Information processing device, information processing method, and program

Abstract

An information processing device, method, and program are provided that control the transmission power of an aircraft that forms a wireless communication area by transmitting radio waves using an SL (Service Link) antenna. [Solution] In the wireless communication system, the information processing device 200 includes an acquisition unit that acquires operation information of the wireless communication function of the wireless base station and flight position information indicating the flight position of the aircraft, and a determination unit that, when the operation information indicates that the wireless communication function of the wireless base station is not operating normally, determines the transmission power of the radio waves transmitted by the SL antenna of the aircraft based on flight position information of the aircraft flying above the cell formed by the wireless base station when the wireless communication function was operating normally, reception position information indicating the reception position where the radio waves transmitted by the wireless base station and the radio waves transmitted by an adjacent wireless base station of the wireless base station are received with the same reception power, and reception power information indicating the reception power.

Description

[Technical Field]

[0001] The present invention relates to an information processing device, an information processing method, and a program. [Background technology]

[0002] Patent document 1 describes a HAPS (High Altitude Platform Station) that establishes a feeder link with a terrestrial gateway, establishes a service link with a terrestrial terminal, and provides wireless communication services to the terminal by relaying communication between the gateway and the terminal. [Prior art document] [Patent documents] [Patent Document 1] JP 2019-135823 A Summary of the Invention [Means for solving the problem]

[0003] According to one embodiment of the present invention, there is provided an information processing device. The information processing device may include a storage unit that stores first reception position information indicating a first reception position where radio waves transmitted by one radio base station among a plurality of radio base stations installed on the ground and radio waves transmitted by an adjacent radio base station adjacent to the one radio base station among the plurality of radio base stations are received with the same first reception power, in association with first reception power information indicating the first reception power. The information processing device may include an acquisition unit that acquires operation information indicating whether a radio communication function of each radio base station of the plurality of radio base stations is operating normally, and flight position information indicating the flight position of an air vehicle that forms a wireless communication area by transmitting radio waves using an SL (Service Link) antenna. The information processing device may include a determination unit that, when the operation information indicates that the wireless communication function of the one wireless base station is not operating normally, determines the transmission power of the radio waves transmitted by the SL antenna based on the flight position information of the aircraft flying above the cell formed by the one wireless base station when the wireless communication function was operating normally, the first reception position information, and the first reception power information, so that the reception power when the radio waves transmitted by the SL antenna are received at the first reception position indicated by the first reception position information satisfies a predetermined reception power condition.

[0004] In the information processing device, the determination unit may determine the transmission power so that the received power when the radio waves transmitted by the SL antenna are received at the first receiving position is less than or equal to the first received power indicated by the first received power information.

[0005] In any one of the information processing devices, the determination unit is Tx =P T -P0+P Los The transmit power may be determined using Tx may be the transmission power, and P T may be the first received power, P0 may be a predetermined power, and P Losmay be the free space loss of radio waves propagating from the flight position of the aircraft indicated by the flight position information to the first receiving position.

[0006] In any of the information processing devices, the determination unit may determine the transmission power so that the reception power when the radio waves transmitted by the SL antenna are received at the first reception position is the first reception power indicated by the first reception power information.

[0007] In any of the information processing devices, the storage unit may further store gateway installation location information indicating the installation location of a gateway installed on the ground, and the determination unit may further determine a flight path of the aircraft based on the gateway installation location information so that the aircraft can establish a feeder link with the gateway by transmitting radio waves using an FL (Feeder Link) antenna while the aircraft is flying above the cell that was formed by the one wireless base station when the wireless communication function was operating normally.

[0008] In any of the information processing devices, the storage unit may further store coverage area information indicating the coverage area of ​​a cell formed by each radio base station of the plurality of radio base stations, and the determination unit may determine the flight path of the aircraft so that the wireless communication area covers more of the coverage area of ​​the cell formed by the one radio base station when the wireless communication function was operating normally, as indicated by the coverage area information.

[0009] In any of the information processing devices, the storage unit may further store frequency information indicating a frequency of radio waves transmitted by each of the plurality of radio base stations, and the information processing device may further include a control unit that controls the SL antenna so as to form the radio communication area by transmitting radio waves having the same frequency as the frequency indicated by the frequency information of the one radio base station and the transmission power.

[0010] In any of the information processing devices, the storage unit may further store second reception position information indicating a second reception position where radio waves transmitted by the one radio base station and radio waves transmitted by another adjacent radio base station among the plurality of radio base stations that is adjacent to the one radio base station are received with the same second reception power, in association with second reception power information indicating the second reception power, and the determination unit may determine the transmission power based further on the second reception position information and the second reception power information so that the reception power when the radio waves transmitted by the SL antenna are received at the second reception position indicated by the second reception position information further satisfies the reception power condition.

[0011] In any of the information processing devices, the storage unit may further store third reception position information indicating a third reception position where radio waves transmitted by another radio base station among the plurality of radio base stations and radio waves transmitted by another adjacent radio base station adjacent to the other radio base station among the plurality of radio base stations are received with the same third reception power, in association with third reception power information indicating the third reception power, and when the operation information indicates that the wireless communication function of the one radio base station and the wireless communication function of the other radio base station are not operating normally, the determination unit may determine the transmission power further based on the third reception position information and the third reception power information so that the reception power when the radio waves transmitted by the SL antenna are received at the third reception position indicated by the third reception position information further satisfies the reception power condition.

[0012] In any of the information processing devices, the information processing device may be mounted on the flying object.

[0013] According to one embodiment of the present invention, there is provided an information processing method executed by a computer, which stores reception position information indicating a reception position at which radio waves transmitted by one radio base station among a plurality of radio base stations installed on the ground and radio waves transmitted by an adjacent radio base station adjacent to the one radio base station among the plurality of radio base stations are received with the same reception power, in association with reception power information indicating the reception power. The information processing method may include an acquisition step of acquiring operation information indicating whether a radio communication function of each radio base station of the plurality of radio base stations is operating normally, and flight position information indicating the flight position of an air vehicle that forms a wireless communication area by transmitting radio waves using an SL antenna. The information processing method may include a determination step of determining, when the operation information indicates that the wireless communication function of the one wireless base station is not operating normally, the transmission power of the radio waves transmitted by the SL antenna based on the flight position information of the aircraft flying above the cell formed by the one wireless base station when the wireless communication function was operating normally, the reception position information, and the reception power information, so that the reception power when the radio waves transmitted by the SL antenna are received at the reception position indicated by the reception position information satisfies predetermined reception power conditions.

[0014] According to one embodiment of the present invention, there is provided a program for causing a computer to execute the information processing method.

[0015] The above summary of the invention does not list all of the necessary features of the present invention, and subcombinations of these features may also constitute inventions. [Brief explanation of the drawings]

[0016] [Figure 1] An example of a system 10 is shown schematically. [Figure 2] 1 is an explanatory diagram illustrating an example of the relationship between the flight position of the flying object 100 and the received power of the radio waves transmitted by the SL antenna 140. FIG. [Figure 3]10 is an explanatory diagram for explaining an example of radio waves transmitted by the SL antenna 140. FIG. [Figure 4] 10 is an explanatory diagram for explaining another example of radio waves transmitted by the SL antenna 140. FIG. [Figure 5] 10 is an explanatory diagram for explaining another example of radio waves transmitted by the SL antenna 140. FIG. [Figure 6] 10 illustrates an example of cell-related information. [Figure 7] 2 shows an example of a functional configuration of an information processing device 200. [Figure 8] 2 shows an example of a functional configuration of a control device 500. [Figure 9] FIG. 2 is an explanatory diagram illustrating an example of a processing flow of the information processing device 200. [Figure 10] An example of the hardware configuration of a computer 1200 that functions as the information processing device 200 or the control device 500 is shown in schematic form. DETAILED DESCRIPTION OF THE INVENTION

[0017] In the event of a disaster, when a wireless base station mounted on a UAV (Unmanned Aerial Vehicle) flying over a disaster-stricken area where wireless communication services are unavailable due to the disaster provides wireless communication services to the disaster-stricken area, interference may occur between the radio waves emitted by the UAV-mounted wireless base station and the radio waves emitted by a normally operating terrestrial wireless base station. In this embodiment, the system employs a mechanism for dynamically adjusting the transmission power of the radio waves emitted by the UAV-mounted wireless base station based on, for example, a database stored in the UAV regarding the received power of radio waves emitted by terrestrial wireless base stations and the UAV's location information, so that the received power of the radio waves emitted by the UAV-mounted wireless base station is equal to or less than the received power of the radio waves emitted by normally operating terrestrial wireless base stations. This prevents mobile phone terminals currently connected wirelessly to normally operating terrestrial wireless base stations from wirelessly connecting to the UAV-mounted wireless base station and minimizes the occurrence of the aforementioned interference.

[0018] The present invention will be described below through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. Furthermore, not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention. In the drawings, the same reference numerals are used to designate the same or similar parts, and redundant explanations may be omitted.

[0019] 1 schematically illustrates an example of a system 10. The system 10 may include an air vehicle 100. The system 10 may include an information processing device 200. The system 10 may include a control device 500.

[0020] The system 10 provides wireless communication services using the air vehicle 100. The area where the wireless communication services using the air vehicle 100 are provided may be an area where wireless communication services are not provided.

