Abstract: A computer-implemented method and apparatus for monitoring the performance of a plurality of network nodes interconnected in a multi-hop arrangement using at least one node performance assessment threshold is described. A plurality of data sets is obtained. A data set comprises a respective value of a performance metric for each of the plurality of network nodes. Each of the plurality of data sets is classified as normal or abnormal by comparing the respective values of the performance metric of each of the plurality of network nodes to a corresponding normality threshold, thus providing a plurality of classified data sets. The plurality of classified data sets is processed using a machine-learning algorithm in order to derive, for at least one network node of the plurality of network nodes, a node performance assessment threshold indicative of a value of the performance metric of the at least one node at which the plurality of network nodes has a predetermined likelihood of being classified as normal.

Abstract: The present disclosure relates to a method of controlling allocation of mobile devices (12-23) to frequency bands in a radio site (10), and a device (11) performing the method. In an aspect, a method of a radio base station (11) of controlling allocation of mobile devices (12-23) to frequency bands in a radio site (10) is provided. The method comprises estimating (S101) power consumption of the radio base station (11) caused by radio traffic of the mobile devices (12-23) in each frequency band of the radio site (10), determining (S102) whether or not power consumption of the radio base station (11) is decreased by reallocating at least one of the mobile devices (12-23) from one frequency band to another frequency band, while not exceeding a power headroom limit of said another frequency band, and if so reallocating (S103) said at least one mobile device from said one frequency band to said another frequency band.

Abstract: A method for providing frequency balancing in a power network grid by an RBS of a radio communication network. The RBS includes one or more power supply units, PSUs, connected to the power network grid. The method includes detecting a deviation of a power network grid frequency measured in a PSU of the one or more PSUs, the power network grid frequency is measured upstream of a power factor correction, PFC, unit of the PSU, deactivating the one or more PSU in response to the detected deviation, determining one or more further PSU to be deactivated based on the detected deviation, the RBS is in a first frequency containment reserve, FCR, zone and the one or more further PSU are in a second FCR zone, other than the first FCR zone, and sending a deactivation indication to the determined one or more further PSU.

Abstract: A method performed by a control node for a radio access network. The control node may select an energy source from a plurality of energy sources connected to a base station based on selecting an energy rate of one of the energy sources correlated in time with a radio traffic power usage of the base station. The selection may be made from a plurality of energy rates for the plurality of energy rates correlated in time for each energy source with a radio traffic power usage of the base station. The selected energy rate may improve at least one operating parameter of the selected energy source. The control node may activate the selected energy source for use by the base station. A further method performed by a global control node may be provided.

Abstract: A wireless device, network node and network management node are disclosed. The wireless device, network node and management node may cooperate to facilitate monitoring of the wireless device and detection of an incident involving a user of the wireless device. The wireless device is operable to connect to a network and comprises processing circuitry configured to cause the wireless device to enter an enhanced monitoring mode, receive, from a network node, configuration information specifying a measuring configuration for measuring signal strength, and measure signal strength in accordance with the received configuration information.

Abstract: A method and power control unit for supplying electric power to a first radio unit of a network node in a wireless network. The power control unit obtains a scheduled power demand related to an amount of electric power required in the first radio unit for transmissions scheduled in an imminent time interval such as a resource block or subframe. Then, electric power is supplied to the first radio unit from a power supply unit if the power demand does not exceed a power threshold, or from the power supply unit and a supplementary power source if the power demand exceeds the power threshold. The supplementary power source may comprise a battery that can be connected or disconnected for successive time intervals depending on the scheduled power demand which may fluctuate greatly depending on the first radio unit's transmissions.

Abstract: Methods, nodes, computer programs and communication networks are disclosed. The disclosure provides a method performed by a network node for controlling traffic in a communications network, the communications network comprising a wireless access node adapted to serve a plurality of wireless devices. The method comprises obtaining network operation data for at least one of the plurality of wireless devices, the network operation data comprising location of the respective wireless device and performance data correlated with the location, the network operation data being indicative of a plurality of attributes corresponding to the operation of the respective wireless device in the communications network. The method also comprises grouping the at least one wireless device of the plurality of wireless devices by partitioning the network operation data into one or more service clusters wherein each service cluster defines a geographical area based on the obtained location.

Abstract: Methods and devices optimize backup power management for network devices connected to backup power sources including two different batteries. Machine learning techniques are used to predict upcoming power outages affecting the network device based on power-related historic information and current conditions. A backup-power operation plan prescribing usage of the backup power sources during the predicted power outages is then generated. The backup-power operation plan schedules a battery among the backup power devices to be used at least twice without being recharged.

Abstract: A switched mode power supply, SMPS, which supplies an output voltage to a load, wherein a load current drawn by the load varies over time in accordance with load scheduling information. The SMPS comprises a voltage conversion circuit which converts an input voltage of the SMPS to the output voltage, and a controller which generates a control signal (SSW) based on a feedback signal indicative of the output voltage, and controls the voltage conversion circuit using the control signal to regulate the output voltage. The controller further generates a modified control signal (S?SW) using an indication of a change in the load current that is based on the load scheduling information, and controls the voltage conversion circuit using the modified control signal before the change in the load current occurs to suppress a voltage transient in the output voltage caused by the load current change.

