WO2005086518A1 - 通信利用権譲渡システム及び通信端末及び通信プロバイダ - Google Patents
通信利用権譲渡システム及び通信端末及び通信プロバイダ Download PDFInfo
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- WO2005086518A1 WO2005086518A1 PCT/JP2004/002709 JP2004002709W WO2005086518A1 WO 2005086518 A1 WO2005086518 A1 WO 2005086518A1 JP 2004002709 W JP2004002709 W JP 2004002709W WO 2005086518 A1 WO2005086518 A1 WO 2005086518A1
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- WIPO (PCT)
- Prior art keywords
- communication
- transfer
- communication terminal
- certificate
- terminal
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42136—Administration or customisation of services
- H04M3/42153—Administration or customisation of services by subscriber
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/30—Security of mobile devices; Security of mobile applications
- H04W12/35—Protecting application or service provisioning, e.g. securing SIM application provisioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2203/00—Aspects of automatic or semi-automatic exchanges
- H04M2203/60—Aspects of automatic or semi-automatic exchanges related to security aspects in telephonic communication systems
- H04M2203/6072—Authentication using challenger response
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2203/00—Aspects of automatic or semi-automatic exchanges
- H04M2203/60—Aspects of automatic or semi-automatic exchanges related to security aspects in telephonic communication systems
- H04M2203/6081—Service authorization mechanisms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42136—Administration or customisation of services
- H04M3/42178—Administration or customisation of services by downloading data to substation equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/20—Transfer of user or subscriber data
Definitions
- a transfer right transfer certificate is issued by the transfer source communication terminal, and the communication provider communicates to the transfer destination communication terminal accordingly.
- SIM Subscriber Identity Module 1e
- FIG. 14 is a diagram for explaining a conventional method of switching a plurality of terminals using a SIM force.
- the SIM card contains an ID (identifier) that indicates the user who has contracted with the communication provider.
- the authentication key for the communication provider to authenticate the user is stored.
- the communication provider needs to authenticate that the communication terminal is a valid user with a contract.
- the communication provider checks the ID and authentication key in the SIM card against the user information database managed by the communication provider to confirm that the user is a valid user. By replacing this SIM card with another communication terminal B, the user can communicate with communication terminal B instead of communication terminal A.
- Japanese Patent Application Laid-Open Publication No. 2000-123095 proposes a method of transferring the right of an electronic ticket, such as a ticket and a concert ticket, to an electronic ticket. This transfers electronic ticket rights to other devices by proving the transfer of electronic ticket rights using an electronic signature.
- the conventional method of replacing a communication terminal used by a SIM card has a problem that a user has to perform a troublesome task of removing the SIM card from one communication terminal and reinserting the SIM card into another communication terminal.
- An object of the present invention is to provide a method that can switch and use two or more communication terminals more easily. Disclosure of the invention
- a communication use right transfer system includes: a transfer source communication terminal that transmits a certificate permitting transfer of a communication use right;
- a communication provider receives a certificate from the transfer destination communication terminal, authenticates the transfer destination communication terminal based on the certificate, and communicates with the authenticated transfer destination communication terminal.
- At least one of the transfer destination communication terminal and the communication provider stores a certificate and uses the certificate for re-authentication.
- the transfer source communication terminal is characterized in that the certificate has a validity period.
- the communication terminal of the transfer source invalidates the certificate.
- the transfer source communication terminal uses the right to use communication even after transmitting the certificate.
- the transfer source communication terminal is characterized in that it permits the transfer of a usage right with limited usage contents.
- the transfer source communication terminal registers the communication terminals to which the certificate can be sent in the transferable terminal list, and transmits the certificate to the communication terminals registered in the transferable terminal list.
- the transfer source communication terminal includes an intellectual property (“Ted Circuit”) card that performs communication based on the usage right, and a certificate for permitting the transfer of the usage right of the communication of the IC card. It is characterized by transmitting a letter.
- the transfer destination communication terminal includes an integrated circuit (IC) card for performing communication based on the usage right. It is characterized by receiving a certificate that authorizes the transfer of the right to use the communication of the card.
- IC integrated circuit
- the communication terminal includes a certificate creation unit that creates a certificate for permitting transfer of a communication use right;
- a transfer unit that sends the certificate created by the certificate creation unit and transfers the right to use communication.
