4643 results about "Wireless signal" patented technology

The invention relates to the technical field of wireless signal detection, and discloses a wireless anti-interference signal detection method, device and equipment and a storage medium, and the method comprises the steps: collecting a standardized interference feature vector through a multi-scene wireless signal receiving device; performing interference feature enhancement processing on the standardized interference feature vector to obtain an interference feature sample set; constructing a dual-array cooperative detection system comprising a passive detection array and an active detection array, and performing real-time monitoring to obtain dual-path interference signal monitoring data; performing spatial domain and time-frequency domain dual feature extraction and fusion processing on the dual-path interference signal monitoring data to obtain a comprehensive interference feature; the receiver filtering parameter matrix and the detection threshold vector of the double-array cooperative detection system are dynamically adjusted according to the comprehensive interference characteristics, the method can adapt to changes of different interference environments in a self-adaptive mode, comprehensive coverage of communication spectrums is achieved, and the wireless anti-interference monitoring range and the spectrum sensing capacity are greatly expanded.

Systems and methods are provided for multi-domain vulnerability assessment. An exemplary system includes a plurality of wireless signal detectors, wherein each of the wireless signal detectors is configured to detect wireless signals of a respective wireless signal protocol of a plurality of wireless signal protocols. The wireless signal detectors transmit the signal data to a data processor that classifies the plurality of devices based on the wireless signal data, determines one or more device vulnerabilities associated with the plurality of devices based on the classification of the plurality of devices, and determine a plurality of device risks for the plurality of devices based on the plurality of device vulnerabilities.

The invention discloses a signal processing method based on deep learning and adaptive filtering fusion. The method comprises the following steps: S1, collecting and preprocessing an original signal; s2, carrying out adaptive filtering; s3, constructing a deep neural network model to perform deep feature extraction on the filtered signal; s4, signal fusion and interference elimination are carried out; S5, a real-time closed-loop feedback mechanism is established, and dynamic parameter adjustment is carried out; s6, performing an end-to-end dynamic optimization process; s7, performing iterative updating and high-confidence sample judgment; and S8, processing a newly collected signal by using the trained adaptive filtering module and the deep neural network model, and generating a reconstructed signal through signal fusion. According to the method, through effective fusion of adaptive filtering and the deep neural network, accurate suppression and high-dimensional feature extraction of a multipath effect, nonlinear noise and transient interference in a complex wireless signal are realized, so that the precision, robustness and real-time performance of signal processing are remarkably improved.

Apparatuses, systems, and techniques that utilize a neural network to infer signal parameters to direct and transmit wireless signals. In at least one embodiment, one or more neural networks are trained, using reinforcement learning techniques, to infer a beam direction to be used by a first device to transmit a signal based, at least in part, on characteristics of another signal being transmitted by a second device.

Disclosed are a method and apparatus for transmitting and receiving a wireless signal in a wireless communication system. The method according to an embodiment of the present disclosure may comprise the steps of: receiving, from a base station, first configuration information including a list of TCI states, the list of TCI states providing a reference signal for a QCL for a downlink channel and / or a reference for determining an uplink transmission spatial filter for an uplink channel; receiving, from the base station, second configuration information related to a CORESET, a plurality of CORESETs, which have different CORESET full indexes, being configured by the second configuration information; and receiving DCI from the base station.

Apparatuses, systems, and techniques that utilize a neural network to jointly infer signal parameters to direct and transmit wireless signals. In at least one embodiment, one or more neural networks are trained, using reinforcement learning techniques, to infer hybrid beamforming parameters used by one or more devices to transmit wireless signals.

The present disclosure relates to a method and an apparatus for operating in a wireless communication system, the method comprising the operations of: receiving configuration information related to CSI prediction; and deriving predicted CSI for a second time point later than a first time point from CSI for the first time point, based on the configuration information, wherein based on the predicted CSI satisfying an event, actual CSI for the second time point, measured from a reference signal is transmitted, and wherein based on the predicted CSI not satisfying the event, CSI reporting for the second time point is dropped.

