3374 results about "Transposer" patented technology

The present application relates to PPP-RTK, RTK, SSR, or like correction data based devices and methods to produce geolocation solutions with improved accuracy. Further, such devices and methods may be further employed in various related utility locator devices, utility locating transmitters, and other utility locating and mapping devices.

An apparatus in one embodiment comprises at least one wearable device, with the at least one wearable device comprising at least one of a transmitter and a receiver of a wireless transmitter-receiver pair. The transmitter of the wireless transmitter-receiver pair transmits an acoustic signal, and the receiver of the wireless transmitter-receiver pair receives the acoustic signal. The received acoustic signal is processed utilizing a machine learning system to detect at least one characteristic of a user of the at least one wearable device. In some embodiments, a given wearable device comprises at least first and second wireless transmitter-receiver pairs, with the transmitter of each of the first and second wireless transmitter-receiver pairs transmitting an acoustic signal having a different carrier frequency. In such embodiments, a multi-channel echo profile may be generated using the multiple acoustic signals and classified by the machine learning system to detect the at least one characteristic.

Disclosed are techniques for wireless environment sensing. In aspects, a device-equipped target object receives a radio frequency (RF) sensing signal from a transmitter device, the RF sensing signal configured to enable a sensing device to sense target objects in an environment of the sensing device, the target objects including the device equipped target object. The device-equipped target object transmits an RF sensing response signal to the sensing device in response to reception of the RF sensing signal. In an aspect, a sensing device receives an RF sensing response signal from a device-equipped target object, the RF sensing response signal configured to enable the sensing device to sense the device-equipped target object in an environment of the sensing device. The sensing device detects a presence of the device-equipped target object in the environment of the sensing device based at least on the RF sensing response signal.

The present disclosure provides a communication apparatus comprising: circuitry, which, in operation, generates at least one signal, wherein a part of the at least one signal is configured for a first station of a first generation and another part of the at least one signal is configured for a second station of a second generation in a sounding procedure; and a transmitter, which, in operation, transmits the at least one signal.

Apparatuses, methods, and systems are disclosed for determining a resource for a channel state information report. One method (600) includes receiving (602), from a transmitter device, a channel state information reference signal within a data region and a channel state information request indicator in sidelink control information. The method (600) includes determining (604), at a receiver device, a resource for transmitting a channel state information report in response to the channel state information request indicator using a mode 1 resource allocation procedure, a mode 2 resource allocation procedure, or a combination thereof. The method (600) includes transmitting (606), from the receiver device, the channel state information report via a medium access control control element using the resource.

An apparatus may include a transmitter and one or more processors. The one or more processors may identify, based on a first parity check matrix of a first quasi-cyclic-low-density parity-check (QC-LDPC) code according to a code rate of 3 / 4, a second parity check matrix corresponding to a first exponent matrix comprising 576 values for a second QC-LDPC code. The second QC-LDPC code may have a code block size that is twice a code block size of the first QC-LDPC code. The one or more processors may encode data using the second parity check matrix. The transmitter may be configured to transmit the encoded data.

A user equipment (UE) is disclosed that receives configuration information for a resource for a downlink reference signal and measures the downlink reference signal based on the configuration information. The UE reports information to the access network node, based on the configuration information and the measurement. The reported information includes information for configuring a first transmitter parameter configuration for at least one physical downlink shared channel (PDSCH) transmitted in at least one time resource configured for downlink communication, and information for configuring a second transmitter parameter configuration for at least one PDSCH transmitted in at least one time resource configured for full duplex communication.

An apparatus may include a transmitter and one or more processors. The one or more processors may identify, based on a first parity check matrix of a first quasi-cyclic-low-density parity-check (QC-LDPC) code according to a code rate of 5 / 6, a second parity check matrix corresponding to a first exponent matrix comprising 384 values for a second QC-LDPC code. The second QC-LDPC code may have a code block size that is twice a code block size of the first QC-LDPC code. The one or more processors may encode data using the second parity check matrix. The transmitter may be configured to transmit the encoded data.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Specifically, the disclosure related to method and apparatus for measuring positioning reference signal in a wireless communication system. The method and apparatus for performing a receiver and a method and apparatus for performing a transmitter in a wireless communication system, as well as a transmitter device and a receiver device are provided herein. Wherein, a method performed by a receiver in a communication system, comprises: acquiring configuration information of a reference signal for positioning: performing a carrier phase-based positioning measurement based on the configuration information: and reporting and / or transmitting a result of the carrier phase-based positioning measurement.

