JP2017139750A - Communication control method, program and information processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a communication amount between an information processing device and mobile terminals, if mutual mobile terminals do not exist in a region capable of short-range communication.SOLUTION: A receiver unit (11) receives, through first communication, a data transmission request and position information of a mobile terminal which performs data transmission request from each of a plurality of mobile terminals which can execute a plurality sets of different communication, including first communication and second communication communicable in a predetermined area. A control unit (12) holds request data requested in the data transmission request, to control to select, as a selective mobile terminal, a mobile terminal estimated to be existent in an area in which the second communication can be made with the requesting mobile terminal which transmits the data transmission request. A transmitter unit (13) transmits a transmission instruction, which instructs to transmit request data by second communication from the selected selective mobile terminal to the requesting mobile terminal, either directly or through a relay to the selective mobile terminal by the first communication.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a communication control method, a program, and an information processing apparatus.

  There are coordinating terminals that improve the communication quality and communication efficiency of a plurality of wireless terminals that form an ad hoc network, which is a kind of short-range communication. Any of the plurality of wireless terminals transmits terminal information, cooperative reception request signal and desired reception signal information to the adjustment terminal, and the adjustment terminal transmits the cooperative reception request signal and the desired reception signal information to other wireless terminals in the ad hoc network. Send. The coordinating terminal transmits a shared signal indicating the shared share of each of the other wireless terminals to each of the other wireless terminals. Each of the wireless terminals that have received the sharing signal individually receives the shared information from the base station, and transmits the received information to the wireless terminal that desires the information.

JP 2010-220050 A JP 2004-180018 A

  However, when the adjusting terminal is used, the base station transmits information to the wireless terminal that has received the shared signal instead of transmitting information to the wireless terminal that desires the information. The communication volume is not reduced as a whole.

  In addition, there exists a system that reduces the load on a broadcasting center that transmits content data of satellite radio broadcasting and acquires content data in a short time. A data acquisition device mounted on a vehicle acquires content data from a broadcast center via an artificial satellite. On the other hand, the data acquisition device can also acquire content data from the data acquisition device of another vehicle not by the broadcast center but by vehicle-to-vehicle communication, which is a kind of short-range communication. The data acquisition device searches for a vehicle that exists in an area where vehicle-to-vehicle communication can be performed, and when the searched vehicle owns the desired content data, the content acquisition device acquires the content data from the searched vehicle data acquisition device. To do.

  However, in the system for acquiring the content data, if the cooperative vehicle that owns the content data does not exist in a region where inter-vehicle communication with the requesting vehicle that desires to receive the content data exists, the requesting vehicle is the cooperative vehicle. Can not be found. That is, if the cooperative mobile terminal is not in an area where short-range communication is possible with the requesting mobile terminal, the requesting mobile terminal cannot acquire request data from the cooperative mobile terminal.

  According to one aspect of the present invention, it is possible to reduce the amount of communication between an information processing device and a mobile terminal even when the mobile terminals do not exist within an area where short-range communication is possible. With the goal.

  In one aspect, the data transmission request and the location information of the mobile terminal that has made the data transmission request are received from each of the plurality of mobile terminals by either the first communication or the second communication. Each of the plurality of mobile terminals is capable of executing a plurality of different communications including a first communication and a second communication capable of communication within a predetermined area. In the area where the second communication can be performed with the requesting mobile terminal that has at least one of the request data requested by the data transmission request and the convertible data that can be converted into the request data, and has transmitted the data transmission request. Is selected as the selected mobile terminal. The selected mobile terminal is selected based on the received data transmission request, the location management information in which the received location information is stored, and the data management information in which information indicating the data held by the mobile terminal is registered. The selected mobile terminal transmits a request to transmit the request data and one of the convertible data to the requesting mobile terminal from the selected selected mobile terminal by the second communication, either by the first communication or the second communication. Send directly to or relay to.

  As one aspect, the present invention makes it possible to reduce the amount of communication between an information processing device and a mobile terminal even when the mobile terminals do not exist within an area where short-range communication is possible.

It is a block diagram which shows an example of the principal part function of the server which concerns on 1st-5th embodiment. It is a block diagram which shows an example of the principal part function of the mobile terminal which concerns on 1st-5th embodiment. It is a block diagram which shows an example of a hardware structure of the server which concerns on 1st-5th embodiment. It is a block diagram which shows an example of a hardware structure of the mobile terminal which concerns on 1st-5th embodiment. It is a conceptual diagram which shows an example of the position management table which concerns on 1st-5th embodiment. It is a conceptual diagram which shows an example of the data management table which concerns on 1st-5th embodiment. It is a conceptual diagram explaining the outline | summary of the communication control process which concerns on 1st Embodiment. It is a flowchart which shows an example of the flow of the communication control process which concerns on 1st Embodiment. It is a conceptual diagram explaining the relationship between a communication speed, time, and communication amount. It is a conceptual diagram explaining the outline | summary of the communication control process which concerns on 2nd Embodiment. It is a flowchart which shows an example of the flow of the communication control process which concerns on 2nd Embodiment. It is a conceptual diagram explaining the outline | summary of the communication control process which concerns on 3rd Embodiment. It is a flowchart which shows an example of the flow of the communication control process which concerns on 3rd Embodiment. It is a conceptual diagram explaining the relationship between a communication speed, time, and communication amount. It is a conceptual diagram explaining the relationship between a communication speed, time, and communication amount. It is a conceptual diagram explaining the outline | summary of the communication control process which concerns on 4th Embodiment. It is a flowchart which shows an example of the flow of the communication control process which concerns on 4th Embodiment. It is a conceptual diagram explaining the relationship between communication completion expected time and communication completion estimated time. It is a conceptual diagram explaining the outline | summary of the communication control process which concerns on 5th Embodiment. It is a flowchart which shows an example of the flow of the communication control process which concerns on 5th Embodiment. It is a conceptual diagram which shows an example of the table which concerns on 6th Embodiment. It is a conceptual diagram which shows an example of the table which concerns on 6th Embodiment. It is a conceptual diagram which shows an example of the table which concerns on 6th Embodiment. It is a conceptual diagram which shows an example of the table which concerns on 6th Embodiment. It is a conceptual diagram explaining the outline | summary of the communication control process which concerns on 6th Embodiment. It is a flowchart which shows an example of the flow of the communication control process which concerns on 6th Embodiment. It is a flowchart which shows an example of the flow of the communication control process which concerns on 6th Embodiment. It is a conceptual diagram explaining the relationship between a communication speed, time, and communication amount. It is a conceptual diagram explaining the relationship between a communication speed, time, and communication amount. It is a conceptual diagram explaining the relationship between a communication speed, time, and communication amount.

[First Embodiment]
Hereinafter, a first embodiment, which is an example of an embodiment, will be described in detail with reference to the drawings.

  A server 10 that is an example of the information processing apparatus illustrated in FIG. 1A includes a reception unit 11, a control unit 12, and a transmission unit 13. The receiving unit 11 receives the data transmission request and the location information of the mobile terminal that has made the data transmission request from each of the plurality of mobile terminals by either the first communication or the second communication. Each of the plurality of mobile terminals is capable of executing a plurality of different communications including a first communication and a second communication capable of communication within a predetermined area. The control unit 12 possesses the request data requested by the data transmission request, and selects a mobile terminal that is predicted to exist in an area where the second communication can be performed with the requesting mobile terminal that has transmitted the data transmission request. Control to select as a selected mobile terminal. The selection is controlled based on the data transmission request received by the receiving unit 11, the location management information in which the received location information is stored, and the data management information in which information indicating data held by the mobile terminal is registered. The transmission unit 13 sends a transmission instruction to the selected mobile terminal directly or directly to the selected mobile terminal through either the first communication or the second communication to instruct the requesting mobile terminal to transmit the request data by the second communication. Relay and send.

  An example of the first communication is mobile phone communication, and an example of the second communication is ad hoc communication. The ad hoc communication is short-range wireless communication such as Bluetooth (registered trademark), IrDA (Infrared Data Association), and WiFi. The server 10 may be, for example, a workstation, a desktop computer, or a notebook computer, but this embodiment is not limited to these.

  A mobile terminal 20A illustrated in FIG. 1B includes a reception unit 21A, a control unit 22A, and a transmission unit 23A. The reception unit 21A and the transmission unit 23A perform communication when the control unit 22A transmits and receives data by mobile phone communication and ad hoc communication.

  Since the configuration of the mobile terminal 20A and the mobile terminals 20B to 20F described later are the same, the description of the configurations of the mobile terminals 20B to 20F is omitted. In addition, it replaces with A and attaches BF to the referential mark of each component of the mobile terminals 20B-20F. The same applies to FIG. 2B described later. Hereinafter, when it is not necessary to distinguish which mobile terminal, the mobile terminals 20A to 20F are also referred to as mobile terminals 20. In this case, A to F are not added to the reference numerals of the constituent elements. In the following description, the mobile terminals 20A to 20F are described as an example. However, in the present embodiment, the number of mobile terminals 20 is not limited. The mobile terminal 20 may be, for example, a mobile phone, a smartphone, or a tablet computer. However, in the present embodiment, the mobile terminal 20 is not limited to these.

  As illustrated in FIG. 2A, the server 10 includes a CPU (Central Processing Unit) 31, which is an example of a processor, a primary storage unit 32, a secondary storage unit 33, a communication unit 39, and an external interface 41. The CPU 31, the primary storage unit 32, the secondary storage unit 33, the communication unit 39 and the external interface 41 are connected to each other via a bus 49.

  The primary storage unit 32 is, for example, a volatile memory such as a RAM (Random Access Memory). The secondary storage unit 33 is a non-volatile memory such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive).

  The secondary storage unit 33 includes a program storage area 34 that stores a communication control program, a position management information storage area 35 that stores position management information, a data management information storage area 36 that stores data management information, and data 38A to data 38Z. A stored data storage area 37 is included. Hereinafter, when it is not necessary to distinguish which data, the data 38A to data 38Z are also referred to as data 38. In the present embodiment, the number of data 38 is not limited.

  FIG. 3A illustrates a location management table 35A that is an example of location management information. The position management table 35A is a table in which the latitude and longitude of the position of the mobile terminal 20 are recorded in association with time. For example, the position of the mobile terminal 20A at 1 pm (13:00) is latitude 35.583 and longitude 139.640. In this example, location information for each minute of the mobile terminal 20 is registered in the location management table 35A.

  FIG. 3B illustrates a data management table 36A that is an example of data management information. The data management table 36A is a table in which the mobile terminals 20 possessing each of the data 38 are registered. For example, the data 38A is possessed by the mobile terminal 20B, and the data 38B is possessed by the mobile terminal 20C and the mobile terminal 20D. The data 38 may be possessed by each of the mobile terminals 20 by being transmitted from the server 10 to each of the mobile terminals 20 by requesting the transmission of each of the mobile terminals 20. Further, the data 38 may be transmitted to the other mobile terminals 20 from the server 10 and further transmitted from the other mobile terminals 20 to each of the mobile terminals 20, so that each of the mobile terminals 20 may possess the data 38.

