Use case driven YANG modules for O-DU

Scope

The page will discuss and document the necessary yang modules to be supported by O-DU to ensure the end-to-end functionality of the D-Release use case "Closed loop". 

As O-RAN alliance does not provide solid yang models yet, other data models needs to be defined or selected.

Decisions

In SMO project call on 2021-03-04 it was decided to create a yang modules for O-RAN-SC DU with a minimum parameter set supporting the D-Release Closed loop use case.

The initial idea of a configuration for the O-DU NetConf client is rejected, because in D-Release there wont be a NetConf client implemented on O-DU.

The prototype yang models from B-Release wont be enhanced.

D-Release YANG model for O-DU

Please see attached hello-world yang for D-Release.

module: o-ran-sc-du-hello-world
  +--rw network-function
     +--rw du-to-ru-connection* [name]
        +--rw name      string
        +--ro status?   connection-status

  rpcs:
    +---x connect
    |  +---w input
    |  |  +---w remote-network-function    o-ru-reference
    |  +--ro output
    |     +--ro response-status    enumeration
    |     +--ro message?           string
    +---x disconnect
       +---w input
       |  +---w remote-network-function    o-ru-reference
       +--ro output
          +--ro response-status    enumeration
          +--ro message?           string