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 |