1 .. This work is licensed under a Creative Commons Attribution 4.0 International License.
2 .. SPDX-License-Identifier: CC-BY-4.0
3 .. Copyright (C) 2020 AT&T Intellectual Property
8 QoE Predictor (QP) is an Xapp in the Traffic Steering O-RAN use case,
9 which uses the following Xapps:
11 #. Traffic Steering, which sends prediction requests to QP Driver.
12 #. QP Driver, which fetches data from SDL on behalf of traffic steering,
13 both UE Data and Cell Data, merges that data together, then sends off
14 the data to the QoE Predictor.
15 #. QoE Predictor, which predicts and sends that prediction back to Traffic Steering
16 #. KPIMONN, which populates SDL in the first place.
21 The QP Xapp expects a prediction-request JSON message via RMR with the following structure::
24 "predictionUE": "UEId1",
26 { "servingCellId" : "CID2",
27 "measTimestampUePrbUsage" : TS1,
28 "measPeriodUePrbUsage" : Int,
31 "measTimestampUePdcpBytes" : TS2,
32 "measPeriodUePdcpByes" : Int,
36 "cellMeasurements" : [
39 "measTimestampPrbAvailable" : TS,
40 "measPeriodPrbAvailable" : Int,
41 "prbAvailableDL" : Int,
42 "prbAvailableUL" : Int,
43 "measTimestampPdcpBytes" : TS,
44 "measPeriodPdcpBytes" : Int,
45 "pdcpBytesDL" : 30000000,
46 "pdcpBytesUL" : 5000000,
47 "measTimestampRf" : TS,
57 "measTimestampPrbAvailable" : TS,
58 "measPeriodPrbAvailable" : Int,
59 "prbAvailableDL" : Int,
60 "prbAvailableUL" : Int,
61 "measTimestampPdcpBytes" : TS,
62 "measPeriodPdcpBytes" : Int,
63 "pdcpBytesDL" : 10000000,
64 "pdcpBytesUL" : 2000000,
65 "measTimestampRf" : TS,
75 "measTimestampPrbAvailable" : TS,
76 "measPeriodPrbAvailable" : Int,
77 "prbAvailableDL" : Int,
78 "prbAvailableUL" : Int,
79 "measTimestampPdcpBytes" : TS,
80 "measPeriodPdcpBytes" : Int,
81 "pdcpBytesDL" : 50000000,
82 "pdcpBytesUL" : 4000000,
83 "measTimestampRf" : TS,
98 The QP Xapp should send a prediction for both downlink and uplink throughput
99 as a JSON message via RMR with the following structure::
103 "CID1" : [10000000,2000000],
104 "CID2" : [30000000,5000000],
105 "CID3" : [50000000,4000000]