Incident Area Network Sub-System Synchronization
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Solution Overview
Problem
Public safety agencies face disruptions in communication services during incident response due to handovers between network sub-systems, as portable communications devices may lose connection to localized and global application instances, leading to service interruptions.
Innovation Solution
A system and method for forming an incident area network that includes synchronization between sub-systems, using a network core, domain name servers, global and localized application instances, and network address translators to maintain session continuity by transmitting global network addresses and synchronizing application instances across sub-systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If network sub-systems are connected to form an incident area network, then communication coverage is expanded, but service continuity is disrupted during handovers
Solution Approach 1:
The system performs preliminary synchronization between network sub-systems before handovers occur. Domain name servers exchange global network addresses and localized application instances are synchronized in advance, so that when a device moves between sub-systems, the connection information is already prepared and service continuity is maintained without interruption.
Solution Approach 2:
Domain name servers act as intermediaries between network sub-systems, exchanging connection information and global network addresses. This intermediary mechanism enables different sub-systems to share necessary data about application instances and network configurations, facilitating seamless handovers while maintaining service continuity across the expanded communication coverage area.
2Adaptability or versatility
If localized application instances are deployed in each sub-system, then service accessibility is improved, but connection loss occurs during handovers
Solution Approach 1:
The system implements both localized application instances (for sub-system-specific services) and global application instances (for services accessible across all sub-systems). Domain name servers manage both types, allowing devices to access appropriate services regardless of which sub-system they are currently connected to, while maintaining stable connections through synchronized address information during handovers.
Solution Approach 2:
Domain name servers continuously synchronize connection information between sub-systems, providing feedback about global network addresses and localized application instances. This feedback mechanism ensures that when devices handover between sub-systems, the necessary connection data is updated and available, preventing connection loss while maintaining access to both localized and global services.
3Reliability
If global network addresses are transmitted between sub-systems, then application instance accessibility is maintained, but network complexity increases
Solution Approach 1:
Domain name servers automatically perform the synchronization of global network addresses and connection information between sub-systems without requiring manual configuration or complex network setup. The system self-manages the exchange and maintenance of address information, reducing the operational complexity of managing multi-sub-system networks while ensuring reliable application instance accessibility.
Data Source
AI summary
A system and method for forming an incident area network including a first sub-system and a second sub-system. The method includes detecting, with an electronic processor of the first sub-system, a network connection to the second sub-system. The method includes initiating a sub-system synchronization process. The process includes including transmitting, from a first domain name server of the first sub-system to a second domain name server of the second sub-system, a first global network address for a first global application instance of the first sub-system, and a first name corresponding to the first global network address. The process includes transmitting, from a first network address translator of the first sub-system to a second network address translator of the second sub-system, the first global network address. The process includes synchronizing a first localized application instance of the first sub-system, with a second localized application instance of the second sub-system.