JP2009005011A - Wireless communication terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio communication terminal capable of easily setting the connection information of an access point for receiving the provision of roaming services and a Web certification information by a public radio LAN. <P>SOLUTION: The radio communication terminal has a connection-information conserving section conserving the connection information for a connection at the access point of the public radio LAN and the Web certification information and a mapping-table storage section storing a mapping table used for generating the connection information for the connection at the access point of the public radio LAN at a roaming place and the Web certification information on the basis of the connection information at the access point of the public radio LAN conserved in the connection-information conserving section and the Web certification information. The radio communication terminal further has a roaming connection-information generating section generating the connection information at the access point of the public radio LAN at the roaming place and the Web certification information from the connection information at the access point of the public radio LAN specified by a user and the Web certification information while referring to the mapping table. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wireless communication terminal that automatically generates connection information necessary for connecting to an access point of a public wireless LAN.

  In order to connect to a wireless LAN access point, a wireless communication terminal uses an access point identifier (SSID: Service Set IDentifier), information on an authentication method used at the time of connection, an authentication password and a certificate, and an encryption method used after connection And information on the decoding method are held as connection information. The wireless communication terminal performs a connection process with the access point based on the connection information, and can communicate after the connection process is completed.

  The wireless communication terminal holds connection information of each access point in order to realize connection with a plurality of access points, and automatically searches for connectable access points using the connection information. Has the ability to connect.

  On the other hand, in a public wireless LAN, after a wireless communication terminal connects to an access point based on connection information, user authentication is performed using a Web browser. This method is generally called Web authentication. In Web authentication, authentication is performed using a user ID and a user password assigned by a public wireless LAN service provider. In order to connect to the public wireless LAN, the wireless communication terminal holds a user ID and a user password as access point connection information and Web authentication information for performing Web authentication.

  Further, in the public wireless LAN, a mutual roaming service is performed between providers of the public wireless LAN service, and connection to a public wireless LAN access point provided by a provider other than the contracted provider is possible. In order to connect to a roaming destination public wireless LAN access point and receive a mutual roaming service, connection information of the roaming destination public wireless LAN access point and Web authentication information for the roaming destination provider are required. The connection information and the web authentication information are different for each roaming destination provider, and the user of the wireless communication terminal needs to manually create the connection information and the web authentication information. Such manual work is cumbersome and difficult to understand for the user. In addition, providers that have a mutual roaming contract differ depending on the provider with whom they have contracted. This is also one of the causes of confusion for users.

  Patent Document 1 discloses a method for automatically acquiring connection information in automatic connection using connection information of a wireless LAN access point. However, the specific automatic acquisition method is not disclosed.

  Patent Document 2 discloses a method in which a server that distributes connection information of wireless LAN access points is provided, and this server automatically distributes connection information to wireless communication terminals. However, since it is necessary to distribute Web authentication information for each user in a public wireless LAN, this method cannot be applied in a public wireless LAN. Moreover, since it is necessary to add the said server to the existing equipment, the expandability of a service is scarce.

JP 2004-094736 A JP 2004-326416 A

  An object of the present invention is to provide a wireless communication terminal capable of easily setting access point connection information and Web authentication information for receiving provision of a roaming service in a public wireless LAN.

  The present invention is a wireless communication terminal connected to a public wireless LAN access point, a connection information storage unit for storing connection information and Web authentication information for connecting to a public wireless LAN access point, and the connection information storage Used to generate connection information and Web authentication information for connecting to a roaming destination public wireless LAN access point based on connection information and Web authentication information of a public wireless LAN access point stored in the unit From the mapping table storage unit that stores the table and the mapping table stored in the mapping table storage unit, from the connection information and Web authentication information of the access point of the public wireless LAN specified by the user of the wireless communication terminal Access to the roaming public wireless LAN A roaming connection information generating unit that generates connection information and Web authentication information point, which provides a wireless communication terminal having a.

  The wireless communication terminal refers to connection information stored in the connection information storage unit, and automatically searches for an access point of a public wireless LAN by an access point automatic search unit and search by the access point automatic search unit A connection processing unit that performs a connection process to the access point of the public wireless LAN that has been performed, and a Web necessary for connection to the searched public wireless LAN using the Web authentication information stored in the connection information storage unit A Web authentication processing unit that performs authentication.

  The wireless communication terminal includes an access point manual search unit that searches for an access point of a public wireless LAN in response to a request from the user.

  The wireless communication terminal notifies or displays the search result by the access point manual search unit including that it is a public wireless LAN.

  The wireless communication terminal includes a mapping table update unit that acquires the latest mapping table via a network connected to the wireless communication terminal and updates the mapping table stored in the mapping table storage unit.

  The wireless communication terminal includes a wireless LAN communication unit that communicates with a server on the network via a wireless LAN and receives data of the latest mapping table.

  The wireless communication terminal includes a cellular network communication unit that communicates with a server on the network via a cellular network and receives data of the latest mapping table.

  In the wireless communication terminal, the mapping table includes an SSID entry in which an SSID of a public wireless LAN access point for each provider of the public wireless LAN service is registered, and a domain name of a provider that provides the SSID registered in the SSID entry And the roaming destination SSID entry in which the SSID of the access point of the roaming public wireless LAN provided by the public provider that provides the SSID registered in the SSID entry is registered.

  The present invention relates to a connection information storage unit that stores connection information and Web authentication information for connecting to a public wireless LAN access point, and connection information and Web information of a public wireless LAN access point stored in the connection information storage unit. A mapping table storage unit for storing a mapping table used for generating connection information and Web authentication information for connecting to a roaming destination public wireless LAN access point based on the authentication information, and the mapping table storage unit Referring to the mapping table stored therein, the connection information and Web authentication of the roaming destination public wireless LAN from the connection information and Web authentication information of the public wireless LAN specified by the user of the wireless communication terminal Roaming connection information that generates information A wireless communication terminal including a generation unit, and a server that communicates via a wireless LAN or a cellular network, the communication unit connectable to the wireless communication terminal, and the latest mapping table data, In accordance with a request from a wireless communication terminal, a server is provided that includes a mapping table update processing unit that processes the latest mapping table data to be transmitted to the wireless communication terminal using the communication unit.

  According to the wireless communication terminal of the present invention, when the connection information and Web authentication information of the public wireless LAN to which the user contracts are specified, the connection information and Web authentication of the roaming public wireless LAN access point are specified. Since the information is generated using the mapping table, the user does not need to manually set connection information and Web authentication information of the access point of the public wireless LAN when receiving a roaming service in the public wireless LAN. . For this reason, the setting is easily performed. Further, it is possible to follow the information update of the public wireless LAN. Furthermore, an existing system such as an access point can be used as it is.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram illustrating a wireless LAN connection information automatic generation system according to an embodiment. The wireless LAN connection information automatic generation system shown in FIG. 1 includes a wireless communication terminal 100, public wireless LANs 101A and 101B, a cellular network 103, and a mapping table update server 105. Each public wireless LAN includes an access point 111 and a web authentication server 113.

  FIG. 2 is a diagram showing a connection sequence with the public wireless LAN by the wireless communication terminal 100. As shown in FIG. 2, the wireless communication terminal 100 automatically searches for and connects to a wireless LAN access point. A public wireless LAN access point permits connection in response to a request from the wireless communication terminal 100. For example, when the wireless communication terminal 100 connects to the public wireless LAN 101A, when the web authentication information is exchanged between the wireless communication terminal 100 and the web authentication server 113A and is authenticated by the access point 111A, the wireless communication terminal 100 becomes public. It can be connected to the Internet via the wireless LAN 101A. The cellular network 103 is a 2G network of GSM or PDC, or a 3G network of 3GPP or 3GPP2. The mapping table update server 105 distributes the latest mapping table to the wireless communication terminal 100 via the public wireless LAN 101 in response to a request from the wireless communication terminal 100.

