JP2019009595A - Aggregation device, aggregation method and program - Google Patents

Abstract

To provide an aggregation device which distributes a traffic load in a base station, which accommodates a plurality of terminals, enabling data transfer according to the setting of each terminal.SOLUTION: The aggregation device includes: radio means which radio communicates with at least one terminal and a base station; storage means in which data received from the terminal is stored; and control means which controls the radio means to acquire from the radio means the data received from the terminal, aggregate the acquired data terminal-by-terminal to store into the storage means, and share set information for transmitting data of each terminal to the base station with the base station, to transmit to the base station the aggregated data, in which the data of each terminal stored in the storage means is aggregated, according to a data transfer request based on the set information.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an aggregation device, an aggregation method, and a program for relaying transmission data from a terminal to a base station.

  With the spread of IoT (Internet Of Things), the number of terminals (hereinafter referred to as IoT terminals) that wirelessly transmit information acquired by sensors or the like is expected to increase. By the way, a base station apparatus (hereinafter referred to as a base station) that communicates with a terminal has a limit on the number of terminals that can be accommodated. Further, in the case of a configuration in which a plurality of IoT terminals and a base station are directly connected, the base station may not be able to accommodate the terminals to be accommodated. Further, the increase in radio resource allocation to the IoT terminal may reduce the throughput of a terminal that desires to provide high throughput.

  Patent Literature 1 discloses a relay device that relays information received from a wireless communication device to a base station. The apparatus of Patent Document 1 stores information received from a plurality of MTC (Machine Type Communications) terminals in a storage unit. The apparatus of Patent Literature 1 aggregates information stored in the storage unit and transmits it to the base station based on the allowable delay time and the number of information of information to be relayed.

  Patent Document 2 discloses a base station that functions as a relay base station by transmitting traffic transmitted from an M2M (Machine to Machine) terminal to a donor base station. The base station of Patent Literature 2 collectively holds data transmitted by M2M terminals for each individual M2M terminal or for each of a plurality of M2M terminals. The base station disclosed in Patent Literature 2 aggregates a plurality of data and transmits the aggregated data to the donor base station when the time for retaining data elapses for a certain period of time or when the amount of retained data reaches a certain amount.

  Patent Document 3 discloses a wireless communication network that appropriately selects a frequency channel for performing wireless communication between a plurality of sensor terminals and a base station. Patent Document 3 discloses an example in which a relay station is installed between a sensor terminal and a base station. In the method of Patent Document 3, the sensor terminal transmits a communication quality measurement signal to the base station using a frequency channel different from the frequency channel that transmitted the sensor measurement data immediately after transmitting the sensor measurement data to the base station. . And in the method of patent document 3, wireless communication quality is measured in a sensor terminal or a base station, and a frequency channel is selected based on the measured wireless communication quality.

JP 2012-004987 A JP, 2006-005060, A JP2012-253652A

  The apparatus of Patent Literature 1 aggregates information transmitted by a plurality of MTC terminals and transmits the information to the base station. Therefore, according to the technique of Patent Document 1, the radio resources of the base station are not allocated to individual radio communication apparatuses, but are allocated to relay apparatuses. That is, according to the method of Patent Document 1, it is possible to suppress a decrease in throughput in communication between a terminal and a base station that wants to provide high throughput, based on the allowable delay time of information and the number of information. However, the technique disclosed in Patent Document 1 has a problem in that appropriate data transfer cannot be set for each MTC terminal depending on the use of each MTC terminal.

  The base station of Patent Literature 2 holds data transmitted from the M2M terminal in the relay base station and then transmits the data to the donor base station. Therefore, according to the technique of Patent Document 2, it is possible to suppress a decrease in throughput in communication between a terminal and a base station that wants to provide high throughput based on the time for retaining data and the amount of data to be retained. However, the technique of Patent Document 2 has a problem that it cannot be controlled so that only the M2M terminal can be accommodated in the relay base station in response to a request from the donor base station.

  In the network of Patent Document 3, a frequency channel is selected based on wireless communication quality. Therefore, according to the method of Patent Document 3, it is possible to select a frequency channel suitable for wireless communication between the sensor terminal and the base station according to a change in the communication environment. However, the method of Patent Document 3 has a problem in that the load between the terminal and the base station increases because the communication quality measurement signal is transmitted each time the sensor terminal transmits the sensor measurement data. .

  In order to solve the above-described problem, an object of the present invention is to provide an aggregation device that distributes the traffic load in a base station that accommodates a plurality of terminals and enables data transfer according to the setting for each terminal. It is in.

  An aggregation device according to one aspect of the present invention acquires wireless means for wirelessly communicating with at least one terminal and a base station, storage means for storing data received from the terminal, and data received from the terminal from the wireless means, The acquired data is aggregated for each terminal and stored in the storage means, and setting information for transmitting the data for each terminal to the base station is shared with the base station, and in response to a data transfer request based on the setting information And control means for controlling the wireless means so as to transmit the aggregated data obtained by aggregating the data for each terminal stored in the storage means to the base station.

  In the communication method of one embodiment of the present invention, wireless communication is performed with at least one terminal and a base station, data received from the terminal is stored in the storage unit, and data received from the terminal is aggregated and stored in the storage unit for each terminal. And the setting information for transmitting the data for each terminal to the base station is shared with the base station, and the data for each terminal stored in the storage means is aggregated according to the data transfer request based on the setting information. Send data to the base station.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the aggregation apparatus which distributes the traffic load in the base station which accommodates a some terminal, and enables the data transfer according to the setting for every terminal.

It is a conceptual diagram which shows the structure of the communication system which concerns on the 1st Embodiment of this invention. It is a conceptual diagram which shows another connection state in the structure of the communication system which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the terminal of the communication system which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the aggregation apparatus of the communication system which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the base station of the communication system which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the server of the communication system which concerns on the 1st Embodiment of this invention. It is a figure for demonstrating operation | movement of the communication system which concerns on the 1st Embodiment of this invention. It is a figure for demonstrating operation | movement of the communication system which concerns on the 1st Embodiment of this invention. It is a conceptual diagram which shows the structure of the communication system which concerns on the 2nd Embodiment of this invention. It is a figure for demonstrating operation | movement of the communication system which concerns on the 2nd Embodiment of this invention. It is a figure for demonstrating operation | movement of the communication system which concerns on the 2nd Embodiment of this invention. It is a figure for demonstrating operation | movement of the communication system which concerns on the 2nd Embodiment of this invention. It is a figure for demonstrating operation | movement of the communication system which concerns on the 2nd Embodiment of this invention. It is a block diagram which shows the hardware structural example of the control system which comprises the communication system which concerns on each embodiment of this invention.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing. However, the preferred embodiments described below are technically preferable for carrying out the present invention, but the scope of the invention is not limited to the following. In addition, in all the drawings used for description of the following embodiments, the same reference numerals are given to the same parts unless there is a particular reason. In the following embodiments, repeated description of similar configurations and operations may be omitted. Moreover, the direction of the arrow in the drawing shows an example, and does not limit the direction of the signal between the blocks.

(First embodiment)
First, a communication system according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a conceptual diagram illustrating a configuration of a communication system 1 according to the present embodiment.

  The communication system 1 includes at least one terminal 10-1 to N, an aggregation device 20, a base station 30, and a server 50 (N is an integer of 2 or more). The communication system 1 may be configured to include at least one terminal 10-1 to 10 -N and the aggregation device 20.

  FIG. 1 shows a connection state when the aggregation device 20 is accommodated in the base station 30. FIG. 2 shows a connection state when the aggregation device 20 is not accommodated in the base station 30. The aggregation device 20 is accommodated in the base station 30 in response to a connection request from the base station 30. The aggregation device 20 may transmit a connection request to the base station 30.

  Terminals 10-1 to 10-N are communicably connected to aggregation device 20 or base station 30. For example, the terminals 10-1 to N are connected to the aggregation device 20 or the base station 30 by wireless communication. Below, when not distinguishing each of terminal 10-1-N, it describes as the terminal 10. FIG.

  When the aggregation device 20 is accommodated in the base station 30, the terminal 10 is connected to the aggregation device 20 (FIG. 1). On the other hand, when the aggregation device 20 is not accommodated in the base station 30, the plurality of terminals 10 are connected to the base station 30 (FIG. 2). In the present embodiment, a case where the aggregation device 20 is accommodated in the base station 30 (FIG. 1) will be mainly described.

  The terminal 10 acquires data that each terminal 10 should acquire. For example, the terminal 10 is realized as an IoT terminal that transmits data acquired by a sensor. Note that the terminal 10 may be realized by a device other than the IoT terminal (hereinafter referred to as a non-IoT terminal) such as a smartphone, a tablet, a laptop computer, and a mobile phone. When described as the terminal 10 in the present embodiment, the terminal 10 includes an IoT terminal and a non-IoT terminal.

  The terminal 10 transmits the acquired data to the aggregation device 20 at an arbitrary transmission timing according to the application. When the terminal 10 starts a series of data transmissions, the terminal 10 transmits information related to its own device to the aggregation device 20 together with the connection request. Information transmitted from the terminal 10 to the aggregation device includes the data transfer interval and identification information of each terminal 10. The data transfer interval is not an interval at which data is transmitted from the terminal 10 to the aggregation device 20, but data for each terminal 10 aggregated by the aggregation device 20 (hereinafter referred to as aggregation data) is transferred from the aggregation device 20 to the base station 30. It is an interval to do. The identification information is information for identifying each terminal 10.

  When the terminal 10 receives a connection response to the connection request transmitted by the terminal 10 from the aggregation device 20, the terminal 10 starts to transmit a series of data to the aggregation device 20 that is a transmission source of the connection response. The timing for transmitting data from the terminal 10 to the aggregation device 20 may be arbitrary. If the aggregation device 20 is not accommodated in the base station 30, the connection request for the terminal 10 is received by the base station 30, and a connection response is transmitted from the base station 30 to the terminal 10.

  The aggregation device 20 is accommodated in the base station 30 as one terminal in response to a connection request from the base station 30. For example, the aggregation device 20 is connected to the base station 30 by wireless communication. When the aggregation device 20 is accommodated by the base station, the aggregation device 20 transmits an identifier indicating that it is the aggregation device 20 to the base station 30. The aggregation device 20 accommodates a plurality of terminals 10 during the period accommodated in the base station 30. The aggregation device 20 aggregates and stores transmission data from each terminal 10 for each terminal 10. The aggregation device 20 may be configured to be connected to the base station 30 as one base station.

  The aggregation device 20 transmits a connection response in response to a connection request from each terminal 10, and accommodates the terminal 10 that is the transmission source of the connection request. Then, the aggregation device 20 transfers the setting information received from the terminal 10 to the base station 30. In the present embodiment, the data transfer interval is included in the setting information. The setting information is information including a setting for transmitting aggregated data for each terminal 10 to the base station 30. The setting information is shared between the aggregation device 20 and the base station 30. Note that the configuration information may be configured to be transmitted from the base station 30 to the aggregation device 20. Further, the aggregation device 20 may transmit the setting information to the base station 30 as a UL (Uplink) scheduling request.

  The aggregation device 20 receives data from the accommodated terminals 10 and aggregates and holds the received data for each terminal 10. The period during which the aggregation device 20 holds data is set based on the setting information for each terminal 10 that acquired the data.

  When the aggregation device 20 receives a data transfer request of any of the accommodated terminals 10 from the base station 30, the aggregation device 20 transfers the aggregated data obtained by aggregating the data of the terminals 10 to the base station 30. Then, the aggregation device 20 deletes the aggregation data transferred to the base station 30 from the own device.

  The base station 30 is connected to the aggregation device 20 and the core network 40. For example, the base station 30 is wirelessly connected to the aggregation device 20 and wired to the core network 40. The base station 30 transmits a connection request for accommodating the aggregation device 20 to the aggregation device 20. Further, when receiving the setting information for each terminal 10 from the aggregation device 20, the base station 30 transfers the received setting information to the server 50 configured in the core network 40. In the present embodiment, the data transfer interval is included in the setting information.

  The base station 30 sets whether or not the aggregation device 20 is accommodated. When the base station 30 accommodates the aggregation device 20, the base station 30 communicates with the aggregation device 20 without directly communicating with each terminal 10 (FIG. 1). On the other hand, when the aggregation device 20 is not accommodated, the base station 30 communicates directly with each terminal 10 (FIG. 2). 1 and 2 show a state in which all terminals 10 are connected to one of the aggregation device 20 and the base station 30, but any one of the terminals 10 is connected to the aggregation device 20. Any terminal 10 may be configured to be connected to the base station 30.

  Further, when receiving the data transfer request for each terminal 10 from the server 50, the base station 30 transmits the data transfer request for each terminal 10 to the aggregation device 20. When the base station 30 receives the aggregated data transmitted from the aggregation device 20 in response to the data transfer request, the base station 30 transfers the received aggregated data to the server 50.

  The server 50 is a cloud server configured inside the core network 40. The server 50 may be configured outside the core network 40. The server 50 may be a single server or a server configured by combining a plurality of resources.

  The server 50 receives setting information for each terminal 10 from the base station 30. The server 50 acquires the data transfer interval from the setting information for each terminal 10 and starts a data transfer timer for each terminal 10 in accordance with the acquired data transfer interval.

  When the data transfer timer expires, the server 50 transmits a data transfer request of the terminal 10 to the base station 30. The server 50 stores the aggregated data transferred in response to the data transfer request. The aggregated data stored in the server 50 is used by the own device or another system.

  The above is the description of the configuration of the communication system 1 of the present embodiment. Next, the terminal 10, the aggregation device 20, the base station 30, and the server 50 of the communication system 1 will be described with reference to the drawings.

[Terminal]
FIG. 3 is a block diagram illustrating a configuration example of the terminal 10. As illustrated in FIG. 3, the terminal 10 includes a data acquisition unit 11, a data processing unit 12, a storage unit 13, and a transmission / reception unit 14. The configuration of the terminal 10 in FIG. 3 is an example, and the configuration of the terminal 10 is not limited.

  The data acquisition unit 11 acquires data related to information to be acquired. For example, the data acquisition unit 11 acquires data by a sensor function. The data acquisition unit 11 outputs the acquired data to the data processing unit 12.

  For example, the data acquisition unit 11 acquires the temperature, humidity, atmospheric pressure, illuminance, and the like of the environment where the terminal 10 is installed. For example, the data acquisition unit 11 acquires vibration, inclination, position, angular velocity, and the like. In addition, for example, the data acquisition unit 11 acquires an image by an imaging function of the camera. The information acquired by the data acquisition unit 11 is not limited to the example given here.

  The data processing unit 12 receives data from the data acquisition unit 11. The data processing means 12 processes the input data and converts it into a format for transmission to the transmission destination. For example, the data processing unit 12 converts analog data acquired from the data acquisition unit 11 into digital data.

  The data processing unit 12 acquires from the storage unit 13 a data transfer interval for transmitting data transmitted by the own device from the aggregation device 20 to the base station 30. The data processing unit 12 outputs the connection request and the data transfer interval to the transmission / reception unit 14. In addition, when the data processing unit 12 starts a series of data transmission, the data processing unit 12 generates a connection request to the data transmission destination. The data processing unit 12 transmits the generated connection request and the data transfer interval to the transmission / reception unit 14 together.

  When the connection response from the transmission destination is obtained, the data processing unit 12 converts the data acquired by the data acquisition unit 11 into a transmission signal and outputs the transmission signal to the transmission / reception unit 14. For example, the data processing unit 12 converts the acquired analog data into digital data that can be wirelessly transmitted, and outputs the converted digital data to the transmission / reception unit 14 as a transmission signal. For example, the data processing means 12 may add additional information such as data acquisition time to the transmission signal.

  The storage unit 13 stores a data transfer interval when transferring the data of the own device from the aggregation device 20 to the base station 30. Further, the storage unit 13 may temporarily store data acquired by the data acquisition unit 11 or data processed by the data processing unit 12.

  The transmission / reception means 14 has a wireless communication function, and transmits a signal input from the data processing means 12 from an antenna (not shown). The transmission / reception unit 14 receives a signal transmitted from the aggregation device 20 or the base station 30. When the connection request and the data transfer interval are input from the data processing unit 12, the transmission / reception unit 14 transmits the input connection request and setting information to the transmission destination. In addition, when the transmission / reception unit 14 receives a connection response to the connection request, the transmission / reception unit 14 outputs the connection response to the data processing unit 12.

  In addition, when the transmission data is input from the data processing unit 12, the transmission / reception unit 14 transmits the input transmission data to the transmission destination. The transmission destination of the transmission / reception means 14 is the aggregation device 20 when the aggregation device 20 is accommodated in the base station 30 (FIG. 1), and the base station 30 when the aggregation device 20 is not accommodated in the base station 30. (FIG. 2). In the present embodiment, the transmission destination of the transmission / reception means 14 is set to the aggregation device 20 unless otherwise specified.

[Aggregator]
FIG. 4 is a block diagram illustrating a configuration example of the aggregation device 20. As shown in FIG. 4, the radio unit 21, the control unit 22, and the storage unit 23 are included. The configuration of the aggregation device 20 in FIG. 4 is an example, and the configuration of the aggregation device 20 is not limited.

  When the base station 30 accommodates the aggregation device 20, the wireless means 21 is connected to the terminal 10 and the base station 30 (FIG. 1). On the other hand, when the base station 30 does not accommodate the aggregation device 20, the wireless means 21 is not connected to the terminal 10 and the base station 30 (FIG. 2). In the present embodiment, the aggregation device 20 is accommodated in the base station 30 unless otherwise specified.

  When receiving the connection request from the base station 30, the wireless unit 21 outputs the received connection request to the control unit 22. When receiving a connection response transmission instruction from the control unit 22, the wireless unit 21 transmits the connection response to the base station 30. As a result, the aggregation device 20 is accommodated in the base station 30 and a connection between the aggregation device 20 and the base station 30 is established.

  Further, when receiving the connection request and the transfer data interval from any of the terminals 10, the wireless unit 21 outputs the received connection request and the transfer data interval to the control unit 22. When receiving a connection response transmission instruction from the control unit 22, the wireless unit 21 transmits a connection response to the terminal 10 that has transmitted the connection request. In addition, upon receiving a setting information transmission instruction including the transfer data interval from the control unit 22, the wireless unit 21 transmits the setting information to the base station 30. The wireless unit 21 may be configured to transfer the received transfer data interval to the base station 30 as setting information without receiving the determination of the control unit 22 when receiving the transfer data interval from the terminal 10. Good.

  Further, when receiving the transmission data from the accommodated terminal 10, the wireless unit 21 outputs the received transmission data to the control unit 22.

  In addition, when the wireless unit 21 receives a data transfer request of a specific terminal from the base station 30, the wireless unit 21 outputs the received data transfer request to the control unit 22. When the wireless unit 21 acquires aggregated data that is a response to the data transfer request from the control unit 22, the wireless unit 21 transmits the aggregated data to the base station 30.

  The control unit 22 executes control according to the signal received by the wireless unit 21. When the wireless unit 21 receives a connection request from the terminal 10 or the base station 30, the control unit 22 determines whether or not connection to the transmission source of the connection request is possible. When the control unit 22 determines that the connection request from the terminal 10 or the base station 30 may be connected, the control unit 22 transmits to the wireless unit 21 an instruction to transmit a connection response to the connection request transmission source. For example, the control unit 22 determines that the connection can be established when the connection request transmission source is registered in the accommodation device list (not shown) stored in the own device.

  Further, the control means 22 aggregates and stores the transmission data from the terminal 10 in the storage means 23 in association with the terminal 10. When the control means 22 receives a data transfer request for a specific terminal 10 from the wireless means 21, the control means 22 acquires the aggregated data of the terminal 10 from the storage means 23, and instructs the wireless means to transmit the acquired aggregated data to the base station 30. To 21. Further, the control unit 22 deletes the aggregated data transmitted to the base station 30 from the storage unit 23. Note that the aggregated data in the storage unit 23 may be deleted after receiving the aggregated data reception response from the base station 30.

  In the storage unit 23, the transmission data of the terminal 10 is collected and stored by the control unit 22. Data stored in the storage unit 23 is aggregated data in which data for each terminal 10 is aggregated. The aggregated data in the storage means 23 is stored by the control means 22 and deleted by the control means 22.

〔base station〕
FIG. 5 is a block diagram illustrating a configuration example of the base station 30. As shown in FIG. 5, the base station 30 includes a communication unit 31 and a control unit 32. Note that the configuration of the base station 30 in FIG. 5 is an example, and the configuration of the base station 30 is not limited.

  When accommodating the aggregation device 20, the communication unit 31 transmits a connection request to the aggregation device 20 in accordance with the control of the control unit 32. When the communication unit 31 receives a connection response to the connection request, the communication unit 31 outputs the received connection response to the control unit.

  The communication unit 31 receives a data transfer request from the server 50. When receiving the data transfer request, the communication unit 31 transmits the data transfer request to the aggregation device 20 under the control of the control unit 32. When the communication unit 31 receives the aggregated data corresponding to the data transfer request, the communication unit 31 transmits the aggregated data to the server 50 under the control of the control unit 32.

  The control unit 32 controls the communication unit 31 to transmit a connection request and a data transfer request to the aggregation device 20. In addition, when the communication unit 31 receives the aggregated data, the control unit 32 causes the aggregated data to be transferred to the server 50.

〔server〕
FIG. 6 is a block diagram illustrating a configuration example of the server 50. The server 50 is configured in the core network 40. As shown in FIG. 6, the server 50 includes a communication unit 51, a control unit 52, a timer 53, and a storage unit 54. The configuration of the server 50 in FIG. 5 is an example, and the configuration of the server 50 is not limited.

  When the communication unit 51 receives the setting information of the specific terminal 10 from the base station 30, the communication unit 51 outputs the setting information to the control unit 52. In addition, the communication unit 51 transmits a data transfer request for the specific terminal 10 to the base station 30 in accordance with the control from the control unit 52.

  When the control unit 52 acquires the setting information of the specific terminal 10 from the communication unit 51, the control unit 52 starts the timer 53 of the terminal 10. Further, when the timer 53 of a certain terminal 10 expires, the control unit 52 generates a data transfer request for the terminal 10 and outputs the generated data transfer request to the communication unit 51. The control means 52 manages the timer 53 for each terminal 10.

  When the control unit 52 acquires the aggregated data transmitted in response to the data transfer request for the specific terminal 10 from the communication unit 51, the control unit 52 stores the aggregated data in the storage unit 54. The control means 52 manages the data for each terminal 10 collectively.

  The timer 53 is a timer that expires in accordance with the data transfer interval set for each terminal 10. The timer 53 is started according to the control of the control means 52. The timer 53 notifies the control means 52 when the time corresponding to the data transfer interval of the corresponding terminal 10 has elapsed and the standby time has expired.

  The storage unit 54 stores aggregated data transmitted from the base station 30 for each terminal 10. The data stored in the storage unit 54 may be used by the server 50 itself or may be used by an external system.

(Operation)
Next, the operation of the communication system 1 of the present embodiment will be described with reference to the drawings. 7 and 8 are diagrams illustrating the relationship between the components when the communication system 1 operates. 7 and 8 are diagrams in which a continuous operation is divided due to space limitations. 7 and 8, an example in which two terminals 10 (terminal 10-1 and terminal 10-2) acquire data will be described. However, the communication system 1 according to the present embodiment includes three or more terminals. 10 may be included. In the following description, the terminal 10-1 is represented as terminal A, and the terminal 10-2 is represented as terminal B.

  In FIG. 7, first, the base station 30 transmits a connection request to the aggregation device 20 in order to accommodate the aggregation device 20 and establish a connection. The aggregation device 20 transmits a connection response to the base station 30 in response to a connection request from the base station. As a result, the connection between the aggregation device 20 and the base station 30 is established, and the connection between the terminal 10 and the aggregation device 20 becomes possible.

  In the example of FIG. 7, terminal A transmits a connection request first. At this time, in addition to the connection request, the terminal A transmits a data transfer interval corresponding to the use of data transmitted by the own device. Since the aggregation device 20 is accommodated in the base station 30, it receives a connection request from the terminal A. If the aggregation device 20 is not accommodated in the base station 30, the connection request and data transfer interval transmitted from the terminal A are received by the base station 30.

  When the aggregation device 20 receives the connection request from the terminal A, the aggregation device 20 transmits a connection response to the terminal A. Then, the aggregation device 20 transmits the setting information of the terminal A to the base station 30. Note that the setting information transmitted by the terminal A includes the data transfer interval of the terminal A.

  When the base station 30 receives the setting information of the terminal A, the base station 30 transfers the setting information of the terminal A to the server 50. And server 50 will start the timer of terminal A, if the setting information of terminal A is received. The timer of terminal A expires in accordance with the data transfer interval of terminal A.

  Similarly, terminal B also transmits a connection request. At this time, in addition to the connection request, the terminal B transmits a data transfer interval corresponding to the use of data transmitted by the own device. Since the aggregation device 20 is accommodated in the base station 30, it also receives a connection request from the terminal B.

  When the aggregation device 20 receives the connection request from the terminal B, the aggregation device 20 transmits a connection response to the terminal B. Then, the aggregation device 20 transmits the setting information of the terminal B to the base station 30. The setting information transmitted by terminal B also includes the data transfer interval of terminal B.

  When the base station 30 receives the setting information of the terminal B, the base station 30 transfers the setting information of the terminal B to the server 50. When the server 50 receives the setting information of the terminal B, the server 50 starts the timer of the terminal B. The timer of terminal B expires in accordance with the data transfer interval of terminal B.

  When receiving a connection response from the aggregation device 20, the terminal A transmits transmission data to the aggregation device 20 at the transmission timing of its own device. Similarly, when receiving a connection response from the aggregation device 20, the terminal B transmits transmission data to the aggregation device 20 at the transmission timing of the own device. The aggregation device 20 aggregates and stores the transmission data received from the terminals A and B for each terminal 10.

  Next, in FIG. 8, when the timer of terminal A expires, server 50 transmits a data transfer request of terminal A to base station 30. The base station 30 transfers the data transfer request from the server 50 to the aggregation device 20. The aggregation device 20 transmits the aggregated data of the terminal A to the base station 30 in response to the data transfer request received from the base station 30. In addition, when the aggregation device 20 transmits the aggregated data of the terminal A to the base station 30, the aggregated device 20 deletes the transmitted aggregated data. The base station 30 transfers the aggregated data received from the aggregation device 20 to the server 50. The aggregated data transferred to the server 50 is stored in the server 50 in association with the terminal A and used by the server 50 or another system.

  Similarly, when the timer of terminal B expires, server 50 transmits a data transfer request of terminal B to base station 30. The base station 30 transfers the data transfer request from the server 50 to the aggregation device 20. The aggregation device 20 transmits the aggregated data of the terminal B to the base station 30 in response to the data transfer request received from the base station 30. In addition, when the aggregation device 20 transmits the aggregated data of the terminal B to the base station 30, the aggregated data 20 is deleted. The base station 30 transfers the aggregated data received from the aggregation device 20 to the server 50. The aggregated data transferred to the server 50 is stored in the server 50 in association with the terminal and used by the server 50 or another system.

  As described above, in the communication system according to the present embodiment, when a plurality of terminals transmit data to the base station, the data is transmitted via the aggregation device. Therefore, the traffic load between the plurality of terminals and the base station is reduced. Can be reduced. Therefore, according to the communication system of this embodiment, efficient communication is possible. In addition, according to the communication system of the present embodiment, since the data transfer interval can be set according to the use of the terminal, efficient network operation becomes possible.

  In the communication system of the present embodiment, the aggregation device can be installed in a place where the radio wave environment is good even if the terminal is installed in a place where radio waves are difficult to reach such as in the ground. Therefore, according to this embodiment, the communication environment between a plurality of terminals and a base station can be improved.

(Second Embodiment)
Next, a communication system according to a second embodiment of the present invention will be described with reference to the drawings. The communication system of this embodiment is different from the communication system of the first embodiment in that a terminal connected to the aggregation device and a terminal connected to the base station are distinguished.

  FIG. 9 is a conceptual diagram showing a configuration of the communication system 2 of the present embodiment. The communication system 2 according to the present embodiment includes a terminal 101-1, terminal 101-2,... (Hereinafter referred to as a terminal 101) belonging to the terminal group A, a terminal 102-1, a terminal 102-2, (Hereinafter referred to as terminal 102). Although FIG. 9 shows two terminal groups, the number of terminal groups may be three or more. FIG. 9 illustrates an example in which the terminal group A is accommodated by the aggregation device 20 and the terminal group B is aggregated in the base station 30. For example, it can be configured such that an IoT terminal belongs to the terminal group A and a non-IoT terminal belongs to the terminal group B.

  The aggregation device 20 accommodates the terminal 101 and does not accommodate the terminal 102. Note that the base station 30 can communicate with the terminal 102 regardless of whether or not the aggregation device 20 is accommodated. For example, the aggregation device 20 can be set so as to accommodate the terminal 101 and not the terminal 102 with reference to the identifier of the terminal.

  In the example of FIG. 9, the terminal 101 is the accommodation target of the aggregation device 20, and the terminal 102 is the accommodation target of the base station 30. As a result, the aggregation device 20 is connected to the terminal 101 and is not connected to the terminal 102. For example, a device such as a smartphone or a mobile phone that requires real-time communication may be set to the terminal 102 that can communicate with the base station 30 in real time because data delay occurs when data is collected. Further, the terminal 101 that uses the acquired data in real time may be set so as not to be accommodated in the aggregation device 20 like the terminal 102. Note that the aggregation device 20 may be configured to temporarily accommodate the terminal 102 and to cancel the connection with the terminal 102 after referring to the identifier.

(Operation)
Next, the operation of the communication system 2 of the present embodiment will be described with reference to the drawings. 10-13 is a figure shown about the relationship between the components at the time of the communication system 2 operating. 10 to 13 relate to different examples.

[Identification information 1]
First, the operation of the communication system 2 shown in FIG. 10 will be described. FIG. 10 is an example in which when the terminal 101 (terminal group A) and the terminal 102 (terminal group B) transmit a connection request, identification information of the own apparatus is transmitted in addition to the data transfer interval. In the example of FIG. 10, the connection request transmitted by the terminal 101 (terminal group A) is received by the aggregation device 20 based on the identification information transmitted together with the connection request. On the other hand, the connection request transmitted from the terminal 102 (terminal group B) is not received by the aggregation device 20 but received by the base station 30 based on the identification information transmitted together with the connection request.

  In FIG. 10, first, the base station 30 transmits a connection request to the aggregation device 20 in order to accommodate the aggregation device 20 and establish a connection. The aggregation device 20 transmits a connection response to the base station 30 in response to a connection request from the base station 30. As a result, the connection between the aggregation device 20 and the base station 30 is established, and the connection between the terminal 101 and the aggregation device 20 becomes possible. In the example of FIG. 10, the terminal 102 is not included in the accommodation target of the aggregation device 20.

  In the example of FIG. 10, in addition to the connection request, the terminal 101 transmits a data transfer interval corresponding to the use of data transmitted by the own device and identification information of the own device. When receiving the connection request from the terminal 101, the aggregation device 20 transmits a connection response to the terminal 101. Then, the aggregation device 20 transmits the setting information of the terminal 101 to the base station 30. Note that the setting information transmitted by the terminal 101 includes a data transfer interval of the terminal 101 and identification information.

  When receiving the setting information of the terminal 101, the base station 30 transfers the setting information of the terminal 101 to the server 50. And server 50 will start timer 53 of terminal 101, if the setting information of terminal 101 is received. The timer 53 of the terminal 101 expires in accordance with the data transfer interval of the terminal 101.

  Similarly, in addition to the connection request, the terminal 102 transmits a data transfer interval corresponding to the use of data transmitted by the own device and identification information of the own device. At this time, the aggregation device 20 determines that the terminal 102 is not accommodated based on the identification information, and does not respond to the connection request from the terminal 102. On the other hand, the base station 30 determines that the terminal 102 is an accommodation target based on the identification information, and receives a connection request from the terminal 102. When receiving the connection request from the terminal 102, the base station 30 transmits a connection response to the terminal 102.

  When receiving the connection response from the aggregation device 20, the terminal 101 transmits transmission data to the aggregation device 20 at the transmission timing of the own device. The aggregation device 20 aggregates and stores the transmission data received from the terminal 101 for each terminal 101. The data storage of the terminal 101 by the aggregation device 20 is continued until the timer 53 running in the server 50 expires.

  On the other hand, when receiving a connection response from the base station 30, the terminal 102 transmits transmission data to the base station 30 at the transmission timing of its own device. The base station 30 transfers the transmission data received from the terminal 102 to the server 50. The server 50 stores the data transferred from the base station 30 in association with the terminal 102.

  Then, when the timer 53 of any terminal 101 expires in the server 50, the server 50 transmits a data transfer request for that terminal 101 to the base station 30. When receiving a data transfer request of a certain terminal 101 from the server 50, the base station 30 transmits the data transfer request of the terminal 101 to the aggregation device 20. In response to the data transfer request from the base station 30, the aggregation device 20 transmits the aggregated data of the data transfer target terminal 101 to the base station 30. The base station 30 transfers the aggregated data transmitted from the aggregation device 20 to the server 50. At this time, the aggregation device 20 deletes the transmitted data. The server 50 stores the aggregated data transferred from the base station 30 in association with the terminal 101.

  The above is the description regarding the operation of the communication system 2 shown in FIG. According to the operation shown in FIG. 10, it is possible to separately manage data that does not need to be transmitted to the server 50 in real time and data that should be transmitted to the server 50 in real time.

[Identification information 2]
Next, the operation of the communication system 2 shown in FIG. 11 will be described. FIG. 11 shows an example in which the terminal 101 (terminal group A) and the terminal 102 (terminal group B) transmit their own device identification information in addition to the data transfer interval when transmitting a connection request, as in FIG. is there. In the example of FIG. 11, the terminal 102 that should not be accommodated by the aggregation device 20 is temporarily accommodated, and the terminal 102 is disconnected from the accommodation target of the aggregation device 20 in response to a connection switching request from the base station 30. In FIG. 11, the operation up to the point where the data is stored will be described, and the description after the timer 53 has expired will be omitted.

  In FIG. 11, first, the base station 30 transmits a connection request to the aggregation device 20 in order to accommodate the aggregation device 20 and establish a connection. The aggregation device 20 transmits a connection response to the base station 30 in response to a connection request from the base station 30. As a result, the connection between the aggregation device 20 and the base station 30 is established, and the connection between the terminal 101 and the terminal 102 and the aggregation device 20 becomes possible.

  In the example of FIG. 11, in addition to the connection request, the terminal 101 transmits a data transfer interval corresponding to the use of data transmitted by the own device and identification information of the own device. When receiving the connection request from the terminal 101, the aggregation device 20 transmits a connection response to the terminal 101. Then, the aggregation device 20 transmits the setting information of the terminal 101 to the base station 30. Note that the setting information transmitted by the terminal 101 includes a data transfer interval of the terminal 101 and identification information.

  When receiving the setting information of the terminal 101, the base station 30 transfers the setting information of the terminal 101 to the server 50. And server 50 will start timer 53 of terminal 101, if the setting information of terminal 101 is received. The timer 53 of the terminal 101 expires in accordance with the data transfer interval of the terminal 101.

  Similarly, in addition to the connection request, the terminal 102 transmits a data transfer interval corresponding to the use of data transmitted by the own device and identification information of the own device. At this time, the aggregation device 20 receives a connection request from the terminal 102 in order to accommodate the terminal 102. When receiving the connection request from the terminal 102, the aggregation device 20 transmits a connection response to the terminal 102. Then, the aggregation device 20 transmits the setting information of the terminal 102 to the base station 30.

  When receiving the setting information of the terminal 102, the base station 30 transfers the setting information of the terminal 102 to the server 50. Upon receiving the setting information of the terminal 102, the server 50 determines that the terminal 102 is not the accommodation target of the aggregation device 20 from the identification information included in the setting information, and transmits a connection switching instruction for the terminal 102 to the base station 30. . When receiving a connection switching instruction from the server 50, the base station 30 transmits a connection switching request for the terminal 102 to the aggregation device 20. When receiving the connection switching request for the terminal 102 from the base station 30, the aggregation device 20 disconnects the connection with the terminal 102 and transmits a connection switching response to the base station 30. As a result, the terminal 102 is accommodated in the base station 30. When the terminal 102 is accommodated, a connection request may be transmitted from the base station 30 to the terminal 102.

  When receiving the connection response from the aggregation device 20, the terminal 101 transmits transmission data to the aggregation device 20 at the transmission timing of the own device. The aggregation device 20 aggregates and stores the transmission data received from the terminal 101 for each terminal 101. The data storage of the terminal 101 by the aggregation device 20 is continued until the timer 53 running in the server 50 expires. Since the operation after the timer 53 expires is the same as the procedure so far, description thereof is omitted.

  On the other hand, when receiving a connection response from the aggregation device 20, the terminal 102 transmits the transmission data at the transmission timing of the own device. However, the data transmitted from the terminal 102 is received by the base station 30. The base station 30 transfers transmission data from the terminal 102 to the server 50. The server 50 stores the transferred data in association with the terminal 102.

  This completes the description of the operation of the communication system 2 shown in FIG. According to the operation shown in FIG. 11, similarly to the example of FIG. 10, data that need not be transmitted to the server 50 in real time and data that should be transmitted to the server 50 in real time can be managed separately.

[Connection permission signal]
Next, the operation of the communication system 2 shown in FIG. 12 will be described. FIG. 12 is an example in which the aggregation device 20 transmits a connection permission signal that is detected by the terminal 101 to be accommodated but not detected by the terminal 102. In FIG. 12, the operation up to the storage of data will be described, and the description of the operation after the timer 53 has expired will be omitted.

  In FIG. 12, first, the base station 30 transmits a connection request to the aggregation device 20 in order to accommodate the aggregation device 20 and establish a connection. The aggregation device 20 transmits a connection response to the base station 30 in response to a connection request from the base station 30. As a result, the connection between the aggregation device 20 and the base station 30 is established, and the connection between the terminal 101 and the terminal 102 and the aggregation device 20 becomes possible.

  Then, the aggregation device 20 transmits a connection permission signal that is detected by the terminal 101 that is the accommodation target and not detected by the terminal 102 that is not the accommodation target.

  When receiving the connection request transmitted from the terminal 101 in response to the connection permission signal, the aggregation device 20 transmits a connection response to the terminal 101. Then, the aggregation device 20 transmits the setting information of the terminal 101 to the base station 30.

  When receiving the setting information of the terminal 101, the base station 30 transfers the setting information of the terminal 101 to the server 50. And server 50 will start timer 53 of terminal 101, if the setting information of terminal 101 is received. The timer 53 of the terminal 101 expires in accordance with the data transfer interval of the terminal 101.

  In addition to the connection request, the terminal 102 transmits a data transfer interval corresponding to the use of data transmitted by the own device. At this time, the base station 30 receives a connection request from the terminal 102. When receiving the connection request from the terminal 102, the base station 30 transmits a connection response to the terminal 102. Note that the base station 30 may transfer the setting information of the terminal 102 to the server 50.

  When receiving the connection response from the aggregation device 20, the terminal 101 transmits transmission data to the aggregation device 20 at the transmission timing of the own device. The aggregation device 20 aggregates and stores the transmission data received from the terminal 101 for each terminal 101. The data storage of the terminal 101 by the aggregation device 20 is continued until the timer 53 running in the server 50 expires. Since the operation after the timer 53 expires is the same as the procedure so far, description thereof is omitted.

  On the other hand, when receiving a connection response from the base station 30, the terminal 102 transmits transmission data at the transmission timing of the own device. However, the data transmitted from the terminal 102 is received by the base station 30. The base station 30 transfers transmission data from the terminal 102 to the server 50. The server 50 stores the transferred data in association with the terminal 102.

  This completes the description of the operation of the communication system 2 shown in FIG. According to the operation shown in FIG. 12, since the connection permission signal is transmitted from the aggregation device 20 to the terminal 101 to be accommodated, the aggregation device 20 does not have to be involved in data transmission / reception of the terminal 102 that is not the accommodation target. Therefore, the aggregation device 20 reduces the addition of data transmission / reception.

[DL signal]
Next, the operation of the communication system 2 shown in FIG. 13 will be described. FIG. 13 is an example in which the aggregation device 20 transmits a DL (Downlink) signal to the terminal 101 to be accommodated. The DL signal (also referred to as a downlink signal) includes information necessary for the mutual operation of the base station 30 and the terminal 101. In FIG. 13, the operation up to the point where data is stored will be described, and the description of the operation after the timer 53 has expired will be omitted.

  In FIG. 13, first, the base station 30 transmits a connection request to the aggregation device 20 in order to accommodate the aggregation device 20 and establish a connection. The aggregation device 20 transmits a connection response to the base station 30 in response to a connection request from the base station 30. As a result, the connection between the aggregation device 20 and the base station 30 is established, and the connection between the terminal 101 and the terminal 102 and the aggregation device 20 becomes possible.

  Then, the aggregation device 20 transmits a DL signal to the accommodation target terminal 101, triggered by reception of the connection request from the base station 30. At this time, the aggregation device 20 does not transmit a DL signal to the terminals 102 other than the accommodation target. The terminal 101 transmits a connection request and a data transfer interval to the aggregation device 20 according to the DL signal received from the aggregation device 20. When the aggregation device 20 receives the connection request and the data transfer interval transmitted from the terminal 101, the aggregation device 20 transmits a connection response to the terminal 101. Then, the aggregation device 20 transmits the setting information of the terminal 101 to the base station 30. The subsequent operations are the same as those in the example of FIG.

  The above is the description regarding the operation of the communication system 2 shown in FIG. According to the operation shown in FIG. 13, the DL signal is transmitted from the aggregation device 20 to the terminal 101 to be accommodated, so that the aggregation device 20 can selectively accommodate the terminal 101 to be accommodated. Therefore, the aggregation device 20 can easily manage the terminals 101 to be accommodated.

  In general, an IoT terminal that acquires and transmits data by a sensor or the like may be installed in a place where it is difficult to secure a power source. Therefore, the IoT terminal is required to save power and have a long life. For example, in an IoT terminal, power consumption can be suppressed by suppressing communication frequency using a communication technique such as eDRX (Extended Discontinuous Reception) or PSM (Power Saving Mode). For example, a low-rate communication method such as NB-IoT (Narrow Band-IoT) or Cat-M1 (Category-M1) is used for communication between the IoT terminal and the base station.

  As described above, in the IoT terminal, when the data capacity to be transmitted to the base station is increased by combining the communication technique with a low communication frequency and the low-rate communication method, the communication in one data transmission opportunity is performed. Traffic occupancy time can be longer. As a result, when a plurality of IoT terminals transmit data to the base station all at once, the communication traffic of the base station is occupied by low-rate data communication, and a failure occurs in communication between the non-IoT terminal and the base station. there is a possibility.

  Also, depending on the application, the IoT terminal may not need to transmit data to the base station in real time. In such a case, the IoT terminal may transmit data to the base station at a timing for each IoT terminal.

  In the present embodiment, data is transmitted from the IoT terminal to the aggregation device at a timing for each IoT terminal. In the present embodiment, the aggregation device aggregates data for each IoT terminal transmitted at the timing of each IoT terminal, and responds to a data transfer request based on setting information set for each IoT terminal. Send aggregated data to As a result, according to the present embodiment, transmission data of a plurality of IoT terminals can be efficiently transferred to the base station at an appropriate timing.

  In the present embodiment, it is not necessary to use a low-rate communication method between the aggregation device and the base station. Therefore, in the present embodiment, a high-rate communication method such as multi-level modulation or MIMO (Multiple-Input and Multiple-Output) can be used for communication between the aggregation device and the base station. Therefore, according to the present embodiment, high-speed data transmission is possible even when a large amount of data is transmitted from the aggregation device to the base station.

(hardware)
Here, the information processing device 90 in FIG. 14 is given as an example of the hardware configuration for realizing control processing and data processing of terminals, aggregation devices, base stations, and servers that constitute the communication system according to each embodiment of the present invention. I will explain. Note that the information processing apparatus 90 of FIG. 14 is a configuration example for realizing the processing of the communication system of each embodiment, and does not limit the scope of the present invention.

  As illustrated in FIG. 14, the information processing apparatus 90 includes a processor 91, a main storage device 92, an auxiliary storage device 93, an input / output interface 95, and a communication interface 96. In FIG. 14, the interface is abbreviated as I / F (Interface). The processor 91, the main storage device 92, the auxiliary storage device 93, the input / output interface 95, and the communication interface 96 are connected to each other via a bus 99 so that data communication is possible. The processor 91, the main storage device 92, the auxiliary storage device 93, and the input / output interface 95 are connected to a network such as the Internet or an intranet via a communication interface 96.

  The processor 91 expands the program stored in the auxiliary storage device 93 or the like in the main storage device 92, and executes the expanded program. In the present embodiment, a configuration using a software program installed in the information processing apparatus 90 may be adopted. The processor 91 executes processing of the communication system according to the present embodiment.

  The main storage device 92 has an area where the program is expanded. The main storage device 92 may be a volatile memory such as a DRAM (Dynamic Random Access Memory). Further, a nonvolatile memory such as an MRAM (Magnetoresistive Random Access Memory) may be configured and added as the main storage device 92.

  The auxiliary storage device 93 stores various data. The auxiliary storage device 93 is configured by a local disk such as a hard disk or a flash memory. Note that various data may be stored in the main storage device 92, and the auxiliary storage device 93 may be omitted.

  The input / output interface 95 is an interface for connecting the information processing apparatus 90 and peripheral devices. The communication interface 96 is an interface for connecting to an external system or device through a network such as the Internet or an intranet based on standards or specifications. The input / output interface 95 and the communication interface 96 may be shared as an interface connected to an external device.

  You may comprise the information processing apparatus 90 so that input devices, such as a keyboard, a mouse | mouth, and a touchscreen, may be connected as needed. These input devices are used for inputting information and settings. Note that when a touch panel is used as an input device, the display screen of the display device may be configured to also serve as an interface of the input device. Data communication between the processor 91 and the input device may be mediated by the input / output interface 95.

  Further, the information processing apparatus 90 may be provided with a display device for displaying information. When the display device is provided, the information processing device 90 is preferably provided with a display control device (not shown) for controlling display of the display device. The display device may be connected to the information processing apparatus 90 via the input / output interface 95.

  Further, the information processing apparatus 90 may be provided with a disk drive as necessary. The disk drive is connected to the bus 99. The disk drive mediates reading of data programs from the recording medium, writing of processing results of the information processing apparatus 90 to the recording medium, and the like between the processor 91 and a recording medium (program recording medium) (not shown). The recording medium can be realized by an optical recording medium such as a CD (Compact Disc) or a DVD (Digital Versatile Disc). The recording medium may be realized by a semiconductor recording medium such as a USB (Universal Serial Bus) memory and an SD (Secure Digital) card, a magnetic recording medium such as a flexible disk, and other recording media.

  The above is an example of the hardware configuration for enabling the communication system according to each embodiment of the present invention. Note that the hardware configuration in FIG. 14 is an example of a hardware configuration for executing the processing of the communication system according to each embodiment, and does not limit the scope of the present invention. In addition, a program that causes a computer to execute processing of the communication system according to each embodiment is also included in the scope of the present invention. Furthermore, a program recording medium recording the program according to each embodiment is also included in the scope of the present invention.

  Although the present invention has been described with reference to the embodiments, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1, 2 Communication system 10, 101, 102 Terminal 11 Data acquisition means 12 Data processing means 13 Storage means 14 Transmission / reception means 20 Aggregation apparatus 21 Wireless means 22 Control means 23 Storage means 30 Base station 31 Communication means 32 Control means 40 Core network 50 Server 51 Communication means 52 Control means 53 Timer 54 Storage means

Claims (10)

Wireless means for wireless communication with at least one terminal and a base station;
Storage means for storing data received from the terminal;
Setting information for acquiring the data received from the terminal from the wireless unit, consolidating the acquired data for each terminal, storing the data in the storage unit, and transmitting the data for each terminal to the base station Is shared with the base station, and in response to a data transfer request based on the setting information, aggregated data obtained by aggregating the data for each terminal stored in the storage unit is transmitted to the base station. And a control means for controlling the wireless means. The control means includes
The setting information including a data transfer interval for transferring the aggregated data for each terminal to the base station is shared with the base station, and the aggregated data is transmitted in response to the data transfer request transmitted based on the setting information. The aggregation apparatus according to claim 1, wherein the wireless unit is controlled to transmit a message to the base station. The control means includes
The wireless means is configured to share the setting information including identification information of the terminal with the base station, and transmit the aggregated data to the base station in response to the data transfer request transmitted based on the setting information. The aggregation apparatus according to claim 1, wherein the aggregation apparatus is controlled. The control means includes
The aggregation device according to claim 3, wherein a connection response is made to a connection request from the terminal to be accommodated based on the identification information, and a connection response is not made to a connection request from the terminal other than the accommodation target. . The control means includes
4. A connection response is made to a connection request from the terminal regardless of whether or not it is an accommodation object, and the connection with the terminal that is not an accommodation object is disconnected in response to a connection switching request based on the identification information. Or the aggregation apparatus of 4. The control means includes
A connection permission signal that is detected by the terminal to be accommodated but not detected by the terminals other than the accommodation target is transmitted, and a connection response is transmitted to the terminal that has transmitted a connection request in response to the connection permission signal. The aggregation device according to claim 1, wherein the radio unit is controlled at a time. The control means includes
A downlink request is transmitted to the terminal to be accommodated with a connection request from the base station as a trigger, and a connection response is transmitted to the terminal that has transmitted a connection request according to the downlink signal. 6. The aggregation apparatus according to claim 1, wherein the wireless unit is controlled. An aggregation device according to any one of claims 1 to 7,
A base station that accommodates the aggregation device;
A communication system comprising at least one terminal accommodated by at least one of the aggregation device and the base station.   The base station is communicably connected, starts a timer for each terminal according to the data transfer interval for each terminal based on the setting information, and when the timer for each terminal expires, The communication system according to claim 8, further comprising a server that transmits a data transfer request for the aggregated data to the base station. Wirelessly communicating with at least one terminal and a base station;
Storing data received from the terminal in a storage means;
The data received from the terminal is aggregated for each terminal and stored in the storage means,
Sharing setting information for transmitting the data for each terminal to the base station with the base station,
A communication method of transmitting aggregated data obtained by aggregating the data for each of the terminals stored in the storage unit to the base station in response to a data transfer request based on the setting information.

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