Release-Notes
This document provides the release notes for I Release of O-DU-L2.
Version history
Date |
Ver. |
Author |
Comment |
2023-12-14 |
9.0.0 |
Radisys |
I release |
2023-05-15 |
8.0.0 |
Radisys |
H release |
2022-12-15 |
7.0.3 |
Radisys, HCL Technologies Ltd. |
G release |
2022-06-16 |
6.0.0 |
Radisys, HCL Technologies Ltd. |
F release |
2022-01-14 |
5.0.0 |
Radisys, HCL Technologies Ltd. |
e-release |
2021-09-06 |
4.0.0 |
Radisys, HCL Technologies Ltd. |
D Release |
2020-12-04 |
3.0.0 |
Radisys, HCL Technologies Ltd. |
Cherry Release |
2020-06-17 |
2.0.0 |
Radisys |
Bronze Release |
2019-12-29 |
1.0.0 |
Radisys |
Amber Release |
Summary
I- release
This release contains the following:
- Alignment to E2 interface “O-RAN.WG3.E2AP-R003-v03.00” and “O-RAN.WG3.E2SM-KPM-R003-v03.00” specifications
All Global Procedures
Near-RT RIC Functional Procedures
Supporting Radio resource utilization related KPIs
Alignment to latest “O-RAN WG8 AAD v09.00” Specification
- Multi UE (max=2) scheduling per TTI in scheduler
Supporting DL scheduling only
XML based input configuration for ODU-High
H- release
This release contains the following:
Multi-Scheduling algorithm framework design
Alignment to “O-RAN WG8 AAD v07.00” Specification
Mobility mode Support (Inter-CU handover)
Upgrade to E2AP v3.0 and implementation of E2 messages
E2 Setup failure
Reset Procedure
End-to-end integration support
Testing with TM500 UE simulator to detect broadcast message
G- release
This release contains the following:
Improvement of code coverage
Discontinuous reception (DRX)
Alignment of O-DU high with the latest AAD WG8 specification (above 80% complaint)
End-to-end integration support
WLS memory management update aligned with latest odu-low (FlexRAN 21.11 intel L1)
Upgrade to the latest FAPI Interface and vendor-specific messages
Successfully tested broadcast message reception at L1
F- release
This release contains the following:
HARQ framework support and scheduler enhancement to prioritize retransmission
Upgrade to E2AP version 2.0
Support for IDLE Mode Paging
Mobility mode Support (Intra-CU handover)
O1 Module
Alarm notification for cell down.
Added support for standard defined VES format in alarm notification and PM messages.
e-release
This release contains the following:
Support for multiple bearers per UE
Support for multiple UEs per cell. Maximum 3 UEs supported in this release.
Enhancement of scheduler for round robin scheduling of UEs
Enhancement of scheduler to allocate grid resources to UL/DL channels based on slice(RRM Policies), UE and logical channel configurations
Support for Network slicing
Measures the Slice performance and periodically reports the slice performance statistics to O1.
Adjusting/Improving Slice performance via Slice Reconfiguration with optimized resource quota from SMO.
O1 Module
Support for cell configuration over O1 interface.
Support for RRM policy configuration over O1 interface.
Support VES PM data stream for sending slice metrics parameters to SMO.
D
This release contains the following:
UL/DL Data transmission on FDD/Mu0/20MHz.
Support for static TDD at O-DU High on 100 MHz Bandwidth, numerology 1.
Support for Closed Loop automation use case at O-DU High.
O-DU low – O-DU high pairwise testing in Radio mode (Broadcast message successfully received at O-DU Low).
O1 Module
Re-structure O1 module to run as a thread in ODU-High.
CM Support - IP and Port configuration for DU, CU stub and RIC stub via Netconf interface.
VES PNF Registration.
Support for Closed Loop Automation use-case.
Maintenance release includes :
Memory handling optimization and fixes.
Improvement in logging.
K0, K1 and K2 configuration.
Fixes in proccessing of RACH Indication and RAR.
Cherry
This release contains the following:
Implementation of UE attach signalling procedure on single carrier. All message exchanges within O-DU High are in line with WG8 AAD spec.
Enhancements to F1-C interface as required for UE attach procedure.
Enhancements to FAPI interface towards O-DU Low as required for UE attach procedure.
Support for all short PRACH formats.
