JP2011124781A - Communication system and communication method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication system safely connecting a terminal device in a train to a public communication network, a method for communicating the communication system, the terminal device, a method for communicating the terminal device, a communication program for the terminal device, an out-of-vehicle repeater, a method for communicating the out-of-vehicle repeater, a communication program for the out-of-vehicle repeater, an authentication server, and a method for communicating the authentication server. <P>SOLUTION: The communication system is equipped with: the terminal device 1 conducting a radio communication; the out-of-vehicle repeater 2 being installed around the path of a transport vehicle transporting the terminal device 1, conducting the radio communications with the terminal device 1, transmitting the authentication information of the terminal device 1 and repeating the terminal device 1 and the public communication network 5; and the authentication server 3 receiving the authentication information from the out-of-vehicle repeater 2, deciding whether the received authentication information agree with previously registered authentication information and connecting the terminal device 1 decided to agree with, to the pubic communication network 5. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a communication system and a communication method, and more particularly, to a communication system and a communication method for connecting to a public communication network via a wireless LAN (Local Area Network).

  Recent terminal devices tend to be equipped with a WLAN (Wireless Local Area Network) function. WLAN can receive services free of charge, but in order to connect to a public communication network such as the Internet with peace of mind, it is necessary to realize a speedy and high security connection. One possible solution is to install a function for executing WISPr. WISPr is an abbreviation for Wireless ISP roaming, and is an international roaming standard that automatically performs user authentication when a terminal device belongs to a public access point. As a common usage scene, a commercially available 1-day passport is used to connect a terminal device to a public access point via a wireless LAN. As a result, the terminal device can connect to the public communication network via the wireless LAN, obtain various information from the public communication network, and transmit information.

  The location of the public access point is in the vicinity of the station or on the premises of the station, and communication is generally performed in an area where the terminal device can communicate with the public access point. If the train is in an area where communication with a public access point is possible, the terminal device in the train can also be connected to the public communication network using WLAN. However, since the connection with the public access point becomes impossible when the train moves, the terminal device cannot connect to the public communication network using the WLAN.

  As a solution, it has been proposed to install a relay station in a train and communicate via a repeater (see, for example, Patent Documents 1 to 6). The systems disclosed in Patent Documents 1 to 6 include a terminal device and a relay station, and operate as follows. The terminal device accesses a repeater in the train. The relay station communicates with a base station outside the train. Thereby, the terminal device in the train is connected to the public communication network. In the systems disclosed in Patent Documents 1, 5, and 6, relay stations in a train exchange information with each other. In the systems of Patent Documents 1 and 2, a relay station in a train connects a terminal device in the train to a public access point in or around the station.

WO2006100714 Publication JP 2002-344478 A JP 2008-167270 A Japanese Patent Laid-Open No. 9-084126 Japanese Patent No. 4134696 Japanese Patent No. 4320953

  However, the above-described systems disclosed in Patent Documents 1 to 6 cannot solve the security problem. Therefore, in order to solve this problem, the present invention provides a communication system, a communication method for a communication system, a terminal device, a communication method for a terminal device, and a terminal device that enable a terminal device in a train to be safely connected to a public communication network. It is an object of the present invention to provide a communication program, a vehicle repeater, a communication method for a vehicle repeater, a communication program for a vehicle repeater, an authentication server, and a communication method for an authentication server.

  The communication system of the present invention is installed around a route of a transport device that transports the terminal device and the terminal device, performs wireless communication with the terminal device, transmits authentication information of the terminal device, Receiving authentication information from the vehicle exterior repeater that relays the terminal device and the public communication network, and the vehicle exterior repeater, and determining whether or not the received authentication information matches pre-registered authentication information And an authentication server that connects the determined terminal device to a public communication network.

  In the communication method of the communication system of the present invention, the authentication information of the terminal device is transmitted to an external repeater installed around the route of the transport vehicle, the authentication information is transferred from the external repeater to an authentication server, and transferred. The authentication server determines whether or not the authentication information that has been registered matches the pre-registered authentication information. If the authentication server determines that the authentication information matches, a connection procedure for connecting the terminal device to a public communication network is included.

  The terminal device of the present invention communicates with an outside vehicle repeater installed around the route of the transport vehicle, transmits authentication information to the outside vehicle repeater, and determines that the authentication information matches with the authentication server. And an inter-terminal repeater communication unit connected to a public communication network via the outside-vehicle repeater.

  The communication method of the terminal device according to the present invention communicates with an outside vehicle repeater installed around a route of a transport vehicle, transmits authentication information to the outside vehicle repeater, and determines that the authentication information matches with an authentication server. If it does, it has a terminal connection procedure connected with a public communication network via the said vehicle exterior repeater.

  In the communication program for the terminal device according to the present invention, the communication unit between the terminal repeaters communicates with an outside vehicle repeater installed around the route of the transport vehicle, transmits authentication information to the outside vehicle repeater, and the authentication If it is determined that the information matches in the authentication server, the terminal device is caused to execute a terminal connection procedure that is connected to the public communication network via the outside vehicle repeater.

  The relay device outside the vehicle of the present invention receives the authentication information of the terminal device from a terminal device in a transport vehicle and relays the communication between the terminal device and a public communication network, and the relay The inter-relay server-to-server communication relays the communication between the terminal device and the public communication network when the authentication information received by the inter-terminal communication unit is transmitted to the authentication server and the authentication server determines that the authentication information matches. A section.

  According to the communication method of the vehicle repeater of the present invention, the authentication information of the terminal device is received, the authentication information is transferred to the authentication server, and it is determined that the transferred authentication information matches the authentication information registered in advance. And a relay procedure for relaying communication between the terminal device and the public communication network.

  According to the communication program for an external vehicle repeater of the present invention, the inter-repeater inter-terminal communication unit receives the authentication information of the terminal device, the inter-repeater inter-server communication unit transfers the authentication information to the authentication server, and the transferred authentication If it is determined that the information matches the pre-registered authentication information, the relay terminal communication unit and the relay server communication unit relay a communication procedure for relaying communication between the terminal device and the public communication network. Let the outer repeater execute.

  An authentication server according to the present invention includes an inter-server repeater communication unit that receives authentication information of the terminal device from an outside vehicle repeater installed around a route of a transport vehicle that transports the terminal device, and the inter-server repeater communication. An authentication unit that determines whether or not the authentication information received by the unit matches pre-registered authentication information, and between the public communication network that connects the terminal device and the public communication network And a communication unit.

  In the communication method of the authentication server of the present invention, the authentication information of the terminal device transmitted from an external repeater installed around the route of the transportation vehicle of the terminal device is received, and the received authentication information is registered in advance. It is determined whether or not it matches the authentication information. If it is determined that the authentication information matches, a public communication network connection procedure for connecting the terminal device and the public communication network is included.

  According to the present invention, a communication system that enables a terminal device in a train to be safely connected to a public communication network, a communication method for a communication system, a terminal device, a communication method for a terminal device, a communication program for a terminal device, an outside vehicle repeater It is possible to provide an out-of-vehicle repeater communication method, an out-of-vehicle repeater communication program, an authentication server, and an authentication server communication method.

1 shows an example of a communication system according to a first embodiment. 3 is a flowchart illustrating an example of a communication method of the communication system according to the first embodiment. 3 is a flowchart illustrating an example of a communication method of the terminal device according to the first embodiment. It is a flowchart which shows an example of the communication method of the vehicle exterior repeater which concerns on Embodiment 1. FIG. 4 is a flowchart illustrating an example of a communication method of the authentication server according to the first embodiment. An example of the communication system which concerns on Embodiment 2 is shown. 6 is a flowchart illustrating an example of a communication method of the communication system according to the second embodiment. An example of the communication system which concerns on Embodiment 3 is shown. An example of the communication system which concerns on Embodiment 4 is shown. 10 illustrates an example of a communication system according to a fifth embodiment. It is the schematic when the train which has three vehicles stops at three stations.

  Embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below are examples of the present invention, and the present invention is not limited to the following embodiments. In the present specification and drawings, the same reference numerals denote the same components.

(Embodiment 1)
FIG. 1 shows an example of a communication system according to the first embodiment. The communication system according to the first embodiment includes a terminal device 1, an outside vehicle repeater 2, and an authentication server 3. The terminal device 1 is a mobile phone, for example. The vehicular repeater 2 is a communication device that enables connection to the public communication network 5 using a wireless LAN. For example, a hot spot (registered trademark) is a place where connection to the public communication network 5 is possible using the wireless LAN by using the vehicle exterior repeater 2.

  The terminal device 1 performs wireless communication. The off-vehicle repeater 2 is installed around the route of a transport vehicle that transports the terminal device 1, performs wireless communication with the terminal device 1, transmits authentication information of the terminal device 1 to the authentication server 3, and communicates with the terminal device 1 and the public. The communication network 5 is relayed. The authentication server 3 receives the authentication information from the off-vehicle repeater 2, determines whether or not the received authentication information matches the pre-registered authentication information, and sets the terminal device 1 determined to match the public communication network Connect to 5.

  Here, the transport vehicle is, for example, a train. The authentication server 3 is, for example, an ISP (Internet Service Provider) server. The public communication network 5 is, for example, the Internet. The terminal device 1 and the authentication server 3 perform communication using WISPr on a WLAN, for example. The authentication information is, for example, identification information of the terminal device 1 and a password set by the user of the terminal device 1. The identification information and password of the terminal device 1 are registered in the authentication server 3 in advance.

