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Cherry release page for the O-RAN Software community   

Welcome to the Cherry release page for the O-RAN Software community          

This page contains all the information specific to the Cherry release

See Requirements and Software Architecture under Committees and Projects for more details on current activities.

Second release capabilities include contributions under the following projects:

Table of Contents

Get Cherry

Documentation

Cherry Release Timeline

Cherry Timeline



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 management) 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).

Cherry release highlights (12-08-20):

  • Expanded set of xApps from expanded community: Cherry release includes xApps from AT&T (TS, QP-D, QP, HW, MC), Samsung (KPIMON), and HCL (AD).
  • Traffic steering use case has been extended to include data collection via E2 (using pre-spec extensions to the E2 KPM SM) by the KPIMON xApp. The KPIs used by the traffic steering use case are generated by Viavi RAN simulator.
  • ML-based xApp: The AD (Anomaly Detection) xApp from HCL uses ML-based algorithm for anomaly detection.The AD xApp is losely integrated with the TS use case in Cherry b ut a tigher integration is planned for Dawn.
  • The demo HW (HelloWorld) xApp now has a full implementation of the HW E2 SM including subscription, indication and control as well as C++ class wrappers for all the E2 messages related to HW E2 SM.

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

Jira
serverORAN Jira
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Status (9-8-20): Integration of KPIMON in progress, new xApps under design, QP-Driver updated to use new SDK for alarms and metrics.

Status (9-30-20): Samsung taking over integration and testing of KPIMON; Viavi simulator producing data - an update in the data content expected this week (UE throughput, UE ID); ML-model building started based on Viavi and other simulated data (QP, AD); new xApp repos requested (Signal Storm Protection, Load Prediction); bug fixes to HelloWorld, E2 AP/SM abstraction layer underway for HelloWorld.

Status(11-17-20): ML-xApps (QP,AD) code committed - dealing with merge issues. End to end testing and bug fixes underway.  E2AP/SM abstraction work for HelloWorld (C++) xApp completed. New repos created for HelloWorld in go and python (for Dawn).




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

Mission: Better manageability of, for example, E2 connections, the RIC platform as well as xApps via the xApp frameworks.

Primary Goals: Support operator-initiated health-check via E2 and be able to close all current or reject all future E2 connections. More manageability of the RIC platform and xApps, including, for example, platform statistics from E2 and A1 and more capabilities in the language-specific xApp frameworks and SDL (shared data layer).

Cherry release highlights (2020-12-01): We implemented the operator-initiated E2 connection health check. There is now more alignment in the level of support of various xapp framework and SDL features in python, c++ and go. For example: SDL (shared data layer) now also supports notifications in Python. The xApp framework for C++ now supports alarms, statistics and configuration management. xApps can now use SDL notifications for changes in connection states of E2 nodes. By confirming route updates before continuing we increased robustness in management of internal routes. We now also support using existing non-E2 protocols for communication with RAN. We also adapted the scaling implementation for E2 termination to the reversal of E2AP connection initiation introduced by E2AP 01.00. The E2 manager can now reject new E2 connections requests in addition to closing all E2 connections. E2 and A1 now provide platform statistics for their connections. 

Detailed list of JIRA items that we worked on in Cherry (requires LinuxFoundation login): Remaining open items: link  (1 items). Items that are marked as done: link (23 items). Moved out from Cherry: link (24 = 13 stretch goal items and 11 "normal items").

Status 2020-12-11:

HCL: RIC-360 done.

ATT: (e-mail sent): RIC-359 (likely postponed)

Status 2020-12-08:

HCL: DONE: RIC-149 (=RIC-362), RIC-509, RIC-109.  // delayed into Dawn: RIC-150 // RIC-360: Code submitted & Merged CLOSE once gerrit review in RIUC-678 is done (see open review https://gerrit.o-ran-sc.org/r/c/it/dep/+/5237)

ATT: (e-mail sent): RIC-359 (likely postponed)

Status 2020-11-24:

HCL: RIC-149, RIC-150, RIC-360, RIC-509. Ask if RIC-362 (duplicate of RIC-149) is already implemented by HCL.

