TSN Parameter Configuration in 5G PDU Session Control
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Solution Overview
Problem
Existing wireless communication systems, particularly in 5G networks, face challenges in efficiently integrating Time Sensitive Networking (TSN) parameters for establishing PDU sessions with access and mobility management functions, leading to suboptimal support for time-sensitive applications.
Innovation Solution
A method for a wireless device to receive TSN parameters from a TSN translator device and send a request to establish a PDU session to the access and mobility management function (AMF) with these parameters, enabling seamless integration and management of TSN bridges within the 5G system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If control plane based configuration is implemented for TSN over 5G, then network flexibility and service customization are improved, but control signaling overhead and configuration complexity increase
Solution Approach 1:
The configuration process is segmented into multiple phases: initial network setup, service-specific configuration, and dynamic parameter adjustment. The SMF separates TSN configuration from general PDU session management, allowing independent optimization of each function while reducing overall complexity.
Solution Approach 2:
The SMF acts as an intermediary between the UPF and TSN network elements, translating high-level service requirements into detailed configuration parameters. This mediator function abstracts the complexity from the control plane while maintaining precise control over TSN parameters through standardized interfaces.
2Productivity
If multiple network functions (AMF, SMF, UPF) are implemented with network slicing, then network resource management efficiency is improved, but system complexity and implementation difficulty increase
Solution Approach 1:
The 5G core network is segmented into distinct functional units (AMF for mobility management, SMF for session management, UPF for user plane) that can be independently deployed and scaled. Network slicing further segments resources logically across these functions, allowing efficient resource management while maintaining manageable system complexity through clear functional boundaries.
Solution Approach 2:
The SMF is designed with multi-functionality to handle both general PDU session management and TSN-specific configuration tasks. This universal function reduces the need for separate dedicated components, improving resource management efficiency while controlling system complexity through consolidated design.
3Speed
If TSN parameters are configured through PDU session establishment, then service deployment speed is improved, but configuration precision and QoS guarantee capability may be compromised
Solution Approach 1:
TSN configuration parameters are prepared and validated in advance during PDU session establishment, before actual data transmission begins. The SMF pre-configures time synchronization parameters, traffic shaping rules, and QoS policies, ensuring both rapid deployment and precise configuration by combining advance preparation with streamlined execution.
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AI summary
A method for a wireless device of a wireless communication system is described herein. In accordance with one embodiment, the method includes, receiving - by the wireless device from a time sensitive network (TSN) translator device - one or more TSN parameters; sending - by the wireless device to an access and mobility management function (AMF) - a non access stratum (NAS) message indicating a request to establish a PDU session comprising the one or more TSN parameters; and receiving - by the wireless device from the AMF - a message indicating acceptance of the PDU session.