Guide Rail Mounting for Base Station Remote Radio Units
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Solution Overview
Problem
Existing base station antennas (BSA) and remote radio units (RRU) require separate installation, leading to uncertain jumper line lengths and difficult installation due to potential misalignment and interference during RRU mounting under gravity, especially when heavy RRUs are suspended.
Innovation Solution
A mounting device with a guide rail and fixing device that facilitates easy mounting and dismounting of RRUs onto BSAs, utilizing a guide element and quick locking devices to secure the RRU at a predetermined position, allowing pre-assembly and simplified installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the RRU is suspended and moved to a predetermined installation position during the mounting process, then the RRU can be installed on the BSA, but the orientation of the heavy RRU under the action of gravity may be different from that required during installation, and a rope for suspending the RRU may interfere with surrounding objects
Solution Approach 1:
The patent applies preliminary action by providing a mounting device that is pre-assembled and integrated onto the BSA before RRU installation. The mounting device includes mounting plates, connecting pieces, and fastening mechanisms that are prepared in advance, allowing the RRU to be directly mounted without suspension and manual positioning, thereby eliminating rope interference and orientation issues.
Solution Approach 2:
The mounting device serves as an intermediary between the BSA and the RRU. It includes mounting plates connected to the BSA via connecting pieces, and the RRU is then mounted to these plates using fastening mechanisms. This intermediary structure facilitates precise positioning and secure attachment without requiring suspension ropes or manual orientation adjustments.
2Area of stationary object
If the BSA and the RRU are separately mounted on different poles, then they need separate installation spaces, but the jumper lines for electrically connecting the BSA and the RRU cannot be determined in advance
Solution Approach 1:
The patent merges the BSA and RRU mounting locations by providing a mounting device that integrates both components onto the same pole structure. The mounting plates are connected to the BSA mounting structure, allowing the RRU to be mounted adjacent to or integrated with the BSA, thereby eliminating the need for separate poles and enabling predetermined jumper line lengths.
3Manufacturing precision
If a guide rail is used to guide the RRU into the mounting position, then the RRU can be precisely positioned, but the mounting device structure becomes more complex
Solution Approach 1:
The mounting device is segmented into modular components including mounting plates, connecting pieces, and fastening mechanisms. The guide rail is integrated as part of this modular structure, allowing precise positioning functionality to be achieved through coordinated simple components rather than a single complex structure. Each segment performs a specific function and can be independently assembled.
Data Source
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AI summary
The invention relates to a mounting device for mounting a remote radio unit to a base station antenna, including: a single guide rail (4) configured to be mounted to the base station antenna (1) and extending transversely in a mounting state of the guide rail on the base station antenna; a guide element (8) configured to be mounted to the remote radio unit (2) and movable along the guide rail in a mounted state of the guide element on the remote radio unit; and a fixing device such as a plurality of quick locking devices (10) configured to fix the remote radio unit on the base station antenna at a predetermined installation position of the remote radio unit relative to the base station antenna. The invention also relates to a base station antenna system, which includes a base station antenna, a remote radio unit and the above-mentioned mounting device. By use of such a mounting device, the remote radio unit may be easily mounted on the base station antenna, and the whole base station antenna system is compact in structure.