JP7666263B2 - Contract system and computer program - Google Patents

Description

The present disclosure relates to a contract system and a computer program.

In recent years, communication terminals are required to provide faster and more stable data communication. When the maximum communication speed is limited to a speed slower than normal or in an environment without a public wireless LAN, data communication cannot be performed satisfactorily. Therefore, a technique is known in which a subscriber uses a communication terminal to enter into a contract for communication services with a telecommunications carrier. By entering into a contract for communication services with a telecommunications carrier, the subscriber can perform satisfactory data communication using the communication terminal. Patent Document 1 describes a technique in which a new subscriber enters into a new contract using a communication terminal that has already entered into a contract with a contracting institution. With this technique, for example, a new subscriber can newly subscribe another communication terminal to the communication service using a communication terminal that has already entered into a contract with the telecommunications carrier, which is the contracting institution.

JP 2002-216055 A

However, the technology described in Patent Document 1 requires borrowing someone else's communication terminal, and does not take into account the case where there are no acquaintances nearby. If there are no acquaintances nearby, the technology in Patent Document 1 may not be able to enter into a new contract with a telecommunications carrier, and data communications may not be performed satisfactorily. For this reason, there has been a demand for other technology that allows a contract for data communications to be made.

The present disclosure has been made to solve the above-mentioned problems, and can be realized in the following forms.
According to one embodiment of the present disclosure, a contract system is provided that automatically processes a contract so that a wireless communication terminal can use a communication line via the communication terminal. The contract system includes a communication terminal that is connected to the communication line provided by a telecommunications carrier and transmits a signal indicating that sharing of the communication line may be permitted, and a wireless communication terminal that can request permission to share the communication line from the transmitting communication terminal via wireless communication. The communication terminal determines whether or not to permit sharing of the communication line of the wireless communication terminal, and when the wireless communication terminal permits sharing of the communication line, restricts the end of sharing of the communication line until the wireless communication terminal terminates use of the communication line. When the wireless communication terminal permits sharing of the communication line, the wireless communication terminal uses the communication line via the communication terminal.

(1) According to one embodiment of the present disclosure, a contract system is provided. The contract system includes a communication terminal that is connected to a communication line provided by a telecommunications carrier and transmits a signal indicating that sharing of the communication line may be permitted, and a wireless communication terminal that can request permission to share the communication line from the communication terminal that is transmitting the signal via wireless communication. The communication terminal determines whether or not to permit sharing of the communication line of the wireless communication terminal. When the communication terminal is permitted to share the communication line, the wireless communication terminal uses the communication line via the communication terminal.
In this manner, the wireless communication terminal can request permission to share the communication line, and therefore can make a contract for data communication even in an environment where the maximum communication speed is limited or where there is no public wireless LAN.
(2) In the contract system of the above type, the wireless communication terminal may request permission to share the communication line from a plurality of the communication terminals, and may use the communication line via the communication terminal that is the first of the plurality of communication terminals that satisfies predetermined conditions to permit sharing of the communication line.
With this configuration, the wireless communication terminal can request permission to share the communication line with a plurality of communication terminals, thereby making it possible to make a contract for more reliable data communication.
(3) In the contract system of the above form, the wireless communication terminal may transmit information about the wireless communication terminal to the communication terminal when making the request, and the communication terminal may allow sharing of the communication line of the wireless communication terminal if the wireless communication terminal satisfies predetermined conditions based on the information about the wireless communication terminal.
In this manner, for example, the communication terminal can automatically permit sharing of the communication line to a wireless communication terminal that has permitted sharing of the communication line in the past or a wireless communication terminal that has used a communication volume less than a predetermined volume in the past. Therefore, a wireless communication terminal that satisfies the conditions can enter into a contract for more reliable data communication.
(4) In the contract system of the above aspect, the wireless communication terminal may provide a reward to the communication terminal that has permitted sharing of the communication line.
In this embodiment, the communication terminal can receive a reward, which can promote permission to share the communication line, making it easier for the wireless communication terminal to use the communication line.
(5) In the contract system of the above aspect, the remuneration may be lower than an amount paid by the communication terminal to the telecommunications carrier for use of the communication line.
In this manner, a wireless communication terminal user can use a communication line at a lower price than if he or she were to make a direct contract with a telecommunications carrier that provides the communication line.
(6) In the contract system of the above form, the wireless communication terminal may request permission to share the communication line from multiple communication terminals, and use the communication line via a communication terminal among the multiple communication terminals that offers the cheapest remuneration.
In this manner, wireless communication terminal users can use the communication line at a low cost.
(7) In the contract system of the above type, the wireless communication terminal may present to a user of the wireless communication terminal at least one of the communication strengths, communication speeds, and the rewards of a plurality of communication terminals, and prompt the user to select a communication terminal to use for utilizing the communication line.
In this embodiment, the user can use the presented information to select a communication terminal to be used for utilizing the communication line.
(8) In the contract system of the above aspect, the wireless communication terminal may request permission to share the communication line from multiple communication terminals, and use the communication line via a communication terminal among the multiple communication terminals having the strongest communication strength.
In this manner, a wireless communication terminal user can perform stable data communication.
(9) In the contract system of the above type, the wireless communication terminal requests permission to share the communication line from multiple communication terminals, and uses the communication line through a communication terminal among the multiple communication terminals that has the highest communication speed.
In this manner, a wireless communication terminal user can perform data communication at a high communication speed.
(10) In the above-described contract system, the communication terminal connects to the communication line via a repeater capable of wireless communication, and when the wireless communication terminal is permitted to share the communication line, connection information for connecting to the repeater is transmitted to the wireless communication terminal, and the wireless communication terminal may connect to the communication line via the repeater using the connection information.
With this configuration, even if the communication terminal is performing wired communication, the wireless communication terminal can use the communication line via the repeater.