  FIG. 3 is a block diagram showing the wireless communication terminal 100. As illustrated in FIG. 3, the wireless communication terminal 100 includes a connection information setting unit 201, a connection setting detection unit 203, a mapping table storage unit 205, a roaming connection information generation unit 207, a connection information storage unit 209, an access An automatic point search unit 211, a connection processing unit 213, a Web authentication processing unit 215, an access point manual search unit 217, a mapping table update unit 219, a wireless LAN communication unit 221, and a cellular network communication unit 223 are provided. .

  The connection information setting unit 201 is an interface through which the user of the wireless communication terminal 100 inputs or selects connection information and Web authentication information of a public wireless LAN access point. When connection information of a specific public wireless LAN access point is input or selected from the connection information setting unit 201, the connection setting detection unit 203 detects that a connection to the access point has been set.

  The mapping table storage unit 205 is used to connect to the roaming destination public wireless LAN access point based on the connection information and Web authentication information for connecting to the public wireless LAN access point stored in the connection information storage unit 209. The conversion rule (mapping table) for generating the connection information and Web authentication information is stored. The roaming connection information generation unit 207 refers to the mapping table stored in the mapping table storage unit 205, and connects to the roaming destination public wireless LAN access point from the connection information and Web authentication information input to the connection information setting unit 201. Information and web authentication information are generated.

  The connection information storage unit 209 stores connection information and Web authentication information of public wireless LAN access points. The access point automatic search unit 211 refers to the connection information stored in the connection information storage unit 209 and periodically searches for access points in the public wireless LAN. The connection processing unit 213 performs connection processing to the public wireless LAN access point searched by the access point automatic search unit 211. The web authentication processing unit 215 uses the web authentication information stored in the connection information storage unit 209 to perform web authentication necessary for connection to the searched public wireless LAN.

  The access point manual search unit 217 searches for an access point of the public wireless LAN in response to a request from the user. The mapping table update unit 219 acquires the latest mapping table from the mapping table update server 105 shown in FIG. 1 using the wireless LAN communication unit 221 or the cellular network communication unit 223, and the mapping table storage unit 205 stores the mapping table. Update the table. The wireless LAN communication unit 221 communicates with a server on the Internet via a wireless LAN access point. The cellular network communication unit 223 communicates with a server on the Internet via the cellular network.

  Next, the mapping table update server 105 shown in FIG. 1 will be described with reference to FIG. FIG. 4 is a block diagram showing the mapping table update server 105. As illustrated in FIG. 4, the mapping table update server 105 includes a mapping table update processing unit 301 and a wired LAN communication unit 303.

  The mapping table update processing unit 301 has the latest version of the mapping table related to the access point of the public wireless LAN held by the wireless communication terminal 100, and in response to a request from the wireless communication terminal 100, the latest mapping table data is wired. Processing is performed to transmit to the wireless communication terminal 100 using the LAN communication unit. The wired LAN communication unit 303 performs communication using a wired LAN.

  Next, the mapping table used in this embodiment will be described with reference to the drawings. The mapping table includes a roaming destination table and a connection information conversion rule table.

  FIG. 5 shows a roaming destination table. As illustrated in FIG. 5, the roaming destination table includes entries of “SSID”, “domain”, and “roaming destination SSID”. In the “SSID” entry, the SSID of the access point of the public wireless LAN is registered for each provider of the public wireless LAN service. In the “domain” entry, the domain name of the provider that provides the SSID registered in the “SSID” entry is registered. In the “roaming destination SSID” entry, the SSID of the access point of the roaming destination public wireless LAN provided by the provider that provides the SSID registered in the “SSID” entry is registered.

  FIG. 6 is a diagram illustrating a connection information conversion rule table. As illustrated in FIG. 6, the connection information conversion rule table includes entries of “roaming destination SSID”, “connection information”, “Web authentication user ID”, and “Web authentication password”. In the “roaming destination SSID” entry, the SSID of the access point of the roaming destination public wireless LAN is registered. In the “connection information” entry, connection information for connecting to an access point to which the SSID registered in the “roaming destination SSID” entry is assigned is registered.

  The “connection information” entry includes an “encryption” entry and an “encryption key” entry. In the “encryption” entry, an encryption method for connecting to the access point is registered. “WEP” shown in FIG. 6 indicates a WEP (Wired Equivalent Privacy) encryption method, and “−” indicates no encryption. In the example illustrated in FIG. 6, it is necessary to use the WEP encryption method for connection to the access point “RM_SSID1”, and it is not necessary to perform encryption for connection to the access point “RM_SSID2” or “RM_SSID3”. . In the “encryption key” entry, encryption and decryption keys used when connecting to the access point are registered.

  In the “Web authentication user ID” entry, there is registered a rule for converting a user ID given by a provider with whom the user has a contract into a user ID that can be used when connecting to a public wireless LAN as a roaming destination. Yes. The “Web authentication user ID” entry includes a “grant” entry, a “content” entry, and a “position” entry.

  In the “grant” entry in the “web authentication user ID” entry, a specific character string to be given to the user ID given from the provider with which the user has a contract is registered. “=” Shown in FIG. 6 indicates that the user ID given by the provider with whom the user has a contract can be used as it is when connected to the roaming public wireless LAN.

  In the “content” entry in the “Web authentication user ID” entry, a dynamic character string to be added to a specific character string registered in the “grant” entry is registered. “Domain” shown in FIG. 6 indicates the domain name of the provider with which the user has a contract, and indicates the same character string as the “domain” entry in the roaming destination table included in the mapping table.

  In the “position” entry in the “user ID for Web authentication” entry, when a character string is assigned to the user ID given by the provider with which the user has a contract, the character string is placed at which position of the user ID. It is registered whether to grant. “Before” shown in FIG. 6 indicates that a character string is added before the user ID, and “after” indicates that a character string is added after the user ID.

  In the “Web authentication password” entry, a rule for converting a password assigned from a provider with which the user has a contract into a password that can be used when connecting to a roaming public wireless LAN is registered. The “Web authentication password” entry includes a “grant” entry, a “content” entry, and a “position” entry.

  In the “grant” entry in the “web authentication password” entry, a specific character string to be given to the password given from the provider with which the user has a contract is registered. “=” Shown in FIG. 6 indicates that the password given by the provider with which the user has a contract can be used as it is when connected to the public wireless LAN of the roaming destination.

  In the “content” entry in the “Web authentication password” entry, a dynamic character string to be added to a specific character string registered in the “grant” entry is registered. “Domain” shown in FIG. 6 indicates the domain name of the provider with which the user has a contract, and indicates the same character string as the “domain” entry in the roaming destination table included in the mapping table.

  In the “location” entry in the “Web authentication password” entry, when a character string is assigned to the password assigned by the provider with which the user has a contract, the character string is assigned to which position of the password. Is registered about. “Front” shown in FIG. 6 indicates that a character string is added before the password, and “after” indicates that a character string is added after the password.

  Next, the connection information automatic generation processing of this embodiment will be described with reference to FIG. FIG. 7 shows a flowchart of the connection information automatic generation process. In the following description, it is assumed that connection information and Web authentication information of a public wireless LAN access point illustrated in FIG. 8 are input from the connection information setting unit 201 of the wireless communication terminal 100.

