JP2019129340A - Communication system, control arrangement, base station, movement access point, terminal and communication method - Google Patents

Abstract

To inhibit deterioration of service quality due to useless connection changeover of wireless communication of a terminal with a moving access point.SOLUTION: A communication system includes a base station 120, a mobile AP130, a terminal 110 for changing over connection of wireless communication of the base station 120 and the mobile AP130, and a control arrangement 101 generating information for controlling changeover of the terminal 110. The control arrangement 101 estimates an impact area for affecting changeover of communication connection of the terminal 110 by movement of the mobile AP130, or the terminal 110 affected by changeover, on the basis of the information of the terminal 110 and the information of the mobile AP130, and transmits the estimation results to the base station 120. On the basis of the information of impact area or the information of the terminal 110 to be affected thus received, the base station 120 transmits an inhibition control notification, including the information of the mobile AP130, to the terminal 110. On the basis of the received inhibition control notification, the terminal 110 inhibits changeover of connection with the corresponding mobile AP130.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a communication system, a control device, a base station, a mobile access point, a terminal, and a communication method according to control of wireless communication in a wireless communication system.

  A terminal such as a smart phone can wirelessly connect to a base station such as a macro cell or an access point (AP) with a narrow cell range. For example, a terminal can be connected to a base station using a mobile communication method such as LTE, and can be connected to an AP using WiFi (registered trademark) or the like. In recent years, free WiFi spots have increased as APs, and mobile APs in which the APs are mounted on moving mobile bodies (for example, buses etc.) are also increasing. LTE is an abbreviation for Long Term Evolution.

  Conventionally, there has been a technique for suppressing the handover of a terminal located outside the cell range of a mobile base station to the mobile base station with respect to control of the mobile base station (for example, see Patent Documents 1 to 3 below). In addition, there is a technique in which a server manages the movement position of a mobile base station, and controls the operation of the mobile base station using parameter control information suitable for the position including other base stations (see, for example, Patent Document 4 below) ). In addition, there is a technology in which a server invalidally controls a relay function of a relay device that affects communication quality based on a moving position of a relay device that is provided in a mobile body and relays communication between a base station and a terminal (for example, See Patent Document 5).

International Publication No. 2011/104874 Unexamined-Japanese-Patent No. 2011-82942 Japanese Patent Application Laid-Open No. 2009-100300 JP 2010-28369 A Japanese Patent Laying-Open No. 2015-154357

  However, in the above conventional technique, the terminal cannot appropriately switch the communication connection when the mobile AP moves. The terminal holds information on the connection performance of the AP that has been previously connected for communication, for example, an identifier (SSID) of the AP. When the WiFi setting of the terminal is ON, when entering the area of the previously connected AP, the communication with the base station is automatically switched from the LTE communication to the AP WiFi communication. SSID is an abbreviation for Service Set Identifier.

  Here, when the AP is a mobile AP mounted on a mobile body, the terminal has a connection record even when the terminal is in communication with the base station in a state where the wireless communication quality is good by LTE or the like. When the mobile object of the mobile AP approaches the terminal, the terminal switches communication to the mobile AP.

  As a result, the terminal communicating with the base station gives the user a feeling that the throughput has deteriorated. The mobile AP performs communication connection for a terminal that is carried by a user who travels with the mobile body. However, when the mobile AP is relatively close to a terminal located outside the mobile body (possibly owned by a user who is not on the mobile body), the terminal automatically switches connection to the mobile AP. Even if the terminal is in communication connection with the mobile AP that is temporarily approaching, the quality of the communication service is not stable, and the connection switching of the terminal unintentionally for the user is performed. Conventionally, this useless connection switching could not be suppressed.

  In one aspect, it is an object of the present invention to be able to suppress degradation of service quality due to useless wireless communication connection switching of a terminal to a moving access point.

  In one plan, a communication system includes a base station, a mobile access point that moves, a terminal that performs wireless communication by switching communication connection between the base station and the mobile access point, and switching of the communication connection of the terminal. A control device that controls the switching of the communication connection of the terminal by the movement of the mobile access point based on the information on the terminal and the information on the mobile access point. The affected area or the terminal affected by the switching is estimated, and the estimation result is transmitted to the base station. The base station receives the information on the affected area or the information on the affected terminal based on the received information on the affected area. A suppression control notification including mobile access point information is transmitted to the terminal, and the terminal receives the suppression control Based on knowledge, to suppress switching of the communication connection to the mobile access point corresponding to a requirement that.

  According to one embodiment, it is possible to suppress deterioration in service quality due to useless wireless communication connection switching of the terminal to the moving access point.

FIG. 1 is a diagram illustrating an example of an entire configuration of a communication system according to a first embodiment. FIG. 2 is a diagram illustrating an internal configuration example of the learning function of the control device according to the first embodiment. FIG. 3 is a diagram illustrating an internal configuration example of the analysis function of the control device according to the first embodiment. FIG. 4 is a diagram of an exemplary internal configuration of a base station according to the first embodiment. FIG. 5 is a diagram of an exemplary internal configuration of the terminal according to the first embodiment. FIG. 6 is a diagram showing an example of an internal configuration of the mobile access point according to the first embodiment. FIG. 7 is a diagram illustrating an example of the hardware configuration of the control device according to the first embodiment. FIG. 8 is a diagram of an example of a hardware configuration of a base station according to the first embodiment. FIG. 9 is a diagram illustrating an example of the hardware configuration of the terminal according to the first embodiment. FIG. 10 is a chart of an example of information collected by the terminal according to the first embodiment. FIG. 11 is a chart of an example of information collected by the mobile access point according to the first embodiment. FIG. 12 is a chart illustrating an example of learning data information of the control device according to the first embodiment. FIG. 13 is a chart showing an example of information of analytical data of the analyzer according to the first embodiment. FIG. 14 is a diagram for explaining the influence of communication from a mobile access point to a terminal. FIG. 15 is a diagram for explaining an example of control for suppressing the influence of the mobile AP according to the embodiment on the communication of the terminal. (Part 1) FIG. 16 is a diagram for explaining a control example for suppressing the influence of the mobile AP according to the embodiment on the communication of the terminal. (Part 2) FIG. 17 is a sequence diagram of an example of information collection of the learning function of the control device according to the first embodiment. FIG. 18 is a chart of information collected by the learning device according to the first embodiment. FIG. 19 is a sequence diagram of an example of learning processing of the learning function of the control device according to the first embodiment. FIG. 20 is a chart of a process of generating a learning model generated by the learning device according to the first embodiment. FIG. 21 is a sequence diagram of an analysis process example of the analysis function of the control device according to the first embodiment. FIG. 22 is a sequence diagram illustrating another example of the analysis process of the analysis function of the control device according to the first embodiment. FIG. 23 is a chart showing an example of information of analytical data of the analyzer according to the second embodiment. FIG. 24 is a sequence diagram showing an analysis processing example of the analysis function of the control device according to the second embodiment.

  In each embodiment described below, among the base stations with which the terminal performs wireless communication, wireless communication with a specific base station is suppressed. A base station that performs wireless communication with a terminal includes a first communication method, for example, a base station of a macro cell such as LTE, and a second communication method, for example, an access point of a small cell such as WiFi arranged in the macro cell ( And AP).

  Each embodiment will be described using an example of suppressing wireless communication with a moving mobile AP among access points. As described above, the terminal holds information on the mobile AP that has a connection history before. Then, when the mobile AP approaches relatively to the terminal, the terminal inhibits switching of connection from communication with the base station to communication with the mobile AP. Therefore, each device of the communication system performs the following control.

(1) The learning function of the control device is that when a terminal is connected to or disconnected from a mobile AP, the SSID of the corresponding mobile AP, the connection / disconnection time of the communication, the position information of the terminal at that time, and a mobile object (for example, a bus) Collect and learn information such as location information.

(2) The analysis function of the control device may be affected by the communication of the mobile AP when the mobile object approaches, using the learning result of (1) above when the mobile object equipped with the mobile AP travels. Estimate (analyze) the affected area or user (terminal). As described above, the influence of this communication means that when the mobile AP approaches a terminal communicating with the base station, the connection of the terminal with the base station is switched to the communication of the mobile AP.

(3) The analysis function of the control device specifies the information on the influence area or terminal that may be affected by the communication of the mobile AP at the time of the approach of the moving object by specifying the estimation result of the above (2). Alternatively, terminal information is transmitted to the corresponding base station.
(4) The base station switches the communication connection to the mobile AP for the affected area or the affected terminal based on the affected area information or the affected terminal information, which is the estimation result received from the control device. A suppression control notification that suppresses
(5) Based on the suppression control notification notified from the base station, the terminal suppresses the communication connection with the mobile AP when the mobile object approaches relatively.

(6) The terminal is connected to the control device (learning function) via the base station at the time of communication connection to the mobile AP and at the time of communication disconnection. Send various information.
(7) When the terminal switches the communication connection from the wireless communication with the base station to the wireless communication of the mobile AP, the base station sends various information regarding the terminal, the mobile AP, and the moving body to the control device (learning function). Send.

  As described above, even when a terminal having a communication history with the mobile AP is located in an affected area relatively affected by the mobile AP, communication with the currently communicating base station can be continued. And since the terminal does not uselessly switch to the communication connection to the mobile AP and the communication quality during the communication is stable, the experience (throughput) at the time of use of the user who uses the terminal can be improved. In addition, with regard to carriers that perform communication services, it is possible to improve customer satisfaction of users.

  In Embodiment 1 described below, an example of control processing for analyzing an affected area where a terminal is affected by a mobile AP, that is, an example of specifying an affected area without specifying a terminal will be described. In the second embodiment to be described later, an example of control processing for specifying a user (terminal) affected by a mobile AP will be described.

Embodiment 1
FIG. 1 is a diagram illustrating an overall configuration example of a communication system according to the first embodiment. The communication system 100 includes a control device 101, a terminal (UE) 110, a base station (eNB) 120, and a mobile access point (mobile AP) 130. UE is an abbreviation for User Equipment, and LAN is an abbreviation for Local Area Network. Hereinafter, the mobile AP 130 will be described using an example mounted on a bus which is an example of the mobile object C.

  The control apparatus 101 and the base station 120 are arranged on the core network A. The control device 101 includes a learning unit that performs control processing related to the above-described learning function, and an analysis unit that performs control processing related to the above-described analysis function. In the example of FIG. 1, the learning unit and the analysis unit are described as a configuration example divided as different devices (learning device 111 and analysis device 112) for each function. In addition, the function of the analysis device 112 that performs analysis for transmitting a control instruction (a suppression control notification to be described later) to the control device 101, in particular, the terminal 110, can be arranged in MEC (Mobile Edge Computing). In this case, the processing delay can be shortened.

  The terminal 110 performs wireless communication with the base station 120 using, for example, a 5G communication method that is being considered as LTE, LTE-Advanced, or next-generation mobile communication. Further, the terminal 110 performs communication with the mobile AP 130 using, for example, WiFi.

  The mobile AP 130 is installed on a mobile unit (bus) C, and communicates with the Internet B via a wireless LAN. The core network A and the Internet B are communicatively connected to each other, and the control apparatus 101 collects various information of the terminal 110 and the mobile AP 130, and learns and analyzes the information.

  The learning device 111 configuring the control device 101 uses the information transmitted from the base station 120 and the mobile AP 130 to collect information when the terminal 110 is connected to and disconnected from the moving mobile AP 130. Further, information notified from the mobile AP 130 periodically (for example, every second) is collected. Then, the learning device 111 learns a plurality of pieces of collected information corresponding to the movement of the mobile AP 130, and generates a database (DB) of a learning model. The learning device 111 repeats learning for each collection of information, and for example, generates a learning model every day.

  The analysis device 112 operates independently of the learning device 111. Based on the DB of the learning model generated by the learning device 111 and information periodically (for example, every second) notified from the mobile AP 130, the analysis device 112 is affected by the communication of the terminal 110 due to the movement of the mobile AP 130. Estimate possible impact areas in real time. Then, the analyzer 112 transmits the estimation result to the base station 120. Here, the analyzer 112 transmits the estimation result to the base station 120 before the mobile AP 130 approaches the terminal 110. As a result, it becomes possible to execute control for suppressing the influence of communication by the mobile AP 130 with respect to the terminal 110 which the mobile AP 130 moves closer to.

  FIG. 2 is a diagram illustrating an internal configuration example of the learning function of the control device according to the first embodiment. An example of a functional configuration of the learning device 111 of the control device 101 is shown. The learning device 111 includes an IP-interface (IF) control unit 201, a collected information DB 202, a data processing unit 203, a learning unit 204, and a model DB 205. IP is an abbreviation for Internet Protocol.

  The IP-IF control unit 201 is an interface for communication connection to the core network A, and performs data communication for data collection from the base station 120 and the mobile AP 130 via the core network A. Also, data communication with the analysis device 112 is performed via the IP-IF control unit 201. The collected information DB 202 collects and holds information of the terminal 110 and the mobile AP 130.

  The collection information DB 202 collects information on the terminal 110, the mobile AP 130, and the mobile object C from the mobile AP 130 when the terminal 110 approaches the mobile AP 130 and is connected to the mobile AP 130. In addition, the collection information DB 202 collects information on the terminal 110, the mobile AP 130, and the mobile C from the base station 120 when the terminal 110 disconnects after communication connection with the mobile AP 130.

  The data processing unit 203 processes the collected information about the terminal 110 and the mobile AP 130 and outputs the data to the learning unit 204. The learning unit 204 learns data at the time of communication connection of the terminal 110 to the mobile AP 130 and data at the time of disconnection (communication disconnection) after communication connection of the terminal 110 to the mobile AP 130.

  The data collected for learning includes the SSID of the mobile AP 130 collected when the terminal 110 is connected to and disconnected from the mobile AP 130, the communication connection / disconnection time (time), the position information of the terminal 110, and the position of the mobile object C. And so on. Further, the learning unit 204 calculates the speed and traveling direction of the moving object C, the distance between the moving object C and the terminal 110, and the time during which the terminal 110 is receiving communication (WiFi) of the mobile AP 130 based on the collected data.

  The learning unit 204 performs machine learning on the collected information and the calculated information, generates a learning result as a learning model, and stores the learning result in the model DB 205. Then, the generated learning model is transmitted to the analysis device 112 via the IP-IF control unit 201. The learning model includes information on the distance between the mobile C and the terminal 110, which is obtained from the traveling direction and the speed of the mobile C, and the speed of the mobile C.

  Here, although the information on the movement of the terminal 110 is not calculated, only the speed of the mobile C is collected because the speed of the mobile C is high. In this case, the learning model generated by learning the collected data is a collection of information when a plurality of terminals 110 at fixed positions are connected to the mobile AP 130 by the movement of the mobile AP 130. This learning model is information that can be used in the analysis device 112 for analysis of the influence area for each time that affects the communication of the terminal 110 as the mobile AP 130 moves. The learning unit 204 sequentially collects data and continuously generates a learning model (for example, every day).

  Note that information on the velocity and the traveling direction of the terminal 110 may be collected to calculate a change in the position of the terminal 110, and a learning model may be generated. In this case, based on the movements of the terminal 110 and the moving object C, the analysis device 112 can analyze the influence area for each time that the mobile AP 130 affects the communication of the terminal 110.

  FIG. 3 is a diagram illustrating an internal configuration example of the analysis function of the control device according to the first embodiment. 5 shows a functional configuration example of an analysis device 112 of a control device 101. The analysis device 112 includes an IP-IF control unit 301, a model DB 302, a mobile AP information DB 303, and a mobile AP influence area analysis unit 304. The analysis device 112 performs processing independent of the learning device 111, and performs analysis processing described later, for example, on a regular notification (for example, every second) transmitted from the mobile AP 130.

  The IP-IF control unit 301 performs data communication with the learning device 111. The IP-IF control unit 301 performs data communication with the base station 120 via the core network A, and transmits the analysis result of the analysis device 112 to the base station 120. The analysis result includes information on the result of predicting the affected area that affects the switching of the communication connection of the terminal 110 when the mobile AP 130 moves.

  The model DB 302 stores the learning model created by the learning device 111. The mobile AP information DB 303 stores information on the movement of the mobile C transmitted by the mobile AP 130. The mobile AP influence area analysis unit 304 uses the learning model stored in the model DB 302 for information on the moving object C held by the mobile AP information DB 303 to estimate an influence area where the terminal 110 is affected by the movement of the mobile AP 130. The influence of the terminal 110 indicates that the terminal 110 switches the communication connection to the mobile AP 130 as the mobile AP 130 relatively approaches the terminal 110.

  For example, the mobile AP influence area analysis unit 304 estimates the position of the mobile C after a predetermined time (for example, after one second) based on the velocity of the mobile C in the mobile AP information DB 303. Then, the mobile AP influence area analysis unit 304 uses the learning model of the model DB 302 for the estimated position of the mobile AP 130 to identify an influence area where the mobile AP 130 affects the terminal 110 after a predetermined time.

  Then, the mobile AP influence area analysis unit 304 notifies the base station 120 of prediction data including the specified influence area as a prediction result via the IP-IF control unit 301. The base station 120 extracts the terminal 110 that may exist in the notified affected area, and transmits the above-described suppression control notification to the extracted terminal 110.

  FIG. 4 is a diagram of an exemplary internal configuration of a base station according to the first embodiment. The base station (eNB) 120 includes a wireless communication unit 401, an IP-IF control unit 402, a mobile AP switching notification reception unit 403, a mobile AP effect confirmation unit 404, and a suppression control instruction unit 405.

  The wireless communication unit 401 transmits and receives data to and from the terminal 110 by wireless communication. The IP-IF control unit 402 performs data communication with the control device 101 on the core network A side via a network signal.

  The mobile AP switching notification receiving unit 403 disconnects the communication connection with the terminal 110 due to the movement of the mobile AP 130 after the terminal 110 performs the wireless communication connection with the mobile AP 130, and the terminal 110 becomes the communication connection with the base station 120. A switching notification upon switching is received from the terminal 110. The mobile AP switching notification receiving unit 403 transfers the switching notification received from the terminal 110 to the control device 101 (learning device 111) via the IP-IF control unit 402.

  The mobile AP influence confirmation unit 404 extracts the subordinate terminals 110 present in the influence area of the mobile AP 130 based on the influence area which is a prediction result transmitted by the control apparatus 101 (analyzer 112).

  The suppression control instruction unit 405 transmits a suppression control notification to the terminal 110 extracted by the mobile AP effect confirmation unit 404 and performs control to suppress the influence of the mobile AP 130 approaching the terminal 110.

  FIG. 5 is a diagram of an exemplary internal configuration of the terminal according to the first embodiment. The terminal (UE) 110 includes an inter-base station communication unit 501, an AP communication unit 502, a communication switching unit 503, an AP suppression control unit 504, a terminal information collection control unit 505, a terminal information collection unit 506, and a location information collection unit 507. .

  The inter-base station communication unit 501 transmits and receives data to and from the base station 120 by LTE wireless communication. The AP communication unit 502 transmits / receives data to / from an access point (AP) including the mobile AP 130 by wireless communication of WiFi.

  The communication switching unit 503 switches wireless communication between the inter-base station communication unit 501 and the AP communication unit 502. When receiving the suppression control notification from the base station 120, the AP suppression control unit 504 performs control to suppress wireless communication by the AP communication unit 502. For example, based on the suppression control notification, the AP suppression control unit 504 controls the WiFi connection to the SSID (mobile AP 130) to be suppressed to be OFF for a predetermined invalid time.

  The terminal information collection control unit 505 collects various types of information about the terminal 110, for example, information such as a terminal identifier, a communication connection time with the mobile AP 130, and an SSID, and stores the information in the terminal information collection unit 506. In addition, the terminal information collection control unit 505 holds the position information of the terminal 110 in the position information collection unit 507, for example, the position information at the time of communication connection with the mobile AP 130.

  FIG. 6 is a diagram showing an example of an internal configuration of the mobile access point according to the first embodiment. The mobile AP 130 includes an AP communication unit 601, a network communication unit 602, a terminal information reception unit 603, a terminal / mobile object information transmission unit 604, a mobile AP information collection control unit 605, a mobile object information collection unit 606, and a location information collection unit 607. Including.

  The AP communication unit 601 transmits / receives data to / from the terminal 110 by WiFi wireless communication. The network communication unit 602 performs a wireless communication connection to the Internet B. The network communication unit 602 can transmit and receive data to and from the control device 101 via the Internet B.

  The terminal information receiving unit 603 receives various information transmitted from the terminal 110 and outputs it to the terminal / mobile information transmitting unit 604. The mobile AP information collection control unit 605 collects various information related to the mobile AP 130 and stores the information in the mobile body information collection unit 606. Also, the mobile AP information collection control unit 605 collects information on the mobile C on which the mobile AP 130 is mounted, and holds the information in the position information collection unit 607. Then, mobile AP information collection control unit 605 outputs information on mobile AP 130 and mobile C to terminal / mobile information transmission unit 604.

  The terminal / mobile body information transmission unit 604 controls the information about the mobile AP 130 and the mobile body C collected by the mobile AP information collection control unit 605 via the network communication unit 602, which is output from the terminal information reception unit 603. It transmits to the apparatus 101 (learning apparatus 111).

  FIG. 7 is a diagram illustrating an example of the hardware configuration of the control device according to the first embodiment. The learning device 111 and the analysis device 112 of the control device 101 shown in FIG. 1 can be realized by the hardware configuration shown in FIG. 7 respectively. The control device 101 includes an input / output interface (IF) 701, a network interface 702, a CPU (Central Processing Unit) 703, and a memory 704.

  An input / output interface (IF) 701 is an IF for transmitting and receiving data between the learning device 111 and the analysis device 112. The network IF 702 is a communication IF that is connected to the core network A for communication. The control device 101 (the learning device 111 and the analysis device 112) transmits / receives data to / from the base station 120 via the network IF 702, and transmits / receives data to / from the mobile AP 130 via the core network A to the Internet B to the wireless LAN. The input / output IF 701 realizes the functions of the IP-IF control unit of the learning device 111 (FIG. 2) and the analysis device (FIG. 3). When the function of the learning device 111 and the function of the analysis device 112 are implemented in a single control device 101, the input / output IF 701 can be omitted.

  The CPU 703 generally controls the entire control device 101. For example, the CPU 703 implements the functions of the data processing unit 203 and the learning unit 204 of the learning device 111 illustrated in FIG. The functions of the data processing unit 203 and the learning unit 204 of the learning device 111 can be realized by the CPU 703 shown in FIG. 7 reading and executing the program stored in the memory 704 and using the memory 704 as a work area at that time. It is. As the memory 704, ROM, RAM, flash ROM, or the like can be used. Further, the memory 704 stores and holds the information of the collection information DB 202 and the model DB 205 shown in FIG.

  In addition, the CPU 703 implements the function of the mobile AP influence area analysis unit 304 of the analysis device 112 illustrated in FIG. The function of the mobile AP influence area analysis unit 304 of the analysis device 112 can be realized by the CPU 703 shown in FIG. 7 reading and executing the program stored in the memory 704 and using the memory 704 as a work area. is there. Further, the memory 704 stores and holds the information of the model DB 302 and the mobile AP information DB 303 shown in FIG.

  Even when the functions of the learning device 111 and the analysis device 112 are configured by a single control device 101, the CPU 703 can realize the functions of the devices by executing the program. The hardware of the control device 101 shown in FIG. 7 can be configured using a general-purpose server.

  FIG. 8 is a diagram of an example of a hardware configuration of a base station according to the first embodiment. The base station (eNB) 120 includes an RF (Radio Frequency) circuit 801, a network IF 802, a CPU 803, a DSP (Digital Signal Processor) 804, and a memory 805.

  The RF circuit 801 performs wireless communication with the terminal 110 by a predetermined wireless method (LTE), and realizes the function of the wireless communication unit 401 in FIG. The network IF 802 communicates with the control apparatus 101 via the core network A, and implements the function of the IP-IF control unit 402 in FIG. 4.

  The CPU 803 performs overall control of the entire base station 120 and realizes the functions of the mobile AP switching notification receiving unit 403, the mobile AP effect confirmation unit 404, and the inhibition control instruction unit 405 in FIG. Each of these functions can be realized by the CPU 803 shown in FIG. 8 reading and executing the program stored in the memory 805 and using the memory 805 as a work area.

  The DSP 804 realizes, for example, a baseband signal processing function of the base station 120. In addition, the CPU 803 may realize a baseband signal processing function.

  Although the hardware configuration example of the mobile AP 130 is not illustrated, the function can be realized by using the same hardware configuration as in FIG. The CPU 803 performs overall control of the mobile AP 130 and implements the functions of the terminal information receiving unit 603, the terminal / mobile body information transmitting unit 604, and the mobile AP information collection control unit 605 in FIG. The memory 805 stores and holds various information collected by the position information collecting unit 607 and the mobile information collecting unit 606 in FIG. Further, the mobile AP 130 may be configured not to include the network IF 802 illustrated in FIG. 8. In this case, the RF circuit 801 performs data transmission / reception between the terminal 110 and the control device 101 via the Internet B.

  FIG. 9 is a diagram illustrating an example of the hardware configuration of the terminal according to the first embodiment. The terminal (UE) 110 includes an RF circuit 901, a CPU 902, and a memory 903.

  The RF circuit 901 performs wireless communication using the LTE or WiFi wireless system between the base station 120 and the mobile AP 130, and realizes the functions of the inter-base station communication unit 501 and the AP communication unit 502 in FIG.

  The CPU 902 performs overall control of the entire terminal 110, and implements the respective functions of the communication switching unit 503, the AP suppression control unit 504, and the terminal information collection control unit 505 in FIG. These functions can be realized by the CPU 902 shown in FIG. 9 reading and executing a program stored in the memory 903 and using the memory 903 as a work area. The memory 903 stores and holds various types of information collected by the terminal information collection unit 506 and the position information collection unit 507 illustrated in FIG.

  FIG. 10 is a chart of an example of information collected by the terminal according to the first embodiment. The example of the various information which the terminal 110 (terminal information collection control part 505) collects is shown. When communicating with the base station 120 and the mobile AP 130, the information includes the connection time (HH: MM: SS), the location information (latitude / longitude) of the terminal 110 at the time of connection, and the SSID (leaving immediately before). Of the mobile AP 130). Also, it includes a terminal identifier, data collection time (at the time of mobile AP access, at the time of eNB connection), and a data notification destination (mobile AP, eNB).

  As illustrated in FIG. 10, when accessing the mobile AP 130, the terminal 110 collects various types of information such as a connection time, connection position information, and a terminal identifier, and transmits data to the mobile AP 130. The terminal 110 collects various types of information such as the connection time, the location information at the time of connection, and the terminal identifier that was disconnected (communication disconnection) immediately before communication to the base station 120, and transmits data to the base station 120. Do.

  FIG. 11 is a chart of an example of information collected by the mobile access point according to the first embodiment. The example of the various information which the mobile AP130 (mobile AP information collection control part 605) collects is shown. The information includes the time at which the communication connection is established, the time at which the communication connection is established, the location information of the terminal 110 at the time of connection, the location information of the mobile body (bus) C at the time of connection, Includes speed, SSID.

  As shown in FIG. 11, the mobile AP 130 collects various information such as the connection time, the terminal position information at the time of connection, the position information of the mobile object at the time of connection, the speed of the mobile object, and the SSID when the terminal 110 is connected. Then, data is transmitted to the control device 101 (learning device 111). In addition, the mobile AP 130 collects various information such as the time at the time of notification, the position information of the mobile body at the time of connection, the speed of the mobile body, and the SSID periodically (for example, in units of 1 second), and the control device 101 (learning device). 111 and analyzer 112).

  FIG. 12 is a chart illustrating an example of learning data information of the control device according to the first embodiment. The example of the data for a learning which the learning apparatus 111 of the control apparatus 101 uses for learning is shown. The learning device 111 creates the following information when the terminal 110 shown in FIG. 12A connects to the mobile AP 130 and when the terminal 110 shown in FIG. 12B leaves the mobile AP 130.

  The learning device 111 collects various information transmitted from the terminal 110 and the mobile AP 130, processes the data, and generates learning data. At this time, the learning device 111 collects the “time at connection (FIG. 10)” of the terminal 110 collected via the base station 120 and the “time at connection (at the time of notification of the periodic notification in FIG. 11) collected from the mobile AP 130. Merge data that match "time".

  Thus, learning data shown in FIGS. 12 (a) and 12 (b) are respectively generated. The learning data includes the time when the terminal 110 is connected to the mobile AP 130, the position information of the terminal at the time of connection, the position information of the mobile body at the time of connection, the speed of the mobile body, the SSID, the traveling direction of the mobile body C, It includes the distance of the terminal 110, the time during WiFi connection, and the terminal identifier.

  The learning device 111 calculates the “traveling direction of moving object” of the above learning data by the difference of “moving object position information” of the information collected in time series. The “distance between the mobile unit and the terminal” is calculated based on “terminal location information” and “mobile unit location information” when the terminal 110 is connected to the mobile AP 130. 12B is calculated based on the difference between the “time during WiFi connection” and the “time during WiFi connection” of the “terminal identifier” of the corresponding terminal 110. The learning device 111 outputs the learning result of the learning data shown in FIGS. 12A and 12B to the analysis device 112 as a learning model.

  FIG. 13 is a chart showing an example of information of analytical data of the analyzer according to the first embodiment. In the first embodiment, the terminal 110 identifies the affected area affected by the mobile AP 130 without identifying the terminal 110 as described above. At this time, the analyzer 112 receives the analysis data shown in FIG. 13 from the mobile AP 130, and estimates the position of the mobile C for a predetermined time (for example, after one second) of the mobile C. The analysis data includes current time, mobile location information, mobile speed, and SSID.

  Then, the analysis device 112 analyzes the analysis data using the learning model output from the learning device 111, the influence area (latitude / longitude, etc.) where the mobile AP 130 affects the terminal 110, the WiFi connection time (the influence is Estimate a certain time). Then, the analysis device 112 transmits the estimated data thus estimated to the base station 120 as a prediction result.

  The base station 120 that has received the prediction data extracts the terminal 110 that may be located in the area affected by the prediction data, and sends a suppression control notification that suppresses communication with the mobile AP 130 to the terminal 110. Send. In addition, when the terminal 110 receives the inhibition control notification from the base station 120, the terminal 110 performs control to temporarily disable the WiFi connection to the corresponding mobile AP 130.

(About the influence of mobile AP on terminal communication)
Next, the influence of the mobile AP 130 on the communication of the terminal 110 due to the relative approach of the terminal 110 will be described with reference to the drawings.

  FIG. 14 is a diagram for explaining the influence of communication from a mobile access point to a terminal. A problem of switching to WiFi connection that occurs in the terminal 110 when the mobile AP 130 approaches the terminal 110, which has occurred in the existing technology, will be described. When the WiFi setting is ON, the terminal 110 can also communicate with the WiFi of the SSID (mobile AP 130) that has a history of previous access.

  Here, as shown in FIG. 14, when the mobile AP 130 is located within the terminal 110 influence area (WiFi communication range) w due to the movement of the mobile object C such as a bus, the terminal 110 automatically becomes the WiFi of the mobile AP 130. to access. In the existing technology, even if the terminal 110 is communicating in a state where the wireless communication quality is good by the LTE wireless communication M within the area (macro cell range) m of the base station 120, the terminal 110 is connected due to the approach of the mobile unit C. Access to the wireless communication W in the WiFi affected area w of the mobile AP 130. As a result, the terminal 110 has switched communication from LTE to WiFi. When the mobile object C passes away from the influence area w that can communicate with the terminal 110, the terminal 110 leaves the WiFi wireless communication W of the mobile AP 130 and switches the communication to the LTE wireless communication M again.

  In the above description, the example in which the mobile AP 130 approaches the terminal 110 has been described. Conversely, when the terminal 110 (user) approaches the mobile AP 130, both the terminal 110 and the mobile AP 130 have moved. Even when approaching, there is a similar problem.

  As described above, in the existing technology, the terminal 110 is unnecessarily switched due to the approach of the mobile AP 130, and the communication quality is not stable. For this reason, it is desirable that the wireless switching does not occur even when entering the influence area accessible to the WiFi of the mobile AP 130 except for the passenger of the mobile C.

  15 and 16 are diagrams for explaining a control example for suppressing the influence of the mobile AP on the communication of the terminal according to the embodiment. In the communication system according to the first embodiment, when the terminal 110 is relatively close to the mobile AP 130, the above-described controls (1) to (6) are performed to prevent the communication connection from being switched to the mobile AP 130.

  With each of these controls, as illustrated in FIG. 15, the control apparatus 101 transmits information on the affected area that affects the switching of the communication connection of the terminal 110 to the base station 120 due to the movement of the mobile AP 130. Then, based on the information of the affected area received from the control device 101, the base station 120 approaches the mobile AP 130 relatively to the terminal 110 that is performing wireless communication M with the base station 120 in the affected area. Before being received, the suppression control notification S is transmitted. The suppression control notification S includes a WiFi affected area (latitude, longitude, etc.) that the mobile AP 130 affects the terminal 110, and a WiFi connection time (time affected).

  Then, as illustrated in FIG. 16, the terminal 110 that has received the suppression control notification S invalidates the WiFi wireless communication W with the mobile AP 130 in accordance with the time when the mobile object C approaches (passes) the terminal 110. Control to At this time, the terminal 110 performs invalid control not to connect to the mobile AP 130 of the SSID notified by the suppression control notification S, and cancels the invalid control after a predetermined time. Thereby, the terminal 110 can continue the LTE wireless communication M with the base station 120 during the period in which the mobile AP 130 is located in the influence area w, and can continue communication with stable communication quality. It will be.

(About the learning function of the controller)
Next, a control example of each device of the communication system according to the first exemplary embodiment will be described. FIG. 17 is a sequence diagram illustrating an example of information collection of the learning function of the control device according to the first embodiment.

  FIG. 18 is a chart showing information collected by the learning device according to the first embodiment. FIG. 18 shows a state transition of the collection information DB 202 that stores information collected by the learning device 111. The control at the time of data collection of the learning device 111 according to FIG. 17 and the DB transition state of FIG. 18 will be described together.

  Here, it is assumed that the mobile AP 130 is in a moving state in which the mobile AP 130 moves away from the terminal 110 after approaching the terminal 110 due to the movement of the bus C that is a moving body. In this case, as shown in FIG. 17, when the mobile AP 130 approaches the terminal 110, the terminal 110 establishes a WiFi communication connection with the mobile AP 130 (step S1701). Here, it is assumed that the terminal 110 holds information (SSID etc.) of the communication result of the communication connection with the mobile AP 130 before. At this time, the terminal 110 transmits the terminal identifier, the time of WiFi connection to the mobile AP 130, the position information of the terminal 110 at connection, etc. to the mobile AP 130 (step S1702).

  Then, the mobile AP 130 transmits information on the terminal 110 and the mobile AP 130 to the learning device 111 (step S1703). For example, each information such as the time of connection with the terminal 110, the position information of the terminal 110 and the bus C, the speed of the bus C, the SSID, and the terminal identifier are transmitted.

  Thereafter, the learning device 111 determines whether the position information of the terminal 110 and the bus C is the same position (step S1704). As a result of the determination, if the terminal 110 and the position of the bus C are not the same (step S1704: No), the learning device 111 stores the received WiFi connection information in the collection information DB 202 (step S1705).

  At this time, as illustrated in FIG. 18A, the learning device 111 stores various types of information in the collected information DB 202 when the terminal 110 is in communication connection with the mobile AP 130. These pieces of information include connection time "8:10:30", terminal position information at connection, bus position information at connection, bus speed, SSID, terminal identifier, and the like.

  On the other hand, if the position of the bus C is the same as that of the terminal 110 (step S1704: Yes), the learning device 111 discards the received information and ends the processing without performing the subsequent processing.

  Thereafter, when the mobile AP 130 leaves the terminal 110, the terminal 110 disconnects the communication connection with the mobile AP 130 (step S1706) and performs control to switch to wireless communication with the base station 120 (step S1707). ). Then, the terminal 110 transmits a WiFi switching notification to the base station 120 (step S1708). This WiFi switching notification includes the terminal identifier of the terminal 110, the connection time, the location information at the time of connection, and the switching source SSID (the SSID of the mobile AP 130 that has left) when switching from WiFi communication to base station communication.

  The base station 120 waits for reception of the WiFi switching notification from the terminal 110 (step S1709: No loop). And if it is reception of WiFi switching notification (step S1709: Yes), the base station 120 will transmit each information, such as received WiFi switching notification, to the learning apparatus 111 (step S1710). The learning device 111 stores each information of the received WiFi switching notification in the collection information DB 202 (step S1711).

  At this time, as shown in FIG. 18 (b), the learning device 111 stores various information in the collected information DB 202 when the terminal 110 leaves WiFi (at the time of base station 120 communication connection). These pieces of information include a terminal identifier, a time when connecting to the base station 120, position information of the terminal 110 when connecting to the base station 120, a switching source SSID, and the like.

  In addition, the mobile AP 130 transmits information on the periodic notification to the learning device 111 periodically (for example, every second) separately from the above processing (step S1712).

  The collected information DB 202 holds the information collected via the mobile AP 130 and the information collected via the base station 120 as a separate DB (step S1713). FIG. 18C shows the DB at the time of WiFi connection of the terminal 110 collected via the mobile AP 130 in the collection information DB 202. Each of the terminals 110 shown in FIG. The information and the information of the periodic notification transmitted from the base station 120 are accumulated and held.

  FIG. 18D shows a DB of information collected via the base station 120 in the collected information DB 202. When the terminal 110 shown in FIG. 18B leaves WiFi, that is, the base due to WiFi withdrawal. Each information at the time of communication connection to the station 120 is accumulated and held.

  Thereafter, the learning device 111 learns by using the information stored in the collected information DB 202 when the terminal 110 is connected to the WiFi shown in FIG. 18C and when the WiFi is disconnected shown in FIG. And generate a learning model.

  FIG. 19 is a sequence diagram illustrating a learning process example of the learning function of the control device according to the first embodiment. FIG. 19 shows control related to the learning process performed by the learning apparatus 111 of the control apparatus 101 following the process of FIG.

  FIG. 20 is a chart of a learning model generation process generated by the learning apparatus according to the first embodiment. The process of generating the learning model of the learning device 111 in FIG. 19 and the transition state of the model DB 205 at the time of generation of the learning model in FIG. 20 will be described together.

  First, the learning device 111 uses the information when the WiFi connection to the mobile AP 130 of the terminal 110 and the withdrawal from the WiFi stored in the collection information DB 202 illustrated in FIGS. 18C and 18D are used. Data processing is performed to generate learning data (step S1901). When generating the learning data, the learning device 111 firstly sets the “connection time” of the data collected via the base station 120 and the “connection time (at the time of periodic notification) of the data collected via the mobile AP 130. "Time" is stored in the model DB 205 (step S1902).

  At this time, as shown in FIG. 20 (a), the learning device 111 is connected to the mobile AP 130 at the time of WiFi connection and disconnection from the WiFi, the connection time, the location information of the terminal 110 at the time of connection, and the bus position at the time of connection. Information, the speed of the bus C, and the SSID are stored in the model DB 205.

  Next, the learning device 111 calculates the traveling direction of the bus C and stores it in the model DB 205 (step S1903). At this time, as shown in FIG. 20 (b), the learning device 111 calculates the traveling direction “north → south” of the bus C based on the difference in the position information of the bus C that moves back and forth at the time of connection. The traveling direction of the bus C is added to the information when the mobile AP leaves the DB 205 and stored.

  Next, the learning device 111 calculates the distance between the bus C and the terminal 110 and stores it in the model DB (step S1904). At this time, as illustrated in FIG. 20C, the learning device 111 determines the distances “8 m” and “15 m” between the bus C and the terminal 110 based on the difference in position information between the bus C and the terminal 110 at each connection time. Calculate ". Then, the calculated distance between the bus C and the terminal 110 is added to the model DB 205 and stored as the information at the time of mobile AP connection and at the time of mobile AP departure.

  Next, the learning device 111 calculates a time during which the terminal 110 is connected to the WiFi with respect to the mobile AP 130, and stores the time in the model DB 205 (step S1905). At this time, as shown in FIG. 20 (d), the learning device 111 determines a difference time “1: from the“ time at connection ”at the time of connection and disconnection of the terminal 110 with the same terminal identifier to the mobile AP 130. Calculate 31 ". Then, the calculated WiFi connection time is added to the model DB 205 and stored as information when the mobile AP is connected.

  The learning device 111 generates a new learning model every time the data collection and learning processing described above is performed regularly (for example, every day) (step S1906). At this time, it is stored and held in the model DB 205 as shown in FIG. The learning device 111 transmits the learning model generated by learning to the analysis device 112 (step S1907). The analysis device 112 stores and holds the learning model in the model DB 302 (step S1908). Thereafter, the analysis device 112 performs processing of analyzing the influence of the mobile AP 130 on the terminal 110 in real time, using the generated learning model.

(About the analysis function of the controller)
FIG. 21 is a sequence diagram illustrating an analysis processing example of the analysis function of the control device according to the first embodiment. A control example of the system related to the analysis process of the analyzer 112 will be described with reference to FIG.

  As described above, in the first embodiment, the analysis apparatus 112 identifies an affected area that is affected by the mobile AP 130. First, the analysis apparatus 112 receives a periodic notification transmitted periodically (for example, every second) from the mobile AP 130 (step S2101). The periodic notification includes the notification time of the periodic notification, the current position information of the bus C, the speed of the bus C, and the SSID.

  Then, based on the periodic information received from the mobile AP 130, the analyzer 112 estimates the position of the moving bus C after a predetermined time (for example, one second) (step S2102). For example, the position after one second of the bus C is estimated from the difference between the positions of the bus C of periodic information transmitted in a plurality.

  Thereafter, the analyzer 112 analyzes the position of the estimated bus C after a predetermined time, using the learning model stored in the model DB 302 as a model for analysis (step S2103). As shown in FIG. 20, the learning model (model for analysis) stored in the model DB 302 has various types of information at the time of connection and disconnection of the mobile AP. Here, the analysis device 112 identifies an influence area that may be affected by the WiFi communication of the mobile AP 130 during movement, based on the position and speed of the mobile AP 130, the traveling direction, and the like at the time of analysis. Step S2104).

  Then, the analysis apparatus 112 notifies the base station 120 of information on the prediction result including the identified affected area (step S2105). The information of the prediction result includes information such as the SSID of the mobile AP 130, the WiFi invalidation time, the latitude and longitude indicating the affected area, and the speed of the bus C. The WiFi inactivity time is a period of time for which the terminal 110 is to invalidate the WiFi connection based on, for example, the moving speed of the bus C, the range of the affected area that is affected by the WiFi communication, and the like.

  The base station 120 extracts the terminal 110 which may be located in the influence area under the control of the base station 120 based on the information of the prediction result notified from the analysis device 112 (step S2106). Here, it is determined whether the position (latitude and longitude) of the terminal 110 is the same as the position (latitude and longitude) of the bus stop of the bus C (step S2108). At this time, the base station 120 repeats the determination process in step S2108 for the terminals 110 of a plurality of users located in the affected area (step S2107) (corresponding to a loop process in step S2108: Yes). Here, when there is a terminal 110 located at the bus stop (a user is present), the terminal 110 of the user boarding the bus C is excluded from the target of the suppression control notification.

  Then, when the base station 120 finishes the process of step S2108 for a plurality of terminals located in the corresponding affected area (step S2108: No), the base station 120 sends a suppression control notification for suppressing the WiFi communication to the corresponding terminal 110. Transmit (step S2109). The inhibition control notification includes information on the SSID of the mobile AP 130, the WiFi invalid time, and the speed of the bus C.

  When the terminal 110 receives the inhibition control notification, the terminal 110 controls the WiFi connection of the corresponding SSID to be turned off (step S2110). Thus, the terminal 110 can in advance disable the WiFi connection to the approaching mobile AP 130. Also, the terminal 110 does not perform WiFi communication with the mobile AP 130 during the notified WiFi invalid time, and after the WiFi invalid time has elapsed, returns the WiFi connection of the corresponding SSID to ON (valid) (step S2111). Thereby, the terminal 110 can invalidate the WiFi connection to the mobile AP 130 only for a temporary period of passing through the terminal 110.

  FIG. 22 is a sequence diagram illustrating another example of the analysis process of the analysis function of the control device according to the first embodiment. FIG. 22 shows an example in which the WiFi suppression control is canceled when the terminal 110 in the WiFi suppression control gets on the bus C.

  First, the terminal 110 controls the WiFi connection to the corresponding SSID (mobile AP 130) to be OFF, and is during the WiFi inactivity time (step S2201). Hereinafter, the processing from step S2202 to step S2210 is the same as the processing from step S2101 to step S2109 shown in FIG.

  Thereafter, in step S2210, the terminal 110, which has received the suppression control notification from the base station 120, measures the speed of the own terminal 110 (step S2211). Then, the terminal 110 determines whether or not the speed of the terminal 110 is the same as the speed of the bus C (step S2212).

  As a result of the determination, if the speed of the own terminal 110 is the same as the speed of the bus C (step S2212: YES), the terminal 110 turns on the WiFi connection to the mobile AP 130 of the corresponding SSID included in the suppression control notification (step S2213). On the other hand, if the speed of the own terminal 110 is not the same as the speed of the bus C (step S2212: No), the processing is not performed and the WiFi connection to the mobile AP 130 is maintained in the OFF state.

  In step S2212, if the user of terminal 110 is on bus C, the speed of terminal 110 is the same as the speed of bus C. In this case, the terminal 110 determines that the user of the terminal 110 has boarded the bus C and cancels the inhibition control, so that the terminal 110 can connect to the mobile AP 130 via WiFi.

  In step S2212, the user of the terminal 110 determines whether or not the user has boarded the bus C, and may determine based on the radio wave intensity of the mobile AP 130 detected by the terminal 110 in addition to the above speed comparison. For example, when the radio wave intensity of the corresponding mobile AP 130 detected by the terminal 110 does not change, it is determined that the terminal 110 is moving along with the bus C, and cancellation control (WiFi connection ON) in step S2213 may be executed. .

  According to the first embodiment described above, the control device 101 collects and learns the information of the corresponding mobile AP 130 when the terminal 110 performs communication connection or disconnection of the mobile AP 130, and generates a learning model for analysis. . Then, when the bus C of the mobile AP 130 travels, the control device 101 identifies an affected area that may be affected by the communication of the mobile AP 130 when the bus C approaches by using the learning result, and the information of the affected area Is transmitted to the base station 120. Based on the received information on the influence area, the base station 120 performs suppression control notification to the terminal 110 of the corresponding user located in the influence area to suppress the switching of the communication connection to the mobile AP 130. Accordingly, the terminal 110 can suppress the communication connection with the mobile AP 130 for a temporary period when the bus C relatively approaches based on the suppression control notification.

  Here, the control device specifies an influence area affected by the WiFi communication of the mobile AP 130 by traveling the bus C, and before the bus C approaches the terminal 110, information on the corresponding influence area as the base station 120. , And the base station 120 transmits the suppression control notification to the corresponding terminal 110. As a result, even when the mobile AP 130 and the terminal 110 having a communication record relatively approach the mobile AP 130 and are located in the affected area affected by the mobile AP 130, the LTE communication with the currently communicating base station 120 is continued. become able to. At this time, the terminal 110 prevents unnecessary switching to WiFi communication to the mobile AP 130 and stabilizes the communication quality during communication. Therefore, it is possible to improve the experience when the user of the terminal 110 is used.

Second Embodiment
In the second embodiment, an example of a control process for identifying a user terminal affected by a mobile AP will be described. This second embodiment also has the same system configuration as that of the first embodiment. And the control apparatus 101 produces | generates learning data with the learning function (learning apparatus 111) similar to Embodiment 1, and outputs it to an analysis function (analysis apparatus 112). The second embodiment is different from the first embodiment in that the analysis function (analysis device 112) of the control device 101 identifies the user (terminal 110) affected by the mobile AP 130. Therefore, in the second embodiment, mobile AP influence area analysis unit 304 of analysis apparatus 112 described in FIG. 3 is different in that it analyzes terminals affected by mobile AP 130, and functions as a mobile AP influence terminal analysis unit. Do.

  FIG. 23 is a chart showing an example of information of analytical data of the analyzer according to the second embodiment. The analyzer 112 receives the analysis data shown in FIG. 23 from the mobile AP 130, and estimates the position of the mobile C at a predetermined time (for example, after one second) of the mobile C. The analysis data includes the current time, the position information of the mobile (bus) C, the speed of the mobile, and the SSID.

  Then, the analysis device 112 analyzes the analysis data using the learning model output from the learning device 111, and estimates the terminal 110 (terminal identifier) affected by the mobile AP 130 and the WiFi connection time (time affected). To do. Then, the analyzer 112 transmits the estimated corresponding terminal 110 to the base station 120 as a prediction result.

  FIG. 24 is a sequence diagram showing an analysis processing example of the analysis function of the control device according to the second embodiment. An example of control of a system related to the analysis processing of the analyzer 112 will be described with reference to FIG. First, the analysis apparatus 112 receives a periodic notification transmitted periodically (for example, every second) from the mobile AP 130 (step S2401). The periodic notification includes the notification time of the periodic notification, the current position information of the bus C, the speed of the bus C, and the SSID.

  Then, based on the periodic information received from the mobile AP 130, the analysis device 112 estimates the position of the bus C in motion after a predetermined time (for example, one second) (step S2402). For example, the position after one second of the bus C is estimated from the difference between the positions of the bus C of periodic information transmitted in a plurality.

  Thereafter, the analyzer 112 analyzes the position of the estimated bus C after a predetermined time, using the learning model stored in the model DB 302 as a model for analysis (step S2403). As shown in FIG. 20, the learning model (model for analysis) stored in the model DB 302 has various types of information at the time of connection and disconnection of the mobile AP. Here, the analysis apparatus 112 specifies the terminal 110 affected by the WiFi communication of the mobile AP 130 during movement based on the position, velocity, traveling direction, etc. of the mobile AP 130 at the time of analysis (step S2404).

  Then, the analysis device 112 notifies the base station 120 of information on the prediction result including the identified terminal 110 (step S2405). The information of the prediction result includes information such as the SSID of the mobile AP 130, the WiFi invalid time, the latitude / longitude indicating the affected area, the speed of the bus C, the terminal identifier of the identified terminal 110, and the like. The WiFi inactivity time is, for example, based on the moving speed of the bus C, the range of the affected area that is affected by the WiFi communication, etc., and determines a period for inactivating the WiFi connection to the terminal 110.

  The base station 120 determines whether the position (latitude / longitude) of the corresponding terminal 110 is the same as the position (latitude / longitude) of the bus C on the basis of the information on the prediction result notified from the analysis device 112 (step S2407). ). At this time, the base station 120 repeats the determination process of step S2107 for the number of minutes of the corresponding terminal 110 (step S2406) (corresponding to the loop process of step S2407: Yes). Here, when there is a user of the terminal 110 located at the bus stop, the terminal 110 of the user who gets on the bus C is excluded from the target of the suppression control notification.

  Then, when the base station 120 finishes the process of step S2406 for a plurality of users located in the corresponding affected area (step S2407: No), the base station 120 sends the suppression control notification for suppressing the WiFi communication to the corresponding terminal 110. Transmit (step S2408). The inhibition control notification includes information on the SSID of the mobile AP 130, the WiFi invalid time, and the speed of the bus C.

  Upon receiving the suppression control notification, the terminal 110 controls the WiFi connection of the corresponding SSID to be turned off (step S2409). Thus, the terminal 110 can in advance disable the WiFi connection to the approaching mobile AP 130. Further, the terminal 110 does not perform WiFi communication with the mobile AP 130 during the notified WiFi invalid time, and after the WiFi invalid time has elapsed, returns the WiFi connection of the corresponding SSID to ON (valid) (step S2410). Thereby, the terminal 110 can invalidate the WiFi connection to the mobile AP 130 only for a temporary period of passing through the terminal 110.

  According to the second embodiment described above, the same effects as those of the first embodiment can be obtained. In the second embodiment, when the bus C of the mobile AP 130 travels, the control device 101 identifies the terminal 110 affected by the communication of the mobile AP 130 when the bus C approaches, using the learning result, and the information of the terminal 110 Is transmitted to the base station 120. Based on the received information of the terminal, the base station 120 performs, to the corresponding terminal 110, inhibition control notification for inhibiting switching of the communication connection to the mobile AP 130. Accordingly, the terminal 110 can suppress the communication connection with the mobile AP 130 for a temporary period when the bus C relatively approaches based on the suppression control notification.

  Also in the second embodiment, the control device 101 directly notifies the base station 120 of the terminal 110 affected by the approach of the mobile AP 130 before the bus C approaches the terminal 110, and the base station 120 performs this process. A suppression control notification is transmitted to the terminal 110. As a result, even if the terminal 110 relatively approaches the mobile AP 130, LTE communication with the base station 120 currently in communication can be continued. At this time, since the terminal 110 prevents the useless switching to the WiFi communication to the mobile AP 130 and the communication quality during communication is stabilized, it is possible to improve the experience when the user of the terminal 110 is used.

  According to the second embodiment, since the control apparatus 101 predicts the terminal 110 affected by the mobile AP 130 and notifies the base station 120, the base station 120 performs the process of extracting the corresponding terminal 110 (first embodiment). It can be made unnecessary.

  According to each embodiment described above, when a terminal is connected to or disconnected from a mobile AP, the control device collects and learns information on the corresponding mobile AP and generates a learning model for analysis. Then, when the mobile object of the mobile AP travels, the control device uses the learning result to estimate an influence area or terminal that may be affected by the communication of the mobile AP when the mobile object approaches. Then, the control device transmits the estimated result of estimation to the base station, and the base station transmits it to the terminal of the corresponding user as a suppression control notification for suppressing switching of the communication connection to the mobile AP. Thereby, the terminal can suppress the communication connection with the mobile AP for a temporary period when the mobile body relatively approaches based on the suppression control notification.

  Then, the control device identifies the affected area or terminal that is affected by the mobile AP's wireless communication when the mobile body travels. However, before the mobile body approaches the terminal, information on the affected area or terminal is obtained. The base station is notified, and the base station transmits the suppression control notification to the corresponding terminal. As a result, even when the terminal is relatively close to the mobile AP and is located in the affected area affected by the mobile AP, wireless communication with the currently communicating base station can be continued. At this time, even if the terminal has a communication record with the mobile AP, the terminal is prevented from being switched to wireless communication to the mobile AP in vain, and the communication quality during communication is stabilized. Can be improved.

  In addition, the mobile AP mounted on the mobile body moves relative to the terminal and corresponds to temporarily approaching, such as passing and leaving after approaching, and the mobile AP approaches the terminal. Control can be performed to invalidate the communication connection to the mobile AP only during a certain period. By this, it is possible to efficiently prevent the terminal from being connected to the mobile AP in vain in accordance with the movement state of the mobile AP among a large number of APs.

  It is also possible to determine the user who gets on the moving object based on the respective states of the user terminal and the moving AP, cancel the inhibition control, and enable the communication connection to the moving AP. In this way, not only simply suppressing communication connection to the mobile AP, but also convenience for a user who rides on the mobile body and uses wireless communication of the mobile AP can be ensured.

  Further, in the embodiment, the bus has been described as an example of the moving body, but the present invention can be similarly applied to other trains, ships, and the like. As these mobile units, for example, learning data of the control device can be constructed by applying a determined route to a mobile unit operating periodically according to a scheduled time schedule. In addition, the reliability of the learning data can be improved, and the influence area and terminal affected by the mobile AP can be accurately estimated at the time of analysis processing using the learning data.

  The control method described in the present embodiment can be realized by executing a control program prepared in advance on a computer (a processor such as a CPU) such as a target device (the above-described control device or the like). This control program is recorded on a computer-readable recording medium such as a magnetic disk, an optical disk, or a USB (Universal Serial Bus) flash memory, and is executed by being read from the recording medium by the computer. Also, the control program may be distributed via a network such as the Internet.

  The following additional notes are disclosed with respect to the embodiment described above.

(Supplementary note 1) a base station, a mobile access point that moves, a terminal that performs wireless communication by switching communication connection between the base station and the mobile access point, and a control device that controls switching of the communication connection of the terminal; In the communication system including
Based on the information on the terminal and the information on the mobile access point, the control device determines an influence area that influences switching of the communication connection of the terminal due to movement of the mobile access point or a terminal that is affected by the switching. Estimating, transmitting the estimation result to the base station,
The base station transmits a suppression control notification including information on the mobile access point to the terminal based on the received information on the affected area or information on the affected terminal,
The terminal suppresses switching of communication connection to the corresponding mobile access point based on the received suppression control notification.
A communication system characterized by the above.

(Supplementary Note 2) The control device
With the movement of the mobile access point, a learning unit that collects information at the time of communication connection and communication disconnection from the terminal that is connected to the mobile access point from a plurality of the terminals to generate a learning model;
The information when the mobile access point moves is analyzed based on the learning model, and the influence area that affects the switching of the communication connection of the terminal due to the movement of the mobile access point or the terminal that is affected by the switching And an analysis unit for transmitting the estimation result to the base station;
The communication system according to claim 1, further comprising:

(Supplementary Note 3) The terminal
When communication connection and communication disconnection to the mobile access point, information including the location of its own terminal is transmitted to the control device,
The mobile access point is
When the information of the own device and the terminal are connected to communicate with each other, the information including the location of the terminal and the own access point is transmitted to the control device,
The base station is
When the terminal disconnects the communication connection with the mobile access point, the terminal and the information of the terminal at the time of the disconnection and the mobile access point are transmitted to the control device,
The learning unit of the control device
The information received from the terminal, the mobile access point, and the base station is stored in a database, the information on the movement of the mobile access point is learned using the database, and the learning model is generated. The communication system according to 2.

(Supplementary Note 4) The learning unit of the control device includes:
The access point identifier when the terminal and the access point are connected to and disconnected from the mobile access point, the time when connected and disconnected, the position of the terminal when connected, and the mobile when connected The communication system according to appendix 2 or 3, wherein the learning speed is collected and the collected information is merged according to time to create learning data.

(Supplementary Note 5) The learning unit of the control device includes:
Based on the information collected from the terminal and the mobile access point, calculate the information of the traveling direction of the mobile body, the distance between the mobile body and the terminal, the time during the connection between the access point and the terminal, The communication system according to attachment 4, wherein the communication system is added to the learning model.

(Supplementary Note 6) The analysis unit of the control device includes:
Analyzing information when the mobile access point has moved based on the learning model, estimating an influence area that affects the switching of the communication connection of the terminal due to movement of the mobile access point, and calculating the estimation result Notify the base station,
The base station notifies the suppression control notification including the information on the mobile access point to the terminal located in the notified affected area, according to any one of supplementary notes 1 to 5, Communications system.

(Supplementary Note 7) The analysis unit of the control device includes:
Information on the movement of the mobile access point is analyzed based on the learning model, and the terminal located in the influence area that affects the switching of the communication connection of the terminal due to the movement of the mobile access point is estimated. Informing the base station of the estimated identifier of the terminal;
The communication system according to any one of appendices 2 to 5, wherein the base station notifies the notified terminal of a suppression control notification including information on the mobile access point.

(Supplementary Note 8) Controlling switching of the communication connection of the terminal of a communication system including a base station, a moving mobile access point, and a terminal that performs wireless communication by switching communication connection between the base station and the mobile access point In the control unit
Based on the information on the terminal and the information on the mobile access point, the influence area that affects the switching of the communication connection of the terminal due to the movement of the mobile access point or the terminal that is affected by the switching is estimated, and the estimation A control apparatus that transmits a result to the base station.

(Supplementary note 9) The communication system including a mobile access point that moves, a terminal that performs wireless communication by switching a communication connection between a base station and the mobile access point, and a control device that controls switching of the communication connection of the terminal At the base station
When the terminal disconnects the communication connection with the mobile access point, the terminal and the information of the terminal at the time of the disconnection and the access point are transmitted to the control device,
Based on the information on the affected area that affects the switching of the communication connection of the terminal due to the movement of the mobile access point notified from the control device, the terminal located in the affected area is extracted, and the extracted terminal On the other hand, the base station which notifies the suppression control notification containing the information of the said mobile access point.

(Additional remark 10) The said communication system including the mobile access point which moves, the terminal which switches the communication connection of a base station and the said mobile access point, and carries out radio | wireless communication, and the control apparatus which controls the switching of the said communication connection of the said terminal At the base station
When the terminal disconnects the communication connection with the mobile access point, the terminal and the information of the terminal at the time of the disconnection and the mobile access point are transmitted to the control device,
Based on the information of the terminal located in the influence area that affects the switching of the communication connection of the terminal due to the movement of the mobile access point notified from the control device, the mobile access point information is given to the terminal. A base station characterized by notifying a suppression control notification including.

(Supplementary note 11) In the mobile access point of the communication system including a terminal that wirelessly communicates by switching a communication connection between a base station and a moving mobile access point, and a control device that controls switching of the communication connection of the terminal,
When the information of the own device and the terminal are connected to communicate with each other, the information including the location of the terminal and the own access point is transmitted to the control device,
A mobile access point that periodically notifies the control device of information including the location of the local access point when the local access point moves.

(Supplementary Note 12) A base station, a mobile access point that moves, a terminal that performs wireless communication by switching communication connection between the base station and the mobile access point, and a control device that controls switching of the communication connection of the terminal; At the terminal of the communication system comprising
When communication connection and communication disconnection to the mobile access point, information including the location of its own terminal is transmitted to the control device,
When a suppression control notification is received from the base station to affect switching of the communication connection of the terminal due to movement of the mobile access point, switching of communication to the mobile access point included in the suppression control notification is performed. A terminal characterized by suppressing.

(Supplementary Note 13) After the switching of the communication to the mobile access point by the suppression control notification is suppressed, the suppression control is canceled after the invalidation time period included in the suppression control notification elapses. The listed terminal.

(Supplementary Note 14) After suppressing switching of communication to the mobile access point according to the suppression control notification, the user of the own terminal determines the presence or absence of the boarding on the mobile mounted with the mobile access point, and 14. The terminal according to appendix 12 or 13, wherein the user cancels the suppression control when boarding the mobile body.

(Supplementary Note 15) A base station, a mobile access point that moves, a terminal that performs wireless communication by switching communication connection between the base station and the mobile access point, and a control device that controls switching of the communication connection of the terminal; In the communication method of the communication system including
Based on the information on the terminal and the information on the mobile access point, the control device determines an influence area that influences switching of the communication connection of the terminal due to movement of the mobile access point or a terminal that is affected by the switching. Estimating, transmitting the estimation result to the base station,
The base station transmits a suppression control notification including information on the mobile access point to the terminal based on the received information on the affected area or information on the affected terminal,
The terminal suppresses switching of communication connection to the corresponding mobile access point based on the received suppression control notification.
A communication method characterized by

DESCRIPTION OF SYMBOLS 100 Communication system 101 Control apparatus 110 Terminal 111 Learning apparatus 112 Analysis apparatus 120 Base station 130 Mobile access point (AP)
201, 301, 402 IP-IF control unit 202 Collection information database (DB)
203 Data processing unit 204 Learning unit 205, 302 Model DB
303 Mobile AP Information DB
304 Mobile AP influence area analysis unit (Mobile AP influence terminal analysis unit)
401 wireless communication unit 403 mobile AP switching notification reception unit 404 mobile AP influence confirmation unit 405 suppression control instruction unit 501 inter-base station communication unit 502, 601 AP communication unit 503 communication switching unit 504 AP suppression control unit 505 terminal information collection control unit 602 Network communication unit 603 Terminal information reception unit 604 Terminal / mobile information transmission unit 605 Mobile AP information collection control unit 701 Input / output interface (IF)
702, 802 Network IF
703, 803, 902 CPU
704, 805, 903 Memory 801, 901 RF circuit A Core network B Internet C Mobile body (bus)
S Suppression control notification M Wireless communication with base station (LTE)
m Base station area W Wireless communication with mobile AP (WiFi)
w Affected area of mobile AP

Claims (7)

Communication including a base station, a mobile access point that moves, a terminal that performs wireless communication by switching communication connection between the base station and the mobile access point, and a control device that controls switching of the communication connection of the terminal In the system
Based on the information on the terminal and the information on the mobile access point, the control device determines an influence area that influences switching of the communication connection of the terminal due to movement of the mobile access point or a terminal that is affected by the switching. Estimating, transmitting the estimation result to the base station,
The base station transmits a suppression control notification including information on the mobile access point to the terminal based on the received information on the affected area or information on the affected terminal,
The terminal suppresses switching of communication connection to the corresponding mobile access point based on the received suppression control notification.
A communication system characterized by the above. The controller is
With the movement of the mobile access point, a learning unit that collects information at the time of communication connection and communication disconnection from the terminal that is connected to the mobile access point from a plurality of the terminals to generate a learning model;
The information when the mobile access point moves is analyzed based on the learning model, and the influence area that affects the switching of the communication connection of the terminal due to the movement of the mobile access point or the terminal that is affected by the switching And an analysis unit for transmitting the estimation result to the base station;
The communication system according to claim 1, further comprising: In a control device for controlling switching of the communication connection of the terminal of a communication system including a base station, a mobile access point that moves, and a terminal that performs wireless communication by switching communication connection between the base station and the mobile access point ,
Based on the information on the terminal and the information on the mobile access point, the influence area that affects the switching of the communication connection of the terminal due to the movement of the mobile access point or the terminal that is affected by the switching is estimated, and the estimation A control apparatus that transmits a result to the base station. In the base station of the communication system, including a mobile access point that moves, a terminal that wirelessly communicates by switching communication connection between a base station and the mobile access point, and a control device that controls switching of the communication connection of the terminal,
When the terminal disconnects the communication connection with the mobile access point, the terminal and the information of the terminal at the time of the disconnection and the mobile access point are transmitted to the control device,
Based on the information on the affected area that affects the switching of the communication connection of the terminal due to the movement of the mobile access point notified from the control device, the terminal located in the affected area is extracted, and the extracted terminal On the other hand, the base station which notifies the suppression control notification containing the information of the said mobile access point. In the mobile access point of the communication system including a base station and a terminal that wirelessly communicates by switching communication connection between the mobile access point that moves and a control device that controls switching of the communication connection of the terminal,
When the information of the own device and the terminal are connected to communicate with each other, the information including the location of the terminal and the own access point is transmitted to the control device,
A mobile access point that periodically notifies the control device of information including the location of the local access point when the local access point moves. Communication including a base station, a mobile access point that moves, a terminal that performs wireless communication by switching communication connection between the base station and the mobile access point, and a control device that controls switching of the communication connection of the terminal At the terminal of the system
When communication connection and communication disconnection to the mobile access point, information including the location of its own terminal is transmitted to the control device,
Switching of communication to the mobile access point included in the suppression control notification when the suppression control notification indicating that the movement of the mobile access point affects the switching of the communication connection of the terminal is received from the base station A terminal characterized by deterring. Communication including a base station, a mobile access point that moves, a terminal that performs wireless communication by switching communication connection between the base station and the mobile access point, and a control device that controls switching of the communication connection of the terminal In the communication method of the system,
Based on the information on the terminal and the information on the mobile access point, the control device determines an influence area that influences switching of the communication connection of the terminal due to movement of the mobile access point or a terminal that is affected by the switching. Estimating, transmitting the estimation result to the base station,
The base station transmits a suppression control notification including information on the mobile access point to the terminal based on the received information on the affected area or information on the affected terminal,
The terminal suppresses switching of communication connection to the corresponding mobile access point based on the received suppression control notification.
A communication method characterized by

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