Dynamic Group Alias Updates for Public Safety Radio Incident Response
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Solution Overview
Problem
In public safety wireless communication systems, users face challenges in quickly configuring radios to join appropriate groups during emergencies, as pre-provisioned group IDs and aliases are not descriptive, and manual scanning is required, wasting bandwidth and complicating incident response.
Innovation Solution
A system and method that dynamically assigns temporary text-based group aliases and incident IDs, allowing radios to scan for communications without manual configuration, using a console to update group memberships and descriptions, enabling efficient group communication during incidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pre-provisioned group IDs and aliases are used in public safety wireless communication systems, then group communication functionality is provided, but the group aliases are not descriptive of particular incidents and manual scanning is required, wasting channel bandwidth and complicating incident response
Solution Approach 1:
The system performs preliminary actions by pre-configuring radios with scan lists containing multiple group IDs and aliases before incidents occur. However, the patent enhances this by enabling dynamic updates of group aliases during operations, so that when incidents arise, the aliases are already optimized for quick identification without requiring manual scanning or configuration changes at the radio level.
Solution Approach 2:
The patent implements dynamics by allowing group aliases to be dynamically updated and changed during system operation. The console can modify group aliases remotely, and these changes are distributed to subscriber radios in real-time. This enables the system to adapt to different incident scenarios without requiring manual reconfiguration of each radio, thus reducing incident response time while maintaining ease of operation.
2Loss of information
If manual scanning of channels is performed to discover group usage, then radio users can identify appropriate groups, but channel bandwidth is wasted and effective use of the channel is prevented
Solution Approach 1:
The system implements feedback mechanisms where the console monitors channel usage and group communication patterns, then uses this information to dynamically update and optimize group aliases. This feedback loop ensures that group identification information is accurately reflected in the aliases without requiring radios to manually scan channels, thereby preventing bandwidth waste while maintaining complete group identification information.
Solution Approach 2:
The patent introduces the console as an intermediary that mediates between the need for group identification and bandwidth conservation. Instead of radios directly scanning channels to discover group usage (which wastes bandwidth), the console acts as an intermediary that maintains centralized knowledge of group assignments and provides this information to radios through efficient updates, eliminating the need for bandwidth-intensive manual scanning.
3Stability of the object's composition
If changes to radio group membership are permanently stored at the radio, then configuration is stable, but temporary and continuous updates by remote entities are not allowed
Solution Approach 1:
The patent merges the stability of permanent storage with the flexibility of remote updates by combining local radio storage with centralized console management. The radio maintains a local copy of group membership information for stable operation, while the console can remotely update this information and distribute changes to multiple radios simultaneously. This merging allows the system to maintain configuration stability during normal operation while enabling adaptability when incidents require changes to group memberships or aliases.
Solution Approach 2:
The system achieves universality by creating a dual-mode configuration system that serves multiple functions: it maintains permanent stored configurations for stability during normal operation, and simultaneously enables temporary remote updates for adaptability during incidents. The radio can operate with its stored configuration while also receiving and applying remote updates when needed, making the system universally applicable to both stable and dynamic operational requirements.
4Quantity of substance
If multiple groups respond to the same incident with different group IDs, then comprehensive coverage is achieved, but it becomes difficult to discern which groups have responded and to locate particular transmissions
Solution Approach 1:
The patent introduces incident IDs as an intermediary layer that sits between multiple group IDs and the incident itself. Instead of directly tracking multiple group IDs during an incident, the system uses incident IDs to mediate and consolidate the information. The console can query which groups are associated with a particular incident ID, and radios can report their incident ID assignments, making it easy to discern which groups have responded to each incident without having to manually track multiple different group IDs across various channels.
Data Source
AI summary
An updated group alias, based on one or more of a location, function, and purpose of a group, is transmitted to a subscriber unit (SU) and displayed at the SU, in place of a previously provisioned group ID or group alias associated with the group, during communications with, or when the SU is tuned to, the group. An incident ID, associated with one or more groups and identifying an incident, is received and stored at a SU. The SU embeds the stored incident ID in all future communications with the one or more groups and, upon request, scans a set of groups and/or channels for communications having the incident ID embedded therein. An incident ID alias described one or more of a name, location, function, or purpose of the incident, may also be received and associated with the incident ID.