WO2023105738A1 - Base station control system, base station control device, server, and method for controlling base station - Google Patents

Abstract

In order to improve equity with respect to the quality of a communication service for mobile bodies when providing the communication service from a base station to the mobile bodies, this base station control system (1) comprises: a determining means (12) that determines, on the basis of quality information, the quality of a communication service to a mobile body (30) at a second intersection that is the movement destination of the mobile body (30) and is different from a first intersection; and an instructing means (13) that instructs a second base station (20-2) that provides the communication service at the second intersection to provide the communication service on the basis of the quality determined by the determining means (12).

Description

BASE STATION CONTROL SYSTEM, BASE STATION CONTROL DEVICE, SERVER AND BASE STATION CONTROL METHOD

The present invention relates to a base station control system, a base station control device, a server, and a base station control method.

Patent Document 1 discloses a communication system that executes resource allocation according to the value of data to be transmitted when allocating wireless resources to a plurality of in-vehicle terminals.

JP 2019-140433 A

However, depending on the radio resource allocation format, an event may occur in which mobile units are allocated unfairly.

For example, Patent Document 1 is a method of allocating wireless resources based on the value of data, so there is a possibility that fairness in the quality of communication services cannot be maintained between in-vehicle terminals, that is, vehicles traveling on the same road. have a nature. In addition, if a method is adopted to determine the priority of communication services based on some criteria, vehicles with low priority may continue to be unable to receive services. Such a problem can also arise in the case of moving bodies other than vehicles.

The present invention provides a base station control system, a base station control device, a server, and a base station control method that can improve the fairness of communication service quality in mobile units when communication services are provided from base stations to mobile units. intended to provide

A base station control system according to an aspect of the present invention includes acquisition means for acquiring quality information of a communication service provided from a first base station to a moving object passing through a first intersection; determination means for determining the quality of communication service for the mobile object at a second intersection different from the first intersection, located at the destination of the mobile object, based on the data; and an instruction means for instructing the providing second base station to provide a communication service based on the quality determined by the determination means.

A base station control device according to an aspect of the present invention includes acquisition means for acquiring quality information of a communication service provided from a first base station to a moving object passing through a first intersection; determination means for determining the quality of communication service for the mobile object at a second intersection different from the first intersection, located at the destination of the mobile object, based on the data; and an instruction means for instructing the providing second base station to provide a communication service based on the quality determined by the determination means.

A server according to an aspect of the present invention includes acquisition means for acquiring quality information of a communication service provided from a first base station to a mobile object passing through a first intersection, and based on the quality information, determining means for determining the quality of communication service for the mobile object at a second intersection different from the first intersection, located at the destination of the mobile object; an instruction means for instructing the second base station to provide a communication service based on the quality determined by the determination means; and an image from a camera installed at the first intersection. is obtained, based on the image obtained from the camera, the destination of the moving body passing through the first intersection is specified, and information on the destination of the moving body is provided to the base station control device. do.

A base station control method according to an aspect of the present invention acquires quality information of a communication service provided to a moving object passing through a first intersection from a first base station, and based on the quality information, , determining the quality of communication service for the mobile object at a second intersection different from the first intersection, located at the destination of the mobile object, and providing the communication service at the second intersection; The base station is instructed to provide communication services based on the quality determined by the determining means.

According to the present invention, when communication services are provided from a base station to mobile units, it is possible to improve the fairness of the quality of communication services in mobile units.

1 is a diagram showing the configuration of a base station control system according to the first exemplary embodiment of the present invention together with exemplary base stations and vehicles; FIG. 1 is a diagram showing the configuration of a base station controller according to the first exemplary embodiment of the present invention together with exemplary base stations and vehicles; FIG. Fig. 3 is a flow diagram showing the flow of a method for controlling a base station according to the first exemplary embodiment of the present invention; FIG. 2 is a diagram for explaining an example of a positional relationship between a base station and a mobile object; FIG. FIG. 4 is a diagram showing the configuration of a base station control system according to a second exemplary embodiment of the present invention together with exemplary base stations and vehicles; FIG. 4 is a diagram showing the configuration of an information processing apparatus according to a second exemplary embodiment of the present invention together with peripheral configurations; FIG. 2 is a diagram for explaining an example of a communication quality determination policy of an information processing device; FIG. 9 is a sequence diagram representing the operation of the base station control system according to the second exemplary embodiment of the present invention; FIG. 9 is a diagram for explaining the operation of the base station control system according to the second exemplary embodiment of the present invention; FIG. FIG. 9 is a diagram for explaining the operation of the base station control system according to the second exemplary embodiment of the present invention; FIG. FIG. 9 is a diagram for explaining the operation of the base station control system according to the second exemplary embodiment of the present invention; FIG. FIG. 10 is a diagram showing the configuration of an information processing apparatus according to a third exemplary embodiment of the present invention together with peripheral configurations; FIG. 11 is a diagram for explaining the operation of the base station control system according to the third exemplary embodiment of the present invention; FIG. 11 is a diagram for explaining the operation of the base station control system according to the third exemplary embodiment of the present invention; FIG. 12 is a sequence diagram representing the operation of the base station control system according to the third exemplary embodiment of the present invention; FIG. 10 is a diagram showing the configuration of an information processing apparatus according to a fourth exemplary embodiment of the present invention together with peripheral configurations; FIG. 12 is a diagram for explaining the operation of the base station control system according to the fourth exemplary embodiment of the present invention; FIG. 1 is a block diagram showing configurations of a computer functioning as a base station control system, a base station control device, and an information processing device according to each exemplary embodiment; FIG.

[Exemplary embodiment 1]
First, exemplary embodiment 1 of the present invention will be described with reference to the drawings. This exemplary embodiment is the basis for the exemplary embodiments described later. It should be noted that the drawing reference numerals added to this overview are added to each element for convenience as an example to aid understanding, and are not intended to limit the present invention to the illustrated embodiments. Also, connection lines between blocks in drawings and the like referred to in the following description include both bidirectional and unidirectional connections. The unidirectional arrows schematically show the flow of main signals (data) and do not exclude bidirectionality. In addition, ports or interfaces may be provided at the input/output connection points of each block in the figure, but illustration of these configurations is omitted.

<Base station control system according to exemplary embodiment 1>
The base station control system 1 according to this exemplary embodiment comprises acquisition means 11, determination means 12, and indication means 13, as shown in FIG. Based on the communication service quality information provided by the first base station 20-1 to the moving object 30 passing through the first intersection, the base station control system 1 establishes a second base station at the second intersection. It is a system for determining the quality of communication service for a mobile object 30 by a station 20-2.

The type of mobile object is not limited as long as it passes through the area where the base station can provide services.

In addition, the mobile object is operated autonomously (not operated by an operator, but operated using a mobile object or a computer or AI, etc. placed on the cloud), remote control operation (a mobile object is operated via a network). It may be either an operator who does not appear in the game) or a semi-autonomous operation (which can control both autonomous operation and remote control operation).

