271 results about "Transmitted power" patented technology

This disclosure provides methods, components, apparatus, and systems for dynamic transmit power control. Some aspects more specifically relate to dynamically enabling transmit power during a transmit opportunity (TxOP) to minimize the transmit power used for message transmission. In some specific embodiments, a wireless device can transmit a first message at a first transmit power, the first message indicating that the wireless device will transmit one or more second messages during the TxOP. The wireless device can select a second transmit power and a plurality of transmit parameters for the second messages, wherein the second transmit power satisfies a metric for the one or more second messages. The wireless device can transmit the second message at the second transmit power during the TxOP based on the corresponding values ​​of the plurality of transmit parameters.

This invention discloses a distributed MIMO radar resource allocation method for integrated reconnaissance, interception, and communication, belonging to the technical field of radar resource allocation. It aims to solve the performance balance problem under multi-task coordination in distributed MIMO radar air combat scenarios. An integrated reconnaissance, interception, and communication adversarial scenario is constructed, using the lower bound of position estimation error (SPEB), missile detection probability, and inter-node communication capacity as performance evaluation indicators for reconnaissance, interception, and communication, respectively. Then, with the goal of minimizing the total system transmit power, a model is constructed by combining relevant performance constraints and node task rules. Finally, the model is transformed into a mixed-integer second-order cone programming problem, and the non-convex terms are convexified using the McCormick envelope method. A numerical solution is obtained based on the CVX solver in MATLAB, achieving joint optimization of node task allocation and power allocation. This invention reduces the total transmit power while satisfying three types of performance requirements, achieving efficient waveform resource scheduling and improving the practicality and robustness of radar countermeasures.

This invention provides an unmanned aerial vehicle (UAV) image transmission system and image transmission method. The system includes: a radio frequency (RF) transceiver, a balanced amplifier circuit, a low-noise amplifier, and an RF switch. The balanced amplifier circuit includes at least two parallel power amplifiers configured to superimpose the amplified signals from each power amplifier in phase to synthesize the output power. The RF transceiver generates a time-division duplex control signal to synchronously control the switching of each component between transmit and receive modes. By employing a balanced amplifier circuit, this invention enables each power amplifier to operate in a region with better linearity, thereby improving transmit power while ensuring the signal quality required for high-order modulation, thus balancing long-distance transmission and high-definition image quality.

The present application relates to a communication method and apparatus. A first apparatus generates a first PPDU. The first apparatus sends the first PPDU. A frequency domain resource corresponding to a first PPDU bandwidth comprises a frequency domain resource corresponding to a reference bandwidth, the frequency domain resource corresponding to the reference bandwidth is located at an edge of the frequency domain resource corresponding to the first PPDU bandwidth, and the reference bandwidth is less than the first PPDU bandwidth. The transmit power of the first PPDU on each tone among M tones is less than or equal to a first threshold, and the M tones belong to guard tones corresponding to the first PPDU bandwidth and do not belong to guard tones corresponding to the reference bandwidth. The M tones implement a function similar to that of guard tones, so that the guard tones corresponding to the reference bandwidth can meet the requirements of a tone plan corresponding to the first PPDU bandwidth.

This invention discloses a high-performance communication transmission method based on 5G distributed antenna cooperative networking, specifically relating to the field of distributed antenna communication technology. It addresses the problems of existing distributed antenna systems relying on explicit control signaling for node scheduling, power allocation, and beam control, resulting in high signaling overhead, high scheduling delay, and low cooperative efficiency in high-speed mobile and complex channel environments. By mapping transmit power levels, energy storage unit voltage states, and beam pointing information to the amplitude, phase, and subcarrier distribution characteristics of the pilot sequence, multi-dimensional control information is implicitly carried at the physical layer. User equipment then analyzes the superimposed pilots to complete the selection of the dominant antenna node and beam pointing correction feedback. This allows each antenna node to perform cooperative transmission and adaptive adjustment based on the feedback results, thereby achieving efficient and stable distributed cooperative communication without the need for additional control signaling.

This invention proposes an integrated beamforming method and system for communication and sensing based on reconfigurable smart surfaces, belonging to the field of wireless communication technology. The aim is to design suitable beamforming to maximize communication and data rate while ensuring adequate radar sensing performance. The method includes: first, constructing an ISAC system containing J RIS elements, a base station (BS), and M single-antenna mobile users (MUs), and completing the modeling of baseband signals and user received signals; second, constructing user communication and data rate models and radar target detection signal-to-noise ratio models, establishing unit mode constraints on RIS reflection coefficients and transmit power constraints; third, employing an improved algorithm combining alternating optimization and fractional programming to decompose the non-convex optimization problem into sub-problems for iterative solution, ultimately maximizing communication and data rate and radar sensing performance, while also meeting the dual functional requirements of communication and sensing. This invention is applicable to providing target detection and communication functions for vehicles.

