal authentication information priority designation | designated part 74 may memorize | store the usage frequency of a user's authentication information as a transmission control method of terminal authentication information, and you may make it send from the thing with frequent frequency.
The terminal authentication information priority designation unit 74 can perform optimal priority control by learning the use frequency of authentication information. Also. Efficiency can be improved by sending from the one with the highest frequency.
Moreover, the terminal authentication information priority designation | designated part 74 may memorize | store a user's use track record as a transmission control method of terminal authentication information, and you may make it send from the last used.
In order to increase the temporary use efficiency, it is predicted that the algorithm that the terminal authentication information priority designation unit 74 sends out from the most recently used one is also effective.
Further, the terminal authentication information priority specifying unit 74 is based on the position of the wireless communication terminal 10 found from the position specifying unit 68 such as GPS (Global Positioning System) of the wireless communication terminal 10 as a transmission control method of terminal authentication information. Alternatively, the terminal authentication information may be transmitted to a base station that is spatially or geographically nearby.
As described above, since the wireless communication terminal 10 incorporates the position specifying unit in the wireless communication terminal, the terminal authentication information priority specifying unit 74 transmits the authentication information from the nearby access point (base station 41). , Efficient authentication processing can be performed.
The terminal authentication information priority specifying unit 74 registers the above-described transmission control method and other transmission control orders individually or in combination as a terminal authentication information transmission control method in the storage unit. That is, the terminal authentication information priority designation unit 74 processes and changes the terminal authentication information transmission control method, registers it in the storage unit, selects it, extracts it, and uses it.
As described above, it is possible to realize an efficient authentication process in accordance with the actual life of the user by registering the priority by performing processing or changing, and selecting and reusing the priority as appropriate.
As a communication mode in the public mode, the wireless communication terminal 10 has a built-in communication function of an existing mobile phone or mobile phone so that the wireless communication terminal 10 can be used as a normal communication instead of an IP phone. It is also possible to implement modes.
That is, the wireless communication terminal 10 holds the IP address in the organization mode and performs Internet telephone communication, and in the public mode, the wireless communication terminal 10 performs voice communication by wireless communication using an existing mobile phone other than the Internet. Good.
Also, as a public communication mode, it is possible to implement a public mode in which an IP phone can be placed using an IP packet communication path at the time of communication in a wireless communication terminal incorporating a communication function of an existing mobile phone. .
That is, if the wireless communication terminal 10 is in the organization mode, the packet communication line can hold the IP address and perform the Internet telephone communication, and if the wireless communication terminal 10 is in the public mode, the Internet access can be established by the VoIP method by the wireless communication of the existing mobile phone Voice communication may be used.
Further, when the wireless communication terminal 10 is used by a base station in an organization such as a general company, only the wireless communication terminal 10 in the organization is closed. Therefore, as a specific membership price service form, users outside the organization may be able to use access to the base station of the organization. That is, the authentication information is shared among members, and the registration information of the members is managed by a server on the Internet. The member's wireless communication terminal 10 can access the registration information and use a base station of an organization to which a large number of members belong.
Also, when the wireless communication terminal 10 is already connected to the Internet for communication and there is another mode in which communication is possible at the same place at the same time, a mode with better communication quality or a lower communication price is available. The mode may be changed by allowing the user to operate the wireless communication terminal 10 to the correct mode. Alternatively, the mode may be changed automatically.
For example, even when actually making a call, the user may want to improve the communication quality, and the communication mode may be changed to, for example, a pay access point connection in the public mode. You may call by changing the access to the mobile phone base station 41 by measuring the radio wave intensity or the packet loss rate of the transfer data. Also, a free access point without authentication information may be used to make the communication cost lower. That is, when a plurality of communication connection modes can be used at the same time, the user may intentionally change the communication mode.
In the past, it was assumed that the private mode would be used only within an organization such as a specific company. However, when a plurality of companies such as office districts are close and dense, it is possible to obtain a wide and stable communication connection environment by mutually using the cellular phone base stations 41 of each organization. . Therefore, by operating a society for mutual use of the mobile phone base station 41 between organizations such as companies that are customers, and collecting appropriate usage charges, there is a mechanism for widening the places where wireless communication terminals can be used. You can think about the business model to offer. At this time, authentication information that can be used only by users of this association is set.

  As described above, according to the embodiment of the present invention, in an Internet telephone system, a wireless mobile phone can be connected to a base station in a user's preferable state.

Claims (11)

In a wireless communication terminal connected to the Internet via any of a plurality of local area networks,
For each of the plurality of local area networks, and the terminal authentication information storage unit for storing the terminal authentication information for obtaining the authentication permission communication from the base station connected to said local area network,
A position specifying unit for measuring the position of the wireless communication terminal;
Based on the result of positioning by the position specifying unit, the location of the wireless communication terminal is specified, and terminal authentication is performed based on the specified location of the wireless communication terminal from the plurality of terminal authentication information stored in the terminal authentication information storage unit. A terminal authentication information search unit for searching for information;
A plurality of terminal authentication information stored in the terminal authentication information storage unit, giving priority to the terminal authentication information searched by the terminal authentication information search unit, and specifying a priority, a terminal authentication information priority specifying unit;
According to the order of the terminal authentication information priority designation unit has designated priority, select one by one the terminal authentication information from among the plurality of terminal authentication information which the terminal authentication information storage unit and stored by sequentially selected terminal authentication information And a terminal authentication information transmission control unit that attempts to access the base station,
By the terminal authentication information transmission control unit to determine whether the successful access to the base station, the terminal authentication information validity to confirm the validity of the terminal authentication information the terminal authentication information transmission control unit is used A confirmation section;
And characterized in that a said terminal authentication information using the terminal authentication information to confirm the validity confirmation portion efficacy, the communication unit the terminal authentication information transmission control unit that communicates with a base station which has successfully accessed Wireless communication terminal. The terminal authentication information priority specifying unit, when there are a plurality of terminal authentication information searched by the terminal authentication information searching unit, prioritizes terminal authentication information satisfying a predetermined condition and specifies a priority. The wireless communication terminal according to claim 1. The terminal authentication information priority designation unit stores conditions input by the user, and when there are a plurality of terminal authentication information searched by the terminal authentication information search unit, the terminal authentication information satisfying the stored conditions is prioritized. The wireless communication terminal according to claim 1 or 2, wherein priority is designated. The terminal authentication information storage unit as terminal authentication information,
In-organization mode terminal authentication information for receiving authentication from a base station connected to the in-organization local area network installed in the organization,
Public mode terminal authentication information for receiving authentication from a base station connected to a public local area network accessible to the public ;
Terminal authentication information in home mode for receiving authentication from a base station connected to a private local area network installed by the individual,
Among the free accessible free local area network to the connected base stations with free mode of the terminal authentication information to authenticate without authentication, and characterized by storing at least one or two or more terminal authentication information The wireless communication terminal according to any one of claims 1 to 3 . The terminal authentication information priority designating unit stores a priority order among at least two of the intra-organization mode, the public mode, the home mode, and the free mode, and the terminal authentication information search unit 5. The wireless communication terminal according to claim 4, wherein, when there are a plurality of terminal authentication information searched for, the priority is specified by prioritizing the stored terminal authentication information in a mode having a higher priority. The terminal authentication information priority designating unit stores the priority order between modes input by the user, and when there are a plurality of terminal authentication information searched by the terminal authentication information search unit, the stored priority order of the mode is high. 6. The wireless communication terminal according to claim 5, wherein priority is specified by prioritizing terminal authentication information. When there are a plurality of terminal authentication information searched by the terminal authentication information search unit, the terminal authentication information priority specifying unit gives priority to at least one of the terminal authentication information used frequently and the terminal authentication information used most recently. The wireless communication terminal according to any one of claims 1 to 6, wherein priority is designated. The terminal authentication information storage unit, a communication specification stores including terminal authentication information,
The wireless communication terminal further includes:
A protocol storage unit for storing a plurality of types of protocol execution routines;
The protocol corresponding to the communication specification that is part of to the terminal authentication information validation unit terminal authentication information to confirm the validity, select from among the multiple types of the protocol storage unit stores protocol selection wireless communication terminal according to any one of claims 1 to 7, characterized in that a protocol start controller to initiate communication with the base station in the protocol. The terminal authentication information storage unit stores, as terminal authentication information, a plurality of types of protocol types for a wireless local area network,
The terminal authentication information transmission control unit to the radio local area network, using a plurality of types of protocol types, radio according to any one of claims 1 to 8, characterized in that access to the base station Communication terminal. In a wireless communication method in which a wireless communication terminal connects to the Internet via any of a plurality of local area networks,
Terminal authentication information storage unit, for each of the plurality of local area networks, stores terminal authentication information for obtaining the authentication permission communication from the base station connected to said local area network,
The position specifying unit measures the position of the wireless communication terminal,
The terminal authentication information search unit specifies the location of the wireless communication terminal based on the result of positioning by the position specifying unit,
The terminal authentication information search unit searches the terminal authentication information from the plurality of terminal authentication information stored by the terminal authentication information storage unit according to the location of the specified wireless communication terminal,
The terminal authentication information priority specifying unit gives priority to the terminal authentication information searched by the terminal authentication information search unit with respect to the plurality of terminal authentication information stored by the terminal authentication information storage unit, and specifies the priority.
Terminal authentication information transmission control unit, according to the order of the terminal authentication information priority designation unit has designated priority, select one by one the terminal authentication information from among the plurality of terminal authentication information which the terminal authentication information storage unit and stored by , Try to access the base station using the selected terminal authentication information in order ,
Terminal authentication information validation unit, by the terminal authentication information transmission control unit to determine whether or not succeeded in accessing the base station, the effective terminal authentication information the terminal authentication information transmission control unit is used Check the sex
Communication unit, the terminal authentication information validation unit using the terminal authentication information to confirm the validity of the wireless communication method you characterized that you communicate with the base station. In a wireless communication program executed by a central processing unit of a wireless communication terminal connected to the Internet via any of a plurality of local area networks,
A process of storing the authentication storage section, for each of the plurality of local area networks, stores terminal authentication information for obtaining the authentication permission communication from the base station connected to said local area network,
A process in which the position specifying unit measures the position of the wireless communication terminal;
A process in which the terminal authentication information search unit specifies the location of the wireless communication terminal based on the result of positioning by the position specifying unit;
The terminal authentication information search unit searches the terminal authentication information from the plurality of terminal authentication information stored in the terminal authentication information storage unit according to the specified location of the wireless communication terminal,
A process in which the terminal authentication information priority specifying unit prioritizes the terminal authentication information searched by the terminal authentication information search unit and specifies the priority over the plurality of terminal authentication information stored in the terminal authentication information storage unit When,
Terminal authentication information transmission control unit, according to the order of the terminal authentication information priority designation unit has designated priority, select one by one the terminal authentication information from among the plurality of terminal authentication information which the terminal authentication information storage unit and stored by , Using the selected terminal authentication information in order, trying to access the base station,
Terminal authentication information validation unit, by the terminal authentication information transmission control unit to determine whether or not succeeded in accessing the base station, the effective terminal authentication information the terminal authentication information transmission control unit is used Processing to check the sex,
Communication unit, characterized in that using a terminal authentication information that the terminal authentication information validation unit confirms the validity, the process and that communicates with the base station, to be executed by the central processing unit of the wireless communication terminal A wireless communication program.

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