AMF SMS over NAS Capability Update Mechanism
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Solution Overview
Problem
The existing wireless communication technologies lack a mechanism for the network side to update the Short Message Service (SMS) over Non Access Stratum (NAS) support capability, leading to potential incorrect SMS attempts by User Equipment (UE) during deregistration initiated by the network.
Innovation Solution
The method involves the Access and Mobility Management Function (AMF) triggering a configuration update procedure to update the SMS over NAS support capability of the UE, including indications for re-registration, deregistration, or service request responses, to ensure accurate negotiation and update of SMS support capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network side does not have a mechanism to update SMS over NAS support capability, then the existing system structure remains simple, but the UE may make incorrect SMS attempts during network-initiated deregistration
Solution Approach 1:
The patent implements a feedback mechanism where the AMF receives capability information from the UE during registration, stores it in the UE context, and uses this feedback to determine whether to allow SMS over NAS. When network-initiated deregistration occurs, the AMF checks the stored capability information and appropriately handles the SMS capability update, preventing incorrect SMS attempts while maintaining system simplicity.
Solution Approach 2:
The patent applies preliminary action by having the UE provide SMS capability information during the initial registration procedure, and the AMF storing this information in advance in the UE context. This preliminary storage enables the AMF to make correct decisions during subsequent network-initiated deregistration without requiring complex real-time update mechanisms.
2Adaptability or versatility
If the AMF stores SMS capability information in UE context during registration, then the network can accurately manage SMS support capability, but additional storage and processing requirements are introduced
Solution Approach 1:
The patent applies universality by using the existing UE context structure in the AMF to store SMS capability information. The AMF's existing registration and context management functions are enhanced to also handle SMS capability storage and retrieval, eliminating the need for separate dedicated storage mechanisms and reducing overall system complexity while improving adaptability.
Data Source
AI summary
Disclosed in the present application are a short message service (SMS) ability updating method, device and apparatus. The method includes a mobility management function receives a triggering condition of an SMS function/a user data management function, and/or, the mobility management function determines that SMS over NAS ability update needs to be triggered; the mobility management function updates the SMS over NAS ability of a UE. By using the present application, when a mobility management function receives a triggering condition of an SMS function/a user data management function, and/or, the mobility management function determines that SMS over NAS ability update needs to be triggered, the mobility management function updates the SMS over NAS ability of the UE. The SMS over NAS ability update can be triggered by means of a network side, thereby preventing the UE from making an erroneous SMS transmission attempt.