5G DetNet Node Configuration for QoS Flow Mapping
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Solution Overview
Problem
The integration of 5G systems with Time Sensitive Networking (TSN) for high-reliability and low-latency services requires support for deterministic networking (DetNet) to overcome limitations of short-range TSN and expand time-sensitive communication services beyond Ethernet environments.
Innovation Solution
A method and apparatus are provided to configure a DetNet node in a mobile communication system by integrating a DetNet application function (AF) and a TSN translator, which includes a processor and memory to receive configuration information from a DetNet controller, map DetNet flows to quality of service (QoS) flows, and manage connectivity, enabling the 5G system to operate as a DetNet node.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 5G system integrates with TSN for high-reliability and low-latency services, then service reliability and latency performance are improved, but system complexity increases
Solution Approach 1:
The patent introduces a DetNet application function (AF) as an intermediary component that bridges the DetNet controller and the mobile communication system elements (UPF, DS-TT, NW-TT). This mediator manages the complexity by centralizing the configuration information distribution and coordination, allowing the 5G system to provide high-reliability DetNet services without each component needing direct complex interactions with the DetNet controller
Solution Approach 2:
The patent segments the DetNet functionality into distinct modular components: DetNet controller (external), DetNet application function (in 5G core), and DetNet nodes (UPF, DS-TT, NW-TT). This segmentation allows each component to have specialized, simplified functions while collectively providing high-reliability services, reducing overall system complexity through functional decomposition
2Adaptability or versatility
If DetNet configuration information is distributed to multiple nodes (UPF, DS-TT, NW-TT), then deterministic networking capability is improved, but configuration management complexity increases
Solution Approach 1:
The DetNet application function performs preliminary actions by receiving configuration information from the DetNet controller and proactively distributing it to the appropriate DetNet nodes (UPF, DS-TT, NW-TT) before deterministic networking operations begin. This advance configuration distribution simplifies runtime management and enables multi-node DetNet capability without complex real-time coordination
Solution Approach 2:
The DetNet application function serves multiple functions: it acts as a configuration receiver from the DetNet controller, a distributor to multiple DetNet nodes, and a coordinator for mapping DetNet flows to QoS flows. This multi-functionality consolidates configuration management complexity into a single universal component rather than requiring each node to independently manage configuration
3Productivity
If DetNet flows are mapped to QoS flows in mobile communication system, then traffic processing efficiency is improved, but mapping complexity increases
Solution Approach 1:
The DetNet application function serves as a mediator that translates between DetNet flow specifications and 5G QoS flow parameters. It receives DetNet flow information from the DetNet controller and automatically maps it to appropriate QoS flows, shielding the complexity of mapping logic from the actual traffic processing nodes and improving overall traffic processing efficiency
Data Source
AI summary
A method and apparatus for processing DetNet traffic through the steps of receiving configuration information for configuring a DetNet node from a DetNet controller of a DetNet system and configuring a UPF, a DS-TT, and/or a NW-TT in a mobile communication system as the DetNet node are provided.