Base Station TSN Clock Delivery via Wireless Scheduling
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Solution Overview
Problem
There is a need for accurate reference timing delivery mechanisms between Ethernet-based Time-Sensitive Networking (TSN) and cellular-based Time-Sensitive Communication (TSC) domains, particularly in 5G wireless networks, to support low-latency and deterministic communication requirements for applications like industrial automation and robotics control.
Innovation Solution
A base station equipped with both wired and wireless transceivers, along with a controller, receives TSN clock information from an Ethernet-based TSN domain and schedules its transmission to User Equipment (UE) via wireless communication, allowing for flexible scheduling based on factors like UE requests, clock information age, and network resource availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If TSN clock information is delivered from Ethernet-based TSN domain to cellular-based TSC domain, then timing synchronization accuracy is improved, but transmission delay and jitter increase due to domain conversion
Solution Approach 1:
The base station acts as an intermediary device between the Ethernet-based TSN domain and the cellular-based TSC domain. It receives TSN clock information from the wired TSN domain via the wired transceiver and schedules its transmission to UEs in the wireless TSC domain via the wireless transceiver, thereby mediating the domain conversion while maintaining timing synchronization accuracy
Solution Approach 2:
The base station schedules the transmission of TSN clock information in advance based on timing requirements. By performing preliminary scheduling of clock information delivery, the system can prepare and transmit timing-critical data before actual TSC operations begin, reducing transmission delay and jitter
2Measurement precision
If TSN clock information is transmitted frequently to ensure synchronization accuracy, then timing precision is improved, but network resource consumption increases
Solution Approach 1:
The base station schedules TSN clock information transmission periodically at optimized intervals. This periodic scheduling ensures that timing synchronization accuracy is maintained while avoiding excessive transmission frequency that would waste network resources. The scheduling mechanism balances the trade-off between synchronization precision and resource consumption
3Adaptability or versatility
If multiple TSN domains are connected to the same base station, then service versatility is improved, but scheduling complexity increases
Solution Approach 1:
The base station segments the scheduling of TSN clock information for different TSN domains separately. Each TSN domain's clock information is scheduled and managed independently through the controller, which reduces the overall scheduling complexity while allowing multiple TSN domains to be connected and served simultaneously
Data Source
AI summary
A base station of a telecommunication network is provided. The base station includes a wired transceiver, a wireless transceiver, and a controller. The wired transceiver provides wired communication with a first Time-Sensitive Networking (TSN) domain outside the telecommunication network. The wireless transceiver provides wireless Time-Sensitive Communication (TSC) with a User Equipment (UE). A controller is configured to receive first TSN clock information from the first TSN domain via the wired transceiver, and schedule a transmission of the first TSN clock information to the UE via the wireless transceiver.