  Since the authentication server 3 performs user authentication of the terminal device 1, the terminal device 1 in the train can be safely connected to the public communication network 5. Thereby, the user of the terminal device 1 can use the public communication network 5 with peace of mind. In addition, since a WLAN can be used, various services can be received free of charge. Furthermore, since the terminal device 1 in the vehicle can communicate with the outside relay 2, information transmitted from the outside relay 2 can be obtained without going directly to the communication area of the outside relay 2. it can.

  The communication system according to the first embodiment executes the communication method of the communication system according to the first embodiment. FIG. 2 is a flowchart illustrating an example of a communication method of the communication system according to the first embodiment. The communication method of the communication system according to the first embodiment includes a connection procedure S101.

  In the connection procedure S101, the authentication information of the terminal device 1 is transmitted to the vehicle repeater 2 installed around the route of the transport vehicle, the authentication information is transferred from the vehicle repeater 2 to the authentication server 3, and the transferred authentication is sent. The authentication server 3 determines whether or not the information matches the pre-registered authentication information. If it is determined that the information matches, the terminal device 1 is connected to the public communication network 5. By executing this procedure, the authentication server 3 can perform user authentication of the terminal device 1. Thereby, the terminal device 1 in the train can be safely connected to the public communication network 5.

  The terminal device 1 includes a terminal repeater communication unit 11. The inter-terminal repeater communication unit 11 communicates with the off-vehicle repeater 2 installed around the route of the transport vehicle, transmits authentication information to the off-vehicle repeater 2, and determines that the authentication information matches with the authentication server 3. Then, it connects with the public communication network 5 through the vehicle repeater 2. By providing the inter-terminal repeater communication unit 11, the authentication server 3 can perform user authentication of the terminal device 1. Thereby, the terminal device 1 in the train can be safely connected to the public communication network 5.

  The terminal device 1 executes the communication method of the terminal device according to the first embodiment. FIG. 3 is a flowchart illustrating an example of a communication method of the terminal device according to the first embodiment. The communication method of the terminal device according to the first embodiment includes a terminal connection procedure S111.

  In the terminal connection procedure S111, the inter-terminal repeater communication unit 11 communicates with the off-vehicle repeater 2 installed around the route of the transport vehicle, transmits authentication information to the off-vehicle repeater 2, and the authentication information is authenticated. If the server 3 determines that they match, the server 3 is connected to the public communication network 5 via the outside vehicle repeater 2. By executing this procedure, the authentication server 3 can perform user authentication of the terminal device 1. Thereby, the terminal device 1 in the train can be safely connected to the public communication network 5.

  The terminal device 1 may be realized by executing a communication program for the terminal device according to the first embodiment. In this case, the terminal device 1 is caused to execute the flowchart shown in FIG.

  The off-vehicle repeater 2 includes a repeater inter-terminal communication unit 21 and a repeater server-to-reserver communication unit 22. The inter-repeater inter-terminal communication unit 21 receives authentication information of the terminal device 1 from the terminal device 1 in the transport vehicle, and relays communication between the terminal device 1 and the public communication network 5. The inter-repeater server communication unit 22 transmits the authentication information received by the inter-repeater terminal communication unit 21 to the authentication server 3, and when the authentication information is determined to match in the authentication server 3, the terminal device 1 and the public communication network Relay communication between 5. By providing the inter-relay terminal communication unit 21 and the inter-relay server communication unit 22, the authentication server 3 can perform user authentication of the terminal device 1. Thereby, the terminal device 1 in the train can be safely connected to the public communication network 5.

  The out-of-vehicle repeater 2 executes the out-of-vehicle repeater communication method according to the first embodiment. FIG. 4 is a flowchart illustrating an example of a communication method of the vehicle exterior repeater according to the first embodiment. The communication method of the vehicular repeater according to the first embodiment includes a relay procedure S121.

  In the relay procedure S121, the inter-repeater communication unit 21 receives the authentication information of the terminal device 1, the inter-relay server communication unit 22 transfers the authentication information to the authentication server 3, and the transferred authentication information is registered in advance. When it is determined that the authentication information matches, the inter-relay terminal communication unit 21 and the inter-relay server communication unit 22 relay communication between the terminal device 1 and the public communication network 5. By executing this procedure, the authentication server 3 can perform user authentication of the terminal device 1. Thereby, the terminal device 1 in the train can be safely connected to the public communication network 5.

  In addition, you may implement | achieve the vehicle exterior repeater 2 by running the communication program of the vehicle exterior repeater which concerns on Embodiment 1. FIG. In this case, the vehicle exterior repeater 2 is caused to execute the flowchart shown in FIG.

