Release-Notes

This document provides the release notes for Bronze Release of O-DU-L2.

Version history

Date Ver. Author Comment
2019-10-29 0.1.0 Radisys Amber Release
2020-06-17 0.2.0 Radisys Bronze Release

Summary

Bronze

This release contains the following: - Enhancements to F1-C interface for UE attach procedure.

  • Implementation of F1-U interface.
  • Implementation of E2 interface.
  • Support for traffic steering usecase.
  • Support for single carrier.
  • Implementation of basic scheduler.
  • Implementation of Cell broadcast procedure.
  • Implementation of UE procedure till msg-4 for single UE. Complete testing of these messages is in progress.
  • Implementation of FAPI interface towards O-DU Low using WLS.
  • Partial implementation of RLC layer interfaces towards upper and lower layers conforming to AAD spec.

Release Data

Project ODUHIGH
Repo/commit-ID o-du/l2/ 27844f9c01c08472b86b1a75adaed0e450a88 907
Release designation Bronze Release
Release date 2020-06-17
Purpose of the delivery Bronze Release

Feature Additions

JIRA BACK-LOG:

JIRA REFERENCE SLOGAN
https://jira.o-ran-sc.org/browse/ODUHIGH-1 F1-C enhancement
https://jira.o-ran-sc.org/browse/ODUHIGH-5 F1-U implementation
https://jira.o-ran-sc.org/browse/ODUHIGH-11 E2 implementation
https://jira.o-ran-sc.org/browse/ODUHIGH-9 Cell broadcast procedure
https://jira.o-ran-sc.org/browse/ODUHIGH-10 UE attach procedure till msg-4
https://jira.o-ran-sc.org/browse/ODUHIGH-8 FAPI interface implementation
https://jira.o-ran-sc.org/browse/ODUHIGH-27 RLC layer interface enhancements

Bug Corrections

JIRA TICKETS:

NA

Deliverables

Software Deliverables

This release contains O-DU code, along with test code as part of CU stub, RIC stub and phy stub. Instructions to build and execute ODU, CU and RIC stub binaries are also present. All of the above can be found in the o-du/l2 repo.

Documentation Deliverables

This release contains - README with instruction to build and execute binaries.

  • overview.rst
  • release-notes.rst

Known Limitations, Issues and Workarounds

System Limitations

  • Current code contains support for below configuration:

    Duplex mode = FDD

    Freuency Range = FR 1

    numerology = 0

    bandwidth = 20 MHz

    DL/UL Modulation = QPSK

    single HARQ transmission

  • Support for single UE.

  • Cell broadcast is for SSB and SIB1 only.

  • This release implements a basic scheduler with fixed scheduling.

  • E2 interface is limited to Traffic Steering Usecase.

  • Forming of RIC event trigger definition, RIC indication header and RIC indication message is unclear in the E2AP draft spec versions. Therefore, implementation does not contain accurate values. Contents of RIC indication message are mocked and triggered just once.

  • On the F1-U interface, UE, RB and tunnel configurations are static.

  • System runs on preconfigured values due to absence of O1 interface.

  • O-DU High has not been integrated with O-DU Low and O-CU.

Known Issues

None

JIRA TICKETS:

NA

References

  1. ORAN-WG8.AAD.0-v02.05.00
  2. ORAN WG3.E2AP v01.00
  3. ORAN WG3.E2SM v01.00
  4. 3GPP 38.473-f60 v15.3
  5. 3GPP TS 38.211 v15.3
  6. 3GPP TS 38.212 v15.3
  7. 3GPP TS 38.213 v15.3
  8. 3GPP TS 38.214 v15.3
  9. 3GPP TS 38.321 v15.3
  10. 3GPP TS 38.331 v15.3
  11. 5G PHY FAPI Specification v1.0.5