This disclosure can be realized in various forms, for example, as a method of concluding a contract, etc.

FIG. 1 is a diagram showing a schematic configuration of a contract system. 11 is a sequence diagram showing an example of a process in which a wireless communication terminal concludes a contract with another communication terminal; FIG. 13 is an example of a screen displayed by the wireless communication terminal at the event E110. 13 is an example of a screen displayed by the communication terminal at the event E120. FIG. 11 is a sequence diagram showing an example of a process in which a wireless communication terminal concludes a contract with another communication terminal in the second embodiment. FIG. 13 is a sequence diagram showing an example of a process in which a wireless communication terminal concludes a contract with another communication terminal in the third embodiment. FIG. 13 is a diagram showing a schematic configuration of a contract system according to a fifth embodiment. 13 is an example of a map displayed as a screen in another embodiment.

A. First embodiment:
1 is a diagram showing a schematic configuration of a contract system 100 according to an embodiment of the present disclosure. The contract system 100 includes a wireless communication terminal 10 and a communication terminal 20 connected to a communication line INT provided by a telecommunications carrier. The contract system 100 is a system that concludes a contract with the communication terminal 20 so that the wireless communication terminal 10 can use the communication line INT via the communication terminal 20.

The wireless communication terminal 10 is a terminal capable of wireless communication with the communication terminal 20. In this embodiment, the wireless communication terminal 10 is a smartphone. Note that the wireless communication terminal 10 is not limited to a smartphone, and may be, for example, a personal computer, a tablet PC, or a car navigation device. The wireless communication terminal 10 can use, for example, Wi-Fi (registered trademark) or Bluetooth (registered trademark) as wireless communication.

The wireless communication terminal 10 has a functional unit 11. The functional unit 11 is composed of a central processing unit (CPU), a microcomputer configured with RAM, and ROM, and executes a process of concluding a contract with the communication terminal 20, which will be described later, by the microcomputer executing a computer program that has been installed in advance.

In this embodiment, the communication terminal 20 is a smartphone equipped with a tethering function. Note that the communication terminal 20 is not limited to a smartphone, and may be, for example, a personal computer or a tablet PC. The communication terminal 20 transmits a message indicating that there is a possibility of allowing sharing of the communication line INT. The communication terminal 20 may also transmit information related to the communication terminal 20. The information related to the communication terminal 20 is, for example, information such as the name of the communication terminal 20, the available time when sharing of the communication line INT is permitted, and the amount of communication available per predetermined unit time.

The communication terminal 20 has a functional unit 21. The functional unit 21 is composed of a microcomputer configured with a central processing unit (CPU), RAM, and ROM, and executes a process of concluding a contract with the wireless communication terminal 10, which will be described later, by the microcomputer executing a pre-installed computer program.

