Architecture for Montreal Release:
A1 Policy components (subset of 'Non-RealTime RIC'):
- A1 Policy Management Service (In ONAP CCSDK/SDNC)
- SDNC A1 Adapter (In ONAP CCSDK/SDNC)
- Near-RT RIC / A1 Simulator (in O-RAN Source Community (OSC)) (Wiki)
- A1 Policy Management GUI / NONRTRIC Dashboard (in O-RAN Source Community (OSC)) (Wiki)
Source code & Documentation
- The source code is available in: ONAP CCSDK (O-RAN) Gerrit repo ('montreal' branch)
- Support functions available in OSC repos: OSC A1-Simulator (Gerrit) & OSC NONRTRIC Control Panel (Gerrit)
- The Official Documentation can be found at https://docs.onap.org/projects/onap-ccsdk-oran/en/montreal/
- Additional Non-RealTime RIC functions are developed in the OSC NONRTRIC project - which reuses these A1 Policy components.
JIRA links
CCSDK-3909 - Getting issue details... STATUS
ONAP A1 Policy Management Service (ONAP CCSDK)
The Policy Management Service is a micro service which maintains a transient repository of:
- All A1 policies instances in the network. Each policy is targeted to a near-RT-RIC instance and is owned by a 'service' (R-APP or the NONRTRIC Dashboard).
- All near-RT-RICs in the network.
- All Policy types supported by each near-RT-RIC.
The service provides :
- Unified REST API for managing A1 Policies in all near-RT-RICs.
- Synchronized view of A1 Policy instances for each rApp/Client
- Synchronized view of A1 Policy instances in each near-RT-RIC
- Synchronized view of A1 Policy types supported by each near-RT-RIC
- Lookup service to find the near-RT-RIC to control resources in the RAN as defined in O1 (e.g. which near-RT-RIC should be accessed to control a certain CU or DU, which in turn controls a certain cell).
- Monitors all near-RT-RICs and maintains data consistency – e.g. recovery from near-RT-RIC restarts
- Support for different Southbound APIs to the near-RT-RICs (different versions of the A1-P and other similar APIs).
- HTTPS can be configured to use a supplied certificate/private key and to validate peers towards a list of trusted CAs/certs.
- HTTP proxy support for tunneling HTTP/HTTPS connections.
- Fine-grained access-control - with new optional callouts to an external auth function
The REST API can be found at
ONAP A1 Adapter (part of ONAP CCSDK/SDNC):
Optional mediation point for A1 interface termination in SMO/Non-RT RIC
- Implemented as OSGI Feature/Bundles
- A1 REST southbound
- NETCONF YANG Northbound
- RESTCONF > NETCONF adapter
- Mapping logic / Provider
- Can be included in an any SDNC/CCSDK persona
OSC A1 Policy Management GUI / NONRTRIC Dashboard
Graphical user interface. This tool is available in O-RAN SC and is not essential for the A1 Policies / Non-RT-RIC.
- View and Manage A1 policies in the RAN (near-RT-RICs)
- Interacts with the Policy Management Services NBI (REST API)
- Graphical A1 policy creation/editing is model-driven, based on policy type’s JSON schema
- Frontend: Angular framework
- Backend Java Springboot application
- Please refer to the OSC NONRTRIC Control Panel Documentation (Latest)
OSC Near-RT RIC Simulator / A1 Simulator:
A1 simulator used for testing purposes. This tool is available in O-RAN SC and is not essential for the A1 Policies / Non-RT-RIC.
- Used to create multiple stateful A1 providers (simulated near-RT-RICs)
- Implemented as a Java Springboot application
- Swagger-based northbound interface, so easy to change the A1 profile exposed
- Supports plugable type-specific behaviors
- Please refer to the OSC A1 Simulator Documentation (Latest)