Radio wave control device, radio wave control system, radio wave control method, and recording medium

Abstract

In order to achieve a radio wave control device capable of easily adjusting the strength of transmission power from the type of an antenna to be adhered to a support body, the radio wave control device according to the present invention comprises: an acquisition means for acquiring information transmitted by a plurality of terminals and pertaining to the reception power strength of radio waves received by the terminals, which communicate with a base station via a transmission antenna supported by a support body disposed on the radio-wave transmission surface side; a calculation means for calculating a media attenuation amount in the radio waves caused by the support body by referring to the reception power strength and a distance attenuation amount in the radio waves between the transmission antenna to the terminals; and a setting means for setting a correction amount for the transmission power strength of radio waves to be transmitted from the transmission antenna by referring to the media attenuation amount.

Description

Radio wave control device, radio wave control system, radio wave control method, and recording medium

[0001] The present disclosure relates to a radio wave control device, a radio wave control system, a radio wave control method, and a recording medium.

[0002] With the widespread adoption of the so-called 5G communication standard, which has significantly increased communication speeds and data volumes, the number of mobile terminals using 5G is expected to continue to increase. Accordingly, plans are underway to install many compact base stations in urban areas. In this case, it is desirable to optimize the radio wave output from the base station (transmitting antenna).

[0003] For example, Patent Document 1 discloses a technology in which reception quality at a communication terminal is measured, the measurement results are reported to a base station, and the base station switches the transmission rate based on the reported reception quality results so that the amount of interference to other communication terminals is within an acceptable range.

[0004] On the other hand, when installing a compact base station in an urban area as described above, a technique is known in which the transmitting antenna is attached to a support such as a glass window so as not to spoil the scenery. In such cases, the transmitted radio waves pass through the support, so the optimal radio wave output is set taking into account attenuation by the support.

[0005] Japanese Patent Application Laid-Open No. 2002-374205

[0006] Antennas that are attached to a support have a variety of support types, and the amount of attenuation caused by the support also varies depending on the type of support. Furthermore, this attenuation is caused by reflection and absorption by the support, and in some cases, a special adhesive layer is used to suppress reflection and absorption. Thus, in order to set the radio wave intensity while taking into account attenuation by the support, an engineer must actually install the antenna and make adjustments while measuring the transmitted power intensity, which requires a great deal of effort.

[0007] The present disclosure has been made in consideration of the above-mentioned problems, and one exemplary purpose thereof is to provide a technology that can easily adjust the transmission power intensity from an antenna that is attached to a support.

[0008] A radio wave control device according to an exemplary aspect of the present disclosure includes an acquisition means for acquiring information regarding the received power intensity of radio waves received by a plurality of terminals communicating with a base station via a transmitting antenna supported by a support body arranged on the transmitting side of the radio waves, a calculation means for calculating the amount of media attenuation of the radio waves caused by the support body by referring to the received power intensity and the amount of distance attenuation of the radio waves between the transmitting antenna and the terminals, and a setting means for setting a correction amount for the transmission power intensity of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation.

[0009] A radio wave control method according to an exemplary aspect of the present disclosure includes an acquisition process for acquiring information regarding the received power intensity of radio waves received by a plurality of terminals communicating with a base station via a transmitting antenna supported by a support body arranged on the transmitting side of the radio waves; a calculation process for calculating the amount of media attenuation of the radio waves caused by the support body by referring to the received power intensity and the amount of distance attenuation of the radio waves between the transmitting antenna and the terminals; and a setting process for setting the amount of correction for the transmission power intensity of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation.

[0010] A radio wave control system according to an exemplary aspect of the present disclosure includes a transmitting antenna supported by a support disposed on the transmitting side of the radio waves, an acquisition means for acquiring information regarding the received power intensity of radio waves transmitted by a plurality of terminals communicating with a base station via the transmitting antenna and received by the terminals, a calculation means for calculating the amount of media attenuation of the radio waves caused by the support by referring to the received power intensity and the amount of distance attenuation of the radio waves between the transmitting antenna and the terminals, and a setting means for setting a correction amount for the transmission power intensity of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation.

[0011] A radio wave control program recorded on a computer-readable recording medium according to an exemplary aspect of the present disclosure is a program that causes a computer to execute an acquisition process, a calculation process, and a setting process of a radio wave control method.

[0012] According to one exemplary aspect of the present disclosure, it is possible to provide a technique that can easily adjust the transmission power intensity from an antenna that is attached to a support body.

[0013] FIG. 1 is a block diagram showing the configuration of a radio wave control device 1 according to the present disclosure. FIG. 2 is a flow diagram showing the flow of a radio wave control method S1 according to the present disclosure. FIG. 3 is a block diagram showing the configuration of a radio wave control device 1A according to the present disclosure. FIG. 4 is a block diagram showing the configuration of a radio wave control system 2 according to the present disclosure. FIG. 5 is a schematic diagram showing the contents of data recorded in a calculation data table according to the present disclosure. FIG. 6 is a schematic diagram showing the configuration when a radio wave control device 1, 1A, etc. according to the present disclosure controls one transmitting antenna. FIG. 7 is a schematic diagram showing the configuration when a radio wave control device 1, 1A, etc. according to the present disclosure controls multiple transmitting antennas. FIG. 8 is a flow diagram showing the flow of a radio wave control method S2 according to the present disclosure. FIG. 9 is a block diagram showing the configuration of a computer that functions as a radio wave control device, etc. according to the present disclosure.