The invention discloses a wireless communication battery management system with a signal adaptive adjustment function, and relates to the field of wireless communication networks. The signal monitoring unit is used for monitoring parameter data of wireless signals in real time and transmitting the parameter data to the signal processing unit, and the signal processing unit comprises a multi-band antenna and a signal acquisition circuit; and the signal processing unit is connected to the signal monitoring unit and is used for receiving the parameter data of the wireless signal transmitted by the signal monitoring unit and carrying out filtering, noise reduction and enhancement processing on the signal through a preset signal processing algorithm. The distributed multi-band antenna design is combined with the automatic gain control technology, the signal receiving range is expanded, blind areas are reduced, the stability of signal collection in a complex environment is improved, signal multi-scale noise reduction is achieved through the wavelet transform algorithm, the signal quality trend is pre-judged in advance in combination with machine learning prediction, and the signal quality is improved. And the control unit is supported to pre-adjust the transmitting power and switch to a high-quality frequency band, so that the probability of communication interruption is reduced.

A signal for wireless transmission is modulated by converting a serial sequence of symbols in the time domain into parallel symbol streams, transforming the parallel symbol streams into the frequency domain, mapping the resulting frequency domain signals onto subcarriers, converting the mapped signals into the time domain and converting the parallel time-domain signals into a serial signal. The serial signal is subjected to chirping and is transmitted to a receiver after adding a cyclic prefix (CP). The receiver removes the CP from the signal and, after de-chirping the prefix-less signal, converts the signal into parallel signals. The parallel signals are converted into the frequency domain for channel estimation, equalisation, and subcarrier mapping of detected symbols. The mapped symbols are transformed into the time domain before converting them into a serial stream of symbols.

The invention provides a wireless signal detection and positioning method and system, and relates to the technical field of wireless communication, and the method comprises the steps: collecting signal characteristic parameters through a plurality of monitoring devices, constructing a three-dimensional time-frequency space matrix, carrying out envelope modulation to construct a primary function, carrying out iterative projection to obtain a reconstructed signal, and extracting a characteristic fingerprint through a high-order statistical moment; constructing a topological graph according to geographic distribution to calculate information entropy, and performing dynamic clustering fusion; a scene type is identified and a location is estimated in combination with historical data. The wireless signal detection accuracy and the positioning precision can be improved, and the method adapts to a complex electromagnetic environment.

The invention discloses an unmanned aerial vehicle multi-mode interference device based on a digital source, and relates to the technical field of electromagnetic security and protection. According to the unmanned aerial vehicle multi-mode interference device based on the digital source, airspace wireless signals are monitored in real time through multi-channel software defined radio SDR equipment, frequency hopping data of a target unmanned aerial vehicle are collected, and historical data traceability analysis is combined; backtracking the frequency hopping decision logic of the unmanned aerial vehicle by using a digital source, extracting a communication mode and predicting possible frequency hopping points in the future; in the interference implementation stage, a predictive interference strategy is adopted, when a target unmanned aerial vehicle hops to a predictive frequency band, directional high-power interference is triggered immediately, a communication link of the target unmanned aerial vehicle is blocked, the frequency hopping logic of the target unmanned aerial vehicle is invalid, the target unmanned aerial vehicle is forced to enter a blind frequency hopping state, and the communication stability is reduced; the communication mode of the target unmanned aerial vehicle is copied in combination with a signal mirroring technology, and a part of credible communication signals are forged to guide the target unmanned aerial vehicle to misjudge the optimal communication frequency, so that the target unmanned aerial vehicle enters a frequency band susceptible to interference by mistake, the communication capability is further reduced, and the interference effect is improved.

According to embodiments, provided is an antenna comprising: a substrate of a square shape including first to fourth corners; a radiation unit disposed on the substrate and including a first radiation unit and a second radiation unit that radiate a wireless signal; a first feed line that applies the wireless signal to the first radiation unit; a second feed line that applies the wireless signal to the second radiation unit and has an extension line that perpendicularly intersects with an extension line of the first feed line; and a ground portion disposed on the substrate and spaced apart from the radiation unit and having at least a portion of a boundary area including a step shape, wherein the ground unit includes a shared ground unit that is disposed diagonally from a first edge to a third edge, is located between the first radiation unit and the second radiation unit, and performs impedance matching of the first radiation unit and the second radiation unit.

An electronic device includes a first housing connected to a second housing having a protrusion configured to be seated on an ear. The electronic device also includes a printed circuit board, a wireless communication circuit, an antenna carrier disposed in internal space defined by the first housing and the second housing. The electronic device also includes a conductive pattern formed over the first surface and the second surface through a first through hole and electrically connected to the wireless communication circuit. The antenna carrier includes a first surface, a second surface opposite to the first surface, and through holes passing through the antenna carrier. The antenna carrier also includes a groove structure including a portion in contact with a second through hole and formed on the second surface of the antenna carrier. The wireless communication circuit transmits and / or receives a wireless signal by providing power to the conductive pattern.

Wireless sensing using measurement enhancement is described. In one example, a described method comprises: receiving a wireless signal transmitted by a transmitter through a wireless multipath channel of a venue, wherein the received wireless signal differs from the transmitted wireless signal due to the wireless multipath channel and a motion of an object in the venue; obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the received wireless signal, wherein each channel information (CI) comprises N1 CI components (CIC); for each respective CI having N1 CIC of the TSCI, computing a respective enhanced CI (ECI) having N2 CIC; computing a motion information (MI) based on the ECI of the TSCI; and performing a sensing task based on the MI.

According to various embodiments, an electronic device may include: a housing, an antenna structure disposed in the inner space of the housing, wherein the antenna structure includes: a substrate including a first substrate and a second substrate surface oriented in a direction opposite to the first substrate surface, and a first array antenna including a plurality of first chip antennas disposed at a specified interval in a first region of the first substrate surface, and a first wireless communication circuit disposed in the inner space and configured to transmit and / or receive a wireless signal of a first frequency band via the first array antenna.

In some aspects of the disclosure, an apparatus for wireless communication by a user equipment (UE) includes a primary receive (PRx) path associated with a first antenna and configured to receive a wireless signal. The apparatus further includes a diversity receive (DRx) path associated with a second antenna antenna. The apparatus further includes a phase shifter configured to phase-modify an interference signal from the second antenna based at least in part on a physical distance between the first antenna and the second antenna and further based on an angle of arrival (AoA) associated with the interference signal. The apparatus further includes a circuit configured to generate a received signal based on the wireless signal and the phase-modified interference signal.

Various embodiments of the present disclosure relate to a next-generation wireless communication system for supporting high data transfer rates beyond the 4th generation (4G) wireless communication system. According to the various embodiments, a method of transmitting and receiving signals in a wireless communication system and apparatus for supporting the same may be provided.

In the present disclosure, a UE may configure a first radio path directly connected to a network and a second radio path indirectly connected to the network through a relay UE, perform a first measurement on the first radio path and a second measurement on the second radio path, and report measurement information about the first measurement and the second measurement to the network based on the first measurement and the second measurement satisfying a specific event. Here, the specific event is satisfied based on one of the first measurement and the second measurement being below a first threshold and the other measurement exceeding a second threshold.

The invention provides a wireless network coverage prediction method, which belongs to the technical field of wireless communication, and comprises the following steps: constructing a wireless signal prediction model, setting correction factors and loss parameters according to different geographical environments, and carrying out preliminary prediction on the network coverage condition; taking the test base station as a center, actually measuring base station wireless signal indexes of different distances and ranges according to a geographical environment, and fitting actual measurement data to obtain a network coverage condition; and performing iterative correction on the correction factor and the loss parameter of the prediction model for different geographical environments by combining the prediction data and the actual measurement data of the prediction model to obtain network coverage prediction data in different geographical environments. The method has the advantages that a prediction framework based on multi-model fusion effectively deals with the influence of a complex geographical environment, signal attenuation change caused by topographic relief and building shielding can be accurately quantified, and the pain point of prediction misalignment of a traditional method in variable terrains and dense urban areas is solved.

