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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:

  1. RRMPolicy
    1. rRMPolicyDedicatedRatio is alone considered for this release which indicates that resource sharing is not allowed across the RRMPolicymemberslist
  2. YANG Model
    1. 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)

      1. RAN-Slice-Mgmt – Requests from SO are posted at this topic. The same topic is used for all RPCs

Asynchronous Response: 

      1. Call back to SO is sent via Rest API

DMaap Messages:

RAN NF NSSI Allocation

Request 
{ 
    "body": { 
        "input": { 
            "CommonHeader": { 
                "TimeStamp": "2018-11-30T09:13:37.368Z", 
                "APIver": "1.0", 
                "RequestID": "9d2d790e-a5f0-11e8-98d0-529269fb1459", 
  				 "SubRequestID": "1", 
                "RequestTrack": {}, 
                "Flags": {} 
            }, 
            "Action": "allocate”,             
            "payload": "{ \"input\": { \"sliceProfile\": { \"sliceProfileId\": \"1002\", \"sNSSAI\": \"100-10000\", \"maxNumberofUEs\": 20000, \"latency\": 10, \"uLThptPerSlice\": 3000, \"dLThptPerSlice\": 3000, \"maxNumberofConns\": 4000, \"coverageAreaList\": [\"Lavelle\"], \"uEMobilityLevel\": \"\", \"resourceSharingLevel\": \"\", \"pLMNIdList\": [\"310-410\"] }, \"RANNSSIId\": \"\", \"RANNFNSSIId\": \"\", \"callbackURL\": \"\", \"additionalproperties\": { } } }" 
 }
        }, 
        "version": "1.0", 
 "rpc-name": " InstantiateRANSlice", 
        "correlation-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459-1", 
        "type": "request"
}

RAN NF NSSI Modification

Request 
{
	"body": {
		"input": {
			"CommonHeader": {
				"TimeStamp": "2018-11-30T09:13:37.368Z",
				"APIver": "1.0",
				"RequestID": "9d2d790e-a5f0-11e8-98d0-529269fb1459",
				"SubRequestID": "1",
				"RequestTrack": {},
				"Flags": {}
			},
			"Action": "modify-allocate,modify-deallocate,reconfigure",
			"Payload": "{\"input\":{\"sliceProfile\":{\"sliceProfileId\":\"\",\"sNSSAI\":\"001-100001\",\"maxNumberofUEs\": 5000, \"uLThptPerSlice\":3000,\"dLThptPerSlice\":3000,\"maxNumberofConns\":4000},\"RANNFNSSIId\":\"\",\"callbackURL\":\"\",\"globalCustomerId\":\"5GCustomer\",\"serviceType\":\"5G\",\"additionalproperties\":{\"resourceConfig\":{}}}}"
		}
	},
	"version": "1.0",
	"rpc-name": " InstantiateRANSlice ",
	"correlation-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459-1",
	"type": "request"
}

where,
resourceConfig:
Closed Loop:
{
         "1":{
            "dLThptPerSlice":50,
            "uLThptPerSlice":40
         },
         "2":{
            "dLThptPerSlice":50,
            "uLThptPerSlice":30
          }
}

Intelligent Slicing:

{ 
   "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"
               }
            }
         ]
      }
   ]
}

RAN NF NSSI Termination

Request 
{
	"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

Request 
{
	"body": {
		"input": {
			"Action": "activate",
			"Payload": "{\"input\":{\"sliceProfileId\":\"4b7c3c8f-eb79-401a-b40b-290d74f5b189\",\"RANNFNSSIId\":\"79f2ce09-3de3-44cb-aa05-cae0cbe8f778\",\"callbackURL\":\"http://so-bpmn-infra.onap:8081/mso/WorkflowMessage/SDNRActivateResponse/ecf745ab-167d-49b3-8f62-8218f2e6eb8a\",\"sNSSAI\":\"001-100001\"}}",
			"CommonHeader": {
				"TimeStamp": "2021-02-24T11:27:33.033",
				"APIver": "1.0",
				"RequestID": "ecf745ab-167d-49b3-8f62-8218f2e6eb8a",
				"SubRequestID": "1"
			}
		}
	},
	"version": "1.0",
	"rpc-name": "activateRANSlice",
	"correlation-id": "ecf745ab-167d-49b3-8f62-8218f2e6eb8a",
	"type": "request"
}

RAN NF NSSI Deactivation

Request 
{
	"body": {
		"input": {
			"CommonHeader": {
				"TimeStamp": "2018-11-30T09:13:37.368Z",
				"APIver": "1.0",
				"RequestID": "9d2d790e-a5f0-11e8-98d0-529269fb1459",
				"SubRequestID": "1",
				"RequestTrack": {},
				"Flags": {}
			},
			"Action": "deactivate ",
			"Payload": "{\"input\":{\"RANNFNSSIId\":\"\",\"sNSSAI\":\"001-100001\",\"sliceProfileId\":\"\",\"callbackURL\":\"\",\"additionalproperties\":{}}}"
		}
	},
	"version": "1.0",
	"rpc-name": "deactivateRANSliceInstance",
	"correlation-id": "9d2d790e-a5f0-11e8-98d0-529269fb1459-1",
	"type": "request"
}

Callback:

Callback response to SO is sent through REST API.

EndPoint URL: Comes in SO request

Callback Response 
{
  "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

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