Dynamic Spectrum Management for Priority-Based Interference Mitigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently utilizing spectrum resources, especially when multiple communication systems with different priority levels operate in the same frequency band, leading to suboptimal spectrum usage and potential interference.
Innovation Solution
A spectrum management apparatus and method that dynamically adjusts exclusive indexes to ensure high-priority communication systems are protected while maximizing spectrum usage efficiency by determining and adjusting exclusive regions and frequency bands, using a combination of geographical and stochastic models to optimize interference mitigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If spectrum resources are allocated to multiple communication systems with different priority levels in the same frequency band, then spectrum usage efficiency is improved, but communication quality of high-priority systems deteriorates due to interference
Solution Approach 1:
The patent segments the frequency band into multiple sub-bands and assigns different sub-bands to communication systems based on their priority levels. High-priority systems are allocated specific sub-bands with protected exclusive regions, while low-priority systems use remaining sub-bands. This segmentation allows multiple systems to operate simultaneously without mutual interference, improving spectrum usage efficiency while maintaining communication quality of high-priority systems.
Solution Approach 2:
The patent implements local quality by creating exclusive regions around high-priority communication systems where low-priority systems are restricted from operating. Within these exclusive regions, only high-priority systems can transmit, ensuring their communication quality is not degraded by interference from low-priority systems. Outside these regions, low-priority systems can utilize spectrum resources, improving overall spectrum usage efficiency.
2Reliability
If exclusive regions are established to protect high-priority communication systems, then communication quality is maintained, but spectrum resources cannot be fully utilized
Solution Approach 1:
The patent applies dynamics by making the exclusive regions adjustable rather than fixed. The spectrum management apparatus dynamically adjusts the size and position of exclusive regions based on the actual transmission power and location of high-priority systems. When high-priority systems reduce transmission power or move locations, their exclusive regions are reduced, allowing low-priority systems to access previously protected spectrum resources. This dynamic adjustment maintains communication quality while maximizing spectrum usage efficiency.
Solution Approach 2:
The patent changes parameters by adjusting the exclusive index (which defines the exclusive region) based on transmission power levels. When transmission power decreases, the exclusive index is reduced, shrinking the exclusive region and allowing more low-priority systems to access spectrum resources. This parameter change ensures communication quality is maintained at actual power levels while improving spectrum utilization by allowing flexible resource sharing.
3Reliability
If fixed spectrum allocation is used for licensed services, then communication quality is ensured, but spectrum resources remain underutilized
Solution Approach 1:
The patent implements self-service by enabling low-priority communication systems to autonomously access and utilize spectrum resources that are not currently being used by high-priority systems. The spectrum management apparatus provides information about available resources and exclusive regions, and low-priority systems self-organize to use remaining spectrum resources without requiring dedicated fixed allocation. This allows spectrum resources to be dynamically shared, improving usage efficiency while licensed high-priority systems maintain their communication quality through protected exclusive regions.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Provided are a spectrum management apparatus and method, and an apparatus and method for wireless communication. The spectrum management apparatus comprises: a determining unit, configured to determine an exclusive indicator of a high priority communications system that exists in a management range of the spectrum management apparatus, the exclusive indicator represents a range of the high priority communications system in space and/or frequency domains that is isolated from other communications systems; and an adjustment unit, configured to adjust the exclusive indicator when there are multiple exclusive indicators.