Techniques and apparatuses are described for determining a position of user equipment by using adaptive phase-changing devices. In aspects, a base station transmits wireless signals for a UE toward respective reconfigurable intelligent surfaces (RISs) of adaptive phase-changing devices. The APDs may direct reflections of the wireless signals in a direction, such as toward the UE, based on a configuration of the RIS of the APD. The base station receives, from the UE via a wireless connection, identifiers of the reflections of the wireless signals that are received by the UE. In some cases, the base station also receives a signal quality parameter associated with the reflection reaching the UE. The base station determines angular information based on the respective identifiers and / or signal quality parameters of the reflections. Based on the angular information and known positions of the APDs, the base station determines a position of the UE.

Methods, apparatus and systems for wireless monitoring and tracking are described. In one example, a described method of a wireless monitoring system comprises: transmitting a wireless signal that is impacted by a wireless multipath channel in a venue and a modulation of an object undergoing a motion in the venue, to obtain a set of channel information (CI) of the wireless multipath channel; performing a monitoring task by monitoring the object and the motion; determining a plurality of admissible system states of the wireless monitoring system, wherein each admissible system state is associated with a respective setting of at least one of: the wireless signal, a series of sounding signals in the wireless signal, or the monitoring task; choosing one of the admissible system states to be a system state of the wireless monitoring system based on the monitoring task; and applying a setting associated with the chosen admissible system state to the wireless monitoring system.

The invention relates to a wireless signal optimization method and system fused with channel state detection, and the method comprises the steps: obtaining detection state parameters of a fused channel, carrying out the scene decision processing, and outputting a classification result; performing transmission matching according to the classification result to obtain a transmission parameter set; performing channel frequency identification on the fusion channel based on the classification result to obtain frequency band resource block features; and carrying out transmission dynamic adaptation and frequency resource allocation based on the transmission parameter set and the frequency band resource block characteristics to obtain wireless control parameters. According to the invention, the complex characteristics of the channel can be reflected more comprehensively, and the accuracy of channel state detection is improved.

A first communication device capable of selecting a bandwidth, includes a receiving circuit, for receiving a wireless signal from a second communication device according to a first bandwidth; a measurement circuit, coupled to the receiving circuit, for measuring a communication quality of the wireless signal; and a processing circuit, coupled to the measurement circuit, for selecting a second bandwidth according to the first bandwidth and the communication quality; and a transmission circuit, coupled to the processing circuit, for transmitting information of the second bandwidth to the second communication device, for the second communication device to transmit the wireless signal to the first communication device according to the second bandwidth.

This antenna assembly includes: a dielectric substrate; a first region including conductive patterns on one side of the dielectric substrate and configured to radiate a wireless signal; and a second region including a ground conductive pattern and a feed pattern. The conductive patterns may include a first conductive pattern including a first portion and a second portion, a second conductive pattern electrically connected to a first portion of the ground conductive pattern, and a third conductive pattern electrically connected to a second portion of the ground conductive pattern. The size of the second conductive pattern may be smaller than the size of the third conductive pattern. The size of the third conductive pattern may be greater than the size of the first conductive pattern.

The invention discloses an ad hoc network wireless intercom system and method for old cell reconstruction, the system is composed of an outdoor wireless digital host, a wireless repeater and a wireless indoor extension, an ad hoc multi-hop wireless local area network is constructed based on an ESP-WIFI-MESH protocol, redundant communication is realized by adopting a mesh topology structure, and the wireless intercom system and the wireless repeater are used for wireless intercom. The problems of high wiring cost and poor wireless signal coverage in the prior art are solved. The talkback method comprises the following steps: marking an alarm instruction as the highest level through a priority transmission mechanism, and preempting a channel to ensure zero delay of an emergency signal; voice and video data are scheduled in a hierarchical manner, and real-time performance and bandwidth are balanced. The wireless repeaters dynamically allocate IP addresses, support plug and play of extension sets, and realize cross-building communication and remote management in combination with a local area network of a community.