Abstract: Systems and methods of controlling a component of a network node in a wireless communication system are presented herein. In one exemplary embodiment, a method by a network node (101, 200, 300, 560, 1400, 1721, 1741) comprises obtaining (401a) a current location (140) of a wireless device (119, 510) that is determined from measurements reported by the wireless device of a set of beam reference signals (121-126) transmitted by the network node or measurements performed by the network node of a signal (127) transmitted by the wireless device that is spatially related (129) to the corresponding beam reference signal received by the wireless device.

Abstract: A method of detecting a defect in a connecting member of a radio unit in a radio site includes applying an artificial radio traffic load to a first radio unit and at least a second radio unit, such that the radio traffic load experienced by the first and the second radio unit is at a same level, measuring power supplied to the first radio unit via a first connecting member and power supplied to the second radio unit via a second connecting member at an end of each connecting member terminating at a device configured to supply power to the radio units, and determining from the measured power and an expected nominal power loss of the first and the second connecting member if there is power loss in at least one of the first and the second connecting member indicating a defect.

Abstract: A method and radio base station for handling a power disturbance caused by a radio unit of the radio base station. The method comprises: obtaining scheduling information of data traffic associated with the RU; comparing the power disturbance with one or more first thresholds, wherein the power disturbance is caused by the RU adapted to handle the data traffic according to the scheduling information; and adjusting a switching frequency of a direct current to direct current, DC/DC, converter based on the comparison, wherein the DC/DC converter is comprised in the RU to power the RU.

Abstract: Methods and devices optimize backup power management for network devices connected to backup power sources including two different batteries. Machine learning techniques are used to predict upcoming power outages affecting the network device based on power-related historic information and current conditions. A backup-power operation plan prescribing usage of the backup power sources during the predicted power outages is then generated. The backup-power operation plan schedules a battery among the backup power devices to be used at least twice without being recharged.

Abstract: The present disclosure relates to a method of controlling power supply units (1-9) of a base station (10), and a device (20) performing the method. In an aspect, a method of a base station scheduling device (20) of controlling power supply units (1-9) of a base station (10) is provided. The method comprises acquiring (S102a-c) information indicating a value of voltage input to at least one of the power supply units (1-9) of the base station (10), determining (S103) from said value if the voltage input to said at least one of the power supply units (1-9) is sufficient, and if not determining (S104) power demand of the base station (10), and deactivating (S105) said at least one power supply unit, if remaining power supply units (1-9) is capable of supplying the demanded power.

Abstract: There is provided a system and a method for controlling a vehicle. A path is determined, to be followed by the vehicle between a starting location and an intended destination location. The vehicle is controlled to follow the determined path. An indication may be received from the vehicle of the presence of a potential difficulty in respect of the determined path. The method determines the source of any potential difficulty and interacts with the source thereby to re-configure at least one of the source and the vehicle to enable onward progress of the vehicle along the determined or an updated path. The system comprises a controller and a vehicle interface. The controller implements the method and interacts with the vehicle via the vehicle interface. The method and the system may control the vehicle to conduct a field service operation in respect of a network node of a wireless communications network.

Abstract: There is provided a radio access node (40) for use in a communication network (32), the radio access node (40) being associated with a local energy storage system (122) that is part of a distributed energy storage network, the radio access node (40) being adapted to monitor the operation of a power distribution network (118); in the event of a fault in the power distribution network (118), control the local energy storage system (122) to supply power to the power distribution network (118). A radio access node (40) for use in a communication network (32) is provided. The node (40) is able to locate a fault on a power distribution network (118) and to generate a map of at least a part of said power distribution network (118), indicating the location of the fault.

Abstract: A method and a coordinating node for providing at least one current analysis result relating to a link are disclosed. The coordinating node obtains a set of previous analysis results relating to at least one segment of the link. The coordinating node identifies a set of unreliable segments based on the set of previous analysis results and based on a condition for defining any segment as unreliable. The coordinating node performs a respective analysis of each unreliable segment of the set of unreliable segments to obtain a respective current analysis result for said each unreliable segment. Furthermore, the coordinating node sends, to the first node, the respective current analysis result. A corresponding computer program and a computer program carrier are also disclosed.

Abstract: Embodiments herein relate, in some examples, to an intermediate network node configured to operate in a communication network. The communication network comprises a requesting node and an executing network node comprising a computational graph model. The intermediate network node is configured with an imitation model. The imitation model is a limited version of the computational graph model, and the imitation model is a model requiring less computational resources to converge when compared to the computational graph model.

Abstract: A method for controlling allotment of power input between at least two PAs of a radio unit for data communication in a wireless communications network is provided. The radio unit has access to Direct Current (DC) power and Photovoltaic (PV) power. The amount of power to be transmitted out from each respective PA out of the at least two PAs established, and information related to the amount of PV power available is obtained. The allotment of power input of DC power and PV power between the at least two Pas is then controlled based on the established amount of power to be transmitted out from each respective PA out of the at least two PAs, and the obtained information related to the amount of PV power available.

Abstract: The present disclosure provides methods, apparatus and machine-readable mediums relating to power failure notifications in a communication network. One method performed by a network node comprises, in response to a determination that a power supply unit in a base station has failed, comparing an available power of one or more remaining operational power supply units in the base station with a predicted power usage of the base station to determine a power headroom. The method further comprises determining whether to generate an alert signal based on the power headroom.