5G TSN Bridge Configuration Using DS-TT and NW-TT Translators
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Solution Overview
Problem
The increasing complexity and diversity of communication devices in 5G systems, including routers, switches, and bridges, pose challenges in managing network resources effectively, especially with the advent of new radio (NR) systems, leading to inefficiencies in data handling and bandwidth utilization.
Innovation Solution
Integration of a TSN bridge configuration within 5G systems, utilizing DS-TT and NW-TT translators for interoperation between TSN and 5G systems, enabling efficient management of Ethernet ports and QoS parameters through AF requests and PCF policies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If TSN bridge configuration is integrated into 5G systems with DS-TT and NW-TT translators, then time-sensitive data transfer reliability is improved, but network device complexity increases
Solution Approach 1:
The patent introduces DS-TT (Device-Side TSN Translator) and NW-TT (Network-Side TSN Translator) as intermediary devices that bridge TSN networks and 5G networks. These translators handle protocol conversion and configuration mapping between TSN QoS parameters and 5G QoS parameters, enabling time-sensitive networking without requiring complex modifications to existing 5G core network devices. The translators act as mediators that absorb the complexity of dual-system integration.
Solution Approach 2:
The TSN bridge configuration functionality is segmented into separate components: DS-TT located at the device side, NW-TT located at the network side, and configuration management through PCF and AF. This segmentation allows each component to handle specific tasks independently, reducing the complexity burden on any single network device while collectively achieving reliable time-sensitive data transfer.
2Adaptability or versatility
If multiple network devices (routers, switches, bridges) are added to support diverse communication devices, then network versatility is improved, but network management complexity increases
Solution Approach 1:
The patent implements universal TSN bridge configuration mechanisms that can handle multiple types of communication devices (UEs, routers, switches, bridges) through a unified framework. The PCF (Policy Control Function) and AF (Application Function) provide centralized configuration management that works across diverse device types, eliminating the need for device-specific management procedures and reducing overall network management complexity despite increased versatility.
Solution Approach 2:
The TSN translators (DS-TT and NW-TT) serve as universal intermediaries that interface with various network devices regardless of their specific types. These translators provide a standardized interface for QoS parameter mapping and configuration, allowing the network to support diverse communication devices without requiring each device type to be managed separately, thus reducing management complexity while maintaining versatility.
3Productivity
If TSN QoS parameters are aligned with 5G QoS profiles through configuration procedures, then data transfer efficiency is improved, but configuration and setup time increases
Solution Approach 1:
The patent implements preliminary configuration mechanisms where the PCF (Policy Control Function) pre-establishes QoS parameter mappings between TSN and 5G systems. Configuration profiles are prepared in advance, and when a time-sensitive service is activated, the pre-configured mappings are quickly applied through automated procedures involving AF and NW-TT, significantly reducing actual setup time while ensuring efficient data transfer.
Solution Approach 2:
The configuration system incorporates feedback mechanisms where the NW-TT reports configuration status and QoS parameter alignment to the PCF and AF. This feedback enables automated adjustment and validation of QoS mappings, reducing manual configuration time and ensuring that the alignment between TSN and 5G QoS parameters is achieved efficiently without excessive setup time.
Data Source
AI summary
A system to support time sensitive networking (TSN) in a 5G system is described. The TSN application function (AF) sends to a device-side translator a Port Management Information Container (PMIC) and port number that has a Stream Identification type value and Stream Identification controlling parameters that depend on the Stream Identification type value for per-stream policing and filtering in a distributed bridge. During establishment of the bridge, the network-side translator port numbers are provided to the TSN AF in a Bridge Management Information Container (BMIC). Any PDU session of the bridge is able to be selected for Ethernet port and Bridge management procedures between the network-side translator and the TSN AF.