  When access point connection information and Web authentication information are input from the connection information setting unit 201, these pieces of information are stored in the connection information storage unit 209. After the storage, the connection information setting unit 201 notifies the connection setting detection unit 203 that these pieces of information have been stored in the connection information storage unit 209. (Step 100)

  Upon receiving the notification, the connection setting detection unit 205 acquires the SSID (SSID 1) of the newly stored connection information, searches the “SSID” entry in the roaming destination table of the mapping table, and determines whether there is a matching SSID. Determine (step 101). When the roaming destination table shown in FIG. 5 is stored, since “SSID 1” matches, the connection setting detection unit 205 determines that the connection information of the public wireless LAN is newly set, and the roaming connection information generation unit 207. To notify. On the other hand, if there is no matching SSID, the process is stopped.

  The roaming connection information generation unit 207 acquires the SSID (SSID1) from the newly stored connection information, and acquires the “roaming destination SSID” entry corresponding to SSID1 in the roaming destination table of the mapping table. That is, in the example illustrated in FIG. 5, the roaming connection information generation unit 207 acquires “RM_SSID1”, “RM_SSID2”, and “RM_SSID3”. Next, the roaming connection information generation unit 207 acquires a “connection information” entry (“WEP” and “WEP_KEY” in the example illustrated in FIG. 6) corresponding to “RM_SSID1” from the connection information conversion rule table of the mapping table. To do. The same processing is performed for “RM_SSID2” and “RM_SSID3”.

  Thereafter, the roaming connection information generation unit 207 refers to the “Web authentication user ID” entry corresponding to “RM_SSID1” in the connection information conversion rule table of the mapping table, and generates a Web authentication user ID. In the example shown in FIG. 6, the “sign” entry in the “Web authentication user ID” entry is “@”, the “content” entry is “domain”, and the “position” entry is “rear”. The web authentication user ID “RM_SSID1” is generated with “WEB_ID1” which is the web authentication user ID as “WEB_ID1 @ domain1”. The same processing is performed for “RM_SSID2” and “RM_SSID3”.

  Finally, the roaming connection information generation unit 207 refers to the “Web authentication password” entry corresponding to “RM_SSID1” in the connection information conversion rule table of the mapping table, and generates a Web authentication password. In the example shown in FIG. 6, the “sign” entry in the “Web authentication password” entry is “@”, the “content” entry is “domain”, and the “position” entry is “rear”. A web authentication password of “RM_SSID1” is generated with “WEB_PASS1” as the authentication password as “WEB_PASS1 @ domain1”. The same processing is performed for “RM_SSID2” and “RM_SSID3”. FIG. 9 shows connection information generated by the connection information automatic generation process (step 102) performed by the roaming connection information generation unit 207 described above.

  The roaming connection information generation unit 207 stores the generated connection information in the connection information storage unit 209 (step 103). As another example, FIG. 11 shows connection information generated according to the flowchart shown in FIG. 7 when the connection information and Web authentication information of the public wireless LAN access point set by the user are the information shown in FIG.

  Next, automatic connection processing to the access point of the public wireless LAN according to the present embodiment will be described with reference to FIG. FIG. 12 shows a flowchart of automatic connection processing to an access point of a public wireless LAN. In the following description, it is assumed that the connection information illustrated in FIG. 9 is stored in the connection information storage unit 209 of the wireless communication terminal 100.

  The access point automatic search unit 211 refers to the connection information stored in the connection information storage unit 209 and periodically searches for the corresponding access point (step 200). In the example illustrated in FIG. 9, the access point automatic search unit 211 searches for access points with SSIDs “SSID1”, “RM_SSID1”, “RM_SSID2”, and “RM_SSID3”.

  When the access point automatic search unit 211 finds the corresponding access point (in this case, the access point of “RM_SSID1”), it notifies the connection processing unit 213 of the SSID (RM_SSID1) of the access point (step 201). Upon receiving this notification, the connection processing unit 213 performs connection processing with this access point based on the connection information of “RM_SSID1” stored in the connection information storage unit 209 (step 202).

  After the connection with the access point, the connection processing unit 213 confirms whether the Web authentication information “RM_SSID1” stored in the connection information storage unit 209 is described (Step 203). When the Web authentication information is described, it is determined that the connection is to a public wireless LAN access point, and the Web authentication processing unit 215 is notified. On the other hand, if the Web authentication information is not described, it is determined that the connection is to a normal wireless LAN access point, and the process is stopped.

