Communication Control Device for Boundary-Based Spectrum Protection
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Solution Overview
Problem
In the context of spectrum sharing, particularly in the 2.3 GHz band, protecting a primary system like a field pickup unit (FPU) on a moving body such as a helicopter requires numerous protection points, leading to excessive calculation volume for interference power, which is inefficient.
Innovation Solution
A communication control device that sets multiple protection points, determines target points for interference power calculation, and calculates a representative value of allowable interference power 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 protect the entire moving range of aerial bodies, then the protection accuracy for the primary system is improved, but the calculation volume for interference power becomes enormous
Solution Approach 1:
The patent divides the protective space into multiple regions and sets protection points at region boundaries rather than throughout the entire space. This segmentation approach reduces the number of protection points from potentially hundreds to a manageable set of boundary points, maintaining protection coverage while dramatically reducing calculation volume.
Solution Approach 2:
The patent calculates interference power at only the necessary boundary protection points rather than at all possible points within the protective space. This partial action approach focuses computational resources on critical locations that define protection zones, achieving adequate protection without exhaustive calculation.
2Reliability
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 volume increase significantly
Solution Approach 1:
The patent transitions from setting protection points throughout the three-dimensional protective space to setting them only at boundary surfaces of the protective space. This dimensional reduction from volume to surface decreases the number of protection points while maintaining comprehensive protection coverage through proper boundary definition.
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.