Abstract: A method for locating a source of interference external to a wireless telecommunications network includes assigning first and second elevation values to each pixel in a grid of pixels that represents an area associated with a plurality of cellular antennas, and calculating at least one probability value that the source of interference external to the wireless telecommunications network is located at an associated pixel by calculating respective probability values for pixels in the grid using the first elevation value and the second elevation value of the associated pixel and vertical gain values for each of the plurality of cellular antennas.

Abstract: A method for locating a source of interference external to a wireless telecommunications network includes assigning first and second elevation values to each pixel in a grid of pixels that represents an area associated with a plurality of cellular antennas, and calculating at least one probability value that the source of interference external to the wireless telecommunications network is located at an associated pixel by calculating respective probability values for pixels in the grid using the first elevation value and the second elevation value of the associated pixel and vertical gain values for each of the plurality of cellular antennas.

Abstract: A method for classifying sources of interference provides Operations, Administration, and Management (OAM) data available in a wireless communication network to a trained machine learning model that outputs indications of the types of interference sources exhibited in the OAM data. The OAM data provided to the machine learning model may include per-Physical Resource Block (per-PRB) interference data for a cell, and may further include metadata corresponding to the configuration of the cell.

Abstract: A method for locating a source of interference external to a wireless telecommunications network includes establishing a grid of pixels that represents an area associated with a plurality of cellular antennas, assigning an elevation value to each pixel in the grid, determining a vertical gain for each of the plurality of cellular antennas, and determining respective probability values for pixels in the grid using the elevation values and the vertical gain, each of the respective probability values representing a probability that the source of interference external to the wireless telecommunications network is located at an associated pixel.

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: Time division duplexed (TDD) Cellular networks can experience interference in receive times from downlink transmissions by aggressor cells after network changes, or from tropospheric ducting. The interference from the aggressor cells can be efficiently mitigated by determining that the victim cell is being affected by such interference, identifying the aggressor cells, and selectively increasing the guard time between the aggressor cells and the victim cell.

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: A method for localizing interference uses data available to wireless communication networks to determine probabilities of a source of external interference being located at a plurality of predetermined locations. In a heterogeneous network, data from sites using omnidirectional antennas can be combined with data from multi-sector sites to accurately locate a source of interference.

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: A method for locating a source of interference external to a wireless telecommunications network includes establishing a grid of pixels that represents an area associated with a plurality of cellular antennas, assigning an elevation value to each pixel in the grid, determining a vertical gain for each of the plurality of cellular antennas, and determining respective probability values for pixels in the grid using the elevation values and the vertical gain, each of the respective probability values representing a probability that the source of interference external to the wireless telecommunications network is located at an associated pixel.

Abstract: Time division duplexed (TDD) Cellular networks can experience interference in receive times from downlink transmissions by aggressor cells after network changes, or from tropospheric ducting. The interference from the aggressor cells can be efficiently mitigated by determining that the victim cell is being affected by such interference, identifying the aggressor cells, and selectively increasing the guard time between the aggressor cells and the victim cell.

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: A method for determining the location of a source of interference applies data in the vertical dimension to determine the probability of the source being located at various locations, or pixels. The data in the vertical dimension may be used to determine three-dimensional antenna gain for antenna-pixel pairs, and to determine whether a line of sight exists between the antenna-pixel pairs. Probability values are determined for the pixels using one or both of the line of sight information and antenna gain values.

Abstract: A method for localizing interference uses data available to wireless communication networks to determine probabilities of a source of external interference being located at a plurality of predetermined locations. In a heterogeneous network, data from sites using omnidirectional antennas can be combined with data from multi-sector sites to accurately locate a source of interference.

Abstract: A method for determining the location of a source of interference applies data in the vertical dimension to determine the probability of the source being located at various locations, or pixels. The data in the vertical dimension may be used to determine three- dimensional antenna gain for antenna-pixel pairs, and to determine whether a line of sight exists between the antenna-pixel pairs. Probability values are determined for the pixels using one or both of the line of sight information and antenna gain values.

Abstract: A method for localizing interference uses data available to wireless communication networks to determine probabilities of a source of external interference being located at a plurality of predetermined locations.

Abstract: A method performed by a centralized controller in a wireless communications network, the method including identifying at least one mobile relay network element in a coverage area of the network, communicating with the at least one mobile relay network element, and dynamically adjusting at least one radio parameter of a corresponding one of the at least one mobile relay network element in response to a predetermined event.

Abstract: A method for a cellular telecommunications network includes selecting a target cell in the cellular telecommunications network, retrieving automatic neighbor relations (ANR) data including neighbor cell list information for a plurality of cells in the network, determining, from the ANR data, first and second cells that are neighbors to the target cell and use a same Physical Cell Identifier (PCI), and at least one of the first and second cells is an inbound neighbor to the target cell, determining that PCI confusion is present between the first and second cells with respect to the target cell, and resolving the PCI confusion.

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 performing a modulo operation on a physical cell identifier (PCI) of a target cell to determine a first PCI mod value, determining first tier neighbors of the target cell, determining that at least one of the first tier neighbors uses a PCI that has a PCI mod value that is the same as the first PCI mod value, comparing a number of handover attempts between the target cell and the at least one first tier neighbor with the first PCI mod value to a first threshold value, and when the number of handover attempts exceeds the threshold value, replacing the PCI of the target cell with a PCI with a second PCI mod value different from the first PCI mod value.