  The authentication server 3 includes a server relay unit communication unit 32, an authentication unit 33, and a public communication network communication unit 34. The inter-server repeater communication unit 32 receives the authentication information of the terminal device 1 from the off-vehicle repeater 2 installed around the route of the transport vehicle that transports the terminal device 1. The authentication unit 33 determines whether or not the authentication information received by the server-repeater communication unit 32 matches the authentication information registered in advance. If the communication unit 34 between the public communication networks determines that the authentication unit 33 matches, the communication unit 34 connects the terminal device 1 and the public communication network 5. Since the authentication server 3 includes the inter-server repeater communication unit 32, the authentication unit 33, and the public communication network communication unit 34, the authentication server 3 can perform user authentication of the terminal device 1. Thereby, the terminal device 1 in the train can be safely connected to the public communication network 5.

  The authentication server 3 executes the authentication server communication method according to the first embodiment. FIG. 5 is a flowchart illustrating an example of a communication method of the authentication server according to the first embodiment. The communication method of the authentication server according to the first embodiment includes a public communication network connection procedure S131.

  In the public network connection procedure S131, the inter-server-repeater communication unit 32 receives and receives the authentication information of the terminal device 1 transmitted from the vehicle repeater 2 installed around the route of the transportation vehicle of the terminal device 1. The authentication unit 33 determines whether or not the authentication information matches the previously registered authentication information. If it is determined that the authentication information matches, the communication unit 34 between the public communication networks connects the terminal device 1 and the public communication network 5. By executing this procedure, the authentication server 3 can perform user authentication of the terminal device 1. Thereby, the terminal device 1 in the train can be safely connected to the public communication network 5.

  The authentication server 3 may be realized by executing a communication program of the authentication server according to the first embodiment. In this case, the authentication server 3 is caused to execute the flowchart shown in FIG.

(Embodiment 2)
FIG. 6 shows an example of a communication system according to the second embodiment. The communication system according to the second embodiment further includes an in-vehicle repeater 6a and an in-vehicle repeater 6b in addition to the communication system according to the first embodiment. The terminal device 1 further includes a selection unit 15.

  The communication system according to the second embodiment executes the communication method of the communication system according to the second embodiment. FIG. 7 is a flowchart illustrating an example of a communication method of the communication system according to the second embodiment. The communication system according to the second embodiment further includes a repeater selection procedure S102 before the connection procedure S101 illustrated in FIG.

  The in-vehicle repeater 6a and the in-vehicle repeater 6b shown in FIG. 6 are installed in the transport vehicle and can communicate with each other. The terminal device 1 transmits the authentication information of the terminal device 1 to the in-vehicle repeater 6a. The in-vehicle repeater 6a receives the authentication information of the terminal device 1 and transmits it to the in-vehicle repeater 6b. The in-vehicle repeater 6b transmits the authentication information of the terminal device 1 to the out-of-vehicle repeater 2 to the out-of-vehicle repeater 2, and relays communication between the terminal device 1 and the out-of-vehicle repeater 2. The off-vehicle repeater 2 transmits the authentication information from the on-vehicle repeater 6b to the authentication server 3, and relays communication between the on-vehicle repeater 6b and the authentication server 3.

  The terminal device 1 can be connected only to the in-vehicle repeater 6a, and only the in-vehicle repeater 6b of the in-vehicle repeater 6a and the in-vehicle repeater 6b can be connected to the out-of-vehicle repeater 2. Even so, the terminal device 1 can be connected to the public communication network 5. Moreover, the terminal device 1 acquires both information transmitted from the vehicle repeater 2 to which the in-vehicle repeater 6a can be connected and information transmitted from the vehicle repeater 2 to which the in-vehicle repeater 6b can be connected. be able to.

  In this case, in the connection procedure S101 shown in FIG. 7, the authentication information of the terminal device 1 is transmitted to the in-vehicle repeater 6a installed in the transport vehicle, and the authentication information is transmitted from the in-vehicle repeater 6b to the out-of-vehicle repeater 2. Forward. Thereafter, the authentication information is transferred from the vehicle repeater 2 to the authentication server 3.

  In this case, in the terminal connection procedure S111 shown in FIG. 3, the inter-terminal repeater communication unit 11 communicates with the in-vehicle repeater 6a installed in the transport vehicle. When it is determined that the authentication information transmitted to the authentication server 3 through the in-vehicle repeater 6a, the in-vehicle repeater 6b, and the out-of-vehicle repeater 2 matches, the inter-terminal repeater communication unit 11 It is connected to the public communication network 5 via the internal repeater 6a, the in-vehicle repeater 6b, and the external repeater 2.

  In this case, in the relay procedure S121 shown in FIG. 4, the inter-relay terminal communication unit 21 receives the authentication information of the terminal device 1 via the in-vehicle repeater 6a and the in-vehicle repeater 6b installed in the transport vehicle. Then, the communication between the in-vehicle repeater 6b and the public communication network 5 is relayed.

  6 may be able to select whether to perform wireless communication with the in-vehicle repeater 6a or to perform wireless communication with the out-of-vehicle repeater 2. The communication environment may differ between the case where wireless communication is performed with the in-vehicle repeater 6a and the case where wireless communication is performed with the external relay 2. In this case, the terminal device 1 can perform communication in a better state by selecting which of the in-vehicle repeater 6a and the out-of-vehicle repeater 2 is connected.

  In this case, in the repeater selection procedure S102 shown in FIG. 7, the selection unit 15 performs wireless communication with the in-vehicle repeater 6a or wireless communication with the outside vehicle repeater 2 installed around the route of the transport vehicle. Select.

  In this case, in the terminal connection procedure S111 shown in FIG. 3, the selection unit 15 selects whether to perform wireless communication with the in-vehicle repeater 6a or to perform wireless communication with the out-of-vehicle repeater 2.

(Embodiment 3)
FIG. 8 shows an example of a communication system according to the third embodiment. In the communication system according to the third embodiment, the terminal device 1 is the mobile phone 101, the vehicle repeater 2 is the hot spot access point 102 using WISPr, the authentication server 3 is the ISP authentication server 103, and the public A case where the communication network 5 is the Internet 105 will be described. The access point 102 is installed in, for example, a store such as McDonald's (registered trademark) or a store in a station such as kiosk (registered trademark).

  The mobile phone 101 used by the user has a WLAN function. The mobile phone 101 communicates with the access point 102 in the hot spot 100, and when it belongs to the access point 102, inputs the ID and password. Thereby, the mobile phone 101 can perform connection authentication with the ISP authentication server 103. The ISP authentication server 103 refers to the ISP customer information DB (Database) 104 to approve the mobile phone 101 and connect the mobile phone 101 to the Internet 105. Thereby, the user can connect the cellular phone 101 equipped with the WLAN function to the Internet 105.

(Embodiment 4)
FIG. 9 shows an example of a communication system according to the fourth embodiment. In the communication system according to the fourth embodiment, a case will be described in which the terminal device 1 is the mobile phone 101, the in-vehicle repeater 6a and the in-vehicle repeater 6b are the relay stations 106, and the public communication network 5 is the Internet 105. .

  A relay station 106 is installed on the train 900. The mobile terminal 101 connects to the relay station 106 using the WLAN function. The relay station 106 is connected to the access point 102 in the nearby hot spot 100. Thereby, the portable terminal 101 in the train 900 can be connected to the Internet 105 using WLAN.

  When the reception sensitivity of the relay station 106 is high, the relay station 106 is connected to an access point 102 at a hot spot in or around the station. The mobile terminal 101 in the train can be connected to the Internet 105 by WISPr via the relay station 106 in the train 900.

(Embodiment 5)
FIG. 10 shows an example of a communication system according to the fifth embodiment. In the communication system according to the fifth embodiment, the terminal device 1 is a mobile phone 101 equipped with a WLAN function, the in-vehicle repeater 6a and the in-vehicle repeater 6b are the relay station 106a, the relay station 106b, and the relay station 106c, and the public A case where the communication network 5 is the Internet 105 will be described.

  The relay station 106a, the relay station 106b, and the relay station 106c are installed in each vehicle. For example, when there are a vehicle 800a, a vehicle 800b, and a vehicle 800a, the relay station 106a is installed in the vehicle 800a, the relay station 106b is installed in the vehicle 800b, and the relay station 106c is installed in the vehicle 800c.

  The relay station 106a, the relay station 106b, and the relay station 106c in the train have high reception sensitivity and can be connected to the access point 102 in or around the station. The relay station 106a, the relay station 106b, and the relay station 106c are connected. Therefore, the cellular phone 101 can be connected to any relay station among the relay station 106a, the relay station 106b, and the relay station 106c. Therefore, once one relay station 106 b is connected to the hotspot access point 102, the mobile phone 101 can be connected to the access point 102 wherever the user in the train is located.

  In particular, when the train is long and the reception capability of the relay station arranged on the train is high, the mobile phone 101 in any vehicle can be connected to an access point in or around the station. Further, when the mobile phone 101 in the train is directly connected to the access point 102 of the hot spot, it may be possible to select whether to communicate via the relay station 106a in the vehicle or directly to the access point 102.

  The operation of the communication system in the fifth embodiment will be described with reference to FIG. FIG. 11 is a schematic diagram when a train having three vehicles stops at three stations. A train 900 in which three vehicles are connected stops in order at the first station 500, the second station 600, and the third station 700.

  A case where the train 900 stops at the first station 500 will be described. The relay station 106 a in the train 900 is connected to the access point 201. The WLAN-equipped mobile phone in the train 900 can be directly connected to the access point 201 in the station, and can also be connected to the relay station 106a. At this time, the WLAN-equipped mobile phone in the train 900 can select to connect directly to the access point 201 or to connect to the access point 201 via the relay station 106a.

  On the other hand, the relay station 106 c in another vehicle in the train 900 is connected to the access point 202. In this case, the WLAN-equipped mobile phone in the train 900 can also be connected to the access point 202. However, the WLAN-equipped mobile phone in the train 900 is connected to one of the access point 201 and the access point 202.