  The location management information storage area 35, the data management information storage area 36, and the data storage area 37 may be included in the external device instead of the server 10. In this case, the CPU 31 can acquire the position management information, the data management information, and the data 38 via the communication unit 39, for example.

  The CPU 31 reads the communication control program from the program storage area 34 of the secondary storage unit 33 and develops it in the primary storage unit 32. The CPU 31 operates as the control unit 12 in FIG. 1A by executing the communication control program. Note that the communication control program may be stored in an external server and expanded in the primary storage unit 32 via a network. The communication control program may be stored in a non-temporary recording medium such as a DVD (Digital Versatile Disc), read via a recording medium reading device, and expanded in the primary storage unit 32.

  A communication unit 39 as an example of the reception unit 11 and the transmission unit 13 in FIG. An external device is connected to the external interface 41, and the external interface 41 controls transmission / reception of various information between the external device and the CPU 31.

  As an example, as shown in FIG. 2B, the mobile terminal 20A includes a CPU 51A, a primary storage unit 52A, a secondary storage unit 53A, a long-range communication unit 58A, a short-range communication unit 61A, a GPS (Global Positioning System) 62A, and an external interface. 63A included. The CPU 51A, the primary storage unit 52A, the secondary storage unit 53A, the long-range communication unit 58A, the short-range communication unit 61A, the GPS 62A, and the external interface 63A are connected to each other via a bus 69A.

  The primary storage unit 52A is, for example, a volatile memory such as a RAM. The secondary storage unit 53A is, for example, a nonvolatile memory such as an HDD or an SSD. The secondary storage unit 53A includes a program storage area 54A that stores a communication control program and a data storage area 55A that stores data.

  The CPU 51A reads the communication control program from the program storage area 54A of the secondary storage unit 53A and develops it in the primary storage unit 52A. The CPU 51A operates as the control unit 22A in FIG. 1B by executing the communication control program. Note that the communication control program may be stored in an external server and expanded in the primary storage unit 52A via a network. Further, the communication control program may be stored in a non-temporary recording medium such as a DVD, read through a recording medium reading device, and expanded in the primary storage unit 52A.

  The long-distance communication unit 58A performs long-distance (wide range) communication by mobile phone communication, and the short-range communication unit 61A performs communication by short-range communication such as ad hoc communication. The long-range communication unit 58A and the short-range communication unit 61A are examples of the reception unit 21A and the transmission unit 23A in FIG. 1B. The GPS 62A acquires position information indicating the position of the mobile terminal 20A. An external device is connected to the external interface 63A, and the external interface 63A controls transmission / reception of various information between the external device and the CPU 51A.

  Next, an outline of operations of the server 10, the mobile terminal 20A, and the mobile terminal 20B, which are examples of the communication control system, will be described. In the present embodiment, as illustrated in FIG. 4, the mobile terminal 20 </ b> A (hereinafter also referred to as the first mobile terminal 20 </ b> A) that is an example of the requesting mobile terminal is any one of the data 38 </ b> A to 38 </ b> Z possessed by the server 10. Is requested to transmit the data 50B. Data 50B is an example of request data. Here, there are a large number of mobile terminals 20 around the first mobile terminal 20A. When a large number of mobile terminals 20 request to send data 50B to the server 10 at the same time or within a short period of time, the load on the network increases. Therefore, the data 50B is transmitted from the mobile terminal 20 that already has the data 50B, not the server 10, to the first mobile terminal 20A.

  In the present embodiment, as shown by a solid line (1), the first mobile terminal 20A transmits request information 50A, which is an example of a data transmission request for requesting transmission of data 50B, to the server 10 by mobile phone communication. The server 10 that has received the request information 50A, as indicated by the alternate long and short dash line (2), based on the location management table 35A and the data management table 36A, the mobile terminal 20B (hereinafter referred to as the second mobile terminal) that is an example of the selected mobile terminal 20B).

  As indicated by a solid line (3), the server 10 transmits response information 50C instructing the first mobile terminal 20A to transmit the data 50B from the second mobile terminal 20B to the first mobile terminal 20A. The response information 50C is an example of a transmission instruction. As indicated by a broken line (4), when the second mobile terminal 20B moves to an area where ad hoc communication is possible with the first mobile terminal 20A, as indicated by a solid line (5), the second mobile terminal 20B Data 50B is transmitted to the first mobile terminal 20A by ad hoc communication.

  Specifically, as illustrated in FIG. 5, the CPU 51 </ b> A of the first mobile terminal 20 </ b> A transmits the request information 50 </ b> A and the position information of the first mobile terminal 20 </ b> A to the server 10 by mobile phone communication in Step 110. In step 120, the CPU 31 of the server 10 determines whether the request information 50A and the position information have been received. CPU31 repeats the process of step 120 until determination is affirmed.

  Note that transmission / reception of information such as the request information 50A and the data 50B may be started when the transmission side makes a reception request to the reception side, or may be started when the reception side makes a transmission request to the transmission side. The same applies to transmission / reception of information in the following description. For example, when the transmission of the data 50B is started when the second mobile terminal 20B that is the transmission side makes a reception request to the first mobile terminal 20A that is the reception side, the server 10 sends the response information 50C to the second mobile terminal 20A. It transmits to the terminal 20B. That is, the server 10 transmits the response information 50C to the second mobile terminal 20B instead of transmitting the response information 50C to the first mobile terminal 20A as indicated by the solid line (3).

  If the determination in step 120 is affirmative, that is, if it is determined that the request information 50A and the position information have been received, the CPU 31 stores the position information of the first mobile terminal 20A in the position management table 35A in step 130. . Next, the CPU 31 selects the mobile terminal 20 that has the data 50B requested by the request information 50A and is predicted to exist in an area where ad hoc communication can be performed with the first mobile terminal 20A. To do. The mobile terminal 20 possessing the data 50B can be identified from the data management table 36A of FIG. 3B, for example.

  The position of the mobile terminal 20 can be predicted from, for example, the position management table 35A in FIG. 3A. The position of the mobile terminal 20 may be predicted from destination information or route information, which is an example of position management information, set in a navigation system that uses the GPS 62 of the mobile terminal 20. Further, the destination of the mobile terminal 20 may be predicted from schedule information that is an example of location management information stored in the secondary storage unit 53 of the mobile terminal 20. Further, the destination of the mobile terminal 20 may be predicted from the past movement history of the mobile terminal 20 which is an example of location management information (for example, every Wednesday at 2 pm leaves the head office and at 3 pm at the branch office) Arrive, etc.).

  As described above, the location information of the mobile terminal 20 is transmitted to the server 10 together with the request information 50A in step 110, and is stored in the location management table in step 130. Therefore, the location information of the mobile terminal 20 that already has the requested data 50B, that is, has requested the server 10 to transmit the data 50B, and the corresponding data have already been transmitted to the server 10. The position information transmitted to the server 10 is registered in the position management table 35A, and the corresponding data is registered in the data management table 36A.

  In step 140, the CPU 31 of the server 10 transmits response information 50C for instructing the first mobile terminal 20A to transmit the data 50B from the second mobile terminal 20B to the first mobile terminal 20A by mobile phone communication. The control process ends.

  In step 150, the CPU 51A of the first mobile terminal 20A determines whether or not the response information 50C has been received. CPU 51A repeats the determination in step 150 until the determination is positive. If the determination in step 150 is affirmative, the CPU 51A determines in step 160 whether data can be received from the second mobile terminal 20B. The CPU 51A repeats the determination in step 160 until the determination in step 160 is affirmed.

  If the CPU 51A determines in step 160 that data can be received from the second mobile terminal 20B, the CPU 51A transmits a data transmission request for requesting the second mobile terminal 20B to transmit the data 50B in step 170. When it is determined that the second mobile terminal 20B has moved into an area where ad hoc communication is possible with the first mobile terminal 20A, the first mobile terminal 20A can receive data from the second mobile terminal 20B. It is determined that

  Whether or not the first mobile terminal 20A can receive the data 50B from the second mobile terminal 20B by ad hoc communication may be determined as follows. That is, the CPU 51A of the first mobile terminal 20A transmits a small amount of test data to the second mobile terminal 20B by ad hoc communication, and determines whether or not a test data reception notification from the second mobile terminal 20B has been received.

  In step 180, the CPU 51B of the second mobile terminal 20B determines whether a data transmission request has been received. CPU 51B repeats the determination in step 180 until the determination is positive.

  If the determination in step 180 is affirmative, that is, if it is determined that a data transmission request has been received from the first mobile terminal 20A, in step 190, the CPU 51B of the second mobile terminal 20B transfers the data 50B to the first mobile terminal 20A. To ad hoc communication. When transmitting the data 50B, the CPU 51B of the second mobile terminal 20B ends the communication control process.

  In step 210, the CPU 51A of the first mobile terminal 20A determines whether or not the data 50B has been received. CPU 51A repeats the determination in step 210 until the determination is positive. When the determination is positive, the CPU 51A of the first mobile terminal 20A ends the communication control process.

  If a plurality of mobile terminals 20 are found as second mobile terminal candidates in step 130, the mobile terminal 20 having the shortest time T until data 50B is transmitted to the first mobile terminal 20A is transferred to the second mobile terminal 20A. The terminal 20B can be selected. The time T is obtained by T1 + T2, for example. The time T1 is a time required for the second mobile terminal candidate to move from the current position into an area in which communication with the first mobile terminal 20A is possible using ad hoc communication. The time T2 is the time for the second mobile terminal candidate to transmit the data 50B to the first mobile terminal 20A by ad hoc communication within an area where communication by ad hoc communication is possible.

  The time T1 can be obtained, for example, by acquiring from the current time and location management table 35A the time at which the second mobile terminal candidate arrives in an area that can communicate with the first mobile terminal 20A by ad hoc communication.

Further, the time T may be acquired as follows. A communication speed (communication band) in ad hoc communication between the second mobile terminal candidate (ter2) and the first mobile terminal 20A (ter1) at time t is a function br (ter1 illustrated by a curve 301 in FIG. , Ter2, t) will be described. The time T for transmitting the data 50B of the data amount Dac from the second mobile terminal candidate to the first mobile terminal 20A is obtained by expanding the following equation (1) and solving for T.

  The function br (ter1, ter2, t) is acquired from the band characteristics between the first mobile terminal 20A and the second mobile terminal candidates, that is, the relationship between the distance and the communication band. The distance between the first mobile terminal 20A and the second mobile terminal candidate is calculated by obtaining each position at the time t from the position management table 35A and obtaining a difference in position. In FIG. 6, the vertical axis represents communication speed [bps] (also referred to as communication band), and the horizontal axis represents time [s]. The area of the shaded area 302 represents the data amount of the data 50B.

  The first mobile terminal 20A may move after transmitting the request information 50A to the server 10 in step 110. Even in this case, when the movement of the first mobile terminal 20A is included in the position information of the first mobile terminal 20A transmitted to the server 10 in Step 110, the server 10 determines whether the movement of the first mobile terminal 20A is based on the position information. To select an appropriate second mobile terminal 20B.

  When the movement of the first mobile terminal 20A is different from the position information transmitted to the server 10 in step 110, the first mobile terminal 20A transmits the updated position information to the server 10. Accordingly, the server 10 can select an appropriate second mobile terminal 20B in step 130. Note that the location information of the mobile terminal 20 may be updated, for example, when the mobile terminal 20 transmits the location information to the server 10 every predetermined time. This is to cope with a case where the mobile terminal 20 moves different from the position information registered in the position management table 35A.

  In step 140, the server 10 transmits the response information 50C to the first mobile terminal 20A, and the first mobile terminal 20A relays the transmission instruction to the second mobile terminal 20B. However, in the present embodiment, It is not limited to this. The server 10 may directly send the response information 50C to the second mobile terminal 20B. In this case, it is determined whether or not the second mobile terminal 20B has moved into an area that can communicate with the first mobile terminal 20A by ad hoc communication. If the determination is affirmative, the data 50B is transmitted to the first mobile terminal 20A. To do.

  In the present embodiment, the example in which the second communication is ad hoc communication has been described. However, this embodiment is not limited to this. For example, the second communication may be multi-hop communication. In multi-hop communication, communication in ad hoc mode is performed by a bucket relay system, and communication is performed via a plurality of mobile terminals. Therefore, the number of communication target mobile terminals for multi-hop communication is larger than the number of communication target mobile terminals for ad hoc communication, and smaller than the number of mobile target communication target mobile terminals.

  The number of communication target mobile terminals is, for example, the number of mobile terminals affected by communication such as sharing communication resources or relaying communication. When the communication cost in the communication system is determined based on the number of communication target mobile terminals, the communication cost of multi-hop communication is higher than the communication cost of ad hoc communication and lower than the communication cost of mobile phone communication. Therefore, the second mobile terminal is given priority over the mobile terminal that is predicted to be in an area in which ad hoc communication is possible with the first mobile terminal 20A over the mobile terminal that is predicted to be in an area capable of multi-hop communication. Select as 20.

  In the present embodiment, the case where the first communication is mobile phone communication has been described. However, this embodiment is not limited to this. For example, the first communication may be satellite communication.

  The location management information and the data management information may be transmitted to each mobile terminal 20 that has requested the server 10 to transmit data, and stored in the secondary storage unit 53 of the mobile terminal 20, for example. In this case, each of the mobile terminals 20 may execute the function described above as a function of the server 10 instead of the server 10.

  That is, the control unit 22 of the mobile terminal 20 selects the mobile terminal that has the request data and is predicted to exist in the area where the second communication with the own terminal is possible as the selected mobile terminal. The selection is performed based on the location management information that stores the location information of the mobile terminal that has made a data transmission request and the data management information in which a plurality of pieces of information indicating data held by the mobile terminal are registered. The selected mobile terminal is a plurality of mobile terminals each capable of executing a plurality of different wireless communications including a first communication capable of communication within a predetermined area and a second communication capable of communication within an area narrower than the predetermined area. Select from. The receiving unit 21 of the mobile terminal 20 receives location management information and data management information from the server 10 through first communication, and receives request data from the selected mobile terminal through second communication.

  In the present embodiment, the reception unit 11 receives the data transmission request and the location information of the mobile terminal that has made the data transmission request from each of the plurality of mobile terminals each capable of executing a plurality of different communications. Received by any of the second communications. The plurality of different communications includes a first communication and a second communication capable of communication within a predetermined area. The control unit 12 possesses the request data requested by the data transmission request, and selects a mobile terminal that is predicted to exist in an area where the second communication can be performed with the requesting mobile terminal that has transmitted the data transmission request. Control to select as a selected mobile terminal. The selection is controlled based on the data transmission request received by the receiving unit 11, the location management information in which the received location information is stored, and the data management information in which information indicating data held by the mobile terminal is registered. The transmission unit 13 sends a transmission instruction to the selected mobile terminal directly or directly to the selected mobile terminal through either the first communication or the second communication to instruct the requesting mobile terminal to transmit the request data by the second communication. Relay and send.

  As described above, in the present embodiment, even when the mobile terminals do not exist within the area where short-range communication is possible, the location management information and the data management information including the location information of each of the plurality of mobile terminals received by the first communication The selected mobile terminal is selected based on. Accordingly, it is possible to reduce the amount of communication between the information processing apparatus and the requesting mobile terminal.

  In the present embodiment, the second communication has a lower communication cost than the first communication. Further, the second communication has a narrow communication area compared to the first communication. In the present embodiment, the selected mobile terminal transmits the request data to the requesting mobile terminal instead of the information processing apparatus in the second communication with a low communication cost, that is, with the number of communication target mobile terminals being smaller than the first communication. . Therefore, it is possible to reduce the communication cost of the entire system.

[Second Embodiment]
Next, a second embodiment which is an example of the embodiment will be described. The description of the same configuration and operation as in the first embodiment is omitted.

  In the present embodiment, as indicated by a solid line (1) in FIG. 7, when the server 10 that has received the request information 50A cannot select the second mobile terminal 20B based on the location management table 35A and the data management table 36A, As indicated by the solid line (2), the server 10 transmits the data 50B to the first mobile terminal 20A by mobile phone communication.

  The case where the server 10 cannot select the second mobile terminal 20B is, for example, predicted to exist in an area where the data 50B is possessed and near field communication with the first mobile terminal 20A is possible. This is a case where the second mobile terminal 20B cannot be found. The case where the server 10 cannot select the second mobile terminal 20B means that the discovered second mobile terminal 20B completes the transmission of the data 50B to the first mobile terminal 20A within the expected communication completion time Ts. This is the case when it is predicted that it will not be possible. The expected communication completion time Ts is, for example, the time that the user of the first mobile terminal 20A expects the communication completion of the data 50B.

  Specifically, as illustrated in FIG. 8, when determining that the request information 50 </ b> A has been received in step 120, the CPU 31 of the server 10 determines in step 132 whether or not the second mobile terminal 20 </ b> B has been found. The second mobile terminal 20B is a mobile terminal that possesses the data 50B and is predicted to exist in an area where short-range communication is possible with the first mobile terminal 20A. If the determination in step 132 is affirmed, the CPU 31 determines in step 133 whether or not the discovered second mobile terminal 20B can transmit the data 50B to the first mobile terminal 20A within the expected communication completion time Ts. .

  The communication completion expected time Ts may be transmitted together with the request information 50A by the CPU 51A of the first mobile terminal 20A when the request information 50A is transmitted to the server 10 in step 110, or may be set in advance. Since the time T (= T1 + T2) until the transmission of the data 50B is completed is described above, the description thereof is omitted.

  When the determination in step 132 or step 133 is negative, the CPU 31 of the server 10 transmits the data 50B to the first mobile terminal 20A by mobile phone communication in step 124.

  On the other hand, the CPU 51A of the first mobile terminal 20A determines in step 150 whether or not the response information 50C has been received. If the determination in step 150 is negative, that is, if the response information 50C is not received, it is determined in step 209 whether or not the data 50B transmitted by the CPU 31 of the server 10 is received in step 124. When the determination in step 209 is affirmative, that is, when data 50B is received, the CPU 51A of the first mobile terminal 20A ends the communication control process. If the determination in step 209 is negative, that is, if the data 50B is not received, the CPU 51A returns to step 150.

  In the present embodiment, the reception unit 11 receives the data transmission request and the location information of the mobile terminal that has made the data transmission request from each of the plurality of mobile terminals each capable of executing a plurality of different communications. Received by any of the second communications. The plurality of different communications includes a first communication and a second communication capable of communication within a predetermined area. The control unit 12 possesses the request data requested by the data transmission request, and selects a mobile terminal that is predicted to exist in an area where the second communication can be performed with the requesting mobile terminal that has transmitted the data transmission request. Control to select as a selected mobile terminal. The selection is controlled based on the data transmission request received by the receiving unit 11, the location management information in which the received location information is stored, and the data management information in which information indicating data held by the mobile terminal is registered. The transmission unit 13 sends a transmission instruction to the selected mobile terminal directly or directly to the selected mobile terminal through either the first communication or the second communication to instruct the requesting mobile terminal to transmit the request data by the second communication. Relay and send.

  As described above, in the present embodiment, even when the mobile terminals do not exist within the area where short-range communication is possible, the location management information and the data management information including the location information of each of the plurality of mobile terminals received by the first communication The selected mobile terminal is selected based on. Accordingly, it is possible to reduce the amount of communication between the information processing apparatus and the requesting mobile terminal.

  In the present embodiment, the second communication has a lower communication cost than the first communication. Further, the second communication has a narrow communication area compared to the first communication. In the present embodiment, the selected mobile terminal transmits the request data to the requesting mobile terminal instead of the information processing apparatus in the second communication with a low communication cost, that is, with the number of communication target mobile terminals being smaller than the first communication. . Therefore, it is possible to reduce the communication cost of the entire system.

  In the present embodiment, when the information processing apparatus cannot select the selected mobile terminal, the information processing apparatus transmits the request data to the requesting mobile terminal through the first communication, so that the request data is transmitted to the requesting mobile terminal. The possibility of not being transmitted can be reduced.

[Third Embodiment]
Next, a third embodiment which is an example of the embodiment will be described. A description of the same configurations and operations as those in the first embodiment and the second embodiment will be omitted.

  In the present embodiment, an example will be described in which the second mobile terminal selected by the server 10 that has received the request information 50A alone cannot complete data transmission to the first mobile terminal 20A within the expected communication completion time Ts. As illustrated in FIG. 9, the server 10 selects the second mobile terminals 20B,..., 20E, that is, a plurality of second mobile terminals, as indicated by alternate long and short dash lines (2) and (2) ′. As indicated by the solid line (3), the server 10 causes the second mobile terminals 20B,..., 20E to transmit data 50BA,..., 50BE, which is divided data obtained by dividing the data 50B, to the first mobile terminal 20A. The instructed response information 50C is transmitted to the first mobile terminal 20A. Each of the second mobile terminals 20B,..., 20E moves to an area where short-range communication is possible with the first mobile terminal 20A, as indicated by broken lines (4) and (4) '. After the movement, each of the second mobile terminals 20B,..., 20E transmits each of the data 50BA,..., 50BE to the first mobile terminal 20A, as indicated by a solid line (5) and a solid line (5) ′.

  Specifically, as illustrated in FIG. 10, when the CPU 31 of the server 10 determines that the request information 50 </ b> A is received from the first mobile terminal 20 </ b> A at step 120, the second mobile terminal 20 </ b> B is selected at step 135. To do. In step 136, the CPU 31 determines whether or not the second mobile terminal 20B can complete transmission of the data 50B to the first mobile terminal 20A within the expected communication completion time Ts. If the determination in step 136 is negative, the CPU 31 returns to step 135 and selects another second mobile terminal 20.

