US 12,218,803 B2
Method for cell issue forecasting
Michal Horemuz, Stockholm (SE); Philipp Frank, Madrid (ES); Raul Martin Cuerdo, Madrid (ES); Chin Lam Eng, Tokyo (JP); and Javier Rasines, Solna (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/795,975
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Feb. 24, 2021, PCT No. PCT/EP2021/054501
§ 371(c)(1), (2) Date Jul. 28, 2022,
PCT Pub. No. WO2021/170613, PCT Pub. Date Sep. 2, 2021.
Claims priority of provisional application 62/980,477, filed on Feb. 24, 2020.
Prior Publication US 2023/0062037 A1, Mar. 2, 2023
Int. Cl. H04L 41/147 (2022.01); H04W 24/02 (2009.01)
CPC H04L 41/147 (2013.01) [H04W 24/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method of forecasting performance issues associated with cells in a wireless network, the method performed by a network optimization function associated with the wireless network and comprising:
for each of a plurality of cells in the wireless network, obtaining first time-series data representing a plurality of key performance indicators (KPIs) at a first plurality of past time points;
applying a multi-layer forecasting model to the first time-series data to determine second time-series data representing the plurality of KPIs for each of the plurality of cells at a second plurality of future time points, wherein applying the multi-layer forecasting model to the first time-series data comprises:
for each particular KPI, applying a first layer to predict a linear pattern in the first time-series data;
for each particular KPI, applying a second layer to predict a periodic pattern in the first time-series data; and
applying a third layer to predict further patterns in the plurality of KPIs based on the first time-series data, the predicted linear patterns, and the predicted periodic patterns; and
based on the second time-series data, determining respective probabilities of occurrence for a respective plurality of different performance issues, associated with the plurality of cells, during one or more future time periods that include the second plurality of future time points.