5G Network Slice Delay Measurement and Optimization
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Solution Overview
Problem
5G networks face challenges in mobility robustness optimization due to increased complexity and packet delay issues, particularly in next-generation (NG) or new radio (NR) systems, which affect user experience and service reliability.
Innovation Solution
The implementation of network slice performance measurement generation techniques, including timestamp-based measurements for GTP packets, allows for the adjustment of network resources to reduce latency and improve connectivity by providing detailed metrics on packet delay across various interfaces in 5G networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network complexity increases to support more devices and applications in 5G systems, then device connectivity and service diversity improve, but packet delay and mobility robustness deteriorate
Solution Approach 1:
The patent segments the network into multiple slices, each optimized for specific services and devices. This segmentation allows different packet handling strategies for different network slices, reducing overall packet delay while maintaining support for diverse devices and applications.
Solution Approach 2:
The patent changes network parameters dynamically based on service requirements, device types, and network conditions. By adjusting parameters such as packet routing paths, buffer sizes, and priority levels across different network slices, the system reduces packet delay while maintaining high device connectivity.
2Adaptability or versatility
If network complexity increases to support more devices and applications in 5G systems, then device connectivity and service diversity improve, but mobility robustness deteriorates
Solution Approach 1:
The patent divides the network into mobility-optimized slices and service-optimized slices. Mobility management functions are isolated and enhanced in specific slices, improving mobility robustness while the overall network maintains high device connectivity through other slices.
Solution Approach 2:
The patent introduces intermediary mobility management entities that coordinate handovers and mobility events across different network slices. These intermediaries ensure consistent mobility handling despite network complexity, maintaining mobility robustness while supporting diverse devices.
3Measurement precision
If detailed performance measurements are implemented across all network interfaces, then network optimization capability improves, but measurement and detection complexity increases
Solution Approach 1:
The patent segments measurement collection into modular components at different network interfaces. Each interface implements standardized measurement hooks that collect packet delay metrics independently, reducing overall measurement complexity while maintaining high precision through aggregated data from multiple slices.
Solution Approach 2:
The patent implements universal measurement frameworks that can be deployed across all network interfaces and slices using the same methodology. This multi-functional approach standardizes measurement collection, reducing complexity while enabling precise packet delay measurement across diverse network conditions.
Data Source
AI summary
A method and system for generating performance measurements related to DL and UL packet delays through a NG-RAN are described. The NG-RAN receives GTP PDU monitoring packets from a UPF and, in response measures the DL delays of the packets to and UL delays from a UE. The NG-RAN determines the per 5QI and per S-NSSAI distribution of the DL and UL delays and sends the performance measurements to a service provider. The average DL and UL delays may also be provided to the service provider. The service provider is in the NG-RAN or a separate management system. For a network slice, service providers for different NG-RANs send the performance measurements to a network slice service provider, where the individual NG-RAN performance measurements are combined to provide both the average and distribution of the DL and UL delays in the network slice.