JP5758192B2 - Communication right lending server device and computer program - Google Patents

Description

  The present invention relates to a communication right lending server device and a computer program.

  In recent years, with the spread of mobile phone terminals and data communication cards and the development of communication infrastructure, it has become possible to use communication services regardless of location and time. In addition, as communication services that employ higher-speed, higher-capacity communication methods are realized, large-sized files can be downloaded or streamed to enjoy high-quality music and video. The number of users who use distribution services is increasing. On the other hand, even if the communication speed increases, the size of the content to be distributed also increases. Therefore, if the communication speed is increased by n times, the time required for content download is not necessarily 1 / n times. Therefore, there is a demand for downloading contents at a higher speed.

  Patent Document 1 discloses a conventional technique for realizing high-speed content download. In this prior art, a plurality of user terminals constitutes a download network, each user terminal downloads a target content for each part, and each user terminal downloads the data downloaded for each part by a short-range wireless communication such as a wireless LAN. Shared and integrated using

JP 2002-132613 A

  However, the above-described conventional technology can be applied only when a plurality of users who download the same content exist within a range where short-range wireless communication is possible. For example, for a famous artist's music or popular content, there may be multiple users who need the content within the range where short-range communication is possible, and a download network may be formed. In the case of content, there is a high possibility that there is no user who can form a download network.

  Further, in the above-described conventional technology, a server that distributes content needs to have a special function of transmitting one content to different user terminals for each part. Therefore, it cannot be applied to content download from a general content distribution server. A special mechanism is also required for handling copyright-protected content with restrictions on distribution and playback. There is also a problem of how to charge for paid content.

  Therefore, if you can borrow the “right to use communication band (communication right)” that each user has, you can temporarily expand the upper limit of the communication band that can be used by one user, so you want to download content. The user can perform high-speed download independently. Further, there is no problem even with a general content distribution server.

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a communication right lending server device and a computer program that can support lending communication right possessed by each user.

  In order to solve the above problems, a communication right lending server device according to the present invention responds to a database in which a wireless communication terminal of a communication right lender is registered and a borrowing request received from the wireless communication terminal of a communication right borrower. A control unit that selects a lender's wireless communication terminal that meets the borrowing request from the database, and the control unit indicates a communication right loan agreement between the selected lender and the borrower. Receiving an instruction to decrease the upper limit value of the communication band of the selected lender's radio communication terminal and increase the upper limit value of the communication band of the borrower's radio communication terminal to the corresponding radio base station. Features.

  In the communication right lending server device according to the present invention, the database stores position information of the lender's wireless communication terminal and position information of each wireless base station, and the control unit receives from the wireless communication terminal of the borrower. The lender's wireless communication terminal connected to the wireless base station to which the borrower's wireless communication terminal is connected is selected based on the position information, the position information of each wireless base station, and the position information of the lender's wireless communication terminal. It is characterized by that.

  In the communication right lending server device according to the present invention, the database stores information indicating a lending permission period of the lender's wireless communication terminal, and the control unit receives borrowing period information received from the borrower's wireless communication terminal. And a lender's wireless communication terminal having a lending permission period that satisfies the borrowing period is selected based on the lender's wireless communication terminal's lending permission period information.

  In the communication right lending server device according to the present invention, the control unit responds to a communication right return request received from the selected lender's wireless communication terminal, even within the lending permission period, even if the selected lender An instruction to return the upper limit value of the communication band of the radio communication terminal and the upper limit value of the communication band of the borrower's radio communication terminal is transmitted to the corresponding radio base station.

  In the communication right lending server device according to the present invention, the database stores information on a bandwidth upper limit value per terminal in the wireless base station, and the control unit receives information on necessary bandwidth received from the wireless communication terminal of the borrower. And a plurality of lenders 'wireless communication terminals are selected when a plurality of lenders' wireless communication terminals are required for the required bandwidth, based on the information on the band upper limit value per terminal.

  In the communication right lending server device according to the present invention, the control unit selects at least a number of lender wireless communication terminals that satisfy the required bandwidth.

  In the communication right lending server device according to the present invention, the control unit, based on the borrowing period information received from the borrower's wireless communication terminal, when the borrowing period ends, the selected lender's wireless communication terminal An instruction to restore the upper limit value of the communication band and the upper limit value of the communication band of the borrower's radio communication terminal is transmitted to the corresponding radio base station.

  In the communication right lending server device according to the present invention, the database stores information indicating a ratio of lending by the lender's wireless communication terminal, and the control unit is configured to store the selected lender's wireless communication terminal at the ratio. The radio base station is instructed to decrease the upper limit value of the communication band and increase the upper limit value of the communication band of the borrower's radio communication terminal.

  In the communication right lending server device according to the present invention, the control unit introduces the selected lender's wireless communication terminal to the borrower's wireless communication terminal, and from the borrower's wireless communication terminal, the selected lender Receiving a notification indicating an agreement on lending and borrowing communication rights.

  In the communication right lending server device according to the present invention, the control unit transmits a negotiation message asking for an agreement on lending communication right with the borrower to the selected lender's wireless communication terminal, and the response message. It is characterized by receiving.

According to the computer program of the present invention, a wireless communication terminal of a lender who meets the borrowing request from a database in which the wireless communication terminal of the borrower of communication right is registered in response to the borrowing request received from the wireless communication terminal of the borrower of communication right And a notification indicating an agreement on lending communication rights between the selected lender and the borrower, the upper limit value of the communication bandwidth of the selected lender's wireless communication terminal is reduced and the borrower And a step of transmitting an instruction to increase the upper limit value of the communication band of the wireless communication terminal to the corresponding wireless base station.
As a result, the aforementioned communication right lending server device can be realized using a computer.

  According to the present invention, it is possible to support borrowing of communication rights possessed by each user. As a result, the upper limit value of the communication band that can be used by one user can be temporarily expanded, so that a user who wants to download content can perform high-speed download independently. Further, there is no problem even with a general content distribution server.

1 is a schematic configuration diagram of a communication right lending system according to an embodiment of the present invention. It is a block diagram of the communication right loan server apparatus 1 shown in FIG. It is a structural example of the database 13 shown in FIG. It is a sequence chart which shows the flow of the communication right loan process which concerns on one Embodiment of this invention. It is a structural example of the loan permission message 100 which concerns on one Embodiment of this invention. It is a structural example of the borrowing request message 200 which concerns on one Embodiment of this invention. It is a sequence chart which shows the flow of the communication right loan process which concerns on other embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic configuration diagram of a communication right lending system according to an embodiment of the present invention. In FIG. 1, a communication right lending server device 1 can send and receive data to and from the user's wireless communication terminals 2 and 3 via a communication line. Further, the communication right lending server device 1 can send and receive data to and from the devices on the network side (wireless base station 4, communication relay device 5, Web server 6) via a communication line.

  The wireless communication terminals 2 and 3 belong to a wireless communication system having a wireless base station 4. The wireless communication terminals 2 and 3 can connect to the wireless base station 4 and transmit / receive data. For each wireless communication terminal 2, 3, an upper limit value of a communication band that can be used via the wireless base station 4 is determined. In the present embodiment, the upper limit value of the communication band for one wireless communication terminal can be temporarily expanded by borrowing communication rights between users.

  Hereinafter, for convenience of explanation, the wireless communication terminal of the user who borrows the communication right is referred to as a borrower 2, and the wireless communication terminal of the user who borrows the communication right is referred to as a lender 3. When there are a plurality of lenders 3, the Nth lender 3 is referred to as a lender # N_3. However, N is a natural number.

  FIG. 2 is a configuration diagram of the communication right lending server device 1 shown in FIG. In FIG. 2, the communication right lending server device 1 includes a communication unit 11, a control unit 12, and a database 13. The communication unit 11 transmits / receives data to / from the borrower 2, the lender 3, the wireless base station 4, the communication relay device 5, and the Web server 6 via the communication line. The control unit 12 performs control related to the communication right lending service. The database 13 stores data related to the communication right lending service.

  FIG. 3 is a configuration example of the database 13 shown in FIG. In FIG. 3, the database 13 has a lending permission terminal list and a base station list. The lending permission terminal list includes information on wireless communication terminals (lenders 3) permitted to lend communication rights. The base station list includes information on the radio base station 4 that is the target of the communication right lending service.

  Next, the operation of the communication right lending system according to the present embodiment will be described with reference to FIG. FIG. 4 is a sequence chart showing the flow of the communication right lending process according to the present embodiment.

(Step S1) The lender 3 transmits a lending permission message to the communication right lending server device 1. FIG. 5 is a configuration example of the lending permission message 100. The lending permission message 100 includes an identifier (terminal ID) of the lender 3, information indicating the position of the lender 3, information indicating the date and time when the lending of the communication right is started, and information indicating the date and time when the lending of the communication right is ended. Have

  In the communication right lending server device 1, the control unit 12 writes the information in the loan permission message 100 received by the communication unit 11 into the loan permission terminal list in the database 13.

  As a method for transmitting the lending permission message, for example, there is a method of transmitting to the communication right lending server device 1 as electronic data by e-mail or a Web browser. Note that the user of the lender 3 may send a lending permission message in writing to the operator of the communication right lending server device 1 so that the operator registers the contents of the writing in the database 13.

(Step S <b> 2) The borrower 2 transmits a borrowing request message to the communication right lending server device 1. FIG. 6 shows a configuration example of the borrowing request message 200. The borrowing request message 200 indicates information on the communication band required by the borrower 2, information indicating the position of the borrower 2, information indicating the date and time when the borrowing of the communication right is started, and date and time when the borrowing of the communication right is ended. Information.

(Step S3) In the communication right lending server device 1, the control unit 12 meets the request of the borrower 2 from the lending permission terminal list in the database 13 based on the information in the borrowing request message 200 received by the communication unit 11. Lender 3 is selected. And the control part 12 transmits the negotiation right notification message which described the terminal ID of the lender 3 which is a selection result to the borrower 2 by the communication part 11.

  Here, the selection method of the lender 3 is demonstrated. First, based on the position information in the borrowing request message 200 and the position information of the base station list in the database 13, the radio base station 4 (hereinafter referred to as a connected base station 4) to which the borrower 2 is connected is determined. Next, based on the position information of the connected base station 4 and the position information of the lending permitted terminal list, the lender 3 that is connected to the connected base station 4 and for which the loaned flag is not set is extracted. Next, the lender 3 that satisfies the borrowing period of the borrower 2 is extracted from the extracted lender 3 based on the lending start date and lending end date and time of the lender 3 and the borrowing start date and time and borrowing end date and time of the borrower 2. . This extracted lender 3 is the selection result.

  Note that, when a plurality of lenders 3 are required for the necessary bandwidth of the borrower 2 based on the bandwidth upper limit value per terminal of the connected base station 4 and the necessary bandwidth of the borrower 2, the plurality of lenders 3 are selected. If possible, a plurality of lenders 3 are included in the selection result, and if possible, the number of lenders 3 that satisfies at least the necessary bandwidth of the borrower 2 is included in the selection result.

(Step S4) The borrower 2 transmits a negotiation message to the lender 3 of the terminal ID in the negotiation right notification message received from the communication right loan server device 1. The negotiating message is for obtaining permission to borrow communication rights. The user of the lender 3 refers to the received negotiation message, returns an acceptance message to the borrower 2 when accepting the borrowing of the communication right, and sends a non-approval message to the borrower 2 when not accepting the borrowing of the communication right. Send back.

  The lender 3 automatically borrows a consent message for a negotiation message received within its own lending permission period, and a non-acknowledgment message for a negotiation message received outside its lending permission period. You may make it reply to 2.

(Step S <b> 5) The borrower 2 transmits a negotiation completion notification message describing the terminal ID of the lender 3 who has transmitted the received consent message and the terminal ID of the self (borrower 2) to the communication right lending server device 1. In the communication right lending server device 1, the control unit 12 adds the terminal ID lender 3 in the negotiation completion notification message received by the communication unit 11 to the loaned flag column of the loan permitted terminal list in the database 13. The terminal ID of the borrower 2 in the negotiation completion notification message is written. Thereby, the loaned flag of the lender 3 is set.

(Step S6) In the communication right lending server device 1, the control unit 12 sends to the connecting base station 4 a bandwidth upper limit value change instruction message describing the terminal ID of the borrower 2 and the terminal ID of the lender 3 in the negotiation completion notification message. (Communication start of lending communication right) is transmitted by the communication unit 11. The connecting base station 4 decreases the upper limit value of the communication band with respect to the terminal ID of the lender 3 in the received band upper limit value change instruction message, and at the same time with respect to the terminal ID of the borrower 2 in the band upper limit value change instruction message. Increase the upper limit of the communication bandwidth. The amount of reduction in the communication band for the lender 3 is determined in advance. The increase amount of the communication band for the borrower 2 is the sum of the decrease amount of the communication band for the lender 3. The connecting base station 4 notifies the communication right lending server device 1 of the upper limit value of the communication band after the change of the borrower 2.

(Step S7) In the communication right lending server apparatus 1, the control unit 12 sends a bandwidth upper limit change instruction message (communication right borrowing start) describing the upper limit value of the communication bandwidth after the change to the borrower 2. Send by. Thereby, the borrower 2 can increase the communication speed based on the upper limit value of the changed communication band in the received band upper limit value change instruction message.

(Step S8) After the desired communication processing is completed, the borrower 2 transmits a communication right return message describing its own (borrower 2) terminal ID to the communication right lending server device 1 (not shown). In the communication right lending server device 1, the control unit 12 uses the terminal ID of the borrower 2 in the communication right return message received by the communication unit 11 as a search key, and sets the loaned flag in the loan permitted terminal list in the database 13. The terminal ID of the lender 3 whose terminal ID of the borrower 2 is set in the loaned flag is extracted. Then, the control unit 12 transmits, to the connecting base station 4, the communication unit 11 transmits a bandwidth upper limit value change instruction message (communication right lending end) describing the extracted terminal ID of the lender 3 and the terminal ID of the borrower 2. . As a result, the connecting base station 4 restores the upper limit value of the communication band to the terminal ID of the lender 3 and the terminal ID of the borrower 2 in the received band upper limit value change instruction message. Further, in the communication right lending server device 1, the control unit 12 determines the terminal of the borrower 2 from the lending flag column of the lender 3 in which the terminal ID of the borrower 2 is set in the lending permitted terminal list in the database 13. Delete the ID. Thereby, the loaned flag of the lender 3 is thereby unset.

(Step S <b> 9) In the communication right lending server device 1, the control unit 12 transmits a bandwidth upper limit change instruction message (communication end of borrowing of communication right) to the borrower 2 by the communication unit 11. Thereby, the borrower 2 adjusts the communication speed based on the upper limit value of the original communication band before the change.

  In step S6, the communication right lending server device 1 transmits a bandwidth upper limit change instruction message (communication right lending start) to the communication relay device 5 and the Web server 6 as necessary. As a result, the communication relay device 5 and the Web server 6 reduce the upper limit value of the communication band with respect to the terminal ID of the lender 3 in the received band upper limit value change instruction message, and at the same time, The upper limit value of the communication band is increased for the terminal ID of the borrower 2. In this case, the communication right lending server device 1 transmits a bandwidth upper limit change instruction message (communication right loan end) to the communication relay device 5 and the Web server 6 in step S8. Thereby, the communication relay device 5 and the Web server 6 restore the upper limit value of the communication band to the terminal ID of the lender 3 and the terminal ID of the borrower 2 in the received band upper limit value change instruction message.

  As described above, according to the present embodiment, it is possible to support borrowing of communication rights possessed by each user. As a result, the upper limit value of the communication band that can be used by one user can be temporarily expanded, so that a user who wants to download content can perform high-speed download independently. Further, there is no problem even with a general content distribution server.

  Note that the communication right lending server device 1 manages the borrowing period of the borrower 2, and when the borrowing period of the borrower 2 ends, step S8 (communication right lending end process) and step S9 (communication right borrowing end process) are performed. You may do it.

  Further, the lender 3 may be able to request the return of the communication right within the lending permission period. When receiving the communication right return request message from the lender 3, the communication right lending server device 1 promptly performs step S8 (communication right lending end process) and step S9 (communication right borrowing end process). Thus, consideration can be given so as not to give a disadvantage to the communication request of the lender 3.

  In addition, the lender 3 may be allowed to specify the rate at which the communication right is lent. In this case, the communication right lending server device 1 describes the ratio designated by the lender 3 in the lending permitted terminal list in the database 13 and decreases the communication band upper limit value of the lender 3 by the ratio to thereby reduce the communication band of the borrower 2. The wireless base station 4 is instructed to increase the upper limit value.

  In the present embodiment, the lease of communication rights is realized by changing the upper limit value of the communication bandwidth of the lender 3 and the borrower 2. In a wireless communication system such as 1xEV-DO, time division multiplex slots are assigned to wireless communication terminals by, for example, a proportional fairness method based on radio wave reception quality at each wireless communication terminal subordinate to the wireless base station. In the proportional fairness method, when there is only one wireless communication terminal under the wireless base station, one wireless communication terminal can occupy all slots (maximize the upper limit of the communication bandwidth). As the number of wireless communication terminals existing in the network increases, the number of slots (communication bandwidth upper limit value) that can be allocated to one wireless communication terminal decreases. Therefore, in the present embodiment, the number of slots that can be allocated to the borrower 2 (the upper limit value of the communication bandwidth) is increased by assigning the slots allocated to the lender 3 to the borrower 2, and the communication speed of the borrower 2 is increased. Can do.

As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the specific structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.
For example, the step (S4 in FIG. 4) for obtaining the approval of borrowing communication right from the lender 3 may be performed by the communication right lending server device 1 as shown in step S4a in FIG. In FIG. 7, in step S <b> 4 a, the communication right lending server device 1 transmits a negotiation message to the lender 3. The lender 3 returns an acceptance message to the communication right borrowing server device 1 when accepting the borrowing of the communication right, and returns an unsolicited message to the communication right borrowing server device 1 when not accepting the borrowing of the communication right. . It is assumed that the communication right lending server device 1 lends a communication right to the lender 3 who has transmitted the received consent message.

Further, a program for realizing each step shown in FIG. 4 or FIG. 7 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed, whereby communication is performed. You may perform loan processing. Here, the “computer system” may include an OS and hardware such as peripheral devices.
Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
“Computer-readable recording medium” refers to a flexible disk, a magneto-optical disk, a ROM, a writable nonvolatile memory such as a flash memory, a portable medium such as a DVD (Digital Versatile Disk), and a built-in computer system. A storage device such as a hard disk.

Further, the “computer-readable recording medium” means a volatile memory (for example, DRAM (Dynamic DRAM) in a computer system that becomes a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line. Random Access Memory)), etc., which hold programs for a certain period of time.
The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.
The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

DESCRIPTION OF SYMBOLS 1 ... Communication right lending server apparatus, 2 ... Wireless communication terminal (borrower), 3 ... Wireless communication terminal (lender), 4 ... Wireless base station, 5 ... Communication relay apparatus, 6 ... Web server, 11 ... Communication part, 12 ... Control unit, 13 ... database

Claims (11)