Integration of FAPI P5 messages with Intel’s O-DU Low in Timer mode.
Code support for alignment with latest FAPI interface files from Intel.
Implementation of O1 interface.
Partial implementation of Health Check use-case with get-Alarm list API.
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.
Amber
This release contains the following:
O-DU layer intilaizations
Implementation of F1-C interface
Exchange of F1 Setup Request, F1 Setup Response, GNB DU Config Update and GNB DU Config Update ACK between the ODU and CU STUB.
Release Data
I release
Project |
ODUHIGH |
Repo/commit-ID |
o-du/l2/ Iaeb1276534505c23ef29bdb61ea48bd050ca09a8 |
Release designation |
I release |
Release date |
2023-12-14 |
Purpose of the delivery |
I release |
H release
Project |
ODUHIGH |
Repo/commit-ID |
o-du/l2/ I790792e199edecd7932fb7dc89c167b231708a5f |
Release designation |
H release |
Release date |
2023-06-13 |
Purpose of the delivery |
H release |
G release
Project |
ODUHIGH |
Repo/commit-ID |
o-du/l2/ I18c6f314f9a927ae49db92e4f9b0e4a3113f3bdb |
Release designation |
G release |
Release date |
2022-12-05 |
Purpose of the delivery |
G release |
F release
Project |
ODUHIGH |
Repo/commit-ID |
o-du/l2/ Ice63cef7030a5c08820bcced7ea06467e2c8 820b |
Release designation |
F release |
Release date |
2022-06-16 |
Purpose of the delivery |
F release |
e-release
Project |
ODUHIGH |
Repo/commit-ID |
o-du/l2/ I4b894c652ef3a3584670a9f26de87c2b2b3b d8f2 |
Release designation |
e-release |
Release date |
2022-01-14 |
Purpose of the delivery |
e-release |
D
Project |
ODUHIGH |
Repo/commit-ID |
o-du/l2/ e8fdaea4192b41240b8c43f48adf92eed0c3 b99e |
Release designation |
D Release |
Release date |
2021-09-06 |
Purpose of the delivery |
D Release |
Cherry
Project |
ODUHIGH |
Repo/commit-ID |
o-du/l2/ fc0bcf28e944ae7ba2423ad3c9a5c794df2dc 4ff |
Release designation |
Cherry Release |
Release date |
2020-12-04 |
Purpose of the delivery |
Cherry Release |
Bronze
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 |
Amber
Project |
ODUHIGH |
Repo/commit-ID |
o-du/l2/ d349ae65e1495488772f87e5cfa1ae71d9eab 075 |
Release designation |
Amber Release |
Release date |
2019-12-29 |
Purpose of the delivery |
Amber Release |
Feature Additions
JIRA BACK-LOG:
I-release
JIRA REFERENCE |
SLOGAN |
Alignment to “O-RAN.WG3.E2AP-R003-v03.00” and “O-RAN.WG3.E2SM-KPM-R003-v03.00” |
|
Multi UE per slot scheduling |
|
Alignment to ORAN WG8 AAD v9.0 specification |
|
XML based input configuration for ODU-High |
H-release
JIRA REFERENCE |
SLOGAN |
Inter-CU Handover |
|
Alignment to ORAN WG8 AAD v7.0 specification and Enhancement for Multi-scheduling alogrithm framework |
|
E2 upgrade to v3.0 and enhancement |
|
Integration of ODU-High with L1 |
G-release
JIRA REFERENCE |
SLOGAN |
Improvement of code coverage |
|
Implementation of Discontinuous Reception(DRX) |
|
Alignment to latest ORAN WG8 AAD specification |
|
Integration of ODU-High with L1 |
F-release
JIRA REFERENCE |
SLOGAN |
Support for HARQ and scheduler enhancement to prioritize retransmission |
|
Support for E2AP version 2.0 |
|
Support for Inter-DU Handover |
|
Support for Idle Mode Paging |
|
O1 Enhancements |
e-release
JIRA REFERENCE |
SLOGAN |
Support for Multi bearers |
|
Support for Multi UE |
|
Network Slicing support |
|
Resource allocation in time domain changes to meet flexible k0, k1 and k2 values |
|
Support for cell configuration over O1 interface |
|
Optimization, scaling and rework |
D
JIRA REFERENCE |
SLOGAN |
Support for Mu1 |
|
Support for 100 MHz |
|
Support for TDD mode |
|
Integration with O-DU Low in Radio mode |
|
Integration with O-CU |
|
Support for E2E testing |