Figure 2 is a sequence diagram showing an example of the process in which wireless communication terminal 10 concludes a contract with communication terminal 20.

First, in event E100, the wireless communication terminal 10 searches the vicinity of the wireless communication terminal 10 to detect the communication terminal 20. More specifically, the wireless communication terminal 10 receives beacons transmitted by the surrounding communication terminals 20 via wireless communication to detect the surrounding communication terminals 20.

Next, in event E110, the wireless communication terminal 10 determines the communication terminal 20 that has transmitted the information that there is a possibility of allowing sharing of the communication line INT detected in event E100 as the request destination. The wireless communication terminal 10 wirelessly requests permission to share the communication line INT from the communication terminal 20 determined as the request destination. The wireless communication terminal 10 also transmits information about the wireless communication terminal 10. The information about the wireless communication terminal 10 is, for example, information such as the user name of the wireless communication terminal 10, the planned date and time of use, and the planned communication volume to be used. In this embodiment, "transmission" refers to transmitting information to the specified other device directly or indirectly via another device.

Figure 3 is an example of a screen S1 displayed by the wireless communication terminal 10 during event E110. The wireless communication terminal 10 displays the name of the communication terminal 20 detected during event E100, the signal strength, the available time, and a button b1 for selecting whether or not to request permission to share the communication line INT, and a button b2 for executing the permission request. Note that if multiple communication terminals are detected during event E100, the wireless communication terminal 10 displays the detected communication terminals in a list.

Next, in event E120 (see FIG. 2), the communication terminal 20 determines whether or not to allow the wireless communication terminal 10 to share the communication line INT.

Figure 4 is an example of a screen S2 displayed by the communication terminal 20 in event E120. The communication terminal 20 displays buttons b3 and b4 that allow the user name of the wireless communication terminal 10 that has requested sharing of the communication line INT, the scheduled date and time of use, the scheduled communication volume, and whether or not to allow sharing of the communication line INT of the wireless communication terminal 10. When button b3 is pressed, the communication terminal 20 transmits permission to share the communication line INT to the wireless communication terminal 10. On the other hand, when button b4 is pressed, the communication terminal 20 transmits a denial of permission to share the communication line INT to the wireless communication terminal 10. The following describes an example in which the communication terminal 20 permits sharing of the communication line INT of the wireless communication terminal 10. In this embodiment, the communication terminal 20 permits sharing of the communication line INT to the wireless communication terminal 10 by operating as an access point.

Next, the wireless communication terminal 10 determines the sharing destination in event E130 (see FIG. 2). The wireless communication terminal 10 notifies the communication terminal 20 that it has been determined as the sharing destination. At this point, a contract is concluded between the wireless communication terminal 10 and the communication terminal 20. The communication terminal 20, which has received the notification that the sharing destination has been determined, transmits to the wireless communication terminal 10 information for connecting the communication terminal 20 as an access point to the communication line INT. The "information for connecting" is, for example, information including a password required for a Wi-Fi connection. It is preferable that this information is encrypted. The password required for a Wi-Fi connection may also be a one-time password. The wireless communication terminal 10 uses the received information for connecting to use the communication line INT via the communication terminal 20.

According to the contract system 100 of this embodiment described above, the wireless communication terminal 10 can request permission to share the communication line INT from the communication terminal 20. Therefore, even if the maximum communication speed is limited or in an environment without a public wireless LAN, a contract for data communication can be made.

B. Second embodiment:
The contract system 100 in the second embodiment differs from the first embodiment in that the wireless communication terminal 10 grants a reward to the communication terminal 20. Since the configuration of the contract system 100 in the second embodiment is the same as the configuration of the contract system 100 in the first embodiment, a description of the configuration of the contract system 100 will be omitted.

FIG. 5 is a sequence diagram showing an example of a process in which the wireless communication terminal 10 concludes a contract with the communication terminal 20 in the second embodiment. The wireless communication terminal 10 grants a reward to the communication terminal 20 in event E140. The reward is, for example, money or virtual currency. The reward may be fixed, or may be determined according to the amount of communication in the communication performed via the communication terminal 20. In addition, the contract system 100 may determine the reward, the wireless communication terminal 10 may determine the reward, or the communication terminal 20 may determine the reward.

