WO2015125408A1 - 無線通信装置及び通信機器の取り付け構造 - Google Patents
無線通信装置及び通信機器の取り付け構造 Download PDFInfo
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- WO2015125408A1 WO2015125408A1 PCT/JP2015/000187 JP2015000187W WO2015125408A1 WO 2015125408 A1 WO2015125408 A1 WO 2015125408A1 JP 2015000187 W JP2015000187 W JP 2015000187W WO 2015125408 A1 WO2015125408 A1 WO 2015125408A1
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- unit
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- mounting base
- antenna
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
- H01Q1/1228—Supports; Mounting means for fastening a rigid aerial element on a boom
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/03—Constructional details, e.g. casings, housings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3888—Arrangements for carrying or protecting transceivers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
- H01Q19/13—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
- H01Q19/134—Rear-feeds; Splash plate feeds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B2001/3894—Waterproofing of transmission device
Definitions
- the present disclosure relates to a communication device mounting structure for a point-to-point wireless device.
- a point-to-point wireless system using microwaves or millimeter waves is known.
- two communication devices perform digital communication via a point-to-point wireless link.
- each communication device includes a directional antenna for communicating with the opposite device using point-to-point wireless technology, and directs a directional beam toward the opposite device.
- a point-to-point wireless link is established between the two communication devices.
- each of the two communication devices constituting the point-to-point wireless system that is, a communication device that communicates with the opposite device using the point-to-point wireless technology is referred to as a point-to-point wireless device.
- Point-to-point wireless systems have advantages in terms of ease of network construction, high economic efficiency, and relaxation of restrictions on the location of base stations, compared to wired connection using optical fibers.
- Point-to-point wireless systems are used, for example, in mobile backhaul.
- the mobile backhaul means a line for connecting a base station of the cellular communication system to the core network and a line for connecting the base stations.
- Patent Documents 1 and 2 disclose point-to-point wireless devices.
- the point-to-point wireless device disclosed in Patent Document 1 includes an antenna and front-end device (Outdoor Unit (ODU)) installed outdoors, and a back-end device (Indoor Unit (IDU)) installed indoors.
- the front-end device (ODU) is responsible for analog signal processing, such as frequency up / down conversion and amplification, in the carrier frequency band (Radio frequency (RF) band).
- RF Radio frequency
- the back-end unit (IDU) is responsible for digital signal processing in the baseband, for example, channel encoding / decoding, interleaving / deinterleaving, and modulation / demodulation.
- the front-end device can also be called an RF unit.
- the back-end device can also be called a baseband unit.
- the point-to-point wireless device disclosed in Patent Document 2 has a configuration in which an electronic device for performing point-to-point wireless communication with an opposing device is arranged in one casing that can be installed outdoors.
- the point-to-point wireless device disclosed in Patent Document 2 has a structure in which a front-end electronic circuit module and a back-end electronic circuit module are arranged in one casing.
- the front-end electronic circuit module includes a circuit that performs analog signal processing (for example, frequency conversion and signal amplification) in the RF band.
- the back-end electronic circuit module includes a circuit that performs digital signal processing (for example, transmission path encoding and modulation / demodulation) in the baseband.
- the front-end electronic circuit module can also be called an RF circuit.
- the back-end electronic circuit module can also be called a baseband circuit.
- the point-to-point wireless device with an integrated configuration (All-in-one, integrated configuration) disclosed in Patent Document 2 requires, for example, wiring work to connect between an RF unit and a baseband unit that are arranged separately. There is an advantage of not. However, an integrated point-to-point wireless device may have some inconveniences.
- front-end electronic circuit modules require different circuit components (eg amplifiers) and different waveguide shapes depending on the carrier frequency used, transmission power, etc.
- the back-end electronic circuit module baseband circuit
- the RF unit and the baseband unit are separated from each other, it is possible to easily change the carrier frequency and the transmission output by exchanging only the RF unit without exchanging the baseband unit. it can.
