WO2021085625A1

WO2021085625A1 - Wireless communication structure

Info

Publication number: WO2021085625A1
Application number: PCT/JP2020/040921
Authority: WO
Inventors: 浩樹濱田; 唯澄三橋; 伸彦服部; 太志鍵本; 崇弘望月
Original assignee: 古河電気工業株式会社
Priority date: 2019-10-30
Filing date: 2020-10-30
Publication date: 2021-05-06
Also published as: JPWO2021085625A1

Abstract

Provided is a wireless communication structure having superior wireless communication capabilities, offering high freedom in location for installing a wireless base station device, allowing a large number of wireless base station devices to be installed with high density in an entire area for communication, and providing high wireless base station device maintainability. The wireless communication structure is provided with a lid member installed in an opening portion provided in the ground, and a communication line and a power line which are accommodated in a lower space located under the lid member in the direction of gravity. The lid member or the lower space has disposed therein at least some of the constituent elements of a wireless base station device having a radio-wave emitting unit and/or a radio-wave receiving unit. At least a part of the lid member which adjoins the radio-wave emitting unit and/or the radio-wave receiving unit or which is located above the radio-wave emitting unit and/or the radio-wave receiving unit accommodated in the lower space is formed of resin.

Description

Wireless communication structure

The present invention is a wireless communication structure including a wireless base station apparatus, and at least some of the components constituting the wireless base station apparatus are embedded in a space located below the ground in the direction of gravity. It is about the structure.

In recent years, in anticipation of the further development of the information and communication society, communication means that cooperate with traffic safety systems and autonomous driving systems are being studied. In addition, from the viewpoint of improving the landscape, promotion of the elimination of utility poles is being considered. Therefore, power lines such as power cables and communication lines such as optical fiber cables may be wired in a state of being buried underground in the road.

In addition, a wireless device equipped with an antenna may be installed in a power line such as a power cable buried in the basement of a road or a communication line such as an optical fiber cable. The wireless device equipped with the antenna is buried in the underground space of the road, for example, inside a manhole or the like. Since the manhole is made of a metal member and the metal member does not transmit radio waves, the manhole may cause radio wave interference. Therefore, when a wireless device equipped with an antenna is housed inside a manhole or the like, it is required to efficiently radiate radio waves from the inside of the underground space to the ground.

Therefore, a support member attached to an opening provided on the ground, a lid member supported by the support member that can open and close the opening, and an antenna device arranged inside an underground space located below the opening. And a communication device connected to the antenna device, in the antenna device, the main axis of the radiation beam is the boundary between the inner peripheral surface of the underground space and the support member, or the outer peripheral edge of the support member. A wireless communication structure has been proposed which is arranged so as to pass through the boundary with the ground (Patent Document 1). In Patent Document 1, radio waves are efficiently radiated from the inside of the underground space to the ground by transmitting radio waves while avoiding metal manholes, without performing special processing on the lid member and the support member. is there.

However, in Patent Document 1, since the communication device transmits radio waves while avoiding metal manholes, there is a problem that the radiation direction of radio waves is limited. Further, since the metal manhole is heavy, there is a problem in workability at the time of installation and maintenance of the communication device.

On the other hand, the 5th generation mobile communication system (5G communication system), which is currently being promoted, has a problem that the communication range in high frequency communication is narrow. In a 5G communication system, in order to prevent the occurrence of a communication dead zone due to a narrow communication range, it is required to arrange a large number of small radio base stations over the entire communication target area.

However, in the wireless communication structure using the internal space of the manhole as in Patent Document 1, the installation of the communication device is limited to the place where the manhole is installed, so that the degree of freedom of the place where the communication device is installed is low and communication is performed. There is a problem that a large number of communication devices cannot be installed at high density over the entire target area. Further, since the installation position of the manhole is limited, it is difficult to relocate the communication device even if the radio wave interference of the communication device occurs due to the installation of a new building or the like, and there is a problem in the maintainability of the communication device.

International Publication No. 2015/156906

The present invention has been made in view of the above circumstances, has excellent wireless communication performance, has excellent flexibility in the installation location of wireless base station devices, and has a high number of wireless base station devices over the entire communication target area. It is an object of the present invention to provide a wireless communication structure that can be installed at a high density, has excellent maintainability of the wireless base station device, and has excellent workability during installation and maintenance of the wireless base station device.

The gist structure of the present invention is as follows.
[1] A lid member installed in an opening provided on the ground and
A communication line and a power line housed inside a lower space located below the lid member in the direction of gravity are provided.
At least some of the components constituting the radio base station device having the radio wave transmitting unit and / or the radio wave receiving unit are arranged in the lid member or the lower space.
The lid member includes at least a portion in contact with the radio wave transmitting portion and / or the radio wave receiving portion, or a portion located above the radio wave transmitting portion and / or the radio wave receiving portion housed in the lower space. , Radio communication structure made of resin.
[2] The radio base station device has a radio communication unit to which the radio wave transmitting unit and / or the radio wave receiving unit is connected, and a signal processing unit to which the radio communication unit is connected [1]. ] The wireless communication structure described in.
[3] The wireless communication structure according to [2], wherein the wireless communication unit is arranged inside a box communicating with the lower space.
[4] The wireless communication unit is arranged inside the housing of a ground-mounted transformer installed on the ground in the vicinity of the radio wave transmitting unit and / or the radio wave receiving unit [2]. Wireless communication structure.
[5] The wireless communication structure according to [2], wherein the wireless communication unit is arranged inside a building installed on the ground near the radio wave transmitting unit and / or the radio wave receiving unit.
[6] The wireless communication structure according to [2], wherein the wireless communication unit is arranged in the lower space.
[7] Each of the lower spaces is detachably provided with respect to the opening, and is formed by the plurality of lid members arranged in the extending direction of the communication line and the power line.
The plurality of lid members include a first lid member in which the radio wave transmitting unit and / or the radio wave receiving unit is arranged, and a second lid member in which the radio wave transmitting unit and / or the radio wave receiving unit is not arranged. Have,
The first lid member and the second lid member are described in any one of [1] to [6], wherein the arrangement of the communication line and the power line in the opening can be changed from each other in the extending direction. Wireless communication structure.
[8] The wireless communication structure according to any one of [1] to [7], wherein the entire lid member is made of resin.
[9] The wireless communication structure according to any one of [1] to [8], wherein the bottom surface portion and the side wall portion of the lower space are made of resin.
[10] The wireless communication structure according to any one of [1] to [9], wherein the average thickness of the lid member is 2.0 cm or more and 20 cm or less.
[11] The wireless communication structure according to any one of [1] to [10], wherein an uneven portion or a convex portion is provided on the surface of the lid member on the upper side in the direction of gravity.
[12] The wireless communication structure according to any one of [1] to [10], wherein a dielectric lens is further provided on the surface of the lid member on the lower side in the direction of gravity.
[13] The wireless communication structure according to any one of [1] to [12], wherein the lid member and the lower space extend along the extension direction of the road surface.
[14] The wireless communication structure according to any one of [1] to [13], wherein the resin is at least one selected from the group consisting of a polyolefin resin and a polyester resin.

In the above aspect [1], the communication line, the power line, and the main body of the radio base station device connected to the communication line and the power line are all spaces below the ground on which the lid member is installed (lower space). It is installed in. The radio wave transmitting unit and / or radio wave receiving unit of the radio base station apparatus is arranged in a lid member or a space below. The lid member functions as a top plate in the lower space. In addition, the radio base station device can communicate with the communication device on the ground. In addition, in this specification, "directly above the radio wave transmitting part and / or the radio wave receiving part" means the direction parallel to the gravitational direction and above the gravitational direction with respect to the radio wave transmitting part and / or the radio wave receiving part. To do.

In the above aspect [8], when the entire lid member is made of resin, the lower space is formed in the internal space of the resin container buried underground with the lid member exposed from the ground. ..

According to the aspect of the present invention, at least in the lid member, at least above the radio wave transmitting part and / or the radio wave receiving part housed in the portion where the radio wave transmitting part and / or the radio wave receiving part is arranged or in the lower space. Since the location is made of resin and the resin has excellent radio wave transmission, even if the wireless base station device is stored in the space below the ground (that is, the underground space), the degree of freedom in the direction of radio wave transportation Can be improved and excellent wireless communication performance can be demonstrated. Further, according to the aspect of the present invention, if a lid member having a resin portion is provided, a lower space in which the wireless base station device is housed can be formed, so that the degree of freedom in the installation location of the wireless base station device is excellent and communication is performed. A large number of wireless base station devices can be installed at high density over the entire target area. If all the components of the radio base station device cannot be installed in the lower space, the radio wave transmitting unit and / or the radio wave receiving unit and the radio communication unit are arranged in the lower space, and the signal processing unit is placed in the vicinity of the lower space. By installing it, the degree of freedom of the installation location of the radio wave transmission / reception point for communication is excellent, and a large number of wireless base station devices can be installed at high density over the entire communication target area. Further, according to the aspect of the present invention, if a lid member having a resin portion is provided, a lower space in which the wireless base station device is housed can be formed, so that radio waves can be transmitted to the wireless base station device by installing a new building or the like. Even if a failure occurs, it is easy to select a relocation location in the space below the wireless base station device, and the wireless base station device is excellent in maintainability.

Further, according to the aspect of the present invention, since the lid member has a resin portion, the weight is reduced, so that the workability at the time of installation, maintenance, etc. of the wireless base station device is excellent. Further, according to the aspect of the present invention, since the communication line, the power line, and the radio base station device connected to the communication line and the power line are housed in the space below the ground, the landscape is not impaired.

According to the aspect of the present invention, since the bottom surface portion and the side wall portion of the lower space are formed of resin, the lower space is provided with a resin container having a shape in the longitudinal direction along the extension direction of the communication line and the power line. Since it can be formed, the formation of the lower space is facilitated, and the degree of freedom in the installation location of the radio base station device and the maintainability of the radio base station device are further improved.

According to the aspect of the present invention, when the average thickness of the lid member is 2.0 cm or more and 20 cm or less, the mechanical strength and the radio wave transmission of the lid member installed on the ground are improved in a well-balanced manner.

According to the aspect of the present invention, by providing the uneven portion or the convex portion on the surface of the lid member on the upper side in the direction of gravity, it is possible to prevent an obstacle from being placed on the lid member installed on the ground. In addition, it is possible to prevent people from entering. Further, the uneven portion provided on the surface of the lid member on the upper side in the direction of gravity can impart a function as a Braille block. Further, the convex portion provided on the surface of the lid member on the upper side in the direction of gravity can refract the radio wave radiated from the radio base station device to carry the radio wave over a wider area, and further, rainwater or the like can be transmitted to the lid member. Can be prevented from accumulating in.

According to the aspect of the present invention, since the dielectric lens is provided on the lower surface of the lid member in the direction of gravity, the radio waves radiated from the radio base station device are refracted and reflected, and the radio waves are spread over a wider area. Can be transported.

It is explanatory drawing of the state in which the wireless communication structure which concerns on 1st Embodiment of this invention extends along the extension direction of a road surface. It is explanatory drawing of the front view of the wireless communication structure which concerns on 1st Embodiment of this invention. It is explanatory drawing of the concept of relocating the wireless base station apparatus of the wireless communication structure which concerns on 1st Embodiment of this invention. It is explanatory drawing of the front view of the wireless communication structure which concerns on 2nd Embodiment of this invention. It is explanatory drawing of the front view of the wireless communication structure which concerns on 3rd Embodiment example of this invention. It is explanatory drawing of the front view of the wireless communication structure which concerns on 4th Embodiment of this invention. It is explanatory drawing of the front view of the wireless communication structure which concerns on 5th Embodiment of this invention. It is explanatory drawing of the front view of the wireless communication structure which concerns on 6th Embodiment of this invention. It is explanatory drawing of the front view of the wireless communication structure which concerns on 7th Embodiment of this invention. It is explanatory drawing of the front view of the wireless communication structure which concerns on 8th Embodiment of this invention. It is explanatory drawing of the front view of the wireless communication structure which concerns on 9th Embodiment of this invention. It is a schematic explanatory drawing of the wireless communication structure which concerns on 10th Embodiment of this invention. FIG. 5 is an explanatory view of a front view of a wireless communication structure in which a wireless communication unit is arranged outside the lower space according to the tenth embodiment of the present invention. It is explanatory drawing of the front view of the wireless communication structure which arranges the wireless communication part in the lower space which concerns on 10th Embodiment of this invention. It is explanatory drawing of the front view of the wireless communication structure which concerns on 11th Embodiment of this invention. It is explanatory drawing of the plane view of the wireless communication structure which concerns on 11th Embodiment of this invention. It is explanatory drawing of the front view which shows the other example of the main body part of the wireless communication structure which concerns on 11th Embodiment of this invention. It is explanatory drawing of the plan view which shows the other example of the main body part of the wireless communication structure which concerns on 11th Embodiment of this invention. It is a figure which shows the outline of the state which the accommodation unit which concerns on the 12th Embodiment of this invention is applied to a road. It is a figure which shows typically the wireless communication system which used the wireless communication apparatus of the twelfth embodiment of this invention.

