50 results about "Frequency allocation" patented technology

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.

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.

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.

This base station comprises: a control signal transmission / reception unit that receives, from a certain node, an identifier of a node to which the certain node is connected and an identifier of the certain node; and a frequency allocation unit that, on the basis of the identifier of the node to which the certain node is connected and the identifier of the certain node, allocates frequency bands such that the frequency bands do not overlap among any route from the certain node to the connected node.

Techniques for wireless communication are disclosed. In an aspect, a user equipment (UE) obtains one or more measurements on one or more sidelink positioning reference signal (SL-PRS) resources, and sends a sidelink positioning measurement report to a location server or another UE, the sidelink positioning measurement report comprises at least the one or more measurements and one or more sets of frequency allocation information parameters associated with the one or more measurements, wherein each of the one or more sets of frequency allocation information parameters associated with a measurement of the one or more measurements includes a start frequency position and a size of a frequency allocation for the measurement, or the start frequency position and an end frequency position for the measurement.

The invention relates to the technical field of power supply conversion, and discloses a method for improving the output efficiency of a BUCK / BOOST circuit, and the method comprises the steps: S1, detecting an input voltage, an output voltage and a load state, and determining that the circuit is in a BUCK mode, a BOOST mode or a BUCK and BOOST mode transition state; s2, in a BUCK mode; s3, in a BOOST mode; s4, in a transition state between a BUCK mode and a BOOST mode; and S5, the first frequency is used for executing energy conversion control. A first frequency and a second frequency are respectively adopted in a BUCK loop and a BOOST loop to carry out switching control, so that a main energy conversion loop works at the first frequency, a non-dominant loop is kept on or periodically on at the second frequency, and the frequencies of two groups of switching devices are distributed, so that an inductive current path is automatically distinguished along with modes, and the switching efficiency is improved. Therefore, a stable energy transfer relation is formed in a single mode.

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 invention discloses a power grid frequency distribution method and system, and relates to the technical field of power grid frequency distribution, quantitative analysis of a power grid power gap is realized by collecting wind power, load, unit and network parameters and analyzing wind power consumption space and supply and demand imbalance, a mutual balance index considering a power grid electrical structure and real-time transmission capability is introduced, and the power grid frequency distribution is realized. According to the method, optimal cooperation areas are dynamically divided, frequency modulation responsibility is fairly and efficiently distributed among electrically tight areas, maximization of wind power consumption and minimization of unit adjustment cost are taken as targets, a system can continuously and dynamically respond to uncertainty, and while clean energy utilization is maximized, conventional unit fluctuation is stabilized, the equipment loss risk is reduced, and the system reliability is improved. Therefore, the power grid can operate safely and stably for a long time.

A method performed by a wireless device of configuring uplink sounding transmissions is provided. The method includes receiving, from a network node, downlink control information, DCI. The DCI triggering a SRS transmission and includes a configuration parameter for uplink sounding reference signal, SRS, transmissions for the wireless device. The DCI further includes frequency domain resource assignment, FDRA, that indicates the frequency allocation for the triggered SRS transmission. The method further includes generating a sounding reference signal based on the received DCI. Methods performed by a network node is also provided.

A radar system for a vehicle includes a first radar sensor and a second radar sensor configured to transmit and receive radar signals in the same frame. A processor system coupled to the sensors transmits a first set of chirps from a first radar sensor and a second set of chirps from a second radar sensor. Each chirp has a specific start time and end time, and has frequency bands of different frequency ranges. The chirps from the two sensors are interleaved with each other such that the start frequency of the chirp of the second sensor lies between the start frequency and the end frequency of the chirp of the first sensor and the end frequency of the chirp of the first sensor lies between the start frequency and the end frequency of the chirp of the second sensor. Additionally, each chirp from the first sensor overlaps in time with at least a portion of the chirp from the second sensor.

This invention discloses a satellite internet communication method, comprising the following steps: frequency allocation, beam and covariance joint optimization, inter-satellite interference coordination, and user terminal reception processing. This invention achieves dynamic spectrum selection and collision avoidance through frequency allocation based on online learning and upper confidence boundary indexing; applies the uplink-downlink channel duality theorem for beam and signal covariance joint optimization to approach the multi-user and rate capacity limits; coordinates inter-satellite interference based on interference and noise ratio thresholds to achieve effective coexistence with the main satellite system; and employs a merging matrix co-designed with the transmitter for reception processing at the user terminal. This invention ensures decoding robustness in complex signal environments.

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.

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 a cooperative control wireless microphone anti-interference method and system, and relates to the technical field of wireless communication, and the method comprises the steps: collecting environment data, building a path loss model, calculating a minimum signal intensity threshold value, carrying out the fitting through combining actual measurement data, and generating a power-area corresponding table; performing frequency planning on the power-area corresponding table, generating a frequency allocation scheme, calculating a non-intermodulation frequency pool, and generating a frequency pair set; through a true diversity receiving method, monitoring the signal-to-noise ratio and the signal strength of received signals of the two paths of antennas in real time, comparing and switching to one path with a high signal-to-noise ratio and a stable signal, and generating an audio signal; and optimizing cooperative control according to the signal quality data fed back in real time, performing cooperative adjustment on the transmitting power, the working frequency and the receiving path, and generating an optimized audio signal and configuration information. According to the invention, high-efficiency operation of the wireless microphone system is guaranteed in a complex environment and a dynamic condition.

A device, method and computer program is described comprising: receiving configuration information from an access node of the mobile communication system, the configuration information including time and frequency allocation of RACH Occasions for the device, wherein first and second symbol types, each having a bandwidth, are available for transmission from the device to the access node, wherein in the said first symbol types the bandwidth is used for either uplink transmission or downlink reception and in the said second symbol types the bandwidth includes uplink and downlink sub-bands that are non- overlapping in the frequency domain; and determining an association period for the device, wherein the association period is sufficient to allow all synchronization signal block indexes to be mapped to at least one RACH occasion, as defined by said configuration information.

The invention discloses a brain magnetic compatible near-infrared channel arrangement and modulation frequency distribution method, and belongs to the technical field of multi-mode brain function imaging. In order to solve the problems that in the prior art, personalized optrode arrangement optimization is difficult, standardized meta-information files are tedious to generate, and brain magnetic compatible frequency distribution efficiency is low, optrode coordinates are constructed based on individual head three-dimensional information, the positions of a light source and a detector are optimized through a greedy algorithm, and optrode two-dimensional coordinates are adjusted through dimension reduction and nonlinear optimization; and an automatic scheme is generated by using a method for carrying out brain magnetic compatible frequency allocation by using a graph coloring algorithm. According to the method, the experimental channel scheme of the whole brain or the region of interest can be quickly generated, the standard file and the channel visualization graph can be automatically generated, the brain magnetic compatibility and the high frequency utilization rate are considered at the same time, and the method is suitable for multi-mode brain imaging experiment preparation and personalized helmet or flexible cap optrode design.

Methods, systems, and devices for wireless communications are described. The method may include a user equipment (UE) transmitting a capability message indicating a capability of the UE to support a positioning scheme for one or more reference signals within a precoding resource block group for a channel estimation procedure, receiving, based on the capability message, a control signal indicating a frequency allocation for the one or more reference signals for the channel estimation procedure, the frequency allocation for the one or more reference signals being based on the positioning scheme supported by the UE, receiving the one or more reference signals for the channel estimation procedure in accordance with the frequency allocation, and performing the channel estimation procedure using the one or more reference signals based on the precoding resource block group associated with the channel estimation procedure.

A radar system for a vehicle includes a first radar sensor and a second radar sensor, both configured to transmit and receive radar signals in the same frame. A processor system, coupled to these sensors, transmits a first set of chirps from the first radar sensor and a second set of chirps from the second radar sensor. Each chirp has specific start and end times, and frequency bands, with differing frequency ranges. The chirps from the two sensors are interleaved such that the start frequency of the second sensor's chirps lies between the start and end frequencies of the first sensor's chirps, and the end frequency of the first sensor's chirps lies between the start and end frequencies of the second sensor's chirps. Additionally, each chirp from the first sensor overlaps in time with at least a portion of the chirps from the second sensor.

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.

A device, method and computer program is described comprising: receiving configuration information from an access node of the mobile communication system, the configuration information including time and frequency allocation of RACH Occasions for the device, wherein first and second symbol types, each having a bandwidth, are available for transmission from the device to the access node, wherein in the said first symbol types the bandwidth is used for either uplink transmission or downlink reception and in the said second symbol types the bandwidth includes uplink and downlink sub- bands that are non-overlapping in the frequency domain; determining an association period for the said first slots, wherein the association period is sufficient to allow all synchronization signal block indexes to be mapped at least once to RACH occasions allocated in the first symbol type; and determining a variable K, wherein K association periods are required for mapping all synchronization signal block indexes relevant to full- duplex transmission at least once to additional RACH Occasions allocated in the second symbol type.

A computer-implemented method optimizes frequency assignments in a mobile communications network by specifying unplanned cells and potential frequencies for each cell, calculating frequency interference probabilities between cell pairs, formulating a stress function with terms connecting interference probabilities and frequency relations, and using a quantum concept processor to minimize the stress function for optimized frequency assignments.