Network Slice Alarm Association for Fault Analysis
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Solution Overview
Problem
In the context of 5G network slice technology, existing methods fail to accurately associate virtualized resource alarms with corresponding network slice instances, making it impossible to analyze the reason for faults in network slice instances.
Innovation Solution
The proposed solution involves a method where a first service entity sends a request to a second service entity to retrieve a virtualized resource alarm carrying identifier information of a VNF instance, allowing the second service entity to determine the relevant virtualized resource alarm and associate it with the corresponding network slice instance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a same NFI is shared by a plurality of NSIs to improve resource utilization, then resource efficiency is improved, but fault analysis capability deteriorates because virtualized resource alarms cannot be associated with specific network slice instances
Solution Approach 1:
The patent segments the alarm association mechanism by introducing a new association dimension: network slice instance level. Instead of associating virtualized resource alarms only with NFIs at the network function level, the patent enables segmentation of alarm associations down to the individual network slice instance level through multiple possible association methods (one-to-one, one-to-many, many-to-one mappings between alarms and slice instances), allowing precise fault analysis while maintaining shared NFI resources
Solution Approach 2:
The patent adds a new dimension to the alarm association hierarchy by introducing network slice instance as an intermediate layer between NFI and traditional alarm management. This dimensional expansion allows the system to track which specific network slice instances are affected by virtualized resource alarms, enabling fault analysis capability to be restored even when NFIs are shared across multiple slice instances
2Device complexity
If virtualized resource alarms are associated only with NFIs in the prior art, then system complexity is reduced, but fault analysis precision deteriorates because the specific affected network slice instance cannot be identified
Solution Approach 1:
The patent introduces network slice instance as an intermediary entity between the virtualized resource alarm and the affected network slices. This intermediary enables precise fault analysis by providing a mapping relationship that connects the alarm to specific network slice instances, while the implementation remains flexible with multiple association modes that balance precision requirements against system complexity
Data Source
AI summary
A method includes: sending, by a first service entity, a first request to a second service entity, where the first service entity is configured to manage a network slice instance, and the second service entity is configured to manage an alarm of a network function instance, where the first request includes identifier information of a VNF instance; the first request is used to request a virtualized resource alarm carrying the identifier information; and there is a correspondence between the VNF instance and a first network slice instance managed by the first service entity; and receiving, by the first service entity, a first response from the second service entity, where the first response carries the virtualized resource alarm.