- the separated configuration is used, it is easy to perform partial hardware upgrade of the RF unit or the baseband unit, so that it can be considered that it can contribute to the reduction of the capital investment cost.
- the point-to-point wireless device fails, only the RF unit or only the baseband unit can be replaced, so that it can be expected to reduce the maintenance cost.
- the separation configuration may have drawbacks compared to the integrated configuration. For example, it may be difficult to secure installation spaces for the RF unit and the baseband unit. Further, in the separated configuration, the wiring length of the intermediate frequency (IF) cable between the RF unit and the baseband unit may be longer than that in the integrated configuration. A long wiring length may not be preferable in relation to the failure rate.
- IF intermediate frequency
- one of the objects to be achieved by the embodiments disclosed herein is to provide a communication device mounting structure for a point-to-point wireless device that can contribute to suppressing the disadvantages of the separation configuration described above. Is to provide. It should be noted that this object is only one of the objects that the embodiments disclosed herein intend to achieve. Other objects or problems and novel features will become apparent from the description of the present specification or the accompanying drawings.
- the mounting structure includes a mounting base, a baseband unit, and an RF unit.
- the baseband unit has a first housing that houses a first electronic circuit module that performs digital signal processing in the baseband and has dustproof and waterproof properties that can be installed outdoors.
- the RF unit has a second casing that houses a second electronic circuit module that performs analog signal processing in a carrier frequency band and that is dustproof and waterproof and can be installed outdoors.
- the attachment base is fixed to an antenna for supporting the antenna by being attached to an antenna or a structure for communicating with the opposite apparatus by a point-to-point wireless technology.
- the antenna includes a front portion that radiates an electric field, and a back portion having a waveguide flange that is positioned opposite to the front portion and is coupled to the waveguide of the RF unit.
- the baseband unit is supported by the mounting base by fixing the first housing to the mounting base.
- the baseband unit supported by the mounting base faces the back portion and is disposed so as to form a space between the back portion and the first housing.
- the RF unit is supported by the mounting base by fixing the second casing to the mounting base.
- the RF unit supported by the mounting base is disposed in the space and coupled to the waveguide flange.
- FIG. 1 is an exploded perspective view of a point-to-point wireless device according to a first embodiment.
- 1 is an exploded perspective view of a point-to-point wireless device according to a first embodiment.
- 1 is an exploded side view of a point-to-point wireless device according to a first embodiment.
- 1 is a side view of a point-to-point wireless device according to a first embodiment.
- 1 is a side view of a point-to-point wireless device according to a first embodiment.
- FIG. 1 is a block diagram illustrating a configuration example of a point-to-point wireless apparatus 1 according to the present embodiment.
- the point-to-point wireless device 1 employs a separation configuration. That is, the point-to-point wireless device 1 includes a baseband unit 11 and an RF unit 12 that can each be installed outdoors.
- the baseband unit 11 includes a baseband processor 1111 that performs digital signal processing in the baseband band.
- the baseband unit 11 may include other electronic circuit modules, for example, a DA converter (DAC) 1112, an AD converter (ADC) 1113, and a controller 1114.
- DAC DA converter
- ADC AD converter
- the baseband processor 1111 performs transmission path coding (for example, Forward Error Correction (FEC) encoding) on transmission data, maps the encoded data sequence to a transmission symbol, and band-passes the transmission symbol sequence with a low-pass filter. And thereby generate a transmit baseband signal.
- the DA converter 1112 converts the digital transmission baseband signal into an analog signal.
- the AD converter 1113 converts the reception IF signal into a digital signal.
- the baseband processor 1111 performs demodulation processing in the digital domain. That is, the baseband processor 1111 multiplies the digital reception IF signal with the digital sine wave signal, performs low-pass filter processing, and thereby generates an orthogonal baseband signal.
- the baseband processor 1111 performs symbol determination (symbol demapping) on the orthogonal baseband signal and generates a reception data sequence. Furthermore, the baseband processor 1111 performs error correction on the received data string in accordance with a transmission path encoding scheme (for example, FEC) performed by the opposite apparatus.
