Information processing device, program, information processing system, and information processing method

Abstract

An information processing device, an information processing system, an information processing method, and a program are provided that can effectively relieve a disaster-stricken area using an aircraft. [Solution] The information processing device 200 comprises a storage unit 202 that stores SL antenna performance information of the SL antenna, which is a collinear antenna, and aircraft performance information of an aircraft equipped with an SL antenna so that the horizontal polarization is omnidirectional, an acquisition unit 204 that acquires target area information for the wireless communication service provided by the aircraft, a simulation unit 206 that simulates the SL wireless communication area formed by the SL beam irradiated by the SL antenna while the aircraft is in a circular flight based on the SL antenna performance information and the aircraft performance information, and a determination unit 208 that determines the trajectory of the aircraft so that the target area for the service is included in the SL wireless communication area while the aircraft is in a circular flight based on the target area information for the wireless communication service and the results of simulating the SL wireless communication area.

Description

[Technical field]

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

[0002] Patent Document 1 describes an unmanned aerial vehicle having base station functions for a wireless communication network. [Prior art document] [Patent documents] [Patent Document 1] JP 2023-105204 A Summary of the Invention [Means for solving the problem]

[0003] According to an embodiment of the present invention, an information processing device is provided. The information processing device may include a storage unit that stores SL antenna performance information indicating the performance of an SL (Service Link) antenna, which is a collinear antenna, and aircraft performance information indicating the performance of an aircraft equipped with the SL antenna so that horizontally polarized waves are omnidirectional. The information processing device may include an acquisition unit that acquires provision target area information indicating a provision target area of ​​a wireless communication service provided by the aircraft. The information processing device may include a simulation unit that simulates an SL wireless communication area formed by an SL beam irradiated by the SL antenna while the aircraft is flying in a circle, based on the SL antenna performance information and the aircraft performance information. The information processing device may include a determination unit that determines a trajectory of the aircraft so that the provision target area is included in the SL wireless communication area while the aircraft is flying in a circle, based on the provision target area information and a simulation result obtained by simulating the SL wireless communication area by the simulation unit.

[0004] In the information processing device, the simulation unit may simulate the SL wireless communication area formed by the SL beam while the aircraft is flying in a circular orbit, and the determination unit may determine the position of the center of the circular orbit of the aircraft so that the target area is included in the SL wireless communication area while the aircraft is flying in a circular orbit.

[0005] In any of the information processing devices, the storage unit may store the SL antenna performance information including SL antenna gain information indicating the antenna gain of the SL antenna, and the simulation unit may simulate the SL wireless communication area formed by the SL beam while the aircraft is flying in a circular orbit by deriving inner and outer diameters of the footprint of the SL wireless communication area based on the SL antenna gain information.

[0006] In any of the information processing devices, the simulation unit may simulate the SL wireless communication area formed by the SL beam while the aircraft is flying in a circular orbit when the flight altitude of the aircraft is each of a plurality of flight altitudes, and the determination unit may determine the flight altitude of the aircraft so that the target area to be provided is included in the SL wireless communication area while the aircraft is flying in a circular orbit.

[0007] In any of the information processing devices, the storage unit may store the aircraft performance information including minimum flight speed information indicating a minimum flight speed of the aircraft when it is flying in a circle, and permissible bank angle information indicating a permissible bank angle of the aircraft when it is flying in a circle, and the simulation unit may simulate the SL wireless communication area formed by the SL beam while the aircraft is flying in a circle when the flight speed of the aircraft is each of a plurality of flight speeds that are equal to or higher than the minimum flight speed indicated by the minimum flight speed information, by deriving a radius of the circular orbit of the aircraft when the bank angle of the aircraft is smaller than the permissible bank angle indicated by the permissible bank angle information, and the determination unit may determine the flight speed of the aircraft and the radius of the circular orbit of the aircraft so that the provision target area is included in the SL wireless communication area while the aircraft is flying in a circle.

[0008] In any of the information processing devices, the acquisition unit may acquire the provision target area information indicating the provision target areas in two different locations, and the determination unit may determine the trajectory of the aircraft so that the two provision target areas in two different locations are included in the SL wireless communication area while the aircraft is flying in a circle.

[0009] In any of the information processing devices, the storage unit may further store FL antenna performance information indicating the performance of an FL (Feeder Link) antenna, which is a collinear antenna, and installation position information indicating the installation position of a gateway installed on the ground, and the simulation unit may further simulate, based on the FL antenna performance information and the aircraft performance information, an FL wireless communication area formed by an FL beam irradiated by the FL antenna while the aircraft equipped with the FL antenna is flying in a circle so that the horizontal polarization is omnidirectional, and the determination unit may determine, based further on the installation position information and a simulation result in which the simulation unit simulates the FL wireless communication area, the trajectory of the aircraft so that the target area is included in the SL wireless communication area and the installation position of the gateway is included in the FL wireless communication area while the aircraft is flying in a circle.

[0010] Any of the information processing devices may further include a control unit that controls the flying object so that the flying object makes a circular flight along the trajectory determined by the determination unit.

[0011] In any of the information processing devices, the acquisition unit may acquire the provision target area information indicating the provision target area which is a disaster-stricken area that has been affected by a disaster.

[0012] According to one embodiment of the present invention, there is provided a program that, when executed by a computer, causes the computer to function as any one of the information processing devices described above.

[0013] According to one embodiment of the present invention, there is provided an information processing system. The information processing system may include any one of the information processing devices. The information processing system may include the flying object.

[0014] According to one embodiment of the present invention, there is provided an information processing method executed by a computer. The information processing method may include an acquisition step of acquiring service target area information indicating a service target area of ​​a wireless communication service provided by an aircraft equipped with an SL antenna such that the horizontally polarized waves of the SL antenna, which is a collinear antenna, are omnidirectional. The information processing method may include a simulation step of simulating an SL wireless communication area formed by an SL beam irradiated by the SL antenna while the aircraft is flying in a circle, based on SL antenna performance information indicating the performance of the SL antenna and aircraft performance information indicating the performance of the aircraft, both stored in the computer. The information processing method may include a determination step of determining a trajectory of the aircraft such that the service target area is included in the SL wireless communication area while the aircraft is flying in a circle, based on the service target area information and a simulation result of simulating the SL wireless communication area in the simulation step.

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

[0016] [Figure 1] An example of a system 10 is shown diagrammatically. [Diagram 2] 2 is an explanatory diagram for explaining an example of the performance of an antenna mounted on the aircraft 100. FIG. [Diagram 3] 2 is an explanatory diagram for explaining an example of a method for mounting an antenna on an aircraft 100. FIG. [Figure 4] 1 is an explanatory diagram for explaining an example of a relationship between a mounting method for mounting an antenna on an aircraft 100 and the footprint. [Diagram 5] 2 is an explanatory diagram for explaining an example of a turning flight trajectory of the flying body 100. FIG. [Figure 6]1 is an explanatory diagram for explaining an example of aircraft performance information of the aircraft 100, recommended conditions for the aircraft 100 when conducting a demonstration experiment, and the relationship between the flight speed of the aircraft 100, the radius of the circular orbit, and the bank angle. [Figure 7] FIG. 11 is an explanatory diagram for explaining an example of a link budget condition. [Figure 8] 2 is an explanatory diagram for explaining an example of the relationship between the flight altitude of the flying body 100 and the footprint. FIG. [Figure 9] 2 is an explanatory diagram for explaining an example of the relationship between the radius of the circular orbit of the flying body 100 and the footprint. FIG. [Figure 10] 11 is an explanatory diagram for explaining an example of a simulation result obtained by simulating a link budget of a feeder link and an FL wireless communication area. FIG. [Figure 11] 11 is an explanatory diagram for explaining an example of a simulation result obtained by simulating a link budget of a service link and an SL wireless communication area. FIG. [Figure 12] 2 is an explanatory diagram for explaining an example of the relationship between the flight altitude and the radius of the circular orbit of the flying body 100 and the footprint. FIG. [Figure 13] 10 is an explanatory diagram for explaining an example of a decision item decided by the information processing device 200. FIG. [Figure 14] 2 illustrates an example of a functional configuration of an information processing device 200. [Figure 15] FIG. 2 is an explanatory diagram for explaining an example of a processing flow of the system 10. [Figure 16] An example of a hardware configuration of a computer 1200 functioning as the information processing device 200 is shown in schematic form. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] When a non-directional VH polarized dual-mode co-linear antenna, which is a general balloon communication antenna, is mounted on an aircraft such as a high-speed UAV (Unmanned Aerial Vehicle), the constant inclusion area, which is an area that is always included in the wireless communication area formed by the mounted antenna, is limited according to the antenna characteristics of the antenna mounted on the aircraft (the antenna mounted on the aircraft may be referred to as the "mounted antenna") and the flight route of the aircraft. In the system according to this embodiment, for example, the constant inclusion area is simulated from the antenna characteristics of the mounted antenna, the mounting method for mounting the mounted antenna on the aircraft, the flight characteristics such as the turning performance and flight speed of the aircraft, and the flight route such as the flight altitude and turning radius of the aircraft, and based on the simulation result of the constant inclusion area, the flight route of the aircraft for constructing an optimal wireless communication area in the disaster-stricken area is calculated, and a mechanism is adopted in which the aircraft is autonomously flown along the calculated flight route. This allows the disaster-stricken area to be effectively rescued using the aircraft.

[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. In addition, not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[0019] 1 illustrates an example of a system 10. The system 10 may include an aircraft 100 and an information processing device 200. The system 10 may further include a disaster information management device 400. The system 10 may be an example of an information processing system.

[0020] The air vehicle 100 may be any air vehicle capable of providing wireless communication services. The air vehicle 100 may be, for example, an unmanned aerial vehicle. The air vehicle 100 may be, for example, a drone. The air vehicle 100 may be, for example, an MQ-9B SeaGuardian (registered trademark) of General Atomics Aeronautical Systems. The air vehicle 100 may also be a manned aerial vehicle.

[0021] The flying object 100 is equipped with an SL antenna 120 and an FL antenna 140. The SL antenna 120 is, for example, a co-linear antenna. The FL antenna 140 is, for example, a co-linear antenna. The co-linear antennas used as the SL antenna 120 and the FL antenna 140 may be antennas mounted on a balloon base station. The performance of the antennas mounted on the flying object 100 and the details of the method of mounting the antennas on the flying object 100 will be described later.

[0022] The flying object 100 forms an SL wireless communication area 122 by, for example, irradiating an SL beam using the SL antenna 120, and provides wireless communication services to a communication terminal 300 within the SL wireless communication area 122. The flying object 100 establishes a service link between the flying object 100 and a communication terminal 300 within the SL wireless communication area 122 using, for example, the SL antenna 120.

[0023] The communication terminal 300 may be any communication terminal capable of establishing a service link with the air vehicle 100. For example, the communication terminal 300 may be a mobile phone such as a smartphone, a tablet terminal, a wearable terminal, or the like. The communication terminal 300 may be a PC (Personal Computer). The communication terminal 300 may be an IoT (Internet of Things) terminal. The communication terminal 300 may include anything that corresponds to the IoE (Internet of Everything).