[0021] An area where wireless communication services are not provided includes, for example, the coverage area of ​​a cell formed by a radio base station installed on the ground and whose wireless communication function is not operating normally when the wireless communication function was operating normally. A case where the wireless communication function of a radio base station is not operating normally includes, for example, a case where the radio base station is damaged or collapsed due to a disaster such as an earthquake, tsunami, or lightning strike. A case where the wireless communication function of a radio base station is not operating normally includes, for example, a case where the radio base station has deteriorated over time. A case where the wireless communication function of a radio base station is not operating normally may include a case where the radio base station is shut down for maintenance or the like. An area where wireless communication services are not provided may also include an area where no radio base station is installed on the ground.

[0022] Here, being installed on the ground includes being installed on a building such as a building, etc. In other words, being installed on the ground is not limited to being installed on the ground.

[0023] The air vehicle 100 may be any air vehicle capable of providing wireless communication services. The air vehicle 100 may be, for example, a glider. The air vehicle 100 may be, for example, a vertical take-off and landing aircraft. The air vehicle 100 may be, for example, a balloon.

[0024] The air vehicle 100 is, for example, an unmanned aerial vehicle. The air vehicle 100 is, for example, a drone. The air vehicle 100 is, for example, a so-called HAPS that functions as a stratospheric platform. The air vehicle 100 may also be a manned aircraft.

[0025] The flying object 100 has, for example, an FL antenna 120. The FL antenna 120 transmits, for example, omnidirectional radio waves. The FL antenna 120 may also transmit directional radio waves.

[0026] The air vehicle 100 establishes a feeder link 122 with a ground-based gateway 30, for example, by transmitting radio waves using an FL antenna 120. The air vehicle 100 may access the network 20 via the gateway 30.

[0027] The network 20 may include a core network provided by a telecommunications carrier. The core network may conform to, for example, a 5G (5th Generation) communication system. The core network may conform to a 6G (6th Generation) communication system or later mobile communication system. The core network may conform to a 3G (3rd Generation) communication system. The core network may conform to an LTE (Long Term Evolution) communication system. The network 20 may include the Internet.

[0028] The aircraft 100 includes, for example, an SL antenna 140. The SL antenna 140 transmits, for example, omnidirectional radio waves. The SL antenna 140 may also transmit directional radio waves.

[0029] The aircraft 100 forms a wireless communication area 142 by transmitting radio waves using, for example, the SL antenna 140. This allows the aircraft 100 to establish a service link with a communication terminal 400 within the wireless communication area 142 and provide a wireless communication service.

[0030] The wireless communication area 142 may include, for example, one cell. The wireless communication area 142 may include, for example, multiple cells. In this case, the SL antenna 140 may be an antenna capable of transmitting multiple radio waves, and the aircraft 100 may have multiple SL antennas 140.

[0031] The communication terminal 400 may be any communication terminal capable of establishing a service link with the air vehicle 100. For example, the communication terminal 400 may be a mobile phone such as a smartphone, a tablet terminal, a wearable terminal, or the like. The communication terminal 400 may be a PC (Personal Computer). The communication terminal 400 may be an IoT (Internet of Things) terminal. The communication terminal 400 may include anything that corresponds to the IoE (Internet of Everything).

[0032] The aircraft 100 includes, for example, a storage section 150. The storage section 150 may store the FL antenna 120 and the SL antenna 140.

[0033] The air vehicle 100 flies, for example, in accordance with an air vehicle control signal that controls the air vehicle 100. The air vehicle 100 flies, for example, in accordance with an air vehicle control signal received from an external device. The air vehicle 100 may generate an air vehicle control signal on its own and fly in accordance with the generated air vehicle control signal. In this case, the air vehicle 100 may be an autonomous air vehicle.

[0034] The aircraft 100 forms the wireless communication area 142, for example, while circling in the sky. The aircraft 100 circulates, for example, in a circular orbit. The aircraft 100 circulates, for example, in a figure-eight orbit. The aircraft 100 circulates, for example, in a rectangular orbit. The aircraft 100 circulates, for example, in a D-shaped orbit. The aircraft 100 may circulate, for example, in an orbit of any other shape.

[0035] Air vehicle 100 flies at an altitude of, for example, about 3 km to about 10 km. If air vehicle 100 is a HAPS, air vehicle 100 may fly in the stratosphere. The stratosphere may be an area with an altitude of about 10 km to about 50 km.

[0036] The aircraft 100 includes, for example, a battery. The aircraft 100 flies using, for example, power stored in the battery. The aircraft 100 may also fly using fuel carried on board the aircraft.

[0037] The flying object 100 measures its flight position using, for example, a positioning sensor mounted on the flying object 100. The positioning sensor includes, for example, a GNSS (Global Navigation Satellite System) sensor. The positioning sensor includes, for example, a GPS (Global Positioning System) sensor. The positioning sensor includes, for example, an RTK (Real Time Kinematic) sensor.

[0038] The flying object 100, for example, transmits to an external device flight position information indicating the flight position of the flying object 100. The flying object 100 transmits to an external device flight position information of the flying object 100, for example, via the gateway 30 and the network 20.

[0039] The flying object 100 transmits, for example, flight position information of the flying object 100 to the information processing device 200. The flying object 100 transmits, for example, flight position information of the flying object 100 to the control device 500.

[0040] The information processing device 200 executes various information processes for providing wireless communication services using the flying object 100. The information processing device 200 executes the various information processes based on, for example, various pieces of information.

[0041] The information processing device 200 executes various information processes based on various information stored therein, for example. The information processing device 200 stores, for example, cell-related information related to cells formed by each of a plurality of radio base stations installed on the ground.

[0042] The cell-related information includes, for example, cell identification information that identifies the cell. The cell-related information includes, for example, radio base station information that indicates a radio base station that forms the cell. The cell-related information includes, for example, coverage area information that indicates a coverage area of ​​the cell. The coverage area information includes, for example, cell center position information that indicates a center position of the cell and cell radius information that indicates a radius of the cell. The cell-related information includes, for example, neighboring cell information that indicates an adjacent cell adjacent to the cell. The cell-related information includes reception position information that indicates a reception position where radio waves transmitted by a radio base station that forms the cell among the multiple radio base stations and radio waves transmitted by a radio base station that forms the adjacent cell among the multiple radio base stations are received with the same reception power. Here, the term "same reception power" may include an error within a range that does not affect the various processes performed by the information processing device 200. Note that the radio base station that forms the adjacent cell may be referred to as an adjacent radio base station that is adjacent to the radio base station that forms the cell. The cell-related information includes, for example, reception power information that indicates the reception power. The cell-related information includes, for example, operation information indicating whether the wireless communication function of the radio base station that forms the cell is operating normally. The cell-related information includes, for example, frequency information indicating the frequency of radio waves transmitted by the radio base station that forms the cell. The cell-related information includes, for example, wavelength information indicating the wavelength of radio waves transmitted by the radio base station that forms the cell. The cell-related information may also include any other information related to the cell.

[0043] The information processing device 200 executes various information processes based on various information acquired from an external device, for example. The information processing device 200 acquires various information from the external device by receiving the various information from the external device via the network 20, for example.

[0044] The information processing device 200, for example, acquires flight position information of the flying object 100 from the flying object 100. The information processing device 200, for example, acquires operation information of each wireless base station from each wireless base station of the plurality of wireless base stations.

[0045] The information processing device 200 determines whether or not to provide a wireless communication service using the air vehicle 100 based on, for example, operation information of each wireless base station of the plurality of wireless base stations. For example, if there is a wireless base station among the plurality of wireless base stations whose wireless communication function is not operating normally, the information processing device 200 decides to provide a wireless communication service using the air vehicle 100. Details of when the information processing device 200 decides to provide a wireless communication service using the air vehicle 100 will be described later. On the other hand, if there is no wireless base station among the plurality of wireless base stations whose wireless communication function is not operating normally, the information processing device 200 decides not to provide a wireless communication service using the air vehicle 100.

[0046] 1 shows an example in which the information processing device 200 is installed on the ground. The information processing device 200 may be mounted on the flying object 100.

[0047] The control device 500 controls the air vehicle 100. The control device 500 controls the air vehicle 100, for example, by transmitting an air vehicle control signal to the air vehicle 100. The control device 500 transmits the air vehicle control signal to the air vehicle 100, for example, via the network 20 and the gateway 30.

[0048] The control device 500, for example, controls the flight of the flying object 100. The control device 500 controls the flight of the flying object 100, for example, so that the flying object 100 flies in circles in the sky. The flying object 100 may fly in accordance with the control of the control device 500.

[0049] The control device 500 controls the flight of the aircraft 100, for example, by controlling the flight speed of the aircraft 100. The control device 500 controls the flight of the aircraft 100, for example, by controlling the flight direction of the aircraft 100. The control device 500 controls the flight of the aircraft 100, for example, by controlling the flight altitude of the aircraft 100. The control device 500 controls the flight of the aircraft 100, for example, by controlling the flight attitude of the aircraft 100.

[0050] The control device 500 controls, for example, the FL antenna 120 mounted on the flying object 100. The control device 500 controls the FL antenna 120 to establish a feeder link 122 between the flying object 100 and the gateway 30, for example, by transmitting radio waves. The FL antenna 120 may operate according to the control of the control device 500.

[0051] The control device 500 controls, for example, the SL antenna 140 mounted on the aircraft 100. The control device 500 controls, for example, the SL antenna 140 so as to form a wireless communication area 142 by transmitting radio waves. The control device 500 controls, for example, the SL antenna 140 so as to form the wireless communication area 142 by transmitting radio waves of the same frequency as the frequency of radio waves transmitted by the wireless base station when the wireless communication function was operating normally. The SL antenna 140 may operate under the control of the control device 500.

[0052] 1 shows an example in which the information processing device 200 and the control device 500 are different devices. The information processing device 200 and the control device 500 may be integrated. In this case, the information processing device 200 may have a control function for controlling the flying object 100.

[0053] Here, an example of the processing flow of the system 10 will be described when the wireless communication function of the wireless base station 310 is operating normally but the wireless communication function of the wireless base station 330 adjacent to the wireless base station 310 is not operating normally. In this case, the area where the wireless communication service using the aircraft 100 is provided is the coverage area of ​​the cell 332 formed by the wireless base station 330 when the wireless communication function of the wireless base station 330 was operating normally.

[0054] Since the operation information of the wireless base station 330 indicates that the wireless communication function of the wireless base station 330 is not operating normally, the information processing device 200 may decide to provide a wireless communication service using the flying object 100. In this case, the information processing device 200 may transmit coverage area information indicating the coverage area of ​​the cell 332 to the control device 500 via the network 20. The control device 500 may control the flight of the flying object 100 so that the flying object 100 flies above the cell 332, based on the coverage area of ​​the cell 332 indicated by the coverage area information received from the information processing device 200.

[0055] The information processing device 200 determines the transmission power of radio waves to be transmitted by the SL antenna 140 mounted on the aircraft 100 flying above a cell 332 in order to provide a wireless communication service using the aircraft 100. The information processing device 200 determines the transmission power of radio waves to be transmitted by the SL antenna 140 based on, for example, flight position information of the aircraft 100 and reception position information included in the cell-related information, the reception position information indicating a reception position 315 at which radio waves transmitted by a wireless base station 310 forming the cell 312 and radio waves transmitted by a wireless base station 330 are received with the same reception power, and reception power information indicating the reception power. The information processing device 200 determines the transmission power of radio waves to be transmitted by the SL antenna 140, for example, so that the reception power when the radio waves transmitted by the SL antenna 140 are received at the reception position 315 indicated by the reception position information satisfies a predetermined reception power condition.

[0056] The reception power condition includes, for example, that the reception power of radio waves transmitted by the SL antenna 140 when received at the reception position 315 is equal to or less than the reception power indicated by the reception power information. Note that the expression "the reception power of radio waves transmitted by the SL antenna 140 when received at the reception position 315 is equal to or less than the reception power indicated by the reception power information" includes both a case where the reception power of radio waves transmitted by the SL antenna 140 when received at the reception position 315 is less than the reception power indicated by the reception power information and a case where the reception power of radio waves transmitted by the SL antenna 140 when received at the reception position 315 is equal to the reception power indicated by the reception power information. The reception power condition includes, for example, that the reception power of radio waves transmitted by the SL antenna 140 when received at the reception position 315 is equal to the reception power indicated by the reception power information. The reception power condition includes, for example, that the reception power of radio waves transmitted by the SL antenna 140 when received at the reception position 315 is equal to the reception power indicated by the reception power information.

[0057] The information processing device 200 transmits transmission power information indicating the transmission power of the radio waves transmitted by the SL antenna 140 to the control device 500 via the network 20. The control device 500 may control the SL antenna 140 so as to transmit radio waves at the transmission power indicated by the transmission power information received from the information processing device 200.

[0058] Currently, active research is being conducted into technologies that, when the wireless communication function of a ground-based wireless base station stops working properly, use an aircraft equipped with wireless communication functions to provide wireless communication services to the area where the wireless base station previously provided wireless communication services. By using the wireless communication service provided by the aircraft, users who had been using the wireless communication services provided by the wireless base station can continue to use the wireless communication services even after the wireless communication function of the wireless base station stops working properly.

[0059] On the other hand, when providing wireless communication services using the aircraft, there is a risk of radio wave interference occurring between radio waves transmitted by the aircraft and radio waves transmitted by the wireless base station and its adjacent wireless base stations. Such radio wave interference is one factor that degrades the communication quality of users using wireless communication services provided by the wireless base station and its adjacent wireless base stations. In particular, when the frequency of the radio waves transmitted by the aircraft is the same as the frequency of the radio waves transmitted by the wireless base station and its adjacent wireless base stations, such radio wave interference can further degrade the communication quality of the users.

[0060] Furthermore, the wireless communication service provided by the aircraft differs from that provided by a wireless base station in that the aircraft transmits radio waves while flying in the sky. Therefore, it is desirable to be able to provide wireless communication services using the aircraft to areas where wireless communication services are not provided by ground-based wireless base stations while taking into consideration the difference between the wireless communication services provided by the aircraft and the wireless communication services provided by the wireless base station and suppressing the occurrence of the above-mentioned radio wave interference.

[0061] In contrast, in the system 10 according to the present embodiment, the information processing device 200 pre-stores cell-related information related to cells formed by each of a plurality of radio base stations installed on the ground. When the wireless communication function of one of the plurality of radio base stations is not operating normally, the information processing device 200 determines the transmission power of radio waves transmitted by the SL antenna 140 mounted on the aircraft 100 based on flight position information of the aircraft 100 flying above the cell formed by that radio base station when the wireless communication function was operating normally, and reception position information and reception power information included in the cell-related information of the cell formed by that radio base station, so that the reception power of the radio waves transmitted by the SL antenna 140 satisfies a predetermined reception power condition when received at the reception position indicated by the reception position information. For example, the information processing device 200 determines the transmission power so that the reception power of the radio waves transmitted by the SL antenna 140 when received at the reception position is equal to or less than the reception power indicated by the reception power information.

[0062] By determining the transmission power so that the received power of radio waves transmitted by the SL antenna 140 when received at the receiving position satisfies the reception power condition, the information processing device 200 can determine the transmission power so that radio wave interference does not occur between the radio waves transmitted by the SL antenna 140 and the radio waves transmitted by the one radio base station and an adjacent radio base station adjacent to the one radio base station. Furthermore, since the one radio base station does not transmit radio waves in the coverage area of ​​a wireless communication service using the flying object 100, even if the transmission power is relatively low, communication terminals 400 in the coverage area can receive the radio waves transmitted by the SL antenna 140. Furthermore, by determining the transmission power based on flight position information of the flying object 100 flying above the cell formed by the one radio base station when the wireless communication function was operating normally, the information processing device 200 can dynamically determine the transmission power in response to changes in the flight position of the flying object 100 so that the received power of radio waves transmitted by the SL antenna 140 when received at the receiving position satisfies the reception power condition. As a result, the system 10 of this embodiment can provide wireless communication services using an aircraft equipped with wireless communication functions to areas where wireless communication services are not provided by wireless base stations, while suppressing the occurrence of radio wave interference between radio waves transmitted by the aircraft and radio base stations whose wireless communication functions are not operating normally and radio waves transmitted by adjacent wireless base stations.

[0063] In addition, according to the system 10 of this embodiment, the occurrence of radio wave interference is suppressed by the transmission power of the radio waves transmitted by the SL antenna 140, so that the occurrence of radio wave interference can be suppressed without using beamforming technology or a control mechanism for controlling the propagation direction of the radio waves transmitted by the antenna mounted on the air vehicle. As a result, the system 10 of this embodiment can provide wireless communication services using the air vehicle to areas where wireless communication services are not provided by wireless base stations while suppressing the occurrence of radio wave interference, using a smaller and less expensive air vehicle.

[0064] Furthermore, when the frequency of radio waves transmitted by the SL antenna 140 is the same as the frequency of radio waves transmitted by the wireless base station when the wireless communication function was operating normally, the SL antenna 140 can transmit radio waves using the frequency resources allocated to the wireless base station for transmitting radio waves. This means that frequency resources do not need to be allocated to the air vehicle, and more frequency resources can be allocated to the wireless base station. As a result, when the frequency of radio waves transmitted by the SL antenna 140 is the same as the frequency of radio waves transmitted by the wireless base station when the wireless communication function was operating normally, the system 10 according to the present embodiment can provide wireless communication services using the air vehicle to areas where wireless communication services are not provided by the wireless base station while suppressing the occurrence of radio wave interference, with higher frequency resource utilization efficiency.

[0065] 2 is an explanatory diagram illustrating an example of the relationship between the flight position of the flying object 100 and the received power of radio waves transmitted by the SL antenna 140. Here, it is assumed that the EIRP (Equivalent Isotropic Radiation Power) of the radio waves transmitted by the SL antenna 140 is 30 bBm, the center frequency f of the radio waves transmitted by the SL antenna 140 is 2.1 GHz, and the flight altitude h of the flying object 100 is 3000 m. Here, EIRP is the transmission power required when the antenna is replaced with an isotropic antenna. Note that an isotropic antenna is a hypothetical antenna with no loss that radiates power uniformly in all directions, and the EIRP of the SL antenna 140 may be an example of the radio waves transmitted by the SL antenna 140.

[0066] The flight position of the flying object 100 is represented as (x, y) in the xy coordinate system shown in FIG. 2. The receiving position O where the radio waves transmitted by the SL antenna 140 are received is represented as (0, 0) in the xy coordinate system shown in FIG. 2. In other words, the receiving position O is the origin of the xy coordinate system shown in FIG. 2. In this case, the distance r between the flight position of the flying object 100 and the receiving position O is expressed as r=(x 2 +y 2 )1 / 2 Meet the following.

[0067] The flight position of the flying object 100 is expressed as (x A ,h) is the flight position A, where x A By substituting = 1000 m and h = 3000 m into the above formula, the distance r between the flight position A and the receiving position O is A ≒3160 m. In addition, the flight position of the flying object 100 is calculated as (x B ,h) is the flight position B, where x B By substituting = 2000 m and h = 3000 m into the above formula, the distance r between the flight position B and the receiving position O is B ≒3600m is derived.

[0068] The free space loss P of the radio wave propagating from the flight position of the flying object 100 to the receiving position O Los satisfies the relationship expressed by the following formula: Note that free space loss is the propagation loss of radio waves in a vacuum space where there are no reflecting objects or obstructions between the transmitting antenna and the receiving antenna.

[0069]

number

[0070] Here, λ is the wavelength of the radio wave transmitted by the SL antenna 140. f is the frequency of the radio wave transmitted by the SL antenna 140. c is the propagation velocity of the radio wave transmitted by the SL antenna 140.

[0071] In the above formula, r A =3160m, f=2.1GHz, c=3.0×10 8 By substituting m / s, the free space loss P Los_A ≒109 dB is derived. B = 3600 m, f = 2.1 GHz, c = 3.0 × 10 8By substituting m / s, the free space loss P Los_A ≒110dB is derived.

[0072] The received power P when the radio wave transmitted by the SL antenna 140 is received at the receiving position O is Rx is P Rx =P Tx -P Los where P Tx is the EIRP of the radio wave transmitted by the SL antenna 140.

[0073] In the above formula, P Tx =30bBm, P Los_A By substituting ≒109 dB, the received power P when the radio waves transmitted by the SL antenna 140 are received at the receiving position O when the flying object 100 is at the flying position A is calculated. Rx_A =-79dBm is derived. Tx =30bBm, P Los_B By substituting ≈110 dB, the received power P when the radio waves transmitted by the SL antenna 140 are received at the receiving position O when the flying object 100 is at the flying position B is calculated. Rx_B =-80dBm is derived.

[0074] P Rx_A and P Rx_B The difference in received power between Rx =P Rx_B -P Rx_A =-80dBm-(-79dBm)=-1dBm. This means that when r changes by about 440m, P Rx It can be seen that the change is approximately 1 dBm.

[0075] 3 is an explanatory diagram illustrating an example of radio waves transmitted by the SL antenna 140. Here, an example of radio waves transmitted by the SL antenna 140 will be described when the radio communication functions of the radio base station 310 and the radio base station 320 are operating normally and the radio communication function of the radio base station 330 is not operating normally. It is assumed that the radio base station 310 and the radio base station 320 are adjacent radio base stations adjacent to the radio base station 330.

[0076] For example, when the wireless communication function of the wireless base station 330 is not operating normally, the information processing device 200 determines the transmission power of the radio waves transmitted by the SL antenna 140 mounted on the flying object 100. For example, the information processing device 200 determines the transmission power of the radio waves transmitted by the SL antenna 140 based on flight position information of the flying object 100 flying above the cell 332 formed by the wireless base station 330 when the wireless communication function was operating normally, and cell-related information of the cell 332. Here, the cell-related information of cell 332 includes at least first receiving position information indicating a receiving position 315 where radio waves transmitted by radio base station 330 and radio waves transmitted by radio base station 310 forming cell 312 adjacent to cell 332 are received with the same first receiving power, first receiving power information indicating the first receiving power, second receiving position information indicating a receiving position 325 where radio waves transmitted by radio base station 330 and radio waves transmitted by radio base station 320 forming cell 322 adjacent to cell 332 are received with the same second receiving power, and second receiving power information indicating the second receiving power.

[0077] The information processing device 200 determines the transmission power so that, for example, the reception power when the radio waves transmitted by the SL antenna 140 are received at the reception position 315 and the reception power when the radio waves transmitted by the SL antenna 140 are received at the reception position 325 each satisfy the reception power condition. As a result, the system 10 shown in Fig. 3 can provide wireless communication services to areas where wireless communication services are not provided by wireless base stations using the aircraft equipped with wireless communication functions, while suppressing the occurrence of radio wave interference between the radio waves transmitted by the aircraft and the radio waves transmitted by a wireless base station whose wireless communication function is not operating normally and each of a plurality of adjacent wireless base stations.

[0078] 4 is an explanatory diagram illustrating another example of radio waves transmitted by the SL antenna 140. Here, an example of radio waves transmitted by the SL antenna 140 will be described when the radio communication function of the radio base station 310 is operating normally and the radio communication functions of the radio base stations 330 and 360 are not operating normally. It is assumed that the radio base station 310 is an adjacent radio base station adjacent to the radio base station 330 and that the radio base station 310 is an adjacent radio base station adjacent to the radio base station 360.

[0079] For example, when the wireless communication functions of the wireless base station 330 and the wireless base station 360 are not operating normally, the information processing device 200 determines the transmission power of the radio waves to be transmitted by the SL antenna 140 mounted on the flying object 100. For example, the information processing device 200 determines the transmission power of the radio waves to be transmitted by the SL antenna 140 based on flight position information of the flying object 100 flying above at least one of the cell 332 formed by the wireless base station 330 when the wireless communication function was operating normally and the cell 362 formed by the wireless base station 360 when the wireless communication function was operating normally, cell-related information of the cell 332, and cell-related information of the cell 362.

[0080] Here, the cell-related information of cell 332 includes at least first reception position information indicating reception position 315 where radio waves transmitted by radio base station 330 and radio waves transmitted by radio base station 310 forming cell 312 adjacent to cell 332 are received at the same first reception power, and first reception power information indicating the first reception power. Also, the cell-related information of cell 362 includes at least second reception position information indicating reception position 318 where radio waves transmitted by radio base station 360 and radio waves transmitted by radio base station 310 forming cell 312 adjacent to cell 362 are received at the same second reception power, and second reception power information indicating the second reception power.

[0081] The information processing device 200 determines the transmission power so that, for example, the reception power when the radio waves transmitted by the SL antenna 140 are received at the reception position 315 and the reception power when the radio waves transmitted by the SL antenna 140 are received at the reception position 318 each satisfy the reception power condition. As a result, the system 10 shown in Fig. 4 can provide wireless communication services to areas where wireless communication services are not provided by a wireless base station by using an air vehicle equipped with a wireless communication function, while suppressing the occurrence of radio wave interference between the radio waves transmitted by the air vehicle and the radio waves transmitted by each wireless base station of multiple wireless base stations whose wireless communication functions are not operating normally and adjacent wireless base stations.

[0082] 5 is an explanatory diagram for explaining another example of radio waves transmitted by the SL antenna 140. Here, an example of radio waves transmitted by the SL antenna 140 will be explained when the radio communication functions of the radio base station 310, the radio base station 320, the radio base station 340, and the radio base station 350 are operating normally, and the radio communication functions of the radio base station 330 and the radio base station 360 are not operating normally. It is assumed that the radio base station 310 and the radio base station 320 are adjacent radio base stations adjacent to the radio base station 330, and the radio base station 340 and the radio base station 350 are adjacent radio base stations adjacent to the radio base station 360.

[0083] For example, when the wireless communication functions of the wireless base station 330 and the wireless base station 360 are not operating normally, the information processing device 200 determines the transmission power of the radio waves to be transmitted by the SL antenna 140 mounted on the flying object 100. For example, the information processing device 200 determines the transmission power of the radio waves to be transmitted by the SL antenna 140 based on flight position information of the flying object 100 flying above at least one of the cell 332 formed by the wireless base station 330 when the wireless communication function was operating normally and the cell 362 formed by the wireless base station 360 when the wireless communication function was operating normally, cell-related information of the cell 332, and cell-related information of the cell 362.

[0084] Here, the cell-related information of cell 332 includes at least first receiving position information indicating a receiving position 315 where radio waves transmitted by radio base station 330 and radio waves transmitted by radio base station 310 forming cell 312 adjacent to cell 332 are received with the same first receiving power, first receiving power information indicating the first receiving power, second receiving position information indicating a receiving position 325 where radio waves transmitted by radio base station 330 and radio waves transmitted by radio base station 320 forming cell 322 adjacent to cell 332 are received with the same second receiving power, and second receiving power information indicating the second receiving power. Furthermore, the cell-related information of cell 362 includes at least third reception position information indicating a reception position 345 where radio waves transmitted by radio base station 360 and radio waves transmitted by radio base station 340 forming cell 342 adjacent to cell 362 are received with the same third reception power, third reception power information indicating the third reception power, fourth reception position information indicating a reception position 355 where radio waves transmitted by radio base station 360 and radio waves transmitted by radio base station 350 forming cell 352 adjacent to cell 362 are received with the same fourth reception power, and fourth reception power information indicating the fourth reception power.

[0085] The information processing device 200 determines the transmission power so that, for example, the reception power when the radio waves transmitted by the SL antenna 140 are received at the reception position 315, the reception power when the radio waves transmitted by the SL antenna 140 are received at the reception position 325, the reception power when the radio waves transmitted by the SL antenna 140 are received at the reception position 345, and the reception power when the radio waves transmitted by the SL antenna 140 are received at the reception position 355 each satisfy the reception power condition. As a result, the system 10 shown in Fig. 5 can provide wireless communication services to areas where wireless communication services are not provided by wireless base stations by using an air vehicle equipped with wireless communication functions, while suppressing the occurrence of radio wave interference between radio waves transmitted by the air vehicle and radio waves transmitted by each of multiple wireless base stations whose wireless communication functions are not operating normally and each of multiple adjacent wireless base stations.

[0086] 6 schematically illustrates an example of cell-related information. Here, it is assumed that the information processing device 200 stores, as the cell-related information, cell identification information, radio base station information, coverage area information, neighboring cell information, reception position information, reception power information, and operation information in association with each other.

[0087] "Cell A" identified by the cell identification information is formed by "wireless base station A" as indicated by the wireless base station information of cell A. "Cell B" identified by the cell identification information is formed by "wireless base station B" as indicated by the wireless base station information of cell B. "Cell C" identified by the cell identification information is formed by "wireless base station C" as indicated by the wireless base station information of cell C.

[0088] The cell center position of cell A is expressed as "(x y z)" in the xyz coordinate system, as indicated by the cell center position information of cell A included in the coverage area information of cell A. A ,y A ,z A )" The radius of cell A is "200 m" as indicated by the cell radius information of cell A included in the coverage area information of cell A.

[0089] The cell center position of cell B is expressed as "(x y z)" in the xyz coordinate system, as indicated by the cell center position information of cell B included in the coverage area information of cell B. B ,y B ,z B )" The radius of cell B is "250 m" as indicated by the cell radius information of cell B included in the coverage area information of cell B.

[0090] The cell center position of cell C is expressed as "(x y z)" in the xyz coordinate system, as indicated by the cell center position information of cell C included in the coverage area information of cell C. C ,y C ,z C )" The radius of cell C is "300 m" as indicated by the cell radius information of cell C included in the coverage area information of cell C.

[0091] The neighboring cells adjacent to cell A are "cell B" and "cell C" as indicated by the neighboring cell information of cell A. The neighboring cell adjacent to cell B is "cell A" as indicated by the neighboring cell information of cell B. The neighboring cells adjacent to cell C are "cell A", "cell D", and "cell E" as indicated by the neighboring cell information of cell C.

[0092] The reception position where radio waves transmitted by wireless base station A forming cell A and radio waves transmitted by wireless base station B forming cell B adjacent to cell A are received with the same reception power is expressed as "(x y z)" in the x-y-z coordinate system, as indicated by the reception position information of cell A. AB ,y AB ,z AB )". The received power is "-112 dBm" as indicated by the received power information of cell A.

[0093] The reception position where radio waves transmitted by wireless base station A forming cell A and radio waves transmitted by wireless base station C forming cell C adjacent to cell A are received with the same reception power is expressed as "(x y z)" in the x-y-z coordinate system, as indicated by the reception position information of cell A. AC ,y AC ,z AC )" The received power is "-114 dBm" as indicated by the received power information of cell A.

[0094] The reception position where radio waves transmitted by wireless base station B forming cell B and radio waves transmitted by wireless base station A forming cell A adjacent to cell B are received with the same reception power is expressed as "(x y z)" in the x-y-z coordinate system, as indicated by the reception position information of cell B. AB ,y AB ,z AB )". The received power is "-112 dBm" as indicated by the received power information of cell B.

[0095] The reception position where radio waves transmitted by the wireless base station C forming the cell C and radio waves transmitted by the wireless base station A forming the cell A adjacent to the cell C are received with the same reception power is expressed as "(x y z)" in the x-y-z coordinate system, as indicated by the reception position information of the cell C. AC ,y AC ,z AC )". The received power is "-114 dBm" as indicated by the received power information of cell C.

[0096] The reception position where radio waves transmitted by the wireless base station C forming the cell C and radio waves transmitted by the wireless base station D forming the cell D adjacent to the cell C are received with the same reception power is expressed as "(x y z)" in the x-y-z coordinate system, as indicated by the reception position information of the cell C. CD ,y CD ,z CD )”. The received power is “−113 dBm” as indicated by the received power information of cell C.

[0097] The reception position where radio waves transmitted by the wireless base station C forming the cell C and radio waves transmitted by the wireless base station E forming the cell E adjacent to the cell C are received with the same reception power is expressed as "(x y z)" in the x-y-z coordinate system, as indicated by the reception position information of the cell C. CE ,y CE ,z CE )". The received power is "-115 dBm" as indicated by the received power information of cell C.

[0098] The operation status of the wireless communication function of wireless base station A that forms cell A is "normal" as indicated by the operation information of wireless base station A. The operation status of the wireless communication function of wireless base station B that forms cell B is "abnormal" as indicated by the operation information of wireless base station B. The operation status of the wireless communication function of wireless base station C that forms cell C is "normal" as indicated by the operation information of wireless base station C.

[0099] 7 shows an example of the functional configuration of the information processing device 200. The information processing device 200 includes a storage unit 202, an acquisition unit 204, a determination unit 206, a control unit 208, and a transmission unit 210. Note that it is not essential that the information processing device 200 includes all of these components.

[0100] The storage unit 202 stores various types of information. For example, the storage unit 202 stores gateway installation location information indicating the installation location of the gateway 30. For example, the storage unit 202 stores wireless base station installation location information indicating the installation location of each wireless base station of a plurality of wireless base stations installed on the ground.

[0101] The storage unit 202 stores, for example, cell-related information related to a cell formed by each of the plurality of radio base stations. The storage unit 202 stores, for example, reception position information indicating a reception position where radio waves transmitted by one of the plurality of radio base stations and radio waves transmitted by an adjacent radio base station adjacent to the one of the plurality of radio base stations are received with the same reception power, in association with reception power information indicating the reception power.

[0102] The acquisition unit 204 acquires various types of information. For example, the acquisition unit 204 acquires the various types of information by receiving the various types of information via the network 20. For example, the acquisition unit 204 acquires the various types of information by receiving the various types of information via the network 20 and the gateway 30. The acquisition unit 204 may acquire the various types of information by an input unit included in the information processing device 200 accepting input of the various types of information. The acquisition unit 204 may store the acquired various types of information in the storage unit 202.

[0103] The acquisition unit 204 acquires, for example, flight position information of the flying object 100. The acquisition unit 204 acquires, for example, the flight position information of the flying object 100 from the flying object 100. The acquisition unit 204 may acquire the flight position information of the flying object 100 from the control device 500.

[0104] The acquiring unit 204 acquires, for example, operation information of each radio base station of the plurality of radio base stations. The acquiring unit 204 acquires, for example, operation information of each radio base station by acquiring the operation information of each radio base station from each radio base station. The acquiring unit 204 may acquire the operation information of each radio base station by acquiring the operation information of each radio base station from a base station management device that manages the plurality of radio base stations.

[0105] The determination unit 206 determines matters related to the aircraft 100. The determination unit 206 determines matters related to the aircraft 100, for example, based on various information stored in the storage unit 202. The determination unit 206 determines matters related to the aircraft 100, for example, based on various information acquired by the acquisition unit 204.

[0106] The determination unit 206 determines, for example, the transmission power of radio waves transmitted by the SL antenna 140 mounted on the aircraft 100. The determination unit 206 determines the transmission power when, for example, the operation information indicates that the wireless communication function of one of the multiple wireless base stations is not operating normally.

[0107] The determination unit 206 determines the transmission power based on, for example, flight position information of the flying object 100 flying above a cell formed by the one wireless base station when the wireless communication function was operating normally, first reception position information indicating a first reception position where radio waves transmitted by the one wireless base station and radio waves transmitted by an adjacent wireless base station adjacent to the one wireless base station are received at the same first reception power, and first reception power information indicating the first reception power. The determination unit 206 determines the transmission power based on, for example, flight position information of the flying object 100 flying above the installation position of the one wireless base station indicated by the wireless base station installation position information of the one wireless base station, the first reception position information, and the first reception power information.

[0108] The determination unit 206 determines the transmission power, for example, so that the received power when the radio wave transmitted by the SL antenna 140 is received at the first receiving position satisfies a predetermined receiving power condition. The determination unit 206 determines the transmission power, for example, so that the received power when the radio wave transmitted by the SL antenna 140 is received at the first receiving position is equal to or less than the first receiving power. The determination unit 206 determines the transmission power, for example, so that the received power when the radio wave transmitted by the SL antenna 140 is received at the first receiving position is smaller than the first receiving power. The determination unit 206 determines the transmission power, for example, so that the received power when the radio wave transmitted by the SL antenna 140 is received at the first receiving position is smaller than the first receiving power. Tx =P T -P0+P Los The transmission power is determined using the following equation: Tx is the transmission power, and P T is the first received power, P0 is a predetermined power, and P Los is the free space loss of radio waves propagating from the flight position of the flying body 100 indicated by the flight position information to the receiving position. The determination unit 206 determines the transmission power, for example, so that the received power when the radio waves transmitted by the SL antenna 140 are received at the first receiving position is the first received power.

[0109] For example, when there are multiple neighboring cells of the cell, the determination unit 206 determines the transmission power further based on second reception position information indicating a second reception position where radio waves transmitted by the one radio base station and radio waves transmitted by another neighboring radio base station adjacent to the one radio base station are received at the same second reception power, and second reception power information indicating the second reception power. For example, the determination unit 206 determines the transmission power so that the reception power when the radio waves transmitted by the SL antenna 140 are received at the first reception position and the reception power when the radio waves transmitted by the SL antenna 140 are received at the second reception position satisfy the reception power condition.

[0110] For example, when the operation information indicates that the wireless communication function of the one wireless base station and the wireless communication function of another wireless base station among the plurality of wireless base stations are not operating normally, the determination unit 206 determines the transmission power further based on third reception position information indicating a third reception position where radio waves transmitted by the other wireless base station and radio waves transmitted by another adjacent wireless base station adjacent to the other wireless base station among the plurality of wireless base stations are received at the same third reception power, and third reception power information indicating the third reception power. For example, the determination unit 206 determines the transmission power so that the reception power when the radio waves transmitted from the SL antenna 140 are received at the first reception position and the reception power when the radio waves transmitted from the SL antenna 140 are received at the third reception position satisfy the reception power condition.

[0111] The other radio base station is, for example, a neighboring radio base station adjacent to the one radio base station, but may also be a radio base station that is not adjacent to the one radio base station.

[0112] The determination unit 206 determines, for example, the flight path of the flying object 100. The determination unit 206 determines the flight path of the flying object 100 based on, for example, gateway installation position information of the gateway 30.

[0113] The determination unit 206 determines the flight path of the aircraft 100 so that, for example, while the aircraft 100 is flying above the cell, the aircraft 100 can establish a feeder link 122 with the gateway 30 by transmitting radio waves using the FL antenna 120. Note that the airspace above the cell includes the airspace above the installation location of the one wireless base station.

[0114] The determination unit 206 determines the flight path of the aircraft 100, for example, further based on the coverage area information of the cell. The determination unit 206 determines the flight path of the aircraft 100, for example, so that the wireless communication area formed by the aircraft 100 better covers the coverage area of ​​the cell indicated by the coverage area information of the cell.

[0115] The control unit 208 controls the air vehicle 100. The control unit 208 controls the air vehicle 100, for example, by generating an air vehicle control signal.

[0116] The control unit 208 generates an air vehicle control signal based on, for example, various information stored in the storage unit 202. The control unit 208 generates an air vehicle control signal based on, for example, various information acquired by the acquisition unit 204.

[0117] The control unit 208 controls, for example, the flight of the air vehicle 100. When the control unit 208 controls the flight of the air vehicle 100, the air vehicle control signal includes a flight control signal that controls the flight of the air vehicle 100.

[0118] The flight control signals include, for example, a flight speed control signal that controls the flight speed of the air vehicle 100. The flight control signals include, for example, a flight direction control signal that controls the flight direction of the air vehicle 100. The flight control signals include, for example, a flight altitude control signal that controls the flight altitude of the air vehicle 100. The flight control signals include, for example, a flight attitude control signal that controls the flight attitude of the air vehicle 100.

[0119] For example, the control unit 208 controls the flight of the flying object 100 so that the flying object 100 flies above a cell formed by one of the plurality of wireless base stations whose wireless communication function is not operating normally, based on coverage area information of the cell when the wireless communication function was operating normally. For example, the control unit 208 controls the flight of the flying object 100 so that the flying object 100 flies above the cell according to the flight path of the flying object 100 determined by the determination unit 206.

[0120] For example, when there are multiple radio base stations among the multiple radio base stations whose wireless communication functions are not operating normally, the control unit 208 controls the flight of the flying object 100 so that each of the multiple radio base stations whose wireless communication functions are not operating normally flies over one of the cells that the radio base station formed when the wireless communication function was operating normally.For example, when there are multiple radio base stations among the multiple radio base stations whose wireless communication functions are not operating normally, the control unit 208 controls the flight of the flying object 100 so that each of the multiple radio base stations whose wireless communication functions are not operating normally flies over multiple of the cells that the radio base station formed when the wireless communication function was operating normally.

[0121] The control unit 208 controls, for example, the FL antenna 120 mounted on the flying object 100. When the control unit 208 controls the FL antenna 120, the flying object control signal includes an FL antenna control signal that controls the FL antenna 120.

[0122] The FL antenna control signal includes, for example, a transmission power control signal that controls the transmission power of the radio waves transmitted by the FL antenna 120. The FL antenna control signal includes, for example, a frequency control signal that controls the frequency of the radio waves transmitted by the FL antenna 120. The FL antenna control signal includes, for example, a wavelength control signal that controls the wavelength of the radio waves transmitted by the FL antenna 120.

[0123] The control unit 208 controls the FL antenna 120, for example, to establish a feeder link 122 between the aircraft 100 and the gateway 30. The control unit 208 controls the FL antenna 120, for example, to establish a feeder link 122 between the aircraft 100 and the gateway 30 while the aircraft 100 is flying above the cell.

[0124] The control unit 208 controls, for example, the SL antenna 140 mounted on the aircraft 100. When the control unit 208 controls the SL antenna 140, the aircraft control signal includes an SL antenna control signal that controls the SL antenna 140.

[0125] The SL antenna control signal includes, for example, a transmission power control signal that controls the transmission power of the radio waves transmitted by the SL antenna 140. The SL antenna control signal includes, for example, a frequency control signal that controls the frequency of the radio waves transmitted by the SL antenna 140. The SL antenna control signal includes, for example, a wavelength control signal that controls the wavelength of the radio waves transmitted by the SL antenna 140.

[0126] The control unit 208 controls the SL antenna 140, for example, to form the wireless communication area 142. The control unit 208 controls the SL antenna 140, for example, to form the wireless communication area 142 by transmitting radio waves with the transmission power determined by the determination unit 206. The control unit 208 controls the SL antenna 140, for example, to form the wireless communication area 142 by transmitting radio waves with the same frequency and transmission power as the frequency indicated by the frequency information of the one wireless base station. The control unit 208 controls the SL antenna 140, for example, to form the wireless communication area 142 by transmitting radio waves with the same wavelength and transmission power as the wavelength indicated by the wavelength number information of the one wireless base station.

[0127] The transmitting unit 210 transmits various types of information. For example, the transmitting unit 210 transmits various types of information stored in the storage unit 202. For example, the transmitting unit 210 transmits various types of information acquired by the acquiring unit 204.

[0128] The transmitting unit 210 transmits various types of information via, for example, the network 20. The transmitting unit 210 transmits various types of information via, for example, the network 20 and the gateway 30.

[0129] The transmitting unit 210 transmits, for example, various types of information to the flying object 100. The transmitting unit 210 transmits, for example, an flying object control signal generated by the control unit 208 to the flying object 100.

[0130] The transmitter 210 transmits various types of information to the control device 500, for example. The transmitter 210 transmits flight position information of the flying object 100 to the control device 500, for example. The transmitter 210 transmits coverage area information of a cell formed by one of the multiple wireless base stations, whose wireless communication function is not operating normally, when the wireless communication function was operating normally, to the control device 500, for example. The transmitter 210 transmits transmission power information, determined by the determination unit 206, indicating the transmission power of radio waves transmitted by the SL antenna 140, to the control device 500. The transmitter 210 transmits flight path information, determined by the determination unit 206, indicating the flight path of the flying object 100, to the control device 500, for example. The transmitter 210 transmits frequency information of the one wireless base station to the control device 500, for example. The transmitter 210 transmits wavelength information of the one wireless base station to the control device 500, for example.

[0131] 8 shows an example of the functional configuration of the control device 500. The control device 500 includes a storage unit 502, a receiving unit 504, a control unit 506, and a transmitting unit 508. Note that it is not essential that the control device 500 includes all of these components.

[0132] The storage unit 502 stores various types of information. For example, the storage unit 502 stores gateway installation location information of the gateway 30. For example, the storage unit 502 stores wireless base station installation location information of each wireless base station of a plurality of wireless base stations installed on the ground.

[0133] The receiving unit 504 receives various types of information. The receiving unit 504 receives the various types of information, for example, via the network 20. The receiving unit 504 receives the various types of information, for example, via the network 20 and the gateway 30. The receiving unit 504 may store the received various types of information in the storage unit 502.

[0134] The receiving unit 504 receives various information from, for example, the flying object 100. The receiving unit 504 receives, from, for example, the flying object 100, flight position information of the flying object 100.

[0135] The receiving unit 504 receives various information from, for example, the information processing device 200. The receiving unit 504 receives, for example, flight position information of the flying object 100 from the information processing device 200. The receiving unit 504 receives, for example, coverage area information of a cell formed by a wireless base station whose wireless communication function is not operating normally when the wireless communication function was operating normally from the information processing device 200. The receiving unit 504 receives, for example, transmission power information of the SL antenna 140 mounted on the flying object 100 from the information processing device 200. The receiving unit 504 receives, for example, flight path information of the flying object 100 from the information processing device 200. The receiving unit 504 receives, for example, frequency information of the wireless base station from the information processing device 200. The receiving unit 504 receives, for example, wavelength information of the wireless base station from the information processing device 200.

[0136] The control unit 506 controls the air vehicle 100. The control unit 506 controls the air vehicle 100, for example, by generating an air vehicle control signal.

[0137] The control unit 506 generates an air vehicle control signal based on, for example, various information stored in the storage unit 502. The control unit 506 generates an air vehicle control signal based on, for example, various information received by the receiving unit 504.

[0138] The control unit 506, for example, controls the flight of the air vehicle 100. When the control unit 506 controls the flight of the air vehicle 100, the air vehicle control signal includes a flight control signal.

[0139] For example, the control unit 506 controls the flight of the aircraft 100 so that the aircraft 100 flies over a cell based on coverage area information of the cell that a wireless base station whose wireless communication function is not operating normally formed when the wireless communication function was operating normally. For example, the control unit 506 controls the flight of the aircraft 100 so that the aircraft 100 flies over the cell according to the flight path of the aircraft 100 indicated by the flight path information of the aircraft 100.

[0140] The control unit 506 controls, for example, the FL antenna 120 mounted on the flying object 100. When the control unit 506 controls the FL antenna 120, the flying object control signal includes an FL antenna control signal.

[0141] The control unit 506 controls the FL antenna 120, for example, to establish the feeder link 122 between the aircraft 100 and the gateway 30. The control unit 506 controls the FL antenna 120, for example, to establish the feeder link 122 between the aircraft 100 and the gateway 30 while the aircraft 100 is flying above the cell.

[0142] The control unit 506 controls, for example, the SL antenna 140 mounted on the aircraft 100. When the control unit 506 controls the SL antenna 140, the aircraft control signal includes an SL antenna control signal.

[0143] The control unit 506 controls the SL antenna 140, for example, to form the wireless communication area 142. The control unit 506 controls the SL antenna 140, for example, to form the wireless communication area 142 by transmitting radio waves with a transmission power indicated by the transmission power information received by the receiving unit 504. The control unit 506 controls the SL antenna 140, for example, to form the wireless communication area 142 by transmitting radio waves with the same frequency and transmission power as the frequency indicated by the frequency information received by the receiving unit 504. The control unit 506 controls the SL antenna 140, for example, to form the wireless communication area 142 by transmitting radio waves with the same wavelength and transmission power as the wavelength indicated by the wavelength information received by the receiving unit 504.

[0144] The transmitting unit 508 transmits various types of information. For example, the transmitting unit 508 transmits various types of information stored in the storage unit 502. For example, the transmitting unit 508 transmits various types of information received by the receiving unit 504.

[0145] The transmitting unit 508 transmits various types of information via, for example, the network 20. The transmitting unit 508 transmits various types of information via, for example, the network 20 and the gateway 30.

[0146] The transmitting unit 508 transmits, for example, various types of information to the flying object 100. The transmitting unit 508 transmits, for example, an flying object control signal generated by the control unit 506 to the flying object 100.

[0147] The transmitting unit 508 transmits, for example, various types of information to the information processing device 200. The transmitting unit 508 transmits, for example, flight position information of the flying object 100 to the information processing device 200.

[0148] 9 is an explanatory diagram illustrating an example of a processing flow of the information processing device 200. Here, the description will be given assuming that the information processing device 200 is in a starting state in which it has not yet acquired operation information of each of a plurality of radio base stations installed on the ground.

[0149] In step (sometimes abbreviated as S) 102, the acquisition unit 204 determines flight position information of the flying object 100. In S104, the acquisition unit 204 acquires operation information of each wireless base station.

[0150] In S106, the determination unit 206 determines whether or not there is an area in which the wireless communication service is unavailable for a predetermined period of time, based on the operation information of each wireless base station acquired by the acquisition unit 204 in S104. For example, the determination unit 206 determines that there is an area in which the wireless communication service is unavailable if, during that period, the wireless base station whose wireless communication function is not operating normally does not have the flying object 100 form a wireless communication area 142 in the coverage area of ​​the cell that was formed when the wireless communication function was operating normally.

[0151] If the determination unit 206 determines that there is an area where the wireless communication service cannot be used during the period, the process proceeds to S108. If the determination unit 206 determines that there is no area where the wireless communication service cannot be used during the period, the process proceeds to S114.

[0152] In S108, the control unit 208 controls the flight of the air vehicle 100 so that it flies over an area where wireless communication services are unavailable. If there are multiple areas where wireless communication services are unavailable, the control unit 208 may control the flight of one air vehicle 100 or may control the flights of multiple air vehicles 100 so that it flies over multiple areas where wireless communication services are unavailable.

[0153] In S110, the determination unit 206 determines the transmission power of radio waves to be transmitted by the SL antenna 140 mounted on the flying object 100 flying above an area where wireless communication services are unavailable. The determination unit 206 determines the transmission power based on, for example, flight position information of the flying object 100, reception position information indicating a reception position where radio waves transmitted by a wireless base station that formed a cell in the area where wireless communication services are unavailable and radio waves transmitted by an adjacent wireless base station that forms an adjacent cell adjacent to the cell are received with the same reception power when the wireless communication function is operating normally, and reception power information indicating the reception power. The determination unit 206 determines the transmission power, for example, so that the reception power when the radio waves transmitted by the SL antenna 140 are received at the reception position indicated by the reception position information satisfies a predetermined reception power condition.

[0154] In S112, the control unit 208 controls the SL antenna 140 to transmit radio waves at the transmission power determined in S110 by the determination unit 206. The SL antenna 140 transmits radio waves in accordance with the control of the control unit 208, thereby forming a wireless communication area 142 in an area where wireless communication services are unavailable.

[0155] In S114, if the acquisition unit 204 has not acquired an end instruction to end the processing of the information processing device 200, the process returns to S102. On the other hand, if the acquisition unit 204 has acquired an end instruction in S114, the processing of the information processing device 200 ends.

[0156] 10 schematically illustrates an example of the hardware configuration of a computer 1200 that functions as the information processing device 200 or the control device 500. A program installed on the computer 1200 can cause the computer 1200 to function as one or more "units" of the device according to the present embodiment, or can cause the computer 1200 to perform operations associated with the device according to the present embodiment or one or more "units," and / or can cause the computer 1200 to perform a process according to the present embodiment or steps of the process. Such a program can be executed by the CPU 1212 to cause the computer 1200 to perform specific operations associated with some or all of the blocks in the flowcharts and block diagrams described herein.

[0157] The computer 1200 according to this embodiment includes a CPU 1212, a RAM 1214, and a graphics controller 1216, which are interconnected by a host controller 1210. The computer 1200 also includes input / output units such as a communications interface 1222, a storage device 1224, a DVD drive 1226, and an IC card drive, which are connected to the host controller 1210 via an input / output controller 1220. The DVD drive 1226 may be a DVD-ROM drive, a DVD-RAM drive, or the like. The storage device 1224 may be a hard disk drive, a solid-state drive, or the like. The computer 1200 also includes a ROM 1230 and legacy input / output units such as a keyboard, which are connected to the input / output controller 1220 via an input / output chip 1240.

[0158] The CPU 1212 operates according to programs stored in the ROM 1230 and the RAM 1214, thereby controlling each unit. The graphics controller 1216 acquires image data generated by the CPU 1212 into a frame buffer or the like provided in the RAM 1214 or into the graphics controller itself, and causes the image data to be displayed on the display device 1218.

[0159] The communication interface 1222 communicates with other electronic devices via a network. The storage device 1224 stores programs and data used by the CPU 1212 in the computer 1200. The DVD drive 1226 reads programs or data from a DVD-ROM 1227 or the like and provides them to the storage device 1224. The IC card drive reads programs and data from an IC card and / or writes programs and data to an IC card.

[0160] The ROM 1230 stores therein a boot program or the like that is executed by the computer 1200 upon activation, and / or programs that depend on the hardware of the computer 1200. The input / output chip 1240 may also connect various input / output units to the input / output controller 1220 via a USB port, a parallel port, a serial port, a keyboard port, a mouse port, etc.

[0161] The programs are provided by a computer-readable storage medium such as a DVD-ROM 1227 or an IC card. The programs are read from the computer-readable storage medium, installed in the storage device 1224, RAM 1214, or ROM 1230, which are also examples of computer-readable storage media, and executed by the CPU 1212. Information processing described in these programs is read by the computer 1200, and causes cooperation between the programs and the various types of hardware resources described above. An apparatus or method may be configured by implementing operations or processing of information in accordance with the use of the computer 1200.

[0162] For example, when communication is performed between the computer 1200 and an external device, the CPU 1212 may execute a communication program loaded into the RAM 1214 and instruct the communication interface 1222 to perform communication processing based on the processing described in the communication program. Under the control of the CPU 1212, the communication interface 1222 reads transmission data stored in a transmission buffer area provided in the RAM 1214, the storage device 1224, the DVD-ROM 1227, or a recording medium such as an IC card, and transmits the read transmission data to the network, or writes reception data received from the network to a reception buffer area or the like provided on the recording medium.

[0163] Furthermore, the CPU 1212 may cause all or a necessary portion of a file or database stored in an external recording medium such as the storage device 1224, the DVD drive 1226 (DVD-ROM 1227), an IC card, etc. to be read into the RAM 1214, and may perform various types of processing on the data on the RAM 1214. The CPU 1212 may then write back the processed data to the external recording medium.

[0164] Various types of information, such as various types of programs, data, tables, and databases, may be stored on the recording medium and may undergo information processing. The CPU 1212 may perform various types of processing on data read from the RAM 1214, including various types of operations, information processing, conditional judgment, conditional branching, unconditional branching, information search / replacement, etc., as described throughout this disclosure and specified by the instruction sequences of the programs, and write the results back to the RAM 1214. The CPU 1212 may also search for information in a file, database, etc. on the recording medium. For example, if multiple entries, each having an attribute value of a first attribute associated with an attribute value of a second attribute, are stored on the recording medium, the CPU 1212 may search for an entry whose attribute value of the first attribute matches a specified condition from among the multiple entries, read the attribute value of the second attribute stored in the entry, and thereby obtain the attribute value of the second attribute associated with the first attribute that satisfies a predetermined condition.

[0165] The above-described programs or software modules may be stored in a computer-readable storage medium on or near the computer 1200. A recording medium such as a hard disk or RAM provided in a server system connected to a dedicated communication network or the Internet can also be used as a computer-readable storage medium, thereby providing the programs to the computer 1200 via the network.

