R11 Ran-Sim Enhancements

A detailed overview of the R11 Kohn release enhancements for the SON Use Case was presented in the LFN DTF on Nov 18, 2022.

Please see: 2022-11 - ONAP: 5G SON Use Case enhancements for Kohn Release - LF Networking - LF Networking Confluence

Here are links to the slides and recordings:

Slides: https://wiki.lfnetworking.org/download/attachments/80281686/LFN_DTF_Nov18_ONAP_SON_R11.pdf?version=1&modificationDate=1668811840000&api=v2

Recording: https://wiki.lfnetworking.org/download/attachments/80281686/video1806089153.mp4?version=1&modificationDate=1668811891000&api=v2

For release R3 to R10, the RAN-Sim RAN Simulator provided an abstraction of network of O-CU and O-DU with a northbound interface aligning to O-RAN O1. As shown in Figure 1, RAN-Sim provides:

NF modules representing the CU/DU Network Functions (NF)
Netconf servers to terminate the O1 interface from SDN-R to the CU/DU
VES agents generating O1-aligned VES messages for PM kpi, FM fault notifiction, and CM update
RAN-Sim Controller with support for a Web GUI and an internal database of cells and configuration

Figure 1: Rel 10 RAN-Sim functional architecture ONAP Rel 10 with northbound O1 interface support (netconf config and PM/FM/CM VES) from CU/DU RAN NF modules.

Figure 2 shows the release R11 enhancements in RAN-Sim RAN Simulator which add:

A1 Termination hosting A1 interface to A1 Policy Management Service in SDN-R
ran-app abstraction of xApp hosted on Near-RT RIC
Websocket interface from ran-app to RANSim Controller to provide E2-like interaction from xApp to CU/DU.

More details are provided in : A1 Support in RanSim Simulator

Figure 2: Rel11 RAN-Sim functional architecture for ONAP Rel11 with (a) northbound O1 interface support (netconf config and PM/FM/CM VES) from CU/DU RAN NF modules, and (b) northbound A1 interface support from A1 Termination and ran-app abstraction of xApps hosted on Near-RT RIC controlling the CU/DU modules.