VVDN
Xilinx
VIAVI
VVDN developed O-DU Fronthaul solution
Xilinx
FPGA based NIC card used for O-DU Fronthaul implementation
Third-party L1 stack to be integrated
with VVDN Fronthaul
VIAVI TM500 O-RU Tester used for End to End validation of the solution
VVDN, Xilinx, and VIAVI partnered together to develop an O-DU
solution.
The scenario demonstrates VVDN developing O-RAN O-DU Fronthaul solution on Xilinx based
FPGA NIC card. VVDN Fronthaul testing of O-DU sub-system (CUS-plane) is done by using VIAVI O-RU
emulator. A selection of tests demonstrates S-Plane PTP master validation and interoperability of the
O-RAN Fronthaul interface. Validated Control and User Plane messages are transmitted by the O-DU and
decoded correctly by the O-RU.
The tests successfully demonstrated the
interoperability/interworking of flexible Fronthaul for O-DU:
• Full bandwidth testing of CU plane
• Test and plot IQ data spectrum for different bandwidths
Demonstrated IEEE1588 PTP Master validation:
• CU plane validation with and without PTP sync
Measured Throughput Details:
• Fronthaul configuration : 273 PRB, Two Sections (140 + 133), 4 -
Layer
| Compression Bitwidth | Theoretical Throughput (in Gbps) | Hardware Throughput (in Gbps) |
|---|---|---|
| 8 | 5.870592 | 5.75 |
| 9 | 6.604416 | 6.5 |
| 10 | 7.33824 | 7.25 |
| 11 | 8.072064 | 8 |
| 12 | 8.805888 | 8.75 |
| 13 | 9.539712 | 9.5 |
| 14 | 10.273536 | 10.25 |
| 15 | 11.00736 | 11 |
| 16 | 11.741184 | 11.74 |
Future Plans:
• Fronthaul integration with the L1 stack
• Fronthaul for O-RU side
