UE Group Context Management for 5G Signaling Optimization
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Solution Overview
Problem
Existing communication networks face challenges in managing UE contexts and PDU session contexts, particularly in 5G networks with increased IoT device connectivity, leading to high network resource usage for storage and signaling.
Innovation Solution
The implementation of UE group contexts and shared PDU session contexts, where multiple UEs share a common context, allowing network functions to send a single control message for multiple UEs, reducing the need for individual messages and optimizing network resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual UE contexts and PDU session contexts are managed separately for each UE, then each UE receives dedicated service management, but network resource usage for storage and signaling increases significantly
Solution Approach 1:
The patent merges multiple UE contexts and PDU session contexts into a shared group context. When multiple UEs share the same group ID, their contexts are consolidated into a single group context stored in the network, eliminating redundant storage of identical context data for each individual UE while maintaining the ability to manage services for each UE within the group.
Solution Approach 2:
The group context is designed to serve multiple UEs simultaneously. A single group context can be shared by multiple UEs with the same group ID, allowing the network to manage services for multiple UEs through one universal context structure, thereby reducing overall network resource consumption while maintaining individual service capabilities.
2Ease of operation
If control messages are sent individually to each UE for context management, then precise control is achieved, but signaling overhead increases
Solution Approach 1:
The patent enables control messages to be merged and sent to a group context instead of individual UE contexts. When multiple UEs share a group context, a single control message can update the shared context for all UEs in the group, significantly reducing signaling overhead while maintaining the ability to precisely control each UE's service through group-level management.
3Productivity
If UE context information is stored in the MME, then faster bearer establishment is achieved, but storage requirements increase
Solution Approach 1:
The patent consolidates context storage by creating a shared group context that serves multiple UEs. Instead of storing separate context data for each UE in the MME, the group context is stored once and shared by all UEs in the group, reducing total storage requirements while maintaining fast bearer establishment through local context availability.
Data Source
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AI summary
There is provided systems and methods for the grouping of UEs, such that UEs can share a UE group context or share a PDU session context or both. In this manner, network resource usage, with respect to UE context and PDU session context management, can be mitigated.