Abstract: A method and system that separate thermal and background interference noise measurements from interference measurements can determine periodicity of an event using active percentage values. The active percentage value of an interference event may be determined based on unsupervised machine learning on a per-Recording Output Period (ROP) basis. The active percentage of the interference event may be used with other characteristics to help classify the interference source causing the interference. After measuring RF energy at a base station in the network at predetermined intervals over a plurality of consecutive first of time periods, for each time period, a method arranges binned values of the measured energy into at least one cluster, determines whether each cluster of the at least one cluster represents noise or interference, and characterizes the interference, and the method indicates a source of the interference.

Abstract: A field interference investigation tool (FIIT) cooperates with a spectrum analysis system to identify the location of a source of non-cellular interference to a cellular telecommunications network. The FIIT may be provided with one or more characteristic of the interference that is used to confirm that interference detected by the FIIT device is relevant to the telecommunications system.

Abstract: Interference caused by passive intermodulation (PIM) can be automatically detected at receivers in a wireless telecommunications network, and the accuracy of PIM detection can be increased by de-weighting or ignoring time slots in which non-PIM interference is detected at a target receiver.

Abstract: A field interference investigation tool (FIIT) cooperates with a spectrum analysis system to identify the location of a source of non-cellular interference to a cellular telecommunications network. The FIIT may be provided with one or more characteristic of the interference that is used to confirm that interference detected by the FIIT device is relevant to the telecommunications system.

Abstract: Tropospheric ducting can cause interference to a wireless telecommunications network from a remote source that would not normally cause such interference to the network. Interference from tropospheric ducting can be determined by analyzing tropospheric ducting factors which, individually or in combination, indicate interference from tropospheric ducting. Future tropospheric ducting interference events can be predicted using forecast data and data from past events.

Abstract: Anomalies at nodes of a wireless network can be detected by receiving performance measurement (PM) data for a plurality of nodes in the wireless telecommunications network, accessing sets of binned data of the PM data for each node of the plurality of nodes, comparing at least one characteristic of the binned data for each node to at least one of a threshold value and the binned data for another node of the plurality of nodes, and determining whether an anomaly is present at each of the plurality of nodes based on a result of the comparison.

Abstract: Tropospheric ducting can cause interference to a wireless telecommunications network from a remote source that would not normally cause such interference to the network. Interference from tropospheric ducting can be determined by analyzing tropospheric ducting factors which, individually or in combination, indicate interference from tropospheric ducting. Future tropospheric ducting interference events can be predicted using forecast data and data from past events.

Abstract: This disclosure provides a method and system that isolate non-seasonal components of network measurements from the seasonal components and compare the non-seasonal components to determine cause and effect relationships between various network nodes, to determine whether an event at a first node is experienced at a second node, and/or to characterize and localize a source of interference.

Abstract: A method of detecting downlink interference in a communications system may include selecting a set of user equipment for measuring interference and generating a downlink interference neighbor list for some or all of the user equipment in the set. Empty resource blocks that are common to base stations on each downlink interference neighbor list are identified, and signals that are received by the set of user equipment during the empty resource blocks are analyzed to detect interference. Certain aspects of the method may be practiced before or after an interference detection period. A system for detecting downlink interference is also provided.

Abstract: Interference caused by passive intermodulation (PIM) can be automatically detected at receivers in a wireless telecommunications network, and the accuracy of PIM detection can be increased by de-weighting or ignoring time slots in which non-PIM interference is detected at a target receiver.

Abstract: Anomalies at nodes of a wireless network can be detected by receiving performance measurement (PM) data for a plurality of nodes in the wireless telecommunications network, accessing sets of binned data of the PM data for each node of the plurality of nodes, comparing at least one characteristic of the binned data for each node to at least one of a threshold value and the binned data for another node of the plurality of nodes, and determining whether an anomaly is present at each of the plurality of nodes based on a result of the comparison.

Abstract: A method for coordinating execution of functions within a self-organizing network is disclosed, the network including a plurality of network parameters, a controller, a locking mechanism having a processor and a memory and being in communication with the controller, and a plurality of modules configured for operating on the network parameters, wherein each of the plurality of modules is assigned a corresponding priority. The method includes receiving a request from at least one of the modules for a lock, and providing the lock to the module having a highest priority level relative to the plurality of modules that requested a lock. The method further includes receiving a request at the locking mechanism from the module having the lock, and enabling the module having the lock to make changes to a network parameter of the plurality of network parameters, wherein the changes include at least one of steady-state changes, transient changes, and provisional changes.

Abstract: This disclosure provides a method and system that isolate non-seasonal components of network measurements from the seasonal components and compare the non-seasonal components to determine cause and effect relationships between various network nodes, to determine whether an event at a first node is experienced at a second node, and/or to characterize and localize a source of interference.

Abstract: Interference caused by passive intermodulation (PIM) can be automatically detected at receivers in a wireless telecommunications network, and the accuracy of PIM detection can be increased by de-weighting or ignoring time slots in which non-PIM interference is detected at a target receiver.

Abstract: A method for a cellular telecommunications network includes selecting first and second source cells that are co-sited cells associated with first and second antennas, respectively, identifying first neighbor cells of the first cell and second neighbor cells of the second cell, determining that an antenna feed for the second cell is feeding the first antenna by comparing locations of the first neighbor cells to a pointing direction of the first antenna.

Abstract: A method for performing Carrier Aggregation (CA) using spectrum shared between an incumbent user and a telecommunications network includes establishing a primary cell (PCell) for the secondary user in a portion of radio spectrum that is exclusively licensed to the telecommunications network, establishing a secondary cell (SCell) for the telecommunications network in a portion of the shared spectrum that is shared with the incumbent user, receiving schedule data for the incumbent user at a controller in communication with the incumbent user and a transmitter for the PCell and the SCell, scheduling transmissions for the PCell and the SCell to avoid interference to the incumbent user, and transmitting the scheduled transmissions through the PCell and the SCell using Carrier Aggregation (CA). Accordingly, one or more SCell in shared spectrum may be aggregated with a PCell in dedicated spectrum.

Abstract: A method for a cellular telecommunications network includes selecting first and second source cells that are co-sited cells associated with first and second antennas, respectively, identifying first neighbor cells of the first cell and second neighbor cells of the second cell, determining that an antenna feed for the second cell is feeding the first antenna by comparing locations of the first neighbor cells to a pointing direction of the first antenna.

Abstract: Transmitter localization and signal mapping may be accomplished by receiving measurement data from a plurality of nodes, the measurement data including a signal strength value and a geographic location for the signal strength value, triangulating the plurality of measurements using triangulation, and establishing at least one contour representing a level of signal strength. A system may receive measurement data from a plurality of user equipment, and use that data to localize an interference source and create a contour map.

Abstract: A method for sharing spectrum between a primary user and a secondary user includes receiving a signal transmitted by the primary user at a first network equipment of the secondary user, determining a first attenuation coefficient for the first network equipment, estimating interference from the first network equipment at a receiver of the primary user, and adjusting parameters of the first network equipment.

Abstract: Interference may be detected in a cellular network by receiving signals at a target base station in a quiet resource block in which no uplink transmissions to the target base station are scheduled to occur, identifying a plurality of user equipment attached to base stations neighboring a target base station as interfering user equipment, reconstructing signals transmitted by the interfering user equipment, removing the reconstructed signals from the signals received by the target base station in the quiet resource block, and determining interference in the signals from which the reconstructed signals are removed. Detected interference data can be used to create an interference cancelling receiver.