Apparatuses and methods for power reduction in wireless communication systems. A method for operating a user equipment (UE) includes receiving first information related to a first uplink (UL) carrier and a second UL carrier, receiving second information associated with a maximum power reduction (MPR) mitigation mode, and determining, based on the first and second information, first and second UE maximum output powers for an UL transmission bandwidth according to first and second MPR values. The first and second MPR values are associated with first and second transmissions on the first and second UL carriers. The method further includes determining first and second UL transmit powers based on the first and second UE maximum output powers, respectively, and transmitting an UL signal or channel on the first UL carrier based on the first UL transmit power on the second UL carrier based on the second UL transmit power.

This application discloses a method, device, and medium for dynamic control of uplink power in a repeater, belonging to the field of communications. The method includes: determining the upper limit of the uplink transmit power of the repeater based on the downlink path loss between the repeater and the host base station, the uplink path loss, and the uplink reference sensitivity of the host base station; if the current uplink transmit power is greater than or equal to the upper limit, the current uplink transmit power is reduced by a first preset step size; if the current uplink transmit power is less than the upper limit, the current uplink transmit power is increased by a second preset step size; determining whether this power adjustment triggers a power increase in the user equipment; if so, the current uplink transmit power is increased by the second preset step size; if the current uplink transmit power meets a preset stability condition, the loop process is temporarily exited; otherwise, the main loop is returned to execution until the current uplink transmit power stabilizes. This method can achieve a balance between network-side interference suppression and user-side experience assurance.

Provided in the present disclosure are a TPC command processing method, and a device, a system, a storage medium and a program product. The method comprises: receiving a TPC command, wherein the TPC command is used for adjusting transmit power at which a terminal sends a sensing signal; and on the basis of a Doppler shift measurement window (DSMW), determining an effective moment of the TPC command. After receiving a TPC command for adjusting transmit power at which a terminal sends a sensing signal, the terminal can determine an effective moment of the TPC command on the basis of a DMSW, so as to adjust, after the TPC command takes effect, the transmit power at which the sensing signal is sent, thereby improving the accuracy of the terminal in determining the effective moment of the TPC command, and further ensuring the accuracy of subsequent sensing of an object to be sensed based on the sensing signal.

This invention discloses a latency optimization method for end-edge collaborative inference systems based on fluid antenna assistance (FA). The method first establishes an FA-assisted system model and constructs DNN partitioning collaboration, IFD transmission, and inference accuracy models based on the system model to determine the total inference latency, including local inference, IFD wireless transmission, and edge inference delays. Then, a joint optimization problem is constructed with the objective of minimizing the total inference latency, jointly optimizing parameters such as DNN partitioning points, transmit power of each device, and computational resource allocation. The joint optimization problem must satisfy inference accuracy and energy consumption constraints. Finally, the problem is decomposed into four sub-problems, and the block coordinate descent method is used to alternately optimize until convergence, completing the latency optimization of the end-edge collaborative inference system. This invention is the first to integrate FA and collaborative inference frameworks, achieving multi-dimensional parameter joint optimization, effectively reducing the total inference latency, and demonstrating significant performance advantages in scenarios with high accuracy thresholds and adverse channel conditions.

This invention provides an information determination method and apparatus, a storage medium, and an electronic device. The information determination method includes: determining the number N2 of Physical Sidelink Feedback Channels (PSFCHs) simultaneously transmitted by a terminal device (UE) in a PSFCH occasion and the transmit power of the PSFCHs, and determining the common resource blocks and transmit power of the common resource blocks corresponding to the N2 PSFCHs by: determining that N2 equals N1, or determining that N2 equals Nmax, or determining N2 PSFCHs from the N1 PSFCHs according to the priority order of the PSFCHs; determining that the transmit power of the PSFCH is the required power of the PSFCH, or determining that the transmit power of the PSFCH is X times the maximum power of the UE, or determining that the transmit power of the PSFCH is the maximum or minimum value among the required power and X times the maximum power of the UE; transmitting the determined N2 PSFCHs and the common resource blocks corresponding to the N2 PSFCHs; and determining that the transmit power of the common resource blocks is the transmit power offset Y of the PSFCHs, where Y is a network configuration or pre-configured value.