[0024] The air vehicle 100 establishes a feeder link between the gateway 40 installed on the ground and the air vehicle 100, for example, by emitting an FL beam using the FL antenna 140. The air vehicle 100 may access the network 20 via the gateway 40.

[0025] The network 20 may include a core network provided by a telecommunications carrier. The core network may be compliant with, for example, a 5G (5th Generation) communication system. The core network may be compliant with a 6G (6th Generation) communication system or a mobile communication system after the 6G (6th Generation) communication system. The core network may be compliant with a 3G (3rd Generation) communication system. The core network may be compliant with an LTE (Long Term Evolution) communication system. The network 20 may include the Internet.

[0026] The flying object 100 communicates, for example, based on a communication control signal that controls the communication function of the flying object 100. The flying object 100 communicates, for example, based on a communication control signal received from an external device. The flying object 100 may generate a communication control signal and communicate based on the generated communication control signal.

[0027] The flying object 100, for example, forms an SL wireless communication area 122 in the service area 60 while flying in circles above the service area 60 in which the wireless communication service is provided by the flying object 100. The details of the circular flight of the flying object 100 will be described later.

[0028] The flying body 100 flies, for example, based on a flight control signal that controls the flight function of the flying body 100. The flying body 100 flies, for example, based on a flight control signal received from an external device. The flying body 100 may generate a flight control signal and fly based on the generated flight control signal. In this case, the flying body 100 may be an autonomous flying body that flies autonomously.

[0029] The information processing device 200 executes various information processing operations. For example, the information processing device 200 executes a determination process for determining the trajectory of the flying object 100.

[0030] The information processing device 200 determines the trajectory of the flying object 100 based on, for example, the provision target area information indicating the provision target area 60, the SL antenna performance information indicating the performance of the SL antenna 120, and the flying object performance information indicating the performance of the flying object 100. For example, the information processing device 200 simulates the SL wireless communication area 122 formed by the SL beam irradiated by the SL antenna 120 while the flying object 100 is flying in a circle based on the SL antenna performance information and the flying object performance information. After that, the information processing device 200 determines the trajectory of the flying object 100 based on the provision target area information and a simulation result of simulating the SL wireless communication area 122 so that the provision target area 60 is included in the SL wireless communication area 122 while the flying object is flying in a circle. Details of the information processing device 200 simulating the SL wireless communication area 122 will be described later.

[0031] The information processing device 200 determines the trajectory of the flying object 100, for example, based on FL antenna performance information indicating the performance of the FL antenna 140 and installation position information indicating the installation position of the gateway 40. For example, the information processing device 200 simulates an FL wireless communication area formed by an FL beam irradiated by the FL antenna 140 while the flying object 100 is flying in a circular flight based on the FL antenna performance information and the flying object performance information. After that, the information processing device 200 determines the trajectory of the flying object 100, based on the installation position information and a simulation result of simulating the FL wireless communication area, so that the service target region 60 is included in the SL wireless communication area 122 and the installation position of the gateway 40 is included in the FL wireless communication area while the flying object 100 is flying in a circular flight. Details of the information processing device 200 simulating the FL wireless communication area will be described later.

[0032] The information processing device 200 is installed, for example, on the ground. The information processing device 200 may be mounted on the flying object 100. In this case, the information processing device 200 and the flying object 100 may be one device, or the information processing device 200 and the flying object 100 may be two different devices.

[0033] The disaster information management device 400 manages disaster information related to an occurred disaster. The disaster is, for example, an earthquake. The disaster is, for example, a tsunami. The disaster is, for example, a typhoon. The disaster is, for example, a flood. The disaster is, for example, a high tide. The disaster is, for example, heavy rain. The disaster is, for example, heavy snow. The disaster is, for example, a landslide. The disaster is, for example, a volcanic eruption. The disaster may be any other natural disaster. The disaster may be a man-made disaster such as a fire.

[0034] The disaster information may include, for example, disaster area information indicating an area affected by a disaster. The disaster area may be an example of the provision target area 60.

[0035] The disaster information includes, for example, disaster type information indicating the type of disaster, disaster scale information indicating the scale of the disaster, and any other information related to the disaster that has occurred.

[0036] The information processing device 200 receives disaster information from the disaster information management device 400 via the network 20, for example. The information processing device 200 may execute various information processes based on the received disaster information. The disaster information may be an example of provision target area information.

[0037] 2 is an explanatory diagram for explaining an example of the performance of the antennas mounted on the aircraft 100. Here, an example of the performance of the FL antenna 140 and an example of the performance of the SL antenna 120 will be explained.

[0038] The upper diagram of Fig. 2 is an explanatory diagram for explaining an example of the FL antenna performance information and the SL antenna performance information. The FL antenna performance information and the SL antenna performance information shown in the upper diagram of Fig. 2 are as follows.

[0039] The frequency band of the FL antenna 140 is "3305 to 3325 MHz, 3375 to 3395 MHz (3.3 GHz band)." The antenna power of the FL antenna 140 is "1 W (30 dBm)." The antenna gain of the FL antenna 140 is "6 dBi or more." The antenna type of the FL antenna 140 is a "VH polarized dual-colinear antenna." The horizontal half width of the FL antenna 140 is "omnidirectional." The vertical half width of the FL antenna 140 is "approximately 19°." Note that the horizontal half width and vertical half width are values ​​when the antenna is perpendicular to the horizontal plane.

[0040] The frequency band of the SL antenna 120 is "1960 to 1980 MHz, 2150 to 2170 MHz (2 GHz band)." The antenna power of the SL antenna 120 is "10 W (40 dBm)" = "5 W x 2 waves." The antenna gain of the SL antenna 120 is "6 dBi or more." The antenna type of the SL antenna 120 is a "VH polarized shared collinear antenna." The horizontal plane half width of the SL antenna 120 is "omnidirectional." The vertical plane half width of the SL antenna 120 is "approximately 19°."

[0041] 2 is an explanatory diagram for explaining an example of the antenna pattern of FL antenna 140. When FL antenna 140 is perpendicular to the horizontal plane, the horizontally polarized waves of FL antenna 140 are omnidirectional as shown by the graph of the horizontally polarized waves of FL antenna 140, and the vertically polarized waves of FL antenna 140 have directionality as shown by the graph of the vertically polarized waves of FL antenna 140.

[0042] 2 is an explanatory diagram for explaining an example of the antenna pattern of SL antenna 120. When SL antenna 120 is perpendicular to the horizontal plane, the horizontally polarized waves of SL antenna 120 are omnidirectional, as shown by the graph of the horizontally polarized waves of SL antenna 120, and the vertically polarized waves of SL antenna 120 have directionality, as shown by the graph of the vertically polarized waves of SL antenna 120.

[0043] 3 is an explanatory diagram for explaining an example of a method for mounting an antenna on the flying object 100. Here, the method for mounting the SL antenna 120 on the flying object 100 will be mainly explained assuming that the time axis does not change.

[0044] 3 is an explanatory diagram for explaining an example of a case where the SL antenna 120 is mounted horizontally on the aircraft 100. When the SL antenna 120 is mounted horizontally on the aircraft 100, the SL antenna 120 is parallel to the horizontal plane.

[0045] When the SL antenna 120 is mounted horizontally on the aircraft 100, the horizontally polarized waves of the SL antenna 120 have directionality and the vertically polarized waves of the SL antenna 120 are omnidirectional. Therefore, as shown in the left diagram of Fig. 3, the shape of the footprint 124 of the SL wireless communication area 122 is rectangular. Here, the footprint is defined as the wireless communication area formed on a horizontal plane.

[0046] 3 is an explanatory diagram for explaining an example of a case where the SL antenna 120 is mounted vertically on the aircraft 100. When the SL antenna 120 is mounted vertically on the aircraft 100, the SL antenna 120 is perpendicular to the horizontal plane.

[0047] When the SL antenna 120 is mounted vertically on the aircraft 100, the horizontally polarized waves of the SL antenna 120 are omnidirectional and the vertically polarized waves of the SL antenna 120 are directional. Therefore, as shown in the right diagram of FIG. 3, the shape of the footprint 124 of the SL wireless communication area 122 is a circular ring shape.

[0048] 4 is an explanatory diagram for explaining an example of the relationship between the footprint and the mounting method of mounting an antenna on the flying object 100. Here, the case where the information processing device 200 simulates the footprint 124 when the SL antenna 120 is mounted horizontally on the flying object 100 and the footprint 124 when the SL antenna 120 is mounted vertically on the flying object 100, assuming that the flying object 100 is flying in a circular motion on an orbit 150, will be mainly explained.

[0049] The upper diagram of FIG. 4 is an explanatory diagram for explaining an example in which the information processing device 200 simulates the footprint 124 when the SL antenna 120 is mounted horizontally on the flying object 100. As described above, the shape of the footprint 124 when the SL antenna 120 is mounted horizontally on the flying object 100 is a rectangular shape. Therefore, as shown in the upper diagram of FIG. 4, the flying object 100 performs a turning flight, and the state in which the provision target area 60 is included in the footprint 124 changes to a state in which it is not included in the footprint 124. This means that when the SL antenna 120 is mounted horizontally on the flying object 100, there is no area that is always included in the SL wireless communication area 122 while the flying object 100 is performing a turning flight. Therefore, the information processing device 200 simulates that when the SL antenna 120 is mounted horizontally on the flying object 100, there is no area that is always communicable while the flying object 100 is performing a turning flight.

[0050] The lower diagram of FIG. 4 is an explanatory diagram for explaining an example in which the information processing device 200 simulates the footprint 124 when the SL antenna 120 is mounted vertically on the flying object 100. As described above, the shape of the footprint 124 when the SL antenna 120 is mounted vertically on the flying object 100 is a circular shape. Therefore, as shown in the lower diagram of FIG. 4, even if the flying object 100 makes a circular flight, the state in which the provided area 60 is included in the footprint 124 can be maintained. This means that when the SL antenna 120 is mounted vertically on the flying object 100, there is an area that is always included in the SL wireless communication area 122 while the flying object 100 is making a circular flight. Therefore, the information processing device 200 simulates that when the SL antenna 120 is mounted vertically on the flying object 100, there is always an area in which communication is possible while the flying object 100 is making a circular flight.

[0051] When the SL antenna 120 is mounted horizontally on the flying object 100, there is no area in which communication is possible while the flying object 100 is flying in a circle. In contrast, when the SL antenna 120 is mounted vertically on the flying object 100, there is always an area in which communication is possible while the flying object 100 is flying in a circle. From the above, the information processing device 200 decides to adopt "vertical mounting" as a mounting method for mounting the SL antenna 120 on the flying object 100 based on the simulation results, so that the horizontally polarized waves of the SL antenna 120 are omnidirectional. For the same reason as the reason for deciding to adopt "vertical mounting" as a mounting method for mounting the SL antenna 120 on the flying object 100, the information processing device 200 decides to adopt "vertical mounting" as a mounting method for mounting the FL antenna 140 on the flying object 100 based on the simulation results, so that the horizontally polarized waves of the FL antenna 140 are omnidirectional.