[0014] Below, exemplary embodiments of the present disclosure are described. However, the present disclosure is not limited to the exemplary embodiments shown below, and various modifications are possible within the scope of the claims. For example, embodiments obtained by appropriately combining the technologies (part or all of the devices, systems, or methods) employed in the exemplary embodiments shown below may also be included in the scope of the present disclosure. Furthermore, embodiments obtained by appropriately omitting some of the technologies employed in the exemplary embodiments shown below may also be included in the scope of the present disclosure. Furthermore, the effects mentioned in the exemplary embodiments shown below are examples of effects expected in the exemplary embodiments, and do not define the scope of the present invention. In other words, embodiments that do not exhibit the effects mentioned in the exemplary embodiments shown below may also be included in the scope of the present disclosure.

[0015] [First Exemplary Embodiment] A first exemplary embodiment, which is an example of an embodiment of the present disclosure, will be described in detail with reference to the drawings. This exemplary embodiment is a basic form for each of the exemplary embodiments described below. Note that the scope of application of each technique employed in this exemplary embodiment is not limited to this exemplary embodiment. That is, each technique employed in this exemplary embodiment can also be employed in other exemplary embodiments included in the present disclosure, to the extent that no particular technical obstacles arise. Furthermore, each technique shown in the drawings referenced to explain this exemplary embodiment can also be employed in other exemplary embodiments included in the present disclosure, to the extent that no particular technical obstacles arise.

[0016] (Configuration of Radio Wave Control Device 1) The configuration of the radio wave control device 1 will be described with reference to FIG. 1 . As mentioned above, in recent years, there has been an increase in the number of cases in which base stations or relay stations (sub-base stations) are installed in urban areas. In such cases, it is desirable to place the antenna in a less conspicuous manner than conventional transmitting antennas, in consideration of the urban landscape. For this reason, the transmitting antenna may be installed as part of a structure. For example, antennas that are attached to the inside of window glass of a building have been developed. This type of antenna, known as a glass antenna, is, for example, in the form of a transparent sheet including a conductor and configured to adhere via an adhesive layer to the window glass, which serves as a support placed on the radio wave transmission side. Alternatively, the glass antenna may be configured to be embedded inside the glass. In other words, radio waves from the antenna pass through the glass and are transmitted to multiple terminals. Therefore, the transmitted radio waves are attenuated by being partially reflected or absorbed by the glass. Furthermore, if a photovoltaic film (hereinafter referred to as a "solar cell") is installed on the glass, the radio waves from the antenna are attenuated by the solar cell. Therefore, it is desirable to adjust (add) the transmission power intensity to take this attenuation into account. The radio wave control device 1 is a device that adjusts the transmission power intensity of radio waves from such a transmitting antenna.

[0017] 1 is a block diagram showing the configuration of a radio wave control device 1. As shown in FIG. 1, the radio wave control device 1 includes an acquisition unit 11, a calculation unit 12, and a setting unit 13.

[0018] The acquisition unit 11 acquires information regarding the received power intensity of radio waves received by multiple terminals communicating with a base station via transmitting antennas supported by a support disposed on the radio wave transmission side. A transmitting antenna supported by a support is, for example, an antenna that is in close contact with or bonded to the support, as described above. The antenna may be flat or may include a curved portion. As described above, an example of the support is (window) glass, but is not limited to glass. The support may be any object capable of supporting a thin-layer or plate-shaped transmitting antenna. For example, the support may be a thin plate made of a non-dielectric material that has little effect on radio waves, such as a plastic plate made of resin, in addition to glass. The acquisition unit 11 is an example of an acquisition means described in the claims.

[0019] Each terminal communicates with a base station by receiving radio waves from the base station's transmitting antenna and transmitting the radio waves toward the base station's receiving antenna (not shown). The base station relays radio communications between a core network (CN) connected to the Internet, etc., and terminals via wireless communication. The base station is composed of, for example, a unit called a CU (Central Unit), a unit called a DU (Distributed Unit), and a unit called an RU (Radio Unit). The CU is a unit that controls the DU and RU and the connection with the core network. The DU is a unit that mainly controls signals. The RU is a unit that mainly controls the antenna output. The CU and DU may be located together, and are therefore also referred to as CU / DU. The radio wave control device 1 is located, for example, in the CU / DU, but the location where the radio wave control device 1 is located is not limited thereto and may be located, for example, together with the RU.

[0020] When communicating with a base station, each terminal transmits information about the received power strength of radio waves transmitted from a transmitting antenna to the receiving antenna of the base station. This transmission may be performed in response to a request from the base station to transmit received power strength information. The information about the received power strength is, for example, power strength expressed in dBm units. dBm is a numerical value expressed in decibels (dB) with 1 milliwatt (mW) of power as the reference value. This information is received by the receiving antenna of the base station, and the information is acquired by the acquisition unit 11.

[0021] The calculation unit 12 calculates the amount of medium attenuation of radio waves caused by the support by referring to the received power intensity and the amount of distance attenuation of radio waves between the transmitting antenna and the terminal. Distance attenuation is the amount of attenuation of radio waves transmitted from the transmitting antenna depending on the distance it takes to reach the terminal. Distance attenuation can be calculated, for example, using the free space loss formula. The distance from the transmitting antenna to the terminal can be calculated, for example, from the terminal's location information. The terminal's location information may be location information acquired by the terminal using a GPS function, for example. The acquisition unit 11 may acquire the terminal's location information transmitted by the terminal. In addition, in the case of a fixed terminal whose installation location is fixed, the location information is fixed, so the radio wave control device 1 may store the location information in advance as data. The calculation unit 12 can calculate the amount of distance attenuation using the free space loss formula, the Okumura-Hata model, the extended Hata model, or the like, from the transmitting antenna's location information and the terminal's location information. The calculation unit 12 is an example of a calculation means described in the claims.

