Network Slice Selection via Access Stratum Feedback
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Solution Overview
Problem
Current network slice selection mechanisms in communication systems do not consider actual environmental conditions, leading to potential access issues and poor communication quality when the expected slice is not supported by the accessed cell, resulting in suboptimal service delivery.
Innovation Solution
The method involves determining and sending related information about slice support, including identifiers, signal quality, and access permissions, from terminals to the non-access stratum, allowing for informed slice selection and ensuring better communication by prioritizing cells with optimal conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If terminals select slices based on non-access stratum policy without considering cell support conditions, then slice selection simplicity is maintained, but access reliability deteriorates when expected slice is not supported
Solution Approach 1:
The terminal performs preliminary actions by determining which slices are supported by the cell before attempting access. The access stratum obtains slice support information from the cell and provides it to the non-access stratum in advance, enabling the terminal to adjust its slice selection policy based on actual cell capabilities rather than attempting access and failing later
Solution Approach 2:
The system implements feedback by having the access stratum continuously obtain slice support information from the cell and report it to the non-access stratum. This feedback loop enables the terminal to dynamically adjust its slice selection based on real-time cell support conditions, improving access reliability while maintaining operational simplicity
2Speed
If terminals access cells without verifying slice support, then access speed is maintained, but communication quality deteriorates due to suboptimal service delivery
Solution Approach 1:
The terminal performs preliminary verification of slice support by having the access stratum obtain slice support information from the cell before the terminal attempts access. This preliminary check ensures that the terminal only selects cells that actually support the required slices, maintaining access speed while guaranteeing communication quality
Solution Approach 2:
The system dynamically adapts slice selection based on real-time cell support conditions. The access stratum continuously monitors which slices are supported by available cells and adjusts the terminal's slice selection policy accordingly, ensuring that the terminal accesses cells with optimal conditions for the required service
Data Source
AI summary
An information sending method includes: determining related information of a slice supported by a cell; and sending the related information to a non-access stratum by means of an access stratum.