System Approach
In a joint effort, NXP and R3 Solutions have developed a TSN-capable Wi-Fi system based on NXP’s standard 88W9098 Wi-Fi chipset. This enables Wi-Fi segments to be seamlessly integrated into wired TSN networks, using the same TAPRIO (Time-Aware Priority) shaper across both media. In particular, a novel hardware-assisted cross-synchronization mechanism has been developed that establishes a high-fidelity link between the Wi-Fi TSF and the Ethernet PHC, effectively extending gPTP across the wireless segment.
Architecture
EDGE X TSN Time Synchronization
To demonstrate the power of the new wireless TSN approach, an accordingly modified EDGE X is integrated in NXP's mobile robot demonstrator.
This special hardware is optimized to enable:
- Hybrid wired-wireless time synchronization,
- End-to-end IEEE 802.1Qbv time-aware scheduling for TSN, and
- 1μs P90 accuracy over the wireless network.
Performance Results
Results are shown for a high-priority stream (100 Hz) competing with maximum-bandwidth low-priority UDP traffic.
The TAPRIO scheduler, enabled by our precise synchronization, protects critical traffic completely.
Why is this important?
Industrial automation demands the determinism of wired TSN but requires the flexibility of wireless. Integrating them forces a compromise.
We achieve both without sacrificing performance.
Contact us!
If you want to learn more about Edge X based Wireless TSN networking, contact us.