Radio Resource Management Server for Interference Reduction
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Solution Overview
Problem
Conventional radio-resource management systems in wireless networks struggle to optimize radio resource allocation across multiple operators, leading to inefficiencies in frequency utilization and increased interference, especially in overlapping service areas where load distribution and interference management are not effectively coordinated.
Innovation Solution
A radio-resource management system that collects and analyzes radio-link quality information from multiple base stations and terminals across different operators to dynamically adjust frequency channels, transmitted power, and load distribution, enabling integrated management and optimal resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If each radio operator manages radio resources independently with exclusive frequency band licenses, then radio interference between operators is avoided and management becomes easy, but frequency availability efficiency decreases when traffic demand is less than forecasted
Solution Approach 1:
The patent merges the independent radio resource management systems of multiple operators into a unified management platform. The radio resource management server collects information from multiple operators' base stations and terminals, and coordinates resource allocation across operators to improve frequency availability efficiency while maintaining manageable operation through centralized control.
Solution Approach 2:
The radio resource management server performs multiple functions: collecting radio-link quality information from various operators, analyzing interference patterns, allocating frequency channels, and coordinating load distribution. This universal management approach allows the system to handle diverse operational policies while optimizing overall resource utilization.
2Adaptability or versatility
If wireless LAN systems use unlicensed frequency bands (2.4 GHz and 5 GHz) for shared access, then multiple operators and private networks can utilize the same spectrum, but radio interference occurs between overlapping networks
Solution Approach 1:
The system continuously collects radio-link quality information from terminals and base stations, including signal strength, error rates, and interference levels. This feedback is used to dynamically adjust frequency channel assignments and transmitted power levels to minimize interference while maintaining versatile frequency sharing across multiple operators and networks.
Solution Approach 2:
The patent implements dynamic frequency channel selection and power adjustment based on real-time interference conditions. The radio resource management server can reassign frequency channels and modify transmission parameters on-the-fly to adapt to changing network conditions, allowing multiple operators to share spectrum efficiently without excessive interference.
3Ease of manufacture
If autonomous radio-resource management is implemented at terminal or base station level, then implementation is easy and unification of management policy is achieved, but optimal resource allocation cannot be made when multiple operators with different policies operate in the same area
Solution Approach 1:
The radio resource management server acts as an intermediary between multiple operators' autonomous management systems. It collects information from various operators, coordinates their resource allocation decisions, and ensures optimal overall resource distribution while respecting each operator's operational policies. This mediator approach maintains implementation ease while achieving superior allocation optimality.
4Area of stationary object
If service areas of multiple operators overlap in public spaces, then service coverage is improved, but interference management becomes difficult without coordinated control
Solution Approach 1:
The patent merges the interference management functions of multiple operators into a unified coordination system. The radio resource management server aggregates information from all operators' base stations in overlapping areas and coordinates frequency channel assignments and power levels to manage interference, thereby enabling expanded service coverage without excessive complexity at individual operator levels.
Data Source
AI summary
Terminals and base stations belonging to service areas 100 to 102 of plural radio operators periodically measure a radio-link quality and an availability ratio of a radio link to notify them to a radio-resource management server 40. The server 40 alters a frequency of the base station, and a transmitted-power quantity of the base station and the terminal based on these measured results to improve the radio-link quality, and reduces interference with a neighboring radio system. When a load is concentrated on a network of a specific radio operator, an instruction of handover is given to the terminal from the server 40 to realize a load distribution within the radio operator, and between the radio operators. When the server 40 detects excessive radio interference between the radio operators, it notifies occurrence of a fault, an interference quantity, a quantity of the transmitted power that the base station should attenuate, and the frequency that the base station should alter to the above radio operator that becomes an interference source.