Hereinafter, the wireless communication structure according to the first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram of a state in which the wireless communication structure according to the first embodiment of the present invention extends along the extension direction of the road surface. FIG. 2 is an explanatory view of a front view of the wireless communication structure according to the first embodiment of the present invention. FIG. 3 is an explanatory diagram of a concept of relocating a wireless base station device having a wireless communication structure according to an example of the first embodiment of the present invention.

As shown in FIGS. 1 and 2, in the wireless communication structure 1 according to the first embodiment of the present invention, the lid member 10 installed in the opening 101 provided in the ground 100 and the lid member 10 downward in the gravity direction. The communication line 30 housed inside the lower space 20 located in, the power line 40 housed inside the lower space 20 located below the lid member 10 in the direction of gravity, and the radio wave housed inside the lower space 20. It includes a radio base station device 50 having a transmitting unit and / or a radio wave receiving unit (not shown) and a main body 51 housed inside the lower space 20. The lid member 10 is a member that partitions between the ground surface and the lower space 20.

From the above, the communication line 30 and the power line 40 are attached to the wireless base station device 50. In the wireless communication structure 1 provided with the radio wave transmitting unit and / or the radio wave receiving unit housed inside the lower space 20, the radio wave transmitting unit and / or the radio wave receiving unit is, for example, in the main body 51 of the radio base station device 50. Since it is built in, it is stored inside the lower space 20.

The wireless base station device 50 is connected to a communication line 30 such as an optical fiber via, for example, an optical connection means 31. The connection means 31 enables signals to be exchanged between the radio base station device 50 and the communication line 30. Further, the radio base station device 50 is connected to the power line 40 via the electrical connection means 41. The wireless base station device 50 is supplied with power from the power line 40 via the connecting means 41 and is always in an operable state. In the wireless communication structure 1, an antenna (transmission / reception antenna) is used as a radio wave transmitting unit and / or a radio wave receiving unit.

The radio base station device 50 receives the radio wave E received from a radio communication device (not shown) on the ground or in the sky at the radio wave receiving unit, converts the radio wave E into another signal such as an optical signal, and converts the signal. Can be sent to the communication line 30. Further, the wireless base station device 50 receives a signal such as an optical signal from the communication line 30 at the main body 51, converts it into a radio wave E, and transmits the converted radio wave E from the radio wave transmitting unit on the ground or in the sky. Can be sent to the device. Therefore, the radio base station device 50 has a function of relaying the exchange of signals between the wireless communication device on the ground or in the sky and the communication line 30 buried underground.

The lower space 20 is a space that extends along the extension direction of the communication line 30 and the power line 40, and is a space that communicates along the extension direction of the communication line 30 and the power line 40. The lid member 10 is a top plate of the lower space 20. The lid member 10 is a plate-shaped member. Of the lid member 10, at least a portion located directly above the antenna housed in the lower space 20, that is, directly above the radio base station device 50 is formed of resin. In the wireless communication structure 1, the entire lid member 10 is made of resin. The resin has a property of being excellent in the transmission of radio waves E as compared with a material such as metal.

In the wireless communication structure 1, since the lid member 10 located directly above the wireless base station device 50 housed inside the lower space 20 is made of resin, the wireless base station device 50 is placed in the space 20 below the ground. Even if it is stored, the degree of freedom in the transport direction of the radio wave E is improved, and excellent wireless communication performance can be exhibited. Further, if the lid member 10 having the resin portion is provided, the lower space 20 in which the wireless base station device 50 is housed can be formed, so that the degree of freedom in the installation location of the wireless base station device 50 is excellent, and radio interference is likely to occur. You can avoid installation in place. Further, if the lid member 10 having the resin portion is provided, the lower space 20 in which the radio base station device 50 is housed can be formed, so that a large number of radio base station devices 50 can be installed at high density over the entire communication target area. Therefore, even if the communicable range of the wireless base station device 50 is narrowed by high-frequency communication such as a 5G communication system, even if the terminal moves out of the communication area of the wireless base station device 50 up to that point, the terminal can be reliably moved. Since it is possible to enter the communication area of another radio base station device 50, wireless communication can be reliably continued.

Further, in the wireless communication structure 1, since the lid member 10 is made of resin, the weight is reduced, so that the workability at the time of installation, maintenance, etc. of the wireless base station device 50 is excellent. Further, in the wireless communication structure 1, since the communication line 30, the power line 40, the communication line 30, and the radio base station device 50 connected to the power line 40 are housed in the space 20 below the ground, a good landscape can be maintained.

The average thickness of the lid member 10 is not particularly limited, but the lower limit thereof is preferably 2.0 cm, more preferably 3.0 cm, and 4.0 cm from the viewpoint of obtaining mechanical strength to withstand the load of a person traveling on the ground. Is particularly preferable. On the other hand, the upper limit of the average thickness of the lid member 10 is preferably 20 cm, more preferably 17 cm, and particularly preferably 15 cm from the viewpoint of surely obtaining good transmission of the radio wave E. Both the surface 11 on the upper side in the gravity direction and the surface 12 on the lower side in the gravity direction of the lid member 10 are smooth flat surfaces.

In the wireless communication structure 1, in addition to the lid member 10, one side wall portion 23 and the side wall portion 23 of the lower space 20 extending along the extension direction of the bottom surface portion 22 of the lower space 20, the communication line 30 and the power line 40 The other side wall portion 24 of the facing lower space 20 is made of resin. In the wireless communication structure 1, the entire bottom surface portion 22 and the entire

side wall portions

23 and 24 of the lower space 20 are made of resin. Specifically, a wireless communication structure is formed by burying a resin container having a shape in the longitudinal direction along the extension direction of the communication line 30 and the power line 40 underground with the surface of the lid exposed from the ground. The lower space 20 of 1 is formed.

The shape of the cross section (which may be referred to as “front view” in the present specification) orthogonal to the extension direction of the communication line 30 and the power line 40 in the lower space 20 is not particularly limited, but for example, FIG. As shown in 2, a rectangular shape can be mentioned.

As an installation location of the wireless communication structure 1, for example, it may be installed so as to extend along the extension direction of the road surface of a motorway or a general road. More specifically, the wireless communication structure 1 may be installed along the side of the road surface. By installing the wireless communication structure 1 along the extension direction of the road surface, even if the terminal moves out of the communication area of the conventional wireless base station device 50 when a person moves by automobile or the like, it is reliable. You can enter the communication area of another radio base station device 50.

