Aerial Subscription Update Signaling for UAS Service Registration
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Solution Overview
Problem
Existing 3GPP systems do not explicitly specify how to inform a user equipment apparatus of updates in aerial subscriptions for uncrewed aerial system services, leading to inefficiencies and resource wastage due to trial-and-error registration attempts by the UE.
Innovation Solution
Implement a method where a network entity determines changes in subscription information and transmits a Service-Level-AA subscription indication to the device, prompting the UE to initiate a mobility registration update procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the network does not explicitly inform the UE of subscription updates, then the system maintains simplicity and avoids additional signaling overhead, but the UE performs trial-and-error registration attempts causing network resource wastage
Solution Approach 1:
The network proactively informs the UE of subscription updates before the UE needs to access aerial services. The AMF sends a configuration update message to the UE when subscription information changes, enabling the UE to prepare for service access in advance and avoid unnecessary trial-and-error registration attempts.
Solution Approach 2:
The system implements a feedback mechanism where the AMF monitors subscription information changes and provides updates to the UE. This closed-loop feedback ensures the UE has current subscription information, allowing it to make informed decisions about service access and reducing wasteful registration attempts.
2Productivity
If the network sends frequent subscription update notifications, then the UE can access services efficiently, but the signaling overhead and network entity processing load increase
Solution Approach 1:
Instead of continuous monitoring and notification, the system uses event-triggered periodic action. The AMF sends configuration update messages only when subscription information actually changes, rather than continuously or frequently. This reduces signaling overhead while ensuring the UE receives timely updates when needed.
Solution Approach 2:
The patent extracts and transmits only the specific subscription update information that has changed, rather than sending complete subscription data or frequent status checks. This selective information transmission reduces the size and frequency of signaling messages, lowering processing complexity while maintaining service access efficiency.
3Adaptability or versatility
If the UE performs trial-and-error registration attempts, then it can discover available services, but it causes network resource wastage and increases access time
Solution Approach 1:
The network provides subscription information updates to the UE in advance, enabling the UE to know which aerial services it is authorized to access before attempting registration. This preliminary information provision eliminates the need for trial-and-error discovery and allows direct service access.
Solution Approach 2:
The AMF acts as an intermediary that manages subscription information and communicates it to the UE. This intermediary provides the UE with authoritative information about available services, replacing the trial-and-error discovery mechanism with informed direct access.
Data Source
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AI summary
A method performed by a first network entity is provided, the method comprising determining that there has been a change to subscription information of a device such that the device is allowed to use an aerial service. The method further comprises transmitting, to the device, a message comprising an indication that the device's changed subscription information allows the device to use the aerial service.