MCX Group State Notification via eMBMS Indexing
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Solution Overview
Problem
In Mission Critical Service (MCX) communication systems, there is a challenge in efficiently notifying the state of multiple members in large MCX groups to User Equipment (UE) due to increased load on the signaling control plane and latency issues, particularly when participants join or leave conferences.
Innovation Solution
A method and system that categorize members based on their state, use indexes instead of User IDs for schema optimization, and notify states through SIP headers and eMBMS channels, optimizing conference schema from User ID-centric to User State-centric, reducing bandwidth consumption by 65% and minimizing redundant information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If full state notification is generated for all members of huge MCX groups, then complete information is provided to UE, but signaling control plane load increases and latency increases
Solution Approach 1:
The patent extracts only the necessary state information changes from the full conference state and notifies only those changes to the UE. Instead of transmitting complete state information for all members, the system identifies and transmits only the delta changes (member joins, leaves, or state changes), significantly reducing signaling load while maintaining information completeness for what matters.
Solution Approach 2:
The patent segments the conference state into individual member states and tracks changes separately. By dividing the full state notification into incremental change notifications, the system can transmit only the essential updates rather than the complete state, reducing bandwidth and processing requirements while maintaining accurate state information.
2Loss of information
If User ID centric schema is used for conference documentation, then all member information is captured, but bandwidth consumption increases due to redundant information
Solution Approach 1:
The patent inverts the traditional User ID centric schema approach by adopting a User State centric schema. Instead of documenting conference members through their User IDs with full detail, the system documents only the state changes and essential information needed for the conference, eliminating redundant information while preserving necessary state data.
Solution Approach 2:
The patent extracts only the essential state information from the complete member database and includes only that in the conference documentation. By taking out and transmitting only the necessary state changes rather than all member information, the system reduces bandwidth consumption while maintaining information completeness for conference operations.
Data Source
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AI summary
Embodiments herein provide a method for notifying a state of a plurality of members of one or more Mission Critical Service (MCX) groups to an MCX UE in a MC communication system. The method includes identifying, by the MCX server, state of each member of one or more groups. The method includes categorizing, by the MCX server, plurality of members of one or more groups based on identified state of each member. Further, the method includes notifying, by MCX server, state of plurality of members of the one or more groups to the MCX UE based on the categorization. The MCX services include MCData, MCPTT (Voice) and MCVideo communication services. In some embodiments, the state of the members of the MCX groups is notified over an eMBMS channel. In various embodiments, the state of members of MCX groups is notified when a Floor is granted to the MCX user.