  When the determination in step 136 is affirmed, the CPU 31 transmits response information 50C to the first mobile terminal 20A in step 141, and ends the communication control process. When the second mobile terminals 20B,..., 20E are selected in step 135, the response information 50C is obtained by dividing the data 50B from the second mobile terminals 20B,. Including a transmission instruction for instructing to transmit the message. The response information 50C indicates that each of the second mobile terminals 20B,..., 20E moves in an area where short-range communication with the first mobile terminal 20A is possible in the order of the second mobile terminals 20B,. It also includes information indicating.

  The CPU 51A of the first mobile terminal 20A determines whether or not the response information 50C has been received in step 151. The CPU 51A repeats the determination in step 151 until the determination in step 151 is positive. If the determination in step 151 is affirmed, the CPU 51A determines in step 161 whether data can be received from the second mobile terminal 20B. When the determination in step 161 is affirmed, in step 171, the CPU 51A transmits a data transmission request to the second mobile terminal 20B. The data transmission request also includes information requesting to transmit the data 50BA that is the divided data.

  In step 181, the CPU 51 </ b> B of the second mobile terminal 20 </ b> B determines whether a data transmission request has been received. The determination in step 181 is repeated until the determination in step 181 is affirmed. If the determination in step 181 is affirmed, the CPU 51B transmits data 50BA to the first mobile terminal 20A in step 191 and ends the communication control process.

  In step 172, the CPU 51A of the first mobile terminal 20A determines whether or not the divided data 50BA has been received. The determination in step 172 is repeated until the determination in step 172 is affirmed. If the determination in step 172 is affirmed, the CPU 51A determines in step 211 whether transmission of the data transmission request has been completed.

  If the determination in step 211 is negative, the CPU 51A returns to step 161. If the determination in step 211 is affirmative, that is, if it is determined that a data transmission request has been transmitted to the second mobile terminals 20B,..., 20E, the CPU 51A ends the communication control process. Steps 182 and 192 are the same as steps 181 and 191, and the description thereof is omitted.

  In addition, when selecting a some 2nd mobile terminal, you may preferentially select the mobile terminal 20 with low communication cost as a 2nd mobile terminal. That is, it is possible to preferentially select the mobile terminals 20 having a small number of communication target mobile terminals. For example, when a mobile terminal 20 capable of direct one-to-one communication by ad hoc communication and a mobile terminal 20 capable of communication only by multi-hop communication are found as candidates for the second mobile terminal, the mobile capable of communication by ad hoc communication The terminal 20 is preferentially selected as the second mobile terminal. Thereby, communication cost can be saved. Moreover, in order to save communication cost, it is better that the number of second mobile terminals to be selected is small. That is, when the data 50B can be transmitted within the expected communication completion time Ts by the same communication means by a combination of two second mobile terminals or a combination of three second mobile terminals, the two second mobile terminals Select a combination.

  In addition, when two second mobile terminals are selected and exclusive communication that cannot communicate with the other second mobile terminal is performed while communicating with one second mobile terminal, the communication speed The higher second mobile terminal may transmit the data. For example, an example in which the second mobile terminal 20B and the second mobile terminal 20C perform exclusive communication will be described.

  As illustrated in FIG. 11, a curve 312 represents the communication speed of the second mobile terminal 20B, and a curve 313 represents the communication speed of the second mobile communication terminal 20C. Since the communication speed of the second mobile terminal 20B is higher until the time Tx, the second mobile terminal 20B transmits data to the first mobile terminal 20A, and after the time Tx, the communication speed of the second mobile terminal 20C. Therefore, data is transmitted from the second mobile terminal 20C to the first mobile terminal 20A. When the second mobile terminal 20B and the second mobile terminal 20C perform non-exclusive communication, the first mobile terminal 20B and the second mobile terminal 20C receive the first from the time Tx1 to the time Tx2 in FIG. Data is transmitted to the mobile terminal 20A.

  If it is determined in step 135 that the data 50B cannot be transmitted within the expected communication completion time Ts even if all selectable second mobile terminals are selected, in addition to the plurality of second mobile terminals, the server The divided data obtained by dividing the data 50B from 10 may be transmitted. In FIG. 12, for example, the second mobile terminal 20B whose communication speed is represented by a curve 304 and the second mobile terminal 20C whose communication speed is represented by a broken line 305 are selected, and other second mobile terminal candidates are found. The example which did not exist is shown. Data in which the server 10 whose communication speed is represented by the straight line 306 is indicated by the hatched area 307 when it is predicted that the transmission of the data 50B cannot be completed only by the second mobile terminals 20B and 20C by the expected communication completion time Ts. The amount of data is transmitted to the first mobile terminal 20A. That is, the remaining part obtained by subtracting the data 50BA transmitted from the second mobile terminal 20B and the data 50BB transmitted from the second mobile terminal 20C from the data 50B is transmitted by the server 10 to the first mobile terminal 20A.

  In addition, this embodiment may be applied to 1st Embodiment, 2nd Embodiment, or the combination of 1st Embodiment and 2nd Embodiment.

  In the present embodiment, the reception unit 11 receives the data transmission request and the location information of the mobile terminal that has made the data transmission request from each of the plurality of mobile terminals each capable of executing a plurality of different communications. Received by any of the second communications. The plurality of different communications includes a first communication and a second communication capable of communication within a predetermined area. The control unit 12 possesses the request data requested by the data transmission request, and selects a mobile terminal that is predicted to exist in an area where the second communication can be performed with the requesting mobile terminal that has transmitted the data transmission request. Control to select as a selected mobile terminal. The selection is controlled based on the data transmission request received by the receiving unit 11, the location management information in which the received location information is stored, and the data management information in which information indicating data held by the mobile terminal is registered. The transmission unit 13 sends a transmission instruction to the selected mobile terminal directly or directly to the selected mobile terminal through either the first communication or the second communication to instruct the requesting mobile terminal to transmit the request data by the second communication. Relay and send.

  As described above, in the present embodiment, even when the mobile terminals do not exist within the area where short-range communication is possible, the location management information and the data management information including the location information of each of the plurality of mobile terminals received by the first communication The selected mobile terminal is selected based on. Accordingly, it is possible to reduce the amount of communication between the information processing apparatus and the requesting mobile terminal.

  In the present embodiment, the second communication has a lower communication cost than the first communication. Further, the second communication has a narrow communication area compared to the first communication. In the present embodiment, the selected mobile terminal transmits the request data to the requesting mobile terminal instead of the information processing apparatus in the second communication with a low communication cost, that is, with the number of communication target mobile terminals being smaller than the first communication. . Therefore, it is possible to reduce the communication cost of the entire system.

  In the present embodiment, the control unit 12 selects a plurality of selected mobile terminals, and the transmission unit 13 transmits an instruction to transmit each of the divided data obtained by dividing the request data from each of the plurality of selected mobile terminals to the requesting mobile terminal. Send in addition to instructions. In addition, when the total amount of the divided data transmitted by each of the plurality of selected mobile terminals is smaller than the data amount of the requested data, the transmitting unit 13 transmits the remaining portion of the requested data to the requesting mobile terminal through the first communication. To do. Thereby, in this embodiment, a possibility that transmission of request data may not be completed within a predetermined time can be reduced.

[Fourth Embodiment]
Next, a fourth embodiment which is an example of the embodiment will be described. A description of the same configurations and operations as those of the first to third embodiments is omitted.

  In the present embodiment, as illustrated in FIG. 13, as indicated by a solid line (5), after requesting the data 50B to be transmitted from the second mobile terminal 20B to the first mobile terminal 20A, the predicted communication completion time Td is An example in which the reception of the data 50B has not been completed before the time has elapsed will be described. The first mobile terminal 20A transmits request information 50A requesting the server 10 to transmit data 50B from the server 10 to the first mobile terminal 20A, as indicated by a solid line (6). The server 10 that has received the request information 50A transmits the data 50B to the first mobile terminal by mobile phone communication, as indicated by the solid line (7).

  Specifically, as illustrated in FIG. 14, the CPU 51A of the first mobile terminal 20A transmits a data transmission request to the second mobile terminal 20B in Step 170, and whether reception of the data 50B is completed in Step 183. Judge whether or not. If the determination in step 183 is affirmed, the CPU 51A ends the communication control process.

If the determination in step 183 is negative, the CPU 51A determines in step 184 whether or not the supplementary transmission determination time Te has elapsed after transmitting the request information 50A in step 110. The supplementary transmission determination time Te is a time obtained by subtracting the time Tf for transmitting the request information 50A in step 185 described later from the communication completion prediction time Td. Therefore, the supplementary transmission prediction time Te can be obtained by the calculation represented by the equation (2).
Te = Td−Tf (2)

As illustrated in FIG. 15, the estimated communication completion time Td is that the server 10 independently transmits the data 50B to the first mobile terminal 20A from the expected communication completion time Ts transmitted together with the request information 50A in Step 110. This is the time obtained by subtracting the time Ts1 required for. The time Ts1 can be obtained by dividing the data amount Db of the data 50B by the communication speed Vs1 from the server 10 to the first mobile terminal 20A. Therefore, the communication completion prediction time Td can be obtained by, for example, calculation represented by Expression (3).
Td = Ts−Ts1 = Ts− (Db / Vs1) (3)

  If the determination in step 184 is negative, the CPU 51A returns to step 183. On the other hand, when the determination in step 184 is affirmed, in step 185, the CPU 51A sends to the server 10 a portion of the data 50B where the first mobile terminal 20A has not completed reception (hereinafter also referred to as unreceived data). ) Is sent to request information 50A.

  In step 220, the CPU 31 of the server 10 determines whether or not the request information 50A has been received. If the determination is affirmative, in step 230, the requested unreceived data is transmitted to the first mobile terminal 20A for communication. The control process ends. On the other hand, if the determination in step 220 is negative, the CPU 31 determines in step 240 whether or not the communication completion prediction time Td has elapsed after receiving the request information 50A in step 120, and the determination is negative. If yes, return to step 220. When the determination in step 240 is affirmed, the CPU 31 ends the communication control process. In step 230, when the server 10 transmits unreceived data to the first mobile terminal 20A, the server 10 or the first mobile terminal 20A instructs the second mobile terminal 20B to stop data transmission.

  Next, an example will be described in which the second mobile terminal 20B selected in step 130 has not moved into an area in which near field communication with the first mobile terminal 20A is possible. In step 160, the CPU 51A of the first mobile terminal 20A determines whether data can be received from the second mobile terminal 20B. If the determination in step 160 is negative, the CPU 51A determines in step 162 whether or not the supplemental transmission determination time Te has elapsed since the request information 50A was transmitted in step 110. If the determination is negative, the CPU 51A returns to step 160.