- the communication terminal receives a certificate permitting transfer of the right to use communication, and receives a certificate to transfer the right to use communication, and communicates using the certificate received by the transfer unit. Use of certificate to perform
- the communication provider receives a connection request from a communication terminal, and transmits an authentication request to the communication terminal.
- An authentication unit that authenticates the communication terminal based on the received certificate, and a communication unit that communicates with the communication terminal when the authentication unit authenticates the communication terminal.
- FIG. 1 is a configuration diagram of a communication use right transfer system according to the first embodiment.
- FIG. 2 is a diagram showing a transfer sequence diagram of the communication use right transfer method according to the first embodiment and a diagram showing each processing unit.
- FIG. 3 is a diagram showing a usage right transfer certificate according to the first embodiment.
- FIG. 4 is an authentication determination flowchart of the authentication unit according to the first embodiment.
- FIG. 5 is a diagram illustrating a user information database before transfer according to the first embodiment.
- FIG. 6 is a diagram showing the user information database after transfer according to the first embodiment.
- FIG. 7 is a diagram illustrating a stop sequence diagram and each processing unit according to the first embodiment.
- FIG. 8 is a diagram showing the usage right transfer cancellation certificate according to the first embodiment.
- FIG. 9 is a configuration diagram of a communication use right transfer system according to the second embodiment.
- FIG. 10 is a diagram showing a use right transfer certificate according to the second embodiment.
- FIG. 11 is a flowchart of an authentication determination by the authentication unit according to the second embodiment.
- FIG. 12 is a diagram showing a user information database before transfer according to the second embodiment.
- FIG. 13 is a diagram showing a user information database after transfer according to the second embodiment.
- FIG. 14 is a diagram illustrating a conventional terminal switching method. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a configuration diagram showing Embodiment 1 of the present invention.
- a communication terminal A 110 is a communication terminal mainly used by a user for communication, and a user contract is concluded with a communication provider 130 (communication provider server).
- the communication provider 130 can be realized by a server computer.
- the communication provider 130 is a communication device that communicates with a communication terminal with a user contract.
- the communication terminal A 110 is a telecommunications device 111 for communicating with the communication provider 130, a terminal ID A 112 that uniquely identifies the communication terminal A 110, and a communication terminal A 110 that uniquely identifies the communication terminal A 110. It consists of a secret key A1 13 for proof, a short-range communication device 1 14 for short-range communication with the communication terminal B 120, and the like.
- a short-range communication device 1 14 for short-range communication with the communication terminal B 120, and the like.
- means for short-range communication there are wired communication in which a cable is connected for communication, and wireless communication such as Bluetooth and infrared.
- the terminal IDA 11. 2 and the secret key A 113 are electronic data, which are stored in a non-volatile memory (not shown) of the communication terminal A 110, a nonvolatile register or a non-volatile storage device. ing.
- the communication terminal B 120 is a communication terminal used by a user to additionally communicate with the communication terminal A 110, such as a car phone or a notebook computer used when the user gets on a car.
- the main examples are communication cards that are installed for car navigation systems to communicate with the outside world.
- the communication terminal B 120 has substantially the same configuration as the communication terminal A 110, but here, the communication terminal B 120 does not have a user contract with the communication provider, and the communication terminal B 1 It is assumed that long distance communication cannot be performed by 20 alone. .
- Terminal IDB 1 2 2 and secret key B 1 2 3 are electronic data.
- the non-volatile memory (not shown) of the communication terminal B 120 is stored in a nonvolatile register or a non-volatile storage device.
- the communication provider 130 manages a long-distance communication device 132 for communicating with a communication terminal, a user information database 131 for managing user information, and the like.
- An actual system such as a mobile phone has a more complicated configuration such as a plurality of base stations, a network node, and a management server, but is not directly related to the present embodiment.
- the configuration will be described.
- S S means the processing procedure of the communication use right transfer method.
- FIG. 2 is a diagram showing a method of transferring the communication use right of the communication use right transfer system.
- FIG. 2 also shows the processing units of the communication terminal A 110, the communication terminal B 120, and the communication provider 130.
- the communication terminal B 120 attempts to start using the long-distance communication (S 201), first, it requests the communication terminal A to connect to the short-distance communication line (S 200). ). Thereafter, a communication line establishment process (S203) corresponding to the type of the short-range communication is performed between the communication terminal A110 and the communication terminal B120. A line is established (S204).