- a transmission path encoding scheme for example, FEC
- the controller 1114 performs overall control of the point-to-point wireless device 1. For example, the controller 1114 adaptively adjusts the modulation scheme and coding rate in the baseband processor 1111 based on the communication quality of the point-to-point wireless link.
- the baseband unit 11 has a housing 111.
- the casing 111 has dustproof and waterproof properties that can be installed outdoors, and accommodates the electronic circuit modules of the baseband unit 11 (that is, the baseband processor 1111, DA converter 1112, AD converter 1113, etc.) inside. .
- the dustproof and waterproof performance of the housing 111 may be, for example, a performance corresponding to IP66 in IEC-60529 defined by International Electrotechnical Commission (IEC).
- the RF unit 12 includes a TX-RF 1211 and an RX-RF 1212 that perform analog signal processing in a carrier frequency band as shown in FIG.
- the TX-RF 1211 generates a modulated signal by mixing the analog transmission baseband signal supplied from the DA converter 1112 with a local oscillator signal, and increases the modulated signal to a radio frequency (RF).
- the signal is converted, and the RF signal is amplified and sent to the antenna 13.
- the RX-RF 1212 amplifies the received RF signal received by the antenna 13 using a Low Noise Amplifier (LNA), and down-converts the received RF signal to an Intermediate frequency (IF) band.
- LNA Low Noise Amplifier
- the point-to-point wireless device 1 may perform two-way communication using Time Division Duplex (TDD).
- TDD Time Division Duplex
- a high frequency switch may be used for switching between transmission and reception.
- the RF unit 12 has a housing 121.
- the housing 121 has dustproof and waterproof properties that can be installed outdoors, and accommodates the electronic circuit module (that is, TX-RF1211, RX-RF1212, etc.) of the RF unit 12 therein.
- the dustproof and waterproof performance of the housing 121 may be, for example, a performance corresponding to IP66 in IEC 60529.
- FIG. 2 is a diagram illustrating an external configuration example and an installation example of the point-to-point wireless device 1.
- 3 and 4 are exploded three-dimensional views of the point-to-point wireless device 1.
- 5 and 6 are exploded side views of the point-to-point wireless device 1.
- the baseband unit 11 includes receptacles 112 and 113, heat radiation fins 114, and grips (handles) 117.
- the receptacles 112 and 113 are arranged on the bottom surface 111D of the casing 111.
- the heat radiating fins 114 are arranged on the front surface 111 ⁇ / b> A of the housing 111.
- the grip 117 is disposed on the upper surface 111 ⁇ / b> C of the housing 111 and is used for gripping the housing 111.
- the receptacle 112 is connected to a communication cable between the baseband unit 11 and an external device (for example, a base station device, a router, a layer 2 switch, etc.).
- the receptacle 113 is connected to a communication cable (IF cable) between the baseband unit 11 and the RF unit 12.
- the receptacle 112 may be shared for supplying power to the baseband unit 11. This power supply may be performed by, for example, Power over Ethernet (PoE).
- PoE Power over Ethernet
- the casing 121 of the RF unit 12 is provided with a receptacle 122 and a waveguide flange 123.
- the receptacle 122 is connected to a communication cable (IF cable) between the baseband unit 11 and the RF unit 12.
- the waveguide flange 123 is coupled with the waveguide flange 133 of the antenna 13 for electric field radiation.
- the antenna 13 has a front part 131 and a back part 132 that radiate an electric field.
- the front part 131 includes a surface that radiates an electric field toward the opposite device for point-to-point communication.
- the back portion 132 is positioned opposite to the front portion 131 and has a waveguide flange 133.
- the waveguide flange 133 is coupled to the waveguide of the RF unit 12 (waveguide flange 123).
- the antenna 13 is supported by the antenna bracket 15.
- the antenna bracket 15 is attached to a structure 50 (for example, a streetlight pole, a building wall surface, and an antenna tower).
