Spectrum Management Device Assigns Failover Frequencies
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Solution Overview
Problem
The increasing crowding of radio spectrum usage leads to conflicts between radio access nodes and incumbent users, necessitating efficient spectrum assignment and failover solutions to maintain bandwidth and prevent interference.
Innovation Solution
A spectrum management device determines and assigns access and failover spectrum assignments based on Priority Access Licenses, allowing radio access nodes to quickly resolve conflicts by switching to pre-designated failover frequencies without additional signaling, ensuring continuous communication and maintaining available bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If radio access nodes use priority access frequency bands to maintain available bandwidth, then spectrum utilization efficiency is improved, but conflicts with incumbent users occur more frequently
Solution Approach 1:
The spectrum management device pre-determines and assigns failover spectrum assignments to radio access nodes before conflicts occur. When a conflict is detected between the radio access node and incumbent user, the radio access node can immediately switch to the pre-assigned failover frequency without requiring additional signaling or negotiation, thus rapidly resolving the conflict while maintaining spectrum utilization efficiency.
2Speed
If spectrum management device determines failover spectrum assignments in advance, then conflict resolution speed is improved, but device complexity increases
Solution Approach 1:
The spectrum management device determines and assigns failover spectrum assignments to radio access nodes in advance, before conflicts occur. This pre-computation approach enables rapid conflict resolution when needed, as the radio access node can immediately switch to the pre-determined failover frequency without requiring complex real-time negotiation or additional signaling procedures.
Solution Approach 2:
The spectrum management device acts as an intermediary that pre-coordinates failover spectrum assignments between radio access nodes and incumbent users. By managing the failover assignments centrally in advance, the system avoids the need for complex real-time interactions during conflicts, simplifying the overall conflict resolution mechanism while maintaining high speed.
3Reliability
If radio access nodes switch to failover frequencies without additional signaling, then communication continuity is improved, but spectrum assignment coordination becomes more complex
Solution Approach 1:
The spectrum management device determines and communicates failover spectrum assignments to radio access nodes in advance, before conflicts occur. This allows radio access nodes to have the failover frequencies pre-configured and ready, enabling immediate switching when conflicts are detected without requiring additional signaling during the switch, thus maintaining communication continuity.
Solution Approach 2:
The spectrum management device serves as a central intermediary that pre-coordinates all failover spectrum assignments. By managing the coordination centrally in advance, the system ensures that radio access nodes can switch frequencies independently without complex real-time negotiation, maintaining both communication continuity and coordination simplicity.
Data Source
AI summary
A spectrum management device (110) determines spectrum assignments (205, 215) for a radio access node (120). The spectrum assignments (205, 215) comprise an access spectrum assignment (205) and a failover spectrum assignment (215) for replacing at least part of the access spectrum assignment (205) responsive to a conflict between the radio access node (120) and an incumbent user (130) with respect to the access spectrum assignment (205). The radio access node (120) is notified of the spectrum assignments (205, 215), and in response, the radio access node (120) commences radio communications according to the access spectrum assignment (205). In response to receiving notification to discontinue use of the at least part of the access spectrum assignment (205), the radio access node (120) replaces the at least part of the access spectrum assignment (205) with at least part of the failover spectrum assignment (215).