113 results about "Frequency allocation" patented technology

The invention discloses a computer wireless network operation supervision system and method, and relates to the technical field of network security, and the method comprises the steps: collecting network state data; constructing a QUBO model, and solving and generating a network spectrum allocation strategy matrix through a quantum annealing machine; analyzing the network spectrum allocation strategy matrix, generating a network base station radio frequency parameter instruction set and a network terminal access strategy table, and adjusting a network flow table rule through an SDN controller; comparing the expected configuration network parameters with the new network state data, and positioning the root cause of the network abnormal condition; and redundant links in the network are screened out, an ant colony optimization algorithm is adopted to optimize a topological structure, a spectrum allocation strategy matrix is updated, fault nodes are isolated, and topological connection is reconstructed. According to the method, computer wireless network operation supervision is improved through the quantum annealing machine, and in the aspect of spectrum resource allocation, the quantum annealing machine solves by constructing a QUBO model, so that optimization of frequency allocation and transmitting power is realized.

The invention relates to the technical field of radar measurement, in particular to a radar height measurement and radio frequency transceiving integrated system which comprises a signal processing module, a channel linkage scheduling module, a path stability judgment module, a frequency distribution management module and a positioning path feedback module. According to the invention, through amplitude peak point and time drift extraction, energy sudden change identification precision is enhanced, signal feature discrimination is improved, a screening channel is matched by using a beam main lobe and an energy center, efficient coupling of direction and energy is realized, path stability analysis introduces power attenuation and energy continuity evaluation, and available section identification accuracy is improved. The signal-to-noise ratio and the channel stable value are considered in frequency selection, the path spectrum utilization continuity is enhanced, frequency mapping is combined with round-trip time difference and height point coverage, the vertical positioning precision and the beam drop point judgment capability are improved, and the adaptability and reliability of radar measurement in a dynamic environment are integrally enhanced.

Systems, methods and apparatus for automatic alarm management in a radio-frequency (RF) environment are disclosed. An apparatus calculates a power distribution by frequency of the RF environment in real time or near real time, including a first derivative and a second derivative of FFT data of the RF environment. The apparatus then creates a baseline based on the power distribution by frequency of the RF environment in a period of time, identifies at least one alarm situation based on a multiplicity of alarm triggering conditions by comparing the power distribution in real time or near real time to the baseline of the RF environment, identifies at least one signal based on the first derivative and the second derivative of FFT data in the at least one alarm situation, and sends at least one alarm comprising details of the at least one signal identified in the at least one alarm situation.

The invention discloses an overhead transmission tower lightning current monitoring system and method, and the method comprises the following steps: installing a multi-mode sensor module on a tower, and collecting a lightning current signal and structure response data; utilizing a local sparse dynamic window optimization algorithm to process the data segment by segment, extracting dynamic features and generating a multi-scale feature map; modeling a lightning stroke propagation rule through a space-time generative adversarial network, and generating a space-time characteristic matrix; constructing a spatial correlation map by combining a hypergeometric map embedding algorithm, and identifying a lightning stroke influence range and a diffusion path; dynamically adjusting a communication path and frequency distribution by adopting a Bayesian game optimization model; analyzing the potential influence of lightning stroke on the structure based on a multi-task self-supervised learning model, and predicting a time evolution trend; and comprehensively evaluating real-time and historical data through the remote monitoring terminal, and generating a risk prediction report and a protection reinforcement strategy. According to the invention, the problems of real-time performance, accuracy and environmental adaptability of lightning current monitoring are solved.

The invention provides a pulse modulation LED dimming system and method based on an STM32 single-chip microcomputer. The system is mainly composed of an STM32F103C8T6-single-chip microcomputer module, an OLED display module, a signal acquisition module, a matrix key module, a Bluetooth module, an LED lamp module and the like. The system method comprises the following steps: step 1, optimizing a hybrid modulation strategy and carrier allocation, and establishing a dynamic carrier frequency allocation model through a multi-mode hybrid scheme fusing pulse width modulation and pulse density modulation; step 2, collecting an LED load current waveform in real time through a current sampling module, dynamically adjusting a gain coefficient based on a harmonic distortion rate, and counteracting a main harmonic component of a current signal in real time; and step 3, implementing nonlinear compensation of volt-ampere characteristics. The system supports 0%-100% stepless dimming, brightness adjustment is smooth and flicker-free, the system has four dimming modes of normally-on, single-point, circulating and sliding, matrix key local control and Bluetooth remote control are supported, and a flexible and stable LED dimming scheme is provided for a user.

