Abstract: Disclosed is a method for managing a cellular network that includes receiving information about a plurality of coverage cells in the cellular network and location coordinates of each coverage cell; generating a triangulation diagram corresponding to the location coordinates of each coverage cell; identifying for a target mapped cell, corresponding to a target coverage cell, neighbouring mapped cells having a shared boundary in the triangulation diagram; determining a length of the shared boundary between the target mapped cell and each one of the neighbouring mapped cells; assigning a ranking to each one of the neighbouring mapped cells based on the corresponding length of the shared boundary with the target mapped cell; and generating a selected neighbour list for the target coverage cell based on the ranking of the corresponding neighbouring mapped cells.

Abstract: A computer implemented method for controlling call capacity in a mobile network. The method includes: activating a mass event mode in a first cell of a first base station, wherein the first cell is a high frequency band cell, and wherein operating in the mass event mode comprises: checking if any low frequency band cells are available in a first sector served by the first cell; and responsive to detecting that one or more low frequency band cells are available, switching, at least some, voice call connections of the users of the first cell to at least some of the available low frequency band cells.

Abstract: A computer implemented method for analyzing operation of cells of a communications network is provided.

Abstract: A computer implemented method for optimizing directions of antennas of a base station of a communications network is provided. The method includes receiving antenna sector configuration data with sector information of each antenna and an azimuth angle of a main antenna direction of each antenna; receiving performance indicators of multiple subsectors of each antenna sector; calculating a cost function value indicating inter-sector impact between neighboring subsectors of adjacent sectors based on the performance indicators for the current antenna configuration and for at least one other possible antenna configuration; and identifying an antenna configuration yielding minimum cost function value of the calculated values as an optimized antenna configuration.

Abstract: A computer implemented method for analysing antenna directions in a communications network. The method includes at least obtaining network related data; calculating a characteristic user direction of a first cell of a first base station; calculating a difference between the characteristic user direction and the antenna azimuth direction of the first cell; and responsive to detecting that the calculated difference is greater than a pre-set threshold angle, indicating an anomaly in the first cell.

Abstract: A method, apparatus and computer program are disclosed for fixed communication line malfunction detection and recovery, including: monitoring states of a plurality of fixed communication lines; extrapolating future states of the plurality of fixed communication lines; determining a recovery group having as members any of the plurality of fixed communication lines having future states extrapolated to decline below a predetermined minimum quality threshold; and causing initiation of recovery action for each member of the recovery group before the extrapolated decline below the predetermined minimum quality threshold.

Abstract: Analyzing measurement results of a target system. The analysis is performed by receiving a first matrix including first measurement results of the target system; training a matrix decomposition model with the first matrix to obtain a third matrix of normal or stable measurement results and a fourth matrix of anomalous or unstable measurement results; receiving a second matrix including second measurement results of the target system, wherein the second measurement results are later measurement results compared to the first measurement results; selecting from the third matrix a subset that matches with the second matrix; subtracting the selected subset from the second matrix to obtain a fifth matrix; outputting the fifth matrix or information derived from the fifth matrix for the purpose of evaluating performance of the target system.

Abstract: A method for evaluating effect of a change in a communications network includes receiving a first set of performance indicator values. measured over a first period of time before the change in the communications network; receiving a second set of performance indicator values with performance indicator values measured over a second period of time after the change in the communications network; comparing the first set and the second set to evaluate the effect of the change; determining a performance threshold based on the performance indicator values of the first set; determining a first performance ratio value based on the performance indicator values of the first set and the performance threshold; determining a second performance ratio value based on the performance indicator values of the second set and the performance threshold and providing output based on the first performance ratio value and the second performance ratio value.

Abstract: A computer implemented method for analyzing operation of a cell of a communications network includes collecting data with measurement samples of signal level performance indicators from multiple cells of the communications network; calculating a characteristic value for a signal level performance indicator for a first cell type based on the collected data, wherein a part of the best measurement samples of the signal level performance indicator of the first cell type are taken into account in the calculation of the characteristic value; calculating a difference between the calculated characteristic value and a measurement sample of signal level performance indicator of a first cell of the first cell type; and providing output information indicating that an antenna system of the first cell is operating incorrectly in response to detecting that the calculated difference is greater than a preset threshold.

Abstract: A computer implemented method for controlling a communications network. The method includes obtaining, from the network, cell identifiers, remote electrical tilt, RET, equipment identifiers, link data comprising information about links between cells and RET equipment, and network configuration data, and, from a data storage, network planning data; finding a first cell, if any, missing a link to a RET equipment; searching based on comparing the network configuration data and the network planning data to which RET equipment, if any, the first cell should be linked, and responsive to detecting that the first cell and a first RET equipment should be linked, forming a link between the first cell and the first RET equipment; updating the link data with information comprising the formed link, if any; and using the updated link data in network control operations.

