RAN–Core Network Analytics Sharing via SBI for End-to-End QoS
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Solution Overview
Problem
End-to-end Quality of Service (QoS) metrics in wireless networks are impacted by the performance of both Radio Access Networks (RANs) and core networks, especially when they are operated by separate entities and do not typically communicate with each other.
Innovation Solution
The implementation of intercommunication between RANs and core networks, allowing for the exchange of analytics, congestion, and event information, enables both networks to adjust their parameters to maintain optimal end-to-end QoS even when one network is experiencing performance degradations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RAN and core network operate independently without communication, then each network can be managed separately with simpler operational complexity, but end-to-end QoS metrics deteriorate when one network experiences performance issues
Solution Approach 1:
The patent introduces an intermediary communication mechanism between RAN and core network that enables them to share performance data and coordinate QoS management. This intermediary system allows independent networks to work together without requiring deep integration, resolving the contradiction by adding just enough complexity to enable collaboration while preserving operational independence.
2Reliability
If RAN and core network implement intercommunication to share analytics and performance data, then end-to-end QoS can be maintained through coordinated parameter adjustments, but system complexity increases
Solution Approach 1:
The patent implements a universal communication framework that handles multiple functions including analytics sharing, congestion information exchange, and coordinated parameter adjustment through a single intercommunication infrastructure. This multi-functional approach reduces overall system complexity compared to implementing separate dedicated systems for each function.
Solution Approach 2:
The system establishes feedback loops where RAN and core network continuously exchange performance data and adjust parameters based on received information. This feedback mechanism enables automatic QoS maintenance without requiring complex manual coordination, as the systems self-adjust based on real-time conditions reported by the other network.
3Adaptability or versatility
If RAN and core network exchange detailed analytics and congestion information, then coordinated parameter adjustment becomes possible to maintain QoS, but information processing complexity increases
Solution Approach 1:
The patent extracts only the essential performance metrics and congestion indicators needed for QoS coordination from the full set of available analytics data. By selecting and exchanging only the most critical parameters between RAN and core network, the system achieves effective coordination while minimizing information processing complexity.
Data Source
AI summary
A system described herein may register a particular radio access network (“RAN”)-based interface, such as a R1 interface, with a RAN, such as an Open-RAN (“O-RAN”). The system may further be associated with a particular Service-Based Interface (“SBI”) of a core network that includes a plurality of network functions (“NFs”), where each NF is associated with a respective SBI. The system may receive, via the particular SBI, a request for RAN information from one or more NFs of the core network, obtain the RAN information from the RAN via the particular interface, output the requested RAN information to the one or more NFs of the core network via the particular SBI. Associating the system with the SBI may be performed without modifying a Network Repository Function (“NRF”) of the core network.