SMS UE Context Updates by Access Type in 5G Core Networks
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Solution Overview
Problem
Current SMS service management in 3GPP 5GS systems lacks the ability to update user equipment context information on a per-access type basis, leading to inefficient registration and potential issues between different releases of the 3GPP protocol.
Innovation Solution
Introduce a new update service operation that allows for per-access type management of user equipment context information, enabling the addition or removal of specific access types without affecting the entire UE context, using AMF and SMSF nodes to manage 3GPP and non-3GPP access types separately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If activate or deactivate operations are used to manage UE context information, then the entire UE context can be created or removed, but it is impossible to update only specific access type contexts while preserving others
Solution Approach 1:
The patent segments the UE context information by access type (3GPP access, non-3GPP access, untrusted non-3GPP access). Each access type maintains its own context information independently within the SMSF. This allows the AMF to update, add, or remove context for a specific access type without affecting other access types, enabling fine-grained control over context management.
2Measurement precision
If per access type context information is maintained, then precise control over specific access types is achieved, but the complexity of managing multiple context types increases
Solution Approach 1:
The patent implements a universal update service operation that can handle multiple access types through a single standardized interface. The Nsmf_SMService_Update service operation accepts an access type parameter and performs the appropriate context update for the specified access type, providing a multi-functional solution that simplifies management while maintaining precision.
3Productivity
If existing activate and deactivate operations are used, then service operations can be performed, but registration updates are incomplete as they override entire contexts rather than allowing selective updates
Solution Approach 1:
The patent extracts the access type specification from the context management operation, allowing the system to selectively update only the relevant access type context information. The update service operation takes out and modifies only the necessary portion (specific access type context) while preserving other access type contexts, preventing unnecessary information loss.
Data Source
AI summary
Apparatuses and methods tor an update service operation tor short message service, SMS, service are disclosed. In one embodiment, a method implemented in access and mobility management function, AMF, node (S104) includes performing an update service operation with a short message service function, SMSF, node to add or remove a first user equipment, UE, context information associated to a first access type, the update service operation indicating to the SMSF node the first access type to add or remove. In some embodiment, a method implemented in a short message service function, SMSF, node (S106) includes performing an update service operation with an access and mobility management, AMF, node to add or remove a first user equipment, UE, context information associated to a first access type, the update service operation indicating to the SMSF node the first access type to add or remove.