[0022] The radio wave attenuation due to a support is the amount of attenuation of radio waves transmitted from a transmitting antenna when they pass through a medium such as a support, adhesive layer, or solar cell. When passing through a support, the radio waves are partially absorbed by the support (medium) itself and are also attenuated by reflection at the boundary surface of the support. The radio waves transmitted from the transmitting antenna reach the terminal at a portion attenuated by the medium and distance. Therefore, the calculation unit 12 calculates the media attenuation by subtracting the received power intensity and the distance attenuation from the transmission power intensity of the radio waves transmitted from the transmitting antenna. That is, the calculation unit 12 calculates the media attenuation using the following formula (1). In formula (1), the transmission power intensity is the initial transmission power intensity (initial output) from the transmitting antenna initially set by the RU. In other words, the initial transmission power intensity is the transmission power intensity before correction. The initial output power is set to a value that should be output from the antenna when there is no attenuation due to, for example, a support (such as window glass), adhesive layer, or solar cell. This value is designed based on the size of the area to be covered by the antenna and the balance with nearby base stations. The received power intensity is the received power intensity at the terminal acquired from the terminal by the acquisition unit 11. The distance attenuation is the attenuation calculated by the calculation unit 12 from the location information of the terminal. Medium attenuation = (initial transmission power intensity) - (received power intensity) - (distance attenuation) (1)

[0023] The setting unit 13 sets a correction amount (addition amount) for the transmission power strength of radio waves transmitted from the transmitting antenna by referring to the amount of medium attenuation. As described above, the calculation unit 12 calculates the amount of medium attenuation for each terminal. The setting unit 13 sets a correction amount for the transmission power strength of radio waves transmitted from the transmitting antenna by referring to these multiple amounts of medium attenuation. Several methods for setting the correction amount are possible. For example, the setting unit 13 may set the correction amount for the transmission power strength by referring to the smallest amount of medium attenuation among the calculated amounts of medium attenuation. For example, the setting unit 13 may set the smallest amount of medium attenuation itself as the correction amount. This is because factors other than distance attenuation and medium attenuation cannot be excluded as factors that cause the received power attenuation at the terminal, and the correction value is prevented from becoming greater than the amount of medium attenuation. The setting unit 13 is an example of a setting means recited in the claims.

[0024] By setting the correction amount to the smallest medium attenuation, it is possible to almost completely eliminate the risk of the correction amount exceeding the medium attenuation. However, just to be safe, an upper limit may be set so that the corrected transmission power intensity does not exceed the maximum output (permitted output) permitted by the license. For example, if the value obtained by adding the correction amount to the initial output exceeds the permitted output, the corrected transmission power intensity may be changed to the permitted output.

[0025] The set correction amount is transmitted from the radio wave control device 1 to the transmitting antenna output control device (corresponding to the RU described above). The RU controls the transmitting antenna so that it transmits radio waves at a new transmission power intensity obtained by adding the correction amount to the initial transmission power intensity. As described above, it is possible to mechanically adjust the transmission power intensity of the transmitting antenna to a more appropriate value. Note that the radio wave control device 1 does not need to adjust the transmission power intensity of only one transmitting antenna, and correction amounts may be set for multiple transmitting antennas. The setting method is similar for other transmitting antennas. The adjustment of transmission power intensity performed by the radio wave control device 1 may be performed as needed, not just at the initial operation of the transmitting antenna.

[0026] (Effects of the Radio Wave Control Device) As described above, the radio wave control device 1 includes an acquisition unit 11 that acquires information regarding the received power intensity of radio waves received by multiple terminals communicating with a base station via a transmitting antenna supported by a support disposed on the radio wave transmission side; a calculation unit 12 that calculates the amount of media attenuation of the radio waves caused by the support by referring to the received power intensity and the distance attenuation of the radio waves between the transmitting antenna and the terminal; and a setting unit 13 that sets a correction amount for the transmission power intensity of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation. Therefore, the radio wave control device 1 provides the advantage of easily adjusting the transmission power intensity from an antenna attached to a support. In conventional technology, the specifications of the supports supporting the antennas vary, making it impossible to predict the amount of media attenuation. Therefore, engineers had to adjust the correction amount while measuring the transmission power intensity outside the support. However, the radio wave control device 1 of this exemplary embodiment provides the advantage of being able to mechanically adjust the correction amount without performing such work.

[0027] (Flow of Radio Wave Control Method S1) Next, the flow of the radio wave control method S1 executed by the radio wave control device 1 will be described with reference to Fig. 2. Fig. 2 is a flow chart showing the flow of the radio wave control method S1. As shown in Fig. 2, the radio wave control method S1 includes steps S11 to S13.

[0028] Step S11 is an acquisition process for acquiring information about the received power strength of radio waves received by a plurality of terminals communicating with a base station via a transmitting antenna supported by a support disposed on the radio wave transmission side. The acquisition process is executed by the acquisition unit 11. The meanings of the support, received power strength, etc. are as explained in the radio wave control device 1.

[0029] Step S12 is a calculation process for calculating the amount of medium attenuation of radio waves caused by the support body by referring to the received power intensity and the amount of distance attenuation of radio waves between the transmitting antenna and the terminal. The calculation process is executed by the calculation unit 12. The meanings of the amount of distance attenuation, the amount of medium attenuation, etc. are as explained in the radio wave control device 1.

[0030] Step S13 is a setting process for setting a correction amount for the transmission power intensity of the radio wave transmitted from the transmitting antenna by referring to the amount of medium attenuation. The setting process is executed by the setting unit 13. Furthermore, the radio wave control method S1 may include an adjustment step for transmitting the correction amount to the RU (transmitting antenna control unit). The adjustment step may be executed by the setting unit 13.

[0031] (Effects of Radio Wave Control Method S1) As described above, radio wave control method S1 employs a configuration including: acquiring information regarding the received power intensity of radio waves received by a plurality of terminals communicating with a base station via a transmitting antenna supported by a support disposed on the radio wave transmission side, calculating the amount of media attenuation of the radio waves caused by the support by referring to the received power intensity and the amount of distance attenuation of the radio waves between the transmitting antenna and the terminal; and setting a correction amount for the transmission power intensity of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation. Therefore, radio wave control method S1 can achieve effects similar to those of the radio wave control device 1 described above.