Abstract: A computer implemented method of monitoring a communication network. The method includes obtaining first information related to remote electrical tilt configurations deployed in the communication network; obtaining second information related to cell documentation; comparing the first and second information to identify mismatches between the first and second information, if any; and outputting an alarm concerning mismatches identified as a result of the comparison.

Abstract: A computer implemented method for optimizing directions of antennas of a base station of a communications network is provided. The method includes receiving antenna sector configuration data with sector information of each antenna and an azimuth angle of a main antenna direction of each antenna; receiving performance indicators of multiple subsectors of each antenna sector; calculating a cost function value indicating inter-sector impact between neighboring subsectors of adjacent sectors based on the performance indicators for the current antenna configuration and for at least one other possible antenna configuration; and identifying an antenna configuration yielding minimum cost function value of the calculated values as an optimized antenna configuration.

Abstract: A computer implemented method for speech recognition from an audio signal includes: obtaining initial values for silence detection parameters including: a lead period; a threshold amplitude; and a terminal period. Detect an amplitude of the audio signal at a first time T1 of the audio signal. Optionally adjusting the threshold amplitude based on the detected amplitude. Starting the speech recognition from a second time T2 of the audio signal. Starting silence detection from the audio signal when the lead period has elapsed after the second time T2 including: responsive to detecting an amplitude below the threshold amplitude for a duration of the terminal period, terminating the speech recognition and the silence detection at a third time T3 of the audio signal and adjusting the silence detection parameters based on the detected amplitude changes of the audio signal between the first time T1 and the third time T3.

Abstract: A computer implemented method for automated configuration deployment in network operations systems of a communication network. The following is performed: receiving a start deployment request, wherein the start deployment request includes identification of a target item and a work definition; starting a process corresponding to the work definition; deleting from the network operations systems any already existing configuration concerning the target item; fetching new configuration for the target item; and deploying the new configuration in the network operations systems.

Abstract: A method, apparatus and computer program are disclosed for fixed communication line malfunction detection and recovery, including: monitoring states of a plurality of fixed communication lines; extrapolating future states of the plurality of fixed communication lines; determining a recovery group having as members any of the plurality of fixed communication lines having future states extrapolated to decline below a predetermined minimum quality threshold; and causing initiation of recovery action for each member of the recovery group before the extrapolated decline below the predetermined minimum quality threshold.

Abstract: A computer implemented method for speech recognition from an audio signal includes: obtaining initial values for silence detection parameters including: a lead period; a threshold amplitude; and a terminal period. Detect an amplitude of the audio signal at a first time T1 of the audio signal. Optionally adjusting the threshold amplitude based on the detected amplitude. Starting the speech recognition from a second time T2 of the audio signal. Starting silence detection from the audio signal when the lead period has elapsed after the second time T2 including: responsive to detecting an amplitude below the threshold amplitude for a duration of the terminal period, terminating the speech recognition and the silence detection at a third time T3 of the audio signal and adjusting the silence detection parameters based on the detected amplitude changes of the audio signal between the first time T1 and the third time T3.

Abstract: A computer implemented method of handling threshold value of an antenna performance parameter of an antenna of a telecommunication network. A default antenna performance parameter threshold value of the antenna is obtained; a second antenna performance parameter threshold value for the antenna is determined based on the default antenna performance parameter threshold value and loss information related to the antenna, or based on gradually testing antenna performance parameter threshold values; and the second antenna performance parameter threshold value is taken into use for the antenna.

Abstract: A computer implemented method for energy savings management for cells of a sector or a base station of a communication network. The sector or base station has co-located cells that operate on different frequency bands. The method is performed by obtaining a default energy savings plan that calls for fully shutting down at least one of the cells for a first time period and provides a first amount of energy savings; evaluating energy savings achievable by using partial shutdown in cells and determining a second time period of partial shutdown that is needed for achieving the first amount of energy savings; obtaining a third time period that is usable for energy savings actions; and choosing to use partial shutdown in the cells, if the second time period is shorter than the third time period, and else choosing to use the default energy saving plan.

Abstract: A computer implemented method for evaluating effect of a change made in a communication network. The method is performed by comparing values of the performance indicator in a cell of interest before and after the change to obtain a first comparison result; comparing values of the performance indicator in a set of reference cells before and after the change to obtain a second comparison result; and evaluating the effect of the change made in the communication network based on difference between the first comparison result and the second comparison result.

Abstract: A computer implemented method of monitoring and controlling a target system, such as a communication network or an industrial process. The method includes receiving information about anomalies in operation of the target system detected by an automated anomaly detection mechanism; automatically determining certainty characteristics of the detected anomalies; submitting detected anomalies to expert evaluation in priority order determined based on the certainty characteristics; and adjusting the determination of certainty characteristics of the detected anomalies and/or the automated anomaly detection mechanism based on results of the expert evaluation.