- the certificate creation unit 4111 of communication terminal A 110 transfers the mobile phone use right of communication terminal A 110 to communication terminal B 120. It is determined whether or not (S206). This determination method includes:
- the certificate creation unit 4111 of the communication terminal A 110 creates a use right transfer certificate (S207).
- the use right transfer certificate is also simply referred to as a transfer certificate or a certificate.
- FIG 3 shows an example of a usage right transfer certificate.
- the usage right transfer certificate includes the terminal IDA 112 of the communication terminal A 110 as the transfer source and the terminal ID B 122 of the communication terminal B 120 as the transfer destination.
- the use transfer certificate is electronic data and is stored in the memory or the storage device.
- the usage right transfer certificate may include usage right transfer conditions such as a time limit.
- An electronic signature is added to the use right transfer certificate using the secret key A113 of the communication terminal A110, and the use right transfer certificate is issued by the communication terminal A110 by the electronic signature. It is proved that it was done.
- the transfer unit 4 1 2 sends this certificate to the communication terminal B 1 20.
- the transfer unit 4 222 of the communication terminal B 120 receives and stores the transfer certificate.
- the certificate-using communication unit 4 23 of the communication terminal B 120 requests the communication provider to connect to the long-distance communication line (S 209).
- a line connection is requested is described here, the same applies to a procedure called location registration for registering the location of a communication terminal with a communication provider in order to receive an incoming call.
- the authentication request unit 431 of the communication provider 13 ⁇ Upon receiving the request for the line connection, the authentication request unit 431 of the communication provider 13 ⁇ issues an authentication request to the communication terminal B 120 (S 210).
- the authentication for example, there is a method in which a random number created by the communication provider 130 is included in the authentication request, and a signature signed using the secret key of the communication terminal B 120 is returned.
- the certificate-using communication section 4 23 of the communication terminal B 120 returns an authentication response that is a response to the authentication request (S 2 11). At this time, the transfer certificate received from the communication terminal A 110 is transmitted to the communication provider 130 together with the authentication response.
- the authentication unit 432 of the communication provider 130 checks whether or not the communication terminal B120 has a valid use right from the received authentication response and the transfer certificate (S2122).
- FIG. 4 shows an example of the authentication judgment processing by the authentication unit 432 of the communication provider 130.
- FIG. 5 shows an example of the user information database 13 1.
- the terminal ID, public key, presence / absence of user contract, user name, and telephone number are stored in advance for each communication terminal.
- This user information database contains the If the terminal ID is not included, authentication fails (S408). Note that even if the terminal ID included in the authentication response is not included in the user information database, the authentication may be set to OK. In this case, for the communication terminal, the terminal ID, public key, presence / absence of a user contract, user name, and telephone number may be obtained from communication terminal B and registered. Alternatively, use may be permitted without registering the communication terminal in the user information database.
- the process proceeds to the next authentication response signature confirmation processing (S 402).
- the digital signature included in the authentication response is verified using the public key of the communication terminal B120 stored in the user information database in advance. If the verification fails, authentication fails (S408).
- the transfer source terminal ID is included in the user information database.
- the transfer destination terminal ID must be the same as the communication terminal that returned the authentication response (in this case, communication terminal B 120).
- the transfer source communication terminal has a user contract.
- FIG 6 shows an example of the user information database after reflecting the transfer of usage rights.
- the transfer status of communication terminal A is “transferring” (“transferring” means that the transfer has been completed. The same applies to the following.), And the terminal ID and time limit of communication terminal B as the transfer destination communication terminal Recorded.
- the transfer status of communication terminal B becomes “acquiring” (“transferring” means “acquired”; the same applies to the following.), And the terminal ID of communication terminal A and the time limit Recorded.
- the communication section 4 3 3 of the communication provider 130 is a communication terminal
- a response to the mobile phone line connection (permitted / not permitted depending on the authentication result) is sent to B120 (S213). If the mobile phone line connection is responded with permission, communication can be performed thereafter (S2114).
- the communication provider 130 requests re-authentication to the communication terminal, the fact that the information has been transferred to the user information database of the communication provider 130 at the first authentication is stored. There is no need to send a transfer certificate at the time of authentication.
- the communication sequence in this case is the same as S210 to S213 in Fig. 2, but the transfer certificate confirmation process (Fig. 4) is different. If the transfer certificate is not attached to the authentication response in S404, the user information
- the database (Fig. 6) is checked to see if the usage right has already been transferred (S409). In this case, since the use right has already been transferred from the communication terminal A and the use conditions (in this case, the time limit) are satisfied, the authentication is successful (S407).