[0032] [Second Exemplary Embodiment] (Configuration of Radio Wave Control Device 1A) A second exemplary embodiment, which is an example of an embodiment of the present disclosure, will be described in detail with reference to the drawings. Components having the same functions as those described in the above exemplary embodiment will be assigned the same reference numerals, and their description will be omitted as appropriate. The scope of application of each technology employed in this exemplary embodiment is not limited to this exemplary embodiment. That is, each technology employed in this exemplary embodiment can also be employed in other exemplary embodiments included in the present disclosure, to the extent that no particular technical obstacles arise. Furthermore, each technology shown in each drawing referenced to explain this exemplary embodiment can also be employed in other exemplary embodiments included in the present disclosure, to the extent that no particular technical obstacles arise.

[0033] 3 is a block diagram showing the configuration of a radio wave control device 1A according to this exemplary embodiment. As shown in the figure, the radio wave control device 1A includes an acquisition unit 11, a calculation unit 12, a setting unit 13, a communication unit 14, a display unit 15, at least one processor 16, and at least one memory 17. The radio wave control device 1A may also include a comparison unit 18. The function of the comparison unit 18 will be described later. The configurations (functions) of the acquisition unit 11, calculation unit 12, and setting unit 13 are the same as those of the acquisition unit 11, calculation unit 12, and setting unit 13 described in exemplary embodiment 1, and therefore will not be described again. The at least one processor 16 and memory 17 will also be described later.

[0034] The communication unit 14 communicates information with the CU, DU, and RU. For example, the communication unit 14 communicates with the CU, DU, or RU, receives information regarding the received power strength of radio waves received by the terminal, and transmits a set correction amount for the transmission power strength. Specifically, the communication unit 14 transmits the set correction amount for the transmission power strength to a transmission antenna output control device (RU). The transmission antenna output control device controls the output of the transmission antenna to increase by the correction amount. The communication unit 14 is an example of a communication means recited in the claims.

[0035] The display unit 15 displays the correction amount of the transmission power intensity set by the setting means, or the corrected transmission power intensity, on the display device (display) 60. The user can check the correction amount or the corrected transmission power intensity displayed on the display device. The display unit 15 may also display whether the radio wave control device 1A is functioning normally, or whether an abnormality has occurred in the radio wave control device 1A. The display unit 15 is an example of the display means described in the claims.

[0036] A calculation data table may be stored in the memory 17 of the radio wave control device 1A. FIG. 5 is a schematic diagram showing the contents of data recorded in the calculation data table. As an example, the calculation data table records the received power strength R (dBm), distance D (km), distance attenuation DA (dB), and medium attenuation MA (dB) as shown in FIG. 5. The received power strength R is the received power strength at the terminal acquired by the acquisition unit 11, the distance D is the distance between the transmitting antenna and the terminal, the distance attenuation is the attenuation due to the distance to the terminal, and the medium attenuation is the attenuation due to the support calculated by the calculation unit 12. These data are recorded in the data table for each terminal. Then, the setting unit 13 sets the correction amount for the transmitted power strength by referring to the medium attenuation.

[0037] (Effects of Radio Wave Control Device 1A) As described above, the radio wave control device 1A employs a configuration including the acquisition unit 11, calculation unit 12, setting unit 13, communication unit 14, display unit 15, at least one processor 16, and at least one memory 17. Therefore, in addition to the effects achieved by the radio wave control device 1, the radio wave control device 1A makes it possible to check the correction amount or post-correction transmission power intensity displayed on the display device. Another effect is that the user can check whether the radio wave control device 1A is functioning normally or whether an abnormality has occurred in the radio wave control device 1A.

[0038] [Third Exemplary Embodiment] (Configuration of Radio Wave Control System 2) Next, the configuration of the radio wave control system 2, which is an example of an embodiment of the present disclosure, will be described in detail with reference to the drawings. Components having the same functions as those described in the above exemplary embodiments will be assigned the same reference numerals, and their description will be omitted as appropriate. Note that the scope of application of each technology employed in this exemplary embodiment is not limited to this exemplary embodiment. In other words, each technology employed in this exemplary embodiment can also be employed in other exemplary embodiments included in the present disclosure, to the extent that no particular technical obstacles arise. Furthermore, each technology shown in each drawing referenced to explain this exemplary embodiment can also be employed in other exemplary embodiments included in the present disclosure, to the extent that no particular technical obstacles arise.

[0039] 4 is a block diagram showing the configuration of the radio wave control system 2. The radio wave control system 2 includes an acquisition unit 11, a calculation unit 12, and a setting unit 13 provided in the radio wave control device 1A, as well as a transmitting antenna 20 to be controlled. The radio wave control system 2 may further include a communication unit 14, a display unit 15, a comparison unit 18, a processor 16, and a memory 17. There may be multiple transmitting antennas 20. When there are multiple transmitting antennas 20, the radio wave control device 1A sets correction amounts for each of the multiple transmitting antennas individually. Furthermore, when multiple transmitting antennas are controlled, the data table shown in FIG. 5 is created for each transmitting antenna.

[0040] FIG. 6 is a schematic diagram showing a configuration in which a radio wave control device 1, 1A or a radio wave control system 2 (hereinafter referred to as "radio wave control device 1, 1A, etc.") controls one transmitting antenna. In the example shown in FIG. 6, a CU / DU 30, an RU 40, and a transmitting antenna 20 are arranged in one base station 100. The CU / DU 30 controls the connection with the core network (core) 50. The radio wave control device 1, 1A, etc. are arranged in the CU / DU 30. However, the CU / DU 30, the RU 40, and the transmitting antenna 20 do not need to be arranged in one base station 100. Furthermore, the arrangement of the radio wave control device 1, 1A, etc. is not limited to the example shown in the figure.