  On the other hand, when the determination in step 162 is affirmative, that is, when the second mobile terminal 20B does not move into an area where short-distance communication with the first mobile terminal 20A is possible until the supplementary transmission determination time Te elapses. The CPU 51A proceeds to step 185. As described above, in step 185, the CPU 51A transmits request information requesting the server 10 to transmit unreceived data. That is, even when the second mobile terminal 20B does not move into an area where the short distance communication with the first mobile terminal 20A is possible, the server 10 transmits unreceived data (in this case, data 50B) by mobile phone communication. 1 Transmit to mobile terminal 20A.

  Note that, in the above, the communication completion prediction time Td is transmitted from the communication completion expected time Ts transmitted together with the request information 50A in Step 110, as shown in FIG. 15, from the server 10 to the first mobile terminal 20A. The time required for this was subtracted from the time required. However, this embodiment is not limited to this. For example, Td = Ts or Td = Ts−Ts1 / C. C may be a value exceeding 1, for example.

  The present embodiment may be applied to any one of the first to third embodiments or any combination of the first to third embodiments.

  In the present embodiment, the reception unit 11 receives the data transmission request and the location information of the mobile terminal that has made the data transmission request from each of the plurality of mobile terminals each capable of executing a plurality of different communications. Received by any of the second communications. The plurality of different communications includes a first communication and a second communication capable of communication within a predetermined area. The control unit 12 possesses the request data requested by the data transmission request, and selects a mobile terminal that is predicted to exist in an area where the second communication can be performed with the requesting mobile terminal that has transmitted the data transmission request. Control to select as a selected mobile terminal. The selection is controlled based on the data transmission request received by the receiving unit 11, the location management information in which the received location information is stored, and the data management information in which information indicating data held by the mobile terminal is registered. The transmission unit 13 sends a transmission instruction to the selected mobile terminal directly or directly to the selected mobile terminal through either the first communication or the second communication to instruct the requesting mobile terminal to transmit the request data by the second communication. Relay and send.

  As described above, in the present embodiment, even when the mobile terminals do not exist within the area where short-range communication is possible, the location management information and the data management information including the location information of each of the plurality of mobile terminals received by the first communication The selected mobile terminal is selected based on. Accordingly, it is possible to reduce the amount of communication between the information processing apparatus and the requesting mobile terminal.

  In the present embodiment, the second communication has a lower communication cost than the first communication. Further, the second communication has a narrow communication area compared to the first communication. In the present embodiment, the selected mobile terminal transmits the request data to the requesting mobile terminal instead of the information processing apparatus in the second communication with a low communication cost, that is, with the number of communication target mobile terminals being smaller than the first communication. . Therefore, it is possible to reduce the communication cost of the entire system.

  In the present embodiment, when it is predicted that transmission of request data to the requesting mobile terminal will not be completed within a predetermined time, the transmission unit 11 determines a part of the request data that has not been transmitted as the requesting mobile terminal. To the first communication.

  Thus, even when the selected mobile terminal does not transmit the request data to the request mobile terminal or transmits the request data at a communication speed lower than predicted, the request mobile terminal The possibility that reception cannot be completed can be reduced. For example, when the selected mobile terminal does not transmit request data to the requesting mobile terminal or when request data is transmitted at a lower communication speed than predicted, the selected mobile terminal moves differently from the prediction based on the location management information. Can occur in some cases.

[Fifth Embodiment]
Next, a fifth embodiment which is an example of the embodiment will be described. A description of the same configurations and operations as those of the first to fourth embodiments is omitted.

  In the fifth embodiment, an example will be described in which the server 10 cannot find a second mobile terminal that possesses data 50B and is predicted to exist in an area where short-range communication with the first mobile terminal 20A is possible. If the server 10 cannot find the second mobile terminal that possesses the data 50B and is predicted to exist in an area where short-range communication with the first mobile terminal 20A is possible, the server 10 selects the mobile terminal 20 that possesses the data 50B. . As indicated by the one-dot chain line (5) in FIG. 16, the server 10 is not predicted to be present in an area where near field communication is possible with the first mobile terminal 20A among the discovered mobile terminals 20, The mobile terminal 20F predicted to exist near the mobile terminal 20A is selected. The mobile terminal 20F is a candidate for the second mobile terminal. As indicated by the solid line (3), the server 10 transmits to the first mobile terminal 20A a movement instruction 50D instructing the first mobile terminal 20A to move within an area where short-range communication with the mobile terminal 20F is possible.

  The first mobile terminal 20A transmits to the server 10 request information 50A indicating whether or not to accept the movement instruction 50D of the server 10, as indicated by a solid line (4). When the request information 50A indicates that the server 10 accepts the movement instruction, as shown by the solid line (6), the server 10 instructs the mobile terminal 20F to transmit the data 50B to the first mobile terminal 20A. 50C is transmitted to the first mobile terminal 20A. In this case, as indicated by a broken line (7), the first mobile terminal 20A moves into an area where short-range communication is possible with the mobile terminal 20F, and as indicated by a solid line (8), the mobile terminal 20F Transmits data 50B to the first mobile terminal 20A. On the other hand, when the request information 50A indicates that the move instruction 50D of the server 10 is not accepted, the server 10 transmits the data 50B to the first mobile terminal 20A by mobile phone communication as indicated by a solid line (6) '.

  Specifically, as illustrated in FIG. 17, the CPU 31 of the server 10 determines in step 120 that the request information 50 </ b> A has been received. Next, in step 130A, the CPU 31 of the server 10 has found the second mobile terminal 20 that has the data 50B and is predicted to exist in an area where short-distance communication with the first mobile terminal 20A is possible. Judge whether or not. If the determination in step 130A is affirmative, the CPU 31 proceeds to step 130F. When the determination in step 130A is negative, the CPU 31 determines in step 130B that the mobile terminal 20F that is the candidate for the second mobile terminal that possesses the data 50B and is predicted to exist near the first mobile terminal 20A. select. In step 130C, the CPU 31 transmits a movement instruction 50D to the first mobile terminal 20A so that the first mobile terminal 20A moves within an area where short-range communication with the mobile terminal 20F is possible.

  In step 150, the CPU 51A of the first mobile terminal 20A determines whether or not the response information 50C has been received. If the response information 50C has not been received, the CPU 51A determines whether or not the movement instruction 50D has been received from the server 10 in step 152. To do. If the determination is negative, the CPU 51A returns to step 150. On the other hand, if the determination is affirmative, in step 153, the CPU 51A transmits to the server 10 request information 50A including a movement instruction answer indicating whether or not to accept the movement instruction 50D of the server 10. For example, the CPU 51A of the first mobile terminal 20A displays details of the movement instruction from the server 10 on the display of the first mobile terminal 20A, and prompts the user to select whether or not to accept the movement instruction. , May be determined by selections made by the user.

  In step 130D, the CPU 31 of the server 10 determines whether or not the request information 50A, that is, the movement instruction answer has been received. CPU31 repeats determination of step 130D until determination is affirmed. If the determination is affirmative, the CPU 31 determines in step 130E whether the movement instruction answer acknowledges the movement instruction. When the determination in step 130E is affirmed, in step 130F, the CPU 31 transmits response information 50C instructing the mobile terminal 20F to transmit the data 50B to the first mobile terminal 20A. Further, the CPU 31 updates the position information of the first mobile terminal 20A in the position management table 35A of FIG. This is because the movement schedule of the first mobile terminal 20A has been changed. Next, the CPU 31 ends the communication control process. On the other hand, if the determination in step 130E is negative, the CPU 31 transmits the data 50B to the first mobile terminal 20A by mobile phone communication in step 130G, and ends the communication control process.

  The CPU 51A of the first mobile terminal 20A determines whether or not the move instruction 50D of the server 10 is accepted in Step 154, and if the determination is affirmed, it determines whether or not the response information 50C is received in Step 155. . CPU51A repeats the determination of step 155 until determination is affirmed. If the determination in step 155 is affirmed, the CPU 51A returns to step 160. On the other hand, if the determination in step 154 is negative, the CPU 51A proceeds to step 210.

  The present embodiment may be applied to any one of the first to fourth embodiments or any combination of the first to fourth embodiments.

  In the present embodiment, the reception unit 11 receives the data transmission request and the location information of the mobile terminal that has made the data transmission request from each of the plurality of mobile terminals each capable of executing a plurality of different communications. Received by any of the second communications. The plurality of different communications includes a first communication and a second communication capable of communication within a predetermined area. The control unit 12 possesses the request data requested by the data transmission request, and selects a mobile terminal that is predicted to exist in an area where the second communication can be performed with the requesting mobile terminal that has transmitted the data transmission request. Control to select as a selected mobile terminal. The selection is controlled based on the data transmission request received by the receiving unit 11, the location management information in which the received location information is stored, and the data management information in which information indicating data held by the mobile terminal is registered. The transmission unit 13 sends a transmission instruction to the selected mobile terminal directly or directly to the selected mobile terminal through either the first communication or the second communication to instruct the requesting mobile terminal to transmit the request data by the second communication. Relay and send.

  As described above, in the present embodiment, even when the mobile terminals do not exist within the area where short-range communication is possible, the location management information and the data management information including the location information of each of the plurality of mobile terminals received by the first communication The selected mobile terminal is selected based on. Accordingly, it is possible to reduce the amount of communication between the information processing apparatus and the requesting mobile terminal.

  In the present embodiment, the second communication has a lower communication cost than the first communication. Further, the second communication has a narrow communication area compared to the first communication. In the present embodiment, the selected mobile terminal transmits the request data to the requesting mobile terminal instead of the information processing apparatus in the second communication with a low communication cost, that is, with the number of communication target mobile terminals being smaller than the first communication. . Therefore, it is possible to reduce the communication cost of the entire system.

  In the present embodiment, when it is predicted that there is no mobile terminal possessing request data in an area where the second communication with the requesting mobile terminal is possible, the transmission unit 13 sends a predetermined area to the requesting mobile terminal. A movement instruction for instructing to move in is transmitted. The predetermined area is an area in which the second communication is possible with the mobile terminal having the request data. In the present embodiment, when the control unit 12 receives a response indicating that the movement instruction is accepted from the requesting mobile terminal by the receiving unit 11, the position management of the requesting mobile terminal that has performed the response indicating that the approval is accepted. Update information.

  This reduces the possibility that the requested mobile terminal cannot acquire the requested data even when it is not predicted that there is a mobile terminal having the requested data in an area where short-range communication is possible with the requested mobile terminal. It becomes possible to do.

[Sixth Embodiment]
Next, a sixth embodiment which is an example of the embodiment will be described. A description of the same configurations and operations as those of the first to fifth embodiments will be omitted.

  In the sixth embodiment, data 50E that is an example of convertible data is possessed, and the convertible data 50E is obtained from the mobile terminal 20 that is predicted to exist in an area where short-range communication with the first mobile terminal 20A is possible. One mobile terminal 20A is transmitted. The data 50E is data that can be converted into data 50B, which is an example of request data, and the first mobile terminal 20A is an example of a request mobile terminal.