Nokia: (1) stats related: RIC-422 posytponed to early Dawn. Related stats-items (RIC-33, RIC-126) postponed to later (likelly ZZZ_future). (2) submgr related RIC-76 and RIC-71 were postponed.

ATT: (e-mail sent): RIC-359 (likely postponed)

Status 2020-11-05: Remaining open items

RIC-56: I now moved all sub user storied for actual alarms as separate independent Epics. Can be tested with artiifical alarm or QP driver xApp alarm. The framework is ready. Marking RIC-56 as Done.

RIC-57: two subitems open (for Nune 2020-11-12 reminder sent) and one for Timo (RIC-104). Two e-mails sent. Result: RIC-104 (not yet done, move out of Cherry) Done

RIC-76:  e-mail sent as item 6 in bulk mail.

RIC-95: Completed (2020-11-12)

RIC-359: Queried status. 2020-11-12: Reminder sent

RIC-360, RIC-150. RIC-362, RIC-509: Reminder to subteam h1 sent.

RIC-363: e-mail send to Matti. 2020-11-12: reminder sent and Matti will close it with some conclusions. DONE

RIC-365 DONE. and remaining subuser stories (like RIC.429) moved to future work epic (RIC-681)

RIC-367 DONE and two subitems moved to Dawn RIC-682. xapp-framework python. e-mail sent we need to get the E2AP work done, and then we could extract one subitem as own epic and clsoe teh oevrall item.

RIC-422: e-mail send to Nune (bulk mail)

Status 2020-09-30: (a) I (PTL) am happy to see HCL doing work on Sonarqube for repos. Much more work done by HCL in context of benchmarking (simulator work), new helm and k8s version, Redis cluster suppor and testing, JIRA link for team H1  (b)  Samsung also doing key work items, e.g. for RIC-95 health check (with side affect of support for E2 SERVICE QUERY and related) - suffering from simulator support (RIC-372 already mentioned below), work started on demo (aka more elboarte hello world) xApp in go/python. (c) four items moved out of Cherry as already visible that not enough time: link . (d) 28 Cherry items = 4 moved out of Cherry + 10 done + 14 in progress or still to be started (e) Matti and Thoralf gave a presentation on RIC status in the virtual ONeS 2020 (link). Waiting for copyright/licensing results between O-RAN and O-RAN SC.

Status 2020-09-02: (a) I (PTL) am happy to see teams from Samsung and HCL joining the project with them actively working on capabilities related to the E2 simulator (actually in Alex' simulator project), more test automation (using the robotframework), benchmarking, SDL (shared data layer). (b) RIC-372 was the first commit from these new participants (c) we might be aiming for self-certification under LF's CII badge level "basic", (d) work on O1-related functions, like E2 and A1 statistics, or some alarms already done. (e) Adaptation to E2APv1.1 (likely released in November) only happening post-Cherry.



Non-Real-time RIC (A1 Interface) (NONRTRIC)

Primary Goals:
  • The primary goal of Non-RT RIC is to support intelligent RAN optimization by providing policy-based guidance, ML model management and enrichment information to the near-RT RIC function so that the RAN can optimize, e.g., RRM under certain conditions.
  • It can also perform intelligent radio resource management function in non-real-time interval (i.e., greater than 1 second).
  • Non-RT RIC can use data analytics and AI/ML training/inference to determine the RAN optimization actions for which it can leverage SMO services such as data collection and provisioning services of the O-RAN nodes.
  • Non-RT-RIC will define and coordinate rApps (Non-RT-RIC / SMO appliciations) to perform Non-RT-RIC tasks.
  • Non-RT-RIC will also host the new R1 interface (between rApps and SMO services)

Cherry Feature Scope:

