JP2022104470A - Base station for mobile terminal and installation method thereof - Google Patents

Abstract

To efficiently transmit and receive radio waves, and safely and quickly perform maintenance and inspection.SOLUTION: A base station 100 for a mobile terminal which includes a support member 30 in which a box 10 in which an antenna, a control unit, and a transmission/reception unit are housed together is attached to a support column 20, and the box 10 can be installed in a state of being tilted downward, and can be attached to the support column 20 so as to be rotatable and vertically movable, and a fixing member 40 that fixes the support member 30 to the support column 20 is installed such that the antenna in the box 10 faces downward to the outside of a building B at the edge or corner of the roof of the building B, and the box 10 is installed so as to be located above the support column 20, and during maintenance and inspection, the box 10 is rotated inward of the building B via the support member 30.SELECTED DRAWING: Figure 1

Description

The present invention relates to a mobile terminal base station in which an antenna, a control unit, and a transmission / reception unit are integrated in a mobile terminal base station, and a method for installing the mobile terminal base station.

As a base station for a mobile terminal, for example, an integrated base station for a mobile terminal in which an antenna, a control unit, and a transmission / reception unit are integrated, for example, an RRU (remote radio unit) (see, for example, Patent Document 1). ) And a separate type base station for mobile terminals in which the RRU is separated from the antenna (see, for example, Patent Document 2).

As an integrated base station for a mobile terminal, for example, a base station installed on a sidewalk or a facility plaza, as in Patent Document 1, is known.
If it is installed in such a case, maintenance and inspection are easy, but considering the arrival of radio waves, the front of the device needs to be a free space. In addition, there is a restriction that an no-entry area must be provided around the area to avoid contact with cars and people.

Therefore, it is known that an integrated base station for mobile terminals is installed on the roof of the building, but it is necessary to tilt the antenna downward on the outside of the building in order to efficiently transmit and receive radio waves. It is necessary to install an integrated mobile terminal base station at the edge or corner of the building as much as possible.
However, such installation is dangerous during maintenance and inspection, and it is difficult to replace the device. Especially when there is only one worker, the work becomes quite difficult.

Therefore, in a separate base station for mobile terminals, only the antenna is installed on the roof of the building, and other devices such as the control unit and transmission / reception unit are separated from the antenna so that workers can work safely without danger. It is installed in a place where it can be done.
However, in this case, since there are two places to install the land, it is necessary to provide a feeding line between the antenna and the device as the leased land area increases. Further, although the frequency of failure on the antenna side is less than that on the device side, if the antenna side fails, the above-mentioned risk is involved, and it is extremely difficult to recover immediately.

Utility Model Registration No. 318,291 Japanese Unexamined Patent Publication No. 2009-94660

Therefore, an object of the present invention is to provide a base station for a mobile terminal capable of efficiently transmitting and receiving radio waves and performing maintenance and inspection safely and promptly, and an installation method thereof.

In order to achieve the above object, the base station for a mobile terminal of the present invention has a box (10) in which an antenna, a control unit, and a transmission / reception unit (RRU (remote radio unit)) are housed together as a support (20). It is a base station (100) for a mobile terminal attached to the
A support member (30) that can be installed in a state where the box (10) is tilted downward and is rotatably and vertically movable with respect to the support column (20).
It is characterized by including a fixing member (40) for fixing the support member (30) to the support column (20).

Further, in the present invention, the wire (51) extending from the constant load spring side provided on the upper portion of the support column (20) is connected to the support member (30), and the support member (30) is lowered with a constant force. It is characterized in that an assist device (50) that can be raised and lowered can be attached.

Further, in the method of installing a base station for a mobile terminal of the present invention, a box (10) in which an antenna, a control unit, and a transmission / reception unit are housed together is attached to a support (20).
A support member (30) that can be installed in a state where the box (10) is tilted downward and is rotatably and vertically movable with respect to the support column (20).
A mobile terminal base station (100) provided with a fixing member (40) for fixing the support member (30) to the support column (20).
In the mobile terminal base station (100), the antenna in the box (10) faces downward outside the building (B) at the edge or corner of the roof of the building (B), and the box (10) is the support column. Installed so as to be located above (20)
At the time of maintenance and inspection, the box (10) is rotated inward of the building (B) via the support member (30).

Further, in the method of installing a base station for a mobile terminal of the present invention, a box (10) in which an antenna, a control unit, and a transmission / reception unit are housed together is attached to a support (20).
A support member (30) that can be installed in a state where the box (10) is tilted downward and is rotatably and vertically movable with respect to the support column (20).
A mobile terminal base station (100) provided with a fixing member (40) for fixing the support member (30) to the support column (20).
In the mobile terminal base station (100), the antenna in the box (10) faces downward outside the building (B) at the edge or corner of the roof of the building (B), and the box (10) is the support column. Installed so as to be located above (20)
At the time of maintenance and inspection or parts replacement, the box (10) is rotated inward of the building (B) via the support member (30), and then the box (10) is moved downward. It is characterized by having done it.