  FIG. 18A illustrates the data conversion management table 37A. The data conversion management table 37A is a table in which the input data corresponding to the data 50E, the data name of the output data corresponding to the data 50B, and the process ID of the process for converting the input data into the output data are recorded in association with each other. The data conversion management table 37A may further include a processing option and a processing time. The processing option may be, for example, the resolution of the input data and the resolution of the output data if the processing is resolution conversion, for example, the format of the input data and the format of the output data if the processing is format conversion. Good. The processing time represents a standard processing time according to a predetermined environment.

  Specifically, for example, the data name of the input data is “V01-FHD.mp4”, the data name of the output data is “V01-UXGA.mp4”, the processing options are “in = 1920x1080, out = 1600x1200”, and the processing ID is In the case of “P1”, the processing time is 60 seconds. The processing option “in = 1920 × 1080, out = 1600 × 1200” represents that the resolution of input data is 1920 pixels × 1080 pixels and the resolution of output data is 1600 pixels × 1200 pixels. The process ID will be described later.

  FIG. 18B illustrates the data correspondence table 38A. The data correspondence table 38A is a table in which data IDs, data names, and data hash values included in the data management table 36A of FIG. The data name is a data name of data corresponding to input data or output data included in the data conversion management table 37A of FIG. 18A. A hash value is a value that summarizes the content of data to a certain length, and is a value that can be used to check the integrity of the data.

  Specifically, for example, when the data ID is “38A” and the data name is “V01-FHD.mp4”, the hash value is “c4ca4238a0b923820dcc509a6f75849b”. The hash value is calculated in advance by a predetermined calculation method based on the content of the data indicated by the corresponding data ID or data name. When a data name is used instead of a data ID when making a data request, the data ID may be omitted in FIG. 18B. In this case, the data management table 36A of FIG. 3B is changed so as to record the data name and the terminal ID in association with each other instead of the data ID.

  FIG. 18C illustrates the conversion processing table 39A. The conversion process table 39A is a table in which the process ID, process name, process execution program that is the program name used for process execution, and process description that are also included in the data conversion management table 37A of FIG. It is.

  Specifically, for example, when the process ID is “P1”, the process name is “resolution conversion”, and the process execution program is “convert.exe”, the description is “convert resolution”. The process name and description are support for the user to understand the information and may be omitted.

  The data conversion management table 37A, the data correspondence table 38A, and the conversion processing table 39A are stored in, for example, the secondary storage unit 33 of the server 10.

  Next, an outline of operations of the server 10, the mobile terminal 20A, and the mobile terminal 20B, which are examples of the communication control system, will be described. In the present embodiment, as illustrated in FIG. 19, a mobile terminal 20A (hereinafter also referred to as a first mobile terminal 20A) that is an example of a request mobile terminal requests transmission of data 50B.

  In the present embodiment, as shown by a solid line (1), the first mobile terminal 20A transmits request information 50A, which is an example of a data transmission request for requesting transmission of data 50B, to the server 10 by mobile phone communication. The server 10 that has received the request information 50A selects the mobile terminal 20B based on the location management table 35A, the data management table 36A, the data correspondence table 38A, and the data conversion management table 37A, as indicated by the alternate long and short dash line (2). To do. The mobile terminal 20B (hereinafter also referred to as the second mobile terminal 20B) is an example of the selected mobile terminal. The second mobile terminal 20B is a mobile terminal 20 that possesses data 50E that can be converted into data 50B and is predicted to exist in an area where short-range communication with the first mobile terminal 20A is possible.

  As indicated by the solid line (3), the server 10 transmits response information 50C instructing the first mobile terminal 20A to transmit data 50E from the second mobile terminal 20B to the first mobile terminal 20A. The response information 50C is an example of a transmission instruction. As indicated by a broken line (4), when the second mobile terminal 20B moves to an area where ad hoc communication is possible with the first mobile terminal 20A, as indicated by a solid line (5), the second mobile terminal 20B Data 50E is transmitted to the first mobile terminal 20A by ad hoc communication. The first mobile terminal 20A converts the received data 50E into data 50B requested for transmission. The program used for the conversion process is determined based on the conversion process table 39A.

  Specifically, as illustrated in FIG. 20A, the CPU 51A of the first mobile terminal 20A transmits the request information 50A and the position information of the first mobile terminal 20A to the server 10 by mobile phone communication in Step 310. In step 320, the CPU 31 of the server 10 determines whether the request information 50A and the position information have been received. CPU31 repeats the process of step 320 until determination is affirmed.

  If the determination in step 320 is affirmative, that is, if it is determined that the request information 50A and the position information of the first mobile terminal 20A are received, the CPU 31 determines the position information of the first mobile terminal 20A in step 330. Accumulate in the management table 35A. Next, it is predicted that the CPU 31 has data 50E that can be converted into the data 50B requested by the request information 50A, and exists in an area where ad hoc communication is possible with the first mobile terminal 20A. Mobile terminal 20 is selected.

  In order to select the mobile terminal 20 possessing the data 50E, for example, the data name of the data 50B is first acquired from the data correspondence table 38A of FIG. 18B based on the data ID of the data 50B. Next, the data name of the corresponding input data is acquired based on the data name of the output data in the data conversion management table 37A of FIG. 18A, and the data ID is acquired based on the data name of the data correspondence table 38A. Next, the terminal ID is acquired based on the data ID of the data management table 36A of FIG. 3B, and the mobile terminal 20 corresponding to the terminal ID is requested to transmit the hash value of the data corresponding to the data ID. When the hash value is received, the hash value is acquired based on the data ID in the data correspondence table 38A, the acquired hash value is compared with the received hash value, and the integrity of the data 50E is confirmed. Can be selected.

  Note that the hash value of the data possessed by the mobile terminal 20 may be transmitted to the server 10 at regular intervals, for example, and stored in the second storage unit 33 of the server 10 together with the data ID or the data name. In this case, in order to select the mobile terminal 20 possessing the data 50E, it is not necessary to request the mobile terminal 20E to transmit the hash value of the data. Further, when the hash value of the data of the mobile terminal 20 is changed, the server 10 changes the data management table 36A of FIG. 3B, and data in which the hash value is changed from the terminal ID corresponding to the data ID of the data. You may delete terminal ID of the mobile terminal 20 which possesses. The fact that the hash value of the data has been changed means that the content of the data has been changed, and the mobile terminal 20 is substantially in a state of not having the data.

  In step 340, the CPU 31 of the server 10 transmits response information 50C instructing the first mobile terminal 20A to transmit the data 50E from the second mobile terminal 20B to the first mobile terminal 20A by mobile phone communication. The control process ends. The response information 50C includes instruction information for instructing the first mobile terminal 20A to convert the data 50E into the data 50B, and the program name of the processing execution program that converts the data 50E into the data 50B.

  In order to acquire the program name of the process execution program, first, a process ID (and a process option if present) is acquired based on the input data and output data of the data conversion management table 37A of FIG. 18A. Next, the program name of the process execution program is acquired based on the process ID of the conversion process table 39A of FIG. 18C. When the processing option exists, the response information 50C includes the processing option.

  In step 350, the CPU 51A of the first mobile terminal 20A determines whether or not the response information 50C has been received. CPU 51A repeats the determination in step 350 until the determination is positive. If the determination in step 350 is affirmative, the CPU 51A determines in step 360 whether data reception from the second mobile terminal 20B is possible. The CPU 51A repeats the determination of step 360 until the determination of step 360 is affirmed.

  If the CPU 51A determines in step 360 that data can be received from the second mobile terminal 20B, the CPU 51A transmits a data transmission request for requesting the second mobile terminal 20B to transmit data 50E in step 370. When it is determined that the second mobile terminal 20B has moved into an area where ad hoc communication is possible with the first mobile terminal 20A, the first mobile terminal 20A can receive data from the second mobile terminal 20B. It is determined that

  In step 380, the CPU 51B of the second mobile terminal 20B determines whether a data transmission request has been received. CPU 51B repeats the determination in step 380 until the determination is positive.

  If the determination in step 380 is affirmative, that is, if it is determined that a data transmission request has been received from the first mobile terminal 20A, in step 390, the CPU 51B of the second mobile terminal 20B transfers the data 50E to the first mobile terminal 20A. To ad hoc communication. When transmitting the data 50E, the CPU 51B of the second mobile terminal 20B ends the communication control process.

  In step 410, the CPU 51A of the first mobile terminal 20A determines whether or not the data 50E has been received. CPU 51A repeats the determination in step 410 until the determination is positive. If the determination is affirmative, the CPU 51A of the first mobile terminal 20A uses the processing execution program (and processing option, if present) of the program name included in the response information 50C in step 450 to generate the data 50E. Is converted into data 50B. Thereafter, the CPU 51A of the first mobile terminal 20A ends the communication control process.

  Although the example in which the first mobile terminal 20A performs the conversion from the data 50E to the data 50B has been described above, the present embodiment is not limited to this. As illustrated in FIG. 20B, the second mobile terminal 20B may perform the conversion from the data 50E to the data 50B in step 460 after receiving the data transmission request in step 380. The CPU 51B of the second mobile terminal 20B transmits the data 50B in step 390, and when the CPU 51A of the first mobile terminal 20A receives the data 50B in step 410, the communication control process is terminated. In this case, in step 370, the data transmission request transmitted from the first mobile terminal 20A to the second mobile terminal 20B includes the program name of the process execution program (and the process option if present).

  Note that transmission / reception of information such as the request information 50A and the data 50B may be started when the transmission side makes a reception request to the reception side, or may be started when the reception side makes a transmission request to the transmission side. The same applies to transmission / reception of information in the following description. For example, when transmission of the data 50B is started by the second mobile terminal 20B that is the transmission side making a reception request to the first mobile terminal 20A that is the reception side, the server 10 sends the response information 50C to the second mobile terminal. To 20B. That is, the server 10 transmits the response information 50C to the second mobile terminal 20B instead of transmitting the response information 50C to the first mobile terminal 20A as indicated by the solid line (3). In this case, when receiving the response information 50C, the second mobile terminal 20B starts conversion from the data 50E to the data 50B in step 460.

Whether the conversion from the data 50E to the data 50B is performed by the first mobile terminal 20A or the second mobile terminal 20B depends on which terminal performs the conversion and transmission of the data sooner. Can be determined based on. When the conversion from the data 50E to the data 50B is performed by the second mobile terminal 20B, the time Tg1 for completing the data conversion and transmission is the longer of the time Te1 or the time T1 as illustrated in the equation (4). Can be obtained by adding the time T2 and the time T2. The time Tg1 is an example of an estimated time until the second transmission is completed.
Tg1 = max (Te1, T1) + T2 (4)

  The time Te1 is a time required for data conversion, and the time T1 is a time required for the second mobile terminal 20B to move from the current position to an area where it can communicate with the first mobile terminal 20A by ad hoc communication. The time T2 is a time during which the second mobile terminal 20B transmits the data 50B to the first mobile terminal 20A by ad hoc communication within an area where communication by ad hoc communication is possible. Since the time T1 and the time T2 are described above, the description thereof is omitted.

