R8 A1 Adapter and Policy Management Extension
- Michela Bevilacqua
- John Keeney (Ericsson EST)
Use Case Name
A1 Adapter and Policy Management Extension (R8 Honolulu) | @John Keeney @Michela Bevilacqua |
Use Case Overview & Description
O-RAN has defined A1 interface specification in the context of the management of 5G RAN elements to provide intent based policies for optimization of the RAN network performance. This requirement enhances the support for Managing and Mediating O-RAN A1 Policies in ONAP. This extends work contributed in Rel 6 - Frankfurt (REQ-38) and Rel 7 - Guilin (REQ-352). A1 Adapter functionality was introduced in Frankfurt. In Guilin The A1 adapter was improved and a A1 Policy Management Service was added.
Planned enhancements for Rel 8 include: support of new A1 interface version in alignment to O-RAN alliance, common logging/audit. improved CSIT and OOM alignment, easier configuration, an improved NBI, and improved security cert management.
Use Case Key Information
TOPIC | Information |
Requirements Proposal | Requirements S/C Proposal: A1 Adapter and Policy Management Extension (ORAN/ONAP/3GPP Harmonization) |
Project WIKI page | |
Prior Project "Base" Wiki | |
Meetings Register & Recordings | |
Requirements Ticket | |
Key Use Case Leads & Contacts | USE CASE LEAD: @John Keeney USE KEY CONTACTS: @Michela Bevilacqua |
CCSDK Requirement/Epic | JIRA Ticket for Epic for A1 Policy Management in Honolulu CCSDK-2991: A1 Adapter and A1 Policy Management Extension - Honolulu - CCSDKClosed |
ONAP Arch Committee Review | JIRA Ticket for Review in ArchCom ONAPARC-642: (Honolulu-R8) - Func - Extend ORAN A1 supportClosed Recording:  Slides:  |
Function/Integration | Demo of OSC NONRTRIC & ONAP A1 functions at LFN Developer & Testing Forum - Feb 2021 |
Integration Tests | JIRA Ticket for Epic for Integration Tests REQ-626: Extend ORAN A1 support - Honolulu - Integration testsDone |
BUSINESS DRIVER
Key Contacts : John Keeney, @Michela Bevilacqua
Executive Summary:
O-RAN has defined A1 interface specification in the context of the management of 5G RAN elements to provide intent based policies for optimization of the RAN network performance. This requirement enhances the support for Managing and Mediating O-RAN A1 Policies in ONAP. This extends work contributed in Rel 6 - Frankfurt (REQ-38) and Rel 7 - Guilin (REQ-352). A1 Adapter functionality was introduced in Frankfurt. In Guilin The A1 adapter was improved and a A1 Policy Management Service was added.
Planned enhancements for Rel 8 include: support of new A1 interface version in alignment to O-RAN alliance, common logging/audit. improved CSIT and OOM alignment, easier configuration, an improved NBI, and improved security cert management.
Business Impact: Continuing the convergence between ONAP and ORAN for A1 Policy interface to used by all service providers.
Business Markets: Enhanced A1 Policy capabilities, once developed, will be usable by any service provider deploying and using ONAP.
Funding/Financial Impacts: A1 interface provides a flexible way for the operator to manage wide area RAN network optimization, reducing capex investment needs.
Organization Mgmt, Sales Strategies: There is no additional organizational management or sales strategies for this use case outside of a service providers "normal" ONAP deployment and its attendant organizational resources from a service provider.
