Network Slice Restoration via Configuration Subtree Extraction
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Solution Overview
Problem
Current solutions for restoring a network slice to a previous configuration are complex and lack efficiency, particularly in scenarios where per-slice datastores are not available, and there is a need for precise management of resource allocation and validation to prevent unauthorized access.
Innovation Solution
A method is introduced that involves generating sets of subtrees from current and previous configurations to determine what needs to be added, removed, or replaced, and then restoring the network slice based on these subtrees, while validating the datastore and ensuring that only authorized resources are restored, using classification and allocation metadata to filter and transform notifications and operational data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a per-slice datastore is used to restore network slice configuration, then restoration accuracy is improved, but device complexity and resource overhead increase
Solution Approach 1:
The patent extracts only the necessary configuration subtrees related to the network slice from the global configuration datastore, rather than maintaining a complete per-slice datastore. This extraction approach achieves restoration accuracy by focusing on relevant configuration elements while avoiding the complexity of storing and managing entire slice configurations separately.
Solution Approach 2:
The configuration datastore is segmented into hierarchical subtrees, where only the specific subtree portions relevant to network slice restoration are identified and restored. This segmentation allows precise restoration of slice configurations without requiring complete separation of slice data, reducing overall system complexity.
2Manufacturing precision
If comprehensive configuration restoration is performed, then restoration completeness is improved, but restoration time and system resources increase
Solution Approach 1:
The system extracts and restores only the specific configuration subtrees that are relevant to the network slice, rather than performing comprehensive restoration of entire configuration databases. This extraction of necessary elements achieves restoration completeness for slice-specific configurations while significantly reducing restoration time and resource consumption.
Solution Approach 2:
The patent applies partial action by restoring only the necessary subtree portions required for network slice functionality rather than performing excessive comprehensive restoration. This partial restoration approach maintains slice operational completeness while optimizing time and resource efficiency.
3Reliability
If metadata filtering is applied to notifications, then information security is improved, but processing complexity increases
Solution Approach 1:
Classification metadata and allocation metadata are pre-configured to define which notifications should be filtered and transformed. This preliminary setup of filtering rules allows the system to automatically apply security-based filtering to notifications without complex real-time decision-making, improving information security while keeping processing straightforward.
Solution Approach 2:
Metadata acts as an intermediary layer between notification sources and slice managers. The classification metadata and allocation metadata serve as filtering mediators that automatically determine notification visibility and transformation requirements, simplifying the security enforcement process while maintaining robust information protection.
Data Source
AI summary
A method for restoring a network slice includes receiving a request to restore the network slice to a previous configuration, the previous configuration and a current configuration of the network slice being stored in a datastore, generating sets of subtrees from device-specific data in the current configuration and the previous configuration to be added, removed, or replaced in the current configuration, and restoring the network slice to the previous configuration based on the sets of subtrees.