As an example, the acquiring means 11, the determining means 12, and the instructing means 13 are configured to be able to communicate via a network. Here, the specific configuration of the network does not limit this exemplary embodiment, but as an example, wireless LAN (Local Area Network), wired LAN, WAN (Wide Area Network), public line network, mobile data A communication network or a combination of these networks can be used.

The acquisition means 11 acquires the quality information of the communication service provided to the moving object 30 passing through the first intersection from the first base station 20-1. As this quality information, indicators such as QoS (Quality of Service), which directly evaluates the quality of the network, and QoE (Quality of Experience) measured on the mobile unit 30 side can be used.

In addition to QoS and QoE, radio wave intensity, communication method (5G/4G), error rate, etc. can be used. As the quality information, the amount of data successfully communicated between the first base station 20-1 and the mobile unit 30, the progress of communication (amount of transmitted/received data/requested transmitted/received data amount), etc. may be used.

Based on the quality information of the communication service provided to the mobile body 30 passing through the first intersection, the determination means 12 is located at the destination of the mobile body 30 and is located at a second intersection different from the first intersection. determine the quality of communication service for the mobile 30; As a method for determining the quality of this communication service, the above-mentioned quality information is classified according to its value, and the level of (target) communication quality at the second intersection is determined according to the level of quality after classification. method can be adopted.

Here, the second intersection is an intersection on the road connecting to the first intersection. As an example, the (target) communication quality at the second intersection is determined so as to have a negative correlation with the quality indicated by the quality information of the communication service provided to the moving object 30 passing through the first intersection.

If the quality level of the communication service provided to the mobile unit 30 at the first intersection is lower than a predetermined level, the determination means 12 determines the second intersection so as to improve the quality of the communication service at the second intersection. Determine the quality of communication services at intersections.

For example, when the progress of communication is used as the quality information, the determining means 12 sets the communication quality level of 0 to 30% completed communication to "low" and the communication quality level of 31 to 70% completed communication to "medium". , and the communication quality level of the communication that is 71% to 100% completed is set to "high", and the level classification of the communication quality of the communication service is determined. If the communication quality level of the communication service provided to the mobile body 30 at the first intersection is "low", the determining means 12 sets the communication quality level of the communication service for the mobile body 30 at the second intersection to " High”.

Also, the destination of the moving body 30 can be specified by the lane in which the moving body 30 is located and the traveling position. For example, the determining means 12 refers to the image of a camera installed at an intersection, and in the case of a left-hand traffic road, estimates the traveling direction of the vehicle 30 based on whether the vehicle 30 is traveling on the left side of the road. can do. For example, when the vehicle 30 is traveling on the lane, the determining means 12 can estimate that the vehicle 30 will turn right, and therefore can specify the intersection at which the vehicle 30 will turn right as the second intersection.

The instruction means 13 instructs the second base station 20-2 installed at the second intersection to provide the communication service based on the communication service quality determined by the determination means 12. As for this communication service instruction, a method of directly or indirectly indicating the quality of the communication service can be adopted.

For example, the instruction means 13 instructs the second base station 20 to provide communication services including the communication quality level, the amount of communication to be provided to mobile units, the band to be provided to mobile units, the communication means to be used, and the like. Direct to -2. Further, the instruction means 13 may use the communication quality level determined by the determination means 12 to instruct provision of the communication service.

(Effect of base station control system 1)
As described above, according to the base station control system 1 according to the present exemplary embodiment, the determining means 12 determines the quality of the communication service provided to the moving object 30 passing through the first intersection based on the quality information of the communication service. , determines the quality of communication service for the mobile unit 30 at a second intersection different from the first intersection at the destination of the mobile unit 30 . For example, if the communication quality level of the communication service provided to the mobile body 30 at the first intersection is "low", the determining means 12 determines the communication quality level of the communication service for the mobile body 30 at the second intersection. to "high". As a result, when communication services are provided from the base station to the mobile unit 30, the fairness of the communication service quality in the mobile unit 30 can be improved.

<Base station controller according to exemplary embodiment 1>
FIG. 2 is a diagram showing the configuration of the base station controller according to this exemplary embodiment together with exemplary base stations and vehicles. As shown in FIG. 2, the base station control device 10 according to this exemplary embodiment has a configuration in which the acquiring means 11, the determining means 12, and the instructing means 13 are integrated into one device. The base station control device 10 can be configured by a server or the like installed on a cloud platform or the Internet. Also, the base station control device 10 may be an MEC (Multi-access Edge Computing or Mobile Edge Computing) server installed near the camera. In FIG. 2, the acquisition unit 11, the determination unit 12, and the instruction unit 13 are described as being integrated into one device, but the present invention is not limited to this. The acquiring means 11, the determining means 12, and the instructing means 13 may be arranged in a plurality of devices, or may be partially or wholly arranged on a cloud, for example. When distributed, the acquiring means 11, the determining means 12 and the indicating means 13 communicate with each other to perform their functions.

The acquisition means 11 acquires the quality information of the communication service provided to the moving object 30 passing through the first intersection from the first base station 20-1. As this quality information, in addition to QoS that directly evaluates the quality of the network, an index such as QoE measured on the mobile unit 30 side can be used.

Based on the quality information of the communication service provided to the mobile body 30 passing through the first intersection, the determination means 12 is located at the destination of the mobile body 30 and is located at a second intersection different from the first intersection. determine the quality of communication service for the mobile 30; As a method for determining the quality of this communication service, the above-mentioned quality information is classified according to its value, and the level of (target) communication quality at the second intersection is determined according to the level of quality after classification. method can be adopted.

The instruction means 13 instructs the second base station 20-2 installed at the second intersection to provide the communication service based on the communication service quality determined by the determination means 12. As for this communication service instruction, a method of directly or indirectly indicating the quality of the communication service can be adopted.

(Effect of base station control device 10)
As described above, according to the base station control device 10 according to this exemplary embodiment, for example, if the communication quality level of the communication service provided to the mobile unit 30 at the first intersection is "low", , the determining means 12 determines the communication quality level of the communication service for the mobile body 30 at the second intersection to be "high". As a result, when communication services are provided from the base station to the mobile unit 30, the fairness of the communication service quality in the mobile unit 30 can be improved.

<Method for Controlling Base Station According to Exemplary Embodiment 1>
FIG. 3 is a flow diagram showing the flow of a method for controlling a base station according to the first exemplary embodiment of the present invention. First, the acquiring means 11 acquires quality information of the communication service provided to the moving object 30 passing through the first intersection from the first base station 20-1 (step S001).

For example, as shown in FIG. 4, some base stations have an antenna 201 installed at a low position using a traffic signal 300 or the like. In the case of such a base station, the vehicle 30a in FIG. 4 can communicate with relatively high quality, but the vehicle 30b positioned behind the vehicle 30a cannot directly receive radio waves from the antenna 201, and good communication is not possible. Sometimes you can't.

Also, good communication may not be possible when the vehicle 30a and the vehicle 30b are traveling at high speed. Acquisition means 11 acquires from the first base station 20-1 the quality information of the communication service provided to the mobile bodies 30a and 30b, which may occur depending on the positions of the mobile bodies 30a and 30b, presence or absence of obstructions, speed, etc. .

