Interference Power Control for Spectrum Sharing Protection Points
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Solution Overview
Problem
In spectrum sharing scenarios where a primary system like a field pickup unit (FPU) operated in the 2.3 GHz band is protected against secondary systems, such as a helicopter, the conventional methods require numerous protection points to cover the wide range of the moving body, leading to a significant calculation burden.
Innovation Solution
A communication control device that sets multiple protection points, determines target points for interference power calculation, calculates a representative value of interference power, and determines allowable power at these points to reduce calculation volume while ensuring accurate protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a large number of protection points are set to cover the entire moving range of the aerial body, then the protection accuracy of the primary system is improved, but the calculation volume for interference power increases enormously
Solution Approach 1:
The patent segments the protective space by dividing it into multiple regions and setting protection points only at specific locations within each region (such as at predetermined heights or at positions where the aerial body is most likely to be present). This segmentation approach maintains protection accuracy by ensuring adequate coverage while significantly reducing the total number of protection points required, thereby lowering the calculation volume for interference power assessment.
2Adaptability or versatility
If protection points are set in the altitude direction for aerial moving bodies, then the protection coverage is improved, but the number of protection points and calculation burden increase
Solution Approach 1:
The patent applies local quality by setting protection points at specific altitudes rather than uniformly distributing them throughout the entire altitude range. Protection points are placed at predetermined heights or at locations where the aerial body is most likely to operate, providing enhanced protection coverage where needed while avoiding unnecessary calculation points in areas with lower risk or lower sensitivity, thus reducing the overall number of protection points required.
Data Source
AI summary
A communication control device according to one embodiment of the present disclosure includes: a setting unit that sets a plurality of protection points in the protective space that protects a first radio system from a second radio system that performs shared use of the radio wave used by the first radio system; a determination unit that determines the target protection point to be the calculation target of the interference power received from the second radio system based on the plurality of protection points set by the setting unit; an interference power calculation unit that calculates the representative value of the interference power based on the interference power calculated for the target protection point determined by the determination unit; and an allowable power calculation unit that calculates the allowable power indicating the allowable interference power at the target protection point based on the representative value of the interference power calculated by the interference power calculation unit.