- the attachment base 14 is used for attaching the baseband unit 11 and the RF unit 12 to the antenna 13 or the antenna bracket 15.
- the mounting base 14 is fixed to the antenna 13 or the antenna bracket 15. 2 to 6, the mounting base 14 is fixed to the back portion 132 of the antenna 13.
- the baseband unit 11 is supported by the mounting base 14 by fixing the casing 111 to the mounting base 14.
- the RF unit 12 is supported by the mounting base 14 by fixing the housing 121 to the mounting base 14.
- the baseband unit 11 supported by the mounting base 14 faces the back portion 132 of the antenna 13 and is disposed so as to form a space between the back portion 132 and the casing 111 (baseband unit 11).
- the RF unit 12 supported by the mounting base 14 is disposed in a space between the back portion 132 and the casing 111 (baseband unit 11).
- the RF unit 12 supported by the mounting base 14 has its waveguide flange 123 coupled to the waveguide flange 133 of the antenna 13.
- the mounting base 14 includes a mounting plate 141, an upper stay member 142, and a lower stay member 143 in order to form a space for arranging the RF unit 12.
- the mounting plate 141 has a flat surface on which the RF unit 12 is disposed, and an opening 144 is formed on the surface.
- the opening 144 is used to connect the waveguide flange 133 of the antenna 13 and the waveguide flange 123 of the RF unit 12 through the mounting plate 141.
- the upper stay member 142 and the lower stay member 143 rise from the attachment plate 141 and are used to support the baseband unit 11.
- the point-to-point wireless device 1 adopts a separated configuration, and the baseband unit 11 and the RF unit 12 have separate casings 111 and 112.
- the baseband unit 11 and the RF unit 12 are arranged apart from each other, the above-described installation space problem or IF cable wiring length problem may occur. Therefore, in this embodiment, as shown in FIGS. 2 to 6, the baseband unit 11 and the RF unit 12 are both disposed close to the back portion 132 of the antenna 13. Therefore, it is possible to suppress the disadvantages of the separation configuration (that is, the problem of installation space or the problem of the wiring length of the IF cable).
- the back surface 111 ⁇ / b> B of the casing 111 of the baseband unit 11 may be formed with a recessed region 115 in the center portion thereof.
- the rear surface 111B is a surface that is opposite to the front surface 111A and faces the back portion 132 of the antenna 13 when the housing 111 is supported by the mounting base.
- the recessed area 115 is recessed toward the inside of the housing 111.
- At least a part of the housing 121 of the RF unit 12 is provided when the baseband unit 11 and the RF unit 12 are supported by the mounting base 14 as shown in FIG. 6 (side view).
- 111 may be disposed in the recessed region 115 in a side view.
- the baseband unit 11 and the RF unit 12 need to be housed in separate casings 111 and 121, respectively. Therefore, in general, the entire volume or installation space of the point-to-point wireless device 1 in the separated configuration may be larger than that in the integrated configuration.
- the baseband unit 11 and the RF unit 12 are installed by the structure shown in FIGS. 5 and 6 (that is, a structure in which at least a part of the housing 121 is disposed in the recessed region 115 in a side view).
- the thickness of the device projecting from the back portion 132 of the antenna 13
- the volume when the point-to-point wireless device 1 is installed can be suppressed.
- the baseband unit 11 may be provided with a grip 117.
- the grip 117 By providing the grip 117 on the baseband unit 11, the baseband unit 11 can be easily and safely removed when replacing the RF unit 12 that is required when the carrier frequency or transmission output of the RF unit 12 is changed. 12 can be exchanged. Since the point-to-point wireless device 1 is often installed in a high antenna tower, it is extremely important that the RF unit 12 can be replaced safely and easily in maintenance work at such a high place. In particular, since the baseband unit 11 is larger in size and weight than the RF unit 12, the grip 117 provided on the baseband unit 11 can suppress the disadvantages of the separation configuration.
- the RF unit 12 supported on the mounting base 14 may be configured to be able to take the first posture shown in FIG. 6 and the second posture shown in FIG. .
- the second posture shown in FIG. 7 is rotated 90 degrees from the first posture around the rotation axis R passing through the waveguide flanges 123 and 133.
- the inclination of the polarization plane (linearly polarized wave) of the electric field radiated from the antenna 13 can be easily changed.
- the first posture corresponds to vertical polarization
- the second posture corresponds to horizontal polarization.
- the shape of the recessed region 115 of the baseband unit 11 does not interfere with the casing 121 of the RF unit 12 regardless of whether the RF unit 12 is in the first posture (FIG. 6) or the second posture (FIG. 7). Should be defined as As a result, the posture of the RF unit 12 disposed in the space between the baseband unit 11 and the antenna 13 can be physically rotated while the posture of the baseband unit 11 is fixed, and thus the point-to-point wireless device The polarization of 1 can be easily changed.
- At least one of the receptacles 112 and 113 may be disposed on the bottom surface 111 ⁇ / b> D of the housing 111.
- the rear surface 111 ⁇ / b> B of the housing 111 has a region 116 positioned around the recessed region 115.
- the thickness (D2) between the region 116 and the front surface 111A is thicker than the thickness (D1) between the recessed region 115 and the front surface 111A.
- disposing the receptacle 112 or 113 or both on the bottom surface 111 ⁇ / b> D continuous with the surrounding region 116 contributes to increasing the depth of the recessed region 115. This is because the thickness (D1) of the casing 111 in the recessed region 116 can be reduced without being restricted by the shape of the receptacle 112 or 113 or both.
- FIGS. 8-11 are given the same reference numerals as the corresponding equipment, elements, and members shown in FIGS. 1-7.
- . 8 and 9 are projection views showing a front view (A), a right side view (B), a rear view (C), and a plan view (D) of the point-to-point wireless device 1.
- FIG. 8 does not show the antenna 13, and shows the positional relationship of the baseband unit 11, the RF unit 12, and the mounting base 14 when the point-to-point wireless device 1 is installed.
- FIG. 8 does not show the antenna 13, and shows the positional relationship of the baseband unit 11, the RF unit 12, and the mounting base 14 when the point-to-point wireless device 1 is installed.
- FIG. 9 omits the illustration of the mounting base 14 and the grip 117 as compared with FIG. 8, and shows the arrangement relationship between the baseband unit 11 and the RF unit 12.
- FIG. 10 is a rear view of the baseband unit 11 and shows a detailed structure of the rear surface 111 ⁇ / b> B of the housing 111.
- FIG. 11 is an exploded side view of the baseband unit 11, the RF unit 12, and the mounting base 14.
- the RF unit 12 is disposed in a space formed when the baseband unit 11 is attached to the attachment base 14 (that is, a space between the back surface 111B of the housing 111 and the attachment plate 141). That is, both the baseband unit 11 and the RF unit 12 are disposed in proximity to the back portion 132 of the antenna 13. Therefore, it is possible to suppress the disadvantages of the separation configuration (that is, the problem of installation space and the problem of the wiring length of the IF cable).
- the back surface 111B of the casing 111 may have a recessed region 115 as clearly shown in FIGS.
- At least a part of the housing 121 of the RF unit 12 is a side surface of the housing 111 when the baseband unit 11 and the RF unit 12 are supported by the mounting base 14 as clearly shown in FIGS. 9 and 11.
- the shape of the recessed region 115 of the baseband unit 11 is such that the RF unit 12 has a first posture (for vertical polarization) and a second posture (for horizontal polarization). In any case, it may be defined so as not to interfere with the casing 121 of the RF unit 12. Accordingly, the attitude of the RF unit 12 can be physically rotated while the attitude of the baseband unit 11 is fixed, and therefore the polarization of the point-to-point wireless device 1 can be easily changed.
- the receptacle 112 or 113 or both of them may be disposed on the bottom surface 111D continuous to the surrounding region 116.
- the thickness (D1) of the casing 111 in the recessed region 116 can be reduced without being restricted by the shape of the receptacle 112 or 113 or both. Therefore, it is possible to contribute to increasing the depth of the recessed region 115.
- the arrangement of the heat dissipating fins 114 is changed as compared to the configuration examples shown in FIGS. Specifically, the radiating fins 114 are arranged on the back surface 111 ⁇ / b> B instead of the front surface 111 ⁇ / b> A of the housing 111. As clearly shown in FIGS. 9 and 10, the radiation fins 114 are provided at least in the region 118.
- the region 118 is a region located between the recessed region 115 and the upper surface 111 ⁇ / b> C of the housing 111 in the back surface 111 ⁇ / b> B of the housing 111.
- Such arrangement of the radiation fins 114 not only contributes to improving the aesthetics of the point-to-point wireless device 1, but can also contribute to reducing the volume of the point-to-point wireless device 1 at the time of installation.
- the arrangement of the grips 117 is changed compared to the configuration examples shown in FIGS. Specifically, the grip 117 is provided on the back surface 116 of the housing 111 and is disposed so that the grip 117 cannot be seen in the front view of the housing 111.
- Such an arrangement of the grip 117 not only contributes to an improvement in the aesthetics of the point-to-point wireless device 1, but can also contribute to a reduction in the volume of the point-to-point wireless device 1 at the time of installation.
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Abstract
Description
図1は、本実施の形態に係るポイントツーポイント無線装置1の構成例を示すブロック図である。ポイントツーポイント無線装置1は、分離構成を採用している。すなわち、ポイントツーポイント無線装置1は、各々が屋外に設置可能なベースバンドユニット11及びRFユニット12を含む。ベースバンドユニット11は、図1に示されているように、ベースバンド帯域でのデジタル信号処理を行うベースバンドプロセッサ1111を含む。ベースバンドユニット11は、その他の電子回路モジュール、例えば、DAコンバータ(DAC)1112、ADコンバータ(ADC)1113、及びコントローラ1114を含んでもよい。
本実施形態では、図8~図11を参照して、ポイントツーポイント無線装置1の外部構成の変形例が説明される。対比を容易にするために、図8~図11に示された機器、要素、及び部材は、図1~図7に示された対応する機器、要素、及び部材と同じ符号が付与されている。図8及び図9の各々は、ポイントツーポイント無線装置1の正面図(A)、右側面図(B)、背面図(C)、及び平面図(D)を示す投影図である。なお、図8は、アンテナ13の図示を省略しており、ポイントツーポイント無線装置1の設置時におけるベースバンドユニット11、RFユニット12、及び取り付けベース14の配置関係を示している。図9は、図8に比べてさらに取り付けベース14及びグリップ117の図示を省略しており、ベースバンドユニット11及びRFユニット12の配置関係を示している。図10は、ベースバンドユニット11の背面図であり、筐体111の背面111Bの詳細な構造を示している。図11は、ベースバンドユニット11、RFユニット12、及び取り付けベース14の分解側面図である。
11 ベースバンドユニット
12 RFユニット
13 アンテナ
14 取り付けベース
15 アンテナブラケット
50 構造物
111 筐体
111A 正面
111B 背面
111C 上面
111D 底面
112 レセプタクル
113 レセプタクル
114 放熱フィン
115 凹み領域
117 グリップ(取っ手)
121 筐体
122 レセプタクル
123 導波管フランジ
131 フロント部
132 バック部
133 導波管フランジ
141 取り付けプレート
142 上ステー部材
143 下ステー部材
144 開口
116 グリップ
1111 ベースバンドプロセッサ
1112 DAコンバータ
1113 ADコンバータ
1114 コントローラ
1211 TX-RF
1212 RX-RF
1213 デュプレクサ
Claims (6)
- 取り付けベースと、
ベースバンド帯域でのデジタル信号処理を行う第1の電子回路モジュールを収容し且つ屋外設置可能な防塵性及び防水性を有する第1の筐体を備えたベースバンドユニットと、
搬送波周波数帯域でのアナログ信号処理を行う第2の電子回路モジュールを収容し且つ屋外設置可能な防塵性及び防水性を有する第2の筐体を備えたRadio frequency(RF)ユニットと、
を備え、
前記取り付けベースは、ポイントツーポイント無線技術により対向装置と通信するためのアンテナ、又は前記アンテナを支持するアンテナブラケットに固定され、
前記アンテナは、電界を放射するフロント部と、前記フロント部の反対に位置し且つ前記RFユニットの導波管に結合される導波管フランジを有するバック部を備え、
前記ベースバンドユニットは、前記第1の筐体が前記取り付けベースに固定されることで前記取り付けベースに支持され、
前記取り付けベースに支持された前記ベースバンドユニットは、前記バック部に向かい合うとともに、前記バック部と前記第1の筐体の間に空間を形成するよう配置され、
前記RFユニットは、前記第2の筐体が前記取り付けベースに固定されることで前記取り付けベースに支持され、
前記取り付けベースに支持された前記RFユニットは、前記空間に配置され、且つ前記導波管フランジに結合される、
通信機器の取り付け構造。 - 前記第1の筐体は、前記取り付けベースに支持されたときに前記バック部に向かい合う第1の表面と、前記第1の表面の反対側の第2の表面と、前記第1の表面と前記第2の表面を連結する複数の側面を備え、
前記第1の表面は、その中央部分に凹み領域が形成されており、
前記第2の筐体の少なくとも一部は、前記ベースバンドユニット及び前記RFユニットが前記取り付けベースに支持されたときに、前記第1の筐体の側面視において前記凹み領域の中に配置される、
請求項1に記載の通信機器の取り付け構造。 - 前記取り付けベースに支持された前記RFユニットは、第1の姿勢、又は前記導波管フランジを通る回転軸の周りに前記第1の姿勢から90度回転された第2の姿勢を取ることができ、
前記凹み領域の形状は、前記RFユニットが前記第1の姿勢及び前記第2の姿勢のいずれであっても、前記第2の筐体と干渉しないよう定義されている、
請求項2に記載の通信機器の取り付け構造。 - 前記複数の側面は、前記取り付けベースが前記アンテナ又は前記アンテナブラケットに取り付けられたときに、鉛直上方に位置する上面を備え、
前記第1の表面は、前記上面と前記凹み領域の間に位置し、放熱フィンが形成された第1の領域を備える、
請求項2又は3に記載の通信機器の取り付け構造。 - 前記複数の側面は、前記取り付けベースが前記アンテナ又は前記アンテナブラケットに取り付けられたときに、鉛直下方に位置する底面を備え、
前記第1の表面は、前記凹み領域と前記底面の間に位置する第2の領域を備え、
前記第1の筐体の側面視において、前記第2の領域と前記第2の表面の間の厚みは、前記凹み領域と前記第2の表面の間の厚みに比べて厚く、
前記底面は、外部装置と接続するための第1の電気ケーブル・レセプタクル、及び前記ベースバンドユニットと前記RFユニットの間を接続するための第2の通信ケーブル・レセプタクルを有する、
請求項2~4のいずれか1項に記載の通信機器の取り付け構造。 - ベースバンド帯域でのデジタル信号処理を行う第1の電子回路モジュールを収容し、屋外設置可能な防塵性及び防水性を有し、さらに取っ手を有する第1の筐体を備えたベースバンドユニットと、
中間周波数帯域の信号を送受信するために通信ケーブルにて前記ベースバンドユニットと接続され、搬送波周波数帯域でのアナログ信号処理を行う第2の電子回路モジュールを収容し且つ屋外設置可能な防塵性及び防水性を有する第2の筐体を備えたRadio frequency(RF)ユニットと、
前記第2の筐体と前記第2の筐体を覆うように取り付けられた前記第1の筐体とを支持し、さらに前記第1及び第2の筐体を構造物に固定する取り付けベースと、
を備える、ポイントツーポイント無線技術により対向装置と無線通信を行う無線通信装置。
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