- the transfer certificate stored in the communication terminal is stored by the communication terminal B 120 whose transfer right has been transferred each time re-authentication is performed. It can also be authenticated by responding to the certificate to the base station. In this case, the communication terminal to which the usage right has been transferred does not need to communicate, and power consumption can be reduced.
- the communication terminal of the transfer destination cannot use the mobile phone, and the transfer source mobile phone will It can be used. For example, if the use right of a portable communication terminal has been transferred to the communication terminal mounted on the car, the user may get off the car with the portable communication terminal or turn off the power of the car. If the time limit expires, the communication can be automatically performed with the portable communication terminal.
- the start and end of use may be specified as the validity period described in the transfer certificate. Also, the available day of the week and the available month and day may be specified.
- the transfer of the usage right of the transfer destination communication terminal can be forcibly invalidated by performing an operation on the transfer source communication terminal side. For example, when the transfer source communication terminal starts communication, the transfer is automatically released, so that the transfer source communication terminal can automatically communicate. Sea in this case Figure 7 shows the cans.
- the communication use right is transferred to the communication terminal B 120, and the communication terminal B 120 is in a state of performing long-distance communication (S 701), the communication terminal A1 1 ⁇ attempts to start communication ( S702), the suspension requesting part 419 of the communication terminal A110 transmits a use right transfer suspension request to the communication provider 130 (S703).
- the request to suspend the transfer of the right of use includes the terminal IDA of the communication terminal A that is the transfer source of the right of use, and includes the certificate of suspension of the transfer of the right of use signed by the secret key A of the terminal A of the communication.
- the usage right transfer suspension certificate is electronic data and is stored in the memory.
- the suspension unit 439 of the communication provider 130 receives the use right transfer suspension certificate and checks whether or not it has a valid suspension right (S704).
- the transfer status between the communication terminal A and the communication terminal B in the user information database 1331 is cleared (S705). Then, the disconnection is notified to the communication terminal B (S706).
- the long-distance communication device 133 disconnects the communication with the communication terminal B (S707).
- the canceling unit 439 notifies the communication terminal A that the transfer of the usage right has been invalidated (S708). After that, the communication provider 130 and the communication terminal A can start communication by normal processing (S709 to S713).
- the transfer right Can be stopped. For example, if the user gets off the car with the portable communication terminal or turns off the power of the car, then the mobile communication terminal can automatically perform long-distance communication.
- the transfer source communication terminal transfers the usage right to the transfer destination communication terminal.
- the transfer source communication terminal may be used as it is or may not be used.
- the transferable communication terminal list can be transferred in advance without confirming to the user that the transfer source communication terminal A 110 transfers the usage right to the communication terminal B 120. It may be configured so that the transfer is unconditionally accepted when a request for transfer of the usage right is received from a communication terminal included in the transferable terminal list. With this configuration, the user does not need to operate and check each time.
- the communication terminal A 110 may automatically or after confirming with the user and register it in the transferable terminal list. .
- the transfer destination communication terminal requests the transfer destination communication terminal to transfer the usage right at the start of communication.However, the transfer of the usage right is performed not by the start of long-distance communication but by an independent user operation. Needless to say, the request may be required. Of course, the transfer of the usage right may be automatically requested when the transfer destination communication terminal is turned on.
- the right to use communication when the right to use communication is transferred from one communication terminal A 110 to another communication terminal B 120, the right of use transfer
- the communication use right transfer method in which the communication terminal issues a communication terminal and the communication provider 130 permits communication to the transfer destination communication terminal B 120 has been described.
- the transfer right certificate is transmitted from the transfer source communication terminal A 110 to the transfer destination communication terminal B 120, and the transfer right transfer certificate is transmitted from the transfer destination communication terminal to the communication provider 13.
- the communication provider when receiving the usage right transfer certificate, the communication provider saves the contents of the certificate, and at the time of re-authentication, confirms the transfer using the contents of the certificate saved by the communication provider.
- the method of assigning communication usage rights which is characterized in that it is performed, has been described.
- the transfer of the usage right certificate stored in the communication terminal to be transferred is transferred to the communication provider to confirm the transfer.
- the transfer right is automatically revoked when the time limit expires, unless the transfer right certificate is renewed. The method has been described.