The application discloses a shift register unit, a driving method thereof, a display driving circuit and a display device, and belongs to the technical field of display. In the shift register unit, an input circuit (01) can transmit power signals with different potentials to a control node (PD) in different time periods in response to an input signal (In / ESTV) and a clock signal (CKN, CK), and two output circuits (02, 03) can transmit power signals with different potentials to connected output ends (Nout, Next) in different time periods in response to the potential of the control node (PD). Therefore, it can be determined that the shift register unit comprises P-type transistors and N-type transistors. Furthermore, the two output circuits (02, 03) can independently output signals to the connected output end (Nout). On this basis, the potential of the power signal can be flexibly adjusted, so that the driving output end (Nout, Next) of the connected pixel can reliably transmit the required driving signal with the potential to the pixel in different refresh frequency regions, to support the local refresh function. The shift register unit has simple structure and rich functions.

The invention relates to a method for transmitting data via a wireless interface between a field device (1) and a mobile device (2), comprising the following steps: - Providing a field device (1) with a computing unit (10) and a first wireless interface (30), and a mobile device (2) with a second wireless interface (40), wherein an internal power limit and a minimum connection robustness are stored in the field device (1), - Configuring first connection parameters with a first transmit power, a first redundancy and a first packet length, wherein the first transmit power corresponds to a maximum transmit power, the first redundancy to a minimum redundancy and the first packet length to a minimum packet length, so that the internal power limit is not exceeded by the field device (1),- Sending an initial advertising message (WN1) from the field device (1) via the first wireless interface (30) with the initial connection parameters, - Receiving the initial advertising message (WN1) from the mobile device (2) via the second wireless interface (40), - Sending an initial reply message (AN1) from the mobile device (2) to the field device (1).

This application discloses a method, apparatus, and storage medium for optimizing direct communication between a mobile phone and a satellite, relating to the field of satellite communication technology. The method includes: defining a particle vector related to direct communication between the mobile phone and the satellite, where the elements of the particle vector correspond to the uplink transmit power and uplink carrier frequency of the mobile phone, respectively; initializing a particle swarm based on the particle vector; constructing a fitness function, where the fitness value is related to transmission efficiency cost and energy consumption cost, wherein the transmission efficiency cost is used to evaluate the loss of data transmission efficiency, and the energy consumption cost is used to reflect the energy consumption cost of the mobile phone; iteratively optimizing the particle swarm using a particle swarm optimization algorithm to determine the optimal particle vector; and establishing a direct communication connection between the mobile phone and the satellite based on the optimal particle vector. Thus, this application achieves joint dynamic optimization of the mobile phone's uplink transmit power and uplink carrier frequency, reducing terminal energy consumption while ensuring the transmission efficiency of the satellite-to-ground link.

This invention relates to the field of wireless communication network optimization technology, specifically to an antenna layout and relay configuration optimization method based on a channel prediction surrogate model. The method includes: acquiring a digital twin environment model of the area to be optimized; constructing an original sample set by calculating channel parameters between candidate antennas and relay nodes through ray tracing; training and constructing a channel prediction surrogate model using improved sparse Gaussian process regression; and using location parameters as input and output channel quality indicators. A joint decision vector for antenna, relay location, and transmit power is defined, and an optimization objective function for total system capacity and deployment cost is defined. The surrogate model is embedded in Bayesian optimization as a fast evaluator, and the joint decision vector is iteratively sampled and evaluated. After convergence, the optimal layout configuration scheme is output. This method replaces real-time simulation with a dedicated surrogate model, achieving multi-parameter joint optimization and improving the efficiency of channel evaluation and optimization iteration.

This application provides a method and apparatus for controlling reactive power; the method includes: determining the basic reactive power based on the line parameters of the transmission line; the basic reactive power characterizes the reactive power currently available on the transmission line; the transmission line is a doubly-fed generator line transmitting power to the grid; determining the input active power and input reactive power of the grid-side converter based on the operating parameters of the doubly-fed generator; determining a compensation value for the basic reactive power based on the input reactive power and input active power; compensating the basic reactive power based on the compensation value to obtain the compensated reactive power; and controlling the reactive power output of the transmission line based on the compensated reactive power.

This invention discloses a dynamic radio frequency allocation method for ultra-large-scale MIMO (UML), relating to the field of wireless communication physical layer technology. First, the method proposes a novel concept of "water-filled driven effective degrees of freedom," which incorporates system transmit power and accurately characterizes the maximum number of sub-channels that can be effectively activated under a given power constraint. Second, a hybrid precoding optimization algorithm is designed to solve for the optimal precoding matrix under a given number of radio frequency links. Finally, based on the water-filled driven effective degrees of freedom evaluation and the hybrid precoding optimization algorithm, a dynamic radio frequency allocation scheme is constructed, dynamically activating and deactivating radio frequency links according to real-time channel conditions to adapt to channel changes. By introducing water-filled driven effective degrees of freedom and proposing a complete dynamic radio frequency allocation and precoding optimization process, this invention effectively improves the energy efficiency of UML systems, providing an innovative solution for promoting the development of green communication in UML.

This invention belongs to the field of 6G communication technology, specifically relating to a method for optimizing the security resource allocation of a dual-RIS-assisted sensing integrated system. The method includes constructing a dual-RIS-assisted sensing integrated system; under constraints such as sensing beam pattern gain, user service quality, dual-RIS phase shift, and base station maximum transmit power, constructing a resource allocation optimization problem with the goal of maximizing system security energy efficiency; using the Tinkerbach method combined with variable substitution techniques to transform the coupled and non-convex resource allocation optimization problem into a tractable uncoupled problem; and employing alternating optimization, continuous convex approximation, and semi-definite relaxation methods to efficiently solve the tractable uncoupled problem, obtaining the optimal security resource allocation scheme. This invention can effectively improve the overall security energy efficiency of the sensing integrated system, achieving an effective balance between security energy efficiency and sensing performance.

Methods and apparatuses for voice over long-term evolution / voice over new radio (VoLTE / VoNR) performance for a cellular communication system. A method of operating a base station includes receiving, from a user equipment (UE), uplink (UL) signals; identifying, based on the UL signals, a first and second parameters; determining first and second UL power control parameters based on the first and second parameters, respectively; determining a first time period for the first UL power control parameter and a second time period for the second UL power control parameter, wherein the first time period is longer than the second time period; updating the first UL power control parameter based on the first time period and the second UL power control parameter based on the second time period; and transmitting, to the UE, the updated first and second UL power control parameters for an UL transmit power of the UE.

This application relates to the field of communication technology and discloses a method and apparatus for detecting anomalies in an optical link. The method includes: when anomaly detection of the optical link is triggered, acquiring a first bit error rate (BER) of a first test message sent by a first optical module to a second optical module at a first transmit power; when the first BER is less than a BER threshold corresponding to the first transmit power, acquiring a second BER of a second test message sent by the first optical module to the second optical module at a second transmit power, where the first transmit power is less than the second transmit power; when the second BER is greater than or equal to the BER threshold corresponding to the second transmit power, determining that an anomaly exists in the optical link. Using the above method can improve the accuracy of optical link anomaly detection.

A communication method and device are disclosed, and relate to the technical field of communication. In the method, a terminal is configured with a first maximum transmit power and a second maximum transmit power. The second maximum transmit power is greater than the first maximum transmit power. The method comprises: the terminal determining a first power headroom according to the first maximum transmit power, transmitting the first power headroom, thereby enabling the terminal to perform uplink transmission at a lower transmit power, reducing the average transmit power of the terminal, and enabling the terminal to meet electromagnetic radiation regulations. Then, the terminal receives first indication information, and on the condition that the first indication information is received, determines a second power headroom according to the second maximum transmit power, and transmits the second power headroom, thereby enabling the terminal to perform uplink transmission at a higher transmit power, and achieving better uplink coverage performance.

The application provides a matching warehouse material channel with a avoiding structure and a matching warehouse, and relates to the technical field of door and window profile production. The technical scheme points are as follows: a mounting frame, a plurality of roller cylinders arranged at intervals on the mounting frame, transmission structures arranged between the plurality of roller cylinders for transmitting power between each other, a feeding station arranged in the area of the plurality of roller cylinders for accommodating a feeding fork arm of the matching warehouse, the feeding station crossing the mounting frame, and the transmission structures in at least the feeding station being concave downward, so that the height position of the transmission structures is lower than the distance between the upper surfaces of two adjacent roller cylinders, and the distance is not less than the thickness of the feeding fork arm. The matching warehouse material channel with the avoiding structure and the matching warehouse have the advantage of improving the stability of door and window profile conveying.

This application discloses a method for dedicated data transmission and synchronization signal sharing in intelligent power cabinets, belonging to the fields of high-power power electronics technology and industrial communication. This method modifies the UART protocol frame structure, expanding the start bit from 1 bit to 3 bits to distinguish between A, B, and C phase synchronization signals or no synchronization trigger, allowing the phase information of the synchronization signal to be directly embedded in the data communication frame. The transmitting FPGA is configured with a dedicated communication status address and data length write address for the MCU to monitor and trigger data transmission, and transmission is initiated on the rising edge of the synchronization signal or by an internal periodic task. After parsing the valid synchronization bit information, the receiving FPGA immediately outputs an interrupt pulse to the MCU of its own cabinet through hardware circuitry, and employs a precise delay forwarding mechanism for the transmitting power cabinet, ensuring that the synchronization interrupt trigger times of the MCUs in each cabinet are aligned at the microsecond level. This method improves the synchronization accuracy, current sharing performance, and system reliability of multi-cabinet parallel systems, and supports dynamic redundancy switching in case of synchronization source failure.

Systems and method provide for uplink carrier aggregation (UL CA) that is configured for a User Equipment (UE), and transmissions on multiple UL carriers by one power amplifier (PA). When a base station (e.g., a gNB) indicates the UE should switch its UL waveform from Cyclic-Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) to Discrete Fourier Transform Spread OFDM (DFT-S-OFDM) for Physical Uplink Shared Channel (PUSCH) transmission in one or more UL carriers, the base station expects that the UE transmit power on a particular carrier can be increased, the carrier for which a UL coverage issue (e.g., low signal strength, signal to noise ratio, interference, etc.) is found. UL waveform switching from CP-OFDM to DFT-S-OFDM can improve the lower bound of PCMAX, namely the total UE transmit power on UL carriers of intra-band CA.

Provided is a power transmission device including: a plurality of power transmission coils; a power transmission unit configured to wirelessly transmit power to a power receiving device using at least one of the plurality of power transmission coils; a detection unit configured to perform a process of detecting an object using at least one of the plurality of power transmission coils; and a reception unit configured to receive a signal from the power receiving device, wherein, in a case where the reception unit receives a request to stop power transmission from the power receiving device, the detection unit performs, in a period of stop of a power transmission, a process of detecting an object using a power transmission coil which was used for the power transmission.

The present application relates to the technical field of radios, and in particular to a communication method and apparatus. The present application can be applied to the IEEE802.11ax standard, the 802.11be standard, the 802.11bn standard, etc., and other standards of the IEEE 802.11 series, such as the 802.15 standard, the 802.11bf standard, the IMMW standard, or the NearLink standard. The solution provided in embodiments of the present application designs a tone plan under a discrete bandwidth of 60 MHz, and provides subcarriers comprising 12 52-tone DRUs, subcarriers comprising six 106-tone DRUs, and subcarriers comprising three 242-tone DRUs. When a DRU is used to transmit some or all fields of a PPDU, transmit power of each subcarrier can be effectively increased.

Techniques and apparatus for providing information to an AP within a wireless network are described. An example technique includes sending a first frame to a first wireless device, the first frame comprising a first control field indicating a first one or more parameters of the first frame, at least one parameter of the first one or more parameters is associated with a transmit power of the AP. Receiving a second frame from the first wireless device, the second frame is carried in a physical layer PPDU and comprises a second control field indicating a second one or more parameters of the first frame, at least one parameter of the second one or more parameters is associated with a pathloss determined based on the at least one parameter and a RSSI measured by the first wireless device. Extracting the pathloss reported in the second frame.

This invention discloses a radio frequency (RF) activation method, apparatus, electronic device, and medium for an indoor distributed antenna. The method includes: performing three-dimensional local peak detection on target wall nodes of a target building to obtain target anchor points; projecting a two-dimensional continuous probability map, determined by superimposing parameter information of the target cores of all target anchor points, onto the target beam angular domain of each distributed antenna element to determine the coverage occupancy rate of each beam element in the target beam angular domain; allocating transmit power vectors to the target beam angular domain based on the coverage occupancy rate; determining the target RF chain for each beam element in the target beam angular domain based on the angular difference between two adjacent beam elements in the target beam angular domain; and transmitting the transmit power vector of the target beam angular domain and at least one target RF chain to the corresponding distributed antenna element in the target beam angular domain. This invention enables an indoor distributed antenna system to significantly reduce RF link power consumption while ensuring RF link quality.

An electronic device includes an antenna, a radio frequency transmission module, a camera, one or more memories, and one or more processing circuits. The radio frequency transmission module transmits radio frequency signals at a transmit power level through the antenna. The processing circuits access data and at least one instruction stored in the memories to perform the following steps. Scene detection is performed on at least one image to obtain scene information. It is determined whether to switch a mode of operation to a handheld mode based on the scene information, and the following steps are performed in the handheld mode. Human body detection is performed on the at least one image to obtain human body detection information. At least one handheld position is estimated based on the human body detection information. It is determined whether the at least one handheld position is adjacent to the antenna. If the handheld position is adjