Patent classifications
H04K3/224
PROCÉDÉ DE TRAITEMENT D'UN SIGNAL RADIO PERTURBÉ PAR UN SIGNAL RADAR
The present description concerns a method of processing by a radio transmitter/receiver (12) of a radio signal (SR) comprising a telecommunications signal disturbed by pulses of a radar signal, the method comprising the steps of: estimating the instantaneous power of the pulses, estimating the ratio of the average power of the telecommunications signal to the instantaneous power of the radar pulses, and modifying the radio signal at the locations of the radar pulses when said ratio is smaller than a threshold.
JAMMING MITIGATION IN CBRS NETWORK
Various embodiments comprise systems, methods, architectures, mechanisms and apparatus for managing service provider network nodes in a converged network by inserting mobile network UE information into WiFi network communications such that a WiFi control entity may, in response to determining that the UE-inserted information is indicative of a jamming condition at a Citizens Broadband Radio Service Devices (CBSDs) providing mobile network services to the UE, communicate the identification of such UE to various provider equipment such that CBSDs experiencing jamming signals may be identified and mitigation steps taken.
Radar apparatus and method for avoiding radio interference
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.
RADIO-BASED DETECTOR AND METHOD TO PROTECT AGAINST UNPREDICTABLE INTERFERENCE IN INDUSTRIAL WIRELESS COMMUNICATIONS
A method, a node and a detector for detecting an interfering signal in a wireless network communication system comprising a network manager and several nodes, each node (202B) comprising a detector (204) for receiving input signals from at least one antenna, a delay component (205) for delaying a received input signal, and a receiver (206RX) for determining an energy pattern of expected received input signals. The detector (204) is configured to send an alarm signal to the receiver (206RX) depending on the presence or absence of an interfering signal from an interferer 203 and an active/inactive state of the receiver (206RX).
Interference avoidance for ranging and positioning of distributed devices
Disclosed are some examples of techniques for ranging and positioning of distributed devices to avoid local and/or periodic interference. For example, an initiator user equipment (UE) can broadcast a positioning reference signal (PRS) message of a current positioning session to responder UEs. One or more characteristics of PRS transmission associated with a first responder UE in the current positioning session can be determined. Based on the characteristic(s), interference with the first responder UE can be identified, which can cause the initiator UE to change the broadcast order of the responder UEs for a next positioning session.
Selective jamming detection based on comparing two or more signal measurement quantities
Methods implemented by a processor in a wireless device for detecting the presence in a network of a jammer or non-benign entity that targets physical layer channels in a communication network are disclosed. Various embodiments may determine a first signal measurement quantity based on a first physical layer communication, determine a second signal measurement quantity based on a second physical layer communication, determine a difference between the first signal measurement quantity and the second signal measurement quantity, determine whether the difference between the first signal measurement quantity and the second signal measurement quantity satisfies a threshold, determine whether a jammer or non-benign entity is present in the network in response to determining that the difference between the first signal measurement quantity and the second signal measurement quantity satisfies the threshold, and perform a mitigation operation in response to determining that a jammer or non-benign entity is present in the network.
Unstable jamming signal detection
A method for inhibiting jammed signal use includes: receiving a desired signal wirelessly at a receiver; receiving an undesired signal wirelessly at the receiver, the undesired signal varying in strength over time; and inhibiting measurement of the desired signal, or use of a measurement of the desired signal, based on a determination that the undesired signal is a jamming signal based on a variation of the undesired signal being indicative of jamming.
WIRELESS COMMUNICATION SYSTEM WITH DISCRIMINATION BETWEEN EXTRANEOUS RECEIVED SIGNALS
A wireless communication system having base stations and remotely located terminal units. The base stations and the remotely located terminal units communicate data over operational wireless communication links assigned to respective sub-channels having tiles separated by frequency and time. Detectors for analyzing extraneous received signals in unassigned tiles of the communication links discriminate between a first type of extraneous signals detected in unassigned tiles of one sub-frame and also detected in other unassigned tiles, and a second type of extraneous signals detected in the unassigned tiles but not detected in other unassigned tiles. The reaction of the base stations is different based on the type of extraneous signals.
RADIO JAMMING DETECTION
There is provided a method for a first network element of a wireless communication network, the method comprising: obtaining blanked subcarrier index data indicating one or more blanked subcarriers in a time-frequency resource grid; initiating reception of a transmission from a second network element of the wireless communication network on said time-frequency resource grid; causing performing an interference measurement on said one or more blanked subcarriers to obtain interference measurement data on said one or more blanked subcarriers; and outputting the interference measurement data for detecting a presence of radio jamming.
Wireless communication system with discrimination between extraneous received signals
A wireless communication system having base stations and remotely located terminal units. The base stations and the remotely located terminal units communicate data over operational wireless communication links assigned to respective sub-channels having tiles separated by frequency and time. Detectors for analysing extraneous received signals in unassigned tiles of the communication links discriminate between a first type of extraneous signals detected in unassigned tiles of one sub-frame and also detected in other unassigned tiles, and a second type of extraneous signals detected in the unassigned tiles but not detected in other unassigned tiles. The reaction of the base stations is different based on the type of extraneous signals.