[0052] FIG. 5 is an explanatory diagram for explaining an example of a trajectory of the turning flight of the flying object 100. The flying object 100, for example, makes a turning flight on a circular orbit. The flying object 100, for example, makes a turning flight on a figure-of-eight orbit. The flying object 100, for example, makes a turning flight on a rectangular orbit. The flying object 100, for example, makes a turning flight on a D-shaped orbit. The flying object 100 may make a turning flight on an orbit of any other shape. Here, the circular orbit, the figure-of-eight orbit, the rectangular orbit, and the D-shaped orbit will be mainly described.

[0053] The "circular orbit" is mainly characterized by being a basic orbit and the radius of the circular orbit depending on the flight speed. The footprint formed when the aircraft 100 flies in a circular orbit changes depending on the flight altitude, flight speed, and radius of the circular orbit of the aircraft 100. Also, when the aircraft 100 flies in a circular orbit, the footprint can be formed without controlling the antenna.

[0054] The "figure-of-eight trajectory" is mainly characterized by combining two circular trajectories. The size of the footprint formed when the aircraft 100 makes a circular flight on the figure-of-eight trajectory is more than twice the size of the footprint formed when the aircraft 100 makes a circular flight on the figure-of-eight trajectory. In addition, when the aircraft 100 makes a circular flight on the figure-of-eight trajectory, it is necessary to control the antenna in order to form the footprint.

[0055] The "rectangular orbit" is mainly characterized by combining a circular orbit and a straight orbit. The size of the footprint formed when the aircraft 100 makes a circular flight on a rectangular orbit is more than twice the size of the footprint formed when the aircraft 100 makes a circular flight on a circular orbit. In addition, when the aircraft 100 makes a circular flight on a rectangular orbit, it is necessary to control the antenna in order to form the footprint.

[0056] The "D-shaped trajectory" is characterized by combining a circular trajectory and a straight trajectory, and by being unable to draw a right-angled trajectory, in reality it is closer to a rectangular trajectory. The size of the footprint formed when the aircraft 100 makes a circular flight on a D-shaped trajectory is more than twice the size of the footprint formed when the aircraft 100 makes a circular flight on a circular trajectory. In addition, when the aircraft 100 makes a circular flight on a D-shaped trajectory, it is necessary to control the antenna in order to form the footprint.

[0057] As described above, the footprint can be formed without controlling the antenna only when the flying object 100 performs a circular orbital flight. From the above, the information processing device 200 decides to adopt a "circular orbit" as the orbit for the flying object 100's circular flight.

[0058] 6 is an explanatory diagram for explaining an example of the aircraft performance information of the aircraft 100, the recommended conditions for the aircraft 100 when performing a demonstration experiment, and the relationship between the flight speed, the radius of the circular orbit, and the bank angle of the aircraft 100. Here, the flight speed of the aircraft 100 is the flight speed of the aircraft 100 when the aircraft 100 is flying in a circle, and the flight altitude of the aircraft 100 is the flight altitude of the aircraft 100 when the aircraft 100 is flying in a circle. The bank angle is the attitude angle of the aircraft 100 when the aircraft 100 is flying in a circle.

[0059] 6 is an explanatory diagram for explaining an example of aircraft performance information of the aircraft 100. The aircraft performance information of the aircraft 100 shown in the upper diagram of FIG. 6 is as follows.

[0060] The minimum flight altitude of the aircraft 100 is "1000 ft (304.8 m)." The minimum flight speed of the aircraft 100 is "170 km / h." The allowable bank angle of the aircraft 100 is "15°."

[0061] The middle diagram in Fig. 6 is an explanatory diagram for explaining an example of recommended conditions for the aircraft 100 when conducting a demonstration experiment. The recommended conditions for the aircraft 100 when conducting a demonstration experiment shown in the middle diagram in Fig. 6 are as follows.

[0062] The recommended flight conditions for the flying object 100 to fly in a circular flight when conducting a demonstration experiment are "over the sea only." The recommended flight altitude for the flying object 100 to fly in a demonstration experiment is "500 m or more." The recommended flight speed for the flying object 100 to fly in a demonstration experiment is "180 km / h or more."

[0063] The lower diagram of Fig. 6 is an explanatory diagram for explaining an example of the relationship between the flight speed, the radius of the circular orbit, and the bank angle of the flying body 100. The relationship between the flight speed, the radius of the circular orbit, and the bank angle of the flying body 100 shown in the lower diagram of Fig. 6 is as follows.

[0064] If the flight speed of the aircraft 100 is "180 km / h" and the radius of the circular orbit of the aircraft 100 is "1000 m", the bank angle of the aircraft 100 is "14.9418°". If the flight speed of the aircraft 100 is "180 km / h" and the radius of the circular orbit of the aircraft 100 is "1500 m", the bank angle of the aircraft 100 is "9.8392°". If the flight speed of the aircraft 100 is "180 km / h" and the radius of the circular orbit of the aircraft 100 is "2000 m", the bank angle of the aircraft 100 is "7.3480°".

[0065] If the flight speed of the aircraft 100 is "190 km / h" and the radius of the circular orbit of the aircraft 100 is "1000 m", the bank angle of the aircraft 100 is "16.7386°". If the flight speed of the aircraft 100 is "190 km / h" and the radius of the circular orbit of the aircraft 100 is "1500 m", the bank angle of the aircraft 100 is "10.9888°". If the flight speed of the aircraft 100 is "190 km / h" and the radius of the circular orbit of the aircraft 100 is "2000 m", the bank angle of the aircraft 100 is "8.1980°".

[0066] If the flight speed of the aircraft 100 is "200 km / h" and the radius of the circular orbit of the aircraft 100 is "1000 m", the bank angle of the aircraft 100 is "18.6660°". If the flight speed of the aircraft 100 is "200 km / h" and the radius of the circular orbit of the aircraft 100 is "1500 m", the bank angle of the aircraft 100 is "12.2098°". If the flight speed of the aircraft 100 is "200 km / h" and the radius of the circular orbit of the aircraft 100 is "2000 m", the bank angle of the aircraft 100 is "9.0977°".

[0067] If the flight speed of the aircraft 100 is "210 km / h" and the radius of the circular orbit of the aircraft 100 is "1000 m", the bank angle of the aircraft 100 is "20.7344°". If the flight speed of the aircraft 100 is "210 km / h" and the radius of the circular orbit of the aircraft 100 is "1500 m", the bank angle of the aircraft 100 is "13.5050°". If the flight speed of the aircraft 100 is "210 km / h" and the radius of the circular orbit of the aircraft 100 is "2000 m", the bank angle of the aircraft 100 is "10.0483°".

[0068] If the flight speed of the aircraft 100 is "220 km / h" and the radius of the circular orbit of the aircraft 100 is "1000 m", the bank angle of the aircraft 100 is "22.9563°". If the flight speed of the aircraft 100 is "220 km / h" and the radius of the circular orbit of the aircraft 100 is "1500 m", the bank angle of the aircraft 100 is "14.8776°". If the flight speed of the aircraft 100 is "220 km / h" and the radius of the circular orbit of the aircraft 100 is "2000 m", the bank angle of the aircraft 100 is "11.05116°".

[0069] When the flight speed of the aircraft 100 is 190 km / h or more and the radius of the circular orbit of the aircraft 100 is 1000 m, the bank angle of the aircraft 100 is greater than the allowable bank angle (=15°) of the aircraft 100. Therefore, when the flight speed of the aircraft 100 is 190 km / h or more and the radius of the circular orbit of the aircraft 100 is 1000 m, the bank angle of the aircraft 100 is not allowable. From the above, the information processing device 200 decides to adopt the following preconditions for simulating the circular orbit of the aircraft 100: "flight altitude of the aircraft 100 = 500 m or more", "flight speed of the aircraft 100 = 180 to 200 km / h", and "radius of the circular orbit of the aircraft 100 = 1000 m or more (however, when the radius of the circular orbit of the aircraft 100 is 1000 m, the flight speed of the aircraft 100 is only 180 km / h)".

[0070] Fig. 7 is an explanatory diagram for explaining an example of link budget conditions. Here, the link budget includes the link budget of the service link and the link budget of the feeder link. The link budgets shown in Fig. 7 are as follows.

[0071] The minimum receiving sensitivity (Reference Signal Received Power: RSRP) is "-115 dBm". The margin is "0 dB". The allowable antenna gain is "up to half of the half value allowed (power: -6 dB)". The antenna gain of the gateway 40 is "peak 6 dBi". The antenna gain of the FL antenna 140 is "peak 6 dBi". The antenna gain of the SL antenna 120 is "peak 6 dBi". The antenna gain of the communication terminal 300 is "0 dB".

[0072] 8 is an explanatory diagram for explaining an example of the relationship between the flight altitude and the footprint of the flying object 100. Here, the explanation is given on the assumption that the flying object 100 turns at a single point. Note that the flying object 100 turns at a single point may mean that the radius of the circular orbit of the flying object 100 is 0 m.

[0073] r i is the inner diameter of the footprint 124. i may be the distance from the center c of the footprint 124 to the position where the radio wave radiated by the SL antenna 120 and having a gain of -6 dB with respect to the peak value reaches the horizontal plane. The center c of the footprint 124 may be the intersection point between the center line of the SL antenna 120 parallel to the flight altitude direction and the horizontal plane.

[0074] r o is the outer diameter of the footprint 124. o may be the distance from the center c of the footprint 124 to the maximum reach in the horizontal plane of the radio waves radiated by the SL antenna 120 to meet the link budget requirements of the service link.

[0075] w is the width of the footprint 124. w is the width of ro andr i and w=r o -r i Meet the following.

[0076] As the flying altitude of the flying object 100 increases, w becomes shorter. As w becomes shorter, the area of ​​the footprint 124 becomes smaller. And when the flying altitude of the flying object 100 reaches a certain height or higher, the SL antenna 120 is no longer able to form the footprint 124. This is because, as the flying altitude of the flying object 100 increases, the free space loss of the radio waves radiated by the SL antenna 120 until they reach the horizontal plane increases, and as a result, fewer of the radio waves reach the horizontal plane to satisfy the link budget requirements of the service link. From the above, it can be said that "the lower the flying altitude of the flying object 100, the larger the area of ​​the footprint 124 that can be formed."

[0077] 9 is an explanatory diagram for explaining an example of the relationship between the footprint and the radius of the circular orbit of the flying object 100. Here, the description will be given assuming that the flying altitude of the flying object 100 is constant.

[0078] R is the radius of the circular orbit of air vehicle 100. Thus, 2R is the diameter of the circular orbit of air vehicle 100.

[0079] When R=0, the position of the SL antenna 120 does not change, and therefore the position of the footprint 124 formed by the SL antenna 120 does not change. w0 is the width of the footprint 124 formed by the SL antenna 120 when R=0.

[0080] When R>0, the position of SL antenna 120 changes, and therefore the position of footprint 124 formed by SL antenna 120 changes. w' is the width of footprint 126 formed by SL antenna 120 regardless of the position of air vehicle 100 while air vehicle 100 is in a circular orbital flight when R>0.

