Wireless Base Station Relief Carrier Tilting for Aggregated Failures
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Solution Overview
Problem
Existing methods for relieving communication failures in wireless base station failures are inefficient, leading to insufficient relief carriers, prolonged calculation times, and reduced communication quality due to radio wave interference.
Innovation Solution
A control device that aggregates adjacent failure areas, selects multiple relief carriers, and simultaneously optimizes tilt angles to improve coverage rates and reduce overlap, using an objective function that includes coverage rates and penalty terms for coverage area size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single relief carrier is used to cover the failure area, then the device complexity is reduced, but the coverage completeness and speed of relief are insufficient
Solution Approach 1:
The patent aggregates multiple adjacent failure areas into a single comprehensive failure area, and selects multiple relief carriers to simultaneously cover different regions of the aggregated failure area. This merging approach enables parallel coverage of multiple zones, significantly improving the speed of relief while maintaining manageable complexity through centralized aggregation logic.
Solution Approach 2:
The patent segments the aggregated failure area into multiple sub-regions, each covered by a dedicated relief carrier. This segmentation allows simultaneous optimization of multiple carriers with different tilt angles to cover different portions of the failure area, improving overall coverage completeness without requiring a single complex carrier to handle the entire area.
2Reliability
If multiple relief carriers are selected to cover the failure area, then the coverage completeness is improved, but the radio wave interference increases
Solution Approach 1:
The patent applies local quality by determining different optimal tilt angles for each relief carrier based on its specific coverage responsibilities within the aggregated failure area. Each carrier is locally optimized to cover its designated region with appropriate beam direction, ensuring complete coverage while minimizing overlap and radio wave interference between carriers.
Solution Approach 2:
The patent changes the tilt angle parameter for each relief carrier to optimize coverage and minimize interference. By simultaneously optimizing multiple tilt angles, the system achieves complete coverage of the failure area while controlling the degree of beam overlap, thus reducing harmful radio wave interference.
3Productivity
If tilt angles are optimized sequentially for each relief carrier, then the calculation process is simpler, but the total calculation time increases
Solution Approach 1:
The patent merges the optimization processes of multiple relief carriers into a single simultaneous optimization operation. Instead of sequentially optimizing each carrier's tilt angle, the system determines all optimal tilt angles in parallel, significantly reducing total calculation time while managing complexity through unified mathematical modeling.
Data Source
AI summary
A control apparatus that determines a relief carrier that relieves communication in a failure area occurring when an antenna of a wireless base station fails and a tilt angle of the relief carrier includes: a failure area aggregation unit that aggregates a plurality of adjacent failure areas to collectively generate a single aggregated failure area; a relief carrier selection unit that selects a plurality of relief carriers for the aggregated failure area; and a tilt angle determination unit that simultaneously optimizes a plurality of tilt angles in the plurality of relief carriers.