In this embodiment, the reward is money, and the wireless communication terminal 10 grants the reward when the use of the communication line INT via the communication terminal 20 is completed. The amount of the reward is determined according to the amount of communication in the communication performed via the communication terminal 20. The amount of the reward is preferably lower than the amount that the wireless communication terminal 10 would pay if it were to contract directly with the provider of the communication line INT. In this embodiment, the wireless communication terminal 10 grants the reward directly to the communication terminal 20. The wireless communication terminal 10 transfers the reward to an account specified by the communication terminal 20, for example.

According to the contract system 100 of this embodiment described above, the communication terminal 20 can receive a reward, which can encourage permission to share the communication line INT. This makes it easier for the wireless communication terminal 10 to use the communication line INT.

In addition, the amount of the remuneration is lower than the amount that the wireless communication terminal 10 would pay if it were to enter into a direct contract with the provider of the communication line INT, so the user of the wireless communication terminal 10 can use the communication line INT at a lower price than if he or she were to enter into a direct contract with the provider of the communication line INT.

C. Third embodiment:
6 is a sequence diagram showing an example of a process in which the wireless communication terminal 10 concludes a contract with the communication terminal 20 in the third embodiment. The contract system 100 in the third embodiment differs from the contract system 100 in the second embodiment in that the wireless communication terminal 10 determines, in the event E130, a communication terminal 20 that satisfies a predetermined condition as a sharing destination, but other configurations are the same as those in the second embodiment.

In this embodiment, the wireless communication terminal 10 detects the communication terminal 20 and another communication terminal 30 in the event E100. In the event E110, the wireless communication terminal 10 transmits a communication sharing request to all communication terminals 20 and 30 detected in the event E100. In the event E120, the communication terminals 20 and 30 also transmit information to be used in determining whether the wireless communication terminal 10 satisfies the sharing destination determination condition described below.

In this embodiment, in event E130, the wireless communication terminal 10 determines a communication terminal that satisfies a predetermined sharing destination determination condition as a sharing destination. Based on information received from the communication terminals 20 and 30, the wireless communication terminal 10 determines whether each communication terminal satisfies the sharing destination determination condition. The wireless communication terminal 10 can adopt, for example, one or more of the following sharing destination determination conditions as the sharing destination determination condition:

<Sharing destination determination condition 1>
It must be the first device you allowed.
<Sharing destination determination condition 2>
The device has the highest communication speed.
<Sharing destination determination condition 3>
The device with the strongest communication strength.
<Sharing destination determination condition 4>
It must be the device for which the most contracts have been signed in the past.
<Sharing destination determination condition 5>
It is the device with the lowest communication costs.
<Sharing destination determination condition 6>
The device with the highest rating.

The "first authorized terminal" in the above sharing destination determination condition 1 is the terminal that sent the sharing permission that was first received by the wireless communication terminal 10.

The "cost of communication" in the above sharing destination determination condition 5 is the reward that the wireless communication terminal 10 gives to the communication terminal 20. In other words, the terminal that satisfies this condition is the terminal that offers the cheapest reward.

The evaluation value in the above sharing destination determination condition 6 is an evaluation value that is assigned according to a predetermined condition. The predetermined condition is, for example, a condition that if communication was stable when a contract was previously concluded, a higher evaluation value is assigned than if communication was unstable. In addition, when communication ends, the user of the wireless communication terminal 10 may assign an evaluation value according to the level of satisfaction.

The above shared party determination conditions 1 to 6 and other conditions can also be combined as appropriate to determine the shared party determination condition. In this embodiment, the wireless communication terminal 10 employs the above shared party determination condition 5.

According to the contract system 100 of this embodiment described above, the wireless communication terminal 10 can request permission to share the communication line INT from multiple communication terminals 20. This makes it possible to make a contract for more reliable data communication.

The condition for determining the sharer is that the terminal with the lowest remuneration should be selected. Therefore, users of the wireless communication terminal 10 can use the communication line INT at a low cost.

D. Fourth embodiment:
The contract system 100 in the third embodiment differs from the contract system 100 in the second embodiment in that the communication terminal 20 automatically permits a wireless communication terminal 10 that satisfies predetermined conditions to share the communication line INT during event E120 (see Figure 5), but the other configurations are the same as those of the second embodiment.

