JP7209899B1 - Radio communication control device, terminal and radio communication control method - Google Patents

Abstract

A radio communication control device (101) includes a determination unit (111) that determines the density of objects around base stations (101, 102) that perform radio communication with a plurality of terminals (T1); a communication restriction unit (112) that restricts wireless communication between the terminal (T1) and the base station (101, 102), and the communication restriction unit (112) determines the determination result of the determination unit (111) wireless communication between a plurality of terminals and base stations (101, 102) is restricted based on

Description

The present disclosure relates to a radio communication control device, a terminal, and a radio communication control method.

Conventionally, a wireless communication system is known 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.

JP 2018-137552 A

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

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 according to the present disclosure is a moving object at a location where a first terminal is located and a location where a second terminal is located, around a base station that performs wireless communication with a plurality of terminals. and a communication restriction unit that restricts wireless communication between a plurality of terminals and a base station . is higher than the density of objects at the location where the second terminal is located , the wireless communication between the first terminal and the base station is higher than the wireless communication between the second terminal and the base station. The present invention is characterized in that wireless communication between a plurality of terminals and a base station is restricted based on the determination result of the determining section so that the communication speed is lowered.

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.

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. 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. 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;

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.

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.

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.

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.

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 as a set to the determination unit 111 . 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.

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.

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

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.

Further, 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.

Next, 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.

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. FIG. 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).

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).

Further, as described above, the determination 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.

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.

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 Embodiment 1, the case where "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.

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

For example, when people are concentrated in a specific area, it may not be possible to effectively utilize available resources and equipment such as seats, desks, aisles, and spaces. In the radio communication system 100 of Embodiment 1, the server 101 determines whether the base stations 102 and 103 are connected from the terminal T102 to the terminal T102-N or the terminal T103-1 according to the density of people around the base stations 102 and 103. to the terminal T103-N.

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.

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.

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. FIG.

In the process of step ST11, if information has been obtained 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 obtained 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 .

After performing the process of step ST12, the server 101 determines whether or not the calculated density of people is equal to or greater than 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.

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.

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.

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.

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. .

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 sending users of the terminals T102-1 to T102-N and 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.

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

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.

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 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.

Further, in Embodiment 1, the sensors 121 and 122 have been described as image sensors that acquire image information around the base stations 102 and 103, 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

Moreover, 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

Moreover, 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.

Also, the antenna of the base station may be a phased array antenna capable of wireless communication using different communication methods and different 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 higher 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.

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

Further, 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.

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 will be omitted.

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.

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 perform wireless communication with the base stations 202 and 203, phenomena such as an increase in information propagation time and a decrease in radio wave intensity occur.

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 information propagation time, radio wave intensity, number of connected terminals T202-1 to T202-N and terminals T203-1 to T203-N, etc., so that 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. 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.

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.

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. FIG.

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 acquiring 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.

After performing the process of step ST22, the server 201 determines the calculated density of the terminals T202-1 to T202-N and the 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.

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.

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 , base stations 202 and 203 select the communication method and communication band to be used for wireless communication between terminals T202-1 and T202-N and between 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.

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.

Note that the antenna of the base station may be a phased array antenna capable of acquiring information about 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.

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.

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

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.

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.

Moreover, in Embodiment 2, the server 201 has the determination unit 211 and the communication restriction unit 212, but the present invention 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.

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 each determine the density of the terminals T302-1 to T302-N and the terminals T303-1 to T303-N in the surrounding area. 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 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.

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.

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. .

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. .

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.

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. 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. .

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. is judged.

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.

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.

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.

In the processing 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. We have decided to provide users with high-speed communication without any restrictions.

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

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. FIG. 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.

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.

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.

It should be noted that it is possible to combine the embodiments, modify arbitrary constituent elements of each embodiment, or omit arbitrary constituent elements from each embodiment.

A radio communication control apparatus according to the present disclosure can be used, for example, to control radio communication using a mobile terminal or the like.

