2944results about "Transmitters monitoring" patented technology

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

The invention discloses a beam forming control method and system for a 5G wireless communication antenna, and relates to the technical field of 5G wireless communication. The beam forming control method of the 5G wireless communication antenna comprises the following steps: S1, constructing a three-dimensional electromagnetic interference model by a three-dimensional perception pre-calibration method, and predicting an interference trend; s2, dividing an antenna coverage area into a core area and an edge area according to a partition weight optimization method; s3, adopting a blind area energy reconstruction method, monitoring signal intensity and attenuation, and identifying a communication blind area; s4, establishing a beam energy and terminal power consumption mapping model according to an energy efficiency dynamic matching method, and dynamically allocating main beam and sidelobe power; s5, a space-time coding anti-interference method is adopted, and same-frequency interference signals are eliminated through space-domain filtering; and S6, a track driving parameter migration method, constructing a dynamic response model, and realizing beam parameter migration adaptation. According to the invention, the problems of single channel, rigid adjustment and slow response in the prior art are solved.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing phase adjusting for one or more radiating elements of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

A wireless transmit / receive unit (WTRU) may include a processor that is configured to receive configuration information indicating a plurality of sub-bands for cross-link interference (CLI) measurements and respective resources for performing CLI measurements for each of the plurality of sub-bands. The processor may receive a downlink control information (DCI) indicating resources associated with a first reference sub-band. The processor may perform a CLI measurement for the first reference sub-band using one or more resources for performing CLI measurements for the first sub-band. The processor may perform a CLI measurement for at least one other sub-band of the plurality of sub-bands using the respective resources for CLI measurements of the at least one other sub-band based on determining that the CLI measurement for the first sub-band is greater than a threshold. The processor may send an indication that the CLI measurement for the sub-band is greater than the threshold.

A system may include multiple digital beamformer (DBF) circuits coupled to an analog front end that includes an antenna array. Each DBF circuit is coupled to a subset of the antenna elements of the array. Each DBF may be configured to adjust coefficients of complex multipliers to selectively enable and disable beams, antenna elements, transmit paths, receive paths, or any combination thereof to enable per-element calibration of the antenna array.

Aspects of the subject disclosure may include, for example, identifying one or more radiating elements of an antenna system that are to be adjusted based on interference determined to affect an operation of the antenna system, and altering one or more properties of the one or more radiating elements to effect polarization adjusting such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing phase adjusting for one or more radiating elements of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

The invention discloses a dynamic segmented scanning optimization method of a network analyzer and an adaptive frequency stepping algorithm, and relates to the technical field. The dynamic segmented scanning optimization method for the network analyzer comprises the following steps: acquiring set parameters and current state data of the network analyzer, executing low-density pre-scanning, analyzing frequency point response to construct a frequency band structure, evaluating the risk degree of each segment, allocating scanning priority levels, generating a corresponding scanning task plan, and finally executing segmented scanning according to the plan. According to the method, a low-density pre-scanning mechanism is introduced, reflection amplitude, phase and interference data are acquired, frequency bands are dynamically divided, response risks are evaluated, a differential strategy of high-density scanning of key frequency bands and low-density scanning of stable frequency bands is realized, and high-efficiency and accurate frequency response acquisition is realized. Jumping scanning leakage and redundant sampling are avoided, the scanning precision and efficiency are improved, the method adapts to complex test scenes, and the system resource utilization rate and the engineering practicability are enhanced.

The invention discloses an antenna control method and device and electronic equipment, and relates to the field of multimode cooperative communication, and the method comprises the steps: analyzing the characteristics of the environment around an antenna, generating an optimal polarization strategy in combination with a characteristic analysis result and a polarization switching prediction algorithm, transmitting a test signal through an antenna array controller, and recording a channel impulse response, time inversion processing is carried out on the channel impulse response, a time inversion signal and a phase compensation parameter are combined to generate a reverse emission signal, the reverse emission signal is reemitted, an optimal polarization strategy is combined to adjust the polarization state of each array element, a beam forming parameter set is generated, and the phase and amplitude of antenna equipment are adjusted through a controller. And monitoring signal strength and transmission efficiency, and generating a signal transmission performance data report. The antenna polarization switching method and device solve the technical problems that an antenna polarization switching algorithm cannot adapt to a dynamic electromagnetic environment and a multipath effect, the stability is insufficient, the signal strength is unstable, and the communication quality is affected in the related technology.

Aspects of the subject disclosure may include, for example, receiving, via an antenna, a communication signal generated by a communication device, and detecting interference in the communication signal, wherein the interference is generated by one or more interference sources, wherein the interference is detected by monitoring a near field region of the antenna, an intermediate field region of the antenna, a far field region of the antenna, or any combinations thereof, wherein the monitoring excludes monitoring only the far field region of the antenna. Other embodiments are disclosed.

The invention relates to the related technical field of antenna calibration, in particular to a phased-array antenna calibration method and system, and the method comprises the steps: building a three-dimensional near-field calibration reference, and simulating an initial error matrix; wave beam pointing deviation is determined through grouped excitation, and space angle error components are matched; generating a dynamic calibration weight matrix; and deploying distributed calibration nodes, and carrying out mutual coupling effect bias measurement and calibration decision. The technical problems that a static compensation coefficient is difficult to adapt to a dynamic working condition, thermal drift, mechanical deformation and electromagnetic interference cannot be effectively separated, and the stability of a communication link is influenced are solved, an initial error matrix is prepared by establishing a three-dimensional near-field calibration reference and combining phase difference and amplitude errors, collaborative optimization of grouped excitation and angle errors is carried out, and the stability of the communication link is improved. And in combination with the least square method and the deep separable convolutional neural network, environment disturbance is effectively separated and dynamically compensated, distributed calibration nodes are deployed, the mutual coupling calibration efficiency between array elements is improved, and the technical effect of influencing the stability of a communication link is further guaranteed.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

The present disclosure relates to the technical field of electromagnetic wave sensors, in particular to a signal transmitting, calibration, compensation and transceiving links, an integrated circuit, an electromagnetic wave sensor and a device, wherein the transmitting link includes an analog signal source and a digital phase shifter, the analog signal source may be configured to provide an initial analog signal, and the digital phase shifter may be configured to provide a phase shift signal in a digital domain and to perform phase shifting on the initial analog signal based on the phase shift signal, so as to perform a preset phase shifting operation on the initial analog signal, thereby effectively improving the phase modulation resolution and phase modulation accuracy.

A device (100) and method for self-calibrating a radiofrequency transmitter are disclosed, the device comprising: first circuitry (120) for receiving a reference phase value (ϕ) and configured to output a first analog signal (AI) based on the reference phase value (ϕ); second circuitry (130) for receiving said reference phase value (ϕ) and configured to output a second analog signal (AQ) based on the reference phase value (ϕ); an IQ modulator (110) coupled to receive an input signal (LO), said first analog signal and said second analog signal, and configured to provide an IQ modulator output signal (RFout) based on said input signal, said first analog signal (AI) and said second analog signal (AQ); and compensation control circuitry (150) coupled to receive the IQ modulator output signal (RFout) and configured, during calibration, to output at least one compensation signal indicative of a compensation value based on the IQ modulator output signal (RFout); wherein at least one of said first circuitry (120) and said second circuitry (130) comprises: a digital signal generating portion (210, 310) for generating a digital signal (DI, DQ) based on the reference phase value (ϕ) and at least one said compensation value, a sigma-delta modulator portion (220, 320) coupled to receive the digital signal (DI, DQ) and configured, during calibration, for sigma-delta modulating the digital signal (DI, DQ); and a digital-to-analog converter (230, 330), coupled, during calibration, to receive the modulated digital signal provided by the sigma-delta modulator portion (220, 330) and configured to output said respective first / second analog signal (AI, AQ).

