IOPS MBMS Bearer for Mission Critical Group Communication
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Solution Overview
Problem
Current systems lack effective support for MBMS transmissions in Mission Critical (MC) group communications during the IOPS mode of operation, which is critical for ensuring service continuity and resilience in public safety communications.
Innovation Solution
The implementation of MBMS-based transmissions within the IOPS mode of operation, where MC services are directly provided by MC users and transmitted over an IOPS MC system and IOPS EPS network, with pre-established and dynamically managed MBMS bearers to ensure efficient group communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If MBMS-based transmissions are implemented for MC group communications on IOPS mode of operation, then service continuity and communication efficiency are improved, but system complexity increases due to the need for pre-established and dynamically managed MBMS bearers
Solution Approach 1:
The patent applies preliminary action by pre-establishing MBMS bearers before IOPS mode activation. The network node pre-configures MBMS parameters, establishes bearers, and configures radio resources in advance, so that when IOPS mode is activated, communication can continue without interruption. This pre-preparation eliminates the need for complex real-time bearer establishment during critical operations.
Solution Approach 2:
The patent introduces an intermediary mechanism through the network node that manages MBMS bearer configuration and coordination between different network elements. The network node acts as a mediator that handles the complexity of bearer management, resource allocation, and coordination between IOPS-capable eNBs and the core network, simplifying the overall system architecture.
2Productivity
If MBMS bearers are pre-established and dynamically managed to support MC services on IOPS, then communication efficiency and group transmission reliability are improved, but network infrastructure requirements increase
Solution Approach 1:
The patent applies universality by designing the MBMS bearer management mechanism to serve multiple functions simultaneously. The same MBMS bearer infrastructure supports both pre-established bearers for rapid activation and dynamic bearer management for ongoing communications. This multi-functional approach consolidates network infrastructure requirements rather than requiring separate systems for different communication scenarios.
Solution Approach 2:
The patent implements dynamics by enabling the network to adaptively manage MBMS bearers based on real-time communication needs. The system can dynamically establish, modify, and release bearers according to actual traffic conditions and IOPS mode requirements, allowing the network infrastructure to flexibly accommodate varying communication demands without requiring over-provisioned static infrastructure.
3Reliability
If IOPS mode of operation is activated to ensure resilience during network failures, then service availability is improved, but the complexity of managing MBMS transmissions increases
Solution Approach 1:
The patent resolves this contradiction by pre-establishing all necessary MBMS bearers and configuring all required radio resources before IOPS mode activation. This preliminary configuration ensures that when network failures occur and IOPS mode is activated, the system can immediately resume service without complex real-time management decisions, thereby maintaining service availability while reducing operational complexity during critical events.
Data Source
AI summary
Disclosed herein is a method performed by an IOPS application function, AF, to provide a group communication service. The method comprises: establishing an IOPS MBMS bearer, the IOPS MBMS bearer being an MBMS bearer within a MBSFN area served by one or more radio access nodes that are operating in an IOPS mode of operation; discovering one or more UEs via an IOPS discovery procedure; sending to the one or more UEs, an MBMS bearer announcement for the IOPS MBMS bearer.