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diff --git a/docs/docs_5g_a1_adaptor.rst b/docs/docs_5g_a1_adaptor.rst new file mode 100644 index 000000000..18e165e65 --- /dev/null +++ b/docs/docs_5g_a1_adaptor.rst @@ -0,0 +1,54 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 + International License. http://creativecommons.org/licenses/by/4.0 + +.. _docs_5g_a1_adaptor: + +5G - A1 Adaptor +--------------- + +Description +~~~~~~~~~~~ + +A1 is an O-RAN defined interface between Non-Real Time RIC (Ran Intelligent Controller) in the management platform (ONAP) and RAN network element called Near-Real Time RIC. +A1 interface is used to communicate policy choices, AI/ML model updates, and other RAN functions that are not included in the traditional network configuration. +O-RAN defines architecture of RT RIC and relevant interfaces. +O-RAN WG2 has released the first version of A1 specifications September 2019. +ONAP needed to implement a module serving a communication channel between other ONAP components and RT RIC for A1 interface. +ONAP community has a harmonization project with mobility standard and A1 adaptor has been proposed in the project (https://wiki.onap.org/display/DW/MOBILITY+STANDARDS+HARMONIZATION+WITH+ONAP). +A1 adaptor has been implemented as a component in CCSDK. All implementation details are explained here: https://wiki.onap.org/display/DW/A1+Adapter+in+ONAP + +How to Use +~~~~~~~~~~ + +Following steps describe a general procedure about how to use A1 adaptor. + +1. ONAP Frankfurt includes A1 adaptor. + +2. Edit A1 adaptor property file in sdnc container at dev-sdnc-x POD. (dev is an example of release name and x is replica number) + + a. A property file is located at /opt/onap/ccsdk/data/properties/a1-adapter-api-dg.properties. + + b. SSH into a rancher node (NFS/rancher). + + c. sudo su + + d. kubectl get pods -n onap -o wide | grep sdnc + + e. execute the following command to all sdnc PODs to update properties files. + + - kubectl exec -it dev-sdnc-x bash (x=0,1,2, depending on number of sdnc replicas in the setup) + + f. Once in the docker, edit the properties file. + + g. Make following configuration changes per setup + + - Update IP address and port number for Near-Real Time RIC as below + + - near-rt-ric-id=a.b.c.d:port + +A1 adaptor has been tested with A1 mediator as an example of Near-Real Time RIC. Detailed information can be found at its repo: https://gerrit.o-ran-sc.org/r/gitweb?p=ric-plt%2Fric-dep.git;a=shortlog;h=refs%2Fheads%2Fmaster. + +Test Status and Plans +~~~~~~~~~~~~~~~~~~~~~ + +For ONAP Frankfurt, A1 adaptor has not been involved in a full closed loop use case. A1 adaptor has gone through a unit test with A1 mediator in OSC as a underlying device. It has been tested for receiving A1 policy via DMaaP and publishing a response back to DMaaP as well as notification. More details are presented in https://wiki.onap.org/pages/viewpage.action?pageId=71837463. |