[0081] As R becomes longer, w' becomes shorter. As w' becomes shorter, the area of ​​footprint 126 becomes smaller. And when R exceeds a certain length, SL antenna 120 is no longer able to form footprint 126. This is because as R becomes longer, the amount of change in the position of the footprint formed by SL antenna 120 becomes greater. From the above, it can be said that "the shorter the radius of the circular orbit of aircraft 100, the wider the area of ​​the footprint that can be formed."

[0082] 10 is an explanatory diagram for explaining an example of a simulation result of a link budget of a feeder link and a FL wireless communication area. Here, the link budget of a feeder link is assumed to be a link budget of a downlink of the feeder link.

[0083] The upper diagram of Fig. 10 is an explanatory diagram for explaining an example of a link budget of a downlink of a feeder link. The link budget of the downlink of the feeder link shown in the upper diagram of Fig. 10 is as follows.

[0084] The minimum receiving sensitivity (RSRP) is "-115 dBm". The antenna gain of the FL antenna 140 is "inner diameter: half value (0 dBi), outer diameter: half value (3 dBi)". The antenna gain of the gateway 40 is "peak 6 dBi". The transmission power of the FL antenna 140 is "1 W (30 dBm)". The margin is "0 dB".

[0085] The lower diagram of Fig. 10 is an explanatory diagram for explaining an example of a simulation result in which the information processing device 200 simulates an FL wireless communication area. The simulation result by the information processing device 200 shown in the lower diagram of Fig. 10 is as follows.

[0086] When the flight altitude of aircraft 100 is "500 m" and the radius of the circular orbit of aircraft 100 is "0 m", the inner diameter of the footprint of the FL wireless communication area is "1538.8 m", the attenuation of the radio waves radiated by FL antenna 140 as they propagate the distance of the inner diameter of the footprint of the FL wireless communication area is "135.0 dB", the outer diameter of the footprint of the FL wireless communication area is "14350.4 m", and the attenuation of the radio waves radiated by FL antenna 140 as they propagate the distance of the outer diameter of the footprint of the FL wireless communication area is "149.0 dB". When the flight altitude of the flying body 100 is "1000 m" and the radius of the circular orbit of the flying body 100 is "0 m", the inner diameter of the footprint of the FL wireless communication area is "3077.7 m", the attenuation of the radio waves radiated by the FL antenna 140 as they propagate the distance of the inner diameter of the footprint of the FL wireless communication area is "141.1 dB", the outer diameter of the footprint of the FL wireless communication area is "14324.2 m", and the attenuation of the radio waves radiated by the FL antenna 140 as they propagate the distance of the outer diameter of the footprint of the FL wireless communication area is "149.0 dB". When the flight altitude of the flying body 100 is "1500 m" and the radius of the circular orbit of the flying body 100 is "0 m", the inner diameter of the footprint of the FL wireless communication area is "4616.5 m", the attenuation of the radio waves radiated by the FL antenna 140 as they propagate the distance of the inner diameter of the footprint of the FL wireless communication area is "144.6 dB", the outer diameter of the footprint of the FL wireless communication area is "14280.5 m", and the attenuation of the radio waves radiated by the FL antenna 140 as they propagate the distance of the outer diameter of the footprint of the FL wireless communication area is "149.0 dB".When the flight altitude of the flying body 100 is "2000 m" and the radius of the circular orbit of the flying body 100 is "0 m", the inner diameter of the footprint of the FL wireless communication area is "6155.4 m", the attenuation of the radio waves radiated by the FL antenna 140 as they propagate the distance of the inner diameter of the footprint of the FL wireless communication area is "147.1 dB", the outer diameter of the footprint of the FL wireless communication area is "14219.1 m", and the attenuation of the radio waves radiated by the FL antenna 140 as they propagate the distance of the outer diameter of the footprint of the FL wireless communication area is "149.0 dB".

[0087] When the flight altitude of the flying object 100 is "500m" and the radius of the circular orbit of the flying object 100 is "1000m", the inner diameter of the footprint of the FL wireless communication area is "1538.8m", the outer diameter of the footprint of the FL wireless communication area is "12350.4m", and the width of the footprint of the FL wireless communication area is "12350.4m-1538.8m=10811.6m". When the flight altitude of the flying object 100 is "500m" and the radius of the circular orbit of the flying object 100 is "1500m", the inner diameter of the footprint of the FL wireless communication area is "1538.8m", the outer diameter of the footprint of the FL wireless communication area is "11350.4m", and the width of the footprint of the FL wireless communication area is "11350.4m-1538.8m=9811.6m". If the flight altitude of the aircraft 100 is "500 m" and the radius of the circular orbit of the aircraft 100 is "2000 m", the inner diameter of the footprint of the FL wireless communication area is "1538.8 m", the outer diameter of the footprint of the FL wireless communication area is "10350.4 m", and the width of the footprint of the FL wireless communication area is "10350.4 m - 1538.8 m = 8811.6 m".

[0088] When the flight altitude of the flying object 100 is "1000m" and the radius of the circular orbit of the flying object 100 is "1000m", the inner diameter of the footprint of the FL wireless communication area is "3077.7m", the outer diameter of the footprint of the FL wireless communication area is "12324.2m", and the width of the footprint of the FL wireless communication area is "12324.2m-3077.7m=9246.6m". When the flight altitude of the flying object 100 is "1000m" and the radius of the circular orbit of the flying object 100 is "1500m", the inner diameter of the footprint of the FL wireless communication area is "3077.7m", the outer diameter of the footprint of the FL wireless communication area is "11324.2m", and the width of the footprint of the FL wireless communication area is "11324.2m-3077.7m=8246.6m". If the flight altitude of the aircraft 100 is "1000 m" and the radius of the circular orbit of the aircraft 100 is "2000 m", the inner diameter of the footprint of the FL wireless communication area is "3077.7 m", the outer diameter of the footprint of the FL wireless communication area is "10324.2 m", and the width of the footprint of the FL wireless communication area is "10324.2 m - 3077.7 m = 7246.6 m".

[0089] When the flight altitude of the flying object 100 is "1500m" and the radius of the circular orbit of the flying object 100 is "1000m", the inner diameter of the footprint of the FL wireless communication area is "4616.5m", the outer diameter of the footprint of the FL wireless communication area is "12280.5m", and the width of the footprint of the FL wireless communication area is "12280.5m-4616.5m=7664.0m". When the flight altitude of the flying object 100 is "1500m" and the radius of the circular orbit of the flying object 100 is "1500m", the inner diameter of the footprint of the FL wireless communication area is "4616.5m", the outer diameter of the footprint of the FL wireless communication area is "11280.5m", and the width of the footprint of the FL wireless communication area is "11280.5m-4616.5m=6664.0m". If the flight altitude of the aircraft 100 is "1500 m" and the radius of the circular orbit of the aircraft 100 is "2000 m", the inner diameter of the footprint of the FL wireless communication area is "4616.5 m", the outer diameter of the footprint of the FL wireless communication area is "10280.5 m", and the width of the footprint of the FL wireless communication area is "10280.5 m - 4616.5 m = 5664.0 m".

[0090] When the flight altitude of the flying object 100 is "2000m" and the radius of the circular orbit of the flying object 100 is "1000m", the inner diameter of the footprint of the FL wireless communication area is "6155.4m", the outer diameter of the footprint of the FL wireless communication area is "12219.1m", and the width of the footprint of the FL wireless communication area is "12219.1m-6155.4m=6063.8m". When the flight altitude of the flying object 100 is "2000m" and the radius of the circular orbit of the flying object 100 is "1500m", the inner diameter of the footprint of the FL wireless communication area is "6155.4m", the outer diameter of the footprint of the FL wireless communication area is "11219.1m", and the width of the footprint of the FL wireless communication area is "11219.1m-6155.4m=5063.8m". When the flight altitude of the aircraft 100 is "2000 m" and the radius of the circular orbit of the aircraft 100 is "2000 m", the inner diameter of the footprint of the FL wireless communication area is "6155.4 m", the outer diameter of the footprint of the FL wireless communication area is "10219.1 m", and the width of the footprint of the FL wireless communication area is "10219.1 m - 6155.4 m = 4063.8 m".

[0091] The simulation results by the information processing device 200 shown in the lower diagram of Fig. 10 show that the width of the footprint of the FL wireless communication area has a positive value for all combinations of the flight altitude and the radius of the circular orbit of the aircraft 100. This means that for all combinations of the flight altitude and the radius of the circular orbit of the aircraft 100, the aircraft 100 can form the footprint of the FL wireless communication area so as to satisfy the link budget requirement of the downlink of the feeder link.

[0092] 11 is an explanatory diagram for explaining an example of a link budget of a service link and a simulation result of simulating an SL wireless communication area. Here, the link budget of a service link is assumed to be the link budget of an uplink of the service link.

[0093] The upper diagram of Fig. 11 is an explanatory diagram for explaining an example of the link budget of the uplink of the service link. The link budget of the uplink of the service link shown in the upper diagram of Fig. 11 is as follows.

[0094] The minimum receiving sensitivity (RSRP) is "-115 dBm." The antenna gain of the communication terminal 300 is "0 dBi." The antenna gain of the SL antenna 120 is "half value (3 dBi)." The transmission power of the communication terminal 300 is "200 mW (23 dBm)." The margin is "0 dB."

[0095] The lower diagram of Fig. 11 is an explanatory diagram for explaining an example of a simulation result in which the information processing device 200 simulates an SL wireless communication area. The simulation result by the information processing device 200 shown in the lower diagram of Fig. 11 is as follows.

[0096] When the flight altitude of the flying body 100 is "500 m" and the radius of the circular orbit of the flying body 100 is "0 m", the inner diameter of the footprint of the SL wireless communication area is "1373.7 m", the attenuation of the radio waves radiated by the SL antenna 120 while propagating the distance of the inner diameter of the footprint of the SL wireless communication area is "129.6 dB", the outer diameter of the footprint of the SL wireless communication area is "5406.5 m", and the attenuation of the radio waves radiated by the SL antenna 120 while propagating the distance of the outer diameter of the footprint of the SL wireless communication area is "141.0 dB". When the flight altitude of the flying body 100 is "1000 m" and the radius of the circular orbit of the flying body 100 is "0 m", the inner diameter of the footprint of the SL wireless communication area is "2747.5 m", the attenuation of the radio waves radiated by the SL antenna 120 while propagating the distance of the inner diameter of the footprint of the SL wireless communication area is "135.6 dB", the outer diameter of the footprint of the SL wireless communication area is "5336.7 m", and the attenuation of the radio waves radiated by the SL antenna 120 while propagating the distance of the outer diameter of the footprint of the SL wireless communication area is "141.0 dB". When the flight altitude of the flying body 100 is "1500 m" and the radius of the circular orbit of the flying body 100 is "0 m", the inner diameter of the footprint of the SL wireless communication area is "4121.2 m", the attenuation of the radio waves radiated by the SL antenna 120 as they propagate the distance of the inner diameter of the footprint of the SL wireless communication area is "139.2 dB", the outer diameter of the footprint of the SL wireless communication area is "5218.2 m", and the attenuation of the radio waves radiated by the SL antenna 120 as they propagate the distance of the outer diameter of the footprint of the SL wireless communication area is "141.0 dB".When the flight altitude of the flying body 100 is "2000 m" and the radius of the circular orbit of the flying body 100 is "0 m", the inner diameter of the footprint of the SL wireless communication area is "5495.0 m", the attenuation of the radio waves radiated by the SL antenna 120 while propagating the distance of the inner diameter of the footprint of the SL wireless communication area is "141.7 dB", the outer diameter of the footprint of the SL wireless communication area is "5047.8 m", and the attenuation of the radio waves radiated by the SL antenna 120 while propagating the distance of the outer diameter of the footprint of the SL wireless communication area is "141.0 dB".