The invention discloses a load-balanced low-orbit satellite general computation resource collaborative allocation method and system, and belongs to the technical field of low-orbit satellite resource allocation, and the method comprises the steps: building a model with the maximization of the task completion rate as the target, obtaining a computation scheduling sub-model and a flow scheduling sub-model through Lagrange dual decomposition decoupling, and achieving the collaborative allocation of low-orbit satellite general computation resources. The calculation scheduling sub-model determines a calculation decision through linear solution and node preliminary screening, the flow scheduling sub-model is converted into a maximum flow model based on a storage time aggregation graph, a link rate and a calculation frequency distribution decision are obtained through solution, continuous iteration is carried out to convergence by utilizing a gradient method, and an optimal decision of calculation scheduling and flow scheduling is obtained; according to the method, the problem of load imbalance of the low-orbit satellite is solved, space-time joint scheduling of communication and computing resources is realized, network throughput and resource efficiency are improved, congestion and overload are avoided, the task completion rate is remarkably improved, and the performance is superior to that of an existing algorithm.

Methods, systems, and devices for wireless communications are described. In some examples, a UE may receive an indication of a set of sounding reference signal (SRS) parameters corresponding to a set of SRS resources for transmitting SRSs, where the set of SRS resources may refer to frequency, or time, or both. In some examples, the SRS parameters may include, among other examples, a frequency allocation, a frequency overlap parameter, a number of allocated symbols, a comb value, a cyclic shift, a comb offset, a frequency hopping parameter, a repetition parameter, a symbol grouping parameter, or any combination thereof. The UE may determine an SRS configuration for the one or more SRSs based on the set of SRS parameters and transmit the one or more SRSs based on the configuration. In some examples, the SRS configuration includes a configuration for SRS frequency hopping, or SRS repetition, or both.

A method, performed by a network node, is disclosed for handling positioning of a User Equipment, wireless device. The network node obtains a first approximate position of the wireless device, based on a first positioning procedure for the wireless device in a first frequency allocation. The network node determines, based on the first approximate position of the wireless device, a set of resources to be used for a second positioning procedure in a second frequency allocation. The network node initiates the second positioning procedure in the second frequency allocation using the determined set of resources. The network node obtains an updated position of the wireless device based on the second positioning procedure.

The invention relates to the technical field of liquid crystal display, and discloses a liquid crystal display module driving method. The method comprises the following steps: performing pixel time sequence analysis on a liquid crystal display module, and establishing a pixel addressing model; the liquid crystal display module is divided into a dynamic display area and a static display area according to the pixel addressing model, and a double-frequency partition scanning driving framework is obtained; submatrix division and submatrix importance level calculation are carried out on the liquid crystal display module based on a double-frequency partition scanning driving framework, and a differential refresh frequency distribution table is obtained; comparing the current frame with the previous frame of the liquid crystal display module according to the differential refresh frequency distribution table, and identifying a changed pixel region to obtain a differential update data packet; and transmitting the differential update data packet, adjusting a gamma correction parameter and a driving voltage parameter, and outputting a target driving control instruction. According to the invention, collaborative optimization of time domain and space domain of the liquid crystal display module is realized, and the driving display precision of the liquid crystal display module is improved.

The invention discloses a wireless communication network frequency planning method based on a genetic algorithm, and relates to the technical field of wireless communication network frequency planning, and the method comprises the steps: collecting network flow, user distribution, base station position, antenna direction and historical interference data, and carrying out the preprocessing of the collected data; integrating the preprocessed data, calculating an interference value, identifying a cell pair with an interference relationship, and evaluating the interference condition in the current network to obtain an interference evaluation result; formulating a dynamic frequency reuse strategy and adjusting a frequency reuse mode based on the interference assessment result as a basis for formulating the dynamic frequency reuse strategy; constructing an interference prediction model by adopting a random forest algorithm, and outputting predicted interference cell pairs and interference degrees; adjusting frequency allocation according to the predicted interfering cell pair and the interference degree; and taking a frequency allocation adjustment result as an initial population optimized by the genetic algorithm, performing fitness evaluation on each individual, and performing iterative updating according to a fitness evaluation result.

The invention discloses a visual configuration method, device and equipment for train line communication frequency and a medium, and the method comprises the steps: responding to a line selection instruction, and determining a target line which is not allocated with communication frequency on a visual line interface of an existing line; based on the candidate distribution frequency groups, according to the position relation of the stations in the target line, distributing communication frequency pairs for the stations in the target line, and generating at least two frequency distribution strategies of the target line; based on a communication interference verification rule, interference verification is carried out on a target frequency distribution strategy, a target site with communication interference is determined, and highlight display is carried out on the target site of the target line in the visual line interface; and synchronously performing interference elimination processing on the target station. According to the technical scheme, the maintenance and management efficiency of the train digital wireless dispatching communication system is improved.

A wireless device receives radio resource control messages including a first bitmap, of frequency allocation of a search space (SS), with each bit indicating whether frequency resources of the SS are mapped to a respective resource block (RB) set of RB sets of a bandwidth part. Based on the first bitmap indicating that the SS is mapped to first RB sets of the RB sets, a physical downlink control channel (PDCCH) is monitored via the SS in the first RB sets. A first downlink control information is received that includes a second bitmap, of RB set indication, with each bit indicating whether a respective RB set, of the RB sets, is available for downlink reception. Based on the first bitmap and based on the second bitmap indicating a second RB set of the first RB sets as being available for downlink reception, the PDCCH is monitored via the SS in the second RB set.

In the present invention, an optical path-designing device, by using a scheme that has been reinforcement-trained so as to reduce the amount of optical fiber resources used in an optical network having a plurality of nodes connected by optical fibers, selects an optical path demand to which the optical fiber resources are to be allocated, on the basis of frequency allocation state information indicating available frequencies in each of the optical fibers and optical path demand group information indicating a plurality of optical path demands indicated by combinations of start point nodes and end point nodes. The optical path-designing device refers to the frequency allocation state information, and determines a path and a frequency in the optical network to be allocated to the selected optical path demand such that a low or high frequency is given higher priority.

The disclosed technology provides a system and method for allocating frequency bands to a mobile device or user equipment (UE) based on priorities assigned to the different frequency bands. When no priority is assigned to the frequency bands, when a special or reserved priority is assigned, or when equal priority is assigned, the frequency band allocation to the UE is based on a default frequency allocation algorithm (e.g., based on a relative bandwidth of the different frequency bands). When a UE is capable of utilizing a first and a second frequency band, and the priority assigned to the first frequency band is higher than the priority assigned to the second frequency band, the network (e.g., eNB / gNB) overrides the default algorithm and preferentially allocates the first frequency band to UE even when the first frequency band has a smaller bandwidth than the second frequency band or when the default algorithm would otherwise prefer the first frequency band.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may account for the application of orthogonal cover coding (OCC) to an uplink transmission when determining the transport block size (TBS) for the uplink transmission. OCC may be used to multiplex transmissions from multiple UEs and may involve spreading information. Described techniques may involve accounting for the spreading of information bits when determining the TBS for the uplink transmission to which OCC is applied. Sub-physical resource block (sub-PRB) frequency allocations may be provided for uplink transmissions. The UE may account for the allocated quantity of sub-carriers when determining the quantity of information bits. To indicate a sub-PRB, the UE may be configured to reinterpret one or more fields of an existing downlink control information (DCI) format as indicating the allocated sub-carriers, or a new DCI format may be configured that includes fields for indicating a sub-PRB allocation.

An exemplary sound processor is configured to direct a cochlear implant to apply standard electrical stimulation representative of frequencies in an audio signal that are within an upper region to a cochlea of a first ear of a recipient by way of a plurality of electrodes in accordance with a frequency allocation table that maps frequencies in the upper region of the audible frequency range of the recipient to the plurality of electrodes, the upper region of the audible frequency range comprising frequencies above and including a cutoff frequency, and direct the cochlear implant to apply electrical stimulation representative of frequencies in the audio signal that are within a lower region of the audible frequency range to the cochlea of the first ear by way of a most apical electrode and one or more compensating electrodes included in the plurality of electrodes in accordance with an electrode stimulation configuration.

A method and apparatus are provided for assigning a user equipment transmitter local oscillator frequency including informing the network of a capability of the user equipment to adjust a frequency location of a transmit local oscillator of the user equipment, to a frequency location which has been indicated by the network, within a predefined channel frequency spectrum. The frequency location identification to be used to adjust the frequency location of the transmit local oscillator is received from the network. The frequency location of the local oscillator is then adjusted in accordance with the frequency location identification received.

The present disclosure provides a method and related devices for optimizing the coverage of high-orbit high-throughput satellites based on machine learning, which are characterized by including: obtaining demand information of users for satellite communication; performing clustering processing on the demand information to obtain a number of boundary points, and determining the coverage range of satellite beams according to the number of boundary points; determining a spatial topology graph of the adjacency relationship between satellite beams in the coverage range based on the spatial topology relationship between satellite beams in the coverage range; performing coloring processing on the satellite beams in the spatial topology graph through an overlay analysis method to obtain colored satellite beams; and performing frequency allocation on the colored satellite beams.

A method performed by a wireless device of configuring uplink sounding transmissions is provided. The method includes receiving, from a network node, receiving, from a network node, different sets of configuration parameters for sounding signal transmissions for the wireless device. Each of the different sets of configuration parameters includes a time-domain parameter and different frequency allocations. The method further includes receiving, from the network node, downlink control information, DCI, comprising information that indicates which of the configured frequency allocations that should be applied for the SRS transmission. Furthermore, the method includes generating a sounding reference signal based on the received DCI.

The invention discloses an energy efficiency optimization method of a mobile edge computing system based on an integrated network. The method comprises the following steps: constructing a mobile edge computing system supported by a space-air-ground integrated network; for a mobile edge computing system, a joint optimization problem is constructed with the purpose of maximizing the total energy efficiency of the system, and the joint optimization problem is used for joint optimization of the flight path of an unmanned aerial vehicle, the transmitting power of a mobile user, the task unloading decision of the mobile user and the incidence relation between the mobile user and the unmanned aerial vehicle. Calculating frequency distribution of the mobile user, the unmanned aerial vehicle and the low earth orbit satellite; and decomposing the joint optimization problem into a sub-problem of optimizing an incidence relation between the mobile user and the unmanned aerial vehicle, a sub-problem of optimizing a task unloading decision of the mobile user, a sub-problem of optimizing transmitting power control and calculating frequency allocation and a sub-problem of optimizing an unmanned aerial vehicle track, and solving by alternately optimizing each sub-problem. According to the invention, the total energy efficiency of the system and the service quality of users are improved.

An antenna array of frequency-independent phase shifters may be configured to provide band-specific beamforming over a plurality of operating bands by determining, based on a first frequency allocation on a first operating band with first angular directions, at least a second frequency allocation on a second operation band with a second angular directions, so that a first set of predefined requirements comprising at least beamforming requirements on frequency allocations and angular directions are met on all operating bands, determining beamforming weights, and configuring the antenna array to apply the beamforming weights.

Described herein are systems, methods, and other techniques for aligning a terminal in a satellite communication system. An indicator of a test slot is sent to the terminal to designate a specific frequency allocation for testing. The satellite obtains a set of multi-slot power measurements based on signals received, including a first signal transmitted by the terminal on the test slot. The measurements are transmitted by the satellite to a ground station in a second signal. A set of power measurements specifically for the test slot are extracted from the multi-slot power measurements. The extracted power measurements are transmitted by a gateway to the satellite in a third signal and then from the satellite to the terminal in a fourth signal. These power measurements are utilized by the terminal to perform pointing and cross polarization alignment and power adjustment.

There is provided a a user equipment comprising: means for receiving from a network, information indicative of a format for a time slot associated with a first frequency allocation to provide interleaved full duplex operation, the first frequency allocation comprising a first set of first subcarriers and a second set of second subcarriers, the first and second subcarriers being interleaved, said information indicating one or more of the first set of first subcarriers of the first resource block to be used for transmitting to the network by the user equipment, a respective subcarrier of the second set of second subcarriers of the first frequency allocation being one of unscheduled or scheduled to a user equipment; and means for transmitting signals to the network on one or more of the first set of first subcarriers of the first frequency allocation.

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may consider applying orthogonal coverage coding (OCC) to an uplink transmission when determining a transport block size (TBS) for the uplink transmission. The OCC may be used to multiplex transmissions from multiple UEs and may relate to extension information. The described techniques may involve considering an extension of information bits in determining a TBS for an uplink transmission to which OCC is applied. A sub-physical resource block (sub-PRB) frequency allocation may be provided for uplink transmissions. The UE may account for the number of allocated subcarriers in determining the number of information bits. To indicate the sub-PRB, the UE may be configured to re-interpret one or more fields of an existing downlink control information (DCI) format as indicating the allocated sub-carrier, or may configure a new DCI format including a field for indicating the sub-PRB allocation.

Certain aspects of the present disclosure provide techniques for subband full duplex (SBFD) transmission / reception across SBFD and non-SBFD symbols. An example method, performed at a user equipment (UE), generally includes obtaining signaling indicating 1) a first one or more symbols configured as subband full duplex (SBFD) symbols with a frequency allocation that includes at least one downlink subband and at least one uplink subband, 2) a second one or more symbols configured as non-SBFD symbols, and 3) whether operation of the UE is subject to one or more restrictions for transmission or reception of signals across the first one or more symbols and the second one or more symbols, and processing signals in at least one of the first one or more symbols or the second one or more symbols, in accordance with the signaling.

The application is suitable for the field of communication technology, and provides a global frequency planning method and system based on graph coloring and cost function, the method comprising: obtaining site information of to-be-planned frequencies, outputting a division result about a sub-connected graph according to the site information, and performing frequency point allocation through a graph coloring algorithm according to the principle that the frequencies between directly connected adjacent sites are different; traversing all sites, and counting a site set which has not been allocated frequencies; judging whether the site set is empty or not, when the site set is not empty, calculating an interference cost function when the site which has not been allocated frequencies and its directly connected sites are allocated the same frequency, and performing frequency allocation according to the principle that the minimum cost function is optimal, until the site set is empty, the embodiment of the application can realize automatic and rapid global frequency planning according to site positions and user working probability and other information, and can effectively reduce mutual interference between sites.

Various techniques are provided for a method that may include generating an additional frequency shift for wireless transmission, generating a frequency shift pattern based on a standard carrier frequency and the additional frequency shift, communicating, by a base station to a user equipment, information related to the additional frequency shift, and communicating, by the base station to the user equipment, a data stream using the frequency shift pattern.

This invention discloses a dynamic frequency allocation method for wireless communication networks, belonging to the field of wireless communication processing technology. Through offline measurement and model identification, a quantitative relationship between the input signal of the preceding time slot and the nonlinear distortion at the current moment is established. Historical usage sequences of frequency bands and power are collected and stored in real time, providing the input signal characteristics of the preceding time slot for memory effect residual assessment. Combining the historical usage sequences with the memory effect model, the residual intensity of the memory effect in each frequency band is calculated in real time, providing a quantitative basis for frequency band scheduling. Protective time slots are set for high-residual frequency bands to avoid their use before the memory effect has completely disappeared. Low-residual frequency bands are preferentially allocated to high-power users through priority ranking. The memory effect residual of power amplifiers is compensated in real time by dynamically updating the predistortion coefficients. The predistortion coefficients are adjusted according to the preceding and current signal characteristics to ensure good predistortion performance in different operating scenarios.

Certain aspects of the present disclosure provide techniques for wireless communication by a first network entity of a first network of a first network operator. A method includes receiving, from a second network entity of a second network of a second network operator, frequency allocation information indicating a first allocation pattern identifying, for each of at least one cell, a corresponding frequency channel band of a frequency band spanning a plurality of frequency channel bands, wherein the first allocation pattern identifies a first frequency channel band of the plurality of frequency channel bands for a first cell of the at least one cell; and sending an indication to at least a first user equipment (UE) indicating to communicate in the first cell using a second frequency channel band of the plurality of frequency channel bands that is different than the first frequency channel band.

Systems, methods, and apparatus for automatic signal detection in a radio-frequency (RF) environment are disclosed. At least one node device is in a fixed nodal network. The at least one node device is operable to measure and learn the RF environment in a predetermined period based on statistical learning techniques, thereby creating learning data. The at least one node device is operable to create a spectrum map based on the learning data. The at least one node device is operable to calculate a power distribution by frequency of the RF environment in real time or near real time, including a first derivative and a second derivative of fast Fourier transform (FFT) data of the RF environment. The at least one node device is operable to identify at least one signal based on the first derivative and the second derivative of FFT data.