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Amber release page for the O-RAN Software community          

Welcome to the Amber release page (press release) for the O-RAN Software community          

This page contains all the information specific to the Amber release and frozen code (code freeze = Nov-30-2019) and documentation. The main trunk will continue on to support future releases.

This release is the first release and is in partnership with the O-RAN Alliance. The specification and software are being worked at the same time and the software is considered pre-specification software.

The projects have limited capabilities which will increase over future releases.

See Requirements and Software Architecture under Committees and Projects for more details on current activites.

Initial release capabilities include contributions under the following projects:

  • Non-real-time RIC (A1 Interface) (NONRTRIC)
  • Near real-time RIC Platform (E2 Interface) (RICP)
  • Near Real-time RIC X-APPs (RICAPP)
  • OAM (O-1 Interface)
  • O-RAN Central Unit (OCU)
  • O-DU High
  • O-DU Low
  • Dashboard (OAM)
  • Simulators (SIM)
  • Infrastructure (INF)
  • Integration and Test (INT)
  • Documentation (DOC)

Near Real-Time RIC xApps (RICAPP)

Primary Goals: Support near-real-time radio resource management via development and deployment of a series of xApps that interact with one another and the external components via A1, O1, and E2 interfaces (O-CU/O-DU)

Scope: Planned xApps: (1) Admission Control; (2) Measurement Campaign; (3) UE Manager; (4) ML xApp; (5) KPI Monitor

Active participation from AT&T, Nokia, Samsung

PTL
Amber

14 Epics defined; 5 Completed; 8 in-progress; 0 Blocked; 1 Deferred to Rel B
5 xApps being worked for Amber:
Admission Control (AC)
Measurement Campaign
UE Manager
ML-based AC
KPI monitor
xApp interaction methods
Using RIC Message Router (RMR)
Using Shared Data Layer (SDL)
Planning for use of ML in xApps

Documentation and Project CoordinationWiki
Jira
Gerrit
Meetings
Project RelationsOAM
O-CU
O-DU

Near Real-Time RIC Platform (RICP)

Primary Goals: Support near-real-time radio resource management, managing O-CU’s and O-DU’s via E2 messages, receiving A1 intent and policy guidance messages from the non-RT RIC, O1 configuration requests, and emitting O1 measurement data to ONAP.
Scope: Platform Components: (1) xApp and Config Manager; (2) A1 xApp mediator; (3) Routing Manager; (4) Subscription Manager; (5) E2 Manager; (6) E2 Termination; (7) Redis RAN R-NIB; (8) Redis xApp DB2; (9) Resource Manager; (10) Logging and OpenTracing support; (11) Prometheus support; (12) VES Agent / VESPA; and (13) API Gateway

PTLThoralf Czichy  (Nokia)
Amber

36 Epics defined
Key Progress & Open Issues
E2: Implements WG3 General Aspects and Principles
Amber release with support for E2 Insert, report, control and subscription messages
A1: No alignment with WG as yet
O1: LCM via xApp manager providing REST APIs
RMR RIC-internal transport function
Integrated with Akraino REC Edge Stack

Documentation and Project CoordinationWiki
Jira
Gerrit
Meetings
Project RelationsOAM
O-CU
O-DU

Non Real Time RIC (NONRTRIC)

Primary Goals: Support non-real-time radio resource management, higher layer procedure optimization, policy optimization in RAN, and providing guidance, parameters, policies and AI/ML models to support the operation of near-RealTime RIC functions in the RAN to achieve higher-level non-real-time objectives.

Scope: (1) A1 controller (mediator, Endopoint); (2) Coordinate/Host A1 Policy Management Services; (3) Coordinate AI/ML models – in RAN (E2 nodes and near-RT RIC) and non-RT RIC; (4) Data Enrichment coordinator; and (5) rApp Host and SMO Application Coordinator.

PTL

John Keeney (Ericsson)

Amber

9 Epics, 10 user stories and 3 tasks defined (all remain open)
None were originally targeted for completion in Amber!

  • Initial A1 Adapter/Controller
    • OSGI bundled to integrate with ONAP CCSDK/SDNC
    • Implements a subset of the A1 Policy LCM functions based on a “pre-spec” version of A1 protocol
    • Prototype RESTCONF-based NBI for A1 mediation interface to allow messages to be sent up/down A1 interface
  • Dashboard extension to manage Policy Types and Policy Instances
    • Based on existing near-RTRIC “RIC Dashboard”
  • Initial Near-RealTime RIC A1 simulator/test-stub
    • Implements server-end of A1 (Policy) interface for test. demo & simulation purposes
Documentation and Project CoordinationWiki
JIRA
Gerrit
Meetings
Project RelationsOAM
O-CU
O-DU

O-RAN Distributed Unit High Home (O-DU High)

Primary Goals: The O-DU (High) project provides reference implementation according to the O-RAN WG8 documents. It provides the implementation of F1AP, RLC, MAC, Scheduler modules and API between them.

Scope: Develop software deliverable for the A-release as per SW requirements specifications, leveraging seed code of 5GNR RLC and MAC protocol functions and developing F1AP module, CU stub and L1 Stub.