  The case where the train 900 stops at the second station 600 will be described. Relay station 106 b in train 900 is connected to access point 203, and relay station 106 c is connected to access point 204. At this time, the WLAN-equipped mobile phone in the train 900 can be connected to either the access point 203 or the access point 204.

  A case where the train 900 stops at the third station 700 will be described. The relay station 106 a in the train 900 is connected to both the access point 205 and the access point 206. In this case, the WLAN-equipped mobile phone in the train 900 can be connected to either the access point 205 or the access point 206.

  In the third to fifth embodiments, the case where the outside vehicle repeater is a hot spot access point has been described. However, the present invention is not limited to this. For example, instead of an access point, communication with a personal site or a specific database may be performed.

  Since the trains are long and the relay stations 106a, 106b and 106c having high reception sensitivity are mounted on each vehicle, it is possible to connect to access points of hot spots around the station. A mobile phone equipped with a WLAN function of a general user can hardly connect to an access point at a hot spot that is 20 meters or more away. Moreover, the sensitivity of handheld mobile phones is generally lower than 10 dBm. In this case, it is expected that the mobile phone in the train is not only impossible to connect to hotspot access points around the station but also difficult to connect to hotspot access points in the station.

  However, according to the present invention, not only a mobile phone in any vehicle can be connected to an access point in a station, but also can be connected to an access point around the station. Depending on the performance of the relay station 106a, the relay station 106b, and the relay station 106c, the connection with the access point set at a position away from the station depends on the performance of the relay station 106a, the relay station 106b, and the relay station 106c. It becomes possible. Information collection is very easy for mobile phone users in trains.

  The present invention can be used in the information communication industry.

(Supplementary note 1) a terminal device that performs wireless communication;
An outside vehicle repeater that is installed around a route of a transportation vehicle that transports the terminal device, performs wireless communication with the terminal device, transmits authentication information of the terminal device, and relays the terminal device and a public communication network;
An authentication server that receives authentication information from the vehicle repeater, determines whether the received authentication information matches pre-registered authentication information, and connects the terminal device determined to match to a public communication network When,
A communication system comprising:

(Additional remark 2) It further has the in-vehicle repeater installed in the said transport vehicle,
The terminal device transmits authentication information of the terminal device to the in-vehicle repeater,
The in-vehicle repeater transmits authentication information of the terminal device to the external repeater, relays communication between the terminal device and the external repeater,
The external relay device transmits the authentication information from the in-vehicle relay device to the authentication server, and relays communication between the in-vehicle relay device and the authentication server. Communications system.

(Supplementary Note 3) A plurality of in-vehicle repeaters that can communicate with each other,
The terminal device transmits authentication information of the terminal device to any of the in-vehicle repeaters,
The other one of the in-vehicle repeaters transmits authentication information of the terminal device to the out-of-vehicle repeater, and relays communication between the terminal device and the out-of-vehicle repeater. The communication system according to attachment 2.

(Supplementary Note 4) The communication according to Supplementary Note 2 or 3, wherein the terminal device can select whether to perform wireless communication with the in-vehicle repeater or wireless communication with the outside vehicle repeater. system.

(Additional remark 5) The authentication information of a terminal device is transmitted to the relay device outside a vehicle installed around the route of the transportation vehicle, the authentication information is transferred from the relay device outside the vehicle to an authentication server, and the transferred authentication information is A communication method of a communication system including a connection procedure for connecting the terminal device to a public communication network when the authentication server determines whether or not the authentication information matches with pre-registered authentication information.

(Additional remark 6) In the said connection procedure, after transmitting the authentication information of a terminal device to the in-vehicle repeater installed in the transport vehicle, and transferring the said authentication information from the in-vehicle repeater to the outside relay, The communication method of the communication system according to appendix 5, wherein the authentication information is transferred from the off-vehicle repeater to an authentication server.

(Supplementary note 7) In the connection procedure, after the authentication information of the terminal device is transmitted from the terminal device to any one of the plurality of in-vehicle repeaters, another of the plurality of in-vehicle repeaters The communication method of the communication system according to appendix 6, wherein the transmission is performed from any one to the vehicle repeater.

(Supplementary Note 8) A repeater selection procedure for selecting whether to perform wireless communication with the repeater of the transport vehicle or to perform wireless communication with the repeater installed around the route of the transport vehicle,
The communication method of the communication system according to appendix 6 or 7, further comprising before the connection procedure.

(Supplementary Note 9) When the vehicle communicates with an outside vehicle repeater installed around the route of the transport vehicle, transmits authentication information to the outside vehicle repeater, and the authentication server determines that the authentication information matches, the vehicle A terminal device comprising an inter-terminal repeater communication unit connected to a public communication network via an external repeater.