  Upon receiving the notification, the Web authentication processing unit 215 uses the Web authentication information (Web authentication user ID and Web authentication password) of “RM_SSID1” stored in the connection information storage unit 209 and the Web authentication server 113 and Web. Perform authentication processing. (Step 204)

  Next, search result display processing for an access point of a public wireless LAN according to the present embodiment will be described with reference to FIG. FIG. 13 shows a flowchart of search result display processing for a public wireless LAN access point. In the following description, it is assumed that the connection information illustrated in FIG. 9 is stored in the connection information storage unit 209 of the wireless communication terminal 100.

  The access point manual search unit 217 searches for an access point in response to a request from the user of the wireless communication terminal 100 (step 300). The access point manual search unit 217 stops the process when the access point cannot be found (step 301).

  On the other hand, when the access point manual search unit 217 finds an access point, the access point manual search unit 217 determines whether the found access point is a public wireless LAN access point. For example, when the SSID of the discovered access point is “RM_SSID1”, the access point manual search unit 217 searches the connection information storage unit 209 for the same connection information as “RM_SSID1”. If the same connection information exists, the access point manual search unit 217 checks whether the Web authentication information of the access point “RM_SSID1” is described (step 302).

  When the Web authentication information is described, the fact that the discovered access point is a public wireless LAN access point and that the user can connect to the access point is displayed as a search result of the access point to the user. Notification is made (step 303). On the other hand, if the Web authentication information is not described, the detected access point is displayed as an access point search result and notified to the user that it is a normal wireless LAN access point (step 304).

  Next, the mapping table update processing of this embodiment will be described with reference to FIG. FIG. 14 shows a flowchart of the mapping table update process. The mapping table update unit 219 confirms whether the latest mapping table exists in the mapping table update server 105 via the wireless LAN communication unit 221 or the cellular network communication unit 223. The mapping table update unit 219 sends the mapping table version information regarding the access point of the public wireless LAN held by the wireless communication terminal 100 to the mapping table update server 105 (step 400).

  When the mapping table update server 105 has a mapping table whose version is newer than the version indicated by the sent version information, the mapping table update server 105 sends the new version mapping table to the mapping table update unit 219 of the wireless communication terminal 100. If there is no new version mapping table, the mapping table update server 105 notifies the mapping table update unit 219 of the wireless communication terminal 100 that there is no new version mapping table, and the mapping table update unit 219 performs the process. Cancel (step 401). Having acquired the latest version of the mapping table, the mapping table updating unit 219 deletes the mapping table that is held, and stores the acquired mapping table as a mapping table related to the access point of the public wireless LAN (step 402).

  Note that the method of periodically inquiring the mapping table update server 105 from the wireless communication terminal 100 has been described as an example, but an event is sent from the mapping table update server 105 to the wireless communication terminal 100 when the mapping table is updated. You may be notified.

  The wireless communication terminal according to the present invention is useful as a wireless communication terminal that automatically generates connection information necessary to connect to an access point of a public wireless LAN.

The block diagram which shows the wireless LAN connection information automatic generation system of one Embodiment The figure which shows the connection sequence with the public wireless LAN by the wireless communication terminal Block diagram showing a wireless communication terminal Block diagram showing the mapping table update server Diagram showing roaming destination table Diagram showing connection information conversion rule table Flowchart of connection information automatic generation processing The figure which shows an example of the connection information and Web authentication information of the access point of public wireless LAN The figure which shows an example of the connection information produced | generated by the connection information automatic generation process The figure which shows an example of the connection information and Web authentication information of the access point of public wireless LAN The figure which shows an example of the connection information produced | generated by the connection information automatic generation process Flow chart of automatic connection processing to public wireless LAN access point Flowchart of search result display process to public wireless LAN access point Mapping table update process flowchart