In this embodiment, the communication terminal 20 determines whether the wireless communication terminal 10 that has requested permission to share the communication line INT in event E120 satisfies predetermined permission conditions. The communication terminal 20 determines whether the wireless communication terminal 10 satisfies the permission conditions based on information about the wireless communication terminal 10 received from the wireless communication terminal 10. If the wireless communication terminal 10 satisfies the permission conditions, the communication terminal 20 automatically permits the wireless communication terminal 10 to share the communication line INT. On the other hand, if the wireless communication terminal 10 does not satisfy the permission conditions, a screen S2 (see FIG. 4) is displayed to allow the user to select whether to grant permission. The communication terminal 20 can adopt, for example, one or more of the following conditions as the permission conditions:

<Permission Condition 1>
The number of times that a contract has been approved in the past is greater than or equal to the threshold.
<Permission Condition 2>
The scheduled date and time of use of the wireless communication terminal 10 is within a predetermined period.
<Permission Condition 3>
The planned communication volume of the wireless communication terminal 10 is equal to or less than a threshold value.
<Permission Condition 4>
The evaluation value of the wireless communication terminal 10 is equal to or greater than a threshold value.

The evaluation value in the above permission condition 4 is an evaluation value that is assigned according to a predetermined condition. The predetermined condition is, for example, a condition that, when a contract was previously concluded, if the amount of communication used was small, a higher evaluation value is assigned than if the amount of communication used was large. In addition, the user of the communication terminal 20 may assign an evaluation value at the end of communication.

Also, the above permission conditions 1 to 4 and other conditions can be appropriately combined to set the permission conditions. In this embodiment, the communication terminal 20 adopts the above permission condition 1.

According to the contract system 100 of this embodiment described above, for example, the communication terminal 20 can automatically permit sharing of the communication line INT to a wireless communication terminal 10 that has permitted sharing of the communication line INT in the past, or a wireless communication terminal 10 whose communication usage in the past is equal to or less than a predetermined communication volume. Therefore, a wireless communication terminal 10 that satisfies the permission conditions can make a contract for more reliable data communication.

E. Fifth embodiment:
7 is a diagram showing a schematic configuration of a contract system 100E in the fifth embodiment. The contract system 100E in the fifth embodiment differs from the contract system 100 in the first embodiment in that the wireless communication terminal 10 is connected to the communication line INT via a repeater 22 capable of wireless communication, but other configurations are the same as those in the first embodiment.

In this embodiment, the communication terminal 20E includes a repeater 22. The communication terminal 20E is a personal computer that is connected to the repeater 22 by wire. The repeater 22 is a router. In this embodiment, the term "communication terminal" is a concept that includes the repeater 22 that is capable of wireless communication.

When the communication terminal 20E permits the wireless communication terminal 10 to share the communication line INT, it transmits connection information for connecting to the repeater 22 to the wireless communication terminal 10. The wireless communication terminal 10 uses the received connection information to connect to the communication line INT via the repeater 22.

According to the contract system 100E of this embodiment described above, even if the communication terminal 20E is performing wired communication, the wireless communication terminal 10 can use the communication line INT via the repeater 22.

F. Other embodiments:
(F1) In the above-described embodiment, the communication terminal 20 transmits information for connection after being determined as a sharing destination to the wireless communication terminal 10. Instead, the communication terminal 20 may transmit information for connection when transmitting permission for communication sharing.

(F2) In the above-described embodiment, the wireless communication terminal 10 displays the name, radio wave strength, and available time of the communication terminal detected in the event E100 (see FIG. 2) as the screen S1. Without being limited to this, the wireless communication terminal 10 can display, for example, the reward offered by the communication terminal, the communication speed, the amount of communication available per a predetermined unit time, whether the communication line INT is connected by wire or wirelessly, and the like. It is preferable that the wireless communication terminal 10 presents at least one of the communication strength and communication speed of the multiple communication terminals detected in the event E100 and the reward offered by the communication terminal to the user of the wireless communication terminal 10, and prompts the user to select the communication terminal to be used to use the communication line INT. In this way, the user can select the communication terminal to be used to use the communication line INT using the presented information. The wireless communication terminal 10 may also display, as the screen S1, a map showing the positional relationship with the communication terminal. FIG. 8 is an example of a map M1 displayed as the screen S1. In the map M1, the position of the wireless communication terminal 10 is indicated by a cross, and the position of the detected communication terminal is indicated by a black circle. The black circle indicating the position of the communication terminal is a button b11 that allows the user to select whether or not to request permission to share the communication line INT. For example, by pressing the black circle indicating any communication terminal, information about that communication terminal is displayed.

