Mobility Management Metrics

Mobility Management (MM) is one of the most significant feature of the mobile networks, and Handover is one typical action of mobility.
Handover can occur in the following different ways:
  • Intra-gNB-DU.
  • Inter gNB-DU and Intra gNB-CU Handover where source and target gNB-DU are connected to common gNB-CU.
  • Inter gNB-CU Handover through Next Generation (NG) or Xn interface.
  • 5G to 4G Evolved Packet System (EPS) Handover.
Example of sample MM metrics.
{ "type": "Kafka-Collector", "instance": "KC-1", "timestamp": "2021-11-11T23:02:25.529000Z", "metricType": "MM", "domain": "5G", "sub-domain": "vRAN", "properties": { "dataSource": "100.127.46.83:6060", "deviceType": "cucp", "deviceName": "cucp-851008000", "entityType": "ueconmgr", "entityName": "ueconmgr-9f9567b57-vn9rw" }, "metrics": { "MM_5QI_HoInAtt": 100, "MM_5QI_HoInSucc": 0, "MM_Ho5gsToEpsFallbackTimeTotal": 0, "MM_HoExeHo5gsToEpsFallbackTimeTotal": 0, "MM_HoExeInterReq": 0, "MM_HoExeInterSucc": 0, "MM_HoExeIntraReq": 0, "MM_HoExeIntraSucc": 0, "MM_HoIntraNRInterCUTotExeTime": 0, "MM_HoIntraNRInterCUTotTime": 0, "MM_HoIntraNRIntraCUTotExeTime": 0, "HoRsrpDist_UENbrRsrpDist": 0, "HoRsrqDist_UENbrRsrqDist": 0 }, "tags": { "CUCPID": "851008000", "RUID": "851002411", "DUID": "851008008", "CellClusterId": "111", "kubernetes_namespace": "lasnv001b-ns-mv-cucp-851008" } },
The following table lists the JSON definitions.
JSON
Description
Units
MM.HoExeInterReq
Indicates the number of outgoing Handover executions requested by the source gNB.
Integer
MM_5QI_HoInAtt
Indicates the number of 5QI incoming Handover preparation attempts.
Double
MM_5QI_HoInSucc
Indicates the number of successful 5QI Handover incoming.
Double
MM_Ho5gsToEpsFallbackTimeTotal
Indicates the total time of EPS fallback Handover.
Millisecond
MM_HoExeHo5gsToEpsFallbackTimeTotal
Indicates the total time of EPS fallback Handover executions.
Millisecond
MM.HoExeInterSucc
Indicates the number of successful Handover executions received by the source gNB.
Integer
MM.HoExeIntraReq
Indicates the number of outgoing intra-gNB Handover executions requested by the source CUCP.
Integer
MM.HoExeIntraSucc
Indicates the number of successful intra-gNB Handover executions received by the source CUCP.
Integer
MM_HoIntraNRInterCUTotExeTime
Indicates the total time of Xn Handover execution for Intra-NR Inter-CU.
Millisecond
MM_HoIntraNRInterCUTotTime
Intra-NR Inter-CU Total Time of Xn Handover.
Millisecond
MM_HoIntraNRIntraCUTotExeTime
Indicates the total time of Xn Handover execution for Intra-NR Intra-CU.
Millisecond
HoRsrpDist_UENbrRsrpDist
Indicates the number of Handovers triggered with Reference Signal Receive Power (RSRP) distribution bucket.
Double
HoRsrqDist_UENbrRsrqDist
Indicates the number of Handovers triggered with Reference Signal Received Quality (RSRQ) distribution bucket.
Double