[0097] When the flight altitude of the flying body 100 is "500m" and the radius of the circular orbit of the flying body 100 is "1000m", the inner diameter of the footprint of the SL wireless communication area is "1373.7m", the outer diameter of the footprint of the SL wireless communication area is "3406.5m", and the width of the footprint of the SL wireless communication area is "3406.5m-1373.7m=2032.7m". When the flight altitude of the flying body 100 is "500m" and the radius of the circular orbit of the flying body 100 is "1500m", the inner diameter of the footprint of the SL wireless communication area is "1373.7m", the outer diameter of the footprint of the SL wireless communication area is "2406.5m", and the width of the footprint of the SL wireless communication area is "2406.5m-1373.7m=1032.7m". If the flight altitude of the aircraft 100 is "500 m" and the radius of the circular orbit of the aircraft 100 is "2000 m", the inner diameter of the footprint of the SL wireless communication area is "1373.7 m", the outer diameter of the footprint of the SL wireless communication area is "1406.5 m", and the width of the footprint of the SL wireless communication area is "1406.5 m - 1373.7 m = 32.7 m".

[0098] When the flight altitude of the flying body 100 is "1000m" and the radius of the circular orbit of the flying body 100 is "1000m", the inner diameter of the footprint of the SL wireless communication area is "2747.5m", the outer diameter of the footprint of the SL wireless communication area is "3336.7m", and the width of the footprint of the SL wireless communication area is "3336.7m-2747.5m=589.2m". When the flight altitude of the flying body 100 is "1000m" and the radius of the circular orbit of the flying body 100 is "1500m", the inner diameter of the footprint of the SL wireless communication area is "2747.5m", the outer diameter of the footprint of the SL wireless communication area is "2336.7m", and the width of the footprint of the SL wireless communication area is "2336.7m-2747.5m=-410.8m". If the flight altitude of the aircraft 100 is "1000 m" and the radius of the circular orbit of the aircraft 100 is "2000 m", the inner diameter of the footprint of the SL wireless communication area is "2747.5 m", the outer diameter of the footprint of the SL wireless communication area is "1336.7 m", and the width of the footprint of the SL wireless communication area is "1336.7 m - 2747.5 m = -1410.8 m".

[0099] When the flight altitude of the flying body 100 is "1500m" and the radius of the circular orbit of the flying body 100 is "1000m", the inner diameter of the footprint of the SL wireless communication area is "4121.2m", the outer diameter of the footprint of the SL wireless communication area is "3218.2m", and the width of the footprint of the SL wireless communication area is "3218.2m-4121.2m=-903.0m". When the flight altitude of the flying body 100 is "1500m" and the radius of the circular orbit of the flying body 100 is "1500m", the inner diameter of the footprint of the SL wireless communication area is "4121.2m", the outer diameter of the footprint of the SL wireless communication area is "2218.2m", and the width of the footprint of the SL wireless communication area is "2218.2m-4121.2m=-1903.0m". If the flight altitude of the aircraft 100 is "1500 m" and the radius of the circular orbit of the aircraft 100 is "2000 m", the inner diameter of the footprint of the SL wireless communication area is "4121.2 m", the outer diameter of the footprint of the SL wireless communication area is "1218.2 m", and the width of the footprint of the SL wireless communication area is "1218.2 m - 4121.2 m = -2903.0 m".

[0100] When the flight altitude of the flying body 100 is "2000 m" and the radius of the circular orbit of the flying body 100 is "1000 m", the inner diameter of the footprint of the SL wireless communication area is "5495.0 m", the outer diameter of the footprint of the SL wireless communication area is "3047.8 m", and the width of the footprint of the SL wireless communication area is "3047.8 m - 5495.0 m = -2447.2 m". When the flight altitude of the flying body 100 is "2000 m" and the radius of the circular orbit of the flying body 100 is "1500 m", the inner diameter of the footprint of the SL wireless communication area is "5495.0 m", the outer diameter of the footprint of the SL wireless communication area is "2047.8 m", and the width of the footprint of the SL wireless communication area is "2047.8 m - 5495.0 m = -3447.2 m". When the flight altitude of the aircraft 100 is "2000 m" and the radius of the circular orbit of the aircraft 100 is "2000 m", the inner diameter of the footprint of the SL wireless communication area is "5495.0 m", the outer diameter of the footprint of the SL wireless communication area is "1047.8 m", and the width of the footprint of the SL wireless communication area is "1047.8 m - 5495.0 m = -4447.2 m".

[0101] The simulation result by the information processing device 200 shown in the lower diagram of Fig. 11 indicates that, among all combinations of the flight altitude and the radius of the circular orbit of the flying body 100, only the combinations of flight altitude of the flying body 100 = 500m and the radius of the circular orbit of the flying body 100 = 1000m, flight altitude of the flying body 100 = 500m and the radius of the circular orbit of the flying body 100 = 1500m, flight altitude of the flying body 100 = 500m and the radius of the circular orbit of the flying body 100 = 2000m, and flight altitude of the flying body 100 = 1000m and the radius of the circular orbit of the flying body 100 = 1000m have a positive value for the width of the footprint of the SL wireless communication area. This means that only in the combinations of flight altitude and the radius of the circular orbit of the flying body 100 where the width of the footprint of the SL wireless communication area described above has a positive value, the flying body 100 can form the footprint of the SL wireless communication area so as to satisfy the link budget requirement of the uplink of the service link.

[0102] 10 and 11 show that the combination of the flight altitude and the radius of the circular orbit of the flying object 100 that can form the footprint of the FL wireless communication area is not limited, but the combination of the flight altitude and the radius of the circular orbit of the flying object 100 that can form the footprint of the SL wireless communication area is limited. This is because the transmission power (=200 mW) of the communication terminal 300 is smaller than the transmission power (=1 W) of the FL antenna 140.

[0103] Fig. 12 is an explanatory diagram for explaining an example of the relationship between the flight altitude and the radius of the circular orbit of the flying object 100 and the footprint. Here, an example will be mainly described in which the information processing device 200 determines the flight altitude and the radius of the circular orbit of the flying object 100 based on the simulation result by the information processing device 200 shown in Fig. 11.

[0104] When the flight altitude of the aircraft 100 is "500 m" and the radius of the circular orbit of the aircraft 100 is "1000 m", the aircraft 100 forms a footprint of an SL wireless communication area with a width of "2032.7 m". When the flight altitude of the aircraft 100 is "500 m" and the radius of the circular orbit of the aircraft 100 is "1500 m", the aircraft 100 forms a footprint of an SL wireless communication area with a width of "1032.7 m". When the flight altitude of the aircraft 100 is "500 m" and the radius of the circular orbit of the aircraft 100 is "2000 m", the aircraft 100 forms a footprint of an SL wireless communication area with a width of "32.7 m".

[0105] When the flight altitude of the aircraft 100 is "1000 m" and the radius of the circular orbit of the aircraft 100 is "1000 m", the aircraft 100 forms a footprint of an SL wireless communication area with a width of "589.2 m". When the flight altitude of the aircraft 100 is "1000 m" and the radius of the circular orbit of the aircraft 100 is "1500 m", the aircraft 100 cannot form a footprint of an SL wireless communication area. When the flight altitude of the aircraft 100 is "1000 m" and the radius of the circular orbit of the aircraft 100 is "2000 m", the aircraft 100 cannot form a footprint of an SL wireless communication area.

[0106] As shown in Fig. 12, when the flying altitude of the flying body 100 is "500m" and the radius of the circular orbit of the flying body 100 is "1000m", the flying body 100 can form the footprint of the SL wireless communication area with the widest width. However, as shown in Fig. 6, when the flying altitude of the flying body 100 is "500m" and the radius of the circular orbit of the flying body 100 is "1000m", even if the flying speed of the flying body 100 is "180km / h", the bank angle of the flying body 100 is "14.9418°", and the margin of the bank angle is small. From the above, the information processing device 200 decides to adopt "500m" as the flying altitude of the flying body 100 and "1500m" as the radius of the circular orbit of the flying body 100.

[0107] Fig. 13 is an explanatory diagram for explaining an example of the determination items determined by the information processing device 200. Based on the above-mentioned simulation results, the information processing device 200 determined the "antenna mounting method," "orbit of the flying body 100," "flight speed of the flying body 100," "radius of the orbit of the flying body 100," and "flight altitude of the flying body 100." The determination items determined by the information processing device 200 shown in Fig. 13 are as follows.

[0108] In the item "Antenna mounting method", the information processing device 200 has determined "vertical mounting" as the mounting method for mounting the SL antenna 120 and the FL antenna 140 on the flying object 100 from among the candidates "horizontal mounting" and "vertical mounting". In the item "Trajectory of the flying object 100", the information processing device 200 has determined "circular orbit" as the trajectory of the turning flight of the flying object 100 from among the candidates "circular orbit", "figure-8 orbit", "rectangular orbit", and "D-shaped orbit". In the item "Flight speed of the flying object 100", the information processing device 200 has determined "180 km / h" as the flight speed of the flying object 100 when the flying object 100 is flying in a turning flight from among the candidates "170 km / h or more". In the item "radius of orbit of flying body 100", the information processing device 200 determined "1500 m" as the radius of the circular orbit of the flying body 100 when the flying body 100 is in a circular flight from among the candidates "1000 m", "1500 m", and "2000 m". In the item "flight altitude of flying body 100", the information processing device 200 determined "500 m" as the flight altitude of the flying body 100 when the flying body 100 is in a circular flight from among the candidates "500 m", "1000 m", and "1500 m".

[0109] Based on the above-mentioned determination items, the information processing device 200 may simulate the SL wireless communication area 122 formed by the SL beam irradiated by the SL antenna 120 while the flying object 100 is flying in a circle. Then, based on the provided area information and the simulation result of simulating the SL wireless communication area, the information processing device 200 may determine the trajectory of the flying object 100 so that the provided area 60 is included in the SL wireless communication area 122 while the flying object 100 is flying in a circle.

[0110] Based on the above-mentioned determination items, the information processing device 200 may further simulate an FL wireless communication area formed by the FL beam irradiated by the FL antenna 140 while the flying object 100 is making a circular flight. Then, based on the installation position information and the simulation result of simulating the FL wireless communication area, the information processing device 200 may determine the trajectory of the flying object 100 such that the provided region 60 is included in the SL wireless communication area 122 and the installation position of the gateway 40 is included in the FL wireless communication area while the flying object 100 is making a circular flight.

