102 results about "Spectrum band" patented technology

Technologies for managing interference between terrestrial network (TN) and non-terrestrial network (NTN) are disclosed. An example method includes determining a location of a user equipment (UE), assessing potential interference between TN and NTN based on the determined UE location and spectrum band coverage information of TN and NTN, acting on the UE's connection to the NTN or a request from the UE for connection to the NTN based on the assessed potential interference, and updating the spectrum band coverage information of TN and NTN.

The invention discloses a water quality inspection system based on a full-spectrum unmanned aerial vehicle, and relates to the technical field of environmental monitoring, the system comprises a spectrum acquisition module for acquiring an original spectrum data set containing related information of pollutant types and concentrations to obtain preliminary spectral feature distribution, a data preprocessing module for preprocessing the initial spectral feature distribution according to the preliminary spectral feature distribution, and a water quality inspection module for inspecting water quality according to the data preprocessing module. The system comprises an original spectrum data set, a feature extraction module for denoising the original spectrum data set to obtain a pure spectrum signal set, and a feature extraction module for extracting specific signal features of pollutants for the pure spectrum signal set and determining a spectrum band range corresponding to each feature to obtain a characterized spectrum signal subset; the water quality inspection system based on the full-spectrum unmanned aerial vehicle realizes real-time monitoring and analysis of water body pollution, can quickly identify the types, concentrations and diffusion conditions of pollutants, provides scientific basis and decision support for water body pollution treatment, and has important environmental protection significance.

Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may be configured to receive, from a second UE, a first sidelink control message indicating a first reserved resource to be used by the second UE for sidelink communications in a shared radio frequency spectrum band. The first UE may additionally receive, from a third UE, a second sidelink control message indicating a second reserved resource to be used by the third UE for sidelink communications in the shared radio frequency spectrum band. The first UE may transmit an indication of a conflict between the first and second reserved resources based on the first and second reserved resources overlapping in time and frequency, a signal strength for a signal received from the second UE, the third UE, or both, and a channel access parameter for communications with the second UE, the third UE, or both.

The invention discloses a pixel response inconsistency correction method and system. The method relates to the technical field of pixel response correction and comprises the following steps of pixel dynamic offset calculation, flat field coefficient acquisition, pixel-level comprehensive correction and dead pixel self-repairing secondary optimization. The method comprises the following steps: acquiring a dark frame image and real-time temperature data, and calculating a dynamic offset of a pixel by means of a temperature-time double-domain prediction model; a flat field coefficient is obtained by fusing a basic value calibrated by a laboratory miniature integrating sphere in a full spectrum band and an updated value obtained by in-orbit observation of a deep space and a cloud top and processing of dead pixel detection and the like; then combining a GPS, an attitude angle and a real-time temperature, and using an offset and a flat-field coefficient to carry out pixel-level correction; and finally, a gain compensation matrix is output by means of a deep reinforcement learning model containing a convolutional neural network and a long-short-term memory network, the image is secondarily optimized through a dead pixel self-repairing module, the pixel response inconsistency correction precision is improved, and the problem that in the prior art, the pixel response inconsistency correction error is large is solved.

The invention discloses a multispectral microscope blood cell automatic classification and counting system. The system is composed of a multispectral illumination and microscopic imaging module, a spectrum and geometric calibration module, a multispectral preprocessing and cell segmentation module, a multispectral discrimination index and spectral band weight adaptive updating module, a cell graph structure classification module, a man-machine interaction module, an online adaptive learning module and the like. The method comprises the following steps: acquiring a blood smear image by a system under a narrow-band multi-spectrum condition, constructing cellular spectrum-morphological characteristics by combining a multi-scale segmentation result after noise suppression, flat field correction and background deduction, generating a discrimination index with a self-adaptive spectrum band weight, and completing joint classification and counting on a cell map; and meanwhile, carrying out constrained increment updating on the spectral band weight and the classification model by utilizing an artificial correction result of the low-confidence-coefficient cells. Compared with a traditional single-channel microscopic imaging and static classification method, the method has higher classification accuracy and counting stability under different dyeing and imaging conditions, and the workload of manual recheck can be reduced.

