User Identity Management in 5G UE for Session Control
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Solution Overview
Problem
Current 5G communication systems lack effective mechanisms to manage and limit the number of simultaneously active users per User Equipment (UE), leading to inefficiencies in resource allocation and service delivery, particularly in scenarios where multiple users share the same UE.
Innovation Solution
The introduction of a 'user priority' attribute in user profiles and a maximum number of users per UE parameter, allowing the network or UE to determine and release users with the lowest priority when the threshold is exceeded, ensuring optimal resource management and service accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple users share the same UE simultaneously, then user experience and service accessibility are improved, but resource allocation efficiency and network management complexity deteriorate
Solution Approach 1:
The patent segments user identities into multiple independent user identities (first user identity, second user identity, etc.) that can coexist within a single UE. Each user identity is managed separately with its own PDU session, allowing the network to control and manage each user's resources independently while maintaining service accessibility for multiple users simultaneously.
Solution Approach 2:
The patent implements dynamic user identity management where the network can activate or deactivate specific user identities based on current network conditions, service requirements, and resource availability. The AMF dynamically determines which user identities to release when thresholds are exceeded, enabling flexible adaptation to changing conditions while managing network complexity.
2Productivity
If the number of active users per UE is increased, then service delivery capability is improved, but resource allocation efficiency and network performance deteriorate
Solution Approach 1:
The patent implements a feedback mechanism where the network monitors the number of active user identities per UE and compares it against a configured threshold. When the threshold is exceeded, the network automatically triggers user identity release procedures to maintain resource allocation efficiency. This closed-loop feedback system balances service delivery capability with resource efficiency by dynamically adjusting the number of active users based on current conditions.
Solution Approach 2:
The patent changes the state of user identities from active to inactive/released based on the number of active users. When the threshold is exceeded, the network modifies the parameter of user identity activation status, transitioning from a state where all user identities remain active to a state where excess user identities are released, thereby optimizing resource allocation efficiency while maintaining necessary service delivery capability.
3Reliability
If user-specific identities are implemented, then user experience and service optimization are improved, but authentication and authorization complexity increase
Solution Approach 1:
The patent implements a universal authentication mechanism where a single UE handles multiple user identities through a unified authentication and authorization framework. The UE and network use the same authentication procedures for all user identities, eliminating the need for separate authentication systems for each user. This multi-functional approach maintains reliable user-specific service delivery while avoiding the complexity of multiple independent authentication systems.
Data Source
AI summary
The current disclosure proposes a controlling method including: determining a user with lowest priority among users in User Equipment, UE, simultaneously used by the users in a case where the number of users of the UE exceeds a threshold; and initiating a release procedure for a PDU session of the user with lowest priority, wherein the threshold indicates a max allowed number of users for the UE.