(F3) In the above-described embodiment, when button b4 is pressed, the communication terminal 20 transmits a non-permission to share the communication line INT to the wireless communication terminal 10. Alternatively, when button b4 is pressed, the communication terminal 20 may end the process without doing anything. In this case, the wireless communication terminal 10 can determine that sharing of the communication line INT is not permitted if a permission for the reason of the communication line INT is not transmitted from the wireless communication terminal 10 for a predetermined time or more. Also, when button b4 is pressed, the communication terminal 20 may stop transmitting a message indicating that sharing of the communication line INT may be permitted.

(F4) In the above-described embodiment, the communication terminal 20 may be configured not to intentionally end the sharing of the communication line INT. This can prevent the wireless communication terminal 10 from suddenly being unable to use the communication line INT via the communication terminal 20. In addition, when the wireless communication terminal 10 grants a reward to the communication terminal 20, it can prevent the communication terminal 20 from intentionally repeatedly sharing the communication line INT for the purpose of obtaining the reward.

(F5) In the second embodiment described above, the wireless communication terminal 10 directly grants the reward to the communication terminal 20. Alternatively, the wireless communication terminal 10 may grant the reward indirectly to the communication terminal 20. For example, the wireless communication terminal 10 grants the reward to a platform developer who provides the contract system 100, and the reward minus a commission fee by the platform developer is granted to the communication terminal 20.

(F6) In the second embodiment described above, the wireless communication terminal 10 grants a reward when use of the communication line INT via the communication terminal 20 is completed. Alternatively, the wireless communication terminal 10 may grant a reward when use of the communication line INT via the communication terminal 20 is started. In this case, the wireless communication terminal 10 grants the communication terminal 20 a reward according to the planned communication volume to be used, for example, and can receive a refund of the reward from the communication terminal 20 if the actual communication volume used when use of the communication line INT is completed is less than planned.

(F7) In the third embodiment described above, the wireless communication terminal 10 acquires from the communication terminal 20 information used to determine whether the sharing destination determination condition is satisfied. Also, in the fourth embodiment described above, the communication terminal 20 acquires from the wireless communication terminal 10 information used to determine whether the permission condition is satisfied. Alternatively, the wireless communication terminal 10 or the communication terminal 20 may acquire this information from an external server.

(F8) In the third embodiment described above, the wireless communication terminal 10 determines, as the sharing destination, a communication terminal 20 that satisfies a predetermined sharing destination determination condition in event E130 (see FIG. 6). Alternatively, the wireless communication terminal 10 may automatically issue a communication sharing request to a communication terminal that satisfies the predetermined sharing destination determination condition in event E110. In this case, the wireless communication terminal 10 receives information from the surrounding communication terminals 20 in event E100 that is used to determine whether or not the sharing destination determination condition is satisfied. Also, when there are multiple communication terminals 20 that satisfy the predetermined sharing destination determination condition, the communication terminal 20 that first permits sharing of the communication line INT among the multiple communication terminals 20 that satisfy the sharing destination determination condition may be determined as the sharing destination.

(F9) In the fourth embodiment described above, if the wireless communication terminal 10 satisfies the permission conditions, the communication terminal 20 automatically permits the wireless communication terminal 10 to share the communication line INT. On the other hand, if the wireless communication terminal 10 does not satisfy the permission conditions, the communication terminal 20 allows the user to select whether or not to permit it. This is not limited to the above, and for example, if the wireless communication terminal 10 does not satisfy the permission conditions, the communication terminal 20 may not display the screen S2 and may automatically deny the wireless communication terminal 10 permission to share the communication line INT. On the other hand, if the wireless communication terminal 10 satisfies the permission conditions, the screen S2 may be displayed and the user may select whether or not to permit it.

