Dynamic Priority Assignment for Vehicular Repeater Talk Groups
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Solution Overview
Problem
Current communication networks using Vehicular Repeaters (VRs) do not allow multiple talk groups to utilize a single channel simultaneously, limiting communication to only one talk group at a time, as they lack a method for prioritizing and dynamically reassigning communication channels among multiple talk groups.
Innovation Solution
A method and system that uses a Mobile Subscriber Unit (MSU) to maintain a self-modifying list for dynamically assigning priorities among talk groups, allowing higher priority to active or emergency talk groups and lower priority to less active ones, enabling multiple talk groups to communicate through a single VR by reassigning channel access based on activity levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single channel is used for communication in a Vehicular Repeater system, then device complexity is reduced, but only one talk group can communicate at a time, reducing system capacity
Solution Approach 1:
The patent implements dynamic priority assignment where talk groups are assigned priorities based on their activity status. The Mobile Subscriber Unit continuously monitors talk group activity and dynamically reassigns priorities, allowing the system to adapt channel access rights in real-time. This dynamic mechanism enables multiple talk groups to share the single channel efficiently without requiring multiple physical channels.
Solution Approach 2:
The system changes the parameter of priority assignment based on talk group activity levels. By monitoring which talk groups are active and assigning higher priorities to active groups, the system transforms the static channel allocation into a parameter-based dynamic allocation mechanism, allowing multiple talk groups to access the channel simultaneously based on their activity parameters.
2Productivity
If multiple talk groups attempt to use the channel simultaneously, then communication capacity increases, but channel access conflicts arise, reducing communication reliability
Solution Approach 1:
The Mobile Subscriber Unit continuously monitors talk group activity and uses this feedback to dynamically adjust priority assignments. When a talk group becomes active, the system receives feedback about its activity status and accordingly assigns higher priority, ensuring reliable channel access. This feedback mechanism prevents conflicts by proactively managing channel access rights based on real-time conditions.
Solution Approach 2:
The system performs preliminary priority assignment before channel access is needed. By pre-establishing priority levels based on talk group activity status, the system prepares the channel access protocol in advance, ensuring that when multiple talk groups attempt simultaneous access, the pre-defined priorities resolve conflicts immediately without requiring complex real-time negotiation.
3Productivity
If priority is assigned based on talk group activity, then channel utilization efficiency improves, but system complexity increases due to monitoring and reassignment mechanisms
Solution Approach 1:
The Mobile Subscriber Unit performs self-monitoring of talk group activity and automatically manages priority assignments without requiring external intervention. The system serves itself by detecting which talk groups are active and autonomously adjusting priorities accordingly. This self-service approach improves channel utilization efficiency while keeping the complexity manageable by eliminating the need for complex external control mechanisms.
Data Source
AI summary
A method and system for assigning priority to a talk group of a plurality of talk groups in a communication network (100) is provided. The method includes detecting (304) activity on a first talk group (108) via a Vehicular Repeater (VR) (106). The first talk group is associated with a lower priority than that of a second talk group (110). The method also comprises assigning (306) a higher priority to the first talk group and the lower priority to the second talk group, based on the step of detecting. Further, the method comprises dynamically re-assigning (308) the higher priority and the lower priority amongst the plurality of talk groups, based on detecting activity.