The present disclosure provides an over-the-air measurement system for testing a device under test. The over-the-air measurement system includes at least two orthomode transducers and at least two antennas. Each of the antennas is connected to a dedicated orthomode transducer respectively, thereby establishing at least two measurement modules. The at least two orthomode transducers are rotated relative to each other, thereby providing different measurement polarizations of the at least two measurement modules with respect to a common reference plane.

The present disclosure provides an over-the-air measurement system for testing a device under test. The over-the-air measurement system includes at least two orthomode transducers and at least two antennas. Each of the antennas is connected to a dedicated orthomode transducer respectively, thereby establishing at least two measurement modules. The at least two orthomode transducers are rotated relative to each other, thereby providing different measurement polarizations of the at least two measurement modules with respect to a common reference plane.

A method and a network node (110) for providing an RF model of a telecommunications system (100) are disclosed, The network node (110) configures (A030) reporting of call traces indicative of: a first type of measurement event relating to serving cell with a first time-to-trigger value and a first threshold value, and a second type of measurement event relating to neighbouring cells with respect to the serving cell with a second time-to-trigger value and a second threshold value, wherein the first time-to-trigger value is greater than the second time-to-trigger value. The network node (110) receives (A090) a respective call trace representing a firstly reported measurement event of the first or second type for a connection in said each cell. Moreover, the network node (110) processes (A100) the respective call trace to extract an Reference Signal Received Power “RSRP” or to extract a Carrier-To-Interferer ratio “C/I”. Next, the network node (110) forms (A110, A120) a first distribution of RSRP and a second distribution of C/I, representing an RF model. The RF model is fed to a network management tool (140) for managing performance of the telecommunications system (100). A corresponding computer program and a carrier therefor are also disclosed.

A communication system transmits data between communication nodes over a data transmission path. The system collects data from at least two different sources to create a fused data stream that is used as the input to a model for determining a frequency at which to transmit the data by skywave propagation. The data is transmitted between the communication nodes at the frequency determined by the model.

A communication system transmits data between communication nodes over a data transmission path. The system collects data from at least two different sources to create a fused data stream that is used as the input to a model for determining a frequency at which to transmit the data by skywave propagation. The data is transmitted between the communication nodes at the frequency determined by the model.

An aspect of the present invention provides a shield factor calculation apparatus including: a point cloud data selection unit that selects point cloud data that satisfies a condition from point cloud data acquired in a multiple-passing area that is a region through which a mobile body that acquires the point cloud data indicating a shielding object in a space between a transmitting station and a receiving station has passed a predetermined number of times or more from among areas through which the mobile body has passed; a voxel splitting unit that splits a Fresnel zone into a plurality of voxels with sizes in accordance with positions in the Fresnel zone, based on information indicating an acquisition condition when the point cloud data selected by the point cloud data selection unit is acquired and information indicating an acquisition condition when the point cloud data is acquired in an area other than the multiple-passing area; a calculation unit that calculates a shield factor of a radio wave based on a position, a shape, and a size of a voxel at a position indicated by at least either the point cloud data selected by the point cloud data selection unit or the point cloud data acquired in the area other than the multiple-passing area, from among the plurality of voxels.

An alert that is generated by a first orchestrator associated with a first subsystem or received from one or more distributed orchestrators that are associated with one or more corresponding subsystems is analyzed. The alert is triggered by a change in behavior determined by a behavioral analysis algorithm associated with the first orchestrator or corresponding behavior analysis algorithms associated with the one or more distributed orchestrators. It is determined whether an alert is indicative of a false positive based on an objective associated with the first orchestrator, an algorithm associated with the first orchestrator and one or more constraints associated with the first orchestrator. The alert is filtered in response to determining that the alert is indicative of the false positive.

An alert that is generated by a first orchestrator associated with a first subsystem or received from one or more distributed orchestrators that are associated with one or more corresponding subsystems is analyzed. The alert is triggered by a change in behavior determined by a behavioral analysis algorithm associated with the first orchestrator or corresponding behavior analysis algorithms associated with the one or more distributed orchestrators. It is determined whether an alert is indicative of a false positive based on an objective associated with the first orchestrator, an algorithm associated with the first orchestrator and one or more constraints associated with the first orchestrator. The alert is filtered in response to determining that the alert is indicative of the false positive.

A geolocation-based data sharing system and method which enables end users to connect and share electronic data of any form based on the users' interaction with geolocation points established by other users. The systems and method can be used to enable end users to share data, text, photos, music, etc. when a second user positions himself or herself in a position assigned by a first user.

A method of interference measurement includes performing interference measurement with interference measurement resource. The interference measurement resource may be a subset of resources for reference signal (RS). Measurements for the RS in the NR system are improved.