Development Status
PROJECT | PTL | User Story / Epic | Requirement |
A&AI | @William Reehil | N/A |
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AAF | @Jonathan Gathman | N/A |
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APPC | @Takamune Cho | N/A |
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CLAMP | @Gervais-Martial Ngueko | N/A |
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CC-SDK | @Dan Timoney | Extend existing A1 Adapter and A1 Policy Management functionality in CCSDK | |
DCAE | @Vijay Kumar | N/A |
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DMaaP | @Mandar Sawant | N/A |
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External API | @Adrian OSullivan | N/A |
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HOLMES | @Guangrong Fu | N/A |
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MODELING | @Hui Deng | N/A |
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Multi-VIM / Cloud | @Bin Yang | N/A |
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OOF | @krishna moorthy | N/A |
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OOM | @Sylvain Desbureaux | N/A |
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POLICY | @James Hahn | N/A |
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PORTAL | @Sunder Tattavarada | N/A |
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SDN-C | @Dan Timoney | Extend existing A1 Adapter and A1 Policy Management functionality in SDNC deployments |
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SDC | @ChrisC | N/A |
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SO | @Seshu Kumar Mudiganti | N/A |
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VID | @Ikram Ikramullah | N/A |
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VF-C | @Yuanhong Deng | N/A |
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VNFRQTS | @Steven wright | N/A |
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VNF-SDK | @victor gao | N/A |
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CDS | @Yuriy Malakov | N/A |
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List of PTLs: Approved Projects
*Each Requirement should be tracked by its own User Story in JIRA
USE CASE DIAGRAM
Use cases define how different users interact with a system under design.
Enhancements for Honolulu Release
Add support for O-RAN Alliance A1-AP v2.1 specification (A1 Policy only)
Improve alignment with OOM deployment & configuration options
Improve alignment with CSIT way of working for function tests
New REST interface for configuration
New A1 Policy Management NBI (REST & DMaaP)
Improved security cert management
Stretch: Investigate if A1 Policy manipulation can be incorporated into other use cases (e.g. Slicing, OOF) - TBC
Synchronize A1 Policy Information in RAN
A1 Policy Type / Instance Operations
A1 Policy Instance Status Operations
Other Impacts
Affected ONAP Functions:
SDNC / CCSDK only
Integration of bordering ONAP components:
TBC
Interfaces:
Northbound Interface
Add/Change CCSDK A1 Policy Management Service NBI for A1 Policy Management (REST & DMaaP)
The new version of the PMS REST API complies with the ONAP REST API and Zalando style guidelines and fixes some naming inconsistencies.
REST (New version)
DMaaP (New version)
Ref: CCSDK-3077
Configuration
File based, supports dynamic refresh - including K8s ConfigMap (existing)
CBS/Consul (existing)
REST (New)
Southbound Interfaces – See earlier section
OSC A1 v2.1 (Existing)
O-RAN A1 v1.1 (Existing)
O-RAN A1 v2.1 (New)
Usage outside ONAP:
Used in O-RAN-SC NONRTRIC Project (Downstream)
Southbound Interface: O-RAN A1 Interface + Information Model is specified and maintained by O-RAN Alliance
Modelling Impacts:
TBC
Other:
Update Documentation with A1 interface aspects
Update Integration & Existing Test requirements
Use Case Functional Definitions
Use Case Title | |
Actors (and System Components) | SDNC / CCSDK - A1 Adapter & A1 Policy Management Service |
Description | O-RAN has defined A1 interface specification in the context of the management of 5G RAN elements to provide intent based policies for optimization of the RAN network performance. This requirement enhances the support for Managing and Mediating O-RAN A1 Policies in ONAP. This extends work contributed in Rel 6 - Frankfurt (REQ-38) and Rel 7 - Guilin (REQ-352). A1 Adapter functionality was introduced in Frankfurt. In Guilin The A1 adapter was improved and a A1 Policy Management Service was added. Planned enhancements for Rel 8 include: support of new A1 interface version in alignment to O-RAN alliance, common logging/audit. improved CSIT and OOM alignment, easier configuration, an improved NBI, and improved security cert management. |
Points of Contact |
@John Keeney @Michela Bevilacqua
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Preconditions | N/A |
Triggers / Begins when | N/A |
Steps / Flows (success) |
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Post-conditions |
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Alternate / Exception Paths |
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Related Use Cases | TBC |
Assumptions | None |
Tools / References / Artifacts | See additional information on this page |
TESTING
Test use-cases:
Synchronize A1 Policy Information in RAN
A1 Policy Type / Instance Operations
A1 Policy Instance Status Operations
Current Status
None yet
End to End flow to be Tested
Currently being defined
Test Cases and Status
Currently being defined