In the wireless communication structure 1, if the lid member 10 having the resin portion is provided, the lower space 20 in which the wireless base station device 50 is housed can be formed. Further, the lower space 20 is a continuous space extending along the extension direction of the communication line 30 and the power line 40. Therefore, as shown in FIG. 3, even if a new building 110 is installed in the communication area of the radio base station device 50 and radio interference occurs in the radio base station device 50, the building 110 in the lower space 20 The radio base station device 50 can be easily relocated to a place where there is no influence. Therefore, in the wireless communication structure 1, it is easy to select a relocation location in the space 20 below the wireless base station apparatus 50, and the wireless communication function of the wireless base station apparatus 50 is excellent in maintainability.

In the wireless communication structure 1, since the lower space 20 is formed by a resin container having a shape in the longitudinal direction along the extension direction of the communication line 30 and the power line 40, the lower space 20 can be easily formed. , The degree of freedom in the installation location of the wireless base station device 50 and the maintainability of the wireless communication function of the wireless base station device 50 are further improved.

The resin type of the lid member 10 is not particularly limited, and examples thereof include polyolefin resins such as polyethylene and polypropylene, polyester resins such as polyethylene terephthalate, and polystyrene resins. The resin type of the bottom surface portion 22, the

side wall portions

23, and 24 of the lower space 20 is not particularly limited, but for example, like the resin type of the lid member 10, a polyolefin resin such as polyethylene and polypropylene, and a polyester such as polyethylene terephthalate. Examples include resins and polystyrene resins. The above resin types may be used alone or in combination of two or more.

Next, the wireless communication structure according to the second embodiment of the present invention will be described. Since the wireless communication structure according to the second embodiment has the same main components as the wireless communication structure according to the first embodiment, the same components as the wireless communication structure according to the first embodiment are used. This will be described using the same reference numerals. Note that FIG. 4 is an explanatory view of a front view of the wireless communication structure according to the second embodiment of the present invention.

In the wireless communication structure 1 according to the first embodiment, the surface 11 on the upper side in the gravity direction of the lid member 10 is a smooth flat surface, but as shown in FIG. 4, the wireless according to the second embodiment. In the communication structure 2, a plurality of

convex portions

13, 13, 13 ... And a plurality of

concave portions

14, 14, 14 ... Are formed on the surface 11 on the upper side of the lid member 10 in the direction of gravity. That is, an uneven portion is formed on the surface 11 of the lid member 10 on the upper side in the direction of gravity. The convex portion 13 is a portion that protrudes upward in the direction of gravity. Further, a plurality of convex portions 13 are provided at predetermined intervals. In the wireless communication structure 2, the surface 12 on the lower side of the lid member 10 in the direction of gravity is a smooth flat surface.

In the wireless communication structure 2, an uneven portion is formed on the surface 11 of the lid member 10 on the upper side in the direction of gravity to prevent an obstacle from being placed on the lid member 10 installed on the ground, and wireless communication is performed. It is possible to prevent people from entering the area of structure 2. Further, the uneven portion provided on the surface 11 on the upper side of the lid member 10 in the direction of gravity can be provided with a function as a Braille block, if necessary.

Next, the wireless communication structure according to the third embodiment of the present invention will be described. Since the wireless communication structure according to the third embodiment has the same main components as the wireless communication structure according to the first and second embodiments, the wireless communication structure according to the first and second embodiments. The same components as the above will be described using the same reference numerals. Note that FIG. 5 is an explanatory view of a front view of the wireless communication structure according to the third embodiment of the present invention.

In the wireless communication structure 1 according to the first embodiment, the surface 11 on the upper side in the gravity direction of the lid member 10 is a smooth flat surface, but as shown in FIG. 5, the wireless according to the third embodiment. In the communication structure 3, one convex portion 15 is formed on the surface 11 on the upper side of the lid member 10 in the direction of gravity. The convex portion 15 is a portion that protrudes upward in the direction of gravity. Further, the convex portion 15 is formed from one end 16 to the other end 17 in the width direction of the lid member 10. The front view shape of the convex portion 15 is an arc shape. In the wireless communication structure 3, no recess is formed on the surface 11 on the upper side of the lid member 10 in the direction of gravity. In the wireless communication structure 3, the surface 12 on the lower side of the lid member 10 in the direction of gravity is a smooth flat surface.

In the wireless communication structure 3, the convex portion 15 is formed on the surface 11 on the upper side of the lid member 10 in the direction of gravity to prevent an obstacle from being placed on the lid member 10 installed on the ground, and wirelessly. It is possible to prevent people from entering the area of the communication structure 3. Further, the convex portion 15 provided on the surface 11 on the upper side of the lid member 10 in the direction of gravity can refract the radio wave E radiated from the radio base station device 50 and convey the radio wave E over a wider area. , Rainwater and the like can be prevented from accumulating in the lid member 10.

Next, the wireless communication structure according to the fourth embodiment of the present invention will be described. Since the wireless communication structure according to the fourth embodiment has the same main components as the wireless communication structure according to the first to third embodiments, the wireless communication structure according to the first to third embodiments is common. The same components as the above will be described using the same reference numerals. Note that FIG. 6 is an explanatory view of a front view of the wireless communication structure according to the fourth embodiment of the present invention.

In the wireless communication structure 1 according to the first embodiment, the member is not provided on the surface 12 on the lower side in the gravity direction of the lid member 10, but as shown in FIG. 6, the wireless according to the fourth embodiment In the communication structure 4, the dielectric lens 60 is provided on the surface 12 on the lower side of the lid member 10 in the direction of gravity. That is, the dielectric lens 60 is provided on the surface of the lid member 10 facing the radio base station device 50. The dielectric lens 60 is a member having a high dielectric constant. The dielectric lens 60 is located directly above the antenna, that is, directly above the radio base station device 50.

In the wireless communication structure 4, the dielectric lens 60 is provided on the surface 12 on the lower side in the gravity direction of the lid member 10, so that the radio wave E radiated from the wireless base station device 50 is refracted and reflected to make a wider area. Can convey the radio wave E to the lens.

Next, the wireless communication structure according to the fifth embodiment of the present invention will be described. Since the wireless communication structure according to the fifth embodiment has the same main components as the wireless communication structure according to the first to fourth embodiments, the wireless communication structure according to the first to fourth embodiments is common. The same components as the above will be described using the same reference numerals. Note that FIG. 7 is an explanatory view of a front view of the wireless communication structure according to the fifth embodiment of the present invention.

In the wireless communication structures 1 to 4 according to the first to fourth embodiments, the radio wave transmitting unit and / or the radio wave receiving unit is built in the main body 51 of the radio base station device 50, but as shown in FIG. In the wireless communication structure 5 according to the fifth embodiment, the radio wave transmitting unit and / or the radio wave receiving unit (for example, the antenna 52) is not built in the main body 51, but is arranged in the lid member 10. The antenna 52 is arranged on the surface 12 on the lower side of the lid member 10 in the direction of gravity. More specifically, the antenna 52 is in surface contact with the surface of the surface 12 on the lower side in the direction of gravity.

