A system includes at least one reception unit installed in an aircraft and configured for tracking satellites of the satellite navigation system of the GNSS type. The system includes a generation unit for generating an expected number corresponding to the number of satellites that the reception unit is expected to track, a detection unit including a comparison part for comparing the expected number with a tracked number corresponding to the number of satellites that the reception unit is actually tracking and a decision part for detecting a jamming, as a function of the result of the comparison made by the comparison part and transmitting detection data in the event of detection, and a transmission unit configured to transmit jamming detection data to at least one user device, the system making it possible to detect a jamming of a GNSS system in an automatic and reliable manner.

The present disclosure relates to the area of telecommunication, and in particular to methods for reporting network dysfunction in a wireless communication network (1). According to a first aspect of embodiments herein it is provided a method, for use in a wireless communication device (10), for reporting network dysfunction. The method comprises obtaining information defining radio communication properties (e.g. use of a relaying wireless communication device (30)) for use when reporting network dysfunction in a wireless communication network (1). The method further comprises detecting network dysfunction, and sending a report indicating the detected network dysfunction e.g. to a radio network node 20 using the obtained radio communication properties. The disclosure also relates to a corresponding radio network node (20) and wireless communication devices (10), (30) and to a computer program for implementing the proposed method.

This application relates to wireless networks and more specifically to systems and methods for determining the location of distributed radar detectors and selecting available channels free of radar signals from a plurality of radio frequency channels. One embodiment includes a cloud DFS super master and a radar detector communicatively coupled to the cloud DFS super master. The cloud DFS super master is programmed to receive the results of the scan for a radar signal from the radar detector and to generate integrated client device geolocation information. The cloud DFS super master is also programmed to determine a location for the radar detector based at least on the integrated client device geolocation information, and determine a radio channel free of the radar signal based at least on the location for the radar detector and the results of the scan for the radar signal.

A wireless communication terminal has a plurality of communicators, a radar detection circuit, a channel use confirmation circuit, a channel information acquisition circuit, a channel information notification circuit, a channel determination circuit, and a channel setting circuit. First communication channel information indicates a data communication channel set in a communicator of a first peripheral terminal. Second communication channel information indicates a monitoring communication channel set in the communicator of the first peripheral terminal or a communication channel confirmed to be usable by the channel use confirmation circuit of the first peripheral terminal. The channel determination circuit determines a communication channel different from any of a first communication channel indicated by the first communication channel information and a second communication channel indicated by the second communication channel information as the data communication channel.

According to one embodiment, a radar apparatus includes a signal processing device that has a first circuit, a second circuit and a transmitter. The first circuit is configured to determine whether or not there is a radio interference based on a radio signal received via an antenna. The second circuit is configured to, when the first circuit determines that there is the radio interference, select a predetermined pulse pattern based on an avoiding function of a wireless communication device having the avoiding function of the radio interference, the predetermined pulse pattern being separately defined from a pulse pattern of transmission processing for operating a radar. The transmitter is configured to transmit from the antenna a radio signal matching the pulse pattern selected by the second circuit.

A securing interface apparatus to be inserted between a GNSS antenna and a first, unsecured, GNSS receiver fed by the antenna, for providing immunity against spoofing or jamming or interrupting of the timing provided by the first unsecured GNSS receiver. The securing interface apparatus comprises (a) a second GNSS receiver, fed by the antenna and including a local oscillator and being immune against spoofing or jamming of timing, for outputting trusted timing and the last GNSS data, the second GNSS receiver including a detection module which is adapted to analyze raw RF signals received from GNSS satellites and verify the signals integrity and authenticity (b) a GNSS Simulator, fed by the trusted timing and GNSS data, the GNSS Simulator is adapted to: as long as the received GNSS data is found authentic, allowing the received GNSS data to reach the input of the first, unsecured, GNSS receiver; upon detecting that the received GNSS data is not authentic, produce, using the output of the local oscillator and at least a portion of the last GNSS data, redundant simulated RF GNSS signals mimicking raw RF signals received from GNSS satellites; and transmit the redundant simulated RF GNSS to the input of the first unsecured GNSS receiver.

An apparatus for a low-power radar detection (LPRD) receiver is proposed in this disclosure. The LPRD receiver comprises an analog-to-digital converter (ADC) circuit configured to receive an analog dynamic frequency selection (DFS) signal associated with a DFS channel in a DFS frequency band to generate a digital DFS signal. The ADC circuit comprises a finite impulse response (FIR) filter circuit configured to sample the analog DFS signal at an FIR sampling rate determined based on a predetermined frequency plan associated with the DFS frequency band to generate a sampled DFS signal; and an ADC conversion circuit configured to convert the sampled DFS signal to the digital DFS signal at an ADC conversion rate that is lower than the FIR sampling rate.

A threat monitoring and vulnerability management system is disclosed. The system includes one or more sensors configured to scan a frequency spectrum of a project 25 (P25) network and to collect data on the P25 network. The system further includes a server coupled to the sensors and configured to receive the collected data from the plurality of sensors, compare the collected data with previously stored historical data to determine whether an anomaly exists within data patterns of the collected data, responsive to determining that the anomaly exists, determine at least one of: whether use of a cloned radio that mimics an authorized connection occurs, whether jamming of a radio frequency (RF) communication occurs, or whether jamming of a voice communication occurs within the P25 network by comparing the collected data with preset thresholds, and send a real-time alert to a dispatch and control console unit coupled to the server and the P25 network in response to determining that some of the collected data exceeds at least one of the preset thresholds, such that the dispatch and control console unit provides one or more corrective actions to the P25 network.

A method is described, carried out by a wireless communication device comprising a wireless communication interface, said interface being configured to operate selectively according to several operating modes comprising a first active operating mode and a second operating mode with reduced consumption relative to the first mode and enabling the reception of at least one type of transmission packet;

the device being subjected to a constraint of implementing an action that must be carried out continuously when the interface operates at an emission power greater than a threshold over a communication channel of a given type, the action being incompatible with the second mode;

the method comprising, to change from the first mode to the second mode,

a) in a first step, lowering the transmission power below the threshold;

b) in a second step, deactivating the action;

c) in a third step, activating the second mode.

The invention also relates to a method for changing from the second mode to the first mode and devices implementing the methods.

Some demonstrative embodiments include apparatuses, devices, systems and methods of radar detection. For example, an apparatus may include a first detector component to detect energy over a wireless communication channel; a second detector component to detect a signal over the wireless communication channel, and to determine at least a classification of the signal as a radar-type or a non-radar type; a storage component to store radar detection information corresponding to signals detected by the second detector component, the radar detection information including at least the classification of the signal and one or more characteristics of the signal; and a controller to activate the second detector component upon detection of the energy by the first detector component, the controller configured to cause a radar-detection analysis of the radar detection information corresponding to a predefined time period.