31 results about "Equivalent isotropically radiated power" patented technology

Independent sounding for two or more RF modules for increased EIRP is described. An apparatus is configured to receive, from a network node, a CSI configuration. The CSI configuration is indicative of a format associated with at least one CSI report. The apparatus is configured to receive multiple CSI-RS transmissions during at least one CSI-RS occasion. The multiple CSI-RS transmissions include a CSI-RS from each logically combined set of antenna modules of the network node. The apparatus is configured to provide, for the network node, the at least one CSI report based on the format associated with the at least one CSI report and based on the CSI-RS. The at least one CSI report is indicative of at least one of a relative timing offset associated with the multiple CSI-RS transmissions or a relative phase offset associated with the multiple CSI-RS transmissions during the at least one CSI-RS occasion.

A base station transmits a first transmission using a first directional beam and determines an equivalent isotropically radiated power (EIRP) relationship between the first transmission and a physical downlink shared channel (PDSCH) for a user equipment (UE). The base station transmits an indication of the EIRP relationship between the first transmission and the PDSCH to the UE. Subsequently, the base station transmits the PDSCH to the UE using a second directional beam. The UE uses the indication of the EIRP relationship to receive the PDSCH from the base station on the second directional beam.

Systems and methods are disclosed for using clear channel assessment (CCA) on a transmission channel prior to transmission on the channel. A wireless transmission system can perform an omnidirectional CCA using a CCA power threshold calculated based on a number of synchronization signal blocks (SSBs) transmitted by the wireless transmission system using a synchronization signal block (SSB) burst or synchronization signal / physical broadcast channel (SS / PBCH) block measurement timing configuration (SMTC) window or based on a number of transmit (Tx) antennas used. The wireless transmission system can perform a directional CCA on one or more receive (Rx) beams corresponding to one or more intended Tx beams to determine directional availability of the channel using a CCA power threshold calculated based on an equivalent isotropically radiated power (EIRP) of the one or more intended Tx beams. The wireless transmission system can determine a CCA power threshold based on a scaling between an actual CCA bandwidth and a nominal CCA bandwidth.

The invention discloses an anti-unmanned aerial vehicle radar system, a detection method and device thereof, electronic equipment and a storage medium. The anti-unmanned aerial vehicle radar system comprises a main control device, a radio frequency circuit and a front-end array antenna module. The main control device is used for sending a driving control signal to the radio frequency circuit and processing a feedback signal to obtain a detection result; the radio frequency circuit is used for generating a continuous wave radio frequency signal based on the driving control signal, sending the continuous wave radio frequency signal to the front-end array antenna module, receiving a reflection signal fed back by the front-end array antenna module to generate a feedback signal, and sending the feedback signal to the main control device. The anti-unmanned aerial vehicle radar system works based on frequency modulated continuous waves, and has the advantages of higher scanning speed, better interference resistance, higher estimation precision, low equivalent omnidirectional radiation power, better dynamic range adaptability and the like compared with a traditional analog beam forming technology. Therefore, existence of the unmanned aerial vehicle can be found and identified in time.

Method and apparatus for EIRP mask specifications with subarray antenna architectures. The apparatus selects at least one transmission configuration parameter of an antenna array based on an EIRP threshold including one or more of an average EIRP over multiple subarray architecture parameters or a maximum EIRP for each of the multiple subarray architecture parameters. The apparatus transmits based on the at least one transmission configuration parameter. The apparatus may measure at least one of the average EIRP or the maximum EIRP based on the selected at least one transmission configuration parameters. The apparatus may compare the selected at least one transmission configuration parameters with a configured set of acceptable parameters or non-acceptable parameters.

The invention relates to the technical field of signal transmission, and discloses a signal transmission test method and system for a wireless bridge, and the method comprises the steps: calculating the equivalent omnidirectional radiation power corresponding to the wireless bridge; identifying an antenna structure corresponding to the wireless network bridge, constructing an equivalent signal transmission model corresponding to the wireless network bridge, performing signal propagation path analysis processing on the equivalent signal transmission model to obtain a target transmission model, and performing signal strength simulation processing on the target transmission model to obtain signal strength simulation data; calculating a signal attenuation modulus corresponding to the target transmission model, and evaluating a signal radiation airspace corresponding to the wireless network bridge; and performing interference simulation processing on the target transmission model, calculating an interference suppression intensity coefficient corresponding to the target transmission model, evaluating transmission anti-interference tolerance corresponding to the wireless bridge based on the interference suppression intensity coefficient, and executing signal transmission test analysis of the wireless bridge to obtain a test result. According to the invention, the accuracy of the signal transmission test of the wireless bridge can be improved.