- the communication use right transfer method which is characterized in that the transfer of the use right is automatically stopped when the short-range communication line between the transfer source communication terminal and the transfer destination communication terminal is disconnected.
- the communication right transfer method is described in which the transfer destination communication terminal automatically searches for a communication terminal that can receive the transfer of the usage right and requests the transfer, at the start of communication.
- the communication right transfer method characterized in that the transfer destination communication terminal automatically searches for a communication terminal that can receive the transfer of the right when power is turned on, and requests that the transfer be transferred.
- the communication user contract of one communication terminal can be used by another communication terminal.
- Embodiment 2 After purchasing the second communication terminal, the user can use the terminal immediately without requesting the user to register with the communication provider.
- Embodiment 2 After purchasing the second communication terminal, the user can use the terminal immediately without requesting the user to register with the communication provider.
- the terminal ID and the secret key are stored in the memory or the storage device of the communication terminal of the transfer source or the transfer destination, but one or both of the terminal ID and the secret key are stored in another memory such as a SIM card. May be stored in a non-volatile storage medium.
- Figure 9 shows the configuration in this case.
- IC cards 140 and 150 storing a user ID and a secret key are inserted (connected) to the communication terminal.
- the communication sequence in this case is almost the same as that in FIG. 2 of the first embodiment, but some internal processing is different. There are points to explain.
- communication terminal B 120 when communication terminal B 120 attempts to start using long-distance communication (S 201), it first requests communication terminal A for short-distance communication line connection (S 202 ). Thereafter, a communication line establishment process (S203) corresponding to the type of the short-range communication is performed between the communication terminal A110 and the communication terminal B120. A line is established (S204).
- the communication terminal B 120 When a communication line is established between the communication terminal A 110 and the communication terminal B 120, the communication terminal B 120 requests the communication terminal A 110 to transfer the communication use right including the user IDD. Is transmitted (S205). Upon receiving the mobile phone use right transfer request, communication terminal A 110 determines whether or not to transfer the use right of the mobile phone possessed by IC card C in communication terminal A 110 to communication terminal B 120. The judgment is made (S206). If the communication terminal A 110 is to transfer the communication use right, it creates a use right transfer certificate (S2'07). Figure 10 shows an example of a usage right transfer certificate in this case.
- the use right transfer certificate includes the user IDC 141 of the IC card C of the communication terminal A 110 of the transfer source and the user ID D 151 of the communication terminal B 120 of the transfer destination. I have.
- the usage right transfer certificate may include usage right transfer conditions such as a time limit.
- An electronic signature is added to the use right transfer certificate by using the secret key 144 of the IC card C of the communication terminal A 110, and the use right transfer certificate is transmitted to the communication terminal A 110 by this electronic signature. It is proved that the card was issued by the IC card C140 inside. This certificate is transmitted to communication terminal B 120.
- Communication terminal B 120 receives and stores this transfer certificate.
- the creation and signing of the usage right transfer certificate is performed on the communication terminal A 110
- all or part of the processing may be performed in the IC card C140 of the communication terminal A.
- the communication terminal B 120 requests the communication provider to connect to the long-distance communication line (S 209).
- the communication provider 130 Upon receiving the line connection request, the communication provider 130 issues an authentication request to the communication terminal B 120 (S210). In the authentication, for example, a random number generated by the communication provider 130 is included in the authentication request, and a signature signed using the secret key D155 of the IC card D150 of the communication terminal B120 is included in the authentication request. There is a method such as responding.
- the communication terminal B 1 20 returns an authentication response which is a response to the authentication request (S 2 1 1). At this time, the transfer certificate received from the communication terminal A 110 is transmitted to the communication provider 130 together with the authentication response.
- the communication provider 130 checks whether or not the communication terminal B 120 has a valid use right from the received authentication response and the transfer certificate (S2122).
- Figure 11 shows an example of authentication judgment processing by this communication provider.
- Figure 12 shows an example of the user information database 13 1.
- the terminal ID, public key, presence / absence of a user contract, user name, and telephone number are stored for each communication terminal. If the user information database 13 1 does not include the terminal ID included in the authentication response, authentication will fail. (S1008).
- the process proceeds to the next authentication response signature confirmation processing (S1002).
- the authentication response signature confirmation processing the electronic signature included in the authentication response is verified using the public key of the IC card D150 stored in the user information database 1331 in advance. If this verification fails, the authentication fails (S1008).
- the transfer source user ID is included in the user information database.