Next, based on the quality information of the communication service provided to the mobile body 30 that passed through the first intersection, the determining means 12 determines a second traffic signal that is located at the destination of the mobile body 30 and that is different from the first intersection. , the quality of the communication service for the moving object 30 that has passed through the first intersection is determined (step S002).

For example, if the communication quality level of the mobile unit at the first intersection is low, the determining means 12 determines the communication quality level of the mobile unit at the second intersection to be a higher level. Here, "the communication quality level is lower (higher)" means that when the communication quality level is lower (higher) than a predetermined threshold, the communication quality level of the mobile is relatively higher than the communication quality level of other mobiles. It is used in both meanings of low (high) cases.

For example, as shown in FIG. 4, the determining means 12 lowers the communication quality level of the communication service at the second intersection with respect to the vehicle 30a for which the communication service was provided at the first intersection at the high communication quality level. to decide. Further, the determining means 12 determines to raise the communication quality level of the communication service at the second intersection for the vehicle 30b for which the communication service was not provided at the high communication quality level.

Next, the instruction means 13 instructs the second base station 20-2, which provides the communication service at the second intersection, to provide the communication service based on the quality determined by the determination means 12 (step S003). ).

For example, the instruction means 13 instructs the second base station 20-2 to allow the vehicle 30b to receive communication services at a high communication quality level. Such an instruction includes a method of instructing the base station 20-2 on the QoS of communication for the vehicle 30b. Similarly, the instruction means 13 instructs the QoS to the base station 20-2 so as to lower the communication quality level of the vehicle 30a.

(Effect of base station control method)
As described above, according to the base station control method according to this exemplary embodiment, for example, if the communication quality level of the communication service provided to the mobile unit 30 at the first intersection is "low", , the determining means 12 determines the communication quality level of the communication service for the mobile body 30 at the second intersection to be "high". As a result, when communication services are provided from the base station to the mobile unit 30, the fairness of the communication service quality in the mobile unit 30 can be improved.

Further, according to this exemplary embodiment, for example, when a vehicle 30 traveling on a road communicates with a base station 20-1 around the road, it is affected by obstacles around the road and vehicles traveling in front and behind the road. communication may not be possible. Also, when the vehicle 30 traveling on the road is traveling at high speed, it is expected that the time spent in the service area of the base station 20-1 will be short and necessary communication will not be possible. Even in these cases, the determining means 12 raises the communication quality level of the mobile unit 30 when communicating with the next base station 20-2 so that the vehicle 30 can perform the expected communication. Become.

[Exemplary embodiment 2]
A second exemplary embodiment of the invention will now be described in detail with reference to the drawings. Components having the same functions as the components described in the exemplary embodiment 1 are denoted by the same reference numerals, and their descriptions are omitted as appropriate.

FIG. 5 is a diagram showing the configuration of a base station control system according to the second exemplary embodiment of the present invention together with exemplary base stations and vehicles. The base station control system according to exemplary Embodiment 2 includes an information processing device 110, MECs 100-1 and 100-2, a camera 140, and base stations 200-1 and 200-2.

Base stations 200-1 and 200-2, MECs 100-1 and 100-2, and a camera 140 are installed at each of two intersections on the same road. Although two intersections are adjacent in FIG. 5, the two intersections are not necessarily adjacent, and one or more intersections may exist between the two intersections. Although there are no particular restrictions on the positional relationship between the two intersections, the second intersection is an intersection on the road connected to the first intersection from the viewpoint that it must be the destination of the vehicle 30b. is preferred.

The base stations 200-1 and 200-2 are connected to the core network of a telecommunications carrier (not shown), and are located within the service provision area SA of the base stations 200-1 and 200-2 installed around intersections. A communication service is provided to stations (including the on-vehicle terminal of the vehicle 30b). For example, the base stations 200-1 and 200-2 may be base stations for a fifth generation mobile communication system (5G) installed by a telecommunications carrier, or may be called local 5G. It may be a base station of a network operated by Also, the service area SA may be composed of a plurality of cells.

The MEC 100-1 transmits the information received from the base station 200-1 and the image obtained from the camera 140 to the information processing device 110. Similarly, MEC 100 - 2 transmits information received from base station 200 - 2 and images obtained from camera 140 to information processing device 110 .

A camera 140 is installed near a traffic light at an intersection and photographs vehicles passing through the intersection. Installing the camera 140 near the traffic light means, for example, that the camera 140 may be installed on the signal pole of the traffic signal at the intersection, or may be installed on the side or roof of the building from which the intersection can be overlooked. In this exemplary embodiment, the information processing device 110 uses the image obtained by the camera 140 to identify the traveling direction of the vehicle 30b. Although FIG. 5 shows an example in which one camera is arranged at each intersection, the number of cameras is not limited. For example, one or more cameras may be installed on each signal pole of a traffic light at an intersection. Also, a sensor or the like other than the camera 140 may be used as means for grasping the traveling direction of the vehicle.

In this exemplary embodiment, the MECs 100-1 and 100-2 transmit the images obtained from the cameras 140 to the information processing device 110, but the MECs 100-1 and 100-2 acquires an image from the camera 140 installed in the 140, identifies the destination of the moving object that has passed through the first intersection based on the image acquired from the camera 140, and sends the information processing device (base station control device) 110 information on the destination of the moving body 30b may be provided. In this case, the MECs 100-1 and 100-2 transmit information about the traveling direction (destination) of the vehicle 30b to the information processing device 110 instead of the image obtained from the camera 140. FIG.

FIG. 6 is a diagram showing the configuration of the information processing device 110 according to the second exemplary embodiment of the present invention together with its peripheral configuration. Information processing device 110 is connected to N MECs 100-1 to 100-N, and provides communication services to vehicle 30b via MECs 100-1 and 100-N to base stations 200-1 to 200-N. Indicate the communication quality when Therefore, the information processing device 110 corresponds to the base station control device 10 described above.

As shown in FIG. 6, the information processing device 110 includes an acquisition means 111, a determination means 112, an instruction means 113, a vehicle DB 114, and a base station DB 115.

The vehicle DB 114 is a database that stores information that associates the ID of an in-vehicle terminal installed in the vehicle (SIM information such as IMSI (International Mobile Subscriber Identity), etc.) with the license plate information of the vehicle. The vehicle DB 114 is referred to when specifying a vehicle (in-vehicle terminal) to be controlled from license plate information of the vehicle.

The base station DB 115 is a database that stores the positional relationship between the base stations 200-1 to 200-N placed at intersections under the control of the information processing device 110 and the intersections. The base station DB 115 stores, for example, an entry that associates an intersection with information on a base station ahead in the traveling direction from the intersection. It is referred to when determining the base station to be indicated from the direction. The positional relationship between base stations 200-1 to 200-N and intersections may be described by coordinate information such as latitude and longitude.

The acquisition means 111 further acquires the image of the camera 140 installed at the first intersection. Specifically, when the vehicle stops at or enters the intersection, the acquiring means 111 obtains an image of the vehicle 30b passing through the intersection from the MEC 100-1, and an image of the vehicle 30b from the base station 200-1. quality information of the provided communication service. The acquisition unit 111 may acquire the image and the quality information of the vehicle 30b at the timing when the vehicle enters within several meters from the intersection.