The invention discloses a satellite carrier signal equivalent omnidirectional radiation power test method, device and system, and the method comprises the steps: calculating a broadband carrier signal test link compensation item through a standard satellite link in a link calibration stage, and the standard satellite link is established through a standard gain antenna, a compact range reflection surface and a feed source antenna; in a satellite performance test stage, a satellite load is controlled to transmit a satellite carrier signal, and the multi-degree-of-freedom platform is controlled to drive the satellite load to move, so that a beam of the satellite carrier signal points to a compact range reflecting surface in real time in the movement process of the satellite load; and after a satellite carrier signal reaches the feed source antenna through the compact range reflecting surface, calculating a dynamic equivalent omnidirectional radiation power value of each track point according to an in-band power value of the satellite carrier signal of the satellite load at each track point and a broadband carrier signal test link compensation item. The device can simulate the dynamic working condition, and is suitable for the dynamic test process of the high-precision equivalent omnidirectional radiation power with broadband carrier characteristics.

The present application relates to the technical field of communications, and discloses a power ramping method and apparatus, a terminal, and a network side device. The power ramping method of embodiments of the present application comprises: when a terminal receives first information from a network side device, the terminal ramps at least one of an upper limit value of a target object and a lower limit value of the target object, wherein the target object comprises at least one of the maximum output power value of the terminal and a measured peak value of the equivalent isotropic radiated power of the terminal, and the first information is used for instructing the terminal to perform a ramping operation on the target object.

A testing device determines an Effective Isotropic Radiated Power (EIRP) of a wanted signal at a beam-peak direction and a maximum Total Radiated Power (TRP) of the wanted signal. The testing device then determines a power difference (ΔP) between the EIRP of the wanted signal at the beam-peak direction and the maximum TRP of the wanted signal. The testing device determines EIRP of a spectral emission mask (SEM) at each measurement bandwidth step at the beam-peak direction. The testing device then determines TRP at each measurement bandwidth step by determining a difference between the EIRP of the SEM at that measurement bandwidth step and the power difference (ΔP). The testing device compares the TRP at each measurement bandwidth step to a SEM specification, and reports whether the SEM specification has been met.

The present invention provides a dynamic power consumption control method for a phased array system based on airspace coverage optimization, belonging to the technical field of phased array communication. It includes: dynamically adjusting the overlapping angle threshold to establish a dynamic mapping relationship between the target position and the effective coverage area of the current array surface; determining whether a target enters the overlapping coverage area of adjacent array surfaces; optimizing the hysteresis switching threshold through the Q-learning method to predict the trajectory of the target; starting a two-level compensation mechanism to control the transmission power; sending power configuration parameters to each array surface transmitter, and monitoring the channel temperature in real time. When it is detected that the channel temperature continuously exceeds the preset temperature, a backup channel rotation mechanism is started. By monitoring the target airspace position and beam pointing characteristics in real time, dynamically controlling the on / off state of the transceiver channels of each array surface, and adopting an overlapping coverage area optimization switching strategy and a transmission power compensation mechanism, the present invention can significantly reduce the system power consumption on the premise of ensuring the equivalent isotropic radiated power.

The required equivalent isotropic radiated power of a phased array can vary rapidly due to changes of channel conditions, link properties, communication distance, or mode of operation. Maintaining maximum efficiency of a phased array antenna over the entire range of required equivalent isotropic radiated power levels is challenging but highly desirable. An array controller is disclosed that computes the optimal set of power amplifiers and beamformer elements to be activated in order to achieve the highest possible efficiency, or equivalently, the lower possible power consumption for the equivalent isotropic radiated power while maintaining the selected beam pattern.

A method is presented for maximizing equivalent isotropic radiated power (EIRP) of an active electronically scanned array (AESA) system. This AESA system includes a phased array of radio-frequency (RF) channels each having an associated emitter element. A desired nulling location is first identified, constituting a spatial location for transmission nulling relative to the phased array. Theoretical aperture patterns for the AESA system are computed to maximize radiated power while aligning a geographical null of a beam of the AESA system with the desired nulling location. These theoretical aperture patterns include nominal values of gain and a time-based parameter (e.g. phase or time delay) for each RF channel. From these theoretical aperture patterns, for each RF channel, actual gain is empirically calibrated to maximize EIRP, while actual time-based parameter is calibrated by iterative bisection of a time-based parameter table through successively narrower ranges of the time-based parameter converging upon a nominal gain value. Each RF channel is then driven according to its calibrated actual gain and time-based parameter.

The invention discloses a power raising method and device, a terminal and network side equipment, and belongs to the technical field of communication, and the power raising method comprises the steps that under the condition that the terminal receives first information from the network side equipment, the terminal raises at least one of an upper limit value of a target object and a lower limit value of the target object, the target object comprises at least one of the maximum output power value of the terminal and the measurement peak value of the equivalent omnidirectional radiation power of the terminal; wherein the first information is used for indicating the terminal to execute the lifting operation of the target object.

A method comprising: decoding, by a user equipment (UE), in connection with a random access (RACH) procedure, a configuration for the synchronization signal block (SSB) burst interval; determining if the SSB burst interval is divided into a static transmission part with no beam sweeping and a dynamic receiving part including beam sweeping, wherein the receiving part is used as random access occasion in the RACH procedure; determining if the static transmission part is configured to toggle between two or more wide horizontal beams; configuring, in response to the toggle being configured, at least one static beam for first toggled transmission SSB signals; measuring power level values of the first toggled transmission SSB signals using said at least one static beam; deriving Equivalent Isotropic Radiated Power (EIRP) difference between the toggled transmission beams; and normalizing, upon beam alignment procedure for the rest of the transmission SSB bursts, the measured power level values of the SSBs by the EIRP difference

This invention relates to the field of low-Earth orbit (LEO) satellites, specifically disclosing a method, apparatus, storage medium, and electronic device for LEO satellite-to-Earth beam staring. The method includes: adjusting the beamwidth of a target beam in real time based on the beam pointing angle to control the Earth coverage area of ​​the LEO satellite during its transit relative to the target Earth surface location to remain within a preset area. The target beam provides services to terminals at the target Earth surface location, and the beam pointing angle is the real-time angle between the target beam and the beam pointing normal, with the beam pointing normal aligned with the Earth's center in real time. The invention also involves adjusting the equivalent isotropic radiation power of the target beam in real time based on the beam pointing angle to control the transmit power flux density of the LEO satellite during its transit relative to the target Earth surface location to remain within a preset density range. This invention solves the technical problem of service interruptions caused by frequent beam switching within LEO satellites.

The present invention relates to the field of ground-based radar observation technology, and specifically to a method for evaluating the performance of a dual-base ground-based planetary radar, comprising the following steps: Step 1: Establishing a ground-based transmitting radar parameter library and calculating the equivalent isotropically radiated power of the ground-based transmitting radar; Step 2: Establishing a ground-based receiving radar parameter library and calculating the quality factor of the ground-based receiving radar system; Step 3: Establishing an asteroid target parameter library and evaluating the echo signal characteristics; Step 4: Analyzing and evaluating the operating frequency and operating mode matching of the dual-base planetary radar based on search and find; Step 5: Analyzing the timing matching capability of the dual-base planetary radar based on light travel time; Step 6: Completing the performance evaluation of the dual-base planetary radar based on a comprehensive evaluation function and determining the optimal operating state; Step 7: Establishing a normalized evaluation function and systematically evaluating feasibility. The present invention achieves joint observation by coordinating the operating modes and operating timings of the transmitting and receiving radars.

Methods, systems, and devices for wireless communications are described. A regulatory node may maintain bidirectional communications between potential aggressor nodes and potential victim nodes to enable compliance with power regulations of a given environment. For example, the regulatory node may obtain equivalent isotropic radiated power (EIRP) information corresponding to an environment in which a first node is located, where the EIRP information may include respective permissible EIRP levels over a range of angles relative to the environment. The regulatory node may monitor during a first duration, an EIRP level of a set of beams of the first node over the range of angles in accordance with the EIRP information. As such, the regulatory node may output a first compliance report associated with the first time duration, where the first compliance report indicates whether one or more of the beams conforms to the EIRP information.

The invention provides a multi-beam synthesis method and device based on a collaborative null generation strategy, and belongs to the technical field of antenna design. The method provided by the invention comprises the following steps: randomly generating a design index in a beam direction range, and constructing a mask matrix based on the design index; constructing a multi-beam comprehensive model, inputting the mask matrix into the multi-beam comprehensive model, and training the multi-beam comprehensive model to output amplitude excitation and phase excitation of each beam; constructing a target mask matrix according to beam performance indexes in an actual application scene; and inputting the target mask matrix into a trained multi-beam comprehensive model, outputting amplitude excitation and phase excitation of each array unit for different beams, loading the amplitude excitation and the phase excitation to a multi-beam phased array, and generating a multi-beam far-field directional diagram. The invention provides a multi-beam synthesis method and device based on a collaborative null generation strategy. The method and the device are used for reducing the loss of equivalent omnidirectional radiation power on the premise of effectively suppressing multi-beam interference.

A communication device includes: an acquisition unit that acquires setting information on power feeding to an array antenna, which has been calculated based on an evaluation criterion based on equivalent isotropic radiated power (EIRP) and power density at a predetermined legally regulated area average; and a communication control unit that controls the array antenna based on the setting information.

The invention discloses a link budgeting method and device, communication equipment, a computer storage medium and a program product, and the method comprises the steps: obtaining a channel parameter, and determining a system parameter based on the channel parameter; determining a sub-optimization model based on the channel parameters and the system parameters; determining an overall optimization model based on the sub-optimization model and the system parameters; determining a first transmitting power based on the sub-optimization model and the overall optimization model, wherein the first transmitting power is an equivalent omnidirectional radiation power meeting a full-time link requirement based on a preset period; therefore, the link budget estimation is more accurate.

Systems, methods, apparatuses, and computer program products for machine learning based generalized equivalent isotropically radiated power control are provided. For example, a method may include receiving a plurality of input parameters. The input parameters can describe a directional portion of a radiation pattern of an antenna array and a weighting to be applied to the antenna array. The method may further include processing the plurality of input parameters using a trained neural network. The method may also include providing an output representative of equivalent isotropically radiated power associated with the plurality of input parameters.

The embodiment of the invention provides a satellite darkroom wireless test system and a test method thereof. The method is applied to aerospace technical field. According to the system, a satellite in a darkroom is connected with a satellite transmitting / receiving antenna in the darkroom through a radio frequency line, a ground station system outside the darkroom is connected with a ground transmitting / receiving antenna in the darkroom through a radio frequency line, and a computing device outside the darkroom is connected with the satellite and the ground station system through a switch. The system is used for simulating a satellite-ground wireless communication function and testing satellite wireless transmitting and receiving indexes, and the satellite wireless transmitting and receiving indexes comprise at least one of equivalent omnidirectional radiation power, single-machine sensitivity and effective omnidirectional receiving sensitivity. In this way, satellite wireless transmitting and receiving indexes can be quantified, the satellite-ground wireless communication function can be simulated, the on-orbit troubleshooting time and labor cost are reduced, and the influence of electromagnetic radiation on operators is avoided.

An output control method for adjusting an output of a radio communication module includes a temperature adjustment step, a transmission step, a feedback control step, a measurement step, and an output control step. The temperature adjustment step sets a temperature of the radio communication module to a predetermined set temperature by a temperature adjusting mechanism. The transmission step has a first antenna transmit a radio signal by sending a transmission signal of a predetermined frequency to the radio communication module. The feedback control step controls an output of the transmission signal based on a comparative result between a power value obtained by detecting the transmission signal and a predetermined threshold value of power. The measurement step receives the radio signal by a second antenna, and measures an equivalent isotropic radiated power of the radio signal. The output control step adjusts an output of the transmission signal based on the equivalent isotropic radiated power measured in the measurement step.

The present invention provides a phase-only low-sidelobe synthesis method, device, computing medium, and electronic device suitable for large-angle scanning of planar antenna arrays. The method comprises at least the following steps: Step S1, initializing the excitation phase based on the planar antenna array and the desired scanning angle, and finding the sidelobe region corresponding to the initialized excitation phase; Step S2, constructing an iterative model for phase perturbation, and obtaining the excitation phase corresponding to the number of iterations and the sidelobe region of the corresponding pattern; Step S3, repeating Step S2 until the optimized excitation phase is obtained when the set requirements are met, and calculating the pattern based on the optimized excitation phase. This application can maximize the input power of the array, increase the equivalent isotropically radiated power, and efficiently implement a beam scanning function with sidelobe suppression.

The application discloses a kind of fast and efficient array beam deflection angle calibration methods for equivalent isotropically radiated power test, including pre-calibration stage and calibration stage;Pre-calibration stage, a standard antenna under test is used as reference, placed in the quiet zone of compact range;In the case of unfocused feed, rotate reference 0 and 20, record the two sets of data;In the case of defocus, rotate reference 0, θ m , 30 and get the corresponding S 21 , record the three sets of data;Get the expression of two deflection angle fitting functions;Calibration stage places the problematic device in the quiet zone of compact range, and positions the feed according to the feed deflection angle 0, 20, -20, respectively, to obtain the corresponding S 21 ;The three sets of test values are brought into the unfocused compact range angle power fitting function and the defocused compact range angle power fitting function, to obtain the peak deflection angle and deflection direction of the problematic device.The application realizes the angle calibration of production line test equipment, with the characteristics of convenience and efficiency.

The application discloses a signal transmitting power control method and related equipment. The method comprises: when N target objects correspond to radio frequency signals which are transmitted at the same time, a terminal performs transmitting power control based on a first equivalent isotropically radiated power; wherein N is an integer greater than 1, the target objects include beams, carriers, frequency bands or antenna panels, and the first equivalent isotropically radiated power is determined based on the equivalent isotropically radiated power of each target object under one spatial angle information. The embodiment of the application defines the definition of the first equivalent isotropically radiated power used for performing transmitting power control in the scenario where multiple beams or multiple carriers work at the same time, thereby solving the problem of the control limitation of the terminal on the transmitting power in the scenario where multiple beams or multiple carriers work at the same time.

Some examples of the techniques described herein may relate to multi-user multiple-input multiple-output (MU-MIMO) transmissions as a communications scheme for equivalent isotropic radiated power (EIRP) masks. For MU-MIMO transmissions, co-scheduled user equipments (UEs) may be separated in azimuth or elevation domains. Some approaches are provided in which UE separation or subarray architecture at a network may be incorporated in terms of EIRP masks. In some approaches, a wireless device (e.g., base station, transmission-reception point (TRP), or network entity, among other examples) may receive signals from UEs in different directions. An angular separation may be utilized to select a beamforming scheme (e.g., discrete Fourier transform (DFT) beamforming, zero-forcing beamforming, or inverse beamforming, among other examples). In some examples, transmit power may be controlled utilizing a power backoff scheme that may be selected based on the angular range or associated with a beamforming scheme.

The invention provides a high-speed satellite communication system applied to a deep sea microminiature buoy, which is sealed in a watertight cover and comprises a multi-system common-array-plane antenna, a transceiving radio frequency front end and a wireless communication monitoring unit which are designed in an integrated manner and share the same structure, the multi-system common-array-plane antenna is a circular array antenna, an S-band planar array antenna, a Beidou / GPS positioning receiving antenna and a wireless MIMO wireless antenna are integrated on the array plane, and through cooperation with a receiving and transmitting radio frequency front end, on the premise that the ratio of equivalent omni-directional radiation power and antenna gain to system noise temperature meets the communication link condition, the communication efficiency is improved. The receiving and transmitting of Tiantong No.1 communication signals and Tianchain No.2 SMA signals, the receiving of Beidou / GPS positioning signals and the receiving and transmitting of wireless communication signals are realized; and the wireless communication monitoring unit monitors the internal working state of the system in real time, issues an instruction to realize function configuration, and establishes a wireless data transmission link with a ship end platform within 5km.

The application discloses a Beidou navigation satellite signal ground-based monitoring method and system, and comprises the following steps: obtaining ground-based system receiving power P R (θ, φ) through signal power received by a ground-based receiving station R (θ, φ) according to preset product information of an antenna of the ground-based monitoring station; obtaining a transmission distance according to positions of the ground-based receiving station and the Beidou navigation satellite; and obtaining equivalent omnidirectional radiation power of the Beidou navigation satellite according to the ground-based system receiving power P R (θ, φ), the antenna pattern G R (θ, φ) and the transmission distance. The application solves the bottleneck problem of the Beidou system of China in the process of quantitative remote sensing application.

Some examples of the techniques described herein may relate to multi-user multiple-input multiple-output (MU-MIMO) transmissions as a communications scheme for equivalent isotropic radiated power (EIRP) masks. For MU-MIMO transmissions, co-scheduled user equipments (UEs) may be separated in azimuth or elevation domains. Some approaches are provided in which UE separation or subarray architecture at a network may be incorporated in terms of EIRP masks. In some approaches, a wireless device (e.g., base station, transmission-reception point (TRP), or network entity, among other examples) may receive signals from UEs in different directions. An angular separation may be utilized to select a beamforming scheme (e.g., discrete Fourier transform (DFT) beamforming, zero-forcing beamforming, or inverse beamforming, among other examples). In some examples, transmit power may be controlled utilizing a power backoff scheme that may be selected based on the angular range or associated with a beamforming scheme.