[0041] 7 is a schematic diagram showing a configuration in which a radio wave control device 1, 1A, etc. controls multiple transmission antennas. In the illustrated example, a CU / DU 30 disposed in a parent base station 100 controls multiple child base stations 101a, 101b, etc., each equipped with an RU 40 and a transmission antenna 20, and one radio wave control device 1, 1A, etc. is disposed in the CU / DU 30. However, the arrangement of the radio wave control device 1, 1A, etc. is not limited to this.

[0042] When the radio wave control device 1, 1A, etc. controls multiple transmitting antennas, not all of those transmitting antennas are necessarily supported by supports. If the transmitting antenna is independent, there is no media attenuation due to the supports, so there is no need to calculate a correction amount. Therefore, when there are multiple base stations including transmitting antennas, the acquisition unit 11 of the radio wave control system 2 and the radio wave control device 1, 1A may further acquire information on whether the transmitting antenna 20 is supported by a support. The acquisition unit 11 may be configured to receive this information from the transmitting antenna 20. Alternatively, the acquisition unit 11 may access a database of the transmitting antenna 20 to acquire this information. With this configuration, the acquisition unit 11 can acquire information on received power intensity only from terminals that receive radio waves from transmitting antennas supported by supports. Furthermore, the calculation unit 12 calculates the amount of media attenuation of radio waves due to the support of the transmitting antenna, and the setting unit 13 can set a correction amount for the transmission power intensity of radio waves transmitted from that transmitting antenna.

[0043] Furthermore, if the transmitting antenna 20 is a glass antenna, i.e., if it is supported by a support such as a window glass of a building, a thin-layer solar cell may be disposed between the transmitting antenna 20 and the support or on the outside of the support (the side from which the radio waves exit the support). The power generated by this solar cell can be supplied to the RU 40 and / or the CU / DU 30. This configuration reduces the amount of commercial power used and allows the solar cell to be placed in an inconspicuous location, thereby reducing the possibility of damaging the scenery. The radio wave control device or radio wave control system of this embodiment can correct the transmission power intensity, taking into account radio wave attenuation caused by the solar cell.

[0044] (Effects of Radio Wave Control System 2) As described above, the radio wave control system 2 employs a configuration including a transmitting antenna supported by a support disposed on the radio wave transmission side, an acquisition unit that acquires information regarding the received power intensity of radio waves transmitted from a plurality of terminals that communicate with a base station via the transmitting antenna and received by the terminals, a calculation unit that calculates the amount of media attenuation of the radio waves caused by the support by referring to the received power intensity and the amount of distance attenuation of the radio waves between the transmitting antenna and the terminals, and a setting unit that sets a correction amount for the transmission power intensity of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation. Therefore, the radio wave control system 2 can achieve effects equivalent to those achieved by the radio wave control device 1.

[0045] (Flow of Radio Wave Control Method S2) Next, the flow of radio wave control method S2 executed by radio wave control system 2 will be described with reference to the drawings. Fig. 8 is a flow diagram showing the flow of radio wave control method S2. As shown in Fig. 8, radio wave control method S2 includes steps S21 to S28. Note that radio wave control system 2 does not need to execute all of these steps.

[0046] Step S21 is an initial output setting process in which the operator installs a transmitting antenna supported by a support and sets a pre-designed initial output. The initial output setting process is performed by the operator based on a design value.

[0047] Step S22 is an acquisition process for acquiring the received power intensity from the transmitting antenna of the terminal and the location information of the terminal while the base station is in operation. The acquisition process is executed by the acquisition unit 11.

[0048] Step S23 is a distance calculation process in which the calculation unit 12 calculates the distance from the transmitting antenna to the terminal based on the terminal position information and the transmitting antenna position information.

[0049] Step S24 is a medium attenuation calculation process that calculates the medium attenuation (MA=A-DA-R) from the difference between the initial output (A (dBm)), the distance attenuation (DA), and the received power strength (R) from the terminal. The medium attenuation calculation process is executed by the calculation unit 12.

[0050] Step S25 is a selection process for adopting the smallest value of the amounts of medium attenuation calculated for each terminal. The selection process is executed by the setting unit 13. Step S25 is a step for setting the numerical value of the amount of correction, but as described above, it is not necessary to select the amount of correction in this manner, and the setting unit 13 may select the amount of correction using different selection criteria.

[0051] Step S26 is an output value setting process for setting the transmission power intensity of the antenna to a value (A+MA) obtained by increasing the output by the amount of medium attenuation. The output value setting process is executed by the setting unit 13.

[0052] Step S27 is a comparison process for comparing whether the set transmission power intensity is equal to or less than the permitted output. The comparison process is executed by the comparison unit 18. If it is determined in step S27 that the set transmission power intensity is equal to or less than the permitted output (step S27: YES), there is no problem, and the flow of the radio wave control method S2 ends. On the other hand, if it is determined in step S27 that the set transmission power intensity is not equal to or less than the permitted output (step S27: NO), the process proceeds to step S28.

[0053] In step S28, the transmission power intensity set in step S26 is forcibly changed to the permitted output, and the flow of radio wave control method S2 ends. Through the above processing, the transmission power intensity of the antenna is changed from the initial output, and radio waves are transmitted at the mechanically changed transmission power intensity.

[0054] Furthermore, even if the output value is forcibly changed to the maximum output specified by the license, the output minus the amount of medium attenuation becomes the maximum output that can be transmitted through the medium, so the amount of medium attenuation is guaranteed as a safety margin that does not exceed the maximum output specified by the license. As described above, according to the radio wave control device, radio wave control system, and radio wave control method of this embodiment, there is no risk that the set output will exceed the maximum output permitted by the license.

[0055] [Example of implementation by software] Some or all of the functions of the radio wave control device 1, 1A and the radio wave control system 2 (hereinafter also referred to as "each of the above devices") may be implemented by hardware such as an integrated circuit (IC chip), or by software.

[0056] In the latter case, each of the above devices is realized by, for example, a computer that executes instructions of a program, which is software that realizes each function. An example of such a computer (hereinafter referred to as computer C) is shown in Figure 9. Figure 9 is a block diagram showing the hardware configuration of computer C that functions as each of the above devices.

[0057] The computer C includes at least one processor C1 and at least one memory C2. The memory C2 stores a program P for causing the computer C to function as each of the above-mentioned devices. In the computer C, the processor C1 reads and executes the program P from the memory C2, thereby realizing the functions of each of the above-mentioned devices.

[0058] The processor C1 may be, for example, a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processor (DSP), a micro processing unit (MPU), a floating point number processing unit (FPU), a physics processing unit (PPU), a tensor processing unit (TPU), a quantum processor, a microcontroller, or a combination thereof. The memory C2 may be, for example, a flash memory, a hard disk drive (HDD), a solid state drive (SSD), or a combination thereof.

[0059] The computer C may further include a RAM (Random Access Memory) for expanding the program P during execution and for temporarily storing various data. The computer C may also include a communication interface for transmitting and receiving data to and from other devices. The computer C may also include an input / output interface for connecting input / output devices such as a keyboard, a mouse, a display, and a printer.

[0060] The program P can also be recorded on a non-transitory, tangible recording medium M that can be read by the computer C. Such a recording medium M can be, for example, a tape, a disk, a card, a semiconductor memory, or a programmable logic circuit. The computer C can acquire the program P via such a recording medium M. The program P can also be transmitted via a transmission medium. Such a transmission medium can be, for example, a communication network or broadcast waves. The computer C can also acquire the program P via such a transmission medium.

[0061] Furthermore, the functions of each of the devices may be realized by a single processor provided in a single computer, by multiple processors provided in a single computer working in cooperation, or by multiple processors provided in each of multiple computers working in cooperation. Furthermore, the programs for causing each of the devices to realize the functions may be stored in a single memory provided in a single computer, or may be distributed and stored in multiple memories provided in a single computer, or may be distributed and stored in multiple memories provided in each of multiple computers.

[0062] [Appendix 1] The present disclosure includes the technologies described in the following appendices. However, the present disclosure is not limited to the technologies described in the following appendices, and various modifications are possible within the scope of the claims. (Appendix 1) A radio wave control device comprising: an acquisition means for acquiring information regarding the received power intensity of radio waves transmitted from a plurality of terminals communicating with a base station via a transmitting antenna supported by a support disposed on the radio wave transmission side and received by the terminals; a calculation means for calculating the amount of media attenuation of the radio waves caused by the support by referring to the received power intensity and the amount of distance attenuation of the radio waves between the transmitting antenna and the terminals; and a setting means for setting a correction amount for the transmission power intensity of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation.

[0063] (Supplementary Note 2) The radio wave control device according to Supplementary Note 1, wherein the calculation means calculates the amount of medium attenuation by subtracting the received power intensity and the amount of distance attenuation from the transmission power intensity of the radio wave transmitted from the transmitting antenna.

[0064] (Supplementary Note 3) The radio wave control device according to Supplementary Note 1 or 2, wherein the calculation means calculates the amount of medium attenuation for each of the terminals, and the setting means sets the amount of correction for the transmission power intensity using the smallest amount of medium attenuation among the calculated amounts of medium attenuation.

[0065] (Supplementary Note 4) The radio wave control device according to any one of Supplementary Notes 1 to 3, further comprising a display unit that displays the correction amount of the transmission power intensity set by the setting unit, or the transmission power intensity after correction.

[0066] (Supplementary Note 5) The radio wave control device according to any one of Supplementary Notes 1 to 4, wherein, when there are multiple base stations including the transmitting antenna, the acquisition means further acquires information on whether the transmitting antenna is a transmitting antenna supported by the support body.

[0067] (Supplementary Note 6) The radio wave control device according to any one of Supplementary Notes 1 to 5, wherein the acquisition unit further acquires location information of the terminal transmitted by the terminal.

[0068] (Supplementary Note 7) The radio wave control device according to any one of Supplementary Notes 1 to 6, further comprising a communication means for transmitting the set correction amount of the transmission power intensity to the transmission antenna output control device.

[0069] (Supplementary Note 8) A radio wave control system comprising: a transmitting antenna supported by a support placed on the transmitting side of the radio waves; an acquisition means for acquiring information relating to the received power intensity of radio waves transmitted by a plurality of terminals communicating with a base station via the transmitting antenna and received by the terminals; a calculation means for calculating the amount of media attenuation of the radio waves caused by the support by referring to the received power intensity and the amount of distance attenuation of the radio waves between the transmitting antenna and the terminals; and a setting means for setting a correction amount for the transmission power intensity of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation.

[0070] (Supplementary Note 9) The radio wave control system according to Supplementary Note 8, wherein the calculation means calculates the amount of medium attenuation by subtracting the received power intensity and the amount of distance attenuation from the transmission power intensity of the radio wave transmitted from the transmitting antenna.

[0071] (Supplementary Note 10) The radio wave control system according to Supplementary Note 8 or 9, wherein the calculation means calculates the amount of medium attenuation for each of the terminals, and the setting means sets the amount of correction for the transmission power intensity using the smallest amount of medium attenuation among the calculated amounts of medium attenuation.