Further, in the method of installing a base station for a mobile terminal of the present invention, a box (10) in which an antenna, a control unit, and a transmission / reception unit are housed together is attached to a support (20).
A support member (30) that can be installed in a state where the box (10) is tilted downward and is rotatably and vertically movable with respect to the support column (20).
A mobile terminal base station (100) provided with a fixing member (40) for fixing the support member (30) to the support column (20).
In the mobile terminal base station (100), the antenna in the box (10) faces downward outside the building (B) at the edge or corner of the roof of the building (B), and the box (10) is the support column. Installed so as to be located above (20)
At the time of maintenance and inspection or parts replacement, after moving the box (10) downward, the box (10) is rotated inward of the building (B) via the support member (30). It is characterized by having done it.

Further, the present invention is characterized in that the box (10) is rotated inward of the building (B) in a range of 90 degrees to 180 degrees.

The symbols in parentheses indicate the corresponding elements or corresponding items described in the drawings and the embodiment for carrying out the invention described later.

According to the present invention, with respect to a base station for a mobile terminal in which a box in which an antenna, a control unit, and a transmission / reception unit are housed together is mounted on a support column, a support member capable of installing the box in a downwardly inclined state is provided. Since it can be rotated and moved up and down with respect to the support and can be fixed to the support, the box can be moved to any height with respect to the support, and the box can be moved to any height. Can be rotated around.
Therefore, the base station for mobile terminals can be installed at a high position at the edge or corner of the roof of a building, and the antenna can be turned downward to efficiently transmit and receive radio waves.

At the time of maintenance and inspection, the box can be rotated toward the worker at the installed height, and at the time of parts replacement, the box can be lowered from the installation position and then rotated toward the worker. Or, since the box can be rotated toward the worker and then lowered, the worker does not have to move to a dangerous place, and it is safe and maintenance and parts replacement can be performed quickly. Can be done.

Further, according to the present invention, there is an assist device in which a wire extending from the constant load spring side provided on the upper part of the column is connected to the support member so that the support member can be lowered or raised with a constant force. Workability can be further improved by attaching it.

Further, the present invention is particularly useful because it is expected that the number of mobile terminal base stations installed on the roof of a building will increase in the future due to the spread of 5G (5th generation mobile communication system).
Such a base station for a mobile terminal and a method of installing the base station are not described in the above-mentioned Patent Documents 1 and 2.

It is an external perspective view which shows the state which the base station for a mobile terminal which concerns on embodiment of this invention is installed. It is an enlarged side view of the base station for a mobile terminal shown in FIG. 1. FIG. 2 is an enlarged cross-sectional view taken along the line AA shown in FIG. It is an enlarged perspective view which shows the support member shown in FIG. It is an enlarged perspective view which shows the relationship between the assist device shown in FIG. 2 and a slide pipe. It is a perspective view which shows the state which the support member is rotated at a high position together with a box in the base station for a mobile terminal which concerns on embodiment of this invention. It is a perspective view which shows the state which the support member is rotated at a low position together with a box in the base station for a mobile terminal which concerns on embodiment of this invention.

A base station for a mobile terminal and an installation method thereof according to an embodiment of the present invention will be described with reference to the drawings.

In the mobile terminal base station 100 according to the embodiment of the present invention, a box 10 in which an antenna (not shown), a control unit, and a transmission / reception unit (RRU (remote radio unit)) (not shown) are housed together is a support column 20. As shown in FIG. 1, the box 10 is installed on the gantry 200 in a state of being inclined downward at the corner (which may be the end) of the roof of the building B. The antenna is housed so that its antenna surface is parallel to the front surface of the box 10 (the surface opposite to the rear surface on the support column 20 side and facing the outside of the building B) inside the box 10. When the box 10 is made vertical as described above, only the internal antenna surface may be stored in a state of being tilted downward in the front direction.

As shown in FIG. 2, the mobile terminal base station 100 includes a support member 30 that supports the box 10 and a fixing member 40 that fixes the support member 30 to the support column 20. Further, at the time of work, an assist device 50 capable of lowering or raising the support member 30 with a constant force can be attached to the support column 20.