The invention provides a traffic control guiding method, device and equipment based on vehicle track identification, and aims to accurately obtain a vehicle moving path and identify a travel purpose type by constructing a multi-source wireless signal positioning data fusion and track semantic annotation identification mechanism, and generate a standardized track with a semantic tag. Establishing a similar behavior pattern library by adopting a behavior similarity analysis and clustering division technology, accurately identifying traffic key control points, evaluating node importance, and determining a control key area; a personalized and mastered guide strategy coordination design and a double-layer guide rule set construction technology are introduced, individual demands and group benefits are balanced, and a coordinated path recommendation and guide control scheme is generated; combining an effect tracking monitoring and trajectory mutual influence analysis mechanism to construct a feedback adjustment mechanism to generate a trajectory optimization guide scheme; and finally, a self-adaptive comprehensive traffic control system is formed, and accurate guidance and intelligent management and control of urban traffic are realized.

The low-temperature safety valve comprises a valve body shell composed of an installation section, a pressure relief section and a reset section, a pressure relief pipe is fixedly installed on the side face of the pressure relief section, a transversely-arranged partition plate is fixedly installed in the pressure relief section, a heat preservation material is arranged in the pressure relief section, and a communicating hole is formed in the middle of the partition plate; a sealing block matched with the communicating hole is arranged in the pressure relief section, a connecting valve rod is fixedly installed on the upper surface of the sealing block, and a reset spring located on the inner side of the reset section is fixedly installed at the upper end of the connecting valve rod. According to the low-temperature safety valve with the leakage alarm function, the device is integrally installed in a pipeline system through a flange structure of the installation section, when the pressure reaches a set value, the sealing block is jacked up, the purpose of automatic pressure relief is achieved, and in the process, a gas sensor outside the pressure relief section is used for detecting surrounding gas, so that whether gas leakage exists at the joint or not is judged; and a wireless signal is transmitted to a computer so as to achieve the purpose of automatic alarm.

According to one aspect of the disclosure, a method for measuring stress of a subject includes: transmitting, by a sensor, a wireless signal within an environment comprising the subject: measuring reflections of the wireless signal to generate a physiological signal responsive to changes in distance between the subject and the sensor over time: processing the physiological signal to extract feature data of the subject; and providing the feature data as input to a stress classification network to determine a stress level of the subject.

The invention discloses a multi-mode satellite communication-mercuric chloride computing power integrated module and a data processing method, and the module comprises a mercuric chloride NPU chip which is used for operating a scheduling model based on an AI algorithm, carrying out the real-time prediction of an unmanned plane, evaluating the link time delay, bandwidth and power consumption, and carrying out the real-time prediction of the link time delay, bandwidth and power consumption according to a path planning algorithm and an obstacle avoidance algorithm. Dynamically selecting an optimal communication mode; the Tiantong satellite communication module is used for transmitting the state log of the unmanned aerial vehicle; the Beidou positioning and short message module is used for transmitting the position, the state and the emergency message of the unmanned aerial vehicle; the 4G / 5G module is used for transmitting real-time control instructions and data; the IMU module is used for carrying out combined navigation and positioning by combining a Beidou GNSS; and the antenna is used for transmitting and receiving wireless signals. According to the invention, a plurality of communication modes are fused, and protocol scheduling optimization based on mercuric chloride computing power is combined, so that a communication function of wide-area coverage and accurate control is provided for the low-altitude unmanned aerial vehicle.

A method is provided for positioning of a device within an environment. The device may access a positioning model stored on the device, wherein the positioning model is based on training of positioning in the environment and represents characteristics of wireless signals in an area in which the device is located. The device may acquire sensor data by one or more sensors of the device, wherein the sensor data comprises position-dependent measurements for one or more positions of the device, wherein each position-dependent measurement relates to a wireless signal transmitted between the device and a radio transmitter arranged in the environment. The device may determine a location of the device within the environment based on inputting of the sensor data to the positioning model.