Base Station–Reflector Radio Zone Design for Low-Cost Coverage
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Solution Overview
Problem
Existing station placement designs for radio communication systems fail to meet necessary communication requirements at low cost by combining base stations and reflectors.
Innovation Solution
A station placement design device that arranges base stations and reflectors to minimize cost by selecting candidate positions and orientations, using a combination of base stations and reflectors to accommodate all terminal positions, and determining the optimal arrangement to meet communication requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a base station is installed to cover all terminal positions, then communication coverage is improved, but system cost increases
Solution Approach 1:
The patent combines base stations and reflectors into a hybrid system where reflectors are used to extend coverage in NLOS areas, reducing the number of base stations needed while maintaining communication coverage requirements
Solution Approach 2:
Reflectors are introduced as intermediary elements between base stations and terminals in NLOS regions, enabling signal redirection and coverage extension without requiring additional base station installations
2Reliability
If reflectors are added to extend coverage to NLOS areas, then communication coverage is improved, but system complexity increases
Solution Approach 1:
The patent performs preliminary identification of NLOS terminal positions and pre-determines optimal reflector placement locations and orientations before system deployment, simplifying the overall system configuration process
Solution Approach 2:
Reflectors are selectively deployed only in specific NLOS areas where needed, rather than uniformly across the entire coverage area, optimizing the balance between coverage extension and system complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables station placement design that meets necessary communication requirements at low cost by combining base stations and reflectors, optimizing the arrangement to minimize costs.
Implementation Method 1
a second selection unit configured to select, in a case where there is a terminal position that is not able to be accommodated by the candidate position for the base station among the plurality of terminal positions, a candidate position for the reflector capable of accommodating, in combination with the candidate position for the base station, the terminal position that is not able to be accommodated
Data Source
AI summary
A station placement design device for designing arrangement of a base station and a reflector for constructing a radio area, the station placement design device including a processor that executes arranging terminal positions and candidate positions for an installation position of the base station or the reflector in the radio area; calculating received power between the terminal position and the candidate positions and received power between the candidate positions; selecting a candidate position for the base station from among the candidate positions; selecting, if there is a terminal position that is unable to be accommodated by the candidate position for the base station, a candidate position for the reflector capable of accommodating the terminal position; and determining arrangement of the base station and the reflector in which a cost of the radio area is minimized.