Cellular Radio Emission Control via Priority-Based Power Allocation
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Solution Overview
Problem
In cellular communication systems, existing technologies face challenges in efficiently managing radio frequency emissions across cells with overlapping coverage areas, leading to regulatory limits on maximum radiation levels, which can impact service performance and compliance.
Innovation Solution
An apparatus and method that determine a set of cells with overlapping coverage, prioritize cells based on radio access technology quality, and allocate a maximum radiation level to each cell, allowing a smaller power reduction for higher-priority cells, thereby optimizing transmission power while adhering to regulatory limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radio emissions are increased to improve service performance in overlapping cells, then wireless service quality is improved, but regulatory radiation limits are exceeded
Solution Approach 1:
The patent applies local quality by differentiating radiation allocation across different cells based on their priority levels and service requirements. High-priority cells (e.g., providing critical services) receive higher radiation allocations while low-priority cells receive reduced allocations, allowing each cell to have customized radiation characteristics suited to its specific function rather than uniform limitation across all cells
Solution Approach 2:
The patent changes the parameter of maximum radiation level from a fixed regulatory limit to a dynamically allocated value based on cell priority, current radiation levels, and service requirements. This allows the system to adjust radiation parameters within regulatory constraints to optimize service quality while maintaining compliance
2Object-affected harmful factors
If uniform radiation limits are applied to all cells, then regulatory compliance is ensured, but service performance in high-priority cells deteriorates
Solution Approach 1:
The patent implements local quality by assigning different radiation allocation strategies to different cells based on their priority classification. High-priority cells maintain radiation levels closer to maximum limits to ensure service quality, while low-priority cells operate at reduced levels, creating localized optimization throughout the network while maintaining overall regulatory compliance
3Object-affected harmful factors
If power reduction is applied to meet radiation limits, then regulatory compliance is achieved, but transmission quality and service performance decrease
Solution Approach 1:
The patent changes the approach to power reduction from uniform application to selective application based on cell priority. Instead of reducing power across all cells, the system identifies high-priority cells and maintains their power levels closer to maximum, while applying power reduction primarily to low-priority cells, thereby minimizing the impact on transmission quality while achieving compliance
4Adaptability or versatility
If multiple radio access technologies operate in overlapping cells, then network capacity and versatility are improved, but radiation management complexity increases
Solution Approach 1:
The patent applies universality by creating a unified radiation management framework that handles multiple radio access technologies (LTE, 5G, etc.) and different cell types (macro, micro, pico cells) through a single priority-based allocation mechanism. This universal approach simplifies management despite the diversity of technologies by treating them all through the same regulatory compliance lens while allowing technology-specific optimizations
Data Source
AI summary
This document discloses a solution for controlling radio emissions in cells of a cellular communication system. According to an aspect, a method includes determining a set of cells having a spatially overlapping coverage area in a sector, wherein the set of cells includes at least a first cell and a second cell; determining a maximum total radiation level for the sector; determining a priority of each cell in the set of cells such that the first cell is prioritized over the second cell; and allocating, on the basis of the maximum total radiation level and said priorities, to each cell in the set of cells a parameter indicating a maximum radiation level in the respective cell, wherein said allocating is performed such that a smaller power reduction from a maximum transmission power is allowed for the first cell than for the second cell.