|
Closed Loop Automation use-case |
|
Netconf session for O1 interface for CM |
|
Resource allocation in time domain changes to meet flexible k0, k1 and k2 values |
Cherry
JIRA REFERENCE |
SLOGAN |
UE attach procedure with basic scheduling |
|
Support for all short PRACH formats |
|
Explore O1 interface |
|
Integration with O-DU Low |
|
UE UL Data path |
|
UE DL Data path |
|
Applying 64 QAM Modulation in DL |
|
Applying 16 QAM Modulation in UL |
|
Integration with VIAVI Software |
|
get-AlarmList implementation on O1 interface |
|
CM Support on O1 interface |
Previous Releases
JIRA REFERENCE |
SLOGAN |
F1-C enhancement |
|
F1-U implementation |
|
E2 implementation |
|
Cell broadcast procedure |
|
UE attach procedure till msg-4 |
|
FAPI interface implementation |
|
RLC layer interface enhancements |
Bug Corrections
JIRA TICKETS:
NA
Deliverables
Software Deliverables
This release contains O-DU High code, along with test code in the form 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
installation-guide.rst
user-guide.rst
api-docs.rst
developer-guide.rst
Known Limitations, Issues and Workarounds
System Limitations
Current code contains support only for below configuration:
[TDD] [Mu1] [100MHz]
[FDD] [Mu0] [ 20MHz]
Freuency Range = FR 1
DL/UL Modulation = QPSK
Current code is locally tested to support upto three UEs.
NR-MAC supports Round Robin scheduling currently, however the framework provides support to plug-in any other scheduling algorthim easily.
Cell broadcast is for SSB and SIB1 only.
FAPI files not in-line with SCF FAPI 222.10.02. O-DU High currently compatible with FAPI files provided by Intel.
Implementation of F1 reset is limited to intializing UE contexts.
E2 interface is limited to KPM service model.
On the F1-U interface, UE, RB and tunnel configurations are static.
Cell configuration is supported by CM on O1 interface. All other configurations are static.
O-DU High has not been integrated with O-CU.(Using Radisys commercial CU as a test fixture)
Netconf TLS connection is not supported
Current code supports two Network Slices, One Default and other one Dedicated Slice.
We have to manually download the 3GPP yang models and install.
- Currently, only two Radio resource utilization related KPIs are calculated.
DL Total PRB Usage.
UL Total PRB Usage.
Multi UE scheduling per TTI is supported up to 2 UEs as of now.
Currently, only DL supports multi-UE scheduling. UL supports single-UE scheduling per TTI
Known Issues
PDSCH DMRS must not be interleaved with PDSCH allocations.
PUSCH DMRS must not be interleaved with PUSCH allocations.
Frequency domain allocation in DCI is a bit map where:
As per spec : the most significant bit corresponds to the group of lowest frequency.
As per L1 : the least significant bit corresponds to the lowest frequency group.
Only Resource allocation type 1 (i.e RB allocation using Start RB and Number of RBs) is supported for PDSCH.
Only mapping type = 1 (i.e. Type A) supported for PDSCH.
L1 unable to process SIB1 with hardware accelerator enabled.
JIRA TICKETS:
NA
Workarounds
O-DU High uses FAPI interface files provided by Intel and therefore, not completely in-line with SCF FAPI 222.10.02.
References
ORAN-WG8.AAD.0-v09.00.00
O-RAN.WG5.C.1-v05.00
O-RAN.WG3.E2GAP-R003-v03.00
O-RAN.WG3.E2AP-R003-v03.00
O-RAN.WG3.E2SM-KPM-R003-v03.00
3GPP TS 28 552 V15.6.0
3GPP TS 38.473 v15.3
3GPP TS 38.211 v15.3
3GPP TS 38.212 v15.3
3GPP TS 38.213 v15.3
3GPP TS 38.214 v15.3
3GPP TS 38.321 v15.3
3GPP TS 38.331 v15.3
5G PHY FAPI Specification v1.0.5
3GPP TS 28.541 Specfication V16.6
O-RAN WG1.O1-Interface v04.00
O-RAN WG1.OAM-Architecture v04.00