As shown in FIG. 3, the support column 20 has a square columnar shape, and the square columnar cavity is inserted into the cavity of the slide pipe 41 formed in the center, so that the slide pipe 41 is inserted into the cavity of the slide pipe 41 with respect to the support column 20. It is mounted so that it can be moved in the vertical direction.
As a result, the slide pipe 41 is regulated so as not to rotate in the horizontal direction with respect to the support column 10.
A stopper 45 is provided at the lower part of the support column 20 so that the slide pipe 41 does not go down below it as the lowest point of the slide pipe 41.

As shown in FIG. 4, the support member 30 includes a box mounting portion 31 on which the box 10 is directly mounted and erected, an upper horizontal plate 32 extending horizontally from the central portion and the lower portion of the box mounting portion 31, and a lower horizontal plate. It has a plate 33 and a connecting bar 34 that connects the end portion of the upper horizontal plate 32 and the end portion of the lower horizontal plate 33. Further, reinforcing bars 36 are diagonally provided at the upper portion of the box mounting portion 31 and the end portions of the upper horizontal plate 32.
Holes 32H and 33H are formed in the center of the upper horizontal plate 32 and the center of the lower horizontal plate 33, respectively, and the slide pipe 41 is inserted therethrough. The length of the slide pipe 41 is longer than the distance between the upper and lower holes 32H and the holes 33H.

The slide pipe 41 is columnar and has a hollow portion having a square cross section so that the column 20 inserted as described above does not rotate.
Flange 41A and 41B having the entire circumference protruding outward are provided on the upper surface and the lower surface of the slide pipe 41, respectively. A protrusion 41C is provided on the upper surface side of the flange 41A to fix the tip of the wire 51 extending from the assist device 50 when the assist device 50 is used.

Further, protrusions 41D and 41E having holes are provided on the upper surface of the flange 41A and the lower surface of the flange 41B so that the slide pipe 41 which can move up and down is fixed to the support column 20 by passing bolts 46 through the holes. It has become. Screw holes (not shown) into which the tip of the bolt 46 is inserted and screwed into the support column 20 are formed at high and low positions of the support column 20, and the slide pipe 41 is placed at a high position with respect to the support column 20 (FIG. 2). It can be fixed in a low position.
For example, the length of the support column 20 is 2000 mm, and the position X of the screw hole of the support column 20 facing the bolt 46 penetrating the protrusion 41D and the screw hole of the support column 20 facing the bolt 46 penetrating the protrusion 41E. When the distance from the position Y is 600 mm, when the slide pipe 41 is set to a high position (FIG. 2), the position X of the screw hole is 300 mm from the upper end of the support column 20, and the position Y of the screw hole is from the upper end of the support column 20. When the slide pipe 41 is set to a low position of 900 mm (300 mm + 600 mm), the screw hole position X is 800 mm from the upper end of the support column 20, and the screw hole position Y is 1400 mm (800 mm + 600 mm) from the upper end of the support column 20.
The numerical values are not particularly limited, and screw holes may be provided so that the slide pipe 41 can be fixed at least at two positions, a high position and a low position, with respect to the support column 20.

Further, the upper fixing bracket 42 is attached to the lower side of the flange 41A via the bolt 44, and the lower fixing bracket 43 is attached to the upper side of the flange 41B via the bolt 44.
The upper horizontal plate 32 of the support member 30 is placed on the upper side of the upper fixing bracket 42, and the lower horizontal plate 33 is placed on the upper side of the lower fixing bracket 43.

As a result, the support member 30 to which the box 10 in which the antenna is housed as the control unit and the transmission / reception unit is rotatable 360 degrees around the support column 20 together with the box 10. In addition, since the slide pipe 41 is vertically movable, the support member 30 is also vertically movable together with the box 10.

The assist device 50 is provided with a chain 61 having a clip 62 attached to the tip thereof, and when the assist device 50 is attached to the support column 20, the clip 62 is locked to a ring 35 provided on the upper part of the support column 20. By doing so, it is intended to prevent falling.

A base station 100 for a mobile terminal configured in this way usually has a box 10 in which an antenna is housed from a high position facing outward of the building B in a corner of the roof of the building B, as shown in FIG. It is installed facing down, which enables efficient transmission and reception of radio waves.
Then, at the time of maintenance and inspection, as shown in FIGS. 6 (a) to 6 (b), a worker who climbs the roof of the building B horizontally holds the support member 30 at a high position with respect to the support column 20 together with the box 10. Rotate the building B inward in the direction and carry out maintenance and inspection with the box 10 facing toward you.
Further, at the time of parts replacement or the like, the assist device 50 may be attached to the support column 20 so that the box 10 can be moved downward from the state of FIG. 6B via the support member 30.
Further, after moving the box 10 downward as shown in FIGS. 6 (a) to 7 (a), the box 10 is moved to the building B via the support member 30 as shown in FIG. 7 (b). It can also be rotated inward, that is, toward the worker side.
Here, the replacement of parts means the replacement of individual parts, but also includes the case of replacing each box 10 in which the antenna, the control unit, and the transmission / reception unit (RRU (remote radio unit)) are housed.

As shown in FIGS. 1 and 6, when the mobile terminal base station 100 is installed in the corner of the roof of the building B and the surface of the box 10 is parallel to the surface of the building B, or when the mobile terminal base station 100 is installed. If it is installed on the rooftop edge of building B and the surface of the box 10 is parallel to the surface of the building B, the work can be done by rotating the box 10 inward of the building B in the range of 90 to 180 degrees. It can be turned toward the members.

According to this, the box 10 can be rotated toward the worker and its height can be freely changed, so that the worker does not have to move to a dangerous place and is safe, and maintenance and inspection and parts replacement can be performed. Even one person can do it quickly.

Although the box 10 was attached to the support member 30 by tilting it downward, if the antenna surface is tilted downward inside the box 10, as shown in FIG. 6A, The box 10 does not have to be tilted.
Further, the support member 30 may have any structure and shape as long as the box 10 is attached and supported and can be rotatably and vertically movable with respect to the support column 2.
Further, as shown in FIG. 2, the fixing member 40 for fixing the support member 30 to the support column 20 is composed of a slide pipe 41, an upper fixing bracket 42, a lower fixing bracket 43, a bolt 44, a stopper 45, and a bolt 46. , Not particularly limited to this.
Further, in the present embodiment, when raising and lowering the support member 30, the assist device 50 is attached to the support column 20 to facilitate raising and lowering of the support member 30, but the work can be performed without particularly attaching the assist device 50. can.

10 Box 20 Support member 31 Box mounting part 32 Upper horizontal plate 32H Hole 33 Lower horizontal plate 33H Hole 34 Connecting bar 35 Ring 36 Reinforcing bar 40 Fixing member 41 Slide pipe 41A Flange 41B Flange 41C Protrusion 41D Projection 41E Part 42 Upper fixing bracket 43 Lower fixing bracket 44 Bolt 45 Stopper 46 Bolt 50 Assist device 51 Wire 61 Chain 62 Clip 100 Mobile terminal base station 200 Stand B Building

Claims (6)

It is a base station for mobile terminals in which a box containing an antenna, a control unit, and a transmission / reception unit (RRU (remote radio unit)) is mounted on a support column.
A support member that can be installed with the box tilted downward and that can be rotatably and vertically moved with respect to the support column.
A base station for a mobile terminal, comprising a fixing member for fixing the support member to the support column. A wire extending from the constant load spring side provided on the upper part of the column is connected to the support member, and an assist device capable of lowering or raising the support member with a constant force can be attached. The base station for a mobile terminal according to claim 1. A box containing the antenna, control unit, and transmitter / receiver unit is attached to the support column.
A support member that can be installed with the box tilted downward and that can be rotatably and vertically moved with respect to the support column.
A mobile terminal base station provided with a fixing member for fixing the support member to the support column.
The mobile terminal base station is installed at the edge or corner of the roof of the building so that the antenna in the box faces outward and downward of the building and the box is located above the column.
A method for installing a base station for a mobile terminal, characterized in that the box is rotated inward of the building via the support member at the time of maintenance and inspection. A box containing the antenna, control unit, and transmitter / receiver unit is attached to the support column.
A support member that can be installed with the box tilted downward and that can be rotatably and vertically moved with respect to the support column.
A mobile terminal base station provided with a fixing member for fixing the support member to the support column.
The mobile terminal base station is installed at the edge or corner of the roof of the building so that the antenna in the box faces outward and downward of the building and the box is located above the column.
At the time of maintenance and inspection or parts replacement, the box is rotated inward of the building via the support member, and then the box is moved downward. Installation method. A box containing the antenna, control unit, and transmitter / receiver unit is attached to the support column.
A support member that can be installed with the box tilted downward and that can be rotatably and vertically moved with respect to the support column.
A mobile terminal base station provided with a fixing member for fixing the support member to the support column.
The mobile terminal base station is installed at the edge or corner of the roof of the building so that the antenna in the box faces outward and downward of the building and the box is located above the column.
A base station for a mobile terminal, characterized in that the box is moved downward at the time of maintenance and inspection or parts are replaced, and then the box is rotated inward of the building via the support member. Installation method. The method for installing a base station for a mobile terminal according to any one of claims 3 to 5, wherein the box is rotated inward of the building in a range of 90 degrees to 180 degrees. ..

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