[0072] (Supplementary Note 11) The radio wave control system according to any one of Supplementary Notes 8 to 10, further comprising a display unit that displays the correction amount of the transmission power intensity set by the setting unit, or the transmission power intensity after correction.

[0073] (Supplementary Note 12) A radio wave control system according to any one of Supplementary Notes 8 to 11, wherein, when there are multiple base stations including the transmitting antenna, the acquisition means further acquires information as to whether the transmitting antenna is a transmitting antenna supported by the support body.

[0074] (Supplementary Note 13) The radio wave control system according to any one of Supplementary Notes 8 to 12, wherein the acquisition means further acquires location information of the terminal transmitted by the terminal.

[0075] (Supplementary Note 14) The radio wave control system according to any one of Supplementary Notes 8 to 13, further comprising a communication means for transmitting the set correction amount of the transmission power intensity to the transmission antenna output control device.

[0076] (Supplementary Note 15) A radio wave control method, in which at least one processor acquires information regarding the received power intensity of radio waves received by a plurality of terminals communicating with a base station via a transmitting antenna supported by a support disposed on the transmitting side of the radio waves, calculates the amount of media attenuation of the radio waves caused by the support by referring to the received power intensity and the amount of distance attenuation of the radio waves between the transmitting antenna and the terminals, and sets a correction amount for the transmission power intensity of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation.

[0077] (Supplementary Note 16) The radio wave control method according to Supplementary Note 15, wherein in calculating the amount of medium attenuation, the at least one processor calculates the amount of medium attenuation by subtracting the received power intensity and the distance attenuation from the transmission power intensity of the radio wave transmitted from the transmitting antenna.

[0078] (Supplementary Note 17) The radio wave control method according to Supplementary Note 15 or 16, wherein, in calculating the amount of medium attenuation, the at least one processor calculates the amount of medium attenuation for each of the terminals, and, in setting the amount of correction for the transmission power intensity, sets the amount of correction for the transmission power intensity using the smallest amount of medium attenuation among the calculated amounts of medium attenuation.

[0079] (Supplementary Note 18) The radio wave control method according to any one of Supplementary Notes 15 to 17, wherein the at least one processor displays the correction amount of the transmission power intensity set in setting the correction amount of the transmission power intensity, or the transmission power intensity after correction.

[0080] (Supplementary Note 19) The radio wave control method according to any one of Supplementary Notes 15 to 18, wherein, when there are multiple base stations including the transmitting antenna, the at least one processor, in acquiring the information on the received power strength, further acquires information on whether the transmitting antenna is a transmitting antenna supported by the support.

[0081] (Supplementary Note 20) The radio wave control method according to any one of Supplementary Notes 15 to 19, wherein in acquiring the information on the received power strength, the at least one processor further acquires location information of the terminal transmitted by the terminal.

[0082] (Supplementary Note 21) The radio wave control method according to any one of Supplementary Notes 15 to 20, wherein the at least one processor further transmits a correction amount of the set transmission power intensity to a transmission antenna output control device.

[0083] (Appendix 22) A non-transitory computer-readable recording medium having recorded thereon a radio wave control program for causing a computer to operate as a radio wave control device described in any one of Appendices 1 to 7, the radio wave control program causing the computer to function as each of the means.

[0084] (Supplementary Note 23) The radio wave control device according to any one of Supplementary Notes 1 to 7, wherein the support is glass, and the transmitting antenna supported by the glass is a glass antenna.

[0085] [Appendix 2] The present disclosure includes the technologies described in the following appendices. However, the present disclosure is not limited to the technologies described in the following appendices, and various modifications are possible within the scope of the claims.

[0086] (Supplementary Note 24) A radio wave control device including at least one processor, the at least one processor executing an acquisition process of acquiring information on received power intensity of radio waves transmitted by a plurality of terminals communicating with a base station via a transmitting antenna supported by a support disposed on a transmitting surface side of the radio waves and received by the terminals, a calculation process of calculating a media attenuation of the radio waves caused by the support by referring to the received power intensity and an amount of distance attenuation of the radio waves between the transmitting antenna and the terminals, and a setting process of setting a correction amount for the transmission power intensity of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation. Note that the radio wave control device may further include a memory. Also, the memory may store a program for causing the at least one processor to execute each of the processes.

[0087] (Supplementary Note 25) The radio wave control device according to Supplementary Note 24, wherein in the calculation process, the at least one processor calculates the medium attenuation by subtracting the received power intensity and the distance attenuation from the transmission power intensity of the radio wave transmitted from the transmitting antenna.

[0088] (Supplementary Note 26) The radio wave control device according to Supplementary Note 24 or 25, wherein the at least one processor calculates the amount of medium attenuation for each of the terminals in the calculation process, and sets the amount of correction for the transmission power intensity using the smallest amount of medium attenuation among the calculated amounts of medium attenuation in the setting process.

[0089] (Supplementary Note 27) The radio wave control device according to any one of Supplementary Notes 24 to 26, wherein the at least one processor further executes a display process to display a correction amount of the transmission power intensity set by the setting process or the transmission power intensity after the correction.

[0090] (Supplementary Note 28) The radio wave control device according to any one of Supplementary Notes 24 to 27, wherein, when there are multiple base stations including the transmitting antenna, the at least one processor further acquires information regarding whether the transmitting antenna is a transmitting antenna supported by the support body in the acquisition process.

[0091] (Supplementary Note 29) The radio wave control device according to any one of Supplementary Notes 24 to 28, wherein in the acquisition process, the at least one processor further acquires location information of the terminal transmitted by the terminal.

[0092] (Supplementary Note 30) The radio wave control device according to any one of Supplementary Notes 24 to 29, wherein the at least one processor further executes a communication process of transmitting a set correction amount of the transmission power intensity to a transmission antenna output control device.