  • A1 Policies:
    • A1 Policy Management Service (hosted in ONAP CCSDK)
    • A1 Policy Controller Adapter (hosted in ONAP CCSDK)
    • A1 Simulator / test stub (SIM project)
    • A1 Policy Control-Panel (PORTAL project)
    • Support A1-AP v2.0.
  • A1 Enrichment Information
    • Initial version of A1 EI Job coordination function/service
  • Deployment/Integration
    • Docker-based & OSC Kubernetes deployment & ONAP OOM Kubernetes deployment (Overlaps with SMO project)
  • rApps
    • Very simple hello-world rApp
    • TrafficSteering usecase
    • Healthcheck usecase
  • rApp support
    • Initial rApp catalogue/inventory
    • Initial approach with rApp packaging (overlaps with "common App" usecase, & SMO project)
  • Requirement gathering & initial test/integration with ML supporting functions in NONRTRIC/SMO
  • Requirement gathering & initial test/integration with data collection & coordination functions in NONRTRIC/SMO
  • Requirement gathering & initial test/integration with CMDB (if progressed in ONAP), Topology & Inventory functions in SMO

Update - 06/October/2020

  • Prototyping of the A1 enrichment Information coordination service is in progress.
  • Initial prototype of rApp registration / catalogue function, Very simple hello-world rApp.
  • Ongoing work to support O-RAN WG2 A1-P spec.
  • A1 Policy Management Service and A1 Policy Controller Adapter hosted in ONAP CCSDK are getting ready for ONAP Guilin Milestone RC0.
  • Other ongoing tasks: documentation, automated integration testing, CSIT, Run benchmark test in a cloud instance, Function Test environment refactoring, etc.

Update - 04/November/2020

  • Initial rApp catalogue is mostly ready for first tests.
  • A1 Enrichment Information job coordination function ready.
  • Ongoing work on A1 EI job control in NONRTRIC Control Panel.
  • A1-AP v2.0 (A1 Policy) is ready for implementation (Internal implementation already completed, now ready for release to the community)
  • Integration of ONAP A1 Controller functions
  • Extensions & evolution for NONRTRIC Control Panel & A1 SIM (version update, & gneral improvements)
  • A1 Policy Management Bench-marking completed ... more info to follow
  • Other ongoing tasks: documentation, automated integration testing, CSIT, Function Test environment refactoring, etc.

Update - 08/December/2020

  • A1 Enrichment Information (EI) Coordination function ready for release
  • Updated A1 EI job control in NONRTRIC Control Panel ready for release
  • Updated A1 EI simulator integrated in A1 SIM
  • Initial rApp catalog ready for release
  • A1-AP v2.0 (A1 Policy) functionality in A1 Adapter, A1 Policy Management System, NONRTRIC Control Panel, and A1 SIM
  • ONAP A1 Controller functions integrated
  • General extensions & evolution for NONRTRIC functions (version update, & gneral improvements)
  • HTTP Proxy support added for A1 Interface (Policy)
  • Other ongoing project maintenance tasks: documentation, automated integration testing, Function Test environment refactoring, etc.
  • Demo available at: 2020-12-04 - OSC NONRTRIC Cherry Demo

Jira: Count of Epics (

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OAM (O1 Interface)

Primary Goals:

  • update OAM projects for latest O-RAN Specifications
    • O-RAN Operations and Maintenance Architecture Version 3.0 - April 2020
    • O-RAN Operations and Maintenance Interface Version 3.0 - April 2020

    • O-RAN Use Cases Detailed Specification 2.0 - April 2020

    • O-RAN Management Plane Specification Version 3.0 and YANG Models Version 3.0 - April 2020

    • Draft O1 yang models implemented and tested against the SIM implementation - not published in LNF repos

  • support of the application LCM use case
    • Discussion about the details together with the SMO project
  • handover SMO artifacts to new SMO project

Cherry Feature Scope: 

  • Switch to Java11
  • Switch to OpenDaylight version Sodium (O1 termination NetConf)
  • https only support for  VES-Collector (O1 termination VES)
  • full IPv6 support

Please see OAM Cherry page for further details

Status:

Jira: Count of Epics (

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Demo of OAM use cases



O-RAN Central Unit (OCU)

Primary Goals: 
  • Source code includes RRC, Ng, E1, F1. Platform and OM are provided in  dependent libraries.
  • O-CU-CP is integrated with O-CU-UP, O-CU functions should be complete.

Cherry Feature Scope: 

RRC: 

  • support Broadcast of system information;
  • support RRC connection control;

NG:

  • support PDU Session Management Procedures
  • support UE Context Management Procedures
  • support Transport of NAS Messages Procedures
  • support Interface Management Procedures

E1:

  • support Interface Management procedures
  • support Bearer Context Management procedures

F1:

  • support Interface Management procedures
  • support UE Context Management procedures
  • support RRC Message Transfer procedures
  • support System Information Procedures


PTL: Yingying Wang

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

Jira
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  F1

Jira
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 SDAP

Jira
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 PDCP

Jira
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 RRC

Jira
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 Ng

Jira
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 E1




O-DU High

Primary Goals: 

  • Develop L2 layers to achieve UE attach with UL and DL data on FDD, mu=0, BW=20 MHz
  • Interface with O-CU on F1AP
  • Interface with near RT RIC on E2AP
  • Interface with O-DU Low using FAPI
  • Interface with OAM on O1


Cherry Feature Scope: 

  • Implement UE attach procedure with basic scheduling on FDD, mu=0, BW=20 MHz
  • Implement single UE DL and UL data path and bench-marking
  • Add support for 64QAM modulation scheme in DL and 16QAM in UL
  • Add support for all short PRACH formats
  • Integrate O-DU High with O-DU Low
  • Integrate with Viavi sim/O-CU
  • Explore O1 interface
  • Establish Netconf session for O1 interface for CM
  • Support Health Check use-case

Updated: 9 16 December 2020

Documentation and release related activities for Cherry release have been completed.

Jira: EPICS Status below:

Dependency/Blockers:

  • Custom Yang files will be used for Dev activity.
  • FAPI files being used provided by INTEL, which is not completely in-line with the latest released version from SCF.



O-DU Low

Primary Goals:  

  • Integrate with O-DU High with FAPI interface with cherry release aligned IOT profile
  • Integrate with O-DU emulator from Viavi with cherry release aligned IOT profile
  • Support E2E integration with O-CU, O-DU High, O-RU emulator and UE for UE attachment


Cherry Release Feature Scope: 

  • O-DU Low and O-DU High integration according to RSAC and INT project alignment features and scope
  • O-DU Low and O-RU/RRU emulator integration  according to RSAC and INT project alignment features and scope
  • E2E integration  according to RSAC and INT project alignment features and scope
  • O-DU Low integrated with thirty party commercial SW to verify the UE attachment and traffic, update the O-DU Low version accordingly
PTL: @Zhimin Yuan
  • Status

    • O-DU Low integrated with thirty party commercial SW to verify the UE attachment and traffic, update the O-DU Low version accordingly – Done

    Jira
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  • successfully do the UE attachment and traffic

    Jira
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  • O-DU Low and O-DU High integration – in progress

      • OSC Lab environment is installing OSC INF, O-DU Low can build/run in OSC INF
      • O-DU Low and O-DU High P5 massage integration using O-CU stub and O-DU low time mode – done
      • O-DU Low and O-DU High further P7 integration  - not start

    Jira
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  • O-DU Low and O-RU/RRU emulator integration - in progress

    • according to RSAC and INT project alignment features and scope  – Done
    • integration the S-plane, O-DU low and O-RU emulator get synchronized – in progress
    • C-plane test, O-RU emulator can parse the C-plane message correctly – not start
    • U-plane test, pass SSB, PDSCH, PUSCH, PRACH channel data exchange – not start

    Jira
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  • E2E integration  – not start

    • support E2E integration with O-DU High, O-CU, O-RU emulator and UE
    • align with RSAC and INT project alignment features and scope



Simulators (SIM)

Primary Goals:

  • Support rapid prototyping by providing simulated interfaces

Cherry Feature Scope:

  • O1 Simulator enhancements
    • Upgrade NETCONF Server framework
  • E2 Simulator enhancements
    • Implement more message types
    • Assess if E2 Simulator can be used for benchmarking
  • Maintain alignment with latest YANG models