- the transferee's user ID is the same as the user ID included in the authentication response (in this case, user ID 151).
- Figure 13 shows an example of the user information database after reflecting the transfer of usage rights.
- the transfer status of the IC card C is "transferring", and the user ID of the IC card D and the time limit are recorded as the transfer destination.
- the transfer status of IC card D is “transferring”, and the user ID of IC card C and the time limit are recorded as the transfer source.
- a response to the mobile phone line connection (permission / non-permission based on the authentication result) is sent to 20 (S213). If the mobile phone line connection is responded with permission, communication can be performed thereafter (S2114).
- Embodiment 2 is characterized in that the use right is transferred from the user ID in the IC card in the transfer source communication terminal, not from the terminal ID in the transfer source communication terminal.
- the use right is transferred from the user ID in the IC card in the transfer source communication terminal, not from the terminal ID in the transfer source communication terminal.
- the communication user contract of one IC card can be used by a communication terminal in which another IC card is inserted.
- the medium on which user information is recorded such as an IC card
- the second embodiment it is not necessary to previously register the IC card for transferring the usage right and the IC card for transferring the usage right to the communication provider. So the user
- the IC card After purchasing a C card ⁇ communication terminal, it can be used immediately without requesting a user to register as a communication provider.
- the IC card is also inserted into the communication terminal receiving the usage right, and this Ic card transfers the usage right, but instead of the user ID and secret key in the IC card, the IC card is used.
- the terminal ID and secret key stored directly in the communication terminal may be used.
- the name of the IC card in this embodiment may be called other names such as an ID card, a memory card, an identification card, a personal card, a permission card, and the like.
- the hardware configuration and software configuration of the communication terminal A 110, the communication terminal B 120, and the communication provider 130 will be described.
- the communication terminal A l 10 and the communication terminal B 1 are identical to each of the above-described embodiments.
- the communication provider 130 has a CPU (CentralProcessingUnit) for executing a program.
- CPU CentralProcessingUnit
- RAM Random Access Memory
- LCD Liquid Display
- K / B Keyboard
- mouse FDD (Flexible Disk Drive)
- magnetic disk device FDD (Flexible Disk Drive)
- CDD Compact Disk Drive
- printer device scanner device, etc. It may be.
- ROM, RAM, FDD, and CDD are examples of storage devices.
- the communication board has a function of wired communication or wireless communication.
- the communication board may be connected to LAN (Loaca1AreaNewwork), the Internet, or a WAN (Wide Area Network).
- LAN Local Areaca1AreaNewwork
- WAN Wide Area Network
- the storage device stores an operating system (OS), a window system, programs, and files (database).
- OS operating system
- window system programs
- files files
- the programs are executed by CPU, os, window system, etc.
- a part or all of the components of the communication terminal A 110, the communication terminal B 120, and the communication provider 130 may be configured by a program executed by the CPU. Alternatively, it may be realized by firmware stored in ROM. Alternatively, it may be realized by software only, hardware only, or a combination of software, hardware, and firmware.
- the program group includes In the description, the functions described as "-" and the processes described as "S-" are executed.
- the program to be executed is stored. These programs are coded, for example, using C, HTML, SGML, XML, and other languages.
- the above programs are also used for magnetic disk devices, FDs (flexible disks), optical disks, CDs (compact disks), MDs (mini disks), DVDs (Digita 1 Versati 1 e Disk), etc. It is stored on other recording media using a recording device.
- each of the above-described embodiments is also effective as an invention of a method, an invention of a program, and an invention as a recording medium.
- the communication user contract of one communication terminal can be used by another communication terminal. Therefore, the communication terminal can be used flexibly.
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JP2001197570A (ja) * | 2000-01-17 | 2001-07-19 | Nec Corp | 無線通信システム |
JP2001298773A (ja) * | 2000-04-13 | 2001-10-26 | Nec Corp | 無線通信機の利用権移動システム及び方法 |
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JP2000123095A (ja) * | 1998-08-12 | 2000-04-28 | Nippon Telegr & Teleph Corp <Ntt> | 電子チケット記録媒体、処理方法及び処理装置 |
JP2001197570A (ja) * | 2000-01-17 | 2001-07-19 | Nec Corp | 無線通信システム |
JP2001298773A (ja) * | 2000-04-13 | 2001-10-26 | Nec Corp | 無線通信機の利用権移動システム及び方法 |
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