  As the time Te1, for example, the processing time included in the data conversion management table 37A of FIG. 18A can be used. When the processing time varies depending on the CPU performance, the memory capacity, etc. of the mobile terminal 20, the time Te1 may be determined by multiplying the processing time by a predetermined coefficient for absorbing the variation of the processing time. 18A, the processing time for each type of mobile terminal 20 may be stored, and an appropriate processing time may be selected based on the type name of the mobile terminal 20 or the like.

  FIG. 21A illustrates the time Tg1 (= Te1 + T2) when Te1> T1. When Te1> T1, the second mobile terminal 20B completes the data conversion after moving to an area where ad hoc communication with the first mobile terminal 20A is possible, and starts transmitting the data 50B.

  FIG. 21B illustrates time Tg1 (= T1 + T2) when T1> Te1. When T1> Te1, the second mobile terminal 20B completes the data conversion before moving to an area capable of ad hoc communication with the first mobile terminal 20A, and moves to an area capable of ad hoc communication with the first mobile terminal 20A. After moving, transmission of data 50B is started.

When the conversion from the data 50E to the data 50B is performed by the first mobile terminal 20A, the time Tg2 at which the data conversion and transmission is completed is a time T1 + T2 required to complete the data transmission, as illustrated in Equation (5). It can be obtained by adding the time Te2 required for data conversion. The time Tg2 is an example of an estimated time until the first transmission is completed.
Tg2 = (T1 + T2) + Te2 (5)
The time Te2 can be acquired in the same manner as the time Te1.

  FIG. 21C illustrates time Tg2 (= T1 + T2 + Te2). When the first mobile terminal 20A converts the data 50E into the data 50B, the data conversion is started after the transmission of the data 50E is completed. The server 10 can include, for example, the response information 50C with an instruction as to whether the conversion from the data 50E to the data 50B is performed by the first mobile terminal 20A or the second mobile terminal 20B. When the second mobile terminal 20B performs conversion from the data 50E to the data 50B, the server 10 transmits response information 50C to the second mobile terminal 20B instead of the first mobile terminal 20A. When the second mobile terminal 20B performs the conversion from the data 50E to the data 50B, the server 10 instructs the second mobile terminal 20B to perform the data conversion and the program name of the processing execution program used for the data conversion (and exists). Processing options) may be sent.

  In the above description, the example in which the server 10 transmits the program name of the processing execution program for converting the data 50E to the data 50B to the first mobile terminal 20A or the second mobile terminal 20B has been described. It is not limited to. For example, the first mobile terminal 20A and the second mobile terminal 20B may acquire the program name of the process execution program from the data conversion management table 37A, the data correspondence table 38A, and the conversion process table 39A. The server 10 can transmit the data conversion management table 37A, the data correspondence table 38A, and the conversion processing table 39A in advance to the first mobile terminal 20A and the second mobile terminal 20B. If time Tg1 or time Tg2 exceeds a predetermined allowable time, server 10 may transmit data 50B to first mobile terminal 20A using mobile phone communication.

  Next, a case where there are a plurality of candidates for the second mobile terminal 20B, which is an example of the selected mobile terminal candidate, will be described. The mobile terminal 20 that has data 50B and is predicted to be present at a position that can be transmitted to the first mobile terminal 20A is set as a candidate A, and possesses data 50E and is present at a position that can be transmitted to the first mobile terminal 20B. A mobile terminal 20 that is predicted to perform is set as a candidate B. When there are at least two second mobile terminals 20B candidates that are candidates A or B, a predicted transmission time that is a predicted time until transmission is completed among at least two second mobile terminals 20B candidates. The shorter mobile terminal 20 is selected as the second mobile terminal 20B.

  Since candidate A performs the third transmission for transmitting data 50B without conversion, the prediction time of candidate A is T1 + T2, and the prediction time of candidate B is min (Tg1, Tg2) as described above. There may also be a candidate C that is the mobile terminal 20 that possesses the data 50B and the data 50E and is predicted to be present at a position that can be transmitted to the first mobile terminal 20A. When candidate C exists, the prediction time of candidate C is min (T1 + T2, Tg1, Tg2). When candidate B or candidate C is selected as the second mobile terminal 20B, candidate B or candidate C performs transmission with the shortest prediction time among possible transmissions.

  In addition, when the predicted time until the transmission is completed when the server 10 transmits the data 50B by mobile phone communication is shorter than the predicted time of the selected second mobile terminal 20B, the server 10 transmits the data by mobile phone communication. 50B may be transmitted. Further, even when the predicted time of the selected second mobile terminal 20B exceeds a predetermined allowable time, the server 10 may transmit the data 50B by mobile phone communication.

  There may be a case where the first mobile terminal 20A or the second mobile terminal 20B that may receive an instruction to convert the data 50E into the data 50B does not have a processing execution program used for data conversion. In this case, the server 10 transmits the process execution program to the first mobile terminal 20A or the second mobile terminal 20B, which is a mobile terminal that converts data. As described above, when there are at least two candidates for the second mobile terminal 20B, the time for transmitting the processing execution program from the server 10 is added to the predicted time, and the mobile terminal 20 having a shorter predicted time is moved to the second mobile terminal 20B. The terminal 20B is determined.

  For example, the data management table 36A in FIG. 3B may include information regarding which mobile terminal has which process execution program. The server 10 acquires the process ID from the data conversion management table 37A of FIG. 18A based on the data names of the data 50B and 50E, and based on the process ID, the program of the process execution program from the conversion process table 39A of FIG. 18C. Get the name. Next, the server 10 acquires a data ID from the data correspondence table 38A of FIG. 18B based on the program name. Next, the server 10 acquires the terminal ID of the mobile terminal having a processing execution program for converting the data 50E into the data 50B from the data management table 36A based on the data ID.

  In addition, although the data conversion management table 37A, the data correspondence table 38A, and the conversion processing table 39A have been described with respect to the example in which the data names are associated with each other, the present embodiment is not limited to this. Only the data ID may be used without using the data name.

  For example, as illustrated in the data conversion management table 37B of FIG. 18D, the data conversion management table 37A may include data IDs of input data and output data instead of data names of input data and output data. Further, the data correspondence table 38A may not include a data name, and the program name of the process execution program in the conversion process table 39A may be replaced with the data ID of the process execution program.

  In the present embodiment, a hash value is used together with a data ID or a data name in order to check the integrity of data 50E that is convertible data. This is to prevent erroneously identifying data that has been intentionally or unintentionally altered by using a hash value. However, the present embodiment is not limited to this, and it may be checked whether the mobile terminal 20 has the data 50E by using the data ID or the data name without using the hash value.

  Further, instead of using only the data ID to identify the data 50B as the request data, the request is made by using at least one of the data name and the hash value instead of or in addition to the data ID. Data integrity may be checked to identify the data.

  Note that at least two of the position management table 35A, the data management table 36A, the data conversion management table 37A, the data correspondence table 38A, and the conversion processing table 39A may be combined into one table. Each may be divided into at least two tables. Alternatively, at least two of the divided tables may be combined into one table.

  In addition, the flowchart of FIG.5, FIG.8, FIG.10, FIG.14, FIG.17, FIG.20A and FIG.20B is an illustration, The order of each step may be changed.

  The present embodiment may be applied to any one of the first to fifth embodiments or any combination of the first to fifth embodiments. That is, the request data of the first to fifth embodiments may be replaced with convertible data and combined with the sixth embodiment.

  In the present embodiment, the reception unit 11 receives the data transmission request and the location information of the mobile terminal that has made the data transmission request from each of the plurality of mobile terminals each capable of executing a plurality of different communications. Received by any of the second communications. The plurality of different communications includes a first communication and a second communication capable of communication within a predetermined area. The control unit 12 possesses at least one of request data requested by the data transmission request and convertible data that can be converted into the request data, and can perform the second communication with the requesting mobile terminal that has transmitted the data transmission request. Control is performed to select a mobile terminal predicted to exist in the area as the selected mobile terminal. The selection is controlled based on the data transmission request received by the receiving unit 11, the location management information in which the received location information is stored, and the data management information in which information indicating data held by the mobile terminal is registered. The transmission unit 13 sends a transmission instruction for instructing to transmit one of the request data and the convertible data from the selected selected mobile terminal to the requesting mobile terminal through the second communication by either the first communication or the second communication. Transmit directly or relay to selected mobile terminal.

  As described above, in the present embodiment, even when the mobile terminals do not exist within the area where short-range communication is possible, the location management information and the data management information including the location information of each of the plurality of mobile terminals received by the first communication The selected mobile terminal is selected based on. Accordingly, it is possible to reduce the amount of communication between the information processing apparatus and the requesting mobile terminal.

  Further, even in the case where it is not predicted that there is a mobile terminal possessing the requested data in an area where short-range communication is possible with the requesting mobile terminal, in the present embodiment, conversion into the area is performed. It is only necessary to predict that there is a mobile terminal possessing possible data. Therefore, it is possible to further reduce the possibility that the requesting mobile terminal cannot acquire the request data.

  Regarding the above embodiment, the following additional notes are disclosed.