When the information processing device 110 identifies the vehicle 30b from the image captured by the camera 140, for example, it can be done by recognizing the license plate information of the vehicle 30b in the image captured by the camera 140. . Then, the information processing device 110 refers to the vehicle DB 114 to identify the vehicle (in-vehicle terminal) corresponding to the license plate information.

In this exemplary embodiment, the information processing device 110 includes the vehicle DB 114 and refers to the vehicle DB 114 to identify the vehicle. It is also possible to request collation between the ID of the customer and the license plate information.

Also, if the MEC 100-1 side identifies the vehicle and identifies its destination (traveling direction), the vehicle DB 114 and the base station DB 115 may be arranged on the MEC 100-1 side. In this case, the MEC 100-1 identifies the vehicle and its destination from the license plate information of the vehicle 30b, and transmits the vehicle information and destination base station information to the information processing device 110. FIG.

The determining means 112 identifies the second intersection based on the image of the moving object shown in the image. Specifically, the determining means 112 includes traveling direction identifying means 1121 , base station selecting means 1122 , and instruction quality determining means 1123 . The traveling direction specifying means 1121 specifies the traveling direction of the vehicle 30b based on the image obtained from the camera 140. FIG. Furthermore, the base station selection means 1122 refers to the base station DB 115 and selects the base station corresponding to the second intersection to which the instruction is to be sent based on the traveling direction of the vehicle 30b.

In addition, the instruction quality determination means 1123 determines the communication service to be provided to the vehicle 30b at the next intersection (second intersection) based on the quality information of the communication service provided to the vehicle 30b by the base station 200-1. determine the quality of

FIG. 7 is a diagram for explaining an example of a communication quality determination policy that the determining means 112 refers to when determining the quality of the communication service provided to the vehicle 30b. In FIG. 7, when the communication quality level is low at the first intersection, the determining means 112 determines the quality of communication service at the second intersection (intersection where the vehicle 30b is traveling) to be "high".

Also, when the communication quality level is high at the first intersection, the determining means 112 determines the quality of the communication service at the second intersection (the intersection where the vehicle 30b is traveling) to be "low". In addition, when the communication quality is "medium" at the first intersection, the determining means 112 determines the quality of the communication service at the second intersection (intersection where the vehicle 30b is traveling) to be "medium".

The instruction means 113 transmits the quality determined by the determination means 112 to the vehicle 30b via the MEC 100-2 to the base station (for example, 200-2 in FIG. 5) determined by the determination means 112 as the transmission destination of the instruction. to provide telecommunications services in

Next, the operation of this exemplary embodiment will be described in detail with reference to the drawings. FIG. 8 is a sequence diagram for explaining the operation of the base station control system according to the second exemplary embodiment of the present invention. As shown in FIG. 8, the information processing device 110 acquires from the MEC 100-1 an image of the vehicle 30b passing through the intersection and quality information of the communication service provided to the vehicle 30b by the base station 200-1. (Step S101).

Next, the information processing device 110 identifies the vehicle 30b from the image of the vehicle 30b that has passed through the intersection, and further identifies its destination (step S102). For example, the information processing device 110 can grasp the lane in which the vehicle 30b is traveling and its movement from the image of the vehicle 30b. Then, the information processing device 110 identifies the destination of the vehicle from the lane in which the vehicle 30b is located at the intersection and the movement of the vehicle, refers to the base station DB 115, and transmits the instruction to the base station corresponding to the second intersection. to select. Here, it is assumed that the base station 200-2 is selected because it is determined that the vehicle 30b will go straight from the right to the left in FIG. 5 at the intersection with the base station 200-1 as shown in FIG.

Next, information processing device 110 determines the quality of the communication service provided by base station 200-2 when vehicle 30b passes through the intersection based on the quality information of the communication service provided by base station 200-1 to vehicle 30b. is determined (step S103).

Next, the information processing device 110 instructs the base station 200-2 via the MEC 100-2 on the quality of the communication service to be provided when the vehicle 30b passes through the intersection (step S104).

The MEC 100-2 transfers the instruction received from the information processing device 110 to the base station 200-2 (step S105). Base station 200-2 provides service to vehicle 30b according to the instruction received from information processing device 110. FIG.

Next, the operation of the base station control system according to this exemplary embodiment will be described by showing a specific example. For example, as shown in FIG. 9, it is assumed that vehicles 30a and 30b have entered the right intersection (first intersection) and are receiving communication services from the base station 200-1. At this time, for example, it is assumed that the vehicle 30a can directly receive radio waves from the antenna of the base station 200-1 and receive high-quality communication service. On the other hand, since vehicle 30a exists between vehicle 30b and the antenna of base station 200-1, it is assumed that the quality of communication service is low.

In this case, based on the quality information of the communication service provided to the vehicle 30b by the base station 200-1, the determining means 112 causes the base station 200-2 in the destination of the vehicle 30b to determine when the vehicle 30b passes through the intersection. Decide to improve the quality of the communication services it provides. In addition, based on the quality information of the communication service provided to the vehicle 30a by the base station 200-1, the determination means 112 provides quality information to the vehicle 30a when the vehicle 30a passes through the intersection at the base station 200-2 ahead of the vehicle 30a. Decide to reduce the quality of communication services provided by

After that, as shown in FIG. 10, when vehicles 30a and 30b enter the left intersection (second intersection), the base station 200-2 provides communication services according to instructions from the instruction means 113. Specifically, the base station 200-2 provides high-quality communication services to the vehicle 30b. Also, the base station 200-2 provides low-quality communication services to the vehicle 30a. By doing so, it is possible to improve the fairness of the quality of the communication service while the vehicles 30a and 30b pass through the two intersections.

For example, as shown in FIG. 11, while the vehicle 30b is heading from the intersection on the right side (first intersection) to the intersection on the left side (second intersection), the vehicle 30a may leave and another vehicle 30c may cut in. is also conceivable. In that case, similarly, the information processing device 110 may provide a high-quality communication service to the vehicle 30b. For the vehicle 30c, the information processing device 110 may start collecting communication service quality information at the left intersection (second intersection).

(Effects of the base station control system according to exemplary embodiment 2)
As explained above, according to the base station control system according to the present exemplary embodiment, the determining means 112 identifies the second intersection based on the image of the moving object shown in the image. Therefore, the instruction means 113 can easily identify the base station corresponding to the second intersection and instruct the provision of communication service based on the quality determined by the determination means 112 .

[Third Exemplary Embodiment]
A third exemplary embodiment of the invention will now be described in detail with reference to the drawings. Components having the same functions as those described in exemplary embodiments 1 and 2 are denoted by the same reference numerals, and descriptions thereof are omitted as appropriate.

FIG. 12 is a diagram showing the configuration of a base station control system according to the third exemplary embodiment of the present invention together with exemplary base stations and vehicles. The base station control system according to exemplary Embodiment 3 includes an information processing device 110a, MECs 100-1 to 100-N, a camera 140, and base stations 200-1 to 200-N.

