1- Brief Project Overview (brief as it should be known)
SON (Self-Organizing Networks) functionality is an essential part of existing 4G mobility networks, and will be even more critical for 5G. SON enables automation to improve network performance and efficiency, improve user experience, and reduce operational expenses and complexity. The objective of the OOF-SON (new name for OOF-PCI) use case is to develop an ONAP-based SON platform using the ONAP Optimization Framework (OOF). We have taken a phased approach since SON is complex, and SON for 5G is still evolving.
We started with the Physical Cell Identity (PCI) optimization SON use case in Casablanca, then added some centralized Automated Neighbor Relations (ANR) aspects in Dublin. Subsequently, adaptive SON functionality was added in Frankfurt release and Control Loop Co-ordination in the context of SON use cases was implemented. ML-based SON functional capability was introduced in Guilin release (wherein the ML model was trained offline). In Guilin, preparatory steps for alignment with O-RAN (CM-Notify, yang models) were taken. In Honolulu, CPS will be used to store all RAN data relevant for SON, and the intention is to go towards new yang models (O-RAN if available, else based on 3GPP TS 28.541 NRM). We also intend to do the ground work for SON-coordination, and as a stretch goal, take up enhancements in Control Loop Co-ordination.
2- New component capabilities for
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Honolulu, i.e. the functional enhancements, if applicable
- CPS
- Support of SON models and required interfaces
- Mapper service for mapping DB queries from OOF, SON-Handler MS and SDN-C to Xpath queries
- CCSDK/SDN-C
- Support of new yang models
- SON-Handler MS (DCAE)
3- New or modified interfaces
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