(Appendix 1)
Data transmission request and data transmission request from each of a plurality of mobile terminals each capable of executing a plurality of different communications including a first communication and a second communication capable of communication within a predetermined area Receiving the location information of the terminal by either the first communication or the second communication;
Request data requested by the data transmission request based on the received data transmission request, location management information storing the received location information, and data management information in which information indicating data held by the mobile terminal is registered And at least one of the convertible data that can be converted into the request data, and is predicted to exist in an area where the second communication can be performed with the requesting mobile terminal that has transmitted the data transmission request. Select the mobile terminal to be selected as the selected mobile terminal,
A transmission instruction instructing the selected mobile terminal to transmit one of the request data and the convertible data by the second communication from the selected mobile terminal is selected from either the first communication or the second communication. Or directly or relayed to the selected mobile terminal,
Communication control method.
(Appendix 2)
The second communication has a lower communication cost than the first communication.
The communication control method according to attachment 1.
(Appendix 3)
The second communication has a narrow communication area compared to the first communication.
The communication control method according to Supplementary Note 1 or Supplementary Note 2.
(Appendix 4)
Select multiple selected mobile devices,
An instruction to transmit each of the divided data obtained by dividing the data to be transmitted from each of the plurality of selected mobile terminals to the requesting mobile terminal is transmitted in addition to the transmission instruction;
The communication control method according to any one of supplementary notes 1 to 3.
(Appendix 5)
When the total amount of the divided data transmitted by each of the plurality of selected mobile terminals is smaller than the data amount of the transmitted data, the remaining portion of the data transmitted by the first communication is transmitted to the requesting mobile terminal. ,
The communication control method according to attachment 4.
(Appendix 6)
If it is predicted that transmission to the requesting mobile terminal will not be completed within a predetermined time, a portion of data to be transmitted that has not been transmitted is transmitted to the requesting mobile terminal by the first communication.
The communication control method according to any one of appendix 1 to appendix 4.
(Appendix 7)
When it is predicted that there is no mobile terminal that possesses at least one of the request data and the convertible data in an area where the second communication can be performed with the request mobile terminal, the request mobile terminal Transmitting a movement instruction instructing to move to a region where the second communication is possible with a mobile terminal having at least one of request data and the convertible data;
The communication control method according to any one of supplementary notes 1 to 5.
(Appendix 8)
If a response indicating acceptance of the movement instruction is received from the requesting mobile terminal, update the location management information of the requesting mobile terminal that made the response indicating approval;
The communication control method according to attachment 7.
(Appendix 9)
A mobile terminal capable of wireless communication with a small number of mobile terminals that relay communication or share communication resources is preferentially selected as a selected mobile terminal.
The communication control method according to any one of appendix 1 to appendix 8.
(Appendix 10)
If the selected mobile terminal is the mobile terminal that possesses the convertible data and does not possess the request data, the convertible data is transmitted and the convertible data received by the request mobile terminal is the request data. A first transmission to be converted into a second transmission that converts the convertible data into the request data and transmits the second data.
The communication control method according to any one of supplementary notes 1 to 9.
(Appendix 11)
Of the first transmission and the second transmission, the transmission with the shorter estimated time until the transmission by the second communication is completed is performed.
The communication control method according to attachment 10.
(Appendix 12)
In the area where the second communication is possible with the requesting mobile terminal,
A first selected mobile terminal candidate having the convertible data and not having the request data; a second selected mobile terminal candidate having both the convertible data and the request data; having the request data and the conversion When there are a plurality of selected mobile terminal candidates including any of the third selected mobile terminal candidates that do not possess possible data,
A first transmission for transmitting the convertible data and converting the convertible data received by the requesting mobile terminal into the request data, a second transmission for converting the convertible data into the request data and transmitting The selected mobile terminal candidate that performs transmission with the shortest estimated time until transmission by the second communication is completed among the transmissions by the second communication which is the third transmission for transmitting the request data without the selection data. Select and perform the transmission with the shortest estimated time,
The communication control method according to any one of supplementary notes 1 to 9.
(Appendix 13)
When the predicted time until the transmission by the second communication is completed is predicted to exceed a predetermined allowable time, the request data is transmitted by the first communication.
The communication control method according to any one of appendix 1 to appendix 12.
(Appendix 14)
The estimated time until transmission by the second communication is completed is the time from when the transmission instruction is transmitted until the conversion to the request data is completed when the convertible data is transmitted, and the request data Is transmitted from the transmission instruction until the transmission of the request data converted from the convertible data or the request data not converted is completed.
The communication control method according to any one of supplementary notes 1 to 13.
(Appendix 15)
Data transmission request and data transmission request from each of a plurality of mobile terminals each capable of executing a plurality of different communications including a first communication and a second communication capable of communication within a predetermined area Receiving the location information of the terminal by either the first communication or the second communication;
Request data requested by the data transmission request based on the received data transmission request, location management information storing the received location information, and data management information in which information indicating data held by the mobile terminal is registered And at least one of the convertible data that can be converted into the request data, and is predicted to exist in an area where the second communication can be performed with the requesting mobile terminal that has transmitted the data transmission request. Select the mobile terminal to be selected as the selected mobile terminal,
A transmission instruction instructing the selected mobile terminal to transmit one of the request data and the convertible data by the second communication from the selected mobile terminal is selected from either the first communication or the second communication. Or directly or relayed to the selected mobile terminal,
A program for causing a processor to execute communication control processing.
(Appendix 16)
Data transmission request and data transmission request from each of a plurality of mobile terminals each capable of executing a plurality of different communications including a first communication and a second communication capable of communication within a predetermined area A receiving unit for receiving terminal position information by one of the first communication and the second communication;
Requested by the data transmission request based on the data transmission request received by the receiving unit, the location management information in which the received location information is stored, and the data management information in which information indicating data held by the mobile terminal is registered Possessing at least one of the requested request data and convertible data that can be converted into the request data, and exists in an area where the second communication can be performed with the requesting mobile terminal that has transmitted the data transmission request A control unit that performs control to select a mobile terminal that is predicted to be selected as a selected mobile terminal;
A transmission instruction instructing the selected mobile terminal to transmit one of the request data and the convertible data by the second communication from the selected mobile terminal is selected from either the first communication or the second communication. A transmitter for transmitting directly or relayed to the selected mobile terminal,
An information processing apparatus including:

10 server 11 receiving unit 12 control unit 13 transmitting unit 20 mobile terminal 21 receiving unit 22 control unit 23 transmitting unit 31 CPU
32 Primary storage unit 33 Secondary storage unit 39 Communication unit 51 CPU
52 Primary storage unit 53 Secondary storage unit 58 Long-distance communication unit 61 Short-distance communication unit

Claims (16)

Data transmission request and data transmission request from each of a plurality of mobile terminals each capable of executing a plurality of different communications including a first communication and a second communication capable of communication within a predetermined area Receiving the location information of the terminal by either the first communication or the second communication;
Request data requested by the data transmission request based on the received data transmission request, location management information storing the received location information, and data management information in which information indicating data held by the mobile terminal is registered And at least one of the convertible data that can be converted into the request data, and is predicted to exist in an area where the second communication can be performed with the requesting mobile terminal that has transmitted the data transmission request. Select the mobile terminal to be selected as the selected mobile terminal,
A transmission instruction instructing the selected mobile terminal to transmit one of the request data and the convertible data by the second communication from the selected mobile terminal is selected from either the first communication or the second communication. Or directly or relayed to the selected mobile terminal,
Communication control method. The second communication has a lower communication cost than the first communication.
The communication control method according to claim 1. The second communication has a narrow communication area compared to the first communication.
The communication control method according to claim 1 or 2. Select multiple selected mobile devices,
An instruction to transmit each of the divided data obtained by dividing the data to be transmitted from each of the plurality of selected mobile terminals to the requesting mobile terminal is transmitted in addition to the transmission instruction;
The communication control method according to claim 1. When the total amount of the divided data transmitted by each of the plurality of selected mobile terminals is smaller than the data amount of the transmitted data, the remaining portion of the data transmitted by the first communication is transmitted to the requesting mobile terminal. ,
The communication control method according to claim 4. If it is predicted that transmission to the requesting mobile terminal will not be completed within a predetermined time, a portion of data to be transmitted that has not been transmitted is transmitted to the requesting mobile terminal by the first communication.
The communication control method according to any one of claims 1 to 4. When it is predicted that there is no mobile terminal that possesses at least one of the request data and the convertible data in an area where the second communication can be performed with the request mobile terminal, the request mobile terminal Transmitting a movement instruction instructing to move to a region where the second communication is possible with a mobile terminal having at least one of request data and the convertible data;
The communication control method according to any one of claims 1 to 5. If a response indicating acceptance of the movement instruction is received from the requesting mobile terminal, update the location management information of the requesting mobile terminal that made the response indicating approval;
The communication control method according to claim 7. A mobile terminal capable of wireless communication with a small number of mobile terminals that relay communication or share communication resources is preferentially selected as a selected mobile terminal.
The communication control method according to any one of claims 1 to 8. If the selected mobile terminal is the mobile terminal that possesses the convertible data and does not possess the request data, the convertible data is transmitted and the convertible data received by the request mobile terminal is the request data. A first transmission to be converted into a second transmission that converts the convertible data into the request data and transmits the second data.
The communication control method according to any one of claims 1 to 9. Of the first transmission and the second transmission, the transmission with the shorter estimated time until the transmission by the second communication is completed is performed.
The communication control method according to claim 10. In the area where the second communication is possible with the requesting mobile terminal,
A first selected mobile terminal candidate having the convertible data and not having the request data; a second selected mobile terminal candidate having both the convertible data and the request data; having the request data and the conversion When there are a plurality of selected mobile terminal candidates including any of the third selected mobile terminal candidates that do not possess possible data,
A first transmission for transmitting the convertible data and converting the convertible data received by the requesting mobile terminal into the request data, a second transmission for converting the convertible data into the request data and transmitting The selected mobile terminal candidate that performs transmission with the shortest estimated time until transmission by the second communication is completed among the transmissions by the second communication which is the third transmission for transmitting the request data without the selection data. Select and perform the transmission with the shortest estimated time,
The communication control method according to any one of claims 1 to 9. When the predicted time until the transmission by the second communication is completed is predicted to exceed a predetermined allowable time, the request data is transmitted by the first communication.
The communication control method according to any one of claims 1 to 12. The estimated time until transmission by the second communication is completed is the time from when the transmission instruction is transmitted until the conversion to the request data is completed when the convertible data is transmitted, and the request data Is transmitted from the transmission instruction until the transmission of the request data converted from the convertible data or the request data not converted is completed.
The communication control method according to any one of claims 1 to 13. Data transmission request and data transmission request from each of a plurality of mobile terminals each capable of executing a plurality of different communications including a first communication and a second communication capable of communication within a predetermined area Receiving the location information of the terminal by either the first communication or the second communication;
Request data requested by the data transmission request based on the received data transmission request, location management information storing the received location information, and data management information in which information indicating data held by the mobile terminal is registered And at least one of the convertible data that can be converted into the request data, and is predicted to exist in an area where the second communication can be performed with the requesting mobile terminal that has transmitted the data transmission request. Select the mobile terminal to be selected as the selected mobile terminal,
A transmission instruction instructing the selected mobile terminal to transmit one of the request data and the convertible data by the second communication from the selected mobile terminal is selected from either the first communication or the second communication. Or directly or relayed to the selected mobile terminal,
A program for causing a processor to execute communication control processing. Data transmission request and data transmission request from each of a plurality of mobile terminals each capable of executing a plurality of different communications including a first communication and a second communication capable of communication within a predetermined area A receiving unit for receiving terminal position information by one of the first communication and the second communication;
Requested by the data transmission request based on a data transmission request received by the receiving unit, location management information storing the received location information, and data management information in which information indicating data possessed by the mobile terminal is registered. Possessing request data and convertible data that can be converted into the request data, and it is predicted that the second communication with the requesting mobile terminal that has transmitted the data transmission request exists in an area where the second communication is possible. A control unit that performs control to select a mobile terminal as a selected mobile terminal;
A transmission instruction instructing the selected mobile terminal to transmit one of the request data and the convertible data by the second communication from the selected mobile terminal is selected from either the first communication or the second communication. A transmitter for transmitting directly or relayed to the selected mobile terminal,
An information processing apparatus including: