WO2023095274A1 - Radio communication control device, terminal, and radio communication control method - Google Patents

Radio communication control device, terminal, and radio communication control method Download PDF

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Publication number
WO2023095274A1
WO2023095274A1 PCT/JP2021/043320 JP2021043320W WO2023095274A1 WO 2023095274 A1 WO2023095274 A1 WO 2023095274A1 JP 2021043320 W JP2021043320 W JP 2021043320W WO 2023095274 A1 WO2023095274 A1 WO 2023095274A1
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WIPO (PCT)
Prior art keywords
base station
communication
terminal
density
terminals
Prior art date
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PCT/JP2021/043320
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French (fr)
Japanese (ja)
Inventor
健吾 川▲崎▼
優治 小松崎
裕翔 榊
浩志 大塚
Original Assignee
三菱電機株式会社
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2021/043320 priority Critical patent/WO2023095274A1/en
Priority to JP2022521583A priority patent/JP7209899B1/en
Publication of WO2023095274A1 publication Critical patent/WO2023095274A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H04W48/06—Access restriction performed under specific conditions based on traffic conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0457—Variable allocation of band or rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices

Definitions

  • the present disclosure relates to a radio communication control device, a terminal, and a radio communication control method.
  • Patent Document 1 a wireless communication system in which a plurality of user terminals can connect to a network via a specific base station.
  • This radio communication system is intended to improve the throughput of the entire radio communication system by selecting user terminals with high received power as terminals to be connected to the base station at the same time from among a plurality of user terminals.
  • An object of the present disclosure is to solve the above problems, and to provide a wireless communication control device, a terminal, and a wireless communication control method capable of suppressing crowding of objects.
  • a radio communication control apparatus includes a determination unit that determines the density of objects in the vicinity of a base station that performs wireless communication with a plurality of terminals, a communication restriction unit for restricting wireless communication, wherein the communication restriction unit restricts wireless communication between the plurality of terminals and the base station based on the determination result of the determination unit.
  • the wireless communication control device According to the wireless communication control device, the terminal, and the wireless communication control method of the present disclosure, it is possible to suppress the crowding of objects.
  • FIG. 1 is a block diagram showing part of the configuration of a radio communication system according to Embodiment 1;
  • FIG. 2 is a diagram illustrating an example of a hardware configuration of a server according to Embodiment 1;
  • FIG. 3 is a diagram showing another example of the hardware configuration of the server according to Embodiment 1;
  • FIG. 4 is a flowchart showing processing performed by a server according to Embodiment 1;
  • 2 is a block diagram showing part of the configuration of a radio communication system according to Embodiment 2;
  • FIG. 9 is a flowchart showing processing performed by a server according to Embodiment 2;
  • FIG. 12 is a block diagram showing part of the configuration of a radio communication system according to Embodiment 3;
  • FIG. 12 is a block diagram showing part of the configuration of a terminal according to Embodiment 3;
  • FIG. 13 is a diagram illustrating an example of a hardware configuration of a terminal according to Embodiment 3;
  • FIG. 12 is a diagram showing another example of a hardware configuration of a terminal according to Embodiment 3;
  • FIG. 10 is a flowchart showing processing performed by a terminal according to Embodiment 3;
  • FIG. 1 is a block diagram showing a part of the configuration of radio communication system 100 according to Embodiment 1.
  • a wireless communication system a plurality of terminals T102-1 to T102-N and terminals T103-1 to T103-N communicate with the server 101 via the base stations 102 and 103 and the network N.
  • a connectable wireless communication system 100 will be described.
  • a wireless communication system 100 includes a server 101 connected to a network N, a plurality of base stations 102 and 103 connected to the server 101 via the network N, and a server via the network N. 101, a plurality of terminals T102-1 to T102-N connected to the network N via the base station 102, and a plurality of terminals T102-1 to T102-N connected to the network N via the base station 103. terminal T103-1 to terminal T103-N.
  • the server 101 communicates with the base stations 102 and 103 via the network N, and connects the terminals T102-1 to T102-N and the terminals T103-1 to T103-N connected to the base stations belonging to the network N. Control the communication speed.
  • the server 101 acquires information from the sensors 121 and 122 via the network N, and transmits the information acquired from the sensors 121 and 122 to the terminals T102-1 to T102-N connected to the base stations belonging to the network N. and to control the communication speed of terminals T103-1 to T103-N.
  • the server 101 constitutes a wireless communication control device.
  • the network N is a communication network, such as the Internet, WAN, LAN, etc., for communicating between a plurality of connected devices.
  • the base stations 102 and 103 have antennas and transceivers (not shown), are connected to the network N, and communicate with each other.
  • the base stations 102 and 103 are indoor base stations located in different rooms.
  • the base stations 102 and 103 selectively use one of a plurality of pre-assigned communication methods (communication standards) with different communication speeds to select a communication method from a plurality of terminals T102-1 to T102-.
  • N and the terminal T103-1 perform wireless communication with the terminal T103-N.
  • the sensor 121 is placed near the base station 102 and acquires information about the density of people around the base station 102, for example, in the room where the base station 102 is placed.
  • a sensor 122 is placed near the base station 103 to obtain information about the density of people around the base station 103, eg, in the room in which the base station 103 is placed.
  • the sensors 121 and 122 are image sensors such as cameras that acquire image information around the base stations 102 and 103, and acquire image information for detecting the positions of people around the base stations 102 and 103. It acquires and outputs the acquired image information to the server 101 .
  • the server 101 determines the density of people from the image information sent, and outputs a signal to the base station located in the area with high density of people to limit the communication speed with the terminal.
  • the determination unit 111 of the server 101 has a table shown in Table 1 below, and grasps the correspondence between areas or rooms in which base stations are arranged, base station IDs, camera IDs, and camera image IDs. ing.
  • the determination unit 111 determines the density of people based on the received camera image, uses Table 1 to grasp the correspondence between the camera ID, the camera image ID, and the base station ID, and determines the density. Accordingly, the base station ID of the room to be band-limited is specified.
  • the sensors 121 and 122 may send the camera ID and the camera image to the determination unit 111 without going through the base station, or may communicate with the base station to obtain the camera ID and the base station ID through the base station.
  • camera images may be sent to the determination unit 111 as a set.
  • the determination unit 111 can grasp the correspondence relationship between the camera ID, the base station ID, and the camera image.
  • Table 1 may be updated with the information.
  • the camera image is the image data itself, and the camera image ID is information for identifying camera images, and indicates, for example, the file name of the camera image.
  • the determination unit 111 refers to the camera image sent from the sensor 121, determines the density of “people”, and controls the communication speed between the base station 102 and the terminals T102-1 to T102-N. do. As described above, for example, the determination unit 111 communicates with the base station 102 and the sensor 121 to receive the camera image, the information of the camera image ID, the camera ID, and the base station ID, and determines the density of “people”. It controls the communication speed of the terminal connected to the base station.
  • Terminals T102-1 to T102-N and terminals T103-1 to T103-N are mobile terminals capable of wireless communication, such as notebook PCs, tablet PCs, and smartphones.
  • a plurality of terminals T102-1 to T102-N and terminals T103-1 to T103-N communicate with each other via the base stations 102 and 103 and the network N.
  • FIG. For example, a terminal T102-1 connected to the base station 102 communicates with a terminal T103-1 connected to the base station 103 via the base station 102, the network N and the base station 103.
  • Terminals T102-1 to T102-N and terminals T103-1 to T103-N communicate with base stations 102 and 103, and communicate with server 101 via base stations 102 and 103 and network N. conduct.
  • the server 101 the base stations 102 and 103, the sensors 121 and 122, and the plurality of terminals T102-1 to T102-N and the terminals T103-1 to T103-N connect the network N. Communication is possible via
  • FIG. 2 is a diagram showing an example of the hardware configuration of the server 101
  • FIG. 3 is a diagram showing another example of the hardware configuration of the server 101.
  • the server 101 has a processing circuit S1 that is dedicated hardware.
  • the processing circuit S1 is configured by, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof.
  • the server 101 has a memory M1 and a processor P1, and is configured such that the processor P1 reads and executes a program stored in the memory M1.
  • each function of the server 101 is implemented by the processing circuit S1 or the processor P1, which is dedicated hardware, executing a program.
  • the server 101 has a congestion information acquisition section 114 , a determination section 111 and a communication restriction section 112 .
  • the functions of the determination unit 111, the congestion information acquisition unit 114, and the communication restriction unit 112 are realized by the processing circuit S1 (see FIG. 2) or the processor P1 (see FIG. 3), which is the dedicated hardware described above, executing a program. be done.
  • the identification information acquisition unit 113 is connected to the base stations 102 and 103 of the terminals T102-1 to T102-N and the terminals T103-1 to T103-N from the base stations 102 and 103 via the network N. Identification information for identifying the terminal is acquired so that the base station to which the terminal is connected can be identified. For example, the identification information acquiring unit 113 acquires identification information of terminals connected to the base station in association with information for identifying the base station (base station ID).
  • the crowd information acquisition unit 114 acquires information about the density of people around the base stations 102 and 103 from the sensors 121 and 122 via the network N.
  • the congestion information acquisition unit 114 acquires image information around the base stations 102 and 103 from the sensors 121 and 122 at predetermined time intervals (for example, every minute).
  • the determination unit 111 calculates the density of people around the base stations 102 and 103 based on the information about the density of people around the base stations 102 and 103 acquired by the density information acquisition unit 114 . For example, the determination unit 111 calculates the number of people currently around the base stations 102 and 103 and the distance between them, the surroundings of the base stations 102 and 103, and The density of people is calculated from the size of the (room).
  • the determining unit 111 determines the density of people around the base station 102 based on the information acquired from the sensor 121 . For example, based on the information obtained from the sensor 121, the determination unit 111 determines whether the density of people around the base station 102 is equal to or greater than a predetermined threshold set in advance by the manager of the room. do. Specifically, based on the image information acquired from the sensor 121, the determination unit 111 determines whether or not the number of people whose presence is detected around the base station 102 is equal to or greater than a predetermined threshold. In the first embodiment, when "the density is equal to or greater than the threshold", it means that there are at least two or more objects in the vicinity.
  • the communication restriction unit 112 selects a plurality of terminals T102-1 to T102-N connected to the base stations 102 and 103. and wireless communication between the terminal T103-1 and the terminal T103-N. For example, when the determination unit 111 determines that the density of people around the base station 102 is equal to or greater than a predetermined threshold, the communication restriction unit 112 determines that the base station 102 is between terminals T102-1 and T102-N.
  • the base station 102 and a plurality of terminals connected thereto A signal is transmitted from T102-1 to base station 102 to restrict radio communication with terminal T102-N.
  • the communication control unit 112 determines that the base station 103 communicates with the terminal T103-1 to the terminal T103-N.
  • a signal is transmitted to the base station 103 to communicate at the maximum communication speed without limiting communication.
  • the communication restriction unit 112 restricts the radio communication between the terminals T102-1 to T102-N and the terminals T1-3-1 to T103-N connected to the base stations 102 and 103 when the density of people around the base stations 102 and 103 is low.
  • high-speed communication is performed in 5 bands (channels) in the 5G system, and when the density of people is limited to a predetermined threshold or more, low-speed communication is performed in 1 band in the LTE system.
  • the communication method includes a communication standard, a generation of a mobile communication system, and the like.
  • the communication restriction unit 112 determines that the base station 102 is the terminal T102-1 to the terminal T102-N.
  • the communication method used for wireless communication between the base stations 102, 103 and the plurality of terminals T102 to a method that enables the fastest communication, or by selecting all pre-allocated communication bands, -1 transmits to the base station 102 a signal that relaxes restrictions on wireless communication between the terminal T102-N and the terminal T103-1 to the terminal T103-N.
  • “the density is less than the threshold” includes the case where there are no objects in the surroundings and the case where there is only one object in the surroundings.
  • Base stations 102 and 103 use the communication scheme and communication band according to the signal acquired from communication restriction section 112 to establish communication between terminal T102-1 and terminal T102-N and between terminal T103-1 and terminal T103-N.
  • wireless communication For example, when the density of people around the base station 102 is equal to or greater than a predetermined threshold, the base station 102 selects a communication method with a low communication speed or a communication band with a low communication speed between the terminals T102-1 to T102-N. Perform wireless communication in a restricted state. In addition, for example, when the density of people around the base station 102 is less than a predetermined threshold, the base station 102 connects terminals T102-1 to T102-N and terminals T103-1 to T103-N. High-speed wireless communication is performed using the communication standard with the highest communication speed among all communication methods and communication bands that can be used in wireless communication, and using the maximum communication band that can be used by the terminal.
  • communication restriction section 112 allows base stations 102 and 103 to restrict radio communication between terminal T102-1 to terminal T102-N and terminal T103-1 to terminal T103-N. communication is restricted.
  • server 101 allows base stations 102 and 103 to connect terminals T102-1 to T102-N and terminals T103-1 to T103-N according to the density of people around base stations 102 and 103. restricts wireless communication between
  • server 101 controls base stations 102 and 103 to operate from terminal T102 to terminal T102-N or terminal T103-1 according to the density of people around base stations 102 and 103. to the terminal T103-N.
  • the server 101 can access the network N via the base station 102 from the terminal T102-.
  • the server 101 can access the network N via the base station 102 from the terminal T102-.
  • the server 101 can access the network N via the base station 102 from the terminal T102-.
  • FIG. 4 is a flow chart showing processing performed by the server 101 .
  • the server 101 first determines whether or not information about the density of people has been obtained from the sensors 121 and 122 (step ST11).
  • server 101 receives information about the density of people around base stations 102 and 103 from sensors 121 and 122 via network N in order to determine the density of people around base stations 102 and 103. It is determined whether or not it has been acquired.
  • step ST11 if information has not been obtained from the sensors 121 and 122 (NO in step ST11), the server 101 waits until information is obtained from the sensors 121 and 122.
  • step ST11 if information has been acquired from sensors 121 and 122 (YES in step ST11), server 101 calculates the density of people around base stations 102 and 103 based on the acquired information. (Step ST12). For example, in this process, the server 101 calculates the number of people around the base station 102 based on image information acquired from the sensors 121 and 122 .
  • the server 101 determines whether the calculated density of people is greater than or equal to a predetermined threshold (step ST13). In this process, based on the calculated density of people, the server 101 determines the distance between the terminals T102-1 to T102-N and the terminals T103-1 to T103-N within the area of the base stations 102 and 103. It is determined whether or not it is necessary to restrict wireless communication.
  • step ST13 if the density of people is less than the predetermined threshold (NO in step ST13), the server 101 sends to the base stations 102 and 103 terminal T102-1 to terminal T102-N and terminal T103-1. determines to release the restriction on radio communication with the terminal T103-N (step ST15).
  • the server 101 determines the base stations 102 and 103 and the terminal T102-1 to the terminal T102-N and the terminal T103. -1 to terminal T103-N, it has been decided to provide users with high-speed communication without imposing restrictions on the reduction in communication speed.
  • step ST13 if the density of people is equal to or greater than the predetermined threshold (YES in step ST13), the server 101 sends the base stations 102 and 103 from terminal T102-1 to terminal T102-N and terminal T103-1. determines to restrict radio communication with the terminal T103-N (step ST14).
  • the server 101 selects base stations 102 and 103 and terminal T102-1 to terminal T102-N and terminal T103. -1 to the terminal T103-N, it has been decided to impose a limit on the speed of the wireless communication.
  • two communication methods are assigned to wireless communication between the base station 102 and the terminal T102-1: a first communication method and a second communication method capable of communicating at a higher communication speed than the first communication method. If so, in this process, the server 101 restricts the use of the second communication method to the base station 102 and determines to use the first communication method whose communication speed is lower than that of the second communication method.
  • the server 101 After performing the process of step ST14 or step ST15, the server 101 requests the base stations 102 and 103 to comply with the restriction of wireless communication from the terminal T102-1 to the terminal T102-N and from the terminal T103-1 to the terminal T103-N. send a signal. For example, server 101 transmits to base station 102 a signal corresponding to a communication method that can be used for wireless communication with terminal T102-1 (step ST16). After performing the process of step ST16, the server 101 returns the process to step ST11. When the base stations 102 and 103 receive the signal corresponding to the communication restriction from the server 101, the base stations 102-1 and 103-N perform wireless communication with the terminal T102-1 and the terminal T103-N according to the communication restriction. .
  • server 101 according to Embodiment 1 allows base stations 102 and 103 to move from terminal T102-1 to terminal T102-N and terminal T103-1 according to the density of people around base stations 102 and 103. to select the communication method and communication band used for wireless communication with the terminal T103-N.
  • the base stations 102 and 103 are connected from the terminal T102-1 to the terminal T102-N and from the terminal T103-1 to the terminal T103-. It is possible to limit the communication speed when performing wireless communication with N. A user whose communication speed is limited feels uncomfortable with the slow communication, and moves to an area where the communication band is not limited.
  • the server 101 according to Embodiment 1 is capable of transmitting the users of the terminals T102-1 to T102-N and the terminals T103-1 to T103-N from the vicinity of the base stations 102 and 103 to another location.
  • the server 101 By encouraging people to move, it is possible to reduce the density of people.
  • By controlling the density of people it is possible to prevent the spread of viruses and promote efficiency through equal use of facilities.
  • server 101 transmits a signal corresponding to an available communication method to base stations 102 and 103, and base stations 102 and 103 transmit signals corresponding to available communication methods from server 101.
  • the terminal T102-1 communicates with the terminal T102-N and the terminal T103-1 communicates with the terminal T103-N using the communication method corresponding to the signal. It is not limited to this.
  • a wireless communication system only needs to be configured to restrict wireless communication between a base station and a terminal by a communication restriction unit.
  • the terminal may be configured to transmit information about available communication bands to the terminal via a device other than the base station, or via the base station It may be configured to transmit information about available communication methods to the terminal, or may be configured to transmit information about available communication methods to the terminal via a device other than the base station. may be
  • the use of the part of the communication method or the communication band is restricted by the display device (not shown) of the terminal. and information prompting movement to a location other than the vicinity of the currently connected base station (for example, the vicinity of another base station), or both of the terminal T102-1 and the terminal T102-N. It may be configured to notify any user of terminals T103-1 to T103-N. With this configuration, users of terminals T102-1 to T102-N and terminals T103-1 to T103-N, for which the use of some communication methods and communication bands are restricted, can be transferred to different locations. movement can be promoted more efficiently.
  • the determination unit 111 of the server 101 determines whether the density of people around the base stations 102 and 103 is equal to or greater than a predetermined threshold based on information from the sensors 121 and 122. is determined, and communication restriction section 112 restricts the communication method and communication band used by base stations 102 and 103 based on the determination result of determination section 111, but is not limited to this.
  • the radio communication control device may be configured such that the communication restriction unit selects the communication method and communication band used by the base station based on the density of people around the base station determined by the determination unit.
  • the determination unit determines the density of people around a plurality of base stations, and the communication restriction unit determines the density of people in a base station with a relatively low density of people.
  • the communication method and communication band to be used by the base station may be selected so that the communication method and communication band that enable wireless communication at a higher speed than the base station with a higher power can be used.
  • an image sensor that acquires image information around the base stations 102 and 103 has been described as an example of the sensors 121 and 122, but the present invention is not limited to this.
  • the crowd information acquisition unit only needs to be configured to be able to acquire information about the degree of crowding of people around the base station. It may be a carbon dioxide sensor (carbon dioxide concentration meter) that acquires information on carbon dioxide concentration, or a temperature sensor such as an infrared sensor that acquires information on temperature by detecting heat emitted by people around the base station. (heat sensor), a radar that detects people around the base station, or an optical sensor that is installed on a seat around the base station and detects a person sitting on the seat. may
  • the sensors 121 and 122 acquire information about the density of people around the base stations 102 and 103, but the present invention is not limited to this.
  • the congestion information acquisition unit may be configured to be able to acquire information about the density of objects of the same type as the terminal or objects moving with the terminal in the vicinity of the base station. may acquire information about the density of terminals around the base station, or may acquire information about the density of vehicles such as automobiles and bicycles around the base station.
  • Mobile terminals that are remotely controlled or autonomously operated around the base station, specifically, security robots, drones, etc. Specifically, it may be a security guard, a worker, a guide, etc. wearing the same equipment.
  • An image sensor that
  • the sensors 121 and 122 are connected to the server 101 via the network N, but the present invention is not limited to this.
  • the congestion information acquisition unit may be provided so that the determination unit can acquire information about the density of people around the acquired base station. It may be connected or directly connected to the base station.
  • the antenna of the base station may be a phased array antenna capable of wireless communication using different communication methods and communication bands for each terminal connected to the base station.
  • the determination unit determines locations where the density of people is equal to or greater than a predetermined threshold and locations where the density of people is less than the predetermined threshold around a specific base station based on information from sensors.
  • the communication restriction unit determines that the terminal is located within a predetermined angular range where the density of people is equal to or greater than a predetermined threshold with respect to the position of the antenna. It becomes possible to select the communication method and communication band to be used for each terminal so as to limit the communication method and communication band to be used in wireless communication.
  • base stations 102 and 103 use a communication method and a communication band according to the signal acquired from communication restriction section 112, terminal T102-1 to terminal T102-N and terminal T103-1. to the terminal T103-N.
  • the communication method and communication band for wireless communication between the terminal T103-1 and the terminal T103-N are not limited.
  • the wireless communication system may be configured to perform wireless communication between the base station and the terminal using the communication method and communication band selected by the communication restriction unit.
  • a signal corresponding to the communication method and communication band selected by the communication restriction unit is transmitted to the terminal via the base station, and the communication method and communication band for wireless communication between the base station and the terminal are restricted by the terminal. It may be configured as
  • the server 101 has the determination unit 111 and the communication restriction unit 112, but the present invention is not limited to this.
  • the determination unit and the communication restriction unit may be provided in any configuration of a wireless communication system including a base station and a terminal. may be provided in other devices that do not For example, when the determination unit and the communication restriction unit are provided in the base station, the base station constitutes the radio communication control device in the first embodiment.
  • FIG. 5 is a block diagram showing part of the configuration of radio communication system 200 according to Embodiment 2.
  • the radio communication system 200 according to Embodiment 2 is different from the radio communication system 100 according to Embodiment 1 in that the dense information acquisition units 222 and 223 included in the base stations 202 and 203 are the targets around the base stations 202 and 203.
  • the difference is that the information about the density of the terminal T202-N from the terminal T202-1 and the terminal T203-N from the terminal T203-1 as objects is acquired, and the description of the same contents as in the first embodiment is omitted.
  • a wireless communication system 200 includes a server 201 connected to a network N, a plurality of base stations 202 and 203 connected to the server 201 via the network N, and via the base station 202 A plurality of terminals T202-1 to T202-N connected to the network N and a plurality of terminals T203-1 to T203-N connected to the network N via the base station 203 are provided.
  • the base stations 202 and 203 have antennas, transceivers, and congestion information acquisition units 222 and 223, are connected to the network N, respectively, and communicate with each other.
  • the base stations 202 and 203 perform wireless communication between the terminals T202-1 and T202-N and between the terminals T203-1 and T203-N
  • the crowded information acquisition units 222 and 223 receive information from the terminal T202-1.
  • information on the density of people around the base stations 202 and 203 is acquired via the antenna.
  • the information about the density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base stations 202 and 203 acquired by the congestion information acquisition units 222 and 223 includes the terminal T202 -1 to the terminal T202-N and from the terminal T203-1 to the terminal T203-N when performing wireless communication with the base stations 202 and 203, information propagation time, radio wave intensity, connected terminal T202-1 Information such as the number of terminals T202-N and terminals T203-1 to T203-N can be considered.
  • the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base stations 202 and 203 are high, generally, the terminals T202-1 to T202-N and the terminals T202-N When the terminals T203-1 to T203-N communicate with the base stations 202 and 203 by radio, phenomena such as an increase in information propagation time and a decrease in radio wave intensity occur.
  • the radio communication system 200 uses the congestion information acquisition unit 222. , 223 monitor the propagation time of information, the radio wave intensity, the number of terminals T202-1 to T202-N and the number of terminals T203-1 to T203-N to be connected, etc. It may be configured to acquire information about the degree of density, and each of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N monitors information propagation time, radio wave intensity, and the like.
  • Each of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N transmits a signal corresponding to the information propagation time, radio wave intensity, etc. to the base stations 202 and 203.
  • the congestion information acquisition units 222 and 223 may be configured to acquire information on the degree of congestion around the terminal T202-1 to the terminal T202-N and from the terminal T203-1 to the terminal T203-N.
  • the server 201 has a determination section 211 and a communication restriction section 212 .
  • the functions of the determination unit 211 and the communication restriction unit 212 are realized by executing a program by the processing circuit S1 (see FIG. 2) or the processor P1 (see FIG. 3), which is the dedicated hardware described above.
  • the determination unit 211 acquires information about the density of people around the base stations 202 and 203 from the density information acquisition units 222 and 223 via the network N, and based on the acquired information, , the density of the terminal T202-1 to the terminal T202-N and the terminal T203-1 to the terminal T203-N are calculated. Further, the determination unit 211 determines the calculated density of terminals T2.
  • the determining unit 211 determines whether the calculated density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base stations 202 and 203 is equal to or greater than a predetermined threshold. judge. Based on the density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base stations 202 and 203 determined by the determination unit 211, the communication restriction unit 212 determines whether the base stations 202, 203, 203 and the terminal T202-1 to the terminal T202-N and from the terminal T203-1 to the terminal T203-N.
  • the communication restriction unit 212 determines, based on the density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base stations 202 and 203 determined by the determination unit 211, the base station 202 and 203 select a communication method and a communication band to be used for wireless communication between a plurality of terminals T202-1 to T202-N and between terminals T203-1 to T203-N, and a signal corresponding to the selection result. to the base stations 202 and 203.
  • FIG. 6 is a flow chart showing processing performed by the server 201 .
  • the server 201 first checks whether information about the density of the terminal T202-N from the terminal T202-1 or from the terminal T203-1 to the terminal T203-N has been obtained from the congestion information acquisition units 222 and 223. Determine (step ST21). In this process, server 201 determines the number of terminals T202-1 to T202-N and terminals T203-1 to T203-N around base stations 202 and 203.
  • step ST21 if information has not been obtained from the congestion information acquisition units 222 and 223 (NO in step ST21), the server 201 waits until information is acquired from the congestion information acquisition units 222 and 223.
  • step ST21 if information has been acquired from the dense information acquiring units 222 and 223 (YES in step ST21), the server 201 acquires information from the terminals T202-1 to T202-N around the base stations 202 and 203.
  • the density of terminals T203-1 to T203-N is calculated (step ST22).
  • the server 201 performs wireless communication between the base station 202 acquired from the congestion information acquisition unit 222 and the terminal T202-1 to the terminal T202-N or the terminal T203-1 to the terminal T203-N. Based on the actual propagation time, the density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base station 202 is calculated.
  • the server 201 determines the calculated density of terminals T202-1 to T202-N and terminals T203-1 to T203-N (step ST23). For example, the server 201 determines whether or not the calculated density of terminals T202-1 to T202-N and terminals T203-1 to T203-N is equal to or greater than a predetermined threshold. In this process, the server 201 limits the communication method and communication band used by the base stations 202 and 203 in wireless communication between the terminals T202-1 and T202-N and between the terminals T203-1 and T203-N. Deciding whether it is necessary or not.
  • step ST23 if the density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N is less than the predetermined threshold (NO in step ST23), the server 201 process. In the process of step ST23, if the density of terminals T202-1 to T202-N and terminals T203-1 to T203-N is equal to or greater than a predetermined threshold (YES in step ST23), the server 101 performs process.
  • the processing from step ST14 to step ST16 is the same as that of the first embodiment, so the description is omitted.
  • the server 201 is configured to operate terminals around the base stations 202 and 203 based on the information output from the terminals T202-1 to T202-N and from the terminals T203-1 to T203-N.
  • the base stations 202 and 203 it is possible to limit the communication speed when wireless communication is performed from the terminal T202-1 to the terminal T202-N and from the terminal T203-1 to the terminal T203-N. By prompting the users of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N, it is possible to suppress the crowding of people.
  • the base stations 202 and 203 it is possible to limit the communication speed when wireless communication is performed from T202-1 to terminal T202-N and from terminal T203-1 to terminal T203-N, and the terminal T202 from around the base stations 202 and 203 to another location can be restricted. -1 to the terminal T202-N and from the terminal T203-1 to the terminal T203-N, the density around the base stations 202 and 203 can be suppressed.
  • the antenna of the base station may be a phased array antenna capable of acquiring information regarding the direction in which the connected terminal is located.
  • the server can grasp the density of terminals in a predetermined angular range seen from the antenna around the base station, and the number of terminals seen from the antenna of the base station can be grasped. limits the communication method and communication band used in wireless communication for terminals within a predetermined angle range where the density of terminals is high, and limits wireless communication for terminals within a predetermined angle range where the density of terminals is low.
  • the phased array antenna constitutes a congestion information acquisition unit that acquires information about the density of objects around the base station. Also, the determination unit may determine the degree of density of terminals around the base station based on information from terminals acquired by a sensor such as an image sensor and a phased array antenna.
  • the determination unit 211 of the server 201 has a table shown in Table 2 below, and contains the ID of the area or room where the base station is located, the ID of the base station, and the ID of the terminal connected to the base station. I understand the correspondence.
  • the determination unit 211 determines the density of terminals around the base station based on information about the density of terminals around the base station, and uses Table 2 to determine the correspondence between terminal IDs and base station IDs. is grasped, and terminal IDs to be band-limited are specified according to the degree of congestion.
  • the determination unit 211 determines the terminal density around the base stations 202 and 203. judge.
  • the base station 202 covering the area A recognizes the terminals connected to the base station 202 and transmits identification information (terminal ID) of the terminal connected to the base station 202 to the server 201.
  • communication restriction unit 212 determines, for example, the distance between terminals within a predetermined angular range where the density of terminals is high and base station 202 when viewed from the antenna of base station 202. limit the communication speed between
  • the server determines a place with a high density of people based on the image information from the image sensor, and determines the location within a predetermined angle range including the place with a high density of people as viewed from the antenna of the base station.
  • Wireless communication between the terminal and the base station may be restricted.
  • the dense information acquisition units 222 and 223 perform wireless communication between the base stations 202 and 203 from the terminal T202-1 to the terminal T202-N and from the terminal T203-1 to the terminal T203-N.
  • the terminal T202-1 to the terminal T202-N and the terminal T203 around the base stations 202 and 203 -1 to terminal T203-N through the antenna but is not limited to this.
  • the crowd information acquisition unit has a sensor that acquires information about the density of people around the base station, and the determination unit acquires the density of people around the base station acquired from the sensor and It may be configured to determine the density of terminals around the base station obtained from the output information of the terminals, and the density of people or terminals around the base station from the obtained information.
  • the server 201 has the determination unit 211 and the communication restriction unit 212, but is not limited to this.
  • the server may have a configuration other than the determination unit 211 and the communication restriction unit 212.
  • the server acquires information about the density of objects around the base station from the density information acquisition unit of the base station. and acquires identification information for identifying a terminal connected to each of a plurality of base stations so that the base station to which the terminal is connected can be identified. You may have the identification information acquisition part which carries out.
  • FIG. 7 is a block diagram showing part of the configuration of radio communication system 300 according to Embodiment 3
  • FIG. 3 is a block diagram showing a part of the configuration of a terminal T303-N from FIG.
  • terminal T302-1 to terminal T302-N and terminal T303-1 to terminal T303-N perform radio communication with each other in contrast to radio communication system 100 according to Embodiment 1.
  • the terminals T302-1 to T302-N and the terminals T303-1 to T303-N respectively determine the density of the terminals T302-1 to T302-N and the terminals T303-1 to T303-N in the vicinity. Based on the determination result, the terminal T302-1 sets the communication method and communication band to be used when communicating between the terminal T302-1 to the terminal T302-N and the terminal T303-1 to the terminal T303-N and the base station. 1 to terminal T302-N and terminal T303-1 to terminal T303-N are selected.
  • a wireless communication system 300 includes a plurality of base stations 302 and 303 connected to a network N, and a plurality of terminals T302-1 to T302-1 connected to the network N via the base station 302. N, and a plurality of terminals T303-1 to T303-N connected to the network N via the base station 303.
  • the base stations 302 and 303 have antennas and transceivers (not shown), are connected to the network N, and communicate with each other.
  • Terminals T302-1 to T302-N and terminals T303-1 to T303-N are connected to base stations 302 and 303 and perform wireless communication with each other via base stations 302 and 303 and network N.
  • a terminal T302-1 connected to the base station 302 communicates with a terminal T303-1 connected to the base station 303 via the base station 302, network N and the base station 303.
  • FIG. 9 is a diagram showing an example of the hardware configuration of terminals T302-1 to T302-N and terminals T303-1 to T303-N.
  • FIG. 10 is a diagram showing another example of the hardware configuration of terminals T303-1 to T303-N;
  • terminals T302-1 to T302-N and terminals T303-1 to T303-N have a processing circuit S3 which is dedicated hardware.
  • the processing circuit S3 is configured by, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof.
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the terminals T302-1 to T302-N and the terminals T303-1 to T303-N have a memory M3 and a processor P3, and execute programs stored in the memory M3. It is configured to be read and executed by processor P3.
  • the functions of terminals T302-1 to T302-N and terminals T303-1 to T303-N are realized by the processing circuit S3 or processor P3, which is dedicated hardware, executing a program. .
  • Terminals T302-1 to T302-N and terminals T303-1 to T303-N have a communication section T31, a determination section T32, and a communication restriction section T33.
  • the functions of the communication unit T31, the determination unit T32, and the communication restriction unit T33 are realized by executing a program by the processing circuit S3 (see FIG. 9) or the processor P3 (see FIG. 10), which is the dedicated hardware described above. .
  • the communication unit T31 performs wireless communication with the base stations 302 and 303. Also, the communication unit T31 performs short-range wireless communication with the communication unit T31 of another terminal using a communication standard such as Bluetooth (registered trademark) without going through the base stations 302 and 303 . In addition, the communication unit T31 performs short-range wireless communication with the communication units T31 of other terminals to obtain information about the density of the surrounding terminals T302-1 to T302-N and the terminals T303-1 to T303-N. Get information.
  • a communication standard such as Bluetooth (registered trademark)
  • the terminal T302-1 to the terminal T302-N and the terminal T303-1 to the terminal T303-N are mobile terminals that move in a vehicle or move with the vehicle, for example, the PC5 system of the fifth generation mobile communication system (5G) Various short-range wireless communication is performed. Further, for example, the communication unit T31 performs short-range wireless communication with the communication unit T31 of another terminal, thereby performing short-range wireless communication between the terminal T302-1 to the terminal T302-N and the terminal T303-1 capable of short-range wireless communication. Get the number of terminals T303-N.
  • the determining unit T32 determines the density of surrounding terminals based on the information about the density of the surrounding terminals, which is acquired by the communication unit T31 performing short-range wireless communication with the communication unit T31 of another terminal. . For example, the determination unit T32 determines in advance the numbers of terminals T302-1 to T302-N and terminals T303-1 to T303-N that are currently capable of short-range wireless communication, which are acquired by the communication unit T31. It is determined whether or not it is equal to or greater than a predetermined threshold value.
  • the communication restriction unit T33 restricts wireless communication between the communication unit T31 and the base station based on the determination result of the determination unit T32. For example, when the determination unit T32 determines that the density of the surrounding terminals T302-1 to T302-N and the terminals T303-1 to T303-N is equal to or greater than a predetermined threshold, the communication restriction unit T33 determines that the base station A communication band with a lower communication speed than other communication bands is selected as a communication band to be used for wireless communication with base station 302, and wireless communication with base station 302 is performed using the selected communication band.
  • a communication method with a lower communication speed than other communication methods is selected as a communication method to be used for wireless communication with the base station 302, and wireless communication with the base station 302 is performed using the selected communication method.
  • FIG. 11 is a flow chart showing the processing performed by the terminal T302-1 as an example.
  • the terminal T302-1 first determines whether or not it has acquired information about the density of surrounding terminals from the communication section T31 of another terminal (for example, T302-2) (step ST31).
  • the terminal T302-1 performs short-range wireless communication with other terminals in the vicinity, and determines whether or not information regarding the density around the terminal T302-1 has been acquired. are judging.
  • step ST31 for example, if other terminals have not acquired information on the degree of congestion (NO in step ST31), the terminal T302-1 waits until it acquires information on the degree of congestion.
  • step ST31 for example, if other terminals have acquired information about the density (YES in step ST31), the terminal T302-1 determines the density of terminals in the vicinity by the determination unit T32 based on the acquired information. is calculated (step ST32). For example, in this process, the terminal T302-1 determines, based on the information acquired by the communication unit T31, the terminal T302-1 to terminal T302-N capable of near field communication and the terminal T303-1 to Calculate the number of terminals T303-N.
  • the terminal T302-1 determines whether or not the density of people calculated by the determination unit T32 is equal to or greater than a predetermined threshold (step ST33). In this process, the terminal T302-1 determines whether or not it is necessary to limit the communication method and communication band used in wireless communication between the base stations 302 and 303 and the terminal T302-1.
  • step ST33 if the density around the terminal T302-1 is less than the predetermined threshold (NO in step ST33), the terminal T302-1 cancels the restriction on wireless communication with the base stations 302 and 303. is determined (step ST35).
  • terminal T302-1 reduces the communication speed of wireless communication between base stations 302 and 303 and terminal T302-1 based on the fact that the density of terminals in the surrounding area is less than a predetermined threshold. It has decided to provide users with high-speed communication without any restrictions.
  • step ST34 if the density of the terminal T302-1 is equal to or greater than the predetermined threshold (YES in step ST33), the terminal T302-1 decides to restrict wireless communication with the base stations 302 and 303.
  • the terminal T302-1 limits wireless communication between the base stations 302 and 303 and the terminal T302-1 based on the fact that the density of terminals in the surrounding area is equal to or greater than a predetermined threshold. have decided.
  • two communication methods are used for wireless communication between the base station 302 and the terminal T302-1: a first communication method and a second communication method capable of communication at a higher communication speed than the first communication method. If possible, in this process, the terminal T302-1 restricts the use of the second communication method when performing wireless communication with the base station 302, and uses the first communication method whose communication speed is lower than that of the second communication method. decide to use
  • the terminal T302-1 After performing the process of step ST34 or step ST35, the terminal T302-1 transmits a signal corresponding to the restriction of wireless communication to the base stations 302 and 303.
  • the server 101 transmits to the base stations 302 and 303 a signal corresponding to the communication method and communication band that can be used for wireless communication (step ST36), and performs wireless communication with the base stations 302 and 303.
  • step ST36 the terminal T302-1 returns the process to step ST31.
  • terminals T302-1 to T302-N and terminals T303-1 to T303-N according to Embodiment 3 are connected to base stations 102 and 103 and terminals T302-N according to the density of terminals in the vicinity. 1 to terminal T302-N and terminal T303-1 to terminal T303-N.
  • wireless communication between the base stations 302 and 303 and the terminal T302-1 to the terminal T302-N and the terminal T303-1 to the terminal T303-N can be performed.
  • the terminals T302-1 to T302-N and the terminals T303-1 to T303-N receive the terminal T302-N, which is currently capable of short-range wireless communication, as information about the density of terminals in the vicinity. 1 to the terminal T302-N and from the terminal T303-1 to the terminal T303-N have been described, but the present invention is not limited to this.
  • a terminal only needs to be able to acquire information about the density of surrounding terminals by performing short-range wireless communication with other terminals.
  • a terminal acquires location information of other terminals through short-range wireless communication. It may be configured to have a positional information acquisition unit (not shown) capable of acquiring positional information of other terminals as information on the degree of density of surrounding terminals.
  • a wireless communication control device can be used, for example, to control wireless communication using mobile terminals and the like.

Abstract

A radio communication control device (101) includes a determination unit (111) that determines the density of objects around a base station (101, 102) performing radio communication with multiple terminals (T1) and a communication limitation unit (112) that limits the radio communication between the multiple terminals (T1) and the base station (101, 102). The communication limitation unit (112) limits the radio communication between the multiple terminals and the base station (101, 102) on the basis of the determination result of the determination unit (111).

Description

無線通信制御装置、端末及び無線通信制御方法Radio communication control device, terminal and radio communication control method
　本開示は、無線通信制御装置、端末及び無線通信制御方法に関する。 The present disclosure relates to a radio communication control device, a terminal, and a radio communication control method.
　従来、複数のユーザ端末が、特定の基地局を介してネットワークに接続可能な無線通信システムが知られている（特許文献１参照）。この無線通信システムは、複数のユーザ端末のうち基地局が同時期に接続する端末として、受信電力が大きいユーザ端末を選択することで、無線通信システム全体のスループットの向上を図っている。 Conventionally, there is known a wireless communication system in which a plurality of user terminals can connect to a network via a specific base station (see Patent Document 1). This radio communication system is intended to improve the throughput of the entire radio communication system by selecting user terminals with high received power as terminals to be connected to the base station at the same time from among a plurality of user terminals.
特開２０１８－１３７５５２号公報JP 2018-137552 A
　しかしながら、特許文献１に記載の無線通信システムでは、例えば、基地局が同時期に接続可能な端末の数が十分に大きい場合、人、端末等の対象物が特定の範囲内において密集する状態となる虞がある。 However, in the wireless communication system described in Patent Literature 1, for example, when the number of terminals that can be connected to the base station at the same time is sufficiently large, objects such as people and terminals may be crowded within a specific range. There is a possibility that
　本開示は、上記課題を解決するものであり、対象物の密集を抑制することができる無線通信制御装置、端末及び無線通信制御方法を提供することを目的とする。 An object of the present disclosure is to solve the above problems, and to provide a wireless communication control device, a terminal, and a wireless communication control method capable of suppressing crowding of objects.
　本開示に係る無線通信制御装置は、複数の端末との間で無線通信を行う基地局の周囲において、対象物の密集度を判定する判定部と、複数の端末と基地局との間での無線通信を制限する通信制限部と、を備え、通信制限部は、判定部の判定結果に基づいて複数の端末と基地局との無線通信を制限することを特徴とするようにしたものである。 A radio communication control apparatus according to the present disclosure includes a determination unit that determines the density of objects in the vicinity of a base station that performs wireless communication with a plurality of terminals, a communication restriction unit for restricting wireless communication, wherein the communication restriction unit restricts wireless communication between the plurality of terminals and the base station based on the determination result of the determination unit. .
　本開示の無線通信制御装置、端末及び無線通信制御方法によれば、対象物の密集を抑制することができる。 According to the wireless communication control device, the terminal, and the wireless communication control method of the present disclosure, it is possible to suppress the crowding of objects.
実施の形態１に係る無線通信システムの構成の一部を示すブロック図である。1 is a block diagram showing part of the configuration of a radio communication system according to Embodiment 1; FIG. 実施の形態１に係るサーバのハードウェア構成の一例を示す図である。2 is a diagram illustrating an example of a hardware configuration of a server according to Embodiment 1; FIG. 実施の形態１に係るサーバのハードウェア構成の別の例を示す図である。FIG. 3 is a diagram showing another example of the hardware configuration of the server according to Embodiment 1; FIG. 実施の形態１に係るサーバが行う処理を示すフローチャートである。4 is a flowchart showing processing performed by a server according to Embodiment 1; 実施の形態２に係る無線通信システムの構成の一部を示すブロック図である。2 is a block diagram showing part of the configuration of a radio communication system according to Embodiment 2; FIG. 実施の形態２に係るサーバが行う処理を示すフローチャートである。9 is a flowchart showing processing performed by a server according to Embodiment 2; 実施の形態３に係る無線通信システムの構成の一部を示すブロック図である。FIG. 12 is a block diagram showing part of the configuration of a radio communication system according to Embodiment 3; 実施の形態３に係る端末の構成の一部を示すブロック図である。FIG. 12 is a block diagram showing part of the configuration of a terminal according to Embodiment 3; 実施の形態３に係る端末のハードウェア構成の一例を示す図である。FIG. 13 is a diagram illustrating an example of a hardware configuration of a terminal according to Embodiment 3; FIG. 実施の形態３に係る端末のハードウェア構成の別の例を示す図である。FIG. 12 is a diagram showing another example of a hardware configuration of a terminal according to Embodiment 3; FIG. 実施の形態３に係る端末が行う処理を示すフローチャートである。10 is a flowchart showing processing performed by a terminal according to Embodiment 3;
　以下、本開示に係る実施の形態について図面を参照しながら詳細に説明する。
実施の形態１．
　先ず、図１を参照して、実施の形態１に係る無線通信システム１００の構成について説明する。図１は、実施の形態１に係る無線通信システム１００の構成の一部を示すブロック図である。実施の形態１においては、無線通信システムの一例として、複数の端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎが基地局１０２，１０３及びネットワークＮを介してサーバ１０１に接続可能な無線通信システム１００について説明する。 Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the drawings.
Embodiment 1.
First, the configuration of a radio communication system 100 according to Embodiment 1 will be described with reference to FIG. FIG. 1 is a block diagram showing a part of the configuration of radio communication system 100 according to Embodiment 1. As shown in FIG. In Embodiment 1, as an example of a wireless communication system, a plurality of terminals T102-1 to T102-N and terminals T103-1 to T103-N communicate with the server 101 via the base stations 102 and 103 and the network N. A connectable wireless communication system 100 will be described.
　実施の形態１に係る無線通信システム１００は、ネットワークＮに接続されているサーバ１０１と、ネットワークＮを介してサーバ１０１に接続されている複数の基地局１０２，１０３と、ネットワークＮを介してサーバ１０１に接続されているセンサ１２１，１２２と、基地局１０２を介してネットワークＮに接続される複数の端末Ｔ１０２－１から端末Ｔ１０２－Ｎと、基地局１０３を介してネットワークＮに接続される複数の端末Ｔ１０３－１から端末Ｔ１０３－Ｎと、を備えている。
　サーバ１０１は、ネットワークＮを介して、基地局１０２，１０３と通信を行い、ネットワークＮに属する基地局に接続される端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎの通信速度を制御する。また、サーバ１０１は、ネットワークＮを介して、センサ１２１，１２２から情報を取得し、センサ１２１，１２２から得た情報をネットワークＮに属する基地局に接続される端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎの通信速度の制御に用いる。なお、実施の形態１において、サーバ１０１は、無線通信制御装置を構成する。 A wireless communication system 100 according to Embodiment 1 includes a server 101 connected to a network N, a plurality of base stations 102 and 103 connected to the server 101 via the network N, and a server via the network N. 101, a plurality of terminals T102-1 to T102-N connected to the network N via the base station 102, and a plurality of terminals T102-1 to T102-N connected to the network N via the base station 103. terminal T103-1 to terminal T103-N.
The server 101 communicates with the base stations 102 and 103 via the network N, and connects the terminals T102-1 to T102-N and the terminals T103-1 to T103-N connected to the base stations belonging to the network N. Control the communication speed. Further, the server 101 acquires information from the sensors 121 and 122 via the network N, and transmits the information acquired from the sensors 121 and 122 to the terminals T102-1 to T102-N connected to the base stations belonging to the network N. and to control the communication speed of terminals T103-1 to T103-N. In addition, in Embodiment 1, the server 101 constitutes a wireless communication control device.
　ネットワークＮは、例えば、インターネット、ＷＡＮ、ＬＡＮ等、接続されている複数の装置間で通信を行うための通信ネットワークである。
　基地局１０２，１０３は、不図示のアンテナ及び送受信機を有しており、それぞれネットワークＮに接続されて、互いに通信を行う。例えば、基地局１０２，１０３は、それぞれ互いに異なる部屋に配置されている室内用の基地局である。また、基地局１０２，１０３は、予め割り当てられている通信速度が異なる複数の通信方式（通信規格）からいずれかの通信方式を選択的に使用して、複数の端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎと無線通信を行う。 The network N is a communication network, such as the Internet, WAN, LAN, etc., for communicating between a plurality of connected devices.
The base stations 102 and 103 have antennas and transceivers (not shown), are connected to the network N, and communicate with each other. For example, the base stations 102 and 103 are indoor base stations located in different rooms. In addition, the base stations 102 and 103 selectively use one of a plurality of pre-assigned communication methods (communication standards) with different communication speeds to select a communication method from a plurality of terminals T102-1 to T102-. N and the terminal T103-1 perform wireless communication with the terminal T103-N.
　センサ１２１は、基地局１０２の近傍に配置され、基地局１０２の周囲、例えば、基地局１０２が配置されている部屋内における人の密集度に関する情報を取得する。同様に、センサ１２２は、基地局１０３の近傍に配置され、基地局１０３の周囲、例えば、基地局１０３が配置されている部屋内における人の密集度に関する情報を取得する。また、例えば、センサ１２１，１２２は、基地局１０２，１０３の周囲の画像情報を取得するカメラ等の画像センサであり、基地局１０２，１０３の周囲における人の位置を検知するための画像情報を取得して、取得した画像情報をサーバ１０１に出力する。サーバ１０１は、送られてきた画像情報から人の密集度は判定し、人の密集度の高いエリアにある基地局に端末との通信速度を制限する信号を出力する。 The sensor 121 is placed near the base station 102 and acquires information about the density of people around the base station 102, for example, in the room where the base station 102 is placed. Similarly, a sensor 122 is placed near the base station 103 to obtain information about the density of people around the base station 103, eg, in the room in which the base station 103 is placed. Further, for example, the sensors 121 and 122 are image sensors such as cameras that acquire image information around the base stations 102 and 103, and acquire image information for detecting the positions of people around the base stations 102 and 103. It acquires and outputs the acquired image information to the server 101 . The server 101 determines the density of people from the image information sent, and outputs a signal to the base station located in the area with high density of people to limit the communication speed with the terminal.
　例えば、サーバ１０１の判定部１１１は、以下の表１に示すテーブルを持ち、基地局が配置されたエリアもしくは部屋と、基地局ＩＤと、カメラＩＤと、カメラ画像ＩＤとの対応関係を把握している。例えば、判定部１１１は、送られてくるカメラ画像に基づいて人の密集度を判定し、表１を用いてカメラＩＤ及びカメラ画像ＩＤと基地局ＩＤとの対応関係を把握し、密集度に応じて帯域制限する部屋の基地局ＩＤを特定する。なお、センサ１２１，１２２（カメラ）は、カメラＩＤとカメラ画像を判定部１１１に基地局を介さずに送っても良いし、基地局と通信し、基地局を介してカメラＩＤ、基地局ＩＤ、カメラ画像をセットにして判定部１１１に送るようにしても良い。その場合、判定部１１１は、カメラＩＤと基地局ＩＤとカメラ画像との対応関係を把握できるので、表１はなくても良いし、カメラＩＤ、基地局ＩＤ、及びカメラ画像がセットになった情報により表１を更新するようにしても良い。なお、カメラ画像は画像データそのものであり、カメラ画像ＩＤはカメラ画像同士を識別するための情報であり、例えばカメラ画像のファイル名を示す。 For example, the determination unit 111 of the server 101 has a table shown in Table 1 below, and grasps the correspondence between areas or rooms in which base stations are arranged, base station IDs, camera IDs, and camera image IDs. ing. For example, the determination unit 111 determines the density of people based on the received camera image, uses Table 1 to grasp the correspondence between the camera ID, the camera image ID, and the base station ID, and determines the density. Accordingly, the base station ID of the room to be band-limited is specified. Note that the sensors 121 and 122 (cameras) may send the camera ID and the camera image to the determination unit 111 without going through the base station, or may communicate with the base station to obtain the camera ID and the base station ID through the base station. , camera images may be sent to the determination unit 111 as a set. In that case, the determination unit 111 can grasp the correspondence relationship between the camera ID, the base station ID, and the camera image. Table 1 may be updated with the information. Note that the camera image is the image data itself, and the camera image ID is information for identifying camera images, and indicates, for example, the file name of the camera image.
　例えば、判定部１１１は、センサ１２１から送られたカメラ画像を参照して「人の」密集度を判定し、基地局１０２と端末Ｔ１０２－１から端末Ｔ１０２－Ｎとの間の通信速度を制御する。
　以上のように判定部１１１は、例えば、基地局１０２とセンサ１２１と通信しカメラ画像及びカメラ画像ＩＤとカメラＩＤと基地局ＩＤの情報を受信して「人の」密集度を判定し、該当する基地局に接続される端末の通信速度を制御する。 For example, the determination unit 111 refers to the camera image sent from the sensor 121, determines the density of “people”, and controls the communication speed between the base station 102 and the terminals T102-1 to T102-N. do.
As described above, for example, the determination unit 111 communicates with the base station 102 and the sensor 121 to receive the camera image, the information of the camera image ID, the camera ID, and the base station ID, and determines the density of “people”. It controls the communication speed of the terminal connected to the base station.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
　端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎは、例えば、ノートＰＣ、タブレットＰＣ、スマートフォンなどの無線通信が可能なモバイル端末である。複数の端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎは、基地局１０２，１０３及びネットワークＮを介して互いに通信を行う。例えば、基地局１０２に接続されている端末Ｔ１０２－１は、基地局１０２、ネットワークＮ及び基地局１０３を介して、基地局１０３に接続されている端末Ｔ１０３－１と通信を行う。また、端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎは、基地局１０２，１０３と通信を行うと共に、基地局１０２，１０３及びネットワークＮを介してサーバ１０１と通信を行う。
　このように、無線通信システム１００は、サーバ１０１、基地局１０２，１０３、センサ１２１，１２２及び複数の端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎが、ネットワークＮを介して通信可能となっている。 Terminals T102-1 to T102-N and terminals T103-1 to T103-N are mobile terminals capable of wireless communication, such as notebook PCs, tablet PCs, and smartphones. A plurality of terminals T102-1 to T102-N and terminals T103-1 to T103-N communicate with each other via the base stations 102 and 103 and the network N. FIG. For example, a terminal T102-1 connected to the base station 102 communicates with a terminal T103-1 connected to the base station 103 via the base station 102, the network N and the base station 103. FIG. Terminals T102-1 to T102-N and terminals T103-1 to T103-N communicate with base stations 102 and 103, and communicate with server 101 via base stations 102 and 103 and network N. conduct.
Thus, in the wireless communication system 100, the server 101, the base stations 102 and 103, the sensors 121 and 122, and the plurality of terminals T102-1 to T102-N and the terminals T103-1 to T103-N connect the network N. Communication is possible via
　次に、図２及び図３を参照して、サーバ１０１のハードウェア構成を説明する。図２は、サーバ１０１のハードウェア構成の一例を示す図であり、図３は、サーバ１０１のハードウェア構成の別の例を示す図である。
　例えば、図２に示すように、サーバ１０１は、専用のハードウェアである処理回路Ｓ１を有している。処理回路Ｓ１は、例えば、単一回路、複合回路、プログラム化したプロセッサ、並列プログラム化したプロセッサ、ＡＳＩＣ（Ａｐｐｌｉｃａｔｉｏｎ　Ｓｐｅｃｉｆｉｃ　Ｉｎｔｅｇｒａｔｅｄ　Ｃｉｒｃｕｉｔ）、ＦＰＧＡ（Ｆｉｅｌｄ　Ｐｒｏｇｒａｍｍａｂｌｅ　Ｇａｔｅ　Ａｒｒａｙ）、又はこれらを組み合わせによって構成される。 Next, the hardware configuration of the server 101 will be described with reference to FIGS. 2 and 3. FIG. FIG. 2 is a diagram showing an example of the hardware configuration of the server 101, and FIG. 3 is a diagram showing another example of the hardware configuration of the server 101. As shown in FIG.
For example, as shown in FIG. 2, the server 101 has a processing circuit S1 that is dedicated hardware. The processing circuit S1 is configured by, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof.
　また、例えば、図３に示すように、サーバ１０１は、メモリＭ１とプロセッサＰ１とを有し、メモリＭ１に格納されるプログラムをプロセッサＰ１が読み出して実行するように構成されている。このように、サーバ１０１の各機能は、専用のハードウェアである処理回路Ｓ１又はプロセッサＰ１がプログラムを実行することによって実現される。 Also, for example, as shown in FIG. 3, the server 101 has a memory M1 and a processor P1, and is configured such that the processor P1 reads and executes a program stored in the memory M1. In this way, each function of the server 101 is implemented by the processing circuit S1 or the processor P1, which is dedicated hardware, executing a program.
　次に、図１を参照して、無線通信システム１００の詳細について説明する。図１に示すように、サーバ１０１は、密集情報取得部１１４、判定部１１１及び通信制限部１１２を有している。判定部１１１、密集情報取得部１１４及び通信制限部１１２の機能は、上述した専用のハードウェアである処理回路Ｓ１（図２参照）又はプロセッサＰ１（図３参照）がプログラムを実行することによって実現される。 Next, the details of the wireless communication system 100 will be described with reference to FIG. As shown in FIG. 1 , the server 101 has a congestion information acquisition section 114 , a determination section 111 and a communication restriction section 112 . The functions of the determination unit 111, the congestion information acquisition unit 114, and the communication restriction unit 112 are realized by the processing circuit S1 (see FIG. 2) or the processor P1 (see FIG. 3), which is the dedicated hardware described above, executing a program. be done.
　識別情報取得部１１３は、ネットワークＮを介して基地局１０２，１０３から、端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎのうち、基地局１０２，１０３に接続されている端末を識別する識別情報を、当該端末が接続されている基地局を識別可能となるように取得する。例えば、識別情報取得部１１３は、基地局を識別するための情報（基地局ＩＤ）と紐付けて、当該基地局に接続されている端末の識別情報を取得する。 The identification information acquisition unit 113 is connected to the base stations 102 and 103 of the terminals T102-1 to T102-N and the terminals T103-1 to T103-N from the base stations 102 and 103 via the network N. Identification information for identifying the terminal is acquired so that the base station to which the terminal is connected can be identified. For example, the identification information acquiring unit 113 acquires identification information of terminals connected to the base station in association with information for identifying the base station (base station ID).
　密集情報取得部１１４は、ネットワークＮを介してセンサ１２１，１２２から基地局１０２，１０３の周囲における人の密集度に関する情報を取得する。例えば、密集情報取得部１１４は、所定時間毎（例えば、１分毎）にセンサ１２１，１２２から基地局１０２，１０３の周囲の画像情報を取得する。 The crowd information acquisition unit 114 acquires information about the density of people around the base stations 102 and 103 from the sensors 121 and 122 via the network N. For example, the congestion information acquisition unit 114 acquires image information around the base stations 102 and 103 from the sensors 121 and 122 at predetermined time intervals (for example, every minute).
　判定部１１１は、密集情報取得部１１４が取得した、基地局１０２，１０３の周囲における人の密集度に関する情報に基づいて、基地局１０２，１０３の周囲における人の密集度を算出する。例えば、判定部１１１は、密集情報取得部１１４が取得した画像情報に基づいて算出される、現在基地局１０２，１０３の周囲にいる人数及び人と人との距離、基地局１０２，１０３の周囲（部屋）の広さ等から、人の密集度を算出する。 The determination unit 111 calculates the density of people around the base stations 102 and 103 based on the information about the density of people around the base stations 102 and 103 acquired by the density information acquisition unit 114 . For example, the determination unit 111 calculates the number of people currently around the base stations 102 and 103 and the distance between them, the surroundings of the base stations 102 and 103, and The density of people is calculated from the size of the (room).
　また、上述したように、判定部１１１は、センサ１２１から取得した情報に基づいて、基地局１０２の周囲における人の密集度を判定する。例えば、判定部１１１は、センサ１２１から取得した情報に基づいて、基地局１０２の周囲における人の密集度が、あらかじめ、部屋の管理者が設定した、所定の閾値以上であるか否かを判定する。具体的には、判定部１１１は、センサ１２１から取得した画像情報に基づいて、基地局１０２の周囲において存在が検知された人数が、所定の閾値以上であるか否かを判定する。なお、実施の形態１において、「密集度が閾値以上」である場合、対象物が周囲に少なくとも２つ以上存在していることを意味する。 Also, as described above, the determining unit 111 determines the density of people around the base station 102 based on the information acquired from the sensor 121 . For example, based on the information obtained from the sensor 121, the determination unit 111 determines whether the density of people around the base station 102 is equal to or greater than a predetermined threshold set in advance by the manager of the room. do. Specifically, based on the image information acquired from the sensor 121, the determination unit 111 determines whether or not the number of people whose presence is detected around the base station 102 is equal to or greater than a predetermined threshold. In the first embodiment, when "the density is equal to or greater than the threshold", it means that there are at least two or more objects in the vicinity.
　通信制限部１１２は、判定部１１１の判定結果、即ち基地局１０２，１０３の周囲における人の密集度に基づいて、基地局１０２，１０３に接続される複数の端末Ｔ１０２－１から端末Ｔ１０２－Ｎや端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの間での無線通信を制限する。例えば、通信制限部１１２は、判定部１１１が基地局１０２の周囲における人の密集度が所定の閾値以上であると判定した場合、基地局１０２が端末Ｔ１０２－１から端末Ｔ１０２－Ｎとの間での無線通信に、他の通信方式よりも通信速度の低い通信方式を選択したり、無線通信に使用できる通信帯域を制限したりすることで、基地局１０２とそこに接続される複数の端末Ｔ１０２－１から端末Ｔ１０２－Ｎとの間での無線通信を制限する信号を基地局１０２へ送信する。一方で、通信制御部１１２は判定部１１１が基地局１０３の周囲における人の密集度が所定の閾値以下であると判定した場合、基地局１０３が端末T１０３－１から端末Ｔ１０３－Ｎとの無線通信を制限せず最大の通信速度で通信する信号を基地局１０３へ送信する。例えば、通信制限部１１２は、基地局１０２，１０３の周囲における人の密度が低くそこに接続される端末Ｔ１０２－１から端末Ｔ１０２－Ｎや端末Ｔ１－３－１から端末Ｔ１０３－Ｎとの無線通信において、制限を行わない場合、５Ｇ方式で５つの帯域（チャネル）で高速通信をさせ、人の密集度が所定の閾値以上で制限を行う場合、ＬＴＥ方式で１つの帯域で低速通信をさせる。また、例えば、通信方式としては、通信規格、及び移動通信システムの世代等が挙げられる。 Based on the determination result of the determination unit 111, that is, the density of people around the base stations 102 and 103, the communication restriction unit 112 selects a plurality of terminals T102-1 to T102-N connected to the base stations 102 and 103. and wireless communication between the terminal T103-1 and the terminal T103-N. For example, when the determination unit 111 determines that the density of people around the base station 102 is equal to or greater than a predetermined threshold, the communication restriction unit 112 determines that the base station 102 is between terminals T102-1 and T102-N. By selecting a communication method with a lower communication speed than other communication methods or limiting the communication band that can be used for wireless communication, the base station 102 and a plurality of terminals connected thereto A signal is transmitted from T102-1 to base station 102 to restrict radio communication with terminal T102-N. On the other hand, when the determination unit 111 determines that the density of people around the base station 103 is equal to or less than the predetermined threshold value, the communication control unit 112 determines that the base station 103 communicates with the terminal T103-1 to the terminal T103-N. A signal is transmitted to the base station 103 to communicate at the maximum communication speed without limiting communication. For example, the communication restriction unit 112 restricts the radio communication between the terminals T102-1 to T102-N and the terminals T1-3-1 to T103-N connected to the base stations 102 and 103 when the density of people around the base stations 102 and 103 is low. When communication is not restricted, high-speed communication is performed in 5 bands (channels) in the 5G system, and when the density of people is limited to a predetermined threshold or more, low-speed communication is performed in 1 band in the LTE system. . Further, for example, the communication method includes a communication standard, a generation of a mobile communication system, and the like.
　また、例えば、通信制限部１１２は、判定部１１１が基地局１０２の周囲における人の密集度が所定の閾値未満であると判定した場合、基地局１０２が端末Ｔ１０２－１から端末Ｔ１０２－Ｎとの間での無線通信に使用する通信方式を最も高速に通信できる方式に変更したり、予め割り当てられている全ての通信帯域を選択したりすることで、基地局１０２，１０３と複数の端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの間での無線通信の制限を緩和する信号を基地局１０２へ送信する。なお、実施の形態１において、「密集度が閾値未満」である場合には、対象物が周囲に存在しない場合、及び対象物が周囲に１つのみ存在する場合を含む。 Further, for example, when the determination unit 111 determines that the density of people around the base station 102 is less than a predetermined threshold, the communication restriction unit 112 determines that the base station 102 is the terminal T102-1 to the terminal T102-N. By changing the communication method used for wireless communication between the base stations 102, 103 and the plurality of terminals T102 to a method that enables the fastest communication, or by selecting all pre-allocated communication bands, -1 transmits to the base station 102 a signal that relaxes restrictions on wireless communication between the terminal T102-N and the terminal T103-1 to the terminal T103-N. In the first embodiment, "the density is less than the threshold" includes the case where there are no objects in the surroundings and the case where there is only one object in the surroundings.
　基地局１０２，１０３は、通信制限部１１２から取得した信号に応じた通信方式や通信帯域を使用して、端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの間での無線通信を行う。例えば、基地局１０２の周囲における人の密集度が所定の閾値以上である場合、基地局１０２は、端末Ｔ１０２－１から端末Ｔ１０２－Ｎとの間で通信速度の低い通信方式や、通信帯域が制限された状態で無線通信を行う。また、例えば、基地局１０２の周囲における人の密集度が所定の閾値未満である場合、基地局１０２は、端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの間の無線通信において使用可能な全ての通信方式及び通信帯域のうち、最も通信速度が高い通信規格で、かつ端末が使用可能な最大限の通信帯域を使用して高速な無線通信を行う。 Base stations 102 and 103 use the communication scheme and communication band according to the signal acquired from communication restriction section 112 to establish communication between terminal T102-1 and terminal T102-N and between terminal T103-1 and terminal T103-N. wireless communication. For example, when the density of people around the base station 102 is equal to or greater than a predetermined threshold, the base station 102 selects a communication method with a low communication speed or a communication band with a low communication speed between the terminals T102-1 to T102-N. Perform wireless communication in a restricted state. In addition, for example, when the density of people around the base station 102 is less than a predetermined threshold, the base station 102 connects terminals T102-1 to T102-N and terminals T103-1 to T103-N. High-speed wireless communication is performed using the communication standard with the highest communication speed among all communication methods and communication bands that can be used in wireless communication, and using the maximum communication band that can be used by the terminal.
　このように、通信制限部１１２は、判定部１１１の判定結果に基づいて、基地局１０２，１０３が端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの間の無線通信を制限している。言い換えると、サーバ１０１は、基地局１０２，１０３の周囲における人の密集度に応じて、基地局１０２，１０３が端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの間の無線通信を制限している。 In this way, based on the determination result of determination section 111, communication restriction section 112 allows base stations 102 and 103 to restrict radio communication between terminal T102-1 to terminal T102-N and terminal T103-1 to terminal T103-N. communication is restricted. In other words, server 101 allows base stations 102 and 103 to connect terminals T102-1 to T102-N and terminals T103-1 to T103-N according to the density of people around base stations 102 and 103. restricts wireless communication between
　例えば、人が特定の範囲内において密集する状態であると、座席、机、通路、空間等の利用可能な資源や設備が有効活用できない場合がある。実施の形態１の無線通信システム１００においては、サーバ１０１が、基地局１０２，１０３の周囲における人の密集度に応じて、基地局１０２，１０３が端末Ｔ１０２から端末Ｔ１０２－Ｎや端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの間の無線通信を制限している。 For example, if people are concentrated within a certain area, it may not be possible to effectively utilize available resources and equipment such as seats, desks, aisles, and spaces. In radio communication system 100 of Embodiment 1, server 101 controls base stations 102 and 103 to operate from terminal T102 to terminal T102-N or terminal T103-1 according to the density of people around base stations 102 and 103. to the terminal T103-N.
　これにより、例えば、サーバ１０１は、基地局１０２の周囲における人の密集度が高く、基地局１０３の周囲における人の密集度が低い場合、基地局１０２を介してネットワークＮにアクセスする端末Ｔ１０２－１のユーザに対し、高速な無線通信をしたい場合は基地局１０３を介してネットワークＮにアクセスするように、ユーザが通信の不便さを感じることにより基地局１０２の周囲から基地局１０３の周囲への移動を促すことが可能になり、基地局１０２の周囲における密集度を抑制することができる。 As a result, for example, when the density of people around the base station 102 is high and the density of people around the base station 103 is low, the server 101 can access the network N via the base station 102 from the terminal T102-. For one user, if he wants to perform high-speed wireless communication, he accesses the network N via the base station 103. As the user feels inconvenience in communication, he moves from the vicinity of the base station 102 to the vicinity of the base station 103. movement can be encouraged, and the density around the base station 102 can be suppressed.
　図４は、サーバ１０１が行う処理を示すフローチャートである。
　サーバ１０１は、処理を開始すると、まず、センサ１２１，１２２から人の密集度に関する情報を取得したか否かを判定する（ステップＳＴ１１）。この処理において、サーバ１０１は、基地局１０２，１０３の周囲における人の密集度を判定するため、基地局１０２，１０３の周囲における人の密集度に関する情報をセンサ１２１，１２２からネットワークＮを介して取得したか否かを判定している。 FIG. 4 is a flow chart showing processing performed by the server 101 .
When starting the process, the server 101 first determines whether or not information about the density of people has been obtained from the sensors 121 and 122 (step ST11). In this process, server 101 receives information about the density of people around base stations 102 and 103 from sensors 121 and 122 via network N in order to determine the density of people around base stations 102 and 103. It is determined whether or not it has been acquired.
　ステップＳＴ１１の処理において、センサ１２１，１２２から情報を取得していない場合（ステップＳＴ１１のＮＯ）、サーバ１０１は、センサ１２１，１２２から情報を取得するまで処理を待機する。 In the process of step ST11, if information has not been obtained from the sensors 121 and 122 (NO in step ST11), the server 101 waits until information is obtained from the sensors 121 and 122.
　ステップＳＴ１１の処理において、センサ１２１，１２２から情報を取得している場合（ステップＳＴ１１のＹＥＳ）、サーバ１０１は、取得した情報に基づいて基地局１０２，１０３の周囲における人の密集度を算出する（ステップＳＴ１２）。例えば、この処理において、サーバ１０１は、センサ１２１，１２２から取得した画像情報に基づいて、基地局１０２の周囲における人数を算出する。 In the process of step ST11, if information has been acquired from sensors 121 and 122 (YES in step ST11), server 101 calculates the density of people around base stations 102 and 103 based on the acquired information. (Step ST12). For example, in this process, the server 101 calculates the number of people around the base station 102 based on image information acquired from the sensors 121 and 122 .
　ステップＳＴ１２の処理を行うと、サーバ１０１は、算出した人の密集度が所定の閾値以上であるか否かを判定する（ステップＳＴ１３）。この処理において、サーバ１０１は、算出した人の密集度に基づいて、基地局１０２，１０３がエリア内の端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの間の無線通信を制限する必要があるか否かを判定している。 After performing the process of step ST12, the server 101 determines whether the calculated density of people is greater than or equal to a predetermined threshold (step ST13). In this process, based on the calculated density of people, the server 101 determines the distance between the terminals T102-1 to T102-N and the terminals T103-1 to T103-N within the area of the base stations 102 and 103. It is determined whether or not it is necessary to restrict wireless communication.
　ステップＳＴ１３の処理において、人の密集度が所定の閾値未満である場合（ステップＳＴ１３のＮＯ）、サーバ１０１は、基地局１０２，１０３に対し端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの無線通信の制限を解除することを決定する（ステップＳＴ１５）。この処理において、サーバ１０１は、基地局１０２，１０３の周囲における人の密集度が所定の閾値未満であることに基づいて、基地局１０２，１０３と端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの間の無線通信に通信速度が低下する制限を設けず、ユーザに対して高速な通信を提供することを決定している。 In the process of step ST13, if the density of people is less than the predetermined threshold (NO in step ST13), the server 101 sends to the base stations 102 and 103 terminal T102-1 to terminal T102-N and terminal T103-1. determines to release the restriction on radio communication with the terminal T103-N (step ST15). In this process, based on the fact that the density of people around the base stations 102 and 103 is less than a predetermined threshold value, the server 101 determines the base stations 102 and 103 and the terminal T102-1 to the terminal T102-N and the terminal T103. -1 to terminal T103-N, it has been decided to provide users with high-speed communication without imposing restrictions on the reduction in communication speed.
　ステップＳＴ１３の処理において、人の密集度が所定の閾値以上である場合（ステップＳＴ１３のＹＥＳ）、サーバ１０１は、基地局１０２，１０３に対し端末Ｔ１０２－１から端末Ｔ１０２－Ｎや端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの無線通信を制限することを決定する（ステップＳＴ１４）。この処理において、サーバ１０１は、基地局１０２，１０３の周囲における人の密集度が所定の閾値以上であることに基づいて、基地局１０２，１０３と端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの間の無線通信に通信速度が低下する制限を設けることを決定している。 In the process of step ST13, if the density of people is equal to or greater than the predetermined threshold (YES in step ST13), the server 101 sends the base stations 102 and 103 from terminal T102-1 to terminal T102-N and terminal T103-1. determines to restrict radio communication with the terminal T103-N (step ST14). In this process, based on the fact that the density of people around the base stations 102 and 103 is equal to or greater than a predetermined threshold, the server 101 selects base stations 102 and 103 and terminal T102-1 to terminal T102-N and terminal T103. -1 to the terminal T103-N, it has been decided to impose a limit on the speed of the wireless communication.
　例えば、基地局１０２と端末Ｔ１０２－１との間の無線通信に第１通信方式と、第１通信方式よりも高い通信速度での通信が可能な第２通信方式との２つの通信方式が割り当てられている場合、この処理において、サーバ１０１は、基地局１０２に対し第２通信方式の使用を制限し、第２通信方式よりも通信速度が低い第１通信方式を使用させることを決定する。 For example, two communication methods are assigned to wireless communication between the base station 102 and the terminal T102-1: a first communication method and a second communication method capable of communicating at a higher communication speed than the first communication method. If so, in this process, the server 101 restricts the use of the second communication method to the base station 102 and determines to use the first communication method whose communication speed is lower than that of the second communication method.
　ステップＳＴ１４又はステップＳＴ１５の処理を行うと、サーバ１０１は、基地局１０２，１０３に対して端末Ｔ１０２－１から端末Ｔ１０２－Ｎや端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの無線通信の制限に応じた信号を送信する。例えば、サーバ１０１は、基地局１０２に対して端末Ｔ１０２－１との無線通信に使用可能な通信方式に応じた信号を送信する（ステップＳＴ１６）。ステップＳＴ１６の処理を行うと、サーバ１０１は、処理をステップＳＴ１１へ戻す。基地局１０２，１０３は、サーバ１０１から通信制限に応じた信号を受信すると、通信制限に応じて端末Ｔ１０２－１から端末Ｔ１０２－Ｎや端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの無線通信を行う。 After performing the process of step ST14 or step ST15, the server 101 requests the base stations 102 and 103 to comply with the restriction of wireless communication from the terminal T102-1 to the terminal T102-N and from the terminal T103-1 to the terminal T103-N. send a signal. For example, server 101 transmits to base station 102 a signal corresponding to a communication method that can be used for wireless communication with terminal T102-1 (step ST16). After performing the process of step ST16, the server 101 returns the process to step ST11. When the base stations 102 and 103 receive the signal corresponding to the communication restriction from the server 101, the base stations 102-1 and 103-N perform wireless communication with the terminal T102-1 and the terminal T103-N according to the communication restriction. .
　このように、実施の形態１に係るサーバ１０１は、基地局１０２，１０３の周囲における人の密集度に応じて、基地局１０２，１０３が端末Ｔ１０２－１から端末Ｔ１０２－Ｎや端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの間の無線通信に使用する通信方式や通信帯域を選択する。これにより、例えば、基地局１０２，１０３の周囲における人の密集度が所定の閾値以上である場合に基地局１０２，１０３が端末Ｔ１０２－１から端末Ｔ１０２－Ｎや端末Ｔ１０３－１から端末Ｔ１０３－Ｎと無線通信を行う際の通信速度を制限することが可能となる。通信速度の制限を受けたユーザは通信が遅いということを不快に感じ、通信帯域が制限されないエリアへ移動するようになる。以上のように、実施の形態１に係るサーバ１０１は、基地局１０２，１０３の周囲から別の場所への端末Ｔ１０２－１から端末Ｔ１０２－Ｎや端末Ｔ１０３－１から端末Ｔ１０３－Ｎのユーザの移動を促すことで、人の密集度を抑制することができる。人の密集度を抑制することにより、ウイルスの蔓延防止や施設の均等利用による効率化を促進できる。 In this way, server 101 according to Embodiment 1 allows base stations 102 and 103 to move from terminal T102-1 to terminal T102-N and terminal T103-1 according to the density of people around base stations 102 and 103. to select the communication method and communication band used for wireless communication with the terminal T103-N. As a result, for example, when the density of people around the base stations 102 and 103 is equal to or higher than a predetermined threshold, the base stations 102 and 103 are connected from the terminal T102-1 to the terminal T102-N and from the terminal T103-1 to the terminal T103-. It is possible to limit the communication speed when performing wireless communication with N. A user whose communication speed is limited feels uncomfortable with the slow communication, and moves to an area where the communication band is not limited. As described above, the server 101 according to Embodiment 1 is capable of transmitting the users of the terminals T102-1 to T102-N and the terminals T103-1 to T103-N from the vicinity of the base stations 102 and 103 to another location. By encouraging people to move, it is possible to reduce the density of people. By controlling the density of people, it is possible to prevent the spread of viruses and promote efficiency through equal use of facilities.
　なお、実施の形態１において、無線通信システム１００は、使用可能な通信方式に応じた信号をサーバ１０１が基地局１０２，１０３に送信し、基地局１０２，１０３がサーバ１０１から使用可能な通信方式に応じた信号を受信すると、信号に応じた通信方式を使用して端末Ｔ１０２－１から端末Ｔ１０２－Ｎや端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの通信を行うように構成されているが、これに限定されない。無線通信システムは、通信制限部によって基地局と端末との無線通信を制限するように構成されていればよく、例えば、サーバは、基地局を介して端末に対し、使用可能な通信帯域に関する情報を送信するように構成されていてもよいし、基地局以外の装置を介して端末に対し、使用可能な通信帯域に関する情報を送信するように構成されていてもよいし、基地局を介して端末に対し、使用可能な通信方法に関する情報を送信するように構成されていてもよいし、基地局以外の装置を介して端末に対し、使用可能な通信方法に関する情報を送信するように構成されていてもよい。 In Embodiment 1, in wireless communication system 100, server 101 transmits a signal corresponding to an available communication method to base stations 102 and 103, and base stations 102 and 103 transmit signals corresponding to available communication methods from server 101. When a signal corresponding to is received, the terminal T102-1 communicates with the terminal T102-N and the terminal T103-1 communicates with the terminal T103-N using the communication method corresponding to the signal. It is not limited to this. A wireless communication system only needs to be configured to restrict wireless communication between a base station and a terminal by a communication restriction unit. may be configured to transmit information about available communication bands to the terminal via a device other than the base station, or via the base station It may be configured to transmit information about available communication methods to the terminal, or may be configured to transmit information about available communication methods to the terminal via a device other than the base station. may be
　また、例えば、通信制限部によって一部の通信方式や通信帯域の使用が制限されている場合、端末は、不図示の表示装置によって、一部の通信方式や通信帯域の使用が制限されていることを示す情報と、接続中の基地局の周囲以外の場所（例えば、他の基地局の周囲）への移動を促す情報との少なくとも一方、又は両方を端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎのいずれかのユーザに報知するように構成されていてもよい。このように構成されることで、一部の通信方法や通信帯域の使用が制限されている端末Ｔ１０２－１から端末Ｔ１０２－Ｎと端末Ｔ１０３－１から端末Ｔ１０３－Ｎのユーザへ別の場所への移動をより効率的に促すことができる。 Further, for example, when the use of a part of the communication method or communication band is restricted by the communication restriction unit, the use of the part of the communication method or the communication band is restricted by the display device (not shown) of the terminal. and information prompting movement to a location other than the vicinity of the currently connected base station (for example, the vicinity of another base station), or both of the terminal T102-1 and the terminal T102-N. It may be configured to notify any user of terminals T103-1 to T103-N. With this configuration, users of terminals T102-1 to T102-N and terminals T103-1 to T103-N, for which the use of some communication methods and communication bands are restricted, can be transferred to different locations. movement can be promoted more efficiently.
　また、実施の形態１において、サーバ１０１は、判定部１１１が、センサ１２１，１２２からの情報に基づいて、基地局１０２，１０３の周囲における人の密集度が所定の閾値以上であるか否かを判定し、通信制限部１１２が、判定部１１１の判定結果に基づいて基地局１０２，１０３が使用する通信方法や通信帯域を制限しているが、これに限定されない。無線通信制御装置は、通信制限部が、判定部によって判定された基地局の周囲における人の密集度に基づいて基地局が使用する通信方式や通信帯域を選択するように構成されていればよく、例えば、無線通信制御装置は、判定部が、複数の基地局の周囲における人の密集度を判定し、通信制限部が、相対的に人の密集度が低い基地局において、人の密集度が高い基地局よりも高速で無線通信が可能な通信方法や通信帯域を使用可能となるように、基地局が使用する通信方法や通信帯域を選択するように構成されていてもよい。 Further, in Embodiment 1, the determination unit 111 of the server 101 determines whether the density of people around the base stations 102 and 103 is equal to or greater than a predetermined threshold based on information from the sensors 121 and 122. is determined, and communication restriction section 112 restricts the communication method and communication band used by base stations 102 and 103 based on the determination result of determination section 111, but is not limited to this. The radio communication control device may be configured such that the communication restriction unit selects the communication method and communication band used by the base station based on the density of people around the base station determined by the determination unit. For example, in the radio communication control device, the determination unit determines the density of people around a plurality of base stations, and the communication restriction unit determines the density of people in a base station with a relatively low density of people. The communication method and communication band to be used by the base station may be selected so that the communication method and communication band that enable wireless communication at a higher speed than the base station with a higher power can be used.
　また、実施の形態１において、センサ１２１，１２２として、基地局１０２，１０３の周囲における画像情報を取得する画像センサを例に説明をしたが、これに限定されない。密集情報取得部は、基地局の周囲における人の密集度に関する情報を取得することが可能に構成されていればよく、例えば、密集情報取得部は、基地局の周囲において人が呼吸によって排出する二酸化炭素濃度に関する情報を取得する二酸化炭素センサ（二酸化炭素濃度計）であってもよいし、基地局の周囲において人が発する熱を検知して、温度に関する情報を取得する赤外線センサ等の温度センサ（熱センサ）であってもよいし、基地局の周囲において人を検知するレーダーであってもよいし、基地局の周囲における座席に設けられて座席に着席した人を検知する光学センサであってもよい。 Also, in Embodiment 1, an image sensor that acquires image information around the base stations 102 and 103 has been described as an example of the sensors 121 and 122, but the present invention is not limited to this. The crowd information acquisition unit only needs to be configured to be able to acquire information about the degree of crowding of people around the base station. It may be a carbon dioxide sensor (carbon dioxide concentration meter) that acquires information on carbon dioxide concentration, or a temperature sensor such as an infrared sensor that acquires information on temperature by detecting heat emitted by people around the base station. (heat sensor), a radar that detects people around the base station, or an optical sensor that is installed on a seat around the base station and detects a person sitting on the seat. may
　また、実施の形態１において、センサ１２１，１２２は、基地局１０２，１０３の周囲における人の密集度に関する情報を取得するものであるとしたが、これに限定されない。密集情報取得部は、基地局の周囲において、端末又は端末と共に移動する物と同種の何らかの対象物の密集度に関する情報を取得することが可能に構成されていればよく、例えば、密集情報取得部は、基地局の周囲において端末の密集度に関する情報を取得するものであってもよいし、基地局の周囲において自動車、自転車等の乗り物の密集度に関する情報を取得するものであってもよいし、基地局の周囲において遠隔操作又は自立運転される移動端末、具体的には、防犯用ロボットやドローン等の密集度に関する情報を取得するものであってもよいし、所定の物を身に着けた人、具体的には同じ装備を身に着けた警備員、作業員、案内員等であってもよく、具体的には、基地局の周囲におけるこれらの密集度に関する情報として画像情報を取得する画像センサが考えられる。 Also, in Embodiment 1, the sensors 121 and 122 acquire information about the density of people around the base stations 102 and 103, but the present invention is not limited to this. The congestion information acquisition unit may be configured to be able to acquire information about the density of objects of the same type as the terminal or objects moving with the terminal in the vicinity of the base station. may acquire information about the density of terminals around the base station, or may acquire information about the density of vehicles such as automobiles and bicycles around the base station. , Mobile terminals that are remotely controlled or autonomously operated around the base station, specifically, security robots, drones, etc. Specifically, it may be a security guard, a worker, a guide, etc. wearing the same equipment. An image sensor that
　また、実施の形態１において、センサ１２１，１２２は、ネットワークＮを介してサーバ１０１に接続されているものとしたが、これに限定されない。密集情報取得部は、取得した基地局の周囲における人の密集度に関する情報を判定部が取得可能に設けられていればよく、例えば、密集情報取得部は、ネットワークＮを介さずにサーバに直接接続されていてもよいし、基地局に直接接続されていてもよい。 Also, in Embodiment 1, the sensors 121 and 122 are connected to the server 101 via the network N, but the present invention is not limited to this. The congestion information acquisition unit may be provided so that the determination unit can acquire information about the density of people around the acquired base station. It may be connected or directly connected to the base station.
　また、基地局のアンテナは、当該基地局に接続されている端末毎に異なる通信方法や通信帯域を使用して無線通信が可能なフェーズドアレイアンテナであってもよい。基地局のアンテナがフェーズドアレイアンテナである場合、例えば、判定部が、センサからの情報に基づいて特定の基地局の周囲において人の密集度が所定の閾値以上の場所と所定の閾値未満の場所とを判定し、通信制限部が、判定部の判定結果に基づいて、アンテナの位置を基準として人の密集度が所定の閾値以上である場所が位置する所定の角度範囲内の端末に対して無線通信で使用する通信方式や通信帯域を制限するように、端末毎に使用する通信方式や通信帯域を選択することが可能になる。 Also, the antenna of the base station may be a phased array antenna capable of wireless communication using different communication methods and communication bands for each terminal connected to the base station. When the antenna of the base station is a phased array antenna, for example, the determination unit determines locations where the density of people is equal to or greater than a predetermined threshold and locations where the density of people is less than the predetermined threshold around a specific base station based on information from sensors. Based on the determination result of the determination unit, the communication restriction unit determines that the terminal is located within a predetermined angular range where the density of people is equal to or greater than a predetermined threshold with respect to the position of the antenna. It becomes possible to select the communication method and communication band to be used for each terminal so as to limit the communication method and communication band to be used in wireless communication.
　また、実施の形態１において、基地局１０２，１０３は、通信制限部１１２から取得した信号に応じた通信方法や通信帯域を使用して、端末Ｔ１０２－１から端末Ｔ１０２－Ｎや端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの間での無線通信を行うように構成されているが、無線通信システム１００は、基地局１０２，１０３によって基地局１０２，１０３と端末Ｔ１０２－１から端末Ｔ１０２－Ｎや端末Ｔ１０３－１から端末Ｔ１０３－Ｎとの間での無線通信を行う通信方法や通信帯域を制限するものに限定されない。無線通信システムは、通信制限部が選択した通信方法や通信帯域を使用して、基地局と端末との間での無線通信を行うように構成されていればよく、例えば、無線通信システムは、通信制限部が選択した通信方式や通信帯域に応じた信号を基地局を介して端末へ送信し、端末によって、基地局と端末との間での無線通信を行う通信方式や通信帯域を制限するように構成されていてもよい。 In addition, in Embodiment 1, base stations 102 and 103 use a communication method and a communication band according to the signal acquired from communication restriction section 112, terminal T102-1 to terminal T102-N and terminal T103-1. to the terminal T103-N. The communication method and communication band for wireless communication between the terminal T103-1 and the terminal T103-N are not limited. The wireless communication system may be configured to perform wireless communication between the base station and the terminal using the communication method and communication band selected by the communication restriction unit. A signal corresponding to the communication method and communication band selected by the communication restriction unit is transmitted to the terminal via the base station, and the communication method and communication band for wireless communication between the base station and the terminal are restricted by the terminal. It may be configured as
　また、実施の形態１において、サーバ１０１が判定部１１１及び通信制限部１１２を有しているものとしたが、これに限定されない。判定部及び通信制限部は、基地局及び端末を備えた無線通信システムのいずれかの構成に設けられていればよく、例えば、基地局に設けられていてもよいし、無線通信システム内の図示しない他の装置に設けられていてもよい。例えば、判定部及び通信制限部が基地局に設けられている場合、実施の形態１において、基地局が無線通信制御装置を構成する。 Also, in Embodiment 1, the server 101 has the determination unit 111 and the communication restriction unit 112, but the present invention is not limited to this. The determination unit and the communication restriction unit may be provided in any configuration of a wireless communication system including a base station and a terminal. may be provided in other devices that do not For example, when the determination unit and the communication restriction unit are provided in the base station, the base station constitutes the radio communication control device in the first embodiment.
実施の形態２．
　次に、図５を参照して、実施の形態２に係る無線通信システム２００について説明する。図５は、実施の形態２に係る無線通信システム２００の構成の一部を示すブロック図である。
　実施の形態２に係る無線通信システム２００は、実施の形態１に係る無線通信システム１００に対し、基地局２０２，２０３が有する密集情報取得部２２２，２２３が、基地局２０２，２０３の周囲における対象物としての端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度に関する情報を取得する点が異なり、実施の形態１と同様の内容については、説明を省略する。 Embodiment 2.
Next, a wireless communication system 200 according to Embodiment 2 will be described with reference to FIG. FIG. 5 is a block diagram showing part of the configuration of radio communication system 200 according to Embodiment 2. As shown in FIG.
Unlike the radio communication system 100 according to Embodiment 1, the radio communication system 200 according to Embodiment 2 is different from the radio communication system 100 according to Embodiment 1 in that the dense information acquisition units 222 and 223 included in the base stations 202 and 203 are the targets around the base stations 202 and 203. The difference is that the information about the density of the terminal T202-N from the terminal T202-1 and the terminal T203-N from the terminal T203-1 as objects is acquired, and the description of the same contents as in the first embodiment is omitted.
　実施の形態２に係る無線通信システム２００は、ネットワークＮに接続されているサーバ２０１と、ネットワークＮを介してサーバ２０１に接続されている複数の基地局２０２，２０３と、基地局２０２を介してネットワークＮに接続される複数の端末Ｔ２０２－１から端末Ｔ２０２－Ｎと、基地局２０３を介してネットワークＮに接続される複数の端末Ｔ２０３－１から端末Ｔ２０３－Ｎと、を備えている。 A wireless communication system 200 according to Embodiment 2 includes a server 201 connected to a network N, a plurality of base stations 202 and 203 connected to the server 201 via the network N, and via the base station 202 A plurality of terminals T202-1 to T202-N connected to the network N and a plurality of terminals T203-1 to T203-N connected to the network N via the base station 203 are provided.
　基地局２０２，２０３は、アンテナ、送受信機及び密集情報取得部２２２，２２３を有しており、それぞれネットワークＮに接続されて、互いに通信を行う。
　密集情報取得部２２２，２２３は、基地局２０２，２０３が端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎとの間で無線通信を行う際に、端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎが出力した情報に基づいて、基地局２０２，２０３の周囲における人の密集度に関する情報をアンテナを介して取得する。例えば、密集情報取得部２２２，２２３が取得する、基地局２０２，２０３の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度に関する情報としては、端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎが基地局２０２，２０３との間で無線通信を行った際の情報の伝搬時間、電波強度、接続される端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの数等の情報が考えられる。例えば、基地局２０２，２０３の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度が高い場合、一般的に、端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎが基地局２０２，２０３との間で無線通信を行った際に、情報の伝搬時間が長くなる、電波強度が低くなる、等の現象が発生する。 The base stations 202 and 203 have antennas, transceivers, and congestion information acquisition units 222 and 223, are connected to the network N, respectively, and communicate with each other.
When the base stations 202 and 203 perform wireless communication between the terminals T202-1 and T202-N and between the terminals T203-1 and T203-N, the crowded information acquisition units 222 and 223 receive information from the terminal T202-1. Based on the information output by the terminal T203-N from the terminal T202-N and the terminal T203-1, information on the density of people around the base stations 202 and 203 is acquired via the antenna. For example, the information about the density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base stations 202 and 203 acquired by the congestion information acquisition units 222 and 223 includes the terminal T202 -1 to the terminal T202-N and from the terminal T203-1 to the terminal T203-N when performing wireless communication with the base stations 202 and 203, information propagation time, radio wave intensity, connected terminal T202-1 Information such as the number of terminals T202-N and terminals T203-1 to T203-N can be considered. For example, when the density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base stations 202 and 203 is high, generally, the terminals T202-1 to T202-N and the terminals T202-N When the terminals T203-1 to T203-N communicate with the base stations 202 and 203 by radio, phenomena such as an increase in information propagation time and a decrease in radio wave intensity occur.
　なお、無線通信システム２００は、基地局２０２，２０３が端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎとの間で無線通信を行った際に、密集情報取得部２２２，２２３が情報の伝搬時間、電波強度、接続される端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの数等を監視することで、これら基地局２０２，２０３周辺の密集度に関する情報を取得するように構成されていてもよいし、端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎのそれぞれが情報の伝搬時間、電波強度等を監視して、端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎのそれぞれが情報の伝搬時間、電波強度等に応じた信号を基地局２０２，２０３に対して送信することで、密集情報取得部２２２，２２３が端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの周辺の密集度に関する情報を取得するように構成されていてもよい。 In addition, when the base stations 202 and 203 perform radio communication between the terminals T202-1 and T202-N and between the terminals T203-1 and T203-N, the radio communication system 200 uses the congestion information acquisition unit 222. , 223 monitor the propagation time of information, the radio wave intensity, the number of terminals T202-1 to T202-N and the number of terminals T203-1 to T203-N to be connected, etc. It may be configured to acquire information about the degree of density, and each of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N monitors information propagation time, radio wave intensity, and the like. Each of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N transmits a signal corresponding to the information propagation time, radio wave intensity, etc. to the base stations 202 and 203. The congestion information acquisition units 222 and 223 may be configured to acquire information on the degree of congestion around the terminal T202-1 to the terminal T202-N and from the terminal T203-1 to the terminal T203-N.
　サーバ２０１は、判定部２１１及び通信制限部２１２を有している。判定部２１１及び通信制限部２１２の機能は、上述した専用のハードウェアである処理回路Ｓ１（図２参照）又はプロセッサＰ１（図３参照）がプログラムを実行することによって実現される。
　判定部２１１は、ネットワークＮを介して密集情報取得部２２２，２２３から基地局２０２，２０３の周囲における人の密集度に関する情報を取得し、取得した情報に基づいて、基地局２０２，２０３の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度を算出する。また、判定部２１１は、算出した端末はＴ２の密集度を判定する。例えば、判定部２１１は、算出した基地局２０２，２０３の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度が所定の閾値以上であるか否かを判定する。
　通信制限部２１２は、判定部２１１が判定した基地局２０２，２０３の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度に基づいて、基地局２０２，２０３と端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎとの無線通信を制限する。例えば、通信制限部２１２は、判定部２１１が判定した基地局２０２，２０３の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度に基づいて、基地局２０２，２０３が複数の端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎとの間での無線通信に使用する通信方法や通信帯域を選択し、選択結果に応じた信号を基地局２０２，２０３へ送信する。 The server 201 has a determination section 211 and a communication restriction section 212 . The functions of the determination unit 211 and the communication restriction unit 212 are realized by executing a program by the processing circuit S1 (see FIG. 2) or the processor P1 (see FIG. 3), which is the dedicated hardware described above.
The determination unit 211 acquires information about the density of people around the base stations 202 and 203 from the density information acquisition units 222 and 223 via the network N, and based on the acquired information, , the density of the terminal T202-1 to the terminal T202-N and the terminal T203-1 to the terminal T203-N are calculated. Further, the determination unit 211 determines the calculated density of terminals T2. For example, the determining unit 211 determines whether the calculated density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base stations 202 and 203 is equal to or greater than a predetermined threshold. judge.
Based on the density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base stations 202 and 203 determined by the determination unit 211, the communication restriction unit 212 determines whether the base stations 202, 203, 203 and the terminal T202-1 to the terminal T202-N and from the terminal T203-1 to the terminal T203-N. For example, the communication restriction unit 212 determines, based on the density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base stations 202 and 203 determined by the determination unit 211, the base station 202 and 203 select a communication method and a communication band to be used for wireless communication between a plurality of terminals T202-1 to T202-N and between terminals T203-1 to T203-N, and a signal corresponding to the selection result. to the base stations 202 and 203.
　次に、図６を参照して、サーバ２０１が行う処理について説明する。図６は、サーバ２０１が行う処理を示すフローチャートである。
　サーバ２０１は、処理を開始すると、まず、密集情報取得部２２２，２２３から端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度に関する情報を取得したか否かを判定する（ステップＳＴ２１）。この処理において、サーバ２０１は、基地局２０２，２０３の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの数を判定するため、基地局２０２，２０３の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度に関する情報を、基地局２０２，２０３の密集情報取得部２２２，２２３からネットワークＮを介して取得したか否かを判定している。 Next, processing performed by the server 201 will be described with reference to FIG. FIG. 6 is a flow chart showing processing performed by the server 201 .
When starting the process, the server 201 first checks whether information about the density of the terminal T202-N from the terminal T202-1 or from the terminal T203-1 to the terminal T203-N has been obtained from the congestion information acquisition units 222 and 223. Determine (step ST21). In this process, server 201 determines the number of terminals T202-1 to T202-N and terminals T203-1 to T203-N around base stations 202 and 203. Whether or not the information about the density of the terminal T202-1 to the terminal T202-N and the terminal T203-1 to the terminal T203-N is obtained from the congestion information obtaining units 222 and 223 of the base stations 202 and 203 via the network N are judging.
　ステップＳＴ２１の処理において、密集情報取得部２２２，２２３から情報を取得していない場合（ステップＳＴ２１のＮＯ）、サーバ２０１は、密集情報取得部２２２，２２３から情報を取得するまで処理を待機する。 In the process of step ST21, if information has not been obtained from the congestion information acquisition units 222 and 223 (NO in step ST21), the server 201 waits until information is acquired from the congestion information acquisition units 222 and 223.
　ステップＳＴ２１の処理において、密集情報取得部２２２，２２３から情報を取得している場合（ステップＳＴ２１のＹＥＳ）、サーバ２０１は、基地局２０２，２０３の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度を算出する（ステップＳＴ２２）。例えば、この処理において、サーバ２０１は、密集情報取得部２２２から取得した基地局２０２と端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎとの間で無線通信を行った際の伝搬時間に基づいて、基地局２０２の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度を算出する。 In the process of step ST21, if information has been acquired from the dense information acquiring units 222 and 223 (YES in step ST21), the server 201 acquires information from the terminals T202-1 to T202-N around the base stations 202 and 203. The density of terminals T203-1 to T203-N is calculated (step ST22). For example, in this process, the server 201 performs wireless communication between the base station 202 acquired from the congestion information acquisition unit 222 and the terminal T202-1 to the terminal T202-N or the terminal T203-1 to the terminal T203-N. Based on the actual propagation time, the density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base station 202 is calculated.
　ステップＳＴ２２の処理を行うと、サーバ２０１は、算出した端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度を判定する（ステップＳＴ２３）。例えば、サーバ２０１は、算出した端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度が、所定の閾値以上であるか否かを判定する。この処理において、サーバ２０１は、基地局２０２，２０３が端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎとの間の無線通信で使用する通信方法や通信帯域を制限する必要があるか否かを判定している。 After performing the process of step ST22, the server 201 determines the calculated density of terminals T202-1 to T202-N and terminals T203-1 to T203-N (step ST23). For example, the server 201 determines whether or not the calculated density of terminals T202-1 to T202-N and terminals T203-1 to T203-N is equal to or greater than a predetermined threshold. In this process, the server 201 limits the communication method and communication band used by the base stations 202 and 203 in wireless communication between the terminals T202-1 and T202-N and between the terminals T203-1 and T203-N. Deciding whether it is necessary or not.
　ステップＳＴ２３の処理において、端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度が所定の閾値未満である場合（ステップＳＴ２３のＮＯ）、サーバ２０１は、ステップＳＴ１５の処理を行う。
　ステップＳＴ２３の処理において、端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度が所定の閾値以上である場合（ステップＳＴ２３のＹＥＳ）、サーバ１０１は、ステップＳＴ１４の処理を行う。
ステップＳＴ１４からステップＳＴ１６までの処理は、実施の形態１と同様であるため、説明を省略する。 In the process of step ST23, if the density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N is less than the predetermined threshold (NO in step ST23), the server 201 process.
In the process of step ST23, if the density of terminals T202-1 to T202-N and terminals T203-1 to T203-N is equal to or greater than a predetermined threshold (YES in step ST23), the server 101 performs process.
The processing from step ST14 to step ST16 is the same as that of the first embodiment, so the description is omitted.
　このように、実施の形態２に係るサーバ２０１は、端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎから出力された情報に基づいて基地局２０２，２０３の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度を判定し、端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度に応じて、基地局２０２，２０３が端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎとの間の無線通信に使用する通信方法や通信帯域を選択する。これにより、例えば、基地局２０２，２０３の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度が所定の閾値以上である場合に基地局２０２，２０３が端末Ｔ２０２－１から端末Ｔ２０２－Ｎと端末Ｔ２０３－１から端末Ｔ２０３－Ｎと無線通信を行う際の通信速度を制限することが可能となり、基地局２０２，２０３の周囲から別の場所へ移動を端末Ｔ２０２－１から端末Ｔ２０２－Ｎと端末Ｔ２０３－１から端末Ｔ２０３－Ｎのユーザに促すことで、人の密集度を抑制することができる。 In this way, the server 201 according to Embodiment 2 is configured to operate terminals around the base stations 202 and 203 based on the information output from the terminals T202-1 to T202-N and from the terminals T203-1 to T203-N. Determine the density of the terminal T202-N from the terminal T202-1 and the terminal T203-N from the terminal T203-1, and according to the density of the terminal T202-N from the terminal T202-1 and the terminal T203-N from the terminal T203-1 , the base stations 202 and 203 select the communication method and communication band to be used for radio communication between the terminals T202-1 and T202-N and between the terminals T203-1 and T203-N. As a result, for example, when the density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base stations 202 and 203 is equal to or higher than a predetermined threshold, the base stations 202 and 203 It is possible to limit the communication speed when wireless communication is performed from the terminal T202-1 to the terminal T202-N and from the terminal T203-1 to the terminal T203-N. By prompting the users of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N, it is possible to suppress the crowding of people.
　また、例えば、基地局２０２，２０３の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度が所定の閾値以上である場合に基地局２０２，２０３が端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎと無線通信を行う際の通信速度を制限することが可能となり、基地局２０２，２０３の周囲から別の場所への端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎのユーザに移動を促すことで、基地局２０２，２０３周辺の密集度を抑制することができる。 Further, for example, when the density of the terminals T202-1 to T202-N and the terminals T203-1 to T203-N around the base stations 202 and 203 is equal to or higher than a predetermined threshold, the base stations 202 and 203 It is possible to limit the communication speed when wireless communication is performed from T202-1 to terminal T202-N and from terminal T203-1 to terminal T203-N, and the terminal T202 from around the base stations 202 and 203 to another location can be restricted. -1 to the terminal T202-N and from the terminal T203-1 to the terminal T203-N, the density around the base stations 202 and 203 can be suppressed.
　なお、基地局のアンテナは、接続されている端末の位置する方向に関する情報を取得可能なフェーズドアレイアンテナであってもよい。基地局のアンテナがフェーズドアレイアンテナである場合、例えば、サーバは、基地局の周囲においてアンテナから視た所定の角度範囲における端末の密集度を把握することが可能になり、基地局のアンテナから視て、端末の密集度が高い所定の角度範囲内の端末に対して無線通信で使用する通信方法や通信帯域を制限し、端末の密集度が低い所定の角度範囲内の端末に対して無線通信で使用する通信方法や通信帯域を制限しないというように、１つの基地局に接続する複数の端末に対し、端末毎に使用する通信方法や通信帯域を選択することが可能になる。無線通信システム２００がこのように構成された場合、フェーズドアレイアンテナが、基地局の周囲における対象物の密集度に関する情報を取得する密集情報取得部を構成する。また、判定部は、画像センサ等のセンサと、フェーズドアレイアンテナによって取得した端末からの情報とによって、基地局の周囲における端末の密集度を判定してもよい。 It should be noted that the antenna of the base station may be a phased array antenna capable of acquiring information regarding the direction in which the connected terminal is located. When the antenna of the base station is a phased array antenna, for example, the server can grasp the density of terminals in a predetermined angular range seen from the antenna around the base station, and the number of terminals seen from the antenna of the base station can be grasped. limits the communication method and communication band used in wireless communication for terminals within a predetermined angle range where the density of terminals is high, and limits wireless communication for terminals within a predetermined angle range where the density of terminals is low. It is possible to select the communication method and communication band to be used for each terminal for a plurality of terminals connected to one base station, such that the communication method and communication band to be used are not limited. When the wireless communication system 200 is configured in this manner, the phased array antenna constitutes a congestion information acquisition unit that acquires information about the density of objects around the base station. Also, the determination unit may determine the degree of density of terminals around the base station based on information from terminals acquired by a sensor such as an image sensor and a phased array antenna.
　例えば、サーバ２０１の判定部２１１は、以下の表２に示すテーブルを持ち、基地局が配置されたエリアもしくは部屋のＩＤと、基地局ＩＤと、基地局に接続されている端末のＩＤとの対応関係を把握している。例えば、判定部２１１は、基地局の周囲における端末の密集度に関する情報に基づいて、基地局の周囲における端末の密集度を判定し、表２を用いて端末ＩＤと基地局ＩＤとの対応関係を把握し、密集度に応じて帯域制限する端末ＩＤを特定する。 For example, the determination unit 211 of the server 201 has a table shown in Table 2 below, and contains the ID of the area or room where the base station is located, the ID of the base station, and the ID of the terminal connected to the base station. I understand the correspondence. For example, the determination unit 211 determines the density of terminals around the base station based on information about the density of terminals around the base station, and uses Table 2 to determine the correspondence between terminal IDs and base station IDs. is grasped, and terminal IDs to be band-limited are specified according to the degree of congestion.
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
　具体的には、判定部２１１は、基地局２０２，２０３から送られた、基地局２０２，２０３の周囲における端末の密集度に関する情報に基づいて、基地局２０２，２０３の周囲における端末の密集度を判定する。これと同時にエリアＡをカバーする基地局２０２は、基地局２０２に接続されている端末を把握して、サーバ２０１に対し基地局２０２に接続されている端末の識別情報（端末ＩＤ）を送信する。
　通信制限部２１２は、送られた基地局ＩＤと端末ＩＤとに基づいて、例えば、基地局２０２のアンテナから視て、端末の密集度が高い所定の角度範囲内の端末と基地局２０２との間の通信速度を制限する。 Specifically, based on the information about the terminal density around the base stations 202 and 203 sent from the base stations 202 and 203, the determination unit 211 determines the terminal density around the base stations 202 and 203. judge. At the same time, the base station 202 covering the area A recognizes the terminals connected to the base station 202 and transmits identification information (terminal ID) of the terminal connected to the base station 202 to the server 201. .
Based on the transmitted base station ID and terminal ID, communication restriction unit 212 determines, for example, the distance between terminals within a predetermined angular range where the density of terminals is high and base station 202 when viewed from the antenna of base station 202. limit the communication speed between
　また、例えば、サーバは、画像センサからの画像情報に基づいて人の密集度が高い場所を判定し、基地局のアンテナから視て、人の密集度が高い場所を含む所定の角度範囲内の端末と基地局との無線通信を制限してもよい。 Also, for example, the server determines a place with a high density of people based on the image information from the image sensor, and determines the location within a predetermined angle range including the place with a high density of people as viewed from the antenna of the base station. Wireless communication between the terminal and the base station may be restricted.
　また、実施の形態２において、密集情報取得部２２２，２２３は、基地局２０２，２０３が端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎとの間で無線通信を行う際に、端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎが出力した情報に基づいて、基地局２０２，２０３の周囲における端末Ｔ２０２－１から端末Ｔ２０２－Ｎや端末Ｔ２０３－１から端末Ｔ２０３－Ｎの密集度に関する情報をアンテナを介して取得するように構成されているが、これに限定されない。例えば、密集情報取得部は、基地局の周囲における人の密集度に関する情報を取得するセンサを有して、判定部は、センサから取得した基地局の周囲における人の密集度と、アンテナを介して端末の出力情報から取得した基地局の周囲における端末の密集度と、から基地局の周囲における人又は端末の密集度を判定するように構成されていてもよい。 In addition, in the second embodiment, the dense information acquisition units 222 and 223 perform wireless communication between the base stations 202 and 203 from the terminal T202-1 to the terminal T202-N and from the terminal T203-1 to the terminal T203-N. At this time, based on the information output from the terminal T202-1 to the terminal T202-N and from the terminal T203-1 to the terminal T203-N, the terminal T202-1 to the terminal T202-N and the terminal T203 around the base stations 202 and 203 -1 to terminal T203-N through the antenna, but is not limited to this. For example, the crowd information acquisition unit has a sensor that acquires information about the density of people around the base station, and the determination unit acquires the density of people around the base station acquired from the sensor and It may be configured to determine the density of terminals around the base station obtained from the output information of the terminals, and the density of people or terminals around the base station from the obtained information.
　また、実施の形態２において、サーバ２０１は、判定部２１１及び通信制限部２１２を有しているものとしたが、これに限定されない。サーバは、判定部２１１及び通信制限部２１２以外の構成を有していてもよく、例えば、サーバは、基地局が有する密集情報取得部から基地局の周囲における対象物の密集度に関する情報を取得する密集情報取得部を有していてもよいし、複数の基地局のそれぞれに接続されている端末を識別する識別情報を、当該端末が接続されている基地局を識別可能となるように取得する識別情報取得部を有していてもよい。 Also, in Embodiment 2, the server 201 has the determination unit 211 and the communication restriction unit 212, but is not limited to this. The server may have a configuration other than the determination unit 211 and the communication restriction unit 212. For example, the server acquires information about the density of objects around the base station from the density information acquisition unit of the base station. and acquires identification information for identifying a terminal connected to each of a plurality of base stations so that the base station to which the terminal is connected can be identified. You may have the identification information acquisition part which carries out.
実施の形態３．
　次に、実施の形態３に係る無線通信システム３００について、図７及び図８を用いて説明する。図７は、実施の形態３に係る無線通信システム３００の構成の一部を示すブロック図であり、図８は、実施の形態３に係る端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎの構成の一部を示すブロック図である。
　実施の形態３に係る無線通信システム３００は、実施の形態１に係る無線通信システム１００に対し、端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎが互いに無線通信を行うことにより、端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎのそれぞれが周囲における端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎの密集度を判定し、判定結果に基づいて端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎと基地局との間で通信を行う際に使用する通信方法や通信帯域を端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎが選択する点が異なり、実施の形態１と同様の内容については、説明を省略する。 Embodiment 3.
Next, radio communication system 300 according to Embodiment 3 will be described using FIGS. 7 and 8. FIG. FIG. 7 is a block diagram showing part of the configuration of radio communication system 300 according to Embodiment 3, and FIG. 3 is a block diagram showing a part of the configuration of a terminal T303-N from FIG.
In radio communication system 300 according to Embodiment 3, terminal T302-1 to terminal T302-N and terminal T303-1 to terminal T303-N perform radio communication with each other in contrast to radio communication system 100 according to Embodiment 1. As a result, the terminals T302-1 to T302-N and the terminals T303-1 to T303-N respectively determine the density of the terminals T302-1 to T302-N and the terminals T303-1 to T303-N in the vicinity. Based on the determination result, the terminal T302-1 sets the communication method and communication band to be used when communicating between the terminal T302-1 to the terminal T302-N and the terminal T303-1 to the terminal T303-N and the base station. 1 to terminal T302-N and terminal T303-1 to terminal T303-N are selected.
　実施の形態３に係る無線通信システム３００は、ネットワークＮに接続されている複数の基地局３０２，３０３と、基地局３０２を介してネットワークＮに接続される複数の端末Ｔ３０２－１から端末Ｔ３０２―Ｎと、基地局３０３を介してネットワークＮに接続される複数の端末Ｔ３０３－１から端末Ｔ３０３－Ｎと、を備えている。
　基地局３０２，３０３は、不図示のアンテナ及び送受信機を有しており、それぞれネットワークＮに接続されて、互いに通信を行う。
　端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎは、基地局３０２，３０３に接続されて、基地局３０２，３０３及びネットワークＮを介して、互いに無線通信を行う。例えば、基地局３０２に接続されている端末Ｔ３０２－１は、基地局３０２、ネットワークＮ及び基地局３０３を介して、基地局３０３に接続されている端末Ｔ３０３－１と通信を行う。 A wireless communication system 300 according to Embodiment 3 includes a plurality of base stations 302 and 303 connected to a network N, and a plurality of terminals T302-1 to T302-1 connected to the network N via the base station 302. N, and a plurality of terminals T303-1 to T303-N connected to the network N via the base station 303.
The base stations 302 and 303 have antennas and transceivers (not shown), are connected to the network N, and communicate with each other.
Terminals T302-1 to T302-N and terminals T303-1 to T303-N are connected to base stations 302 and 303 and perform wireless communication with each other via base stations 302 and 303 and network N. FIG. For example, a terminal T302-1 connected to the base station 302 communicates with a terminal T303-1 connected to the base station 303 via the base station 302, network N and the base station 303. FIG.
　次に、図９及び図１０を参照して、端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎのハードウェア構成を説明する。図９は、端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎのハードウェア構成の一例を示す図であり、図１０は、端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎのハードウェア構成の別の例を示す図である。
　例えば、図９に示すように、端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎは、専用のハードウェアである処理回路Ｓ３を有している。処理回路Ｓ３は、例えば、単一回路、複合回路、プログラム化したプロセッサ、並列プログラム化したプロセッサ、ＡＳＩＣ（Ａｐｐｌｉｃａｔｉｏｎ　Ｓｐｅｃｉｆｉｃ　Ｉｎｔｅｇｒａｔｅｄ　Ｃｉｒｃｕｉｔ）、ＦＰＧＡ（Ｆｉｅｌｄ　Ｐｒｏｇｒａｍｍａｂｌｅ　Ｇａｔｅ　Ａｒｒａｙ）、又はこれらを組み合わせによって構成される。 Next, the hardware configurations of the terminals T302-1 to T302-N and the terminals T303-1 to T303-N will be described with reference to FIGS. 9 and 10. FIG. FIG. 9 is a diagram showing an example of the hardware configuration of terminals T302-1 to T302-N and terminals T303-1 to T303-N. FIG. FIG. 10 is a diagram showing another example of the hardware configuration of terminals T303-1 to T303-N;
For example, as shown in FIG. 9, terminals T302-1 to T302-N and terminals T303-1 to T303-N have a processing circuit S3 which is dedicated hardware. The processing circuit S3 is configured by, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof.
　また、例えば、図１０に示すように、端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎは、メモリＭ３とプロセッサＰ３とを有し、メモリＭ３に格納されるプログラムをプロセッサＰ３が読み出して実行するように構成されている。このように、端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎの各機能は、専用のハードウェアである処理回路Ｓ３又はプロセッサＰ３がプログラムを実行することによって実現される。 Further, for example, as shown in FIG. 10, the terminals T302-1 to T302-N and the terminals T303-1 to T303-N have a memory M3 and a processor P3, and execute programs stored in the memory M3. It is configured to be read and executed by processor P3. In this way, the functions of terminals T302-1 to T302-N and terminals T303-1 to T303-N are realized by the processing circuit S3 or processor P3, which is dedicated hardware, executing a program. .
　次に、図７及び図８を参照して、無線通信システム３００の詳細について説明する。端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎは、通信部Ｔ３１、判定部Ｔ３２、通信制限部Ｔ３３を有している。通信部Ｔ３１、判定部Ｔ３２及び通信制限部Ｔ３３の機能は、上述した専用のハードウェアである処理回路Ｓ３（図９参照）又はプロセッサＰ３（図１０参照）がプログラムを実行することによって実現される。 Next, details of the wireless communication system 300 will be described with reference to FIGS. 7 and 8. FIG. Terminals T302-1 to T302-N and terminals T303-1 to T303-N have a communication section T31, a determination section T32, and a communication restriction section T33. The functions of the communication unit T31, the determination unit T32, and the communication restriction unit T33 are realized by executing a program by the processing circuit S3 (see FIG. 9) or the processor P3 (see FIG. 10), which is the dedicated hardware described above. .
　通信部Ｔ３１は、基地局３０２，３０３と無線通信を行う。また、通信部Ｔ３１は、他の端末が有する通信部Ｔ３１と、基地局３０２，３０３を介さずに、例えば、Ｂｌｕｅｔｏｏｔｈ（登録商標）などの通信規格を用いて近距離無線通信を行う。また、通信部Ｔ３１は、他の端末が有する通信部Ｔ３１と近距離無線通信を行うことによって、周囲の端末Ｔ３０２－１から端末Ｔ３０２－Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎの密集度に関する情報を取得する。なお、端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎが車両、又は車両と共に移動する移動端末であれば、例えば、第５世代移動通信システム（５Ｇ）のＰＣ５方式の様な近距離無線通信を行う。また、例えば、通信部Ｔ３１は、他の端末が有する通信部Ｔ３１と近距離無線通信を行うことによって、現在近距離無線通信が可能な端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎの数を取得する。 The communication unit T31 performs wireless communication with the base stations 302 and 303. Also, the communication unit T31 performs short-range wireless communication with the communication unit T31 of another terminal using a communication standard such as Bluetooth (registered trademark) without going through the base stations 302 and 303 . In addition, the communication unit T31 performs short-range wireless communication with the communication units T31 of other terminals to obtain information about the density of the surrounding terminals T302-1 to T302-N and the terminals T303-1 to T303-N. Get information. If the terminal T302-1 to the terminal T302-N and the terminal T303-1 to the terminal T303-N are mobile terminals that move in a vehicle or move with the vehicle, for example, the PC5 system of the fifth generation mobile communication system (5G) Various short-range wireless communication is performed. Further, for example, the communication unit T31 performs short-range wireless communication with the communication unit T31 of another terminal, thereby performing short-range wireless communication between the terminal T302-1 to the terminal T302-N and the terminal T303-1 capable of short-range wireless communication. Get the number of terminals T303-N.
　判定部Ｔ３２は、通信部Ｔ３１が他の端末が有する通信部Ｔ３１と近距離無線通信を行うことによって取得した、周囲の端末の密集度に関する情報に基づいて、周囲の端末の密集度を判定する。例えば、判定部Ｔ３２は、通信部Ｔ３１が取得した、現在近距離無線通信が可能な端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎの数が、管理者があらかじめ設定した所定の閾値以上であるか否かを判定する。 The determining unit T32 determines the density of surrounding terminals based on the information about the density of the surrounding terminals, which is acquired by the communication unit T31 performing short-range wireless communication with the communication unit T31 of another terminal. . For example, the determination unit T32 determines in advance the numbers of terminals T302-1 to T302-N and terminals T303-1 to T303-N that are currently capable of short-range wireless communication, which are acquired by the communication unit T31. It is determined whether or not it is equal to or greater than a predetermined threshold value.
　通信制限部Ｔ３３は、判定部Ｔ３２の判定結果に基づいて、通信部Ｔ３１が基地局との間の無線通信を制限する。例えば、通信制限部Ｔ３３は、判定部Ｔ３２が周囲の端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎの密集度が所定の閾値以上であると判定した場合、基地局３０２との間での無線通信に使用する通信帯域として、他の通信帯域よりも通信速度の低い通信帯域を選択し、選択した通信帯域を使用して基地局３０２との無線通信を行う。また、例えば、通信制限部Ｔ３３は、判定部Ｔ３２が周囲の端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎの密集度が所定の閾値以上であると判定した場合、基地局３０２との間での無線通信に使用する通信方法として、他の通信方法よりも通信速度の低い通信方法を選択し、選択した通信方法を使用して基地局３０２との無線通信を行う。 The communication restriction unit T33 restricts wireless communication between the communication unit T31 and the base station based on the determination result of the determination unit T32. For example, when the determination unit T32 determines that the density of the surrounding terminals T302-1 to T302-N and the terminals T303-1 to T303-N is equal to or greater than a predetermined threshold, the communication restriction unit T33 determines that the base station A communication band with a lower communication speed than other communication bands is selected as a communication band to be used for wireless communication with base station 302, and wireless communication with base station 302 is performed using the selected communication band. Further, for example, when the determination unit T32 determines that the density of the surrounding terminals T302-1 to T302-N and the terminals T303-1 to T303-N is equal to or greater than a predetermined threshold, A communication method with a lower communication speed than other communication methods is selected as a communication method to be used for wireless communication with the base station 302, and wireless communication with the base station 302 is performed using the selected communication method. .
　次に、図１１を参照して、端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎが行う処理について説明する。図１１は、一例として端末Ｔ３０２－１が行う処理を示すフローチャートである。
　端末Ｔ３０２－１は、処理を開始すると、まず、他の端末（例えば、Ｔ３０２－２）の通信部Ｔ３１から、周囲の端末の密集度に関する情報を取得したか否かを判定する（ステップＳＴ３１）。この処理において、端末Ｔ３０２－１は、周囲における端末の密集度を判定するため、周囲における他の端末と近距離無線通信を行い、端末Ｔ３０２－１周辺の密集度に関する情報を取得したか否かを判定している。 Next, referring to FIG. 11, processing performed by terminals T302-1 to T302-N and terminals T303-1 to T303-N will be described. FIG. 11 is a flow chart showing the processing performed by the terminal T302-1 as an example.
When starting the process, the terminal T302-1 first determines whether or not it has acquired information about the density of surrounding terminals from the communication section T31 of another terminal (for example, T302-2) (step ST31). . In this process, in order to determine the density of terminals in the surrounding area, the terminal T302-1 performs short-range wireless communication with other terminals in the vicinity, and determines whether or not information regarding the density around the terminal T302-1 has been acquired. are judging.
　ステップＳＴ３１の処理において、例えば他の端末が密集度に関する情報を取得していない場合（ステップＳＴ３１のＮＯ）、端末Ｔ３０２－１は、密集度に関する情報を取得するまで処理を待機する。 In the process of step ST31, for example, if other terminals have not acquired information on the degree of congestion (NO in step ST31), the terminal T302-1 waits until it acquires information on the degree of congestion.
　ステップＳＴ３１の処理において、例えば他の端末が密集度に関する情報を取得している場合（ステップＳＴ３１のＹＥＳ）、端末Ｔ３０２－１は、取得した情報に基づいて判定部Ｔ３２によって周囲における端末の密集度を算出する（ステップＳＴ３２）。例えば、この処理において、端末Ｔ３０２－１は、通信部Ｔ３１が取得した情報に基づいて判定部Ｔ３２によって周囲における近距離無線通信が可能な端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎの数を算出する。 In the process of step ST31, for example, if other terminals have acquired information about the density (YES in step ST31), the terminal T302-1 determines the density of terminals in the vicinity by the determination unit T32 based on the acquired information. is calculated (step ST32). For example, in this process, the terminal T302-1 determines, based on the information acquired by the communication unit T31, the terminal T302-1 to terminal T302-N capable of near field communication and the terminal T303-1 to Calculate the number of terminals T303-N.
　ステップＳＴ３２の処理を行うと、端末Ｔ３０２－１は、判定部Ｔ３２によって算出した人の密集度が所定の閾値以上であるか否かを判定する（ステップＳＴ３３）。この処理において、端末Ｔ３０２－１は、基地局３０２，３０３と端末Ｔ３０２－１との間の無線通信で使用する通信方法や通信帯域を制限する必要があるか否かを判定している。 After performing the process of step ST32, the terminal T302-1 determines whether or not the density of people calculated by the determination unit T32 is equal to or greater than a predetermined threshold (step ST33). In this process, the terminal T302-1 determines whether or not it is necessary to limit the communication method and communication band used in wireless communication between the base stations 302 and 303 and the terminal T302-1.
　ステップＳＴ３３の処理において、端末Ｔ３０２－１周辺の密集度が所定の閾値未満である場合（ステップＳＴ３３のＮＯ）、端末Ｔ３０２－１は、基地局３０２，３０３との無線通信の制限を解除することを決定する（ステップＳＴ３５）。この処理において、端末Ｔ３０２－１は、周囲における端末の密集度が所定の閾値未満であることに基づいて、基地局３０２，３０３と端末Ｔ３０２－１との間の無線通信に通信速度が低下する制限を設けず、ユーザに対して高速な通信を提供することを決定している。 In the process of step ST33, if the density around the terminal T302-1 is less than the predetermined threshold (NO in step ST33), the terminal T302-1 cancels the restriction on wireless communication with the base stations 302 and 303. is determined (step ST35). In this process, terminal T302-1 reduces the communication speed of wireless communication between base stations 302 and 303 and terminal T302-1 based on the fact that the density of terminals in the surrounding area is less than a predetermined threshold. It has decided to provide users with high-speed communication without any restrictions.
　ステップＳＴ３３の処理において、端末Ｔ３０２－１の密集度が所定の閾値以上である場合（ステップＳＴ３３のＹＥＳ）、端末Ｔ３０２－１は、基地局３０２，３０３との無線通信を制限することを決定する（ステップＳＴ３４）。この処理において、端末Ｔ３０２－１は、周囲における端末の密集度が所定の閾値以上であることに基づいて、基地局３０２，３０３と端末Ｔ３０２－１との間の無線通信に制限を設けることを決定している。例えば、基地局３０２と端末Ｔ３０２－１との間の無線通信に第１通信方法と、第１通信方法よりも高い通信速度での通信が可能な第２通信方法との２つの通信方法が使用可能である場合、この処理において、端末Ｔ３０２－１は、基地局３０２との無線通信を行う際に第２通信方法の使用を制限し、第２通信方法よりも通信速度が低い第１通信方法を使用することを決定する。 In the processing of step ST33, if the density of the terminal T302-1 is equal to or greater than the predetermined threshold (YES in step ST33), the terminal T302-1 decides to restrict wireless communication with the base stations 302 and 303. (Step ST34). In this process, the terminal T302-1 limits wireless communication between the base stations 302 and 303 and the terminal T302-1 based on the fact that the density of terminals in the surrounding area is equal to or greater than a predetermined threshold. have decided. For example, two communication methods are used for wireless communication between the base station 302 and the terminal T302-1: a first communication method and a second communication method capable of communication at a higher communication speed than the first communication method. If possible, in this process, the terminal T302-1 restricts the use of the second communication method when performing wireless communication with the base station 302, and uses the first communication method whose communication speed is lower than that of the second communication method. decide to use
　ステップＳＴ３４又はステップＳＴ３５の処理を行うと、端末Ｔ３０２－１は、基地局３０２，３０３に対して無線通信の制限に応じた信号を送信する。例えば、サーバ１０１は、基地局３０２，３０３に対して無線通信に使用可能な通信方法や通信帯域に応じた信号を送信し（ステップＳＴ３６）、基地局３０２，３０３との無線通信を行う。ステップＳＴ３６の処理を行うと、端末Ｔ３０２－１は、処理をステップＳＴ３１へ戻す。 After performing the process of step ST34 or step ST35, the terminal T302-1 transmits a signal corresponding to the restriction of wireless communication to the base stations 302 and 303. For example, the server 101 transmits to the base stations 302 and 303 a signal corresponding to the communication method and communication band that can be used for wireless communication (step ST36), and performs wireless communication with the base stations 302 and 303. FIG. After performing the process of step ST36, the terminal T302-1 returns the process to step ST31.
　このように、実施の形態３に係る端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎは、周囲における端末の密集度に応じて、基地局１０２，１０３と端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎとの間の無線通信を制限する。これにより、例えば、周囲における端末の密集度が所定の閾値以上である場合に基地局３０２，３０３と端末Ｔ３０２－１から端末Ｔ３０２―Ｎや端末Ｔ３０３－１から端末Ｔ３０３－Ｎとの無線通信を行う際の通信速度を制限することが可能となり、端末の密集度が高い場所から端末の密集度が低い場所への端末Ｔ３０２－１から端末Ｔ３０２－Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎのユーザの移動を促すことで、端末Ｔ３０２－１から端末Ｔ３０２－Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎの密集度を抑制することができる。 In this way, terminals T302-1 to T302-N and terminals T303-1 to T303-N according to Embodiment 3 are connected to base stations 102 and 103 and terminals T302-N according to the density of terminals in the vicinity. 1 to terminal T302-N and terminal T303-1 to terminal T303-N. As a result, for example, when the density of terminals in the surrounding area is equal to or higher than a predetermined threshold, wireless communication between the base stations 302 and 303 and the terminal T302-1 to the terminal T302-N and the terminal T303-1 to the terminal T303-N can be performed. It is possible to limit the communication speed at the time of communication, and from the terminal T302-1 to the terminal T302-N and from the terminal T303-1 to the terminal T303-N from a place with a high density of terminals to a place with a low density of terminals. By urging users to move, it is possible to reduce the density of the terminals T302-1 to T302-N and the terminals T303-1 to T303-N.
　なお、実施の形態３において、端末Ｔ３０２－１から端末Ｔ３０２－Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎは、周囲における端末の密集度に関する情報として、現在近距離無線通信が可能な端末Ｔ３０２－１から端末Ｔ３０２―Ｎと端末Ｔ３０３－１から端末Ｔ３０３－Ｎの数を取得する例について説明したが、これに限定されない。端末は、他の端末と近距離無線通信を行うことによって周囲の端末の密集度に関する情報を取得可能であればよく、例えば、端末は、近距離無線通信によって、他の端末の位置情報を取得可能な不図示の位置情報取得部を有し、周囲の端末の密集度に関する情報として、他の端末の位置情報を取得するように構成されていてもよい。 In the third embodiment, the terminals T302-1 to T302-N and the terminals T303-1 to T303-N receive the terminal T302-N, which is currently capable of short-range wireless communication, as information about the density of terminals in the vicinity. 1 to the terminal T302-N and from the terminal T303-1 to the terminal T303-N have been described, but the present invention is not limited to this. A terminal only needs to be able to acquire information about the density of surrounding terminals by performing short-range wireless communication with other terminals. For example, a terminal acquires location information of other terminals through short-range wireless communication. It may be configured to have a positional information acquisition unit (not shown) capable of acquiring positional information of other terminals as information on the degree of density of surrounding terminals.
　なお、各実施の形態の組み合わせまたは実施の形態のそれぞれの任意の構成要素の変形もしくは実施の形態のそれぞれにおいて任意の構成要素の省略が可能である。 It should be noted that it is possible to omit any component in each of the combinations of the embodiments, the modification of the components of each of the embodiments, or the configuration of each of the embodiments.
　本開示に係る無線通信制御装置は、例えば、モバイル端末等を用いた無線通信の制御に利用することができる。 A wireless communication control device according to the present disclosure can be used, for example, to control wireless communication using mobile terminals and the like.
　１０１，２０１　サーバ、１０２，１０３，２０２，２０３，３０２，３０３　基地局、１１１，２１１，Ｔ３２　判定部、１１２，２１２，Ｔ３３　通信制限部、１１３　識別情報取得部、１２１，１２２　センサ、１１４，２２２，２２３　密集情報取得部、Ｔ１，Ｔ２，Ｔ３　端末、Ｔ３１　通信部。 101, 201 servers, 102, 103, 202, 203, 302, 303 base stations, 111, 211, T32 determination units, 112, 212, T33 communication restriction units, 113 identification information acquisition units, 121, 122 sensors, 114, 222 , 223 Dense information acquisition unit, T1, T2, T3 terminals, T31 communication unit.

Claims (12)

  1. 　複数の端末との間で無線通信を行う基地局の周囲において、対象物の密集度を判定する判定部と、
    　前記複数の端末と前記基地局との間での無線通信を制限する通信制限部と、を備え、
    　前記通信制限部は、前記判定部の判定結果に基づいて前記複数の端末と前記基地局との無線通信を制限する
    　ことを特徴とする無線通信制御装置。     A determination unit that determines the density of objects around a base station that performs wireless communication with a plurality of terminals;
    a communication restriction unit that restricts wireless communication between the plurality of terminals and the base station;
    The radio communication control device, wherein the communication restriction unit restricts wireless communication between the plurality of terminals and the base station based on the determination result of the determination unit.
  2. 　前記判定部は、前記基地局の周囲において、前記対象物の密集度の高い場所と前記対象物の密集度の低い場所とを判定し、
    　前記通信制限部は、前記対象物の密集度の高い場所に位置する端末と前記基地局との無線通信が、前記対象物の密集度の低い場所に位置する端末と前記基地局との無線通信よりも通信速度が低くなるように、前記判定部の判定結果に基づいて対象物の密集度の高い場所に位置する端末と前記基地局との無線通信に使用する通信方式を選択する
    　ことを特徴とする請求項１記載の無線通信制御装置。     The determining unit determines a place where the density of the objects is high and a place where the density of the objects is low around the base station,
    The communication restriction unit restricts wireless communication between a terminal located in a location where the density of objects is high and the base station to be wireless communication between a terminal located in a location where the density of objects is low and the base station. selecting a communication method to be used for wireless communication between a terminal located in a location with a high density of objects and the base station based on the determination result of the determination unit so that the communication speed is lower than 2. The radio communication control device according to claim 1.
  3. 　前記判定部は、前記基地局の周囲において、前記対象物の密集度の高い場所と前記対象物の密集度の低い場所とを判定し、
    　前記通信制限部は、前記対象物の密集度の高い場所に位置する端末と前記基地局との無線通信が、前記対象物の密集度の低い場所に位置する端末と前記基地局との無線通信よりも通信速度が低くなるように、前記判定部の判定結果に基づいて前記対象物の密集度の高い場所に位置する端末と前記基地局との無線通信に使用する通信帯域を制限する
    　ことを特徴とする請求項１記載の無線通信制御装置。     The determining unit determines a place where the density of the objects is high and a place where the density of the objects is low around the base station,
    The communication restriction unit restricts wireless communication between a terminal located in a location where the density of objects is high and the base station to be wireless communication between a terminal located in a location where the density of objects is low and the base station. limiting the communication band used for wireless communication between the base station and the terminal located in the location where the object is highly concentrated based on the determination result of the determination unit so that the communication speed is lower than the 2. The radio communication control device according to claim 1.
  4. 　前記基地局の周囲における前記対象物の密集度に関する情報を取得する密集情報取得部を備え、
    　前記判定部は、前記密集情報取得部が取得した情報に基づいて、前記基地局の周囲における前記対象物の密集度を判定する
    　ことを特徴とする請求項１記載の無線通信制御装置。     a congestion information acquisition unit that acquires information about the density of the objects around the base station;
    The radio communication control apparatus according to claim 1, wherein the determination unit determines the density of the objects around the base station based on the information acquired by the congestion information acquisition unit.
  5. 　前記密集情報取得部は、画像センサから前記基地局の周囲における画像情報を取得し、
    　前記判定部は、前記基地局のＩＤと前記画像情報のＩＤとの対応関係を示すテーブルを有し、前記テーブルと前記密集情報取得部が取得した前記画像情報とに基づいて、前記基地局の周囲における前記対象物の密集度を判定する
    　ことを特徴とする請求項４記載の無線通信制御装置。     The congestion information acquisition unit acquires image information around the base station from an image sensor,
    The determination unit has a table indicating the correspondence relationship between the ID of the base station and the ID of the image information, and based on the table and the image information acquired by the congestion information acquisition unit, 5. The wireless communication control device according to claim 4, wherein the density of the objects in the surroundings is determined.
  6. 　前記密集情報取得部は、画像センサから前記基地局の周囲における画像情報を取得し、
    　前記判定部は、前記密集情報取得部が取得した前記画像情報に基づいて、前記基地局の周囲における前記対象物の密集度を判定する
    　ことを特徴とする請求項４記載の無線通信制御装置。     The congestion information acquisition unit acquires image information around the base station from an image sensor,
    5. The wireless communication control apparatus according to claim 4, wherein the determination unit determines the density of the objects around the base station based on the image information acquired by the density information acquisition unit.
  7. 　前記密集情報取得部は、温度センサから前記基地局の周囲における対象物が発する温度に関する情報を取得し、
    　前記判定部は、前記密集情報取得部が取得した前記温度に関する情報に基づいて、前記基地局の周囲における前記対象物の密集度を判定する
    　ことを特徴とする請求項４または５記載の無線通信制御装置。     The crowd information acquisition unit acquires information about the temperature emitted by objects around the base station from a temperature sensor,
    6. The wireless communication according to claim 4, wherein the determination unit determines the degree of density of the objects around the base station based on the temperature information acquired by the density information acquisition unit. Control device.
  8. 　前記対象物は、人であり、
    　前記密集情報取得部は、二酸化炭素センサから前記基地局の周囲における二酸化炭素濃度に関する情報を取得し、
    　前記判定部は、前記密集情報取得部が取得した前記二酸化炭素濃度に関する情報に基づいて、前記基地局の周囲における人の密集度を判定する
    　ことを特徴とする請求項４または５記載の無線通信制御装置。     the object is a person,
    The congestion information acquisition unit acquires information about the carbon dioxide concentration around the base station from the carbon dioxide sensor,
    6. The wireless communication according to claim 4, wherein the determination unit determines the density of people around the base station based on the information about the carbon dioxide concentration acquired by the congestion information acquisition unit. Control device.
  9. 　前記対象物は、端末であり、
    　前記密集情報取得部は、前記複数の端末が出力した情報に基づいて、前記基地局の周囲における端末の密集度に関する情報を取得し、
    　前記判定部は、前記密集情報取得部が取得した情報に基づいて、前記基地局の周囲における端末の密集度を判定する
    　ことを特徴とする請求項４記載の無線通信制御装置。     the object is a terminal,
    The crowding information acquisition unit acquires information about the density of terminals around the base station based on the information output by the plurality of terminals,
    5. The radio communication control apparatus according to claim 4, wherein the determination unit determines the density of terminals around the base station based on the information acquired by the congestion information acquisition unit.
  10. 　他の端末との間で無線通信を行う通信部と、
    　前記通信部が前記他の端末から受信した情報に基づいて、周囲の端末の密集度を判定する判定部と、
    　基地局との間での無線通信を制限する通信制限部と、を備え、
    　前記通信制限部は、前記判定部の判定結果に基づいて前記基地局との無線通信を制限する
    　ことを特徴とする端末。     a communication unit that performs wireless communication with another terminal;
    a determination unit that determines the density of surrounding terminals based on the information received from the other terminal by the communication unit;
    a communication restriction unit that restricts wireless communication with a base station,
    The terminal, wherein the communication restriction unit restricts wireless communication with the base station based on the determination result of the determination unit.
  11. 　判定部と、通信制限部とを備えた装置が行う無線通信制御方法であって、
    　判定部が、複数の端末との間で無線通信を行う基地局の周囲において、対象物の密集度を判定するステップと、
    　通信制限部が、前記複数の端末と前記基地局との間での無線通信を制限するステップと、を備え、
    　前記通信制限部は、前記判定部の判定結果に基づいて前記複数の端末と前記基地局との無線通信を制限する
    　ことを特徴とする無線通信制御方法。     A wireless communication control method performed by a device comprising a determination unit and a communication restriction unit,
    a determination unit determining the density of objects around a base station that performs wireless communication with a plurality of terminals;
    a step of a communication restriction unit restricting wireless communication between the plurality of terminals and the base station;
    The wireless communication control method, wherein the communication restriction unit restricts wireless communication between the plurality of terminals and the base station based on the determination result of the determination unit.
  12. 　通信部と、判定部と、通信制限部とを備えた端末が行う無線通信制御方法であって、
    　通信部が、他の端末との間で無線通信を行うステップと、
    　判定部が、前記通信部が前記他の端末から受信した情報に基づいて、周囲の端末の密集度を判定するステップと、
    　通信制限部が、基地局との間での無線通信を制限するステップと、を備え、
    　前記通信制限部は、前記判定部の判定結果に基づいて前記基地局との無線通信を制限する
    　ことを特徴とする無線通信制御方法。     A wireless communication control method performed by a terminal comprising a communication unit, a determination unit, and a communication restriction unit,
    a step in which the communication unit performs wireless communication with another terminal;
    a determination unit determining the density of surrounding terminals based on the information received by the communication unit from the other terminals;
    a step of the communication restriction unit restricting wireless communication with the base station;
    The radio communication control method, wherein the communication restriction unit restricts wireless communication with the base station based on the determination result of the determination unit.
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