Explanation of symbols

100 Wireless communication terminals 101, 101A, 101B Public wireless LAN
103 cellular network 105 mapping table update server 111, 111A, 111B access point 113, 113A, 113B Web authentication server 201 connection information setting unit 203 connection setting detection unit 205 mapping table storage unit 207 roaming connection information generation unit 209 connection information storage unit 211 Access point automatic search unit 213 Connection processing unit 215 Web authentication processing unit 217 Access point manual search unit 219 Mapping table update unit 221 Wireless LAN communication unit 223 Cellular network communication unit 301 Mapping table update processing unit 303 Wired LAN communication unit

Claims (9)

A wireless communication terminal connected to a public wireless LAN access point,
A connection information storage unit for storing connection information and Web authentication information for connecting to a public wireless LAN access point;
To generate connection information and Web authentication information for connecting to a roaming destination public wireless LAN access point based on connection information and Web authentication information of a public wireless LAN access point stored in the connection information storage unit A mapping table storage unit for storing a mapping table used for
Referring to the mapping table stored in the mapping table storage unit, the roaming destination public wireless LAN access point from the connection information and Web authentication information of the public wireless LAN access point designated by the user of the wireless communication terminal A roaming connection information generation unit for generating connection information and Web authentication information of
A wireless communication terminal comprising: The wireless communication terminal according to claim 1,
An access point automatic search unit that periodically searches for access points of a public wireless LAN with reference to the connection information stored in the connection information storage unit;
A connection processing unit that performs a connection process to a public wireless LAN access point searched by the access point automatic search unit;
A web authentication processing unit that performs web authentication necessary for connection to the searched public wireless LAN using the web authentication information stored in the connection information storage unit;
A wireless communication terminal comprising: The wireless communication terminal according to claim 1,
A wireless communication terminal comprising an access point manual search unit for searching for an access point of a public wireless LAN in response to a request from the user. The wireless communication terminal according to claim 3,
A wireless communication terminal that notifies or displays a search result by the access point manual search unit including public wireless LAN. The wireless communication terminal according to claim 1,
A wireless communication terminal comprising: a mapping table update unit that acquires the latest mapping table via a network connected to the wireless communication terminal and updates the mapping table stored in the mapping table storage unit. The wireless communication terminal according to claim 5,
A wireless communication terminal comprising a wireless LAN communication unit that communicates with a server on the network via a wireless LAN and receives data of the latest mapping table. The wireless communication terminal according to claim 5,
A wireless communication terminal comprising a cellular network communication unit that communicates with a server on the network via a cellular network and receives data of the latest mapping table. The wireless communication terminal according to claim 1,
The mapping table is
An SSID entry in which an SSID of a public wireless LAN access point for each provider of the public wireless LAN service is registered;
A domain entry in which the domain name of the provider that provides the SSID registered in the SSID entry is registered;
A roaming destination SSID entry in which an SSID of a roaming destination public wireless LAN provided by a public provider providing the SSID registered in the SSID entry is registered;
A wireless communication terminal comprising: A connection information storage unit for storing connection information and Web authentication information for connecting to a public wireless LAN access point;
To generate connection information and Web authentication information for connecting to a roaming destination public wireless LAN access point based on connection information and Web authentication information of a public wireless LAN access point stored in the connection information storage unit A mapping table storage unit for storing a mapping table used for
Referring to the mapping table stored in the mapping table storage unit, the roaming destination public wireless LAN access point from the connection information and Web authentication information of the public wireless LAN access point designated by the user of the wireless communication terminal A roaming connection information generating unit that generates connection information and Web authentication information, and a wireless communication terminal that communicates via a wireless LAN or a cellular network,
A communication unit connectable to the wireless communication terminal;
Mapping table update processing for storing the latest mapping table data and processing to transmit the latest mapping table data to the wireless communication terminal using the communication unit in response to a request from the wireless communication terminal And
A server characterized by comprising:

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