This page documents the inFlux DB schema used in the E Release for the KPM (and other) information collected from E2 Simulator.
Version | Author | Comments | Date |
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0.1 | Initial DRAFT, calling for comment! |
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This schema is open for discussion and contribution from the O-RAN community |
The goal is to have a generic schema definition for xApps to access timeseries data obtained via E2SM/KPM and possibly the other E2SM protocols.
Essential InfluxDB terms:
For the labelling of fields we will be using names from E2SM/KPM v2.0 (MeasurementLabel) and TS 28.552 "5G performance measurements" as much as possible.
Following the general ideas in from TS 28.552, using short labels, organized in hierarchical form <topic>[.<subtopic>].<name>
"CellReports" table containing the following fields:
Timestamp
NRCellIdentity (tag?)
Any of the fields defined for cell reports in TS 28.552, for example the following are provided by RIC Test scenario generator:
DRB.UEThpDl - Average DL throughput in Kb/s
RRU.PrbUsedDl / RRU.PrbAvailDl
RRU.PrbUsedUl / RRU.PrbAvailUl
QosFlow.PdcpPduVolumeUl - UL PDCP PDU Data Volume (amount of kilobytes in the reporting period)
QosFlow.PdcpPduVolumeDl - DL PDCP PDU Data Volume (amending inconsistency in the case of the final "L" in TS 28.552)
And proprietary extensions:
Viavi.Geo.x - Non standard / Viavi proprietary extension / External enrichment
Viavi.Geo.y
"UeReports" measurement table containing the following fields:
Timestamp
UE.Id - String representation to accomodate the many forms.
Note: A "UE id resolution" xApp may be needed to match the same UE on different measurements and possibly producing unique ids for this field
Slice.Id
DRB.UEThpDl - TS 28.552 Average DL UE throughput
RRU.PrbUsedDl - TS 28.552 DL PRB used for data traffic
Viavi.Geo.x”, .y, .z... Viavi proprietary extensions
RF.serving.Id - May be just the PCI or resolved into NRCellIdentity
RF.serving.RSRP (Loosely based on LTE specs)
RF.serving.RSRQ
RF.serving.RSSINR
RF.nb1.CellId - 1st neighbour id
RF.nb1.RSRP, etc. 1st neighbour signal levels
RF.nb2.CellId - 2nd neighbour id
RF.nb2.RSRP, etc. 2nd neighbour signal levels