This application discloses a calibration method and apparatus, an information transmission method and apparatus, and a communication device. The calibration method includes: obtaining, by a first node, first information, and obtaining a first measurement value, where the first information is used to indicate a non-ideal factor existing when at least one sensing node executes a first service, the first service includes a sensing service or an integrated sensing and communication service, and the non-ideal factor includes a factor causing at least one of a frequency deviation, a time deviation, a power deviation, an amplitude deviation, or a phase deviation between the first measurement value and a true value; and performing, by the first node, calibration processing on the first measurement value based on the first information, to obtain a second measurement value, where a sensing result of the first service is determined based on the second measurement value.

Various aspects of the present disclosure relate to a communication device (e.g., a user equipment (UE)) that has a transceiver and a set of antenna panels. The communication device transmits a signal from the transceiver, where the signal is transmitted simultaneously as a maximum power reference signal from a best beam in each antenna panel of the set of antenna panels for a measurement of effective isotropic radiated power (EIRP) in a transmission direction. Additionally, the communication device receives a reference signal, and demodulates the reference signal independently for each antenna panel of the set of antenna panels for a measurement of effective isotropic sensitivity (EIS) in a reception direction.

A wireless device receives, from a base station, configuration parameters indicating a plurality of bandwidth parts of a cell. Power measurements that indicate a listen before talk (LBT) failure on each of the plurality of bandwidth parts are performed. A radio link failure of the cell is declared in response to the power measurements indicating the LBT failure on each of the plurality of bandwidth parts.

The invention relates to the technical field of signal calibration, in particular to a near-field calibration method based on near-field antenna offset error estimation, and the method comprises the steps: carrying out the near-field calibration of a target phased-array antenna, obtaining the phase value of each channel, comparing the phase value with near-field reference data, and obtaining the original calibration value of each channel; wherein the number of the target phased-array antennas is M rows and N columns; dividing the original calibration value of each channel into M sections according to rows, respectively performing phase unwrapping operation on each section to obtain M phase vectors, respectively performing linear fitting on each phase vector, and estimating a slope value corresponding to each row; based on the slope value corresponding to each row, matching a corresponding offset in an offset error slope corresponding table, and calculating to obtain an estimated offset according to each offset; respectively calculating the phase difference of each channel caused by the estimated offset, and compensating the original calibration value based on the phase difference to obtain a compensated calibration value; and correcting the calibration coefficient based on the compensated calibration value.

A communication device outputs a probe signal from a power amplifier to the antenna and measures reflected impedance from the antenna resulting from the probe signal. The communication device classifies the reflected impedance measured from the antenna resulting from the probe signal as a select classification of multiple calibrated reflection classifications, wherein the multiple calibrated reflection classifications include variations in reflected impedance. The communication device adjusts the transmission signal in accordance with the select classification.

Systems and methods are provided for a digital beamformed phased array feed. The system may include a radome configured to allow electromagnetic waves to propagate; a multi-band software defined antenna array tile; a power and clock management subsystem configured to manage power and time of operation; a thermal management subsystem configured to dissipate heat generated by the multi-band software defined antenna array tile; and an enclosure assembly. The multi-band software defined antenna array tile may include a plurality of coupled dipole array antenna elements; a plurality of frequency converters; and a plurality of digital beamformers.

The invention provides a signal transceiving test system for simulating a shared local oscillator and a calibration method thereof, and the system comprises a signal generation module which outputs a baseband signal; the first local oscillator module comprises a first clock source, a first phase-locked loop and a first frequency multiplication channel, and the first frequency multiplication channel outputs a first local oscillator signal; the first frequency mixer is used for mixing the baseband signal and the first local oscillator signal to generate a modulation signal; the second local oscillator module comprises a second clock source, a second phase-locked loop and a second frequency multiplication channel, and the second frequency multiplication channel outputs a second local oscillator signal; the second frequency mixer is used for mixing the modulation signal and the second local oscillation signal to generate a demodulation signal; the signal analysis module is used for receiving and analyzing the demodulated signal; and the controller adjusts the first phase-locked loop or the second phase-locked loop. The problem that the phase difference of different local oscillators cannot be predicted can be solved while mutual interference of the shared local oscillators is avoided, so that the test calibration precision is improved.

Certain aspects of the present disclosure provide techniques for identifying a minimal, or at least reduced, set of representative calibration paths in radio frequency (RF) circuits and calibrating other calibration paths based on calibration codes used for the representative calibration paths. An example method generally includes receiving a calibration data set including measurements associated with each calibration path of a plurality of calibration paths in an RF circuit. Based on a clustering model and the calibration data set, a plurality of calibration clusters is generated. From each respective calibration cluster of the plurality of calibration clusters, a respective representative calibration path for is selected for the respective calibration cluster. Generally, calibration codes generated for the representative calibration path are applicable to other calibration paths in the calibration cluster. A lookup table is generated associating a respective calibration path with other calibration paths in each respective calibration cluster.

A digital pre-processing chip is disclosed. The digital pre-processing chip comprises an analog interface for transmitting and receiving analog signals to and from a plurality of analog Radio Frequency (RF) chips, and a digital interface for transmitting and receiving digital signals to and from a baseband chip. The digital pre-processing chip further comprises a plurality of Analog-to-Digital Converters (ADCs) for converting a plurality of analog signals received via the analog interface to a plurality of RX digital signals, and a plurality of Digital-to-Analog Converters (DACs) for converting a plurality of TX digital signals to a plurality of analog signals to be transmitted to the plurality of analog RF chips via the analog interface. The digital pre-processing chip further comprises pre-processing circuitry configured to pre-process the plurality of RX digital signals received from the plurality of ADCs to form a pre-processed digital signal to be transmitted to the baseband chip via the digital interface. The pre-processing circuitry is further configured to pre-process a digital signal received via the digital interface to form the plurality of TX digital signals to be transmitted to the plurality of DACs.

A method for evaluating a device having at least one antenna array, the device being configured to form a plurality of communication beam patterns using the antenna array, the method comprising: positioning the device in a measurement environment around the device or moving / switching a sounding / link antenna in the measurement environment, the measurement environment being adapted to measure the beam pattern; and controlling the device to form a predefined beam pattern among the plurality of communication beam patterns. The method comprises: measuring the predefined beam pattern using the measurement environment and / or the device.

The invention discloses a statistical eye pattern generation method and device and a storage medium. The method comprises the following steps: inputting a step signal at a transmitting end of a channel, and determining a step response function based on the step signal; introducing a dithering signal at the transmitting end, and determining a dithering probability model based on the dithering signal; based on a jitter probability model, determining a jitter value set and a jitter probability set; determining a state transition probability matrix between the first moment and the second moment in the input step signal; based on the state transition probability matrix and the step response function, establishing an equivalent response distribution kernel for the target sampling moment; performing convolution operation on the voltage probability distribution at the previous sampling moment of the target sampling moment and the equivalent response distribution kernel, determining the voltage probability distribution at the target sampling moment, and determining the voltage probability distribution at multiple sampling moments; and generating a statistical eye pattern based on the voltage probability distribution at the plurality of sampling moments. The method has the technical effect of assisting in improving the credibility of simulation evaluation.

Example automatic test equipment (ATE) includes a transmitter to output a waveform to a transmission line; circuitry to detect data for the waveform on the transmission line, with the circuitry being configured to scan the waveform across a range of times and across a range of voltages to obtain the data for the waveform; and memory to store the data detected by the circuitry.

The invention relates to the technical field of communication testing, and discloses a radio frequency device testing system, method, device and equipment, and the system comprises a digital module, a radio frequency module and a switch module. A port of the digital module is electrically connected with a state pin of the tested piece; the digital module is used for controlling the working state of the tested piece; the radio frequency module comprises a vector network analyzer and a vector signal transceiver; the vector network analyzer is used for testing the radio frequency performance of the tested piece; the vector signal transceiver is used for testing the signal quality of the tested piece; a first port of the switch module is electrically connected with a port of the vector network analyzer; a second port of the switch module is electrically connected with a port of the vector signal transceiver; a third port of the switch module is electrically connected with a radio frequency port of the tested piece; the switch module is used for switching the test access to the corresponding radio frequency module according to the test requirement. According to the invention, the comprehensiveness and efficiency of radio frequency device testing are improved.