[0093] (Supplementary Note 31) A non-transitory recording medium having recorded thereon a program that causes a computer to function as a radio wave control device, the program causing the computer to execute the following processes: an acquisition process that acquires information regarding the received power intensity of radio waves received by a plurality of terminals that communicate with a base station via a transmitting antenna supported by a support placed on the radio wave transmission side; a calculation process that calculates the amount of media attenuation of the radio waves caused by the support by referring to the received power intensity and the amount of distance attenuation of the radio waves between the transmitting antenna and the terminals; and a setting process that sets the amount of correction for the transmission power intensity of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation.

[0094] This application claims priority based on Japanese Patent Application No. 2024-123456, filed on July 30, 2024, the disclosure of which is incorporated herein in its entirety by reference.

[0095] DESCRIPTION OF SYMBOLS 1, 1A... Radio wave control device 11... Acquisition unit 12... Calculation unit 13... Setting unit 14... Communication unit 15... Display unit 16... Processor 17... Memory 18... Comparison unit 20... Transmitting antenna 30... CU / DU 40... RU 50... Core 60... Display 100... (Parent) base station 101... Child base station 2... Radio wave control system

Claims

1. A radio wave control device comprising: an acquisition means for acquiring information regarding the received power intensity of radio waves received by a plurality of terminals communicating with a base station via a transmitting antenna supported by a support placed on the transmitting side of the radio waves; a calculation means for calculating the amount of media attenuation of the radio waves caused by the support by referring to the received power intensity and the amount of distance attenuation of the radio waves between the transmitting antenna and the terminals; and a setting means for setting a correction amount for the transmission power intensity of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation.

2. A radio wave control device according to claim 1, wherein said calculation means calculates said medium attenuation by subtracting said received power intensity and said distance attenuation from the transmission power intensity of the radio wave transmitted from said transmitting antenna.

3. A radio wave control device as described in claim 1 or 2, wherein the calculation means calculates the amount of medium attenuation for each terminal, and the setting means sets the correction amount for the transmission power intensity using the smallest amount of medium attenuation among the calculated amounts of medium attenuation.

4. A radio wave control device according to any one of claims 1 to 3, further comprising display means for displaying the correction amount of the transmission power intensity set by the setting means, or the transmission power intensity after correction.

5. A radio wave control device as claimed in any one of claims 1 to 4, wherein, when there are multiple base stations including the transmitting antenna, the acquisition means further acquires information as to whether the transmitting antenna is a transmitting antenna supported by the support.

6. A radio wave control device according to any one of claims 1 to 5, wherein the acquisition means further acquires location information of the terminal transmitted by the terminal.

7. A radio wave control device according to any one of claims 1 to 6, further comprising communication means for transmitting the set correction amount of the transmission power intensity to the transmission antenna output control device.

8. A radio wave control device according to any one of claims 1 to 7, wherein the support is glass, and the transmitting antenna supported by the glass is a glass antenna.

9. A radio wave control system comprising: a transmitting antenna supported by a support placed on the transmitting side of the radio waves; an acquisition means for acquiring information regarding the received power intensity of radio waves transmitted by a plurality of terminals communicating with a base station via the transmitting antenna and received by the terminals; a calculation means for calculating the amount of media attenuation of the radio waves caused by the support by referring to the received power intensity and the amount of distance attenuation of the radio waves between the transmitting antenna and the terminals; and a setting means for setting a correction amount for the transmission power intensity of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation.

10. A radio wave control method, comprising: acquiring information regarding the received power strength of radio waves transmitted by a plurality of terminals communicating with a base station via a transmitting antenna supported by a support placed on the transmitting side of the radio waves and received by the terminals; calculating the amount of media attenuation of the radio waves caused by the support by referring to the received power strength and the amount of distance attenuation of the radio waves between the transmitting antenna and the terminals; and setting a correction amount for the transmission power strength of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation.

11. A radio wave control method according to claim 10, wherein in calculating the amount of media attenuation, the amount of media attenuation is calculated by subtracting the received power intensity and the amount of distance attenuation from the transmission power intensity of the radio wave transmitted from the transmitting antenna.

12. A radio wave control method according to claim 10 or 11, wherein in calculating the amount of medium attenuation, the amount of medium attenuation is calculated for each terminal, and in setting the amount of correction for transmission power intensity, the smallest amount of medium attenuation among the calculated amounts of medium attenuation is used to set the amount of correction for transmission power intensity.

13. A radio wave control method according to any one of claims 10 to 12, wherein the correction amount of the transmission power intensity set in setting the correction amount of the transmission power intensity, or the transmission power intensity after correction, is displayed.

14. A radio wave control method according to any one of claims 10 to 13, wherein, when there are multiple base stations including the transmitting antenna, in acquiring information relating to the received power strength, information as to whether the transmitting antenna is a transmitting antenna supported by the support body is further acquired.

15. A radio wave control method according to any one of claims 10 to 14, wherein, in obtaining the information relating to the received power strength, location information of the terminal transmitted by the terminal is further obtained.

16. A radio wave control method according to any one of claims 10 to 15, further comprising transmitting the set correction amount for the transmission power intensity to a transmission antenna output control device.

17. A non-transitory computer-readable recording medium having recorded thereon a program for causing a computer to execute the following steps: an acquisition process for acquiring information regarding the received power strength of radio waves transmitted by a plurality of terminals communicating with a base station via a transmitting antenna supported by a support placed on the transmitting side of the radio waves and received by the terminals; a calculation process for calculating the amount of media attenuation of the radio waves caused by the support by referring to the received power strength and the amount of distance attenuation of the radio waves between the transmitting antenna and the terminals; and a setting process for setting the amount of correction for the transmission power strength of the radio waves transmitted from the transmitting antenna by referring to the amount of media attenuation.

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