5G Network Slice Policy Configuration for Service Continuity
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Solution Overview
Problem
In 5G network slicing, service interruptions occur when a target base station does not support the corresponding slice, affecting the quality of service (QoS) due to non-uniform slice service support across the network, based on tracking areas.
Innovation Solution
A method for processing slice services that involves determining and sending slice policy information to ensure slice configuration alignment between radio access and core networks, allowing for seamless service switching and fallback to alternative slices when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network slicing is implemented with tracking area-based slice support, then different services can be transmitted in different slices without interfering with each other, but service interruptions occur when target base stations do not support corresponding slices during service switching
Solution Approach 1:
The source base station determines and sends slice policy information to the target base station before service switching occurs. This preliminary action ensures that the target base station is prepared with the necessary slice configuration information in advance, preventing service interruptions during handover even when the target base station initially does not support the corresponding slice.
Solution Approach 2:
Slice policy information acts as an intermediary mechanism between the source and target base stations. This information carries slice configuration details that enable the target base station to support services that it would otherwise not support, mediating the compatibility issue between different base station slice capabilities.
2Reliability
If slice configuration is determined without dynamic policy information, then network operation is simpler, but service quality and continuity are affected during service switching
Solution Approach 1:
The base stations automatically determine and exchange slice policy information without requiring manual configuration or complex centralized management. The source base station autonomously determines the slice policy information and sends it to the target base station, enabling self-service slice configuration that maintains service quality while avoiding excessive management complexity.
Data Source
AI summary
A method for processing a slice service is provided. The method is applied to a first device and includes: receiving slice policy information for at least one of a service and a terminal; and determining a slice policy for the at least one of the service and terminal based on the slice policy information. The slice policy is used to determine a slice configuration of the first device for the at least one of the service and the terminal.