(Appendix 10) The inter-terminal repeater communication unit communicates with an in-vehicle repeater installed in the transport vehicle, relays the in-vehicle repeater and the out-of-vehicle repeater, and transmits to the authentication server. The terminal device according to appendix 9, which is connected to a public communication network via the in-vehicle repeater and the out-of-vehicle repeater when it is determined that the authentication information is matched.

(Supplementary note 11) The terminal device according to supplementary note 10, further comprising a selection unit that selects whether to perform wireless communication with the in-vehicle repeater or wireless communication with the outside of the vehicle repeater.

(Additional remark 12) If it communicates with the vehicle exterior repeater installed around the path | route of a transport vehicle, transmits authentication information to the said vehicle exterior repeater, and it determines with the said authentication information agree | coinciding with an authentication server, the vehicle A communication method for a terminal device having a terminal connection procedure for connecting to a public communication network via an external repeater.

(Supplementary Note 13) In the terminal connection procedure, communication is performed with an in-vehicle repeater installed in the transport vehicle, and the relay is transmitted to the authentication server through the in-vehicle repeater and the out-of-vehicle repeater. 13. The communication method for a terminal device according to appendix 12, wherein when the authentication information is determined to match, the terminal device is connected to a public communication network via the in-vehicle repeater and the out-vehicle repeater.

(Supplementary note 14) In the terminal connection procedure, the terminal device communication according to supplementary note 13, wherein it is selected whether to perform wireless communication with the in-vehicle repeater or wireless communication with the out-of-vehicle repeater. Method.

(Supplementary note 15) The inter-terminal repeater communication unit communicates with an outside vehicle repeater installed around the route of the transport vehicle, transmits authentication information to the outside vehicle repeater, and the authentication information matches with the authentication server. If it is determined, a communication program for a terminal device that causes the terminal device to execute a terminal connection procedure for connecting to a public communication network via the outside vehicle repeater.

(Supplementary Note 16) In the terminal connection procedure, the inter-terminal repeater communication unit communicates with an in-vehicle repeater installed in the transport vehicle, and relays the in-vehicle repeater and the out-of-vehicle repeater. The communication program for a terminal device according to supplementary note 15, wherein when the authentication information transmitted to the authentication server is determined to match, the terminal device is connected to a public communication network via the in-vehicle repeater and the out-vehicle repeater.

(Supplementary note 17) In the terminal connection procedure, the selection unit selects whether to perform wireless communication with the in-vehicle repeater or wireless communication with the out-of-vehicle repeater. A terminal device communication program.

(Supplementary Note 18) A relay inter-terminal communication unit that receives authentication information of the terminal device from a terminal device in a transport vehicle and relays communication between the terminal device and a public communication network;
The relay server that transmits the authentication information received by the inter-repeater terminal communication unit to an authentication server, and relays communication between the terminal device and the public communication network when it is determined that the authentication server matches the authentication server Communication section,
An outside vehicle repeater.

(Supplementary note 19) The inter-repeater terminal-to-terminal communication unit receives authentication information of the terminal device via an in-vehicle repeater installed in the transport vehicle, and between the in-vehicle repeater and the public communication network. The external vehicle repeater according to appendix 18, wherein communication is relayed.

(Supplementary note 20) Upon receiving authentication information of the terminal device, transferring the authentication information to an authentication server, and determining that the transferred authentication information matches the previously registered authentication information, the terminal device and public communication A communication method for an outside vehicle repeater having a relay procedure for relaying communication between networks.

(Supplementary Note 21) In the relay procedure, authentication information of the terminal device is received via an in-vehicle repeater installed in the transport vehicle, and communication between the in-vehicle repeater and a public communication network is relayed. The communication method for an out-of-vehicle repeater according to appendix 20, wherein:

(Supplementary Note 22) The inter-relay terminal communication unit receives the authentication information of the terminal device, the inter-relay server communication unit transfers the authentication information to the authentication server, and the transferred authentication information is registered in advance. If it is determined that they match, the inter-repeater inter-terminal communication unit and the inter-relay server inter-server communication unit cause the off-vehicle repeater to execute a relay procedure for relaying communication between the terminal device and the public communication network. Repeater communication program.

(Supplementary Note 23) In the relay procedure, the inter-repeater terminal-to-terminal communication unit receives the authentication information of the terminal device via an in-vehicle repeater installed in the transport vehicle, and the in-vehicle repeater and the public The communication program for an outside vehicle repeater according to appendix 22, wherein communication between communication networks is relayed.

(Supplementary Note 24) An inter-server repeater communication unit that receives authentication information of the terminal device from an outside vehicle repeater installed around the route of the transport vehicle that transports the terminal device;
An authentication unit for determining whether or not the authentication information received by the inter-server repeater communication unit matches pre-registered authentication information;
When it is determined that the authentication unit matches, a communication unit between public communication networks that connects the terminal device and a public communication network,
An authentication server comprising:

(Additional remark 25) Whether the authentication information of the said terminal device transmitted from the vehicle exterior relay installed around the route | route of the transport vehicle of a terminal device is received, and the received said authentication information corresponds with the authentication information registered previously A communication method of an authentication server having a public communication network connection procedure for connecting the terminal device and a public communication network when it is determined that the terminal device and the public communication network match.

(Supplementary note 26) The inter-server repeater communication unit receives the authentication information of the terminal device transmitted from the vehicle repeater installed around the route of the transport vehicle of the terminal device, and the received authentication information is registered in advance. The authentication unit determines whether the authentication information matches, and if it matches, the communication unit between the public communication networks executes the public communication network connection procedure for connecting the terminal device and the public communication network to the authentication server. Authentication server communication program to be executed.

1: Terminal device 2: Out-of-vehicle repeater 3: Authentication server 5: Public communication networks 6, 6a, 6b: In-vehicle repeater 11: Inter-terminal repeater communication unit 15: Selection unit 21: Repeater inter-terminal communication unit 22 : Inter-repeater server communication unit 32: Inter-server relay communication unit 33: Authentication unit 34: Public communication network communication unit 61a, 61b: In-vehicle communication unit 66a, 66b: Inter-vehicle communication unit 101: Mobile terminals 102, 201 202, 203, 204, 205, 206: Access point 103: ISP authentication server 104: ISP customer information DB
105: Internet 106, 106a, 106b, 106c: Relay station 500: First station 600: Second station 700: Third station 800, 800a, 800b, 800c: Vehicle 900: Train

Claims (10)

A terminal device for performing wireless communication;
An outside vehicle repeater that is installed around a route of a transportation vehicle that transports the terminal device, performs wireless communication with the terminal device, transmits authentication information of the terminal device, and relays the terminal device and a public communication network;
An authentication server that receives authentication information from the vehicle repeater, determines whether the received authentication information matches pre-registered authentication information, and connects the terminal device determined to match to a public communication network When,
A communication system comprising:   The authentication information of the terminal device is transmitted to an outside vehicle repeater installed around the route of the transport vehicle, the authentication information is transferred from the outside vehicle repeater to the authentication server, and the transferred authentication information is registered in advance. A communication method for a communication system, comprising: a connection procedure for connecting the terminal device to a public communication network when the authentication server determines whether or not the authentication information matches, and when the authentication server determines that they match. Communicating with an outside vehicle repeater installed around the route of the transport vehicle, transmitting authentication information to the outside vehicle repeater, and when the authentication information is determined to match by the authentication server, the outside vehicle repeater is A terminal device comprising an inter-terminal repeater communication unit connected to a public communication network via a network. Communicating with an outside vehicle repeater installed around the route of the transport vehicle, transmitting authentication information to the outside vehicle repeater, and when the authentication information is determined to match by the authentication server, the outside vehicle repeater is A terminal device communication method comprising a terminal connection procedure connected to a public communication network via a network. The inter-terminal repeater communication unit communicates with an off-vehicle repeater installed around the route of the transport vehicle, transmits authentication information to the off-vehicle repeater, and determines that the authentication information matches with the authentication server. And a terminal device communication program for causing a terminal device to execute a terminal connection procedure connected to a public communication network via the vehicle exterior repeater. Receiving the authentication information of the terminal device from the terminal device in the transport vehicle, relaying the communication between the terminal device and the public communication network, the relay inter-terminal communication unit;
The relay server that transmits the authentication information received by the inter-repeater terminal communication unit to an authentication server, and relays communication between the terminal device and the public communication network when it is determined that the authentication server matches the authentication server Communication section,
An outside vehicle repeater.   Receiving authentication information of the terminal device, transferring the authentication information to an authentication server, and determining that the transferred authentication information matches the pre-registered authentication information, between the terminal device and the public communication network A communication method for an outside vehicle repeater having a relay procedure for relaying communication.   The inter-relay terminal communication unit receives the authentication information of the terminal device, the inter-relay server communication unit transfers the authentication information to the authentication server, and determines that the transferred authentication information matches the pre-registered authentication information. Then, the communication between the repeater terminal and the communication unit between the repeater servers causes the relay device outside the vehicle to execute a relay procedure for relaying communication between the terminal device and the public communication network. program. A server inter-repeater communication unit that receives authentication information of the terminal device from an outside vehicle repeater installed around the route of the transport vehicle that transports the terminal device; and
An authentication unit for determining whether or not the authentication information received by the inter-server repeater communication unit matches pre-registered authentication information;
When it is determined that the authentication unit matches, a communication unit between public communication networks that connects the terminal device and a public communication network,
An authentication server comprising:   Receives the authentication information of the terminal device transmitted from the vehicle repeater installed around the route of the transport vehicle of the terminal device, and determines whether the received authentication information matches the pre-registered authentication information And a communication method of an authentication server having a public communication network connection procedure for connecting the terminal device and a public communication network when it is determined that they match.

Images