[0166] The blocks in the flowcharts and block diagrams in the present embodiments may represent stages of a process in which an operation is performed or "parts" of an apparatus responsible for performing the operation. Particular stages and "parts" may be implemented by dedicated circuitry, programmable circuitry provided with computer-readable instructions stored on a computer-readable storage medium, and / or a processor provided with computer-readable instructions stored on a computer-readable storage medium. The dedicated circuitry may include digital and / or analog hardware circuits, including integrated circuits (ICs) and / or discrete circuits. The programmable circuitry may include reconfigurable hardware circuits, such as field programmable gate arrays (FPGAs) and programmable logic arrays (PLAs), including AND, OR, XOR, NAND, NOR, and other logical operations, flip-flops, registers, and memory elements.

[0167] A computer-readable medium may include any tangible device capable of storing instructions that are executed by a suitable device, such that the computer-readable medium having instructions stored thereon comprises an article of manufacture containing instructions that can be executed to create means for performing the operations specified in the flowcharts or block diagrams. Examples of computer-readable media may include electronic, magnetic, optical, electromagnetic, and semiconductor storage media. More specific examples of computer-readable media may include floppy disks, diskettes, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), electrically erasable programmable read-only memory (EEPROM), static random access memory (SRAM), compact disc read-only memory (CD-ROM), digital versatile disc (DVD), Blu-ray disc, memory stick, integrated circuit card, and the like.

[0168] The computer readable instructions may include either assembler instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state-setting data, or source or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk®, JAVA®, C++, etc., and conventional procedural programming languages ​​such as the “C” programming language or similar programming languages.

[0169] The computer-readable instructions may be provided to a processor or programmable circuit of a programmable data processing device, such as a computer, locally or via a wide area network (WAN) such as a local area network (LAN) or the Internet, and the computer-readable instructions may be executed to create means for performing the operations specified in the flowcharts or block diagrams. Here, the computer may be a personal computer (PC), a tablet computer, a smartphone, a workstation, a server computer, a general-purpose computer, a special-purpose computer, or the like, or may be a computer system in which multiple computers are connected. Such a computer system in which multiple computers are connected is also called a distributed computing system, and is a broad definition of computer. In a distributed computing system, the multiple computers collectively execute a program by each executing a portion of the program and passing data between the computers as needed during program execution.

[0170] Examples of processors include a computer processor, a central processing unit (CPU), a processing unit, a microprocessor, a digital signal processor, a controller, a microcontroller, etc. A computer may have one or more processors. In a multiprocessor system with multiple processors, each processor executes a portion of a program and passes data between processors as needed during program execution, allowing the multiple processors to collectively execute the program. For example, in multitasking, each of the multiple processors may execute a portion of each task in small chunks by switching tasks at time slice intervals. In this case, which portion of a program each processor executes changes dynamically. Which portion of a program each of the multiple processors executes may also be statically determined by multiprocessor-aware programming.

[0171] Although the present invention has been described above using embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various modifications and improvements can be made to the above embodiments. It is clear from the claims that such modifications and improvements can also be included within the technical scope of the present invention.

[0172] It should be noted that the execution order of each process, such as operations, procedures, steps, and stages, in the devices, systems, programs, and methods shown in the claims, specifications, and drawings is not specifically stated as "before," "prior to," etc., and that the processes can be performed in any order unless the output of a previous process is used in a later process. Even if the operational flow in the claims, specifications, and drawings is described using "first," "next," etc. for convenience, this does not mean that the processes must be performed in this order. [Explanation of symbols]

[0173] 10 system, 20 network, 30 gateway, 100 aircraft, 120 FL antenna, 122 feeder link, 140 SL antenna, 142 wireless communication area, 150 accommodation unit, 200 information processing device, 202 storage unit, 204 acquisition unit, 206 determination unit, 208 control unit, 210 transmission unit, 310 wireless base station, 312 cell, 315 receiving position, 318 receiving position, 320 wireless base station, 322 cell, 325 receiving position, 330 wireless base station, 332 cell, 340 wireless base station, 342 cell, 345 receiving position, 350 wireless base station, 352 cell, 355 receiving position, 360 wireless base station, 362 cell, 400 communication terminal, 500 control device, 502 storage unit, 504 receiving unit, 506 Control unit, 508 transmission unit, 1200 computer, 1210 host controller, 1212 CPU, 1214 RAM, 1216 graphic controller, 1218 display device, 1220 input / output controller, 1222 communication interface, 1224 storage device, 1226 DVD drive, 1227 DVD-ROM, 1230 ROM, 1240 input / output chip

Claims

1. a storage unit that stores first reception position information indicating a first reception position where a radio wave transmitted by one radio base station among a plurality of radio base stations installed on the ground and a radio wave transmitted by an adjacent radio base station adjacent to the one radio base station among the plurality of radio base stations are received with the same first reception power, in association with first reception power information indicating the first reception power; an acquisition unit that acquires operation information indicating whether a wireless communication function of each of the plurality of wireless base stations is operating normally and flight position information indicating a flight position of an aircraft that forms a wireless communication area by transmitting radio waves using an SL (Service Link) antenna; a determination unit that, when the operation information indicates that the wireless communication function of the one wireless base station is not operating normally, determines a transmission power of the radio wave transmitted by the SL antenna based on the flight position information of the aircraft flying above a cell formed by the one wireless base station when the wireless communication function was operating normally, the first reception position information, and the first reception power information, so that the reception power of the radio wave transmitted by the SL antenna when received at the first reception position indicated by the first reception position information satisfies a predetermined reception power condition; An information processing device comprising:

2. 2. The information processing device according to claim 1, wherein the determination unit determines the transmission power so that the received power when the radio waves transmitted by the SL antenna are received at the first receiving position is equal to or less than the first received power indicated by the first received power information.

3. The determination unit is P Ｔｘ =P Ｔ -P ０ +P Ｌｏｓ Determine the transmit power using Ｔｘ is the transmission power, and P Ｔ is the first received power, and P ０ is a predetermined power, and P Ｌｏｓ is the free space loss of radio waves propagating from the flight position of the aircraft indicated by the flight position information to the first receiving position, The information processing device according to claim 2 .

4. 3. The information processing device according to claim 2, wherein the determination unit determines the transmission power so that the reception power when the radio waves transmitted by the SL antenna are received at the first reception position is the first reception power indicated by the first reception power information.

5. the storage unit further stores gateway installation position information indicating an installation position of a gateway installed on the ground; The determination unit further determines a flight path of the aircraft based on the gateway installation location information so that the aircraft can establish a feeder link between the aircraft and the gateway by transmitting radio waves using an FL (Feeder Link) antenna while the aircraft is flying above the cell formed by the one wireless base station when the wireless communication function was operating normally. The information processing device according to claim 1 .

6. the storage unit further stores coverage area information indicating a coverage area of ​​a cell formed by each of the plurality of radio base stations; The information processing device described in claim 5, wherein the determination unit determines the flight path of the aircraft so that the wireless communication area covers more of the coverage area of ​​the cell formed by the one wireless base station when the wireless communication function was operating normally, as indicated by the coverage area information.

7. the storage unit further stores frequency information indicating a frequency of a radio wave transmitted by each of the plurality of radio base stations; The information processing device includes: a control unit that controls the SL antenna so as to form the wireless communication area by transmitting radio waves having the same frequency as the frequency indicated by the frequency information of the one wireless base station and the transmission power. The information processing device according to claim 1 , further comprising:

8. the storage unit further stores second reception position information indicating a second reception position where radio waves transmitted by the one radio base station and radio waves transmitted by another adjacent radio base station adjacent to the one radio base station among the plurality of radio base stations are received with the same second reception power, in association with second reception power information indicating the second reception power; the determiner determines the transmission power based on the second reception position information and the second reception power information so that the reception power when the radio wave transmitted by the SL antenna is received at the second reception position indicated by the second reception position information further satisfies the reception power condition. The information processing device according to claim 1 .

9. the storage unit further stores third reception position information indicating a third reception position where a radio wave transmitted by another radio base station among the plurality of radio base stations and a radio wave transmitted by another adjacent radio base station among the plurality of radio base stations adjacent to the other radio base station are received with the same third reception power, in association with third reception power information indicating the third reception power; When the operation information indicates that the wireless communication function of the one wireless base station and the wireless communication function of the other wireless base station are not operating normally, the determination unit determines the transmission power further based on the third reception position information and the third reception power information so that the reception power when the radio wave transmitted by the SL antenna is received at the third reception position indicated by the third reception position information further satisfies the reception power condition. The information processing device according to claim 1 .

10. The information processing device according to claim 1 , wherein the information processing device is mounted on the flying object.

11. 1. An information processing method executed by a computer, which stores reception position information indicating a reception position where a radio wave transmitted by one radio base station among a plurality of radio base stations installed on the ground and a radio wave transmitted by an adjacent radio base station adjacent to the one radio base station among the plurality of radio base stations are received with the same reception power, in association with reception power information indicating the reception power, the method comprising: an acquisition step of acquiring operation information indicating whether the wireless communication function of each of the plurality of wireless base stations is operating normally and flight position information indicating the flight position of an aircraft that forms a wireless communication area by transmitting radio waves using an SL antenna; a determination step of determining, when the operation information indicates that the wireless communication function of the one wireless base station is not operating normally, a transmission power of the radio wave transmitted by the SL antenna based on the flight position information of the flying object flying above a cell formed by the one wireless base station when the wireless communication function was operating normally, the reception position information, and the reception power information, so that the reception power when the radio wave transmitted by the SL antenna is received at the reception position indicated by the reception position information satisfies a predetermined reception power condition; An information processing method comprising:

12. A program for causing a computer to execute the information processing method according to claim 11.

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