(F10) In the fifth embodiment described above, the repeater 22 is a router. However, the repeater 22 is not limited to this, and may be a mobile router, an access point, or the like.

The present disclosure is not limited to the above-described embodiments, and can be realized in various configurations without departing from the spirit of the present disclosure. For example, the technical features in the embodiments corresponding to the technical features in each form described in the Summary of the Invention column can be replaced or combined as appropriate to solve the above-described problems or to achieve some or all of the above-described effects. Furthermore, if a technical feature is not described as essential in this specification, it can be deleted as appropriate.

10...wireless communication terminal, 11, 21...functional unit, 20, 20E...communication terminal, 22...repeater, 30...other communication terminal, 100, 100E...contract system, INT...communication line

Claims (11)

A contract system that automatically processes a contract so that a wireless communication terminal can use a communication line via the communication terminal ,
The communication terminal is connected to the communication line provided by a telecommunications carrier and transmits a message indicating that there is a possibility of allowing sharing of the communication line;
a wireless communication terminal capable of requesting permission to share the communication line from the communication terminal making the call by wireless communication ;
The communication terminal includes:
determining whether to permit sharing of the communication line of the wireless communication terminal;
when the sharing of the communication line of the wireless communication terminal is permitted, restricting the end of the sharing of the communication line of the communication terminal until the wireless communication terminal ends use of the communication line;
The wireless communication terminal uses the communication line via the communication terminal when the communication terminal is permitted to share the communication line. The contract system according to claim 1,
A contract system in which the wireless communication terminal requests permission to share the communication line from multiple communication terminals, and uses the communication line through the communication terminal that is the first of the multiple communication terminals to be granted permission to share the communication line and that satisfies predetermined conditions. A contract system according to claim 1 or 2,
When making the request, the wireless communication terminal transmits information about the wireless communication terminal to the communication terminal;
A contract system in which the communication terminal permits sharing of the communication line of the wireless communication terminal when the wireless communication terminal satisfies a predetermined condition based on the information regarding the wireless communication terminal. A contract system according to any one of claims 1 to 3,
The wireless communication terminal provides a reward to the communication terminal that permits sharing of the communication line. A contract system according to claim 4,
A contract system in which the remuneration is lower than the amount that the communication terminal pays to the telecommunications carrier for use of the communication line. A contract system according to claim 4 or claim 5,
A contract system in which the wireless communication terminal requests permission to share the communication line from multiple communication terminals, and uses the communication line via the communication terminal among the multiple communication terminals for which the remuneration is the cheapest. A contract system according to claim 4 or claim 5,
The wireless communication terminal presents to a user of the wireless communication terminal at least one of the communication strength, communication speed, and the reward of a plurality of communication terminals, and prompts the user to select a communication terminal to be used for utilizing the communication line. The contract system according to claim 1,
A contract system in which the wireless communication terminal requests permission to share the communication line from multiple communication terminals, and uses the communication line via a communication terminal among the multiple communication terminals that has the strongest communication strength. The contract system according to claim 1,
A contract system in which the wireless communication terminal requests permission to share the communication line from multiple communication terminals, and uses the communication line via a communication terminal among the multiple communication terminals that has the highest communication speed. A contract system according to any one of claims 1 to 9,
the communication terminal connects to the communication line via a repeater capable of wireless communication, and when sharing of the communication line is permitted to the wireless communication terminal, transmits connection information for wirelessly connecting to the repeater to the wireless communication terminal;
A contract system in which the wireless communication terminal wirelessly connects to the repeater using the connection information and connects to the communication line via the repeater. A computer program for causing a wireless communication terminal to use a communication line provided by a telecommunications carrier through a communication terminal connected to the communication line, the computer program comprising:
a function of transmitting to the wireless communication terminal a notification that there is a possibility of allowing sharing of the communication line;
a function of receiving, via wireless communication, a request for sharing the communication line transmitted by the wireless communication terminal;
a function of transmitting, when a decision is made to permit the sharing, the permission to the wireless communication terminal that transmitted the request via the wireless communication;
a function of causing the wireless communication terminal to utilize the communication line via the communication terminal;
a function of restricting the end of sharing of the communication line by the communication terminal until the wireless communication terminal ends use of the communication line when a decision is made to permit the sharing;
A computer program that causes the communication terminal to realize the above.

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