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

Jira
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Status (07 Oct. 2020): 

  • E2 Simulator - support for new E2 Messages - done
  • E2 Simulator - benchmarking of RIC - in progress
  • O1 Simulator - upgrade of NETCONF Server - in progress
  • OTF integration - TBD



Infrastructure (INF)

Primary Goals: 

  • 2 servers. 2 AIO servers with HA (high availability), the controller functionality and storage functionality will be deployed at the 2 servers with standby-active mode managed by "service management". If one server or one service in one server has error, it will be switched from active to standby one to maintain the service availability.
  • 2 AIO servers with additional worker node.

Cherry Feature Scope:  TODO

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

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  •  The INF project status update at INF project status for 26-Aug-2020.
  •  The INF project status update at 24-Sept-2020
    • The first major goal of "enable the duplex deployment with HA features" has been done. No block issue in JIRA although there are some issues left.
  • Status update 28-Oct-2020
    • The AIO deployment scenario has been supported. Althought there are some issues/bugs, but it won't affect the functionalities at all.
    • For the AIO with additional worker nodes, the codes had been checked into the repo, the verification and test is still ongoing. (it will be delayed to Dawn release).
    • Continue to support the integration test.
    • Continue to prepare the document of Cherry release.
  • Status update 11-Nov-2020
    • Already add the packages which were missing during the ODU-High/Low integration.
    • Some other issues will be addressed before 14-Nov-2020
    • In general, ready to cut-off by 14-Nov-2020
  • Status update 09-Dec-2020
    • Final image has been generated.
    • Finish the integrate test with O-DU Low/High
    • Document has been updated into repo for release note and others.



Integration and Test (INT)

Primary Goals: To support OSC project CI pipeline. To test and validate the components and use cases

Cherry Feature Scope: 

  • Automated CLM and SonarQube Scanning CI Jobs
  • Improve CI for OSC projects
  • Validate and and Test platform and use cases 


PTL:  Zhe Huang

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

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Status (28 Oct. 2020): 

  • CLM scanning jobs:
    • done: A1 and python xApp-framework
    • Pending: Rest of the projects
  • SonarQube scanning jobs:
    • 21 projects passed
    • 7 project failed
  • OSC Lab internal CI pipeline:
    • Initiate works with O-DU-low CI 
  • OSC Lab Testing and Validation
    • SMO Yang model tests completed.
    • VM created for TS use case validation.



Documentation (DOC)

Primary Goals: TODO
Bronze Feature Scope: TODO

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




Service Management and Orchestration  (SMO)

Primary Goals: The primary goal of the SMO project is to integrate different software artifacts of existing open-source projects creating a fully functional open-source Service Management and Orchestration (SMO). 
Cherry Feature Scope: SMO entered the Cherry release in the middle of third sprint of code development. As such its scope is fairly modest. They are validation of application packages, assuming that we can agree on the format of the package, on boarding of applications and storing them in a package catalog which also has to be agreed upon, and as a stretch goal, setting up an environment where YANG modules that will be used by O-RAN, whether they are from 3GPP, and O-RAN itself can be used by vendors developing RIC, CU, DU and the RU to test a MVP configuration.

Status:  A proposal was made on application package format, and there was some agreement on it following the ETSI SOL 004 specification. The contributions into the SMO project currently validate that part of the agreement, and allow for Network Function, xApp and rApp vendors to validate their package using the tools developed in SMO.

David Kinseyis driving package catalog requirements, which is LCM Step 3. But it was determined that package catalog can be implementation specific, and therefore SMO cannot validate any particular catalog. As such LCM Step 3 will be skipped.

The second part of SMO was the setup of a framework for testing of YANG models that are going to be used by SMO and the Network Functions that constitute the O-RAN solution. Thanks Martin Skorupski, Zhe Huang , and Alex in setting up that framework in the OSC lab. 

For a detailed workflow and end-to-end test manual of the two parts, refer to Cherry Release Test Plans for SMO.


Jira: Count of Epics (

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