The antenna 52 is connected to the main body 51 via, for example, an optical or electrical connecting means 53. Examples of the antenna 52 arranged on the lid member 10 include a flat array antenna equipped with a plurality of antenna elements. The flat surface portion of the flat antenna 52 is arranged parallel to the surface 12 on the lower side in the gravity direction of the lid member 10. That is, in the wireless communication structure 5, the flat surface portion of the antenna 52 extends along the direction orthogonal to the direction of gravity. Therefore, the radio wave E from the antenna 52 is radiated in the direction directly above.

In the wireless communication structure 5, since the antenna 52 is arranged on the surface 12 on the lower side of the lid member 10 in the direction of gravity, the attenuation of the radio wave E in the lower space 20 is prevented, and further excellent wireless communication performance is exhibited. it can. Further, since the antenna 52 is not exposed on the ground, deterioration due to wind, rain, ultraviolet rays, or the like can be prevented.

Next, the wireless communication structure according to the sixth embodiment of the present invention will be described. Since the wireless communication structure according to the sixth embodiment has the same main components as the wireless communication structure according to the first to fifth embodiments, the wireless communication structure according to the first to fifth embodiments is common. The same components as the above will be described using the same reference numerals. Note that FIG. 8 is an explanatory view of a front view of the wireless communication structure according to the sixth embodiment of the present invention.

In the wireless communication structure 5 according to the fifth embodiment, the flat surface portion of the flat antenna 52 is arranged parallel to the surface 12 on the lower side in the gravity direction of the lid member 10, but is shown in FIG. As described above, in the wireless communication structure 6 according to the sixth embodiment, the flat surface portion of the flat antenna 52 is arranged with a predetermined inclination with respect to the surface 12 on the lower side in the gravity direction of the lid member 10. That is, in the wireless communication structure 6, the flat surface portion of the antenna 52 extends in the space between the direction of gravity and the direction orthogonal to the direction of gravity. One end of the antenna 52 is in contact with the surface 12 on the lower side in the gravity direction of the lid member 10, and the other end of the antenna 52 is separated from the surface 12 on the lower side in the gravity direction of the lid member 10. The member 10 is arranged with a predetermined inclination with respect to the surface 12 on the lower side in the gravity direction. Therefore, in the wireless communication structure 6, the radio wave E from the antenna 52 is radiated in a direction inclined by a predetermined angle with respect to the direction directly above. From the above, the wireless communication structure 6 is effective when there is an obstacle of radio waves in the direction directly above, or when the wireless communication device on the ground or in the sky is located in a direction inclined by a predetermined angle with respect to the direction directly above.

In the wireless communication structure 6, the antenna 52 is arranged on the lid member 10 because one end of the antenna 52 is in contact with the surface 12 on the lower side in the gravity direction of the lid member 10.

Even in the wireless communication structure 6, since the antenna 52 is arranged on the surface 12 on the lower side of the lid member 10 in the direction of gravity, the attenuation of the radio wave E in the lower space 20 is prevented, and further excellent wireless communication performance is exhibited. it can.

Next, the wireless communication structure according to the seventh embodiment of the present invention will be described. Since the wireless communication structure according to the seventh embodiment has the same main components as the wireless communication structure according to the first to sixth embodiments, the wireless communication structure according to the first to sixth embodiments is common. The same components as the above will be described using the same reference numerals. Note that FIG. 9 is an explanatory view of a front view of the wireless communication structure according to the seventh embodiment of the present invention.

In the wireless communication structure 5 according to the fifth embodiment, the antenna 52, which is a radio wave transmitting unit and / or a radio wave receiving unit, is arranged on the surface 12 on the lower side of the lid member 10 in the direction of gravity, which is shown in FIG. As described above, in the wireless communication structure 7 according to the seventh embodiment, the antenna 52 is embedded in the inside 18 of the lid member 10. The flat surface portion of the antenna 52 is arranged parallel to the surface 11 on the upper side in the gravity direction of the lid member 10 and the surface 12 on the lower side in the gravity direction of the lid member 10. That is, the flat surface portion of the antenna 52 is embedded in the lid member 10 in parallel with the flat surface of the lid member 10. In the wireless communication structure 7, the antenna 52 is embedded in the inner 18 of the lid member 10, so that the antenna 52 is arranged in the lid member 10.

In the wireless communication structure 7, since the antenna 52 is embedded in the inner 18 of the lid member 10, the attenuation of the radio wave E in the lower space 20 is prevented, and further excellent wireless communication performance can be exhibited. Further, since the antenna 52 is not exposed to the outside, deterioration or damage of the antenna 52 can be prevented.

Next, the wireless communication structure according to the eighth embodiment of the present invention will be described. Since the wireless communication structure according to the eighth embodiment has the same main components as the wireless communication structure according to the first to seventh embodiments, the wireless communication structure according to the first to seventh embodiments is common. The same components as the above will be described using the same reference numerals. Note that FIG. 10 is an explanatory view of a front view of the wireless communication structure according to the eighth embodiment of the present invention.

In the wireless communication structure 5 according to the fifth embodiment, the antenna 52, which is a radio wave transmitting unit and / or a radio wave receiving unit, is arranged on the surface 12 on the lower side of the lid member 10 in the direction of gravity, which is shown in FIG. As described above, in the radio communication structure 8 according to the eighth embodiment, the antenna 52 is arranged on the surface 11 on the upper side of the lid member 10 in the direction of gravity. More specifically, the antenna 52 is in surface contact with the surface of the surface 11 on the upper side in the direction of gravity. The flat surface portion of the flat antenna 52 is arranged parallel to the surface 11 on the upper side of the lid member 10 in the direction of gravity. That is, in the wireless communication structure 8, the flat surface portion of the antenna 52 extends along the direction orthogonal to the direction of gravity. Therefore, the radio wave E from the antenna 52 is radiated in the direction directly above.

In the wireless communication structure 8, since the antenna 52 is arranged on the surface 11 on the upper side of the lid member 10 in the direction of gravity, not only the attenuation of the radio wave E in the lower space 20 is prevented, but also the radio wave in the lid member 10 is prevented. Attenuation of E is also prevented, and even better wireless communication performance can be exhibited.

Next, the wireless communication structure according to the ninth embodiment of the present invention will be described. Since the wireless communication structure according to the ninth embodiment has the same main components as the wireless communication structure according to the first to eighth embodiments, the wireless communication structure according to the first to eighth embodiments is common. The same components as the above will be described using the same reference numerals. Note that FIG. 11 is an explanatory view of a front view of the wireless communication structure according to the ninth embodiment of the present invention.

In the wireless communication structure 7 according to the seventh embodiment, the flat surface portion of the antenna 52 is embedded in the lid member 10 in parallel with the flat surface of the lid member 10, but as shown in FIG. 11, the ninth embodiment. In the wireless communication structure 9 according to the embodiment, the lid member 10 is embedded inside the lid member 10 at a predetermined angle with respect to the plane surface of the lid member 10. The flat surface portion of the antenna 52 is arranged at a predetermined angle with respect to the surface 11 on the upper side in the gravity direction of the lid member 10 and the surface 12 on the lower side in the gravity direction of the lid member 10. That is, in the wireless communication structure 9, the flat surface portion of the antenna 52 extends along a predetermined direction between the direction of gravity and the direction orthogonal to the direction of gravity. Therefore, in the wireless communication structure 9, the radio wave E from the antenna 52 is radiated in a direction inclined by a predetermined angle with respect to the direction directly above. From the above, the wireless communication structure 9 is effective when there is an obstacle of radio waves in the direction directly above, or when the wireless communication device on the ground or in the sky is located in a direction inclined by a predetermined angle with respect to the direction directly above.

In the wireless communication structure 9, since the antenna 52 is embedded in the inner 18 of the lid member 10, the attenuation of the radio wave E in the lower space 20 is prevented, and further excellent wireless communication performance can be exhibited. Further, since the antenna 52 is not exposed to the outside, deterioration or damage of the antenna 52 can be prevented.

Next, the wireless communication structure according to the tenth embodiment of the present invention will be described. In the tenth embodiment, the same components as the wireless communication structure according to the first to ninth embodiments will be described with reference to the same reference numerals. Note that FIG. 12 is a schematic explanatory view of the wireless communication structure according to the tenth embodiment of the present invention. Further, FIG. 13 is an explanatory view of a front view of a wireless communication structure in which a wireless communication unit is arranged outside the lower space according to the tenth embodiment of the present invention. Further, FIG. 14 is an explanatory view of a front view of the wireless communication structure in which the wireless communication unit is arranged in the lower space according to the tenth embodiment of the present invention.

In the wireless communication structure 70 according to the tenth embodiment, the antenna 52 (radio wave transmitting unit and / or radio wave receiving unit) is not built in the main body 51, but is arranged in the lid member 10. The antenna 52 is arranged on the surface 12 on the lower side of the lid member 10 in the direction of gravity.

Further, in the main body 51 of the wireless base station device 50, the wireless communication unit 51a to which the antenna 52 is directly connected via the connection means 53 and the wireless communication unit 51a via the optical or electrical connection means 54. It is composed of a signal processing unit 51b that is directly connected to the signal processing unit 51b.

The wireless communication unit 51a transmits and receives radio signals via the antenna 52, and is, for example, an RRH (Remote Radio Head) that constitutes the wireless base station device 50. As shown in FIGS. 12 to 14, the wireless communication unit 51a is a ground-mounted transformer 112 installed on the ground 100 near the antenna 52, inside a basin 111 such as a branch basin communicating with the lower space 20. It is installed inside the housing, inside the building 113 installed on the ground 100 near the antenna 52, or in the space 20 below.

The signal processing unit 51b modulates the data received from the so-called core network and transmits it to the wireless communication unit 51a, or demotes the signal received from the wireless communication unit 51a and transmits it to the core network, for example. , BBU (Base Band Unit) constituting the radio base station device 50. Although the signal processing unit 51b of the tenth embodiment is installed inside the building 113 in FIG. 12, it may be installed inside the box 111 or the housing of the transformer 112.

As described above, according to the radio communication structure 70 of the first to tenth embodiments, the lid member 10 installed in the opening 101 provided in the ground 100 and the lower space located below the lid member 10 in the gravity direction. A radio base station apparatus including a communication line 30 and a power line 40 housed inside the 20 and having at least an antenna (radio wave transmitting unit and / or radio wave receiving unit) 52 in the lid member 10 or the lower space 20. A part of the components constituting the 50 are arranged, and the lid member 10 is at least a portion in contact with the antenna (radio wave transmitting portion and / or radio wave receiving portion) 52, or an antenna (radio wave) housed in the lower space 20. The portion located above the transmitting unit and / or the radio wave receiving unit) 52 is made of resin.

As a result, at least the portion of the lid member 10 where the antenna (radio wave transmitting portion and / or radio wave receiving portion) 52 is arranged is formed of resin, and the resin is excellent in radio wave transmission. Even if the station device 50 is housed in the space 20 below the ground, the degree of freedom in the direction of carrying radio waves is improved, and excellent wireless communication performance can be exhibited. Further, if the lid member 10 having the resin portion is provided, the lower space 20 in which the wireless base station device 50 is housed can be formed, so that the degree of freedom in the installation location of the wireless base station device 50 is excellent, and the entire communication target area is covered. A large number of radio base station devices 50 can be installed at high density.

Further, the wireless base station device 50 has a wireless communication unit 51a to which the antenna (radio wave transmitting unit and / or radio wave receiving unit) 52 is connected, and a signal processing unit 51b to which the wireless communication unit 51a is connected. It is preferable to have.

As a result, the wireless communication unit 51a and the signal processing unit 51b constituting the wireless base station device 50 can be arranged in different spaces, so that the degree of freedom of the installation location is excellent and the wireless base station device 50 can be located at a required location. Can be installed.

Further, it is preferable that the wireless communication unit 51a is arranged inside the box 111 communicating with the lower space 20.

Further, it is preferable that the wireless communication unit 51a is arranged inside the housing of the ground-mounted transformer 112 installed on the ground near the antenna (radio wave transmitting unit and / or radio wave receiving unit) 52.

Further, it is preferable that the wireless communication unit 51a is arranged inside the building 113 installed on the ground near the antenna (radio wave transmitting unit and / or radio wave receiving unit) 52.

Further, it is preferable that the wireless communication unit 51a is arranged in the lower space 20.

As a result, when all the components of the wireless base station device 50 cannot be installed in the lower space 20, the antenna (radio wave transmitting unit and / or radio wave receiving unit) 52 and the wireless communication unit 51a are arranged in the lower space 20. By installing the signal processing unit 51b in the vicinity of the lower space 20, the degree of freedom in the installation location of the radio wave transmission / reception point for communication is excellent, and a large number of radio base station devices 50 are densely arranged over the entire communication target area. Can be installed.

Next, the wireless communication structure according to the eleventh embodiment of the present invention will be described. In the eleventh embodiment, the same components as the wireless communication structure according to the first to tenth embodiments will be described with reference to the same reference numerals. Note that FIG. 15 is an explanatory view of a front view of the wireless communication structure according to the eleventh embodiment of the present invention. Further, FIG. 16 is an explanatory view of a wireless communication structure according to an example of the eleventh embodiment of the present invention in a plan view.

In the wireless communication structure 80 according to the eleventh embodiment, the antenna 52 (radio wave receiving unit and / or radio wave receiving unit) is not built in the main body 51, but is arranged in the lid member 10. The antenna 52 is arranged on the surface 12 on the lower side of the lid member 10 in the direction of gravity.

Further, the lower space 20 is detachably provided with respect to the opening 101, and is formed by a plurality of lid members 10 arranged in the extending direction of the communication line 30 and the power line 40, respectively.

The plurality of lid members 10 have a first lid member 10a on which the antenna 52 is arranged and a second lid member 10b on which the antenna 52 is not arranged. The first lid member 10a and the second lid member 10b can change the arrangement of the communication line 30 and the power line 40 in the opening 101 in the extending direction.

Further, the connecting means 53 for connecting the main body 51 and the antenna 52 extends the communication line 30 and the power line 40 in the opening 101 of the first lid member 10a with respect to the main body 51 fixed in the lower space 20. The length is set so that the arrangement can be changed in the direction. The connecting means 53 is preferably set to a length 1.5 times or more the size in the longitudinal direction (the direction in which the communication line 30 and the power line 40 extend) of the first lid member 10a, for example.

In the wireless communication structure 80 configured as described above, the antenna 52 is arranged when a new structure 110 is installed in the communication area of the wireless base station apparatus 50 and radio interference occurs in the wireless base station apparatus 50. As shown in FIG. 16, by exchanging the arrangement of the first lid member 10a with the second lid member 10b arranged at a position where the influence of the building 110 is small, it is possible to avoid the occurrence of radio interference. ..

As described above, according to the wireless communication structure 80 of the eleventh embodiment, at least the antenna (radio wave transmitting unit and / or radio wave receiving unit) of the lid member 10 is similar to the first to tenth embodiments. Since the portion where the 52 is arranged is formed of resin and the resin has excellent radio wave transmission, even if the radio base station device 50 is housed in the space 20 below the ground, there is a degree of freedom in the direction of carrying radio waves. It can be improved and excellent wireless communication performance can be demonstrated. Further, if the lid member 10 having the resin portion is provided, the lower space 20 in which the wireless base station device 50 is housed can be formed, so that the degree of freedom in the installation location of the wireless base station device 50 is excellent, and the entire communication target area is covered. A large number of radio base station devices 50 can be installed at high density.

Further, the lower space 20 is detachably provided with respect to the opening 101, and is formed by a plurality of lid members 10 arranged in the extending directions of the communication line 30 and the power line 40. The first lid member 10a on which the antenna (radio wave transmitting unit and / or radio wave receiving unit) 52 is arranged, and the second lid member 10b on which the antenna (radio wave transmitting unit and / or radio wave receiving unit) 52 is not arranged. It is preferable that the first lid member 10a and the second lid member 10b can be arranged with respect to each other in the extension direction of the communication line 30 and the power line 40 in the opening 101.

As a result, the antenna 52 can be moved in the direction in which the communication line 30 and the power line 40 in the opening 101 extend. Therefore, when the building 110 causes radio interference, moving the antenna 52 causes radio interference. This can be avoided, and the maintainability of the wireless communication function of the wireless base station apparatus 50 is excellent.

In the eleventh embodiment, the first lid member 10a is connected by connecting the main body 51 fixed to the lower space 20 and the antenna 52 arranged on the first lid member 10a via the connecting means 53. It is shown that it can be moved, but it is not limited to this. If the first lid member 10a on which the antenna 52 is arranged is movable, for example, as shown in FIGS. 17 and 18, the antenna 52 and the main body 51 are arranged on the first lid member 10a, and the main body 51 and the antenna are arranged. The 52 and the first lid member 10a may be moved. In the wireless communication structure 90 shown in FIGS. 17 and 18, the connecting means 31 for connecting the communication line 30 and the main body 51 and the connecting means 41 for connecting the power line 40 and the main body 51 are connected to the first lid member 10a. Set the placement of the to a changeable length. The connecting means 31 and 41 are preferably set to a length 1.5 times or more the size in the longitudinal direction (the direction in which the communication line 30 and the power line 40 extend) of the first lid member 10a, for example.

Next, another embodiment of the wireless communication structure of the present invention will be described. In the wireless communication structure according to each of the above embodiments, the entire lid member 10 is made of resin, but instead, only the portion of the lid member in contact with the radio wave transmitting portion / radio wave receiving portion is used. Or, only the portion located directly above and in the vicinity of the radio wave transmitting unit / radio wave receiving unit housed in the lower space may be formed of resin. Here, the portion in contact with the radio wave transmitting unit / radio wave receiving unit is the gravity in which the radio wave transmitting unit / radio wave receiving unit in the lid member is arranged when the radio wave transmitting unit / radio wave receiving unit is arranged on the lid member. It includes not only the parts that are in contact in the direction (horizontal direction) along both sides of the direction, but also the parts that are in contact in the thickness direction where radio waves need to be transmitted. That is, as long as the portion of the lid member through which the radio waves radiated from the radio base station device is transmitted is formed of resin, the other portion may not be formed of resin. Examples of the member other than the resin used for the other part of the lid member include concrete and the like. Further, in the wireless communication structure according to each of the above embodiments, the bottom surface portion and the side wall portion of the lower space are formed of resin, but instead of resin, other members such as concrete may be formed. A part of the bottom surface portion and the side wall portion of the lower space may be formed of resin. That is, the bottom surface portion of the lower space may be entirely formed of another member such as concrete, or a part of the region may be formed of another member such as concrete. Further, the side wall portion of the lower space may be entirely formed of another member such as concrete, or a part of the region may be formed of another member such as concrete. When concrete is used as a member other than the resin, the other parts, the bottom surface portion and the side wall portion of the lid member shall be precast concrete, and the lid member, at the installation location of the wireless communication structure of the present invention, may be used. The bottom surface portion and the side wall portion may be assembled to form a wireless communication structure.

Further, in the wireless communication structure according to the fifth to eleventh embodiments, the radio wave transmitting unit and / or the radio wave receiving unit (flat antenna), which is not built in the main body of the wireless base station apparatus, is a lid member. However, instead of this, it may be housed inside the lower space as in the main body of the radio base station apparatus. Further, in the wireless communication structure according to the fifth to eleventh embodiments, the radio wave transmitting unit and / or the radio wave receiving unit (flat antenna) is attached to the lid member, but instead of this, The lid member itself may be an antenna structure.

