O-RAN Distributed Unit Low Layers (ODULOW) | |
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PTL | |
Summary | Focus on L1 functional blocks development according to WGs specification. |
Project | o-du, o-du/l2, o-du/phy, o-du/sim |
Weekly Meetings | TBD, anyone is interested in O-DU Low project, would like to get more information, would like to know how to participant, please no hesitate to contact zhimin.yuan@intel or raise any questions through this wiki page. |
Below link will help you have a quick explore
View current code contribution through web:
https://gerrit.o-ran-sc.org/r/gitweb?p=o-du/phy.git;a=tree
Explore the Documentation:
https://docs.o-ran-sc.org/en/latest/projects.html#o-ran-distributed-unit-low-layers-odulow
Current L1 functional development mainly focus on the open interface development, three interfaces will be involved to interact with L1 as below:
For amber release, O-RAN FH library was contributed by Intel as seed code, BBDev API was already open source in DPDK community, please find detail API information in http://doc.dpdk.org/api/rte__bbdev_8h.html, FAPI API is under development.
O-RAN FH Lib is developed according to the O-RAN WG4 specification. It performs communication between the O-DU and RU and consists of multiple HW and SW components. Logical representation of HW and SW components is shown as below diagram:
From the hardware perspective, two networking ports are used to communicate to the Front Haul and Back (Mid) Haul network as well as to receive PTP synchronization. The system timer is used to provide “sense” of time to the gNB application.
From Software perspective the following components are used:
Now it's mainly ad-hoc meeting, record as below:
date: | Mar.16 |
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Attendees: | Intel: Zhimin NTUST: Ray, Prof. Chung-An Shen, Prof. Chin-Ya Huang |
Minutes: | Action Items: - Zhimin provide - Share the figure for testing architecture - A list of job items to be done for DPDK xRAN - Provide O-RAN FH architecture document for Prof. Shen for reference. Ray's team may help to convert it to RST format - Provide the model number for O-RU simulator - Prof. Shen, check the available resource and determine the job - Ray: - AAEON can only provide one server for O-CU+O-DU. - Write a mail to Viavi for testing equipment |
date: | Mar.8 |
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Attendees: | Intel: Zhimin NTUST: Ray, Prof. AAeon: SamChen; FredyHsu; EyckNi; |
Minutes: | Action Items:
- Model number of FPGA card such that Ray can invite the company to join this project - A list of job items for DPDK xRAN. Ray can pass the information to his colleague, Prof. Shen, for evaluation 2. Sam has to check the supporting of NIC (and confirm it with Zhimin) and IEEE 1588 3. Ray's team will figure out how to reuse the API document generated by Doxygen and convert it to RST format |