101,201 server, 102,103,202,203,302,303 base station, 111,211,T32 determination unit, 112,212,T33 communication restriction unit, 113 identification information acquisition unit, 121,122 sensor, 114,222 , 223 dense information acquisition unit, T1, T2, T3 terminals, and T31 communication unit.

Claims (12)

Judgment to determine the degree of density of objects, which are moving objects, at locations where a first terminal is located and locations where a second terminal is located, around a base station that wirelessly communicates with a plurality of terminals Department and
a communication restriction unit that restricts wireless communication between the plurality of terminals and the base station;
When the density of the objects at the location where the first terminal is located is higher than the density of the objects at the location where the second terminal is located , the communication restriction unit may restrict the second terminal to the location where the second terminal is located. and the base station, based on the determination result of the determination unit, such that the communication speed of the wireless communication between the first terminal and the base station is lower than that of the wireless communication with the base station. A wireless communication control device characterized by limiting wireless communication of The determination unit determines the density of the objects at a location where the first terminal is located and a location where the second terminal is located, around the base station;
When the density of the objects at the location where the first terminal is located is higher than the density of the objects at the location where the second terminal is located , the communication restriction unit may restrict the second terminal to the location where the second terminal is located. and the base station, based on the determination result of the determination unit, such that the communication speed of the wireless communication between the first terminal and the base station is lower than the wireless communication speed of the wireless communication between the first terminal and the base station. 2. The radio communication control device according to claim 1, wherein a communication method to be used for radio communication with is selected. The determination unit determines the density of the objects at a location where the first terminal is located and a location where the second terminal is located, around the base station;
When the density of the objects at the location where the first terminal is located is higher than the density of the objects at the location where the second terminal is located , the communication restriction unit may restrict the second terminal to the location where the second terminal is located. and the base station, based on the determination result of the determination unit, such that the communication speed of the wireless communication between the first terminal and the base station is lower than the wireless communication speed of the wireless communication between the first terminal and the base station. 2. The radio communication control device according to claim 1, wherein the communication band used for radio communication with is restricted. 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. 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. 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. 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. 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. 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. A terminal as its own device that performs wireless communication with another terminal,
a communication unit that performs wireless communication with another terminal;
a determination unit that determines a density of terminals around the own device based on information received from the other terminal by the communication unit;
a communication restriction unit that restricts wireless communication with a base station,
When the density of terminals around the own device is higher than a predetermined threshold value set in advance , the communication restriction unit is configured such that when the density of terminals around the own device is lower than the threshold A terminal that restricts wireless communication with the base station based on the determination result of the determination unit so that a communication speed with the base station becomes low. A wireless communication control method performed by a device comprising a determination unit and a communication restriction unit,
Where the determination unit performs wireless communication with a plurality of terminals, in a location where a first terminal is located and a location where a second terminal is located , objects that are moving objects are concentrated. determining the degree of
the communication restriction unit restricting wireless communication between the plurality of terminals and the base station;
When the density of the objects at the location where the first terminal is located is higher than the density of the objects at the location where the second terminal is located , the communication restriction unit may restrict the second terminal to the location where the second terminal is located. and the base station, based on the determination result of the determination unit, such that the communication speed of the wireless communication between the first terminal and the base station is lower than that of the wireless communication with the base station. A wireless communication control method, characterized in that the wireless communication is restricted. A wireless communication control method performed by a terminal as its own device that includes a communication unit, a determination unit, and a communication restriction unit and performs wireless communication with another terminal ,
a step in which the communication unit performs wireless communication with another terminal;
a step in which the determining unit determines the density of terminals around the own device based on information received by the communication unit from the other terminals;
the communication restriction unit restricting wireless communication with a base station;
When the density of terminals around the own device is higher than a predetermined threshold value set in advance , the communication restriction unit is configured such that when the density of terminals around the own device is lower than the threshold A wireless communication control method, comprising: restricting wireless communication with the base station based on the determination result of the determination unit so that a communication speed with the base station becomes low.

Images