In this exemplary embodiment, the information processing device 110a groups a plurality of vehicles to ensure the fairness of communication services within the group. The difference in configuration from the base station control system according to the second exemplary embodiment shown in FIG. It is a point to do. Since other configurations are the same as those of the second exemplary embodiment, description thereof will be omitted, and the differences will be mainly described below.

The acquisition means 111a acquires from the MEC 100-1 the image of the vehicle group stopped at the intersection and the quality information of the communication service provided to the vehicle group by the base station 200-1.

The determination means 112a includes group setting means 1120a, traveling direction identification means 1121a, base station selection means 1122a, and instruction quality determination means 1123a. The group setting means 1120a of the determination means 112a selects and groups a plurality of moving bodies traveling in the same direction as the moving body at the first intersection.

Specifically, the group setting means 1120a extracts vehicles from the image received from the MEC 100-1, groups the extracted vehicles, and sets groups (train groups). In other words, the determining means 112a sets a plurality of vehicles stopped at the intersection as one group.

The traveling direction specifying means 1121a specifies the traveling direction (destination) of this (train group). The base station selection means 1122a refers to the base station DB 115 and selects a base station to send an instruction to. The identification of these vehicles and the identification of base stations to which they move are similar to the method described in the second exemplary embodiment.

The indicated quality determining means 1123a of the determining means 112a determines the second base station so that the sum of the quality levels of the communication services received by the individual mobiles belonging to the group from the first base station and the second base station is leveled. Determine the quality of communication service for each mobile at the station.

Specifically, instruction quality determination means 1123a determines the next intersection (the second intersections), determine the quality of the communication service to be provided to each vehicle belonging to the above group (train group). The indicated quality determining means 1123a determines so that the sum (sum) of the communication quality levels of the communication services provided to the individual vehicles in the group at the first and second intersections is as equal as possible.

The communication quality level can, for example, express the quality of the communication service provided to each vehicle in order from the highest quality to the highest. For example, when five quality levels are set with Lv5 as the highest value and Lv1 as the lowest value, as shown in the upper part of FIG. It is assumed that the quality level of the communication service received by each vehicle varies as shown below each vehicle in FIG.

In this case, the indicated quality determination means 1123a determines the quality level of the communication service provided at the second intersection (left side of FIG. 13), as shown in the lower part of FIG. In the example of FIG. 13, at the first and second intersections, the sum of the communication service quality levels of the individual vehicles belonging to the group is Lv=8. Therefore, vehicles belonging to the group can equally receive communication services.

As shown in FIG. 14, it is also assumed that the vehicle group changes while the vehicle group is heading from the intersection on the right (first intersection) to the intersection on the left (second intersection). Even in that case, the communication quality level may be set so as to maintain fairness in communication service quality among the vehicles remaining in the group. Also, at this second intersection, the group setting means 1120a can set a new group and start collecting communication service quality information.

Next, the operation of the base station control system according to this exemplary embodiment will be described in detail with reference to the drawings. FIG. 15 is a sequence diagram representing operations of the base station control system according to the third exemplary embodiment of the present invention. As shown in FIG. 15, the acquisition means 111a of the information processing device 110a obtains an image of a group of vehicles stopped at an intersection from the MEC 100-1 and an image of the communication service provided to the group of vehicles by the base station 200-1. quality information is acquired (step S201).

Next, the group setting means 1120a of the information processing device 110a extracts vehicles from the image received from the MEC 100-1, groups the extracted vehicles, and sets a group (train group) (step S202). Next, the traveling direction specifying means 1121a of the information processing device 110a specifies the traveling direction (destination) of this (train group) (step S203). Then, the base station selection means 1122a of the information processing device 110a refers to the base station DB 115 and selects the base station to which the instruction is to be sent.

Next, the instruction quality determination means 1123a of the information processing device 110a determines the group (vehicle group) based on the communication service quality information provided by the base station 200-1 to the vehicles belonging to the group (vehicle group). column group) to be provided to each vehicle (step S204).

Next, the instruction means 113 of the information processing device 110a provides the base station 200-2 via the MEC 100-2 with the quality of the communication service to be provided when each vehicle belonging to the group (traffic group) passes through the intersection. (step S205).

The MEC 100-2 transfers the instruction received from the information processing device 110a to the base station 200-2 (step S206). The base station 200-2 provides services to individual vehicles belonging to the group (convoy group) according to the instructions received from the information processing device 110a.

(Effect of base station control system according to exemplary embodiment 3)
As described above, according to the base station control system according to the present exemplary embodiment, the group setting means 1120a groups the lines of traffic that are always caused by waiting for traffic lights at intersections, and the instruction quality determining means 1123a Smoothing out differences in the quality of telecommunications services that can be enjoyed due to location within a country. Therefore, when communication services are provided from the base station to mobile units, the fairness of the quality of communication services in the mobile units can be enhanced.

[Exemplary embodiment 4]
A fourth exemplary embodiment of the invention will now be described in detail with reference to the drawings. Components having the same functions as those described in the exemplary embodiments 1 to 3 are denoted by the same reference numerals, and their descriptions are omitted as appropriate.

FIG. 16 is a diagram showing the configuration of a base station control system according to the fourth exemplary embodiment of the present invention. The base station control system according to exemplary Embodiment 4 includes an information processing device 110b, MECs 100-1 to 100-N, a camera 140, and base stations 200-1 to 200-N.

In this exemplary embodiment, the information processing device 110b is added with a group maintenance determination function based on the light color of the traffic signal. The structural difference from the information processing apparatus 110a according to the third exemplary embodiment shown in FIG. The point is that a function for judging the maintenance of groups based on the data has been added.

The group setting means 1120b of the determination means 112b determines whether the group is maintained at the second intersection based on the congestion state of the road between the first intersection and the second intersection and the signal control information of the traffic signal at the second intersection. determine whether

Specifically, the group setting means 1120b, from the image of the second intersection captured by the camera 140 acquired via the MEC 100-2, sets the traffic signal 300 at the time when the convoy group approaches the second intersection. Predict the lighting condition of the train and set the convoy group. For example, as shown in the lower part of FIG. 17, when the traffic light changes from green to red when the leading vehicle of the convoy group approaches the second intersection, the leading two vehicles do not stop at the second intersection. may pass through. In other words, the convoy group may not be maintained because the leading two vehicles are out of the convoy group. Note that the upper part of FIG. 17 indicates that the communication quality level "4" is set for all vehicles at the first intersection.

The determining means 112b according to this exemplary embodiment can additionally perform the following two processes compared to the determining means 112a according to the third exemplary embodiment shown in FIG.

(1) First, when determining that the group is not maintained at the second intersection, the determination means 112b stops leveling the quality level of the communication service within the group at the second intersection, and the communication service for each vehicle is stopped. change the communication quality level of

Specifically, the determining means 112b performs processing to raise the communication quality level of the communication service provided at the second intersection for the two leading vehicles that do not stop at the second intersection and pass through. As a result, the first two vehicles can preferentially receive communication services at the second intersection.

(2) Further, the determining means 112b determines the communication quality level of the communication service provided at the second intersection for the remaining three vehicles stopping at the second intersection. Here, the communication quality level set for the vehicle stopping at the second intersection should be lower than the communication quality level set for the first two vehicles that pass through the second intersection without stopping. is preferred. By doing so, it is possible to increase the possibility that the first two vehicles can preferentially receive the communication service at the second intersection. Even if the communication quality level of the remaining three vehicles is low, the remaining three vehicles stop at the second intersection, so communication can be completed during that time.

Note that, in the exemplary embodiment 4, the information processing device 110b grasps the lighting state of the traffic signal 300 from the camera image, but the method of grasping the lighting state of the traffic signal 300 is not limited to this. . For example, the information processing device 110b receives signal control information from a signal control device that controls a traffic signal, and based on the value, can estimate the lighting state of the traffic signal. In addition, if there is a control center, etc. that sets control information in the signal control device, a method of grasping the lighting state of the signal at the intersection by acquiring the signal control information of the traffic signal at a specific intersection from the control center, etc. is also adopted. It is possible.

Further, in the exemplary embodiment 4 described above, the information processing device 110b determines whether the group is maintained at the second intersection based on the lighting state of the traffic signal 300. The determination may be made by taking into consideration the congestion status of the road between the intersection and the second intersection.

Specifically, the information processing device 110b grasps the congestion status of the road between the first intersection and the second intersection based on the image of the camera 140 and the information provided from the traffic control center or the like. Then, for example, if the convoy group is no longer maintained due to road congestion or if the significance of leveling is lost, the quality level of the communication service within the group at the second intersection should be leveled. You can stop.

(Effect of base station control system according to exemplary embodiment 4)
As described above, according to the base station control system according to the present exemplary embodiment, the determination unit 112b also uses the lighting state of the traffic signal at the intersection to determine the communication quality level of the communication service at the second intersection. Set to a more appropriate value. Particularly in this exemplary embodiment, as described above, the communication quality levels of communication services between vehicles belonging to a group can be leveled. Therefore, when distributing data to convoys (including self-driving cars) that run in platoons, the base station control system according to this exemplary embodiment can be used to suitably distribute data. For example, the communication quality can be controlled so that all vehicles running in a row can receive the data that is distributed.

Although the exemplary embodiments of the present invention have been described above, the present invention is not limited to the exemplary embodiments described above, and can be further modified without departing from the basic technical idea of the present invention. Transformations, replacements, and adjustments can be added. For example, the system configuration, the configuration of each element, and the form of expression such as data shown in each drawing are examples for helping understanding of the present invention, and are not limited to the configuration shown in these drawings. For example, in the first to fourth exemplary embodiments described above, the cameras 140 are installed at intersections, but the arrangement of the cameras 140 is not limited to this. For example, as the camera 140, a camera installed on the street or a camera installed for crime prevention can be used.

Further, in each of the exemplary embodiments described above, the communication quality of the communication service at the second intersection is determined based on the quality information of the communication service at the first intersection. The communication quality of the determined communication service may be changed in consideration of the importance of the vehicle, the attributes of the vehicle, and the like. For example, for self-driving cars and emergency vehicles, the lower limit of the provided quality may be set so that a certain level is maintained.

In addition, although no particular distinction was made in each of the exemplary embodiments above, it is also possible to control the quality of communication services by setting target values for priority control and bandwidth control individually. For example, for communication that has a high priority but does not involve a large amount of data, the priority can be given a high priority while the band allocation can be reduced. In addition, for communication with a large amount of data, although the priority is not high, the priority can be set to low priority, and the band allocation can be increased.

Further, in the exemplary embodiments described above, the information processing devices 110, 110a and 110b are provided independently of the MECs 100-1 and 100-2 and the base stations 200-1 and 200-2. However, it is also possible to adopt a form in which the information processing devices 110, 110a, 110b and the MEC or base station are integrated.

[Example of realization by software]
Some or all of the functions of the base station control system 1, the base station control device 10, the information processing devices 110, 110a, and 110b may be realized by hardware such as integrated circuits (IC chips), or by software. You may

In the latter case, the base station control system 1, the base station control device 10, the information processing devices 110, 110a, and 110b are implemented by, for example, a computer that executes program instructions that are software that implements each function. An example of such a computer (hereinafter referred to as computer C) is shown in FIG. Computer C comprises at least one processor C1 and at least one memory C2. A program P for operating the computer C as the base station control system 1, the base station control device 10, the information processing devices 110, 110a and 110b is recorded in the memory C2. In the computer C, the processor C1 reads the program P from the memory C2 and executes it to implement the functions of the base station control system 1, the base station control device 10, and the information processing devices 110, 110a and 110b.

As the processor C1, for example, CPU (Central Processing Unit), GPU (Graphic Processing Unit), DSP (Digital Signal Processor), MPU (Micro Processing Unit), FPU (Floating point number Processing Unit), PPU (Physics Processing Unit) , a microcontroller, or a combination thereof. As the memory C2, for example, a flash memory, HDD (Hard Disk Drive), SSD (Solid State Drive), or a combination thereof can be used.

Note that the computer C may further include a RAM (Random Access Memory) for expanding the program P during execution and temporarily storing various data. Computer C may further include a communication interface for sending and receiving data to and from other devices. Computer C may further include an input/output interface for connecting input/output devices such as a keyboard, mouse, display, and printer.

In addition, the program P can be recorded on a non-temporary tangible recording medium M that is readable by the computer C. As such a recording medium M, for example, a tape, disk, card, semiconductor memory, programmable logic circuit, or the like can be used. The computer C can acquire the program P via such a recording medium M. Also, the program P can be transmitted via a transmission medium. As such a transmission medium, for example, a communication network or broadcast waves can be used. Computer C can also obtain program P via such a transmission medium.

[Appendix 1]
The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. For example, embodiments obtained by appropriately combining the technical means disclosed in the embodiments described above are also included in the technical scope of the present invention.

[Appendix 2]
Some or all of the above-described embodiments may also be described as follows. However, the present invention is not limited to the embodiments described below.

(Appendix 1)
Acquisition means for acquiring quality information of a communication service provided from a first base station to a moving object passing through a first intersection;
determining means for determining the quality of communication service for the mobile object at a second intersection different from the first intersection, located at the destination of the mobile object, based on the quality information;
and an instruction means for instructing a second base station providing communication service at the second intersection to provide communication service based on the quality determined by the determination means.

　Base station control system.

According to the above configuration, for example, if the communication quality level of the communication service provided to the mobile object at the first intersection is "low", the determining means determines that the communication service for the mobile object at the second intersection is communication quality level to "high". As a result, when the base station provides communication services to mobile units, it is possible to improve the fairness of the quality of communication services in the mobile units.

(Appendix 2)
The base station control system according to appendix 1, wherein the second intersection is an intersection on a road connecting to the first intersection.

(Appendix 3)
When the quality level of the communication service provided to the mobile object at the first intersection is low, the determination means increases the quality of the communication service at the second intersection. 3. A base station control system according to appendix 1 or 2, for determining the quality of communication service.

According to the above configuration, when communication services are provided from the base station to mobile units, it is possible to improve the fairness of the quality of communication services in mobile units.

(Appendix 4)
The acquisition means further acquires an image of a camera installed at the first intersection,
4. The base station control system according to any one of appendices 1 to 3, wherein said determining means specifies said second intersection based on an image of a moving body shown in said image.

According to the above configuration, the instruction means can easily identify the base station corresponding to the second intersection, and can instruct provision of communication services based on the quality determined by the determination means.

(Appendix 5)
The determining means is
setting a group by selecting a plurality of moving bodies traveling in the same direction as the moving body at the first intersection;
communication of each mobile at said second base station so that the sum of quality levels of communication services received from said first base station and said second base station by each mobile belonging to said group is leveled determine the quality of our services,
5. The base station control system according to any one of appendices 1 to 4.

According to the above configuration, when communication services are provided from the base station to mobile units, it is possible to improve the fairness of the quality of communication services in mobile units.

(Appendix 6)
The determining means is
Determining whether the group is maintained at the second intersection based on the congestion state of the road between the first intersection and the second intersection and the signal control information of the traffic signal at the second intersection. ,
According to appendix 5, when the group setting means determines that the group is not maintained at the second intersection, the leveling of the quality level of the communication service within the group at the second intersection is stopped. Base station control system.

(Appendix 7)
Acquisition means for acquiring quality information of a communication service provided from a first base station to a moving object passing through a first intersection;
determining means for determining the quality of communication service for the mobile object at a second intersection different from the first intersection, located at the destination of the mobile object, based on the quality information;
and an instruction means for instructing a second base station providing communication service at the second intersection to provide communication service based on the quality determined by the determination means.

　Base station controller.

According to the above configuration, for example, if the communication quality level of the communication service provided to the mobile object at the first intersection is "low", the determining means determines that the communication service for the mobile object at the second intersection is communication quality level to "high". As a result, when the base station provides communication services to mobile units, it is possible to improve the fairness of the quality of communication services in the mobile units.

(Appendix 8)
The base station control device according to appendix 7, wherein the second intersection is an intersection on a road connected to the first intersection.

(Appendix 9)
When the quality level of the communication service provided to the mobile object at the first intersection is low, the determination means increases the quality of the communication service at the second intersection. 9. The base station controller according to appendix 7 or 8, which determines the quality of communication service.

According to the above configuration, when communication services are provided from the base station to mobile units, it is possible to improve the fairness of the quality of communication services in mobile units.

(Appendix 10)
The acquisition means further acquires an image of a camera installed at the first intersection,
10. The base station control device according to any one of appendices 7 to 9, wherein said determining means specifies said second intersection based on an image of a moving body shown in said image.

According to the above configuration, the instruction means can easily identify the base station corresponding to the second intersection, and can instruct provision of communication services based on the quality determined by the determination means.

(Appendix 11)
The determining means is
setting a group by selecting a plurality of moving bodies traveling in the same direction as the moving body at the first intersection;
communication of each mobile at said second base station so that the sum of quality levels of communication services received from said first base station and said second base station by each mobile belonging to said group is leveled 11. The base station controller according to any one of appendices 7 to 10, which determines quality of service.

According to the above configuration, when communication services are provided from the base station to mobile units, it is possible to improve the fairness of the quality of communication services in mobile units.

(Appendix 12)
The determining means is
Determining whether the group is maintained at the second intersection based on the congestion state of the road between the first intersection and the second intersection and the signal control information of the traffic signal at the second intersection. ,
12. The base station control device according to appendix 11, wherein when it is determined that the group is not maintained at the second intersection, leveling of the communication service quality level within the group at the second intersection is stopped.

(Appendix 13)
Acquisition means for acquiring quality information of a communication service provided from a first base station to a moving object passing through a first intersection;
determining means for determining the quality of communication service for the mobile object at a second intersection different from the first intersection, located at the destination of the mobile object, based on the quality information;
and an instruction means for instructing a second base station providing communication service at the second intersection to provide communication service based on the quality determined by the determination means. ,
Acquiring an image from a camera installed at the first intersection;
A server that identifies a destination of a mobile object passing through the first intersection based on the image acquired from the camera, and provides information on the destination of the mobile object to the base station controller.

According to the above configuration, for example, if the communication quality level of the communication service provided to the mobile object at the first intersection is "low", the determining means determines that the communication service for the mobile object at the second intersection is communication quality level to "high". As a result, when the base station provides communication services to mobile units, it is possible to improve the fairness of the quality of communication services in the mobile units.

(Appendix 14)
Obtaining from the first base station quality information of the communication service provided to the moving object passing through the first intersection,
determining the quality of communication service for the mobile at a second intersection different from the first intersection, located at the destination of the mobile, based on the quality information;
instructing a second base station that provides communication services at the second intersection to provide communication services based on the determined quality;
Base station control method.

According to the above configuration, for example, if the communication quality level of the communication service provided to the mobile body at the first intersection is "low", the communication quality level of the communication service for the mobile body at the second intersection to "high". As a result, when the base station provides communication services to mobile units, it is possible to improve the fairness of the quality of communication services in the mobile units.

(Appendix 15)
15. The base station control method according to appendix 14, wherein the second intersection is an intersection on a road connecting to the first intersection.

(Appendix 16)
In the determining process,
If the quality level of the communication service provided to the mobile object at the first intersection is low, the quality of the communication service at the second intersection is improved so as to improve the quality of the communication service at the second intersection. 16. The base station control method according to appendix 14 or 15, wherein the base station is determined.

According to the above configuration, when communication services are provided from the base station to mobile units, it is possible to improve the fairness of the quality of communication services in mobile units.

(Appendix 17)
In the acquisition process,
Further acquire an image of a camera installed at the first intersection,
In the determining process,
17. The method of controlling a base station according to any one of attachments 14 to 16, wherein the second intersection is specified based on an image of a mobile object appearing in the image.

According to the above configuration, it is possible to easily identify the base station corresponding to the second intersection and instruct the provision of communication services based on the determined quality.

(Appendix 18)
In the determining process,
setting a group by selecting a plurality of moving bodies traveling in the same direction as the moving body at the first intersection;
communication of each mobile at said second base station so that the sum of quality levels of communication services received from said first base station and said second base station by each mobile belonging to said group is leveled 18. The base station control method according to any one of appendices 14 to 17, wherein quality of service is determined.

According to the above configuration, when communication services are provided from the base station to mobile units, it is possible to improve the fairness of the quality of communication services in mobile units.

(Appendix 19)
In the determining process,
Determining whether the group is maintained at the second intersection based on the congestion state of the road between the first intersection and the second intersection and the signal control information of the traffic signal at the second intersection. ,
19. The base station control method according to appendix 18, wherein when it is determined that the group is not maintained at the second intersection, leveling of the quality level of communication services within the group at the second intersection is stopped.