An apparatus may include a transmitter and one or more processors. The one or more processors may identify, based on a first parity check matrix of a first quasi-cyclic-low-density parity-check (QC-LDPC) code according to a code rate of 2 / 3, a second parity check matrix corresponding to a first exponent matrix comprising 768 values for a second QC-LDPC code. The second QC-LDPC code may have a code block size that is twice a code block size of the first QC-LDPC code. The one or more processors may encode data using the second parity check matrix. The transmitter may be configured to transmit the encoded data.

The invention provides a covert communication method based on near-field broadband super-large-scale array beam splitting. Comprising the following steps: S1, according to an applied near-field covert communication scene, constructing a corresponding communication model by using a beam splitting effect in a broadband XL-MIMO system, carrying out beam training, and describing a received signal expression of the communication model; s2, constructing a signal detection model of a listener according to a near-field covert communication scene, and describing a detection error probability expression and a covert constraint expression; and step S3, the hidden transmission rate is maximized by optimizing the transmitting power and the subcarrier number of the transmitter. According to the method, the two-dimensional optimization problem related to the transmitting power and the subcarriers is converted into the one-dimensional optimization problem related to the discrete variable quantum carrier number, and the concealment rate of a legal receiver is maximized.

The invention belongs to the technical field of communication, and discloses a positioning method and system based on differential time delay and an alternating direction multiplier method, and the method comprises the steps: obtaining the position information and differential time delay of a receiver; performing joint estimation on the position of the target object and the position of the transmitter based on an alternating direction multiplier method; wherein during joint estimation, a first variable and a second variable are introduced, an original optimization problem is decomposed into two sub-problems related to the first variable, the second variable and a Lagrangian multiplier coefficient during iterative calculation in the joint estimation process, and in each iterative process, analytical solutions of the two sub-problems are solved respectively; and updating the first variable, the second variable and the Lagrange multiplier coefficient. According to the method, the accuracy of target object position estimation can be improved while the calculation complexity can be remarkably reduced.

An apparatus may include a transmitter and one or more processors. The one or more processors may identify, based on a first parity check matrix of a first quasi-cyclic-low-density parity-check (QC-LDPC) code according to a code rate of 1 / 2, a second parity check matrix corresponding to a first exponent matrix comprising 1152 values for a second QC-LDPC code. The second QC-LDPC code may have a code block size that is twice a code block size of the first QC-LDPC code. The one or more processors may encode data using the second parity check matrix. The transmitter may be configured to transmit the encoded data.

Wireless sensing using measurement enhancement is described. In one example, a described method comprises: receiving a wireless signal transmitted by a transmitter through a wireless multipath channel of a venue, wherein the received wireless signal differs from the transmitted wireless signal due to the wireless multipath channel and a motion of an object in the venue; obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the received wireless signal, wherein each channel information (CI) comprises N1 CI components (CIC); for each respective CI having N1 CIC of the TSCI, computing a respective enhanced CI (ECI) having N2 CIC; computing a motion information (MI) based on the ECI of the TSCI; and performing a sensing task based on the MI.

The invention relates to the technical field of intelligent communication, and discloses an end-to-end optimization method, a signal constellation geometry and probability joint shaping optimization method in an end-to-end intelligent communication system, and a communication device based on a neural network. According to the method, a transmitter is constructed by using a neural network, and a received signal passes through a two-stage equalization processing system to form an end-to-end optimization framework without assistance of a channel model. The transmitter adopts a modular design, can realize joint optimization of constellation probability shaping (PS) and geometric shaping (GS), and performs joint updating on all trainable parameters of the system based on a total loss function containing an equilibrium error and a decoding error through a back propagation algorithm. According to the invention, computing resources are effectively saved; the two-stage equalization system can accurately compensate channel damage, the realized PS and GS joint optimization can significantly improve the performance of the communication system and reduce the bit error rate, and the method has good performance advantages and practical value in an actual optical fiber communication system.

The invention discloses an inter-Doppler interference suppression method based on a Gaussian learning factor particle swarm algorithm. The inter-Doppler interference suppression method comprises the following steps that pilot frequency and data symbols are coded to a resource grid of a two-dimensional time delay Doppler domain through orthogonal time-frequency space modulation; on a transmitter, mapping data on a time delay Doppler domain grid to a time-frequency domain through inverse symplectic finite Fourier transform to obtain a time-frequency domain signal; performing Hisenberg transformation on the time-frequency domain signal to obtain a time domain sending signal; obtaining a time domain receiving signal after the time domain sending signal passes through a wireless channel; performing Doppler compensation processing on the time domain receiving signal by using Doppler frequency shift to obtain a signal after Doppler compensation; then performing matched filtering on the signal after Doppler compensation and a received pulse, and sampling to obtain a matched filter output signal; and the matched filter output signal is subjected to the Sextile Fourier transform to obtain a time delay Doppler receiving signal. The method can realize suppression of inter-Doppler interference to a certain extent.

The invention provides an all-digital beamforming transmitter and an all-digital beamforming transmitting method based on a digital radio frequency technology. The all-digital beam forming transmitter provided by the invention comprises a plurality of baseband signal generators, a quadrature modulator, an adder, a 1-bit increment integral modulator, a digital-to-analog converter, a radio frequency front end and an antenna which are connected in sequence, each baseband signal generator is connected with one path of quadrature modulator and one antenna, one path of quadrature modulator comprises a plurality of quadrature modulators, and each baseband signal generator generates a pair of baseband signals; the number of the quadrature modulators in the one-path quadrature modulator is the same as the number of the adders, the number of the 1-bit incremental integral modulators, the number of the digital-to-analog converters, the number of the radio frequency front ends and the number of the antennas; the number of the baseband signal generators is the same as the number of wave beams formed by the antenna, and the number of the baseband signal generators is different from the number of the quadrature modulators in one path of quadrature modulator.

The invention discloses a sea surface channel prediction method based on equipment pitching motion characteristics, which comprises the following steps of: in a modeling stage, setting coordinates according to a general application scene, simulating heaving and pitching motion of a transceiver according to system parameters and sea surface environment parameters, establishing SW-GBSM according to a motion track to model a channel, and obtaining channel impulse response; calculating the antenna position offset of the transceiver at the same time according to the motion trail, and obtaining the sea wave characteristics of the transceiver; and in the prediction stage, frequency domain conversion is performed on the channel impulse response of the time domain, and the sea wave characteristics SWF-TA of the transmitter and the receiver and the frequency domain channel response are spliced and then input into the SWF-GRU channel prediction network. In the SWF-GRU, the cascaded GRU updates the hidden state of itself according to an input sequence, and then the full connection layer maps the final hidden state of the GRU into a channel prediction result. According to the method, the channel modeling effect of a real sea surface environment is met, and the sea surface channel prediction performance is greatly improved on the premise of increasing relatively low calculation complexity.

The utility model provides a power calibration system of a solid-state high-power AM short-wave transmitter, relates to the technical field of radio and television, and adopts the technical scheme that the system can quickly respond to power deviation and continuously adjust parameters of excitation signals through a control mechanism based on real-time feedback, so that the output power is accurately controlled. After the exciter unit receives the control signal sent by the computer, the optimized excitation signal can be generated, it is ensured that the input signal received by the power amplifier unit is adjusted in advance, and the power amplifier efficiency and the output signal quality can be improved. And the power amplifier unit amplifies the optimized excitation signal into a high-power radio-frequency signal and outputs the high-power radio-frequency signal to complete the whole power amplification process. Through cooperative work of the computer, the exciter unit, the power amplifier unit, the frequency spectrograph and the power meter, a closed-loop control system is formed, and high-precision and high-efficiency power calibration can be realized.

The invention provides a communication method and a related device. In the method, after a baseband chip obtains a first symbol sequence to be transmitted, modulation is carried out based on a third symbol sequence containing extended symbols and symbols to be transmitted in the first symbol sequence, and after (N + M) modulation symbols are obtained, the (N + M) modulation symbols are mapped to RE to obtain a second symbol sequence. The second symbol sequence is continuous in phase, and the difference between the head phase and the tail phase is an integral multiple of 2 pi. The CP of the OFDM baseband signal generated by the second symbol sequence and the signal body are continuous in phase, and phase jump does not exist. A phase or frequency modulation mode, such as CPM or LFM, is further adopted for modulation, a waveform with a continuous phase and a constant amplitude can be obtained, and therefore a constant envelope waveform can be obtained. When the method is applied to communication equipment, such as IoT (Internet of Things) equipment, the structure of a transmitter can be simplified, the transmission power consumption is reduced, and the standby life is prolonged.

Systems, apparatuses, methods, and computer-readable media are provided for wireless communication using an unlicensed spectrum. An access point (AP) operating in the unlicensed spectrum includes a processor circuitry, a transmitter, and a receiver. The processor circuitry is configured to perform a listen before talk (LBT) procedure using an LBT parameter and a maximum channel occupancy time (MCOT) that is compatible with another wireless protocol using the unlicensed spectrum. The processor circuitry is configured to divide a transport block (TB) into a plurality of code block groups (CBGs) for transmission over the unlicensed spectrum. The transmitter is configured to transmit the plurality of CBGs to a destination, and a receiver is configured to receive hybrid automatic repeat and request acknowledgment (HARQ-ACK) information corresponding to the transmitted plurality of CBGs. The processor circuitry is further configured to determine a HARQ-ACK assessment for the TB based on the HARQ-ACK information corresponding to the transmitted plurality of CBGs, and adjust a contention window size based on the HARQ-ACK assessment for the TB.

There is provided an enablement entity for a virtual experience service, the enablement entity in a wireless communication network, the enablement entity comprising a receiver, a processor and a transmitter. The receiver is arranged to receive an application service requirement corresponding to a plurality of devices, the plurality of devices operating in physical space, or in a virtual space of the virtual experience service, or both. The processor is arranged to decompose the application service requirement to a plurality of session requirements, wherein the session requirements apply to a plurality of communication sessions, the communication sessions provided between devices in both physical space and virtual space, and to derive a set of joint quality of service parameters for the plurality of sessions based on the session requirements. The transmitter is arranged to send the set of joint quality of service parameters to one or more network entities in the wireless communication network.

The invention relates to a terminal transmitter state determination method and system, a base station and a terminal, and relates to the technical field of communication. The method of the present disclosure comprises: a base station sending transmitter state configuration information to a terminal, in which a frequency band for uplink transmission by a transmitter of the terminal is dynamically switched between frequency bands greater than two frequency bands, the transmitter state configuration information being used for: after the frequency band for uplink transmission by the transmitter of the terminal is switched, sending the transmitter state configuration information to the terminal; under the condition that the selectable state of the transmitter of the terminal is not unique, indicating the state of the transmitter of the terminal after switching; and the base station determines the transmitter state of the switched terminal according to the transmitter state configuration information.

Transport networks, network elements, and methods of use are described herein, including a transmitter comprising a client-side input, transmitter circuitry, and antennas. The client-side input is configured to receive baseband signals having client data encoded therein. The transmitter circuitry is configured to receive the baseband signals from the client-side input and generate antenna feed signals based on the baseband signals. The antennas are configured to receive the antenna feed signals from the transmitter circuitry, generate radiated signals based on the antenna feed signals, and couple the radiated signals into a hollow waveguide. Each of the radiated signals is a radiated electromagnetic wave configured for coherent detection and has a frequency in a range between 300 Gigahertz (GHz) and 10 Terahertz (THz).

Methods, systems, and devices for wireless communications are described. A transmitter may modulate a set of bits into an on-off keying (OOK) sample sequence for wireless transmission to a receiver in a set of frequency resources. The transmitter may apply a transform (e.g., a discrete Fourier transform (DFT)) to the OOK sample sequence to generate a frequency domain representation of the OOK sample sequence. In some cases. the transmitter may, using an orthogonal frequency division multiplexing (OFDM) waveform generator, generate an OFDM waveform based on mapping the frequency domain representation of the OOK sample sequence to a set of resource elements of the set of frequency resources. In some cases. the transmitter may transmit the OFDM waveform to the receiver via the set of frequency resources.

The present disclosure provides communication apparatus and communication method for enhanced direct link communication. A communication apparatus is configured to communicate wirelessly with an access point (AP) on a first channel, the communication apparatus comprising: circuitry, which, in operation, generates a channel use permission request frame, the channel use permission request frame comprising information indicating the communication apparatus, another communication apparatus and a second channel that is different from the first channel; a transmitter, which, in operation, transmits the generated channel use permission request frame to the AP to seek permission from the AP to use the second channel for direct link communication with the another communication apparatus; and a receiver, which, in operation, receives a channel use permission response frame from the AP permitting use of the second channel, wherein the communication apparatus is further configured to communicate with the another communication apparatus on a direct link in the second channel after receiving the channel use permission response frame.

The invention provides a full-parallel arbitrary multiplying power variable sampling system, and belongs to the technical field of signal processing. The system comprises an up-sampling system and a down-sampling system, the up-sampling system is used for a transmitter and comprises an up-sampling filter and an up-sampling interpolator, and the down-sampling system is used for a receiver and comprises a down-sampling filter, an extractor and a down-sampling interpolator; the up-sampling system can process four paths of input signals in parallel, and four paths of output signals are obtained after the four paths of input signals are processed in parallel; the down-sampling system is formed by cascading a plurality of down-sampling filters and an extractor, an extraction module is responsible for down-sampling of integer 2n times, and a decimal interpolator is connected behind the extractor to realize down-sampling processing of any decimal times. According to the invention, the limitation of traditional integer or simple fractional multiple sampling is broken through, arbitrary-multiplying-power precise resampling of the GHz-level signal is realized, the processing speed and the interpolation precision are obviously improved, the error is low, the anti-aliasing capability is strong, and the method is suitable for the high-requirement fields such as private network communication.

A radio communication technology with small delay is provided. A communication system includes a communication terminal and a base station. The base station includes a plurality of transmitter-receivers configured to perform radio communication with the communication terminal. The base station is configured to perform radio communication with the communication terminal by using a part or all of the plurality of transmitter-receivers. The communication terminal receives a downlink synchronization signal from at least one transmitter-receiver to be newly connected, and establishes downlink synchronization with the at least one transmitter-receiver by using the downlink synchronization signal. The communication terminal receives a random access start order from the base station, performs random access processing by using the random access start order, and establishes uplink synchronization with the at least one transmitter-receiver.

A terminal includes a reception unit configured to receive a signal related to positioning in device-to-device direct communication from another terminal; a transmitter configured to transmit a signal based on the signal related to positioning in the device-to-device direct communication to the other terminal; and a control unit configured to perform control to transmit the signal based on the signal related to positioning in the device-to-device direct communication to the other terminal by a certain time point.

Methods and apparatus for sharing digital-to-analog (DAC) converters in a reconfigurable DAC circuit to support two or more transmit chains of a wireless transmitter configured for different radio access technologies (RATs) and / or different transmitter architectures. One example DAC circuit generally includes at least four DACs and a plurality of switches coupled to outputs of the at least four DACs such that the DAC circuit is configured as a multi-channel DAC circuit with at least four channels for a first set of one or more frequency bands and as an interleaved DAC circuit with at least two channels for a second set of one or more frequency bands different from the first set of frequency bands.