[0111] Conventionally, there has been active research into technology that uses an airborne base station to provide wireless communication services to an area where wireless communication services cannot be used, such as when a wireless base station is damaged in a large-scale disaster, or when many people gather at an event venue, etc. In recent years, with the emergence of unmanned aerial vehicles capable of high-speed flight on the market, research into this technology has become even more active.

[0112] When providing wireless communication services to a target area using an aircraft base station, the more the number of aircraft base stations, the more the wireless communication services can be provided to multiple target areas with different locations or to a wide target area. Therefore, it can be said that the more the number of aircraft base stations, the more flexible the wireless communication services can be provided using the aircraft base station. Therefore, in order to realize the provision of more flexible wireless communication services using the aircraft base station, it is desirable to be able to manufacture more aircraft base stations within a limited budget. Therefore, in order to reduce the manufacturing cost of the aircraft base station, it is being considered to use a collinear antenna mounted on an existing balloon base station as an antenna mounted on the aircraft base station. However, unlike a balloon base station that flies at a fixed point, an aircraft base station flies in a circular flight. In addition, the flying altitude of the aircraft base station when the aircraft base station provides wireless communication services is higher than the flying altitude of the balloon base station when the balloon base station provides wireless communication services. Therefore, the wireless communication area formed by an aircraft base station equipped with a collinear antenna has different properties from the wireless communication area formed by a balloon base station equipped with a collinear antenna. From the above, it is desirable that an aircraft base station equipped with a collinear antenna mounted on an existing balloon base station can provide wireless communication services to a target area while flying in a circular flight.

[0113] In contrast, according to the system 10 of the present embodiment, the information processing device 200 simulates the SL wireless communication area 122 while the aircraft 100 is flying in a circular flight based on the SL antenna performance information of the SL antenna 120, which is a colinear antenna, and the aircraft performance information of the aircraft 100 equipped with the SL antenna 120. Then, the information processing device 200 determines the trajectory of the aircraft 100 so that the provision target area 60 is included in the SL wireless communication area 122 while the aircraft 100 is flying in a circular flight based on the provision target area information and the simulation result of simulating the SL wireless communication area 122. The aircraft 100 can provide wireless communication services to the provision target area 60 while flying in a circular flight by forming the SL wireless communication area 122 while flying in a circular flight according to the trajectory of the aircraft 100 determined by the information processing device 200. As a result, the system 10 according to the present embodiment can provide wireless communication services to the target area while the aircraft base station equipped with the colinear antenna mounted on the existing balloon base station is flying in a circular flight. Furthermore, when a colinear antenna mounted on an existing balloon base station is used as an antenna mounted on an aircraft base station, the manufacturing cost of the aircraft base station can be reduced compared to developing a new antenna for the aircraft base station. As a result, the system 10 according to the present embodiment can reduce the manufacturing cost of an aircraft base station capable of providing wireless communication services to a target area while flying in a circle. As a result, the system 10 according to the present embodiment can contribute to realizing the provision of more flexible wireless communication services using an aircraft base station.

[0114] 14 illustrates an example of a functional configuration of the information processing device 200. The information processing device 200 includes a storage unit 202, an acquisition unit 204, a simulation unit 206, a determination unit 208, and a control unit 210. Note that it is not essential that the information processing device 200 includes all of these components.

[0115] The storage unit 202 stores various types of information, for example, information on the installation location of the gateway 40.

[0116] The storage unit 202 stores, for example, SL antenna performance information of the SL antenna 120. The SL antenna performance information includes, for example, SL antenna frequency band information indicating the frequency band of the SL antenna 120. The SL antenna performance information includes, for example, SL antenna antenna power information indicating the antenna power of the SL antenna 120. The SL antenna performance information includes, for example, SL antenna gain information indicating the antenna gain of the SL antenna 120. The SL antenna performance information includes, for example, SL antenna antenna type information indicating the antenna type of the SL antenna 120. The SL antenna performance information includes, for example, SL antenna horizontal plane half-width information indicating the horizontal plane half-width of the SL antenna 120. The SL antenna performance information includes, for example, SL antenna vertical plane half-width information indicating the vertical plane half-width of the SL antenna 120.

[0117] The storage unit 202 stores, for example, FL antenna performance information of the FL antenna 140. The FL antenna performance information includes, for example, FL antenna frequency band information indicating the frequency band of the FL antenna 140. The FL antenna performance information includes, for example, FL antenna antenna power information indicating the antenna power of the FL antenna 140. The FL antenna performance information includes, for example, FL antenna gain information indicating the antenna gain of the FL antenna 140. The FL antenna performance information includes, for example, FL antenna antenna type information indicating the antenna type of the FL antenna 140. The FL antenna performance information includes, for example, FL antenna horizontal plane half-width information indicating the horizontal plane half-width of the FL antenna 140. The FL antenna performance information includes, for example, FL antenna vertical plane half-width information indicating the vertical plane half-width of the FL antenna 140.

[0118] The storage unit 202 stores, for example, aircraft performance information of the aircraft 100. The aircraft performance information includes, for example, minimum flight altitude information indicating the minimum flight altitude of the aircraft 100 when performing turning flight. The aircraft performance information includes, for example, minimum flight speed information indicating the minimum flight speed of the aircraft 100 when performing turning flight. The aircraft performance information includes, for example, permissible bank angle information indicating the permissible bank angle of the aircraft 100 when performing turning flight.

[0119] The storage unit 202 stores, for example, recommended condition information indicating recommended conditions for the flying object 100 when performing a demonstration experiment. The recommended condition information includes, for example, recommended flight condition information indicating recommended flight conditions under which the flying object 100 will perform a circular flight when performing a demonstration experiment. The recommended condition information includes, for example, recommended flight altitude information indicating a recommended flight altitude for the flying object 100 when performing a demonstration experiment. The recommended condition information includes, for example, recommended flight speed information indicating a recommended flight speed for the flying object 100 when performing a demonstration experiment.

[0120] The storage unit 202 stores, for example, link budget information indicating a link budget. The link budget information includes, for example, service link budget information indicating a link budget of a service link. The link budget information includes, for example, feeder link budget information indicating a link budget of a feeder link.

[0121] The link budget information includes, for example, minimum receiving sensitivity information indicating a minimum receiving sensitivity (RSRP). The link budget information includes, for example, margin information indicating a margin. The link budget information includes, for example, allowable antenna gain information indicating an allowable antenna gain. The link budget information includes, for example, gateway gain information indicating the antenna gain of the gateway 40. The link budget information includes, for example, SL antenna gain information indicating the antenna gain of the SL antenna 120. The link budget information includes, for example, FL antenna gain information indicating the antenna gain of the FL antenna 140. The link budget information includes, for example, communication terminal gain information indicating the antenna gain of the communication terminal 300. The link budget information includes, for example, gateway transmission power information indicating the transmission power of the gateway 40. The link budget information includes, for example, SL antenna transmission power information indicating the transmission power of the SL antenna 120. The link budget information includes, for example, FL antenna transmission power information indicating the transmission power of the FL antenna 140. The link budget information includes, for example, communication terminal transmission power information indicating the transmission power of the communication terminal 300.

[0122] The acquisition unit 204 acquires various information. For example, the acquisition unit 204 acquires various information by receiving various information via the network 20. The acquisition unit 204 may acquire various information by accepting input from a user of the information processing device 200 via an input unit included in the information processing device 200. The user of the information processing device 200 may be a telecommunications carrier. The acquisition unit 204 may store the acquired various information in the storage unit 202.

[0123] The acquisition unit 204 acquires, for example, provision target area information indicating the provision target area 60. The acquisition unit 204 acquires, for example, provision target area information indicating two provision target areas 60 at different positions.

[0124] The service target area 60 is, for example, an area affected by a disaster, or may be an area including a place where many users of wireless communication services are concentrated, such as an event venue.

[0125] The acquisition unit 204 acquires the provided area information, for example, by receiving the provided area information from a communication device owned by the user of the information processing device 200 via the network 20. The acquisition unit 204 may acquire the provided area information by accepting an input from the user of the information processing device 200 via an input unit included in the information processing device 200.

[0126] The acquiring unit 204 may acquire the disaster information from, for example, the disaster information management device 400.

[0127] The simulation unit 206 executes various simulations based on various information stored in the storage unit 202, for example.

[0128] For example, in order to determine a mounting method for mounting the SL antenna 120 on the flying object 100, the simulation unit 206 simulates the footprint of the SL wireless communication area 122 formed by the SL beam irradiated by the SL antenna 120 while the flying object 100 is flying in a circle based on the SL antenna performance information of the SL antenna 120. For example, the simulation unit 206 simulates the footprint of the SL wireless communication area 122 formed while the flying object 100 is flying in a circle when the SL antenna 120 is mounted horizontally on the flying object 100 and when the SL antenna 120 is mounted vertically on the flying object 100.

[0129] For example, in order to determine a mounting method for mounting the FL antenna 140 on the aircraft 100, the simulation unit 206 simulates the footprint of an FL wireless communication area formed by an FL beam irradiated by the FL antenna 140 while the aircraft 100 is flying in a circle based on the FL antenna performance information of the FL antenna 140. For example, the simulation unit 206 simulates the footprint of the FL wireless communication area formed while the aircraft 100 is flying in a circle when the FL antenna 140 is mounted horizontally on the aircraft 100 and when the FL antenna 140 is mounted vertically on the aircraft 100.

[0130] The determination unit 208 determines various items. The determination unit 208 determines various items based on the results of a simulation performed by the simulation unit 206, for example.

[0131] The determination unit 208 determines the mounting method for the SL antenna 120 on the aircraft 100 based on the simulation results obtained by the simulation unit 206 simulating the footprints of the SL wireless communication area 122 formed while the aircraft 100 is flying in a circle when the SL antenna 120 is mounted horizontally on the aircraft 100 and when the SL antenna 120 is mounted vertically on the aircraft 100. The determination unit 208 may determine to mount the SL antenna 120 vertically on the aircraft 100 so that the horizontally polarized waves of the SL antenna 120 are omnidirectional.

[0132] The determination unit 208 determines the mounting method for the FL antenna 140 on the aircraft 100 based on the simulation results obtained by the simulation unit 206 simulating the footprints of the FL wireless communication area formed while the aircraft 100 is flying in a circle when the FL antenna 140 is mounted horizontally on the aircraft 100 and when the FL antenna 140 is mounted vertically on the aircraft 100. The determination unit 208 may determine to mount the FL antenna 140 vertically on the aircraft 100 so that the horizontally polarized waves of the FL antenna 140 are omnidirectional.

[0133] The determination unit 208, for example, determines a trajectory of the turning flight of the aircraft 100. For example, the determination unit 208 may determine the trajectory of the turning flight of the aircraft 100 to be a circular orbit from among a circular orbit, a figure-of-eight orbit, a rectangular orbit, and a D-shaped orbit, in order to form a footprint without controlling an antenna mounted on the aircraft 100.

