Dynamic Spectrum Arbitrage Grid-Map Handover
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Solution Overview
Problem
The increasing demand for radio frequency spectrum due to wireless communication devices leads to congestion in cellular networks, particularly during emergencies, as existing systems struggle to dynamically allocate underutilized telecommunication resources efficiently across networks.
Innovation Solution
A dynamic spectrum arbitrage system that includes a dynamic spectrum policy controller, dynamic spectrum controller, and eNodeB, which generates a grid-map structure to monitor wireless device locations and initiate inter-network handover operations, allocating resources between networks based on geographical areas and mobility management to optimize resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic spectrum arbitrage is implemented to allocate underutilized RF spectrum, then network resource utilization is improved, but system complexity increases
Solution Approach 1:
A spectrum broker entity is introduced as an intermediary between primary users and secondary users. The broker receives spectrum usage requests, determines availability of underutilized RF spectrum, and coordinates handover operations. This intermediary simplifies the overall system by centralizing the complexity of spectrum management rather than requiring direct complex interactions between all network components.
Solution Approach 2:
The spectrum management function is segmented into distinct components: the spectrum broker, handover control entities in first and second networks, and monitoring systems. This segmentation allows each component to handle specific tasks independently, reducing overall system complexity while improving resource allocation efficiency through specialized functions.
2Productivity
If inter-network handover operations are initiated to transfer wireless devices, then network congestion is reduced, but handover control complexity increases
Solution Approach 1:
The system continuously monitors wireless device locations, network congestion levels, and spectrum availability. Based on this feedback, the spectrum broker dynamically determines when and where to initiate handover operations. This feedback mechanism allows the system to respond automatically to changing conditions without requiring complex manual control, reducing handover management complexity while maintaining optimal network performance.
Solution Approach 2:
The handover control is made dynamic rather than static. The system adapts handover decisions based on real-time conditions including wireless device movement, network congestion levels, and spectrum availability. This dynamic approach allows the system to optimize network throughput by performing handovers only when and where needed, rather than following fixed rules, thereby reducing unnecessary handover complexity.
3Reliability
If wireless devices are transferred between networks during emergencies, then service reliability is improved, but coordination overhead increases
Solution Approach 1:
The spectrum broker pre-establishes agreements and protocols with both first and second networks before emergencies occur. Spectrum availability and handover procedures are predetermined through these preliminary arrangements. When emergencies arise, the broker can immediately execute pre-planned handover operations without time-consuming negotiations or coordination, thus maintaining service reliability while minimizing coordination overhead during critical events.
Data Source
AI summary
A dynamic spectrum arbitrage (DSA) system includes a dynamic spectrum policy controller (DPC) and a dynamic spectrum controller (DSC) that together dynamically manage the allocation and use of resources (e.g., spectrum resources) across different networks. As part of these operations, the DSC may generate a grid-map structure that includes a primary grid structure that identifies telecommunication cells in a geographical area, and monitor the locations of wireless devices with respect to the telecommunication cells of the grid-map structure to determine whether to initiate inter-network handover operations. The DSC may also receive updated information from the monitored wireless devices (e.g., wireless devices that attached to the resources of the lessee or lessor networks), update the grid-map structure based on the updated information to better account for changes in the availability of resources, and determine whether to initiate inter-network handover operations based on information included in the updated grid-map structure.