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changes.mady.by.user Martin Skorupski

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changes.mady.by.user Matti Hiltunen

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Near-Real-time RIC X-APPs (RICAPP)

Primary Goals: Expand the community working on open source xApps for O-RAN SC. Enhance the set of open source xApps in support of the R-SAC use cases (traffic steering, health check, life cycle managementnetwork slicing) as well new use cases. Update and enhance existing xApps to take advantage of the new features in xApp SDK (implemented by the xApp frameworks in C++, go, and python).

E release highlights plan (79-721-21):

  • New xApps: RC (RAN Control) by Mavenir - implements subset of E2 SM RC
  • Improved xApps:
    • LP (Load Prediction) by ChinaMobile: Include trained ML model, will populate predictions in inFlux DB
    • AD (Anomaly Detection) by HCL: Will identify a new anomaly type (area anomaly), use geo-location as a feature.
    • QP (QoE Predictor) by HCL: Include prediction for current serving cell, incorporate predicted load as a feature, provide sequence of predictions.
    • TS (Traffic Steering) by UTFPR (University, Parana, Brazil): Call RC xApp to trigger UE handover, improvements in traffic steering logic.
    • Bouncer by HCL: Increase performance and functional testing capabilities; continue identifying RIC platform bottlenecks.
    • HW (HelloWorld) demo xApps in C++, go and python by AT&T and Samsung: Add usage of more platform features, update usage of platform features that are evolving.
  • Integration of AD, QP, TS, LP, RC, and KPIMON with Viavi simulator.
  • Extensive performance benchmarking of the RIC platform using Bouncer and E2 Simulator (HCL)
  • Design for xApps to support network slicing use case
  • Image list: can be found here.
  • Instructions for testing the xApps: can be found here....

PTL: Matti Hiltunen

Jira: Count of Epics, User Stories, Tasks, and Issues:  165 issues

Status (59-2521-21): 

E Release status

  • New xApps:
  • Improved xApps:
  • RC: Committers identified, design agreed, repo requested
  • LP: Trained ML-model added to the xApp
  • AD: Work on new anomaly type in progress
  • HW: New functionality added to HW-go and HW-python.
  • Bouncer: Bottleneck with E2 Subscriptions identified in RIC platform.
  • Discussions on network slicing use case with HCL, Viavi, UTFPR.

E release source code, container images and deployment instructions

Will be provided when E Release is ready

E release source code, container images and deployment instructions

Each repository has a branch named "dawn" that can be accessed using git. For example, the source code for the AD xApp can be retrieved using  "git clone --branch dawn "https://gerrit.o-ran-sc.org/r/ric-app/ad". The other xApps in the D release can be found at ric-app/qp, ric-app/ts, ric-app/lp, ric-app/hw, ric-app/hw-go, ric-app/hw-python, ric-app/mc, ric-app/bouncer, and scp/ric-app/kpimon. Note that the other ric-app repos are obsolete.

Note that this branch is in maintenance and all new development is done in branch "master".

In order to deploy the D release xApps,  you can re-use the pre-created container images as defined here and the instructions on testing the xApps can be found here.


Near-Real-time RAN Intelligent Controller Platform (E2 Interface) (RICPLT)

Mission: E2 updates with first E2APv1.1 support and improvements in E2 subscription handling. A1 reimplementation

Original primary goals: Update to E2APv1.1 (E2 Node configuration transfer in E2 Setup and E2 Configuration Update (RIC-638, even if likely changing again in E2APv2.0) and E2SM OID support in internal E2SM function query interfaces (RIC-640)) // RIC-809 Subscription manager to delete subscriptions in case of E2 disconnect (incl. Xapp changes) // RIC-793 Prevent A1 Job ID conflicts from multiple RICs using the same A1 producer (SMO) // RIC-647 Reimplement A1 mediator in golang to avoid A1 being the only python container in RIC platform // RIC-709 E2 stats exposing individual counters instead of groups // RIC-714 support for DMS REST interface in addition to DMS CLI // RIC-113 DB: SDL CLI for debugging and testing // RIC-110 FindKeys/GetAllKeys SDL API to support glob-style patterns // 34 Epics planned: link and 30 items as stretch goals: link

Achieved E release highlights = high-level release notes (TODO) below (note that the release image list is here (once releases): TODO)

TODO once released

PTL: Thoralf Czichy

Status 2021-09-15: we are working on implementing the planned development items

E release source code, container images and deployment instructions

We again plan to cut a branch from the master branch once the E release is released and goes into maintenance. Also we plan to provide an ready-made container image list.

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