[0134] The simulation unit 206 simulates the SL wireless communication area 122 formed by the SL beam irradiated by the SL antenna 120 while the aircraft 100 is flying in a circle, for example, based on the SL antenna performance information of the SL antenna 120 and the aircraft performance information of the aircraft 100. The simulation unit 206 simulates the SL wireless communication area 122 formed by the SL beam while the aircraft 100 is flying in a circle, for example. The simulation unit 206 simulates the SL wireless communication area 122 formed by the SL beam while the aircraft 100 is flying in a circle, for example, by deriving the inner and outer diameters of the footprint of the SL wireless communication area 122 based on the SL antenna gain information of the SL antenna 120. The simulation unit 206 simulates the SL wireless communication area 122 formed by the SL beam while the aircraft 100 is flying in a circular orbit by, for example, deriving the width of the footprint of the SL wireless communication area 122 from the difference between the outer diameter and the inner diameter of the footprint of the SL wireless communication area 122.

[0135] The simulation unit 206 simulates the SL wireless communication area 122 formed by the SL beam while the aircraft 100 is flying around in a circular orbit in a case where the radius of the circular orbit of the aircraft 100 is the radius of each of a plurality of circular orbits. The simulation unit 206 simulates the SL wireless communication area 122 formed by the SL beam while the aircraft 100 is flying around in a circular orbit in a case where the radius of the circular orbit of the aircraft 100 is 0 m, the radius of the circular orbit of the aircraft 100 is 1000 m, the radius of the circular orbit of the aircraft 100 is 1500 m, and the radius of the circular orbit of the aircraft 100 is 2000 m.

[0136] The simulation unit 206 simulates the SL wireless communication area 122 formed by the SL beam while the flying body 100 is flying around a circular orbit when the flying speed of the flying body 100 is each of a plurality of flight speeds. The simulation unit 206 simulates the SL wireless communication area 122 formed by the SL beam while the flying body 100 is flying around a circular orbit when the flying speed of the flying body 100 is 180 km / h, when the flying speed of the flying body 100 is 190 km / h, and when the flying speed of the flying body 100 is 200 km / h. The plurality of flight speeds are assumed to be flight speeds equal to or higher than the minimum flight speed of the flying body 100 indicated by the minimum flight speed information included in the flying body performance information of the flying body 100.

[0137] The simulation unit 206 simulates the SL wireless communication area 122 formed by the SL beam while the aircraft 100 is flying in a circular orbit based on, for example, the minimum flight speed information and the allowable bank angle information of the aircraft 100 included in the aircraft performance information of the aircraft 100. The simulation unit 206 simulates the SL wireless communication area 122 formed by the SL beam while the aircraft 100 is flying in a circular orbit when the flight speed of the aircraft 100 is each flight speed by deriving the radius of the circular orbit of the aircraft 100 when the bank angle of the aircraft 100 is smaller than the allowable bank angle indicated by the allowable bank angle information when the flight speed of the aircraft 100 is each flight speed that is equal to or greater than the minimum flight speed indicated by the minimum flight speed information.

[0138] The simulation unit 206 simulates the SL wireless communication area 122 formed by the SL beam while the aircraft 100 is flying around a circular orbit when the flight altitude of the aircraft 100 is each of a plurality of flight altitudes. The simulation unit 206 simulates the SL wireless communication area 122 formed by the SL beam while the aircraft 100 is flying around a circular orbit when the flight altitude of the aircraft 100 is 500 m, when the flight altitude of the aircraft 100 is 1000 m, and when the flight altitude of the aircraft 100 is 1500 m. The plurality of flight altitudes are assumed to be flight altitudes equal to or higher than the minimum flight altitude of the aircraft 100 indicated by the minimum flight altitude information included in the aircraft performance information of the aircraft 100.

[0139] The simulation unit 206 simulates an FL wireless communication area formed by an FL beam irradiated by the FL antenna 140 while the flying object 100 is flying in a circular orbit, for example, based on the FL antenna performance information of the FL antenna 140 and the flying object performance information of the flying object 100. The simulation unit 206 simulates an FL wireless communication area formed by an FL beam while the flying object 100 is flying in a circular orbit, for example, by deriving an inner diameter and an outer diameter of a footprint of the FL wireless communication area based on the FL antenna gain information of the FL antenna 140. The simulation unit 206 simulates an FL wireless communication area formed by an FL beam while the flying object 100 is flying in a circular orbit, for example, by deriving a width of a footprint of the FL wireless communication area from a difference between an outer diameter and an inner diameter of the footprint of the FL wireless communication area.

[0140] The simulation unit 206 simulates an FL wireless communication area formed by the FL beam while the aircraft 100 is flying around a circular orbit in a case where the radius of the circular orbit of the aircraft 100 is the radius of each of a plurality of circular orbits. The simulation unit 206 simulates an FL wireless communication area formed by the FL beam while the aircraft 100 is flying around a circular orbit in a case where the radius of the circular orbit of the aircraft 100 is 0 m, the radius of the circular orbit of the aircraft 100 is 1000 m, the radius of the circular orbit of the aircraft 100 is 1500 m, and the radius of the circular orbit of the aircraft 100 is 2000 m.

[0141] The simulation unit 206 simulates an FL wireless communication area formed by the FL beam while the flying body 100 is flying in a circular orbit when the flying speed of the flying body 100 is each of a plurality of flight speeds. The simulation unit 206 simulates an FL wireless communication area formed by the FL beam while the flying body 100 is flying in a circular orbit when the flying speed of the flying body 100 is 180 km / h, when the flying speed of the flying body 100 is 190 km / h, and when the flying speed of the flying body 100 is 200 km / h. The plurality of flight speeds are assumed to be flight speeds equal to or higher than the minimum flight speed of the flying body 100 indicated by the minimum flight speed information included in the flying body performance information of the flying body 100.

[0142] The simulation unit 206 simulates an FL wireless communication area formed by the FL beam while the aircraft 100 is flying in a circular orbit based on, for example, the minimum flight speed information and the allowable bank angle information of the aircraft 100 included in the aircraft performance information of the aircraft 100. The simulation unit 206 simulates an FL wireless communication area formed by the FL beam while the aircraft 100 is flying in a circular orbit when the flight speed of the aircraft 100 is each flight speed by deriving the radius of the circular orbit of the aircraft 100 when the bank angle of the aircraft 100 is smaller than the allowable bank angle indicated by the allowable bank angle information when the flight speed of the aircraft 100 is each flight speed that is equal to or greater than the minimum flight speed indicated by the minimum flight speed information.

[0143] The simulation unit 206 simulates an FL wireless communication area formed by the FL beam while the aircraft 100 is flying around a circular orbit when the flight altitude of the aircraft 100 is each of a plurality of flight altitudes. The simulation unit 206 simulates an FL wireless communication area formed by the FL beam while the aircraft 100 is flying around a circular orbit when the flight altitude of the aircraft 100 is 500 m, when the flight altitude of the aircraft 100 is 1000 m, and when the flight altitude of the aircraft 100 is 1500 m. The plurality of flight altitudes are assumed to be flight altitudes equal to or higher than the minimum flight altitude of the aircraft 100 indicated by the minimum flight altitude information included in the aircraft performance information of the aircraft 100.

[0144] The determination unit 208 determines the flight speed of the aircraft 100 when the aircraft 100 is flying in a circle, for example, based on the simulation result obtained by the simulation unit 206 simulating the SL wireless communication area 122. The determination unit 208 determines the flight altitude of the aircraft 100 when the aircraft 100 is flying in a circle, for example, based on the simulation result obtained by the simulation unit 206 simulating the SL wireless communication area 122. The determination unit 208 determines the radius of the circular orbit of the aircraft 100 when the aircraft 100 is flying in a circle, for example, based on the simulation result obtained by the simulation unit 206 simulating the SL wireless communication area 122.

[0145] The determination unit 208 determines the flight speed of the aircraft 100 when the aircraft 100 is flying in a circle, for example, based on the simulation result of the simulation unit 206 simulating the FL wireless communication area. The determination unit 208 determines the flight altitude of the aircraft 100 when the aircraft 100 is flying in a circle, for example, based on the simulation result of the simulation unit 206 simulating the FL wireless communication area. The determination unit 208 determines the radius of the circular orbit of the aircraft 100 when the aircraft 100 is flying in a circle, for example, based on the simulation result of the simulation unit 206 simulating the FL wireless communication area.

[0146] The determination unit 208 determines the trajectory of the flying object 100 such that the provided area 60 is included in the SL wireless communication area 122 while the flying object 100 is flying in a circle, based on, for example, the provided area information and a simulation result obtained by the simulation unit 206 simulating the SL wireless communication area 122. The determination unit 208 determines the trajectory of the flying object 100 such that, for example, two provided areas 60 with different positions, which are indicated by the provided area information, are included in the SL wireless communication area 122 while the flying object 100 is flying in a circle.

[0147] The determination unit 208 determines the position of the center of the circular orbit of the flying object 100, for example, while the flying object 100 is flying in a circular orbit, such that the provision target area 60 is included in the SL wireless communication area 122. The determination unit 208 determines the flight altitude of the flying object 100, for example, while the flying object 100 is flying in a circular orbit, such that the provision target area 60 is included in the SL wireless communication area 122. The determination unit 208 determines the flight speed of the flying object 100 and the radius of the circular orbit of the flying object 100, for example, while the flying object 100 is flying in a circular orbit, such that the provision target area 60 is included in the SL wireless communication area 122.

[0148] The determination unit 208 determines the trajectory of the flying object 100 so that the installation position of the gateway 40 is included in the FL wireless communication area while the flying object 100 is flying in a circle, for example, based on the installation position information of the gateway 40 and the simulation result of the FL wireless communication area simulated by the simulation unit 206. The determination unit 208 determines the trajectory of the flying object 100 so that the provision target region 60 is included in the SL wireless communication area 122 and the installation position of the gateway 40 is included in the FL wireless communication area while the flying object 100 is flying in a circle, for example.

[0149] The determination unit 208 determines the position of the center of the circular orbit of the flying object 100, for example, so that the provision target area 60 is included in the SL wireless communication area 122 and the installation position of the gateway 40 is included in the FL wireless communication area while the flying object 100 is flying in a circular orbit. The determination unit 208 determines the flight altitude of the flying object 100, for example, so that the provision target area 60 is included in the SL wireless communication area 122 and the installation position of the gateway 40 is included in the FL wireless communication area while the flying object 100 is flying in a circular orbit. The determination unit 208 determines the flight speed of the flying object 100 and the radius of the circular orbit of the flying object 100, for example, so that the provision target area 60 is included in the SL wireless communication area 122 and the installation position of the gateway 40 is included in the FL wireless communication area while the flying object 100 is flying in a circular orbit.

[0150] The control unit 210 controls various functions of the flying object 100. The control unit 210 controls, for example, the flight functions of the flying object 100. The control unit 210 controls, for example, the flight speed of the flying object 100. The control unit 210 controls, for example, the flight altitude of the flying object 100. The control unit 210 controls, for example, the communication function of the flying object 100.

[0151] The control unit 210 controls various functions of the aircraft 100 by, for example, generating various control signals and transmitting the generated various control signals to the aircraft 100 via the network 20. The control unit 210 generates, for example, a flight control signal. The control unit 210 generates, for example, a communication control signal.