PTL
Amber

6 Epics identified
5 in-progress
0 Blocked
1 Deferred to Rel B

O-DU-OAM-Agent – Work In Progress
Initial bring up of the system and layer configuration.
MAC-PHY (FAPI) Interface
Discussions with the O-DU Low team is in progress.
Test code development is WIP for initial PHY configuration message.
F1AP: Following messages between CU and DU are being developed.
F1 SETUP REQUEST
F1 SETUP RESPONSE
GNB-DU CONFIGURATION UPDATE
GNB-DU CONFIGURATION UPDATE ACKNOWLEDGE

Documentation and Project CoordinationWiki
Jira
Gerrit
Meetings (common meeting with O-CU, O-DU High, O-DU Low and Sim)
ASN 1 tool
Project RelationsNear-RT RIC Platform
Non-RT RIC
OAM
O-CU-CP
O-CU-UP
O-DU Low

O-DU (ODU-LOW)

Primary Goals: The O-RAN-SC-ODU LOW project provides reference implementation of ODU-LOW according to the O-RAN AAL specification (WG8) documents. The reference design will follow the open interface toward ODU HIGH, RRU and Accelerator, provide physical layer signal processing functionality according to 3GPP .

Scope: According to the ORAN-WG8.AAD specification, PHY layer functionality is realized as High-PHY in O-DU and Low-PHY in O-RU. Some of the PHY functionalities may be realized using hardware acceleration. O-DU Low project will focus on the High-PHY and fronthaul library modules that reside in O-DU. NR FAPI being standardized by Small Cells Forum (SCF) will be used for defining L1 and L2 interactions.

PTL

Zhimin Yuan (Intel)

Amber

4 Epics(2 Done, 2 To Do), 3 tasks (1 Done, 2 In Progress), 1 defer to release B

Documentation and Project Coordination

Wiki
Jira
Gerrit
Meetings (TBD)

Project Relations

ODU High
OCU
SIMULATION

Operations, Administration, and Maintenance (OAM)

Primary Goals: The O-RAN-SC-OAM project provides reference implementation according to the O-RAN OAM (WG1) documents. In addition we provide a common MnS-Consumer for development and module test purposes.  The assumption is that the projects for the Managed Functions can concentrate on the more important control and user-plane functionality.

ScopeAccording to the O-RAN-SC-OAM-Architecture document all ManagedElements containing one or more Managed Functions (near-real-time-RIC, O-CU-CP, O-CU-UP, O-DU and O-RU) implement and provide a logical O1-interface to all contained Managed Functions.  The O-RAN-OAM-interface specification defines a NetConf-Server for Configuration Management (CM) a http-client for Fault Managment (FM), Performance Management (PM) and other events

PTL

Martin Skorupski (Highstreet)

Amber

7 Epics(1 Done, 6 To Do), 11 stories (6 Done, 5 In Progress), 4 tasks (In Progress)

Documentation and Project Coordination

 wiki
 jira
gerrit
meetings

Project Relations

Non-RT RIC
SIM
Near-RT RIC Platform

O-RAN Simulators (SIM)

Primary Goals: The O-RAN Simulators projects are meant to provide simulators needed to stimulate or respond to messages generated by O-RAN elements being developed. They are more robust that a simple test stub in which they can provide a controlled injection of messages or responses to messages over O-RAN and 3GPP interfaces. Simulators eventually will also support a Virtual Test Head (VTH) API which allow them to be integrated into test suites, managed by the OTF capabilities in the Test and Integration projects, which can be applied to non open source systems in order to verify the elements compliance to standard interfaces.

Scope:  The project aims to provide simulation solutions to all the projects that have such a need.  The project can be split according to the type of interfaces it simulates:

  • A1
  • E1
  • E2
  • F1
  • FH
  • O1

The project structure is flexible and it can be changed according to the needs of the other projects.

PTL

Alex Stancu (Highstreet)

Amber

4 Epics defined (1 [Done], 3 not entered in JIRA, 1 [Backlog])

Documentation and Project Coordination

Wiki
Jira
Gerrit

Project Relations

Near-RT RIC Platform
OAM

Infrastructure (INF)

Primary Goals:  Provide the infrastructure to vO-CU and vO-DU, include the VM and Container solutions.  Enable the AAL (accelerator abstract layer) for the RAN application VNF/CNF.

Active participation from Windriver and Lenovo.

PTL
Xiaohua Zhang  (Windriver) 
Amber

4 Epics defined and in-progress; 1 Deferred to Rel B

  • [INF-A-F01] Akraino blueprint for RIC
  • [INF-A-F02] VNF/CNF Orchestration (Inspur)
  • [INF-A-F03] Acceleration Abstraction Layer (AAL)
  • [INF-A-F04] Real time platform to deploy the O-CU and O-DU
Documentation and Project CoordinationWiki
Jira
Gerrit
Meetings
Project RelationsOAM
O-CU
O-DU

Documentation (DOC)

Primary Goals: To create documentation for the O-RAN Software Community (OSC) component. platform. O-RAN repositories create a variety of content depending on the nature of the project.Status

PTL
Amber

Documentation homepage: http://docs.o-ran-sc.org 

Documentation and Project Coordination

Wiki
Jira
Gerrit

Meetings (TBD)
Project RelationsALL projects

Integration and Testing (INT)

Project Scope

Integration:

  • Integrating software deliverables by O-RAN software projects (INF, O-DU, O-CU, RICPLT, RICAPP, NONRTRIC, OAM, and SIM) into full O-RAN system with coherent deployment tooling and platform technologies;
  • Completing system level release objectives (e.g. demos, end-to-end stories) identified by O-RAN Alliance TIGF and O-RAN SC RSAC.

Testing:

  • Developing software testing tools, strategies, and flows for controlling quality and integrity of the O-RAN SC software deliverables;
  • Conducting integrated and system level testing for gating functionalities and quality of O-RAN SC software releases

CICD:

  • Leveraging Linux Foundation tool chain, incorporating automated work flows and processes into O-RAN SC software development, integration, deployment, releasing, and quality control.
PTL
Amber
Documentation and Project Coordination
Project RelationsAll Projects
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