Network Slice SLA Violation Weighting for Wireless Reliability
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Solution Overview
Problem
Wireless networks face challenges in consistently meeting service level agreements (SLAs) due to their variable environment, leading to unreliable service delivery for critical applications like unmanned vehicles and robotic surgeries, which deters customers from using wireless communication links.
Innovation Solution
A network node controller manages network slices by determining weighted sums of SLA violations across coverage areas, assigning weights based on priority, and optimizing resource allocation to minimize violations, ensuring reliable service delivery even in variable conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless networks operate in variable environments with moving devices and changing conditions, then network flexibility and adaptability are improved, but service level agreement compliance becomes unreliable
Solution Approach 1:
The network is divided into multiple network slices, each independently managed and optimized for specific service requirements. This segmentation allows different slices to have dedicated resource allocation and SLA management, ensuring that critical services maintain reliable SLA compliance even when overall network conditions vary. Each slice can be independently adjusted without affecting others.
Solution Approach 2:
The system dynamically adjusts resource allocation and communication schedules based on real-time network conditions and SLA requirements. Weighted sums of SLA violations are calculated and used to modify resource grants adaptively, allowing the network to respond to changing environments while maintaining service level commitments for critical applications.
2Reliability
If network resources are allocated to ensure SLA compliance for all network slices, then service reliability is improved, but resource efficiency deteriorates due to over-provisioning
Solution Approach 1:
The system changes the weighting parameters assigned to different network slices based on their priority and SLA criticality. High-priority slices receive higher weights that increase their resource allocation when violations occur, while lower-priority slices receive reduced weights. This dynamic parameter adjustment ensures reliable service delivery for critical services without permanently over-provisioning resources for all slices.
Solution Approach 2:
Different resource allocation strategies and weight values are applied to different network slices based on their specific requirements and SLA terms. Instead of uniform resource distribution, each slice receives localized quality of service treatment tailored to its function, ensuring critical services get necessary resources while non-critical services use resources efficiently.
3Manufacturing precision
If strict SLAs are enforced for all network slices, then service quality is improved, but device complexity increases due to comprehensive monitoring and management
Solution Approach 1:
The network node controller serves as an intermediary that centralizes the complex tasks of SLA monitoring, violation calculation, and resource allocation management. Individual network nodes simply execute resource grants provided by the controller, which handles the sophisticated weighted sum calculations and schedule optimizations. This intermediary approach maintains high service quality without distributing complex management functions across all network elements.
Data Source
AI summary
A network node may obtain a function for determining a weighted sum of service level agreement (SLA) violations within a coverage area associated with the network node. The network node may obtain weight values corresponding to respective network slices of a plurality of network slices operating within the coverage area associated with the network node. The network node may provide, to one or more devices connected via the plurality of network slices, resource grants according to a communication schedule, wherein the communication schedule is determined to minimize the weighted sum of the SLA violations. The network node may determine values of the SLA violations for the plurality of network slices during a time period and provide, to a network node controller, the values of the SLA violations for the plurality of network slices.