US 12,231,292 B2
Network performance assessment
Tamas Borsos, Budapest (HU); Zsófia Kallus, Budapest (HU); Péter Kersch, Budapest (HU); and Peter Vaderna, Budapest (HU)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 18/000,856
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jun. 10, 2020, PCT No. PCT/IB2020/055437
§ 371(c)(1), (2) Date Dec. 6, 2022,
PCT Pub. No. WO2021/250445, PCT Pub. Date Dec. 16, 2021.
Prior Publication US 2023/0216737 A1, Jul. 6, 2023
Int. Cl. H04L 41/0823 (2022.01); H04L 41/0813 (2022.01); H04L 41/16 (2022.01); H04L 43/08 (2022.01)
CPC H04L 41/0823 (2013.01) [H04L 41/0813 (2013.01); H04L 41/16 (2013.01); H04L 43/08 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method for assessing network performance, the method comprising:
acquiring network measurements indicative of any changes in a network following a change to a configuration of the network and data indicative of one or more factors capable of causing the changes in the network, the one or more factors being independent of the change to the configuration of the network, wherein the change to the configuration of the network comprises a remote electrical tilt;
analysing the acquired network measurements and data to identify a contribution of the one or more factors to a key performance indicator, KPI, and a contribution of the change to the configuration of the network to the KPI, wherein the KPI comprises:
a bearer drop ratio;
a handover success ratio;
an inter-cell interference level;
an uplink signal strength;
a downlink signal strength; or
a signal quality measure;
the KPI being predicted by a machine learning model and is a measure of the network performance following the change to the configuration of the network, wherein the machine learning model receives as input the network measurements and the data; and
comparing the predicted KPI to a reference KPI to identify a difference, wherein:
the difference is indicative of the contribution of the one or more factors and the change to the configuration of the network to the KPI;
the contribution of the one or more factors to the KPI is the contribution of the one or more factors to the difference;
the contribution of the change to the configuration of the network to the KPI is the contribution of the change to the configuration of the network to the difference; and
for each of the one or more factors, identifying the contribution of that factor to the difference,
wherein the one or more factors comprise any one or more of:
one or more configuration changes outside the network;
one or more faults in the network;
one or more service layer descriptors;
one or more data sources outside the network;
a location of one or more user equipments in the network; and
one or more environmental events; and
wherein the data indicative of the one or more factors comprises data other than:
a bearer drop ratio;
a handover success ratio;
an inter-cell interference level;
an uplink signal strength;
a downlink signal strength; and
a signal quality measure.