[0152] The control unit 210 controls the flying object 100 to, for example, make a circular flight on the trajectory of the flying object 100 determined by the determination unit 208. For example, when the trajectory of the flying object 100 determined by the determination unit 208 is a circular trajectory, the control unit 210 generates various control signals based on the radius of the circular trajectory and the position of the center of the circular trajectory, and transmits the generated various control signals to the flying object 100, thereby making the flying object 100 make a circular flight on the circular trajectory. When the flying object 100 is an autonomous flying object, the control unit 210 may make the flying object 100 make a circular flight on the circular trajectory by transmitting to the flying object 100 radius information indicating the radius of the circular trajectory and center position information indicating the position of the center of the circular trajectory.

[0153] 15 is an explanatory diagram for explaining an example of a processing flow of the system 10. Here, a state in which the information processing device 200 is not executing a simulation will be described as a starting state.

[0154] In step (step may be abbreviated as S) 102, the simulation unit 206 simulates the SL antenna 120 formed by the SL beam irradiated by the SL antenna 120 while the aircraft 100 is flying in a circle, based on the SL antenna performance information of the SL antenna 120 and the aircraft performance information of the aircraft 100 stored in the storage unit 202. In S104, the acquisition unit 204 acquires disaster information from the disaster information management device 400 as a target area to be provided.

[0155] In S106, the determination unit 208 determines the trajectory of the flying object 100 based on the disaster area information included in the disaster information acquired by the acquisition unit 204 in S104 and the simulation result of the simulation unit 206 simulating the SL wireless communication area 122 in S102, so that the disaster area indicated by the disaster area information is included in the SL wireless communication area 122 while the flying object 100 is flying in a circular flight. In S108, the control unit 210 controls the flying object 100 so that the flying object 100 flies in a circular flight on the trajectory of the flying object 100 determined by the determination unit 208 in S108. The flying object 100 starts forming the SL wireless communication area 122 by irradiating the SL beam using the SL antenna 120 so as to include the disaster area, in accordance with the control of the information processing device 200. Thereafter, the processing of the system 10 ends.

[0156] 16 is a schematic diagram showing an example of a hardware configuration of a computer 1200 functioning as the information processing device 200. A program installed in the computer 1200 can cause the computer 1200 to function as one or more "parts" of the device according to the present embodiment, or cause the computer 1200 to execute operations associated with the device according to the present embodiment or one or more "parts", and / or cause the computer 1200 to execute 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 execute 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 connected to each other by a host controller 1210. The computer 1200 also includes input / output units such as a communication 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 legacy input / output unit such as a ROM 1230 and a keyboard, which are connected to the input / output controller 1220 via an input / output chip 1240.

[0158] The CPU 1212 operates according to a program stored in the ROM 1230 and the RAM 1214, thereby controlling each unit. The graphic controller 1216 acquires image data generated by the CPU 1212 into a frame buffer or the like provided in the RAM 1214 or into 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 the programs or data 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 a program that depends 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, and the like.

[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, the RAM 1214, or the 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 brings about cooperation between the programs and the various types of hardware resources described above. An apparatus or method may be constructed by implementing operations or processing of information according to 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 in 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 a 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 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 in the recording medium and undergo information processing. The CPU 1212 may perform various types of processing on the 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 sequence of the program, and write back the results to the RAM 1214. The CPU 1212 may also search for information in a file, database, etc. in the recording medium. For example, when a plurality of entries each having an attribute value of a first attribute associated with an attribute value of a second attribute are stored in 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 plurality of 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 the computer 1200 or in the vicinity of the computer 1200. In addition, a recording medium such as a hard disk or a RAM provided in a server system connected to a dedicated communication network or the Internet can 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 embodiment 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, and may include integrated circuits (ICs) and / or discrete circuits. The programmable circuitry may include reconfigurable hardware circuits, such as, for example, field programmable gate arrays (FPGAs), programmable logic arrays (PLAs), and the like, 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 a computer readable medium having instructions stored thereon comprises an article of manufacture that includes instructions that can be executed to create means for performing the operations specified in the flowchart or block diagram. Examples of computer readable media may include electronic storage media, magnetic storage media, optical storage media, electromagnetic storage media, semiconductor storage media, etc. More specific examples of computer readable media may include floppy disks, diskettes, hard disks, random access memories (RAMs), read-only memories (ROMs), erasable programmable read-only memories (EPROMs or flash memories), electrically erasable programmable read-only memories (EEPROMs), static random access memories (SRAMs), compact disk read-only memories (CD-ROMs), digital versatile disks (DVDs), Blu-ray disks, memory sticks, integrated circuit cards, etc.

[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, either locally or over a wide area network (WAN) such as a local area network (LAN), the Internet, etc., to execute the computer-readable instructions to create a means for performing the operations specified in the flowchart or block diagram. Here, the computer may be a PC (personal computer), a tablet computer, a smartphone, a workstation, a server computer, a general-purpose computer, a special-purpose computer, etc., and 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 computer in the broad sense. In a distributed computing system, each of the multiple computers executes a part of a program, and the multiple computers collectively execute a program by transferring data during program execution between the computers as necessary.

[0170] Examples of processors include computer processors, central processing units (CPUs), processing units, microprocessors, digital signal processors, controllers, microcontrollers, etc. A computer may include one processor or multiple processors. In a multiprocessor system including multiple processors, each processor executes a part of a program, and the multiple processors execute a program collectively by passing data during program execution between the processors as necessary. For example, in executing multitasks, each of the multiple processors may execute a part of each task in small chunks by switching tasks for each time slice. In this case, which part of a program each processor executes changes dynamically. Which part of a program each of the multiple processors executes may be statically determined by programming that takes the multiprocessor into consideration.

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

[0172] It should be noted that the order of execution 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" or "prior to," and that the process may 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, it does not mean that the process must be performed in this order. [Explanation of symbols]

[0173] 10 system, 20 network, 40 gateway, 60 target area, 100 flying object, 120 SL antenna, 122 SL wireless communication area, 124 footprint, 126 footprint, 140 FL antenna, 150 orbit, 200 information processing device, 202 storage unit, 204 acquisition unit, 206 simulation unit, 208 determination unit, 210 control unit, 300 communication terminal, 400 disaster information management device, 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 for storing SL antenna performance information indicating the performance of a SL (Service Link) antenna, which is a collinear antenna, and aircraft performance information indicating the performance of an aircraft equipped with the SL antenna so that horizontally polarized waves are omnidirectional; an acquisition unit that acquires service area information indicating a service area of ​​a wireless communication service provided by the aircraft; a simulation unit that simulates an SL wireless communication area formed by an SL beam irradiated by the SL antenna while the aircraft is flying in a circle based on the SL antenna performance information and the aircraft performance information; a determination unit that determines a trajectory of the aircraft so that the provision target area is included in the SL wireless communication area while the aircraft is flying in a circular motion, based on the provision target area information and a simulation result obtained by simulating the SL wireless communication area by the simulation unit; An information processing device comprising:

2. The simulation unit simulates the SL wireless communication area formed by the SL beam while the aircraft is flying in a circular orbit, The determination unit determines a position of a center of a circular orbit of the aircraft so that the provision target area is included in the SL wireless communication area while the aircraft is flying in a circular orbit. The information processing device according to claim 1 .

3. the storage unit stores the SL antenna performance information including SL antenna gain information indicating an antenna gain of the SL antenna; The simulation unit simulates the SL wireless communication area formed by the SL beam while the aircraft is flying in a circular orbit by deriving inner and outer diameters of a footprint of the SL wireless communication area based on the SL antenna gain information. The information processing device according to claim 2 .

4. The simulation unit simulates the SL wireless communication area formed by the SL beam while the aircraft is flying in a circular orbit when the aircraft is at each of a plurality of flight altitudes, The determination unit determines a flight altitude of the aircraft so that the provision target area is included in the SL wireless communication area while the aircraft is flying in a circular orbit. The information processing device according to claim 2 .

5. the storage unit stores the aircraft performance information including minimum flight speed information indicating a minimum flight speed of the aircraft when it is flying in a turn, and allowable bank angle information indicating a allowable bank angle of the aircraft when it is flying in a turn, the simulation unit, when the flight speed of the aircraft is each of a plurality of flight speeds equal to or greater than the minimum flight speed indicated by the minimum flight speed information, derives a radius of a circular orbit of the aircraft when the bank angle of the aircraft is smaller than the permissible bank angle indicated by the permissible bank angle information, thereby simulating the SL wireless communication area formed by the SL beam while the aircraft is flying in a circular orbit when the flight speed of the aircraft is each of the flight speeds; The determination unit determines a flight speed of the aircraft and a radius of a circular orbit of the aircraft so that the provision target area is included in the SL wireless communication area while the aircraft is flying in a circular orbit. The information processing device according to claim 2 .

6. The acquisition unit acquires the provision target area information indicating the provision target areas at two different positions, The determination unit determines a trajectory of the aircraft so that the two provision target areas at different positions are included in the SL wireless communication area while the aircraft is flying in a circle. The information processing device according to claim 1 .

7. The storage unit further stores FL (Feeder Link) antenna performance information indicating the performance of an FL antenna, which is a collinear antenna, and installation position information indicating the installation position of a gateway installed on the ground, The simulation unit further simulates an FL wireless communication area formed by an FL beam irradiated by the FL antenna while the aircraft equipped with the FL antenna is flying in a circle so that horizontal polarization is omnidirectional based on the FL antenna performance information and the aircraft performance information, The determination unit determines a trajectory of the aircraft so that the provision target area is included in the SL wireless communication area and the installation position of the gateway is included in the FL wireless communication area while the aircraft is flying in a circle, based on the installation position information and a simulation result of the FL wireless communication area simulated by the simulation unit. The information processing device according to claim 1 .

8. A control unit that controls the flying object so that the flying object makes a turning flight along the trajectory determined by the determination unit. The information processing device according to claim 1 , further comprising:

9. The information processing apparatus according to claim 1 , wherein the acquisition unit acquires the provision target area information indicating the provision target area that is a disaster-stricken area that has been affected by a disaster.

10. A program for causing a computer to function as the information processing device according to claim 1 when executed by the computer.

11. An information processing device according to any one of claims 1 to 5; The flying object; An information processing system comprising:

12. 1. A computer-implemented information processing method, comprising: an acquisition step of acquiring service target area information indicating a service target area of ​​a wireless communication service provided by an aircraft equipped with the SL antenna so that the horizontally polarized wave of the SL antenna, which is a collinear antenna, is omnidirectional; a simulation step of simulating an SL wireless communication area formed by an SL beam irradiated by the SL antenna while the aircraft is flying in a circle, based on SL antenna performance information indicating the performance of the SL antenna and aircraft performance information indicating the performance of the aircraft, both stored in the computer; a determination step of determining a trajectory of the aircraft so that the provision target area is included in the SL wireless communication area while the aircraft is flying in a circular motion, based on the provision target area information and a simulation result of simulating the SL wireless communication area in the simulation step; An information processing method comprising:

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