A database of registered wireless communication terminals of communication rights lenders;
In accordance with a borrowing request received from a wireless communication terminal of a borrower of communication rights, a control unit that selects a wireless communication terminal of a lender that matches the borrowing request from the database, and
The control unit, upon receiving a notification indicating an agreement on lending communication rights between the selected lender and the borrower, reduces the upper limit value of the communication bandwidth of the selected lender's wireless communication terminal and the borrower A communication right lending server device that transmits an instruction to increase the upper limit value of a communication band of a wireless communication terminal to a corresponding wireless base station ,
The database stores the position information of the lender's wireless communication terminal and the position information of each wireless base station,
The control unit is configured to connect the wireless communication terminal to which the borrower wireless communication terminal is connected based on the positional information received from the wireless communication terminal of the borrower, the positional information of each wireless base station, and the positional information of the wireless communication terminal of the lessor. Select the lender's wireless communication terminal to connect to the base station,
A communication right lending server device characterized by that. The database stores information indicating a lending permission period of the lender's wireless communication terminal,
The control unit, based on the borrowing period information received from the borrower wireless communication terminal and the lending permission period information of the lender's wireless communication terminal, the lender wireless communication of the lending permission period that satisfies the borrowing period Select a device,
The communication right lending server device according to claim 1. In response to the communication right return request received from the selected lender's wireless communication terminal, the control unit and the upper limit value of the communication bandwidth of the selected lender's wireless communication terminal, even within the lending permission period Send an instruction to restore the upper limit of the communication bandwidth of the borrower's wireless communication terminal to the corresponding wireless base station,
The communication right lending server device according to any one of claims 1 and 2 . The database stores information on a bandwidth upper limit value per terminal in the wireless base station,
When the required bandwidth is received from the borrower's wireless communication terminal and the bandwidth upper limit information per terminal, the control unit requires a plurality of lenders' wireless communication terminals for the required bandwidth. Select multiple lenders' wireless communication terminals,
The communication right lending server device according to any one of claims 1 to 3 , wherein The controller selects at least a lender's wireless communication terminals sufficient to satisfy the required bandwidth;
The communication right lending server device according to claim 4 . The control unit, based on the borrowing period information received from the borrower's wireless communication terminal, when the borrowing period ends, the upper limit value of the communication bandwidth of the selected lender's wireless communication terminal and the borrower's wireless communication Send an instruction to restore the upper limit of the communication bandwidth of the terminal to the corresponding radio base station,
The communication right lending server device according to any one of claims 1 to 5 , wherein: A database of registered wireless communication terminals of communication rights lenders;
In accordance with a borrowing request received from a wireless communication terminal of a borrower of communication rights, a control unit that selects a wireless communication terminal of a lender that matches the borrowing request from the database, and
The control unit, upon receiving a notification indicating an agreement on lending communication rights between the selected lender and the borrower, reduces the upper limit value of the communication bandwidth of the selected lender's wireless communication terminal and the borrower A communication right lending server device that transmits an instruction to increase the upper limit value of a communication band of a wireless communication terminal to a corresponding wireless base station,
The database stores information indicating a “ ratio of lending communication right” designated from the wireless communication terminal of the lender,
The control unit reduces the upper limit value of the communication bandwidth of the selected lessee's wireless communication terminal and increases the upper limit value of the communication bandwidth of the borrower's wireless communication terminal to the corresponding radio base station by the ratio. Instruct,
A communication right lending server device characterized by that. The control unit introduces the selected lender's wireless communication terminal to the borrower's wireless communication terminal, and indicates an agreement of lending communication rights between the borrower's wireless communication terminal and the selected lender. Receive notifications,
The communication right lending server device according to any one of claims 1 to 7 , characterized in that: The control unit transmits a negotiation message asking for an agreement on borrowing communication rights with the borrower to the selected lender's wireless communication terminal, and receives the response message.
The communication right lending server device according to any one of claims 1 to 7 , characterized in that: A first step of selecting a lender's wireless communication terminal that meets the borrowing request from a database in which the wireless communication terminal of the communication right lender is registered in response to the borrowing request received from the wireless communication terminal of the communication right borrower; ,
Upon receiving a notification indicating an agreement on lending communication rights between the selected lender and the borrower, the upper limit value of the communication bandwidth of the selected lender's wireless communication terminal is reduced and communication of the borrower's wireless communication terminal is performed. A computer program for causing a computer to execute a second step of transmitting an instruction to increase an upper limit value of a band to a corresponding radio base station ;
The database stores the position information of the lender's wireless communication terminal and the position information of each wireless base station,
In the first step, the borrower's wireless communication terminal is connected based on the position information received from the borrower's wireless communication terminal, the position information of each wireless base station, and the position information of the lender's wireless communication terminal. Select the lender's wireless communication terminal to connect to the wireless base station
A computer program characterized by the above. A first step of selecting a lender's wireless communication terminal that meets the borrowing request from a database in which the wireless communication terminal of the communication right lender is registered in response to the borrowing request received from the wireless communication terminal of the communication right borrower; ,
Upon receiving a notification indicating an agreement on lending communication rights between the selected lender and the borrower, the upper limit value of the communication bandwidth of the selected lender's wireless communication terminal is reduced and communication of the borrower's wireless communication terminal is performed. A computer program for causing a computer to execute a second step of transmitting an instruction to increase an upper limit value of a band to a corresponding radio base station;
The database stores information indicating a “ratio of lending communication right” designated from the wireless communication terminal of the lender,
In the second step, the wireless base station is configured to decrease the upper limit value of the communication bandwidth of the selected lessee's wireless communication terminal and increase the upper limit value of the communication bandwidth of the borrower's wireless communication terminal by the ratio. Instruct the station,
A computer program characterized by the above.

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