PCF Policy Control via NSACF Slice Status
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current network configurations fail to utilize network slice status information effectively, leading to inefficient resource management and inability to perform network slice admission control for groups of UEs and PDU sessions, resulting in resource wastage and suboptimal quality of service.
Innovation Solution
A network device, such as a Policy Control Function (PCF), is configured to subscribe to network slice status notifications from the Network Slice Admission Control Function (NSACF), allowing it to identify impacted UEs and PDU sessions and update policy rules to manage resource allocation and quality of service based on network slice status information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If network slice status information is not utilized for policy control decisions, then current network configurations can operate with simpler architecture, but resource management efficiency deteriorates and quality of service becomes suboptimal
Solution Approach 1:
The PCF subscribes to network slice status notifications from the NSACF, creating a feedback loop where real-time status information about UEs and PDU sessions in network slices is continuously provided to the PCF. This enables dynamic policy adjustments based on actual network conditions, improving resource management efficiency while maintaining manageable architecture through standardized notification mechanisms.
Solution Approach 2:
The network slice status notification mechanism serves multiple functions: it enables policy control decisions, supports charging control, facilitates resource allocation optimization, and allows quality of service adjustment. By making the status information universally applicable across these different control functions, the system achieves improved productivity without proportionally increasing complexity.
2Productivity
If network slice admission control is not performed for groups of UEs and PDU sessions, then network configuration remains simpler, but resource wastage increases and quality of service deteriorates
Solution Approach 1:
The NSACF performs preliminary monitoring and control of the quantity of registered UEs and established PDU sessions per network slice before admission decisions are made. By having this status information readily available through the notification mechanism, the PCF can make informed admission control decisions in advance, preventing resource wastage and ensuring quality of service without requiring complex real-time analysis mechanisms.
3Productivity
If policy rules are not dynamically updated based on network slice status, then network operation remains more stable, but resource allocation optimization is reduced
Solution Approach 1:
The policy control function dynamically updates policy rules based on real-time network slice status information received through notifications. This dynamic adjustment capability allows the system to optimize resource allocation in response to changing network conditions, such as varying quantities of UEs or PDU sessions, while maintaining stability through structured, rule-based update mechanisms rather than chaotic reconfiguration.
Data Source
AI summary
A network device of a network may generate a request for network slice status information associated with a plurality of UEs registered with the network, and may provide the request for the network slice status information to another network device of the network. The network device may receive, based on the request, the network slice status information from the other network device, and may determine a modified policy for the plurality of UEs based on the network slice status information. The network device may cause the modified policy to be implemented for the plurality of UEs.