Dynamic Spectrum Arbitrage for Emergency Network Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Cellular communication networks face overloads during emergencies due to increased demand, leading to dropped calls and unreliable communication for first responders, and existing solutions like WPA systems do not adequately address the need for preemptive access and prioritization of emergency communications.
Innovation Solution
Implementing Tiered Priority Access (TPA) and Dynamic Spectrum Arbitrage (DSA) systems to dynamically manage radio frequency spectrum resources, allocating unused spectrum to emergency responders and prioritizing their communications by reallocating network resources and spectrum usage based on real-time demand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RF spectrum resources are allocated statically to primary users, then primary users have guaranteed access, but spectrum utilization efficiency deteriorates when primary users do not continuously employ the bands
Solution Approach 1:
The patent implements dynamic spectrum allocation where secondary users can access RF bands when primary users are not continuously employing them. The system monitors primary user activity and dynamically grants access to secondary users during unused periods, making the spectrum allocation flexible rather than static. This resolves the contradiction by maintaining reliability for primary users while improving overall spectrum utilization efficiency through dynamic sharing.
Solution Approach 2:
The system performs preliminary monitoring of primary user spectrum employment patterns to identify unused bands before allocating them to secondary users. By detecting when primary users are not actively using assigned frequencies, the system proactively makes those bands available for secondary use, preventing spectrum waste while ensuring primary users maintain their guaranteed access rights.
2Productivity
If more RF spectrum bands are allocated to meet increasing demand, then capacity increases, but spectrum scarcity worsens due to finite RF bandwidth
Solution Approach 1:
The patent merges primary and secondary user networks by allowing secondary users to access RF bands when primary users are not employing them. This combining of previously separate allocation schemes enables the system to serve both primary and secondary users within the same finite spectrum, effectively increasing network capacity without requiring additional RF bandwidth.
Solution Approach 2:
The system makes RF spectrum bands universal by enabling them to serve dual purposes: primary user communications when needed, and secondary user communications during unused periods. This multi-functionality allows the same physical spectrum resources to fulfill multiple communication needs, effectively increasing capacity while working within finite RF bandwidth constraints.
3Reliability
If emergency services use dedicated voice-radio communication bands, then emergency communication is ensured, but these bands remain largely unused during non-emergency periods
Solution Approach 1:
The system performs preliminary monitoring of emergency service band usage to detect when these dedicated frequencies are not actively employed. By identifying unused emergency bands in advance, the system can temporarily allocate them to secondary users during non-emergency periods while ensuring immediate availability for emergency services when needed, thus maintaining reliability while reducing spectrum waste.
Data Source
AI summary
Methods and system are provided for managing and monitoring allocation of RF spectrum resources based on time, space and frequency. A network may be enabled to allocate excess spectrum resources for use by other network providers on a real-time basis. Allocated resources may be transferred from one provider with excess resources to another in need of additional resources based on contractual terms or on a real-time purchase negotiations and settlements. A network may be enabled to monitor the use of allocated resources on real-time basis and off-load or allow additional users depending on the spectrum resources availability. Public safety networks may be enabled to make spectrum resources available to general public by allocating spectrum resources and monitoring the use of those resources. During an emergency, when traffic increases on a public safety network, the public safety networks may off-load bandwidth traffic to make available necessary resources for public safety users.