SDN-R is modified for
- RANSlice Instantiation
- RANSlice Modification
- RANSlice Activation
- RANSlice Deactivation
- RANSlice Termination
- Closed Loop (covers intelligent slicing)
Refer the end-to-end RAN Slicing flow: https://wiki.onap.org/display/DW/RAN+Slicing+Flow
Assumptions & Limitations:
- PLMNInfo
- sNSSAI is configured in NRCellDU, NRCellCU, gNBCUUPFunction
- ConfigDB updates are not handled for activate and deactivate flows
- RRMPolicy
- rRMPolicyDedicatedRatio is alone considered for this release which indicates that resource sharing is not allowed across the RRMPolicymemberslist
- RRMPolicy update is handled for NRCellDU, NRCellCU, gNBCUUPFunction
- YANG Model
- NearRTRIC sliceprofile is not updated to Netconf in G-release
RAN Slice Lifecycle Management
SDNR Development
DMaapInterfaces & I/O parameters:
SO (RAN NSSMF) → SDN-C :
Topic Details:
Consumer Topics: (Polls messages from SO)
- RAN-Slice-Mgmt – Requests from SO are posted at this topic. The same topic is used for all RPCs
Asynchronous Response:
- Call back to SO is sent via Rest API
DMaap Messages:
RAN NF NSSI Allocation
{
"body": {
"input": {
"action": "allocate",
"payload": "{ \"input\": { \"sliceProfile\": { \"sliceProfileId\": \"1002\", \"sNSSAI\": \"2002\", \"maxNumberofUEs\": 20000, \"latency\": 10, \"uLThptPerSlice\": 3000, \"dLThptPerSlice\": 3000, \"maxNumberofConns\": 4000, \"coverageAreaList\": [\"Kingston\"], \"uEMobilityLevel\": \"\", \"resourceSharingLevel\": \"\", \"pLMNIdList\": [\"310-410\"] }, \"RANNSSIId\": \"\", \"RANNFNSSIId\": \"\", \"callbackURL\": \"\", \"additionalproperties\": { } } }",
"common-header": {
"timestamp": "2020-09-30T09:13:37.368Z",
"api-ver": "1.0",
"originator-id": "testing",
"request-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459",
"sub-request-id": "",
"flags": {
"mode": "EXCLUSIVE",
"force": "TRUE",
"ttl": "0"
}
}
}
},
"version": "1.0",
"rpc-name": "instantiateRANSlice",
"correlation-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459-1",
"type": "request"
}
RAN NF NSSI Modification
Requests available for below actions:
- modify-allocate
- modify-deallocate
- closed loop
- intelligent slicing
modify-allocate
{
"body": {
"input": {
"action": "modify-allocate",
"payload": "{\"input\":{\"sliceProfile\":{\"sliceProfileId\":\"b594-e98r-c7f2-ij78\",\"sNSSAI\":\"101-10000\",\"maxNumberofUEs\": 5000, \"uLThptPerSlice\":3000,\"dLThptPerSlice\":3000,\"maxNumberofConns\":4000},\"RANNFNSSIId\":\"ab9af40f13f721b5f13539d87484098\",\"callbackURL\":\"http://so-bpmn-infra.onap:8081/mso/WorkflowMessage/AsyncSdnrResponse/9d2d790e-a5f0-11e8-98d0-529269fb1459\",\"globalSubscriberId\":\"5GCustomer\",\"subscriptionServiceType\":\"5G\",\"additionalproperties\":{\"resourceConfig\":{}}}}",
"common-header": {
"timestamp": "2020-09-30T09:13:37.368Z",
"api-ver": "1.0",
"originator-id": "testing",
"request-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459",
"sub-request-id": "",
"flags": {
"mode": "EXCLUSIVE",
"force": "TRUE",
"ttl": "0"
}
}
}
},
"version": "1.0",
"rpc-name": "instantiateRANSlice",
"correlation-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459-1",
"type": "request"
}
modify-deallocate
{
"body": {
"input": {
"action": "modify-deallocate",
"payload": "{\"input\":{\"sliceProfile\":{\"sliceProfileId\":\"b594-e98r-c7f2-ij78\",\"sNSSAI\":\"001-100001\",\"maxNumberofUEs\": 5000, \"uLThptPerSlice\":3000,\"dLThptPerSlice\":3000,\"maxNumberofConns\":4000},\"RANNFNSSIId\":\"ab9af40f13f721b5f13539d87484098\",\"callbackURL\":\"\",\"globalSubscriberId\":\"5GCustomer\",\"subscriptionServiceType\":\"5G\",\"additionalproperties\":{\"resourceConfig\":{}}}}",
"common-header": {
"timestamp": "2020-09-30T09:13:37.368Z",
"api-ver": "1.0",
"originator-id": "testing",
"request-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459",
"sub-request-id": "",
"flags": {
"mode": "EXCLUSIVE",
"force": "TRUE",
"ttl": "0"
}
}
}
},
"version": "1.0",
"rpc-name": "instantiateRANSlice",
"correlation-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459-1",
"type": "request"
}
Closed Loop
{
"body": {
"input": {
"action": "reconfigure",
"payload": "{ \"input\": { \"sliceProfile\": { \"sliceProfileId\": \"b594-e98r-c7f2-ij78\", \"sNSSAI\": \"100-10000\" }, \"RANNFNSSIId\": \"\", \"callbackURL\": \"http:\/\/so-bpmn-infra.onap:8081\/mso\/WorkflowMessage\/AsyncSdnrResponse\/9d2d790e-a5f0-11e8-98d0-529269fb1459\", \"additionalproperties\": { \"resourceConfig\": { \"data\": [{ \"nearRTRICId\": \"11\", \"dLThptPerSlice\": 50, \"uLThptPerSlice\": 40 }, { \"nearRTRICId\": \"22\", \"dLThptPerSlice\": 50, \"uLThptPerSlice\": 30 } ] } } } }",
"common-header": {
"timestamp": "2020-09-30T09:13:37.368Z",
"api-ver": "1.0",
"originator-id": "testing",
"request-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459",
"sub-request-id": "",
"flags": {
"mode": "EXCLUSIVE",
"force": "TRUE",
"ttl": "0"
}
}
}
},
"version": "1.0",
"rpc-name": "instantiateRANSlice",
"correlation-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459-1",
"type": "request"
}
Intelligent Slicing
{
"body": {
"input": {
"action": "reconfigure",
"payload": "{ \"input\": { \"sliceProfile\": { \"sliceProfileId\": \"b594-e98r-c7f2-ij78\" }, \"RANNFNSSIId\": \"\", \"callbackURL\": \"http:\/\/so-bpmn-infra.onap:8081\/mso\/WorkflowMessage\/AsyncSdnrResponse\/9d2d790e-a5f0-11e8-98d0-529269fb1459\", \"additionalproperties\": { \"resourceConfig\": { \"snssai\": \"0001-0111\", \"data\": [{ \"gNBCUName\": \"cucpName\", \"nearRTRICId\": \"NearRTRIC1\", \"cellCUList\": [{ \"cellLocalId\": 111, \"configData\": { \"maxNumberofConns\": \"20\", \"predictedMaxNumberofConns\": \"25\", \"lastUpdatedTS\": \"yyyy\/MM\/dd HH:mm:ss\" } }, { \"cellLocalId\": 112, \"configData\": { \"maxNumberofConns\": \"20\", \"predictedMaxNumberofConns\": \"25\", \"lastUpdatedTS\": \"yyyy\/MM\/dd HH:mm:ss\" } } ] }, { \"gNBCUName\": \"cucpName2\", \"nearRTRICId\": \"NearRTRIC2\", \"cellCUList\": [{ \"cellLocalId\": 113, \"configData\": { \"maxNumberofConns\": \"20\", \"predictedMaxNumberofConns\": \"25\", \"lastUpdatedTS\": \"yyyy\/MM\/dd HH:mm:ss\" } }, { \"cellLocalId\": 114, \"configData\": { \"maxNumberofConns\": \"20\", \"predictedMaxNumberofConns\": \"25\", \"lastUpdatedTS\": \"yyyy\/MM\/dd HH:mm:ss\" } } ] } ] } } } }",
"common-header": {
"timestamp": "2020-09-30T09:13:37.368Z",
"api-ver": "1.0",
"originator-id": "testing",
"request-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459",
"sub-request-id": "",
"flags": {
"mode": "EXCLUSIVE",
"force": "TRUE",
"ttl": "0"
}
}
}
},
"version": "1.0",
"rpc-name": "instantiateRANSlice",
"correlation-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459-1",
"type": "request"
}
RAN NF NSSI Termination
{
"body": {
"input": {
"CommonHeader": {
"TimeStamp": "2018-11-30T09:13:37.368Z",
"APIver": "1.0",
"RequestID": "9d2d790e-a5f0-11e8-98d0-529269fb1459",
"SubRequestID": "1",
"RequestTrack": {},
"Flags": {}
},
"Action": " deallocate ",
"Payload": "{\"input\":{\"RANNFNSSIId\":\"79f2ce09-3de3-44cb-aa05-cae0cbe8f778\",\"callbackURL\":\"\",\"sNSSAI\":\"001-100001\",\"sliceProfileId\":\"4b7c3c8f-eb79-401a-b40b-290d74f5b189\",\"additionalproperties\":{}}}"
}
},
"version": "1.0",
"rpc-name": "terminateRANSliceInstance",
"correlation-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459-1",
"type": "request"
}
RAN NF NSSI Activation
{
"body": {
"input": {
"action": "activate",
"payload": "{\"input\":{\"sliceProfileId\":\"1002\",\"RANNFNSSIId\":\"ccb2f161-f1a7-4f9e-aa2b-9e2965e3c8a0\",\"callbackURL\":\"http://so-bpmn-infra.onap:8081/mso/WorkflowMessage/SDNRActivateResponse/ecf745ab-167d-49b3-8f62-8218f2e6eb8a\",\"sNSSAI\":\"101-10000\"}}",
"common-header": {
"timestamp": "2020-09-30T09:13:37.368Z",
"api-ver": "1.0",
"request-id": "ecf745ab-167d-49b3-8f62-8218f2e6eb8a",
"sub-request-id": "1"
}
}
},
"version": "1.0",
"rpc-name": "activateRANSliceInstance",
"correlation-id": "ecf745ab-167d-49b3-8f62-8218f2e6eb8a",
"type": "request"
}
RAN NF NSSI Deactivation
{
"body": {
"input": {
"action": "deactivate",
"payload": "{\"input\":{\"sliceProfileId\":\"1002\",\"RANNFNSSIId\":\"ccb2f161-f1a7-4f9e-aa2b-9e2965e3c8a0\",\"callbackURL\":\"http://so-bpmn-infra.onap:8081/mso/WorkflowMessage/SDNRActivateResponse/ecf745ab-167d-49b3-8f62-8218f2e6eb8a\",\"sNSSAI\":\"101-10000\"}}",
"common-header": {
"timestamp": "2020-09-30T09:13:37.368Z",
"api-ver": "1.0",
"request-id": "ecf745ab-167d-49b3-8f62-8218f2e6eb8a",
"sub-request-id": "1"
}
}
},
"version": "1.0",
"rpc-name": "activateRANSliceInstance",
"correlation-id": "ecf745ab-167d-49b3-8f62-8218f2e6eb8a",
"type": "request"
}
Callback response to SO is sent through REST API.Callback:
EndPoint URL: Comes in SO request
{
"status": "",
"reason": {},
"requestId": "",
"action": "",
"nfIds":{
"CUCPs":[],
"CUUPs":[],
"DUs":[]
}
}
CUCPs - List of gNBCUNames configured as part of this request
CUUPs - List of gNBCUUPId
DUs - List of gNBDUId
DMaap Consumer – RPC Mapping
Scenarios | Action in DMaap message | RPC to invoke |
ConfigureNSSI | allocate, modify-allocate, modify-deallocate, reconfigure | instantiateRANSlice |
terminateNSSI | terminate | terminateRANSliceInstance |
activateNSSI | activate | activateRANSliceInstance |
deactivateNSSI | deactivate | activateRANSliceInstance |
RPCs Supported
- configureNearRTRIC
- configureCU
- configureDU
- configureRANSliceInstance
- instantiateRANSlice
- terminateRANSliceInstance
- determineRANSliceResources - Not covered in G-release
- activateRANSliceInstance
- deactivateRANSliceInstance - As this RPC repeats most of the actions of activateRANSliceInstance, it is clubbed with activateRANSliceInstance
- CMNotify - Not covered in G-release
RPCs 1,2,3, & 4 are grouped and implemented as a single RPC 'instantiateRANSlice'.
RPCs in detail
1. InstantiateRANSlice
This RPC,
a) Allocates resources for a slice subnet instance
b) Configures NSSAI in RAN slice resources – cells, CU’s, DU’s, Near-RT RIC
c) Updates Slice details in Config DB
Request: Dmaap payload as string
Actions supported: allocate, modify-allocate, modify-deallocate, reconfigure
allocate - new RAN Slice created across RAN manged elements covered in the Tracking Area (TA) in the DMAAP request. Managed elements for TA is obtained from ConfigDB.
modify-allocate - sharing existing RAN slice for a new sNSSAI
modify-deallocate - sNSSAI is removed from the existing RAN Slice when the RAN Slice is shared among more than one sNSSAI and it cannot be terminated. terminateRANSliceInstance RPC is used to handle this action.
reconfigure - indicates closed loop or intelligent slicing. It is differentiated, based on the resourceConfig received in the Dmaap payload.
2. ActivateRANSliceInstance
a) Update the RAN resources status as ‘activated’. This is needed to enable the traffic flow
b) Currently, the status of sNSSAI is set to 'ÁCTIVE' for activate, 'INACTIVE' for deactivate
c) Config DB will be updated
Request: Dmaap payload as string
Action : activate, deactivate
4. TerminateRANSliceInstance
a) Deallocate resources for a slice subnet instance
b) Disassociate xNF’s to a slice subnet instance
c) Remove RAN slice from Config DB
Request: Dmaap payload as string
Action: terminate
Config DB updates
RPC | Entities to update |
instantiateRANSlice | NearRTRIC, GNBDUFunction, NRCellDU, RRMPolicy, GNBCUCPFunction, GNBCUUPFunction, NRCellCU, RANSliceInventory, SliceProfile |
| terminateRANSlice | NearRTRIC, GNBDUFunction, NRCellDU, RRMPolicy, GNBCUCPFunction, GNBCUUPFunction, NRCellCU, RANSliceInventory, SliceProfile |
Refer Config DB for schema details.
16 Comments
Vishal Varvate
Hi,
RAN-Slice-API graphs in the dgbuilder is not actually configuring CU/DU it only prints hardcoded message as "API Has Been Invoked".
Just wanted to know what's the status of RAN-Slice-API implementation for RPC InstantiateRANSlice , ActivateRANSlice etc.
Ahila P
Implementation has been done. Please check the latest image. ActivateRANSlice is yet to be tested.
Vishal Varvate
Hi,
Thank you for your quick support.
We have used latest Guilin OOM charts and dgbuilder image used is onap/ccsdk-dgbuilder-image:1.0.2 which is the latest image available on nexus repository.
Here, ran slice api graphs are implemented as below which is just printing hardcoded messages.
Ahila P
Please note that configureCU implementation is included as part of instantiateRanSlice. instantiateRanSlice rpc takes care of updating all the NFs.
ravi kumble
Hi Ahila,
Looks like latest image for dg builder is also not having the implementation for ran-slice-api module rpcs. Could you please let us know which version of dgbuilder is having the implementation for ran-slice-api rpcs (configureNearRTRIC, instantiateRanSlice etc)?
Thanks in advance.
With Regards,
Ravi
Ahila P
Hi,
onap/ccsdk-dgbuilder-image-1.1.2 or 1.1.3-SNAPSHOT versions contains the latest changes. Please try with these images and let me know, if it doesn't work.
Please note that configureNearRTRIC implementation is included as part of instantiateRanSlice. instantiateRanSlice rpc takes care of updating all the NFs.
Vishal Varvate
Hi Ahila P,
As per your suggestion we tried using onap/ccsdk-dgbuilder-image-1.1.2 and 1.1.3-SNAPSHOT-latest image but here also ran-slice-api rpc's dont have any implementation and its printing the same hardcoded message.
and one of the rpc i.e. instantiateRANSlice RPC implementation is as below.
Ahila P
Hi Vishal,
As a workaround, please copy the DGs from gerrit to /opt/onap/sdnc/svclogic/graphs/ranSliceapi/ directory inside sdnc container and start the ./install.sh script inside /opt/onap/sdnc/svclogic/bin to activate the DGs. I will check on this issue and come back.
DGs needed for instantiateRANSlice
DG: ran-slice-api_instantiateRANSlice.xml
subDG: ran-slice-api_instantiateRANSliceAllocate.xml
Thanks,
Ahila P.
Vishal Varvate
Hi Ahila P,
Thank you for your support.
We have managed to upload the latest ran-slice-api graphs and its available in dgbuilder and database.
When we were trying to test it found one issue that sdnc.odl.url-base property was configured to http://sdnc-oam.onap:8282/restconf/operations which is wrong so we were getting timeout exception. So I changed it to http://sdnc.onap:8282/restconf/operations and dmaap-listener was able to send request to the ODL successfully.
But now ODL is sending 400 Bad request error.
can you please help us here what to do next ?
Ahila P
Hi Vishal Varvate,
Please check if the ran-slice DG XMLs are placed in the sdnc container at /opt/onap/sdnc/svclogic/graphs/ranSliceapi.
Check from DG UI whether the DGs(version - ${project.version}) are in activated state.
Thanks,
Ahila P.
Vishal Varvate
Hi Ahila P.
Sorry for delayed response.
Yes all ran-slice-api DGs are in active state only.
But still we are getting the same error in ran-slice-consumer
Can you please help on this ?
Aniello Paolo Malinconico
Hi Vishal Varvate , have you solved the issue about "ran-slice-api" rpc not implemented?
Thanks,
Aniello
Vishal Varvate
Hi Aniello Paolo Malinconico ,
Dg's of ran-slice-api were not present in ran-slice-api module.Alternatively we manually added those dg's and finally used the ran-slice-api.
Not sure about the latest H release if its already having all the DG's if so then there is no need to add it manually.
ravi kumble
Thanks for immediate response
Martin Skorupski
Hi Ahila P , all!
Greetings from O-RAN-SC projects O-DU, OAM, SIM
We would like to add for
slightly different configuration on the RAN nodes (O-DU and O-RU /in hybrid mode) based on the Yang definitions by O-RAN WG4 OpenFronthaul-Management-Plane and O-RAN-SC O-DU yang models.
Questions:
Any guidance and feed back would help to integration O-RAN/O-RAN-SC artifacts into this solution.
Info to: N.K. Shankaranarayanan ; Sandeep Shah ; Manasi Padhy ; HariomGupta(HCL) ; @Vidhu ; Hanif Kukkalli ; Alexander Dehn ; krishna moorthy ; Goutam Roy
Ahila P
Hi Martin Skorupski ,
Thank you for the interest !!! I replied to these questions through mail.
Thanks & Regards,
Ahila P.