Talk Group Assignment to Dedicated 5G Network Slices

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Solution Overview

Problem

Existing 5G communication systems for public safety do not efficiently utilize network slices to optimize communications for different user groups within public-safety systems, such as public safety personnel and emergency workers, who require constant and reliable voice communication.

Innovation Solution

A method and apparatus that assign and associate specific talkgroups to particular network slices, allowing devices to communicate via a dedicated network slice optimized for their needs, such as high reliability, security, ultra-low latency, or high data speeds, through network function virtualization (NFV) architecture and network slicing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If network slices are provided to different user groups in 5G communications, then communication quality and reliability are improved, but system complexity increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidnetwork complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the 5G network into multiple virtual network slices, each dedicated to specific user groups or communication types (e.g., public safety, emergency services). This segmentation allows different quality levels and resource allocations for different user groups while maintaining overall network management through a unified architecture, thus improving reliability without proportionally increasing complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a talkgroup creation controller as an intermediary component that manages the association between talkgroups and network slices. This controller simplifies the complexity by providing a centralized mechanism to automatically assign network slices to talkgroups based on predefined criteria, reducing the manual configuration burden and system complexity while maintaining high reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If talkgroups are assigned to network slices, then communication efficiency is improved, but assignment management complexity increases

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidassignment management complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements preliminary action by pre-configuring the mapping relationships between talkgroups and network slices before actual communication occurs. The talkgroup creation controller stores this mapping information in advance, allowing for automatic and efficient assignment during operation without requiring real-time complex decision-making, thus improving communication efficiency while simplifying management.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system enables self-service through automatic assignment mechanisms where devices or talkgroups automatically receive the appropriate network slice based on their identification and predefined criteria. The talkgroup creation controller handles the assignment process autonomously without requiring manual intervention, reducing management complexity while maintaining high communication efficiency.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12389204B2Method and apparatus for assigning talk groups to network slices
Publication Date: 2025.08.12 MOTOROLA SOLUTIONS INC
  • US12389204B2 patent drawing
  • US12389204B2 patent drawing
  • US12389204B2 patent drawing

AI summary

A method and apparatus for assigning and associating devices using a particular talkgroup to a particular network slice is provided herein. During operation talkgroups within a communication system will be assigned to particular network slices. Some network slices may have a single talkgroup assigned to them, and other network slices may have multiple talkgroups assigned to them. During operation, communication-system infrastructure will conduct all communications for a group of devices over a particular talkgroup via a particular network slice.