5GC Event Subscription Update Mechanism
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Solution Overview
Problem
The Nudm_EventExposure Service in 5GC networks lacks the ability to update event subscriptions, preventing changes to monitoring events and reporting options, which hinders flexible event monitoring and reporting configurations.
Innovation Solution
Introducing an update mechanism for event subscriptions that allows adding, removing, or updating monitoring events and reporting options using HTTP PATCH or PUT requests, with specific HTTP status codes indicating success, failure, or forbidden operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the Nudm_EventExposure Service provides only Subscribe and Unsubscribe operations, then the service structure remains simple, but the ability to update event subscriptions is lost
Solution Approach 1:
The patent introduces a new Update service operation that enables modification of event subscriptions, allowing the same service interface to handle creation, modification, and deletion of subscriptions through a unified set of operations (Subscribe, Update, Unsubscribe), thereby improving adaptability without significantly increasing complexity
Solution Approach 2:
The Update operation allows dynamic modification of subscription parameters such as monitoring events, reporting options, and expiry time, enabling the service to adapt to changing requirements without requiring complete resubscription, thus enhancing flexibility while maintaining operational simplicity
2Adaptability or versatility
If event subscription parameters are fixed after creation, then the service operation is simple, but the flexibility to modify monitoring events and reporting options is blocked
Solution Approach 1:
The Update operation enables dynamic modification of subscription parameters including adding/removing monitoring events, updating reporting options, and changing expiry time, allowing flexible adaptation to changing monitoring requirements while maintaining a straightforward update process through a single service operation
Solution Approach 2:
The service allows preliminary configuration of subscription parameters during creation, then enables subsequent modifications through the Update operation, providing both initial setup simplicity and ongoing flexibility without requiring complete resubscription
Data Source
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AI summary
Embodiments of the present disclosure provide methods and apparatus for subscription update. A method may comprise receiving a first request for updating an event subscription to one or more monitoring events from a second network function node. The method may further comprise sending a first response including an updating result to the second network function node.