Mobile Relay Agent for Public Safety D2D Communications
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Solution Overview
Problem
Public safety networks face challenges in ensuring reliable and secure device-to-device communications, especially during coverage failures or emergencies, where commercial cellular networks may not provide sufficient capacity or priority for public safety users.
Innovation Solution
Configuring commercial user devices or public safety devices to operate as mobile relay agents or gateways, allocating public safety specific spectrum, and utilizing commercial resources for mobile backhaul services to ensure reliable device-to-device communications and priority for public safety usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If commercial cellular networks are used for public safety communications, then device complexity is reduced and ease of operation is improved, but reliability and priority for public safety usage deteriorate during coverage failures or emergencies
Solution Approach 1:
A mobile relay node is introduced as an intermediary between public safety user equipment and the commercial cellular network. The relay node includes a wireless communication unit that can communicate with both commercial network base stations and public safety devices, a processing unit that manages communication protocols and routing, and a relay unit that forwards data packets between the two networks. This intermediary structure allows public safety communications to leverage commercial network infrastructure while maintaining reliability through dedicated relay functionality.
2Device complexity
If commercial resources are used for mobile backhaul services, then device complexity and infrastructure requirements are reduced, but communication reliability and security for public safety usage deteriorate
Solution Approach 1:
The system segments communication resources into public safety-specific spectrum bands and commercial network resources. The mobile relay node is configured to allocate specific frequency bands for public safety device-to-device communications while utilizing commercial network resources for backhaul services. This segmentation allows public safety communications to have dedicated spectrum resources for reliability while leveraging commercial infrastructure for cost-effectiveness and reduced complexity.
3Reliability
If public safety specific spectrum is allocated to device-to-device communications, then communication reliability and priority are improved, but spectrum resource availability and device complexity worsen
Solution Approach 1:
The system merges public safety device-to-device communications with commercial cellular network backhaul services in a unified mobile relay architecture. The mobile relay node combines public safety-specific spectrum allocation for direct device communications with commercial network spectrum resources for backhaul connectivity. This merging allows both public safety and commercial services to share the same physical infrastructure while maintaining dedicated spectrum resources for reliability-critical public safety operations.
Data Source
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AI summary
The invention relates to an apparatus comprising: at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: select and configure a commercial user device to operate as a mobile relay agent for public safety usage and/or a public safety device to operate as a mobile relay and/or a mobile gateway for public safety usage, allocate a public safety specific spectrum to device-to-device communications for the public safety usage, and provide mobile backhaul services by using commercial resources.