The invention provides a frequency interleaving system and electronic equipment, and the system comprises a sampling circuit which carries out the sampling of an input signal based on N sampling modules; the input signal is a continuous time analog signal, and the output signal of the sampling circuit is a discrete time analog signal; the frequency interleaver is used for decomposing the broadband signal output by the sampling circuit into N narrowband signals, and the spectral bandwidth of each narrowband signal is one sub-band of the spectral bandwidth of the input signal; the signal processing circuit is used for performing signal reconstruction on the output signal of the frequency interleaver based on a signal reconstruction unit; n is a natural number greater than or equal to 2. According to the frequency interleaving system and the electronic equipment, under the condition that the frequency of the high-frequency input signal is not mixed to the intermediate frequency or the baseband, the high-frequency analog input signal is directly sampled, and the robustness of errors between channels is realized by combining the frequency interleaver; the system overhead is small, the system implementation is simple, and frequency response mismatch is not introduced.

The application provides a receiving end filter and a preparation method thereof, and a combined filter, and belongs to the field of coating technology. The application solves the problem that the existing receiving end filter is relatively single. The receiving end filter comprises a glass substrate, a narrow-band pass film system and an anti-reflection film system. The narrow-band pass film system comprises silicon oxide film layers and hydrogenated silicon / hydroxylated silicon / nitrogen hydrogenated silicon film layers which are alternately deposited layer by layer, and a silicon oxide film layer as an outermost layer. The anti-reflection film system comprises silicon oxide film layers and hydrogenated silicon / hydroxylated silicon / nitrogen hydrogenated silicon film layers which are alternately deposited layer by layer, and a silicon oxide film layer as an outermost layer. The receiving end filter has the advantages that the overlapping high transmittance is achieved within an angle range of 0°-60° of an incident angle, and the demand cut-off spectrum band has the effect of inhibiting the transmission of light signals within the angle range of 0°-60° of the incident angle.

Spectrum allocation in non-terrestrial wireless networks is efficiently and intelligently managed by predicting traffic loads for beam cells using historical network traffic data and a trained model. Beam cells with higher predicted traffic loads are assigned larger spectrum bandwidths, while other beam cells are assigned smaller, non-overlapping bandwidths that dynamically change frequencies according to a predefined hopping sequence. Example solutions disclosed herein optimize bandwidth utilization and minimize interference, enhancing service quality and coverage in satellite communication systems.

Aspects relate to an integrated access backhaul (IAB) - distributed unit (DU) resource configuration framework for paired (e.g., frequency division duplex (FDD)) spectrum. For paired spectrum, two DU resource configurations per cell can be supported, including one for a first spectrum band (e.g., downlink band) of the paired spectrum and another for a second spectrum band (e.g., uplink band) of the paired spectrum. Each DU resource configuration can include a respective symbol pattern for a plurality of slots of a symbol type (e.g., downlink (DL), uplink (UL), flexible), and a corresponding availability attribute for each symbol type (e.g., hard, soft, or unavailable). A DU of an IAB node in an IAB network can receive the two DU resource configurations for the paired spectrum from a central unit (CU) of an IAB donor node in the IAB network.

A communication system is disclosed in which communication between a UE and a base station occurs in uplink only, downlink only, or full duplex, slots or symbols. Frequency resources are configured for communication in full duplex slots that include frequency resources for an uplink subband and / or frequency resources for a downlink subband. The frequency resources for the uplink subband, or the downlink subband, are distributed throughout a bandwidth of an unlicensed spectrum band, or throughout a bandwidth of a one or more subbands of an unlicensed spectrum band.

Wireless communication systems, including systems, apparatuses, and methods for measurement capability and configuration on shared spectrum terrestrial networks (TNs) and non-terrestrial networks (NTNs) are disclosed. A user equipment (UE) includes a transceiver and a processor configured to cause the UE to receive, via the transceiver, control signaling indicating a neighbor cell measurement configuration for a radio frequency (RF) spectrum band utilized by both a TN device and an NTN device to serve UEs. The processor is further configured to receive, via the transceiver and according to the indicated neighbor cell measurement configuration, reference signals of the RF spectrum band from the TN device and from the NTN device. The processor is further configured to perform a mobility operation based on the reference signals from the TN device, the reference signals received from the NTN device, or both.

Methods, systems, and devices for wireless communications are described where a system bandwidth within a shared radio frequency spectrum band may be divided into multiple sub-bands. A base station may use a fallback downlink control information format to provide a resource grant to a user equipment, where the fallback downlink control information has a predetermined number of bits. To provide an indication of one or more of the sub-bands that are to be used for uplink communications when using fallback downlink control information, an explicit or implicit indication may be provided. Such sub-band indication may allow for the user equipment to use a particular sub-band that is available for transmissions in a shared radio frequency spectrum band. Indications of one or more sub-bands may be provided explicitly by a sub-band indication field in a fallback downlink control information, or implicitly by one or more downlink transmissions of a base station.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine resource selection priority levels associated with available resources for sidelink signaling in an unlicensed radio frequency spectrum band, the resources selection priority levels may be determined based on resource reservation information of the available resources, a time domain location of the available resources, or both. For example, a first resource of the available resources may be associated with a higher priority than a second resource of the available resources in resource selection. The UE may select one or more resources for the sidelink signaling from the available resources based on the resource selection priority levels associated with the available resources. The UE may transmit the sidelink signaling on the unlicensed radio frequency spectrum band using the one or more selected resources.

Methods, systems, and devices for wireless communication are described. The method can include identifying, for a UE, a configuration of a set of sets of resource blocks of a radio frequency spectrum band, receiving, from a base station, a downlink control information message that indicates, for each set of resource blocks of the set of sets of resource blocks, a communication direction for the set of resource blocks, and communicating, with the base station, using one or more sets of resource blocks of the set of sets of resource blocks in accordance with one or more communication directions indicated by the received downlink control information message, the one or more communication directions corresponding to respective ones of the one or more sets of resource blocks.

The invention relates to the technical field of gas spectrum detection, and discloses a noise suppression non-negative matrix factorization gas cross interference removal measurement method and system, the noise suppression non-negative matrix factorization gas cross interference removal measurement system comprises a gas supply module, a detection module and a control analysis module, the gas supply module comprises a plurality of gas tanks, a dynamic gas mixing device, a pressure controller and a one-way valve, the plurality of gas tanks are respectively and independently connected with a gas inlet of the dynamic gas mixing device to form a plurality of independent gas paths, and the pressure controller is arranged between a gas outlet of the dynamic gas mixing device and a gas inlet pipeline of the multi-way gas pool; and one-way valves for preventing backflow and cross contamination are respectively arranged on the gas inlet and the gas outlet of the multi-way gas tank. The method can stably separate and quantify the ethylene / ethane near-infrared weak spectrum band with weak absorption and serious absorption spectrum overlapping, has obvious anti-noise and anti-interference capabilities, and is convenient for miniaturization, low power consumption and batch deployment.

The application relates to the technical field of automatic control, in particular to a control system for mosquito-killing lamps and a control method thereof, wherein the control system comprises the following modules: a mosquito behavior analysis module, a spectrum efficiency analysis module, a mosquito-trapping lamp parameter configuration module, a voltage parameter adjustment module and an automatic counting module; the application identifies the activity mode of mosquitoes by analyzing the relationship between the number of mosquito activities and various environmental conditions, optimizes the start-stop parameters and spectrum band selection of mosquito-killing lamps in combination with real-time monitoring of the environmental conditions, improves the adaptability and trapping effect of mosquito-trapping lamps, reduces the invalid working time, realizes real-time parameter adjustment of a high-voltage power grid by analyzing the voltage parameters required by various mosquito killing, optimizes the working efficiency of the power grid and reduces the energy consumption, counts the number of trapped mosquitoes in real time by analyzing the current change, evaluates the trapping efficiency, dynamically optimizes the working parameters of the lamps and the power grid according to the results, and improves the working efficiency and resource utilization efficiency.

Methods provided herein include minimizing spectrum fragmentation associated with reduced capability (RedCap) devices. The method includes receiving, at an access node, a request for resources from a wireless device in a network and identifying the wireless device as a reduced capability (RedCap) device. The method further includes allocating a physical resource block (PRB) to the RedCap device based on the request, and scheduling the PRB at an edge of a spectrum bandwidth based on the identification.

This invention addresses the problem of effectively filtering multi-band and multi-bandwidth spectral signals by proposing a differential bandpass filter with simultaneously adjustable bandwidth and frequency band, featuring reconfigurable center frequency and bandwidth. The differential bandpass filter structure has two main parts: a resonant inverter and a parallel resonator. The programmability and reconfigurability of the differential bandpass filter are achieved by adjusting the resonant characteristics of the even / odd mode sub-circuit network of the resonant inverter. The bandwidth can be adjusted when the relative relationship between these resonators and the transmission zeros of the parallel resonator changes; when all resonant points shift while maintaining their spectral bandwidth, the center frequency is tuned to a constant absolute bandwidth. Therefore, the center frequency and bandwidth of the differential bandpass filter can be arbitrarily reconfigured and programmed within their maximum range of variation.

Methods, systems, and devices for wireless communication are described. A wireless communication device may receive a control message via a first radio spectrum band, the control message comprising an uplink grant for transmitting one or more backscatter uplink messages via a second radio spectrum band, the second radio frequency spectrum band is higher in frequency than the first radio frequency spectrum band and is separated from the first radio frequency spectrum band by at least a threshold frequency gap. The wireless communication device may then receive the continuous waveform via the second radio spectrum band and modulate the continuous waveform with uplink data of the one or more backscatter uplink messages. The wireless device may then transmit a backscatter signal of the continuous waveform via a second radio spectrum band based on modulating the continuous waveform with the uplink data.

The invention discloses an underwater spectrum compensation method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring water transparency under a current water depth value and a historical water depth value; performing smooth filtering processing on the current water depth value based on the historical water depth value to obtain a smooth water depth value; determining a transparency gain factor based on the water transparency; performing gain processing on the smooth water depth value based on the transparency gain factor to obtain a target water depth value; based on the target water depth value, a control signal of the spectrum compensation assembly is generated, so that the spectrum compensation assembly adjusts the light transmittance of the preset spectrum band according to the control signal. The water transparency is introduced as a dynamic adjustment parameter, and the current water depth is smoothed in combination with historical water depth information, so that the stability of water depth evaluation is improved; therefore, a more accurate compensation control signal matched with the actual underwater optical environment can be generated, and the adaptability and compensation accuracy of the spectrum compensation assembly in the complex underwater environment are enhanced.

The invention provides a high-efficiency hyperspectral remote sensing image generation method based on spatial spectrum information self-selection. The method mainly comprises the following three core steps: 1, multi-level self-selection spatial feature coding; 2, multi-scale semantic fusion based on mixed pooling; and 3, spatial prior guidance and waveband relevance modeling. Starting from the characteristics of a hyperspectral remote sensing image generation task, a generation framework guided from spatial characteristics to spectral information driving is constructed, and a spatial-spectral information self-selection mechanism and a lightweight calculation strategy are introduced, so that the model can adaptively and dynamically pay attention to important spatial regions and spectral bands. The problems of insufficient physical consistency, redundant feature information, high video memory occupation and the like of a current hyperspectral remote sensing image generation method are effectively relieved, and the method has the advantages of high reconstruction precision, low calculation complexity, high training reasoning speed and the like; and high-quality hyperspectral remote sensing image data support can be provided for remote sensing downstream tasks such as image classification and change detection.

A method, system, and device for wireless communications are described. A user equipment (UE) can receive, while operating in a discontinuous reception mode, a grant for scheduling a sidelink data message for the UE on a shared radio frequency spectrum band, the grant indicating a set of feedback channel opportunities associated with the sidelink data message. The UE can transmit at least one feedback message indicating a feedback status of the sidelink data message during at least one feedback channel opportunity of the set of feedback channel opportunities. The UE can start a round-trip timer associated with the at least one feedback message based at least in part on the at least one feedback channel opportunity, during which the UE refrains from monitoring for retransmissions of the sidelink data message.

Provided is a process, including receiving, from a spectrum access system (SAS), an authorization to transmit on a radio spectrum band, wherein the radio spectrum band comprises frequencies between 3550 MHz and 3700 MHz, does not comprise frequencies lower than 3550 MHz, and does not comprise frequencies greater than 3700 MHz; and based on the authorization, instructing a plurality of radio access network (RAN) nodes to transmit communications on the radio spectrum band.

To provide time alignment of encoded data of an audio encoder with associated metadata, such as spectral band replication (SBR) metadata.SOLUTION: An audio decoder (100, 300) configured to determine reconstructed frames of an audio signal (237) from access units (110) of a received data stream is described. The access unit (110) includes waveform data (111) and metadata (112), where the waveform data (111) and the metadata (112) are associated with a same reconstructed frame of the audio signal (127). An audio decoder (100, 300) comprises a waveform processing path (101, 102, 103, 104, 105) configured to generate a plurality of waveform subband signals (123) from waveform data (111), and a metadata processing path (108, 109) configured to generate decoded metadata (128) from metadata (111).SELECTED DRAWING: Figure 1

A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a “mapping” (or “prediction”) matrix based on the analysis of a reference wideband signal and a reference narrowband signal, the mapping matrix being a transformation matrix to predict high frequency energy from a low frequency energy envelope, generating an energy envelope analysis of an input narrowband audio signal, generating a resynthesized noise signal by processing a random noise signal with the mapping matrix and the envelope analysis, high-pass filtering the resynthesized noise signal, and summing the high-pass filtered resynthesized noise signal with the original an input narrowband audio signal. Other embodiments are disclosed.

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may perform a cell search procedure to attach to a cell of a network entity. In some examples, if the UE is unable to determine an operating mode of the cell, the UE may receive one or more system information messages via the cell using a first operating mode associated with a shared radio frequency (RF) spectrum band. The one or more system information messages may indicate that the operating mode of the cell is either the first operating mode associated with the shared RF spectrum band or a second operating mode associated with a licensed RF spectrum band. Accordingly, the UE may establish a connection with the network entity via the cell using the operating mode indicated by the one or more system information messages.

The invention provides a micro grating spectrometer. The micro grating spectrometer comprises a shell; the dispersion element and the sensor assembly are arranged on the shell, incident light is dispersed into monochromatic light by the dispersion element along an incident light path and then is reflected to the surface of the sensor assembly at different angles, and spectral information of the incident light is acquired by the sensor assembly; a spectrum dark area is further arranged, and the spectrum dark area is located on a propagation path of the incident light along the incident light path and used for increasing reflection loss of a specific wave band and absorbing energy of a high-sensitivity spectrum band so as to reduce sensitivity differences of all the spectrum bands.

The invention discloses a laser-arc hybrid welding monitoring device and method for spectral band photoelectricity and images, and relates to the field of laser-arc hybrid welding monitoring. The laser-arc hybrid welding monitoring device comprises a welding platform assembly, a welding execution assembly, a spectrum-image cooperative monitoring assembly and an anti-interference protection assembly; the welding platform assembly comprises a welding base used for bearing a workpiece to be welded, and a welding part is placed on the welding base. The welding execution assembly comprises a welding gun and a laser emitting unit. According to the laser-arc hybrid welding monitoring device and method for the spectral band photoelectricity and the image, the anti-splashing air curtain is combined with the protection lens, and lens pollution is greatly reduced; and the temperature is accurately controlled through the spiral circulating cooling pipe, so that overheating of the sensor is avoided, and continuous work of the device is realized.