Hereinafter, the twelfth embodiment of the present invention will be described with reference to the drawings.
FIG. 19 shows an outline of the accommodation unit 200 according to the present invention. The accommodating unit 200 is composed of a resin container for accommodating cables. The cable is, for example, a power transmission cable for transmitting electric power to each household (power line 201 described later), a communication transmission cable for transmitting information (communication line 202 described later), and the like. The accommodating unit 200 includes a plurality of square tubular first resin containers 210 arranged at predetermined intervals in the gutters 204 of the road 203, and a plurality of square cylinders arranged between the first resin containers 210. A second resin container 220 in the shape of a shape is provided. Although details will be described later, the first resin container 210 accommodates a radio base station to which a cable is connected. In the accommodation unit 200, the first resin container 210 is arranged at the place where the radio base station is arranged, and in the direction in which the cable is extended, the front or the rear of the first resin container 210 (one side in the direction in which the cable is extended). The second resin container 220 is arranged on the other side).

Further, the accommodation unit 200 may be configured to include a third resin container (not shown). The third resin container is a container in which the bottom and the lid are formed substantially horizontally (flat) and does not have a drainage portion and a drainage receiving portion. In such a configuration, in the accommodating unit 200, one end of the second resin container 220 is arranged in front of or behind the first resin container 210 in the direction in which the cable is extended, and the second resin container 220 One end of the third resin container is arranged at the other end. Further, when the space between the first resin container 210 and the other first resin container 210 is wide, the storage unit 200 is arranged in front of or behind the first resin container 210. A plurality of third resin containers are arranged adjacent to each other between the second resin container 220 to be formed and the second resin container 220 arranged in front of or behind the other first resin container 210. To.

The plurality of

resin containers

210 and 220 are continuously arranged so that their internal spaces communicate with each other. As a result, an elongated tunnel-shaped underground space 205 is formed inside the plurality of

resin containers

210 and 220. Cables (communication line 202 and power line 201 shown in FIG. 19) are laid in the underground space 205.

The radio base station 206 is housed in each of the first resin containers 210. That is, a plurality of radio base stations 206 are distributed and arranged along the gutter 204 at regular intervals. The wireless base station 206 is an example of a wireless communication device according to the present invention, and is a device that transmits and receives communication radio waves to and from a mobile communication terminal such as a mobile phone. The radio base station 206 is, for example, a base station for 5G (fifth generation mobile communication system), but is not limited to a base station for 5G. The first resin container 210 accommodating the radio base station 206 is arranged at a position where, for example, the radio transmission / reception ranges of the radio base station 206 complement each other.

As shown in FIG. 20, the radio base station 206 has a main body 206a and an antenna 206b. The communication line 202 is connected to the main body 206a of the radio base station 206 housed in the first resin container 210 via the communication branch line 202a, and the power line 201 is connected via the power branch line 201a. The communication line 202 is connected to the base station main body (exchange) 207. The radio base station 206 is connected to the base station main body 207 via the communication branch line 202a and the communication line 202. The mobile communication terminal is wirelessly connected to the base station main body 207 via the wireless base station 206 so as to be able to communicate with the base station main body 207. Drive power is supplied to the radio base station 206 from the power line 201 via the power branch line 201a.

The wireless communication structure of the present invention has excellent flexibility in the installation location of the wireless base station device, allows a large number of wireless base station devices to be installed at high density over the entire communication target area, and is excellent in maintainability of the wireless base station device. Therefore, it can be used in a wide range of wireless communication fields, and has high utility value in, for example, the field of 5G communication systems.

1, 2, 3, 4, 5, 6, 7, 8, 9 Wireless communication structure 10 Lid member 10a 1st lid member 10b 2nd lid member 20 Lower space 30 Communication line 40 Power line 50 Wireless base station device 51 Main body 51a Wireless communication unit 51b Signal processing unit 52

Antenna

70, 80, 90 Wireless communication structure 100 Ground 101 Opening 111 桡 112 Transformer 113 Building

Claims

The lid member installed in the opening provided on the ground and
A communication line and a power line housed inside a lower space located below the lid member in the direction of gravity are provided.
At least some of the components constituting the radio base station device having the radio wave transmitting unit and / or the radio wave receiving unit are arranged in the lid member or the lower space.
The lid member includes at least a portion in contact with the radio wave transmitting portion and / or the radio wave receiving portion, or a portion located above the radio wave transmitting portion and / or the radio wave receiving portion housed in the lower space. , Radio communication structure made of resin.
The first aspect of claim 1, wherein the radio base station device includes a radio communication unit to which the radio wave transmitting unit and / or the radio wave receiving unit is connected, and a signal processing unit to which the radio communication unit is connected. Wireless communication structure.
The wireless communication structure according to claim 2, wherein the wireless communication unit is arranged inside a box communicating with the lower space.
The wireless communication structure according to claim 2, wherein the wireless communication unit is arranged inside a housing of a ground-mounted transformer installed on the ground near the radio wave transmitting unit and / or the radio wave receiving unit. ..
The wireless communication structure according to claim 2, wherein the wireless communication unit is arranged inside a building installed on the ground near the radio wave transmitting unit and / or the radio wave receiving unit.
The wireless communication structure according to claim 2, wherein the wireless communication unit is arranged in the lower space.
Each of the lower spaces is detachably provided with respect to the opening, and is formed by the plurality of lid members arranged in the extending direction of the communication line and the power line.
The plurality of lid members include a first lid member in which the radio wave transmitting unit and / or the radio wave receiving unit is arranged, and a second lid member in which the radio wave transmitting unit and / or the radio wave receiving unit is not arranged. Have,
The wireless communication according to any one of claims 1 to 6, wherein the first lid member and the second lid member can change the arrangement of the communication line and the power line in the opening in the extending direction. Construction.
The wireless communication structure according to any one of claims 1 to 7, wherein the entire lid member is made of resin.
The wireless communication structure according to any one of claims 1 to 8, wherein the bottom surface portion and the side wall portion of the lower space are made of resin.
The wireless communication structure according to any one of claims 1 to 9, wherein the average thickness of the lid member is 2.0 cm or more and 20 cm or less.
The wireless communication structure according to any one of claims 1 to 10, wherein an uneven portion or a convex portion is provided on the surface of the lid member on the upper side in the direction of gravity.
The wireless communication structure according to any one of claims 1 to 11, wherein a dielectric lens is further provided on the surface of the lid member on the lower side in the direction of gravity.
The wireless communication structure according to any one of claims 1 to 12, wherein the lid member and the lower space extend along the extension direction of the road surface.
The wireless communication structure according to any one of claims 1 to 13, wherein the resin is at least one selected from the group consisting of a polyolefin resin and a polyester resin.