(Appendix 20)
at least one processor, wherein the processor acquires quality information of a communication service provided from a first base station to a mobile object passing through a first intersection;
a process of determining the quality of communication service for the mobile object at a second intersection different from the first intersection, located at the destination of the mobile object, based on the quality information;
a process of instructing a second base station that provides communication services at the second intersection to provide communication services based on the determined quality;
A base station control system that runs

The base station control system may further comprise a memory, and this memory contains a program for causing the processor to execute the acquiring process, the determining process, and the instructing process. may be stored. Also, this program may be recorded in a computer-readable non-temporary tangible recording medium.

(Appendix 21)
at least one processor, wherein the processor acquires quality information of a communication service provided from a first base station to a mobile object passing through a first intersection;
a process of determining the quality of communication service for the mobile object at a second intersection different from the first intersection, located at the destination of the mobile object, based on the quality information;
a process of instructing a second base station that provides communication services at the second intersection to provide communication services based on the determined quality;
A base station controller that executes

The base station control apparatus may further comprise a memory, and this memory stores a program for causing the processor to execute the acquiring process, the determining process, and the instructing process. may be stored. Also, this program may be recorded in a computer-readable non-temporary tangible recording medium.

1 Base Station Control System 10 Base Station Control Device 11 Acquisition Means 12 Determination Means 13 Instruction Means 20-1 First Base Station 20-2 Second Base Station 30 Mobile Objects 30a to 30c Vehicles 100-1 to 100-N MEC
110, 110a, 110b Information processing device 111, 111a Acquisition means 112, 112a, 112b Determination means 113 Instruction means 114 Vehicle DB
115 base station database
140 Camera 200-1 to 200-N Base Station 201 Antenna 300 Traffic Signal 1120a, 1120b Group Setting Means 1121, 1121a Traveling Direction Identifying Means 1122, 1122a Base Station Selecting Means 1123, 1123a Instruction Quality Determining Means SA Service Providing Area

Claims (19)

1. Acquisition means for acquiring quality information of a communication service provided from a first base station to a moving object passing through a first intersection;
   determining means for determining the quality of communication service for the mobile object at a second intersection different from the first intersection, located at the destination of the mobile object, based on the quality information;
   an instruction means for instructing a second base station providing communication service at the second intersection to provide communication service based on the quality determined by the determination means.
2. The base station control system according to claim 1, wherein said second intersection is an intersection on a road connected to said first intersection.
3. When the quality level of the communication service provided to the mobile object at the first intersection is low, the determination means increases the quality of the communication service at the second intersection. 3. A base station control system according to claim 1 or 2, which determines the quality of communication services.
4. The acquisition means further acquires an image of a camera installed at the first intersection,
   4. The base station control system according to any one of claims 1 to 3, wherein said determining means specifies said second intersection based on an image of a moving object appearing in said image.
5. The determining means is
   setting a group by selecting a plurality of moving bodies traveling in the same direction as the moving body at the first intersection;
   communication of each mobile at said second base station so that the sum of quality levels of communication services received from said first base station and said second base station by each mobile belonging to said group is leveled 5. A base station control system according to any one of claims 1 to 4, for determining quality of service.
6. The determining means is
   Determining whether the group is maintained at the second intersection based on the congestion state of the road between the first intersection and the second intersection and the signal control information of the traffic signal at the second intersection. ,
   6. The base station control system according to claim 5, wherein when it is determined that said group is not maintained at said second intersection, leveling of quality levels of communication services within said group at said second intersection is stopped.
7. Acquisition means for acquiring quality information of a communication service provided from a first base station to a moving object passing through a first intersection;
   determining means for determining the quality of communication service for the mobile object at a second intersection different from the first intersection, located at the destination of the mobile object, based on the quality information;
   an instruction means for instructing a second base station that provides communication service at the second intersection to provide communication service based on the quality determined by the determination means.
8. The base station controller according to claim 7, wherein said second intersection is an intersection on a road connected to said first intersection.
9. When the quality level of the communication service provided to the mobile object at the first intersection is low, the determination means increases the quality of the communication service at the second intersection. 9. A base station controller according to claim 7 or 8, which determines the quality of communication service.
10. The acquisition means further acquires an image of a camera installed at the first intersection,
    10. The base station control device according to any one of claims 7 to 9, wherein said determining means specifies said second intersection based on an image of a moving object appearing in said image.
11. The determining means is
    setting a group by selecting a plurality of moving bodies traveling in the same direction as the moving body at the first intersection;
    communication of each mobile at said second base station so that the sum of quality levels of communication services received from said first base station and said second base station by each mobile belonging to said group is leveled 11. The base station controller according to any one of claims 7 to 10, which determines quality of service.
12. The determining means is
    Determining whether the group is maintained at the second intersection based on the congestion state of the road between the first intersection and the second intersection and the signal control information of the traffic signal at the second intersection. ,
    12. The base station controller according to claim 11, wherein when it is determined that said group is not maintained at said second intersection, leveling of quality levels of communication services within said group at said second intersection is stopped.
13. Acquisition means for acquiring quality information of a communication service provided from a first base station to a moving object passing through a first intersection;
    determining means for determining the quality of communication service for the mobile object at a second intersection different from the first intersection, located at the destination of the mobile object, based on the quality information;
    and an instruction means for instructing a second base station providing communication service at the second intersection to provide communication service based on the quality determined by the determination means. ,
    Acquiring an image from a camera installed at the first intersection;
    A server that identifies a destination of a mobile object passing through the first intersection based on the image acquired from the camera, and provides information on the destination of the mobile object to the base station controller.
14. Obtaining from the first base station quality information of the communication service provided to the moving object passing through the first intersection,
    determining the quality of communication service for the mobile at a second intersection different from the first intersection, located at the destination of the mobile, based on the quality information;
    instructing a second base station that provides communication services at the second intersection to provide communication services based on the determined quality;
    Base station control method.
15. The base station control method according to claim 14, wherein said second intersection is an intersection on a road connected to said first intersection.
16. In the determining process,
    If the quality level of the communication service provided to the mobile object at the first intersection is low, the quality of the communication service at the second intersection is improved so as to improve the quality of the communication service at the second intersection. 16. The base station control method according to claim 14 or 15, wherein the base station is determined.
17. In the acquisition process,
    Further acquire an image of a camera installed at the first intersection,
    In the determining process,
    17. The base station control method according to any one of claims 14 to 16, wherein said second intersection is specified based on an image of a moving object appearing in said image.
18. In the determining process,
    setting a group by selecting a plurality of moving bodies traveling in the same direction as the moving body at the first intersection;
    communication of each mobile at said second base station so that the sum of quality levels of communication services received from said first base station and said second base station by each mobile belonging to said group is leveled 18. The method of controlling a base station according to any one of claims 14 to 17, wherein quality of service is determined.
19. In the determining process,
    Determining whether the group is maintained at the second intersection based on the congestion state of the road between the first intersection and the second intersection and the signal control information of the traffic signal at the second intersection. ,
    19. The method of controlling a base station according to claim 18, wherein when it is determined that said group is not maintained at said second intersection, leveling of the quality level of communication services within said group at said second intersection is stopped. .
    
    

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