Dynamic Call Priority Adjustment for Emergency Communication Reliability
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Solution Overview
Problem
Current communication systems lack the ability to dynamically change the priority of active calls in emergency situations, where calls of critical importance may be prematurely terminated due to higher priority preemption, posing risks such as hazardous interruptions.
Innovation Solution
A system and method allowing authorized users to change the priority level of active calls from a pre-established level to another, either higher or lower, ensuring that critical calls are not terminated prematurely by propagating the new priority through the network to all relevant nodes and switches, and resetting the priority after the call is terminated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If preemption is implemented to allow high priority users to terminate existing calls, then bandwidth utilization is improved, but call reliability deteriorates for critical calls
Solution Approach 1:
The patent changes the priority parameter of an active call dynamically during the call. The system allows an authorized user to modify the priority level of an existing call from its pre-established level to a new level, preventing preemption when the call becomes critical. This parameter change resolves the contradiction by allowing the call to maintain high priority (improving reliability) while still allowing the network to utilize bandwidth efficiently for non-critical calls.
2Device complexity
If fixed pre-established priority levels are assigned to calls, then network management is simplified, but adaptability to changing emergency situations deteriorates
Solution Approach 1:
The patent introduces dynamic priority adjustment capability to the call system. Instead of fixed priority levels, the system now allows real-time modification of priority during active calls. This enables adaptability to changing emergency situations while maintaining relatively simple network management through centralized control. The dynamic nature allows critical calls to be protected from preemption when needed, resolving the contradiction between simplicity and adaptability.
3Device complexity
If no method exists to change call priority for active calls, then system complexity is reduced, but the ability to prevent hazardous interruptions is lost
Solution Approach 1:
The patent introduces an intermediary mechanism (priority change system) that sits between the call management functions and the preemption logic. This intermediary allows authorized users to modify call priority dynamically, preventing hazardous interruptions without requiring complete system redesign. The intermediary layer adds minimal complexity while providing the crucial ability to prevent harmful preemptions of critical calls.
Data Source
AI summary
An active call between two parties can be established as a call having priority over other users in a tiered priority system. Changes to the level of priority are permitted if made by an authorized user in attendance on the active call. The change of call priority can be to either raise or lower the priority based on call circumstances. If approved, the new active call priority level is propagated to other nodes and switches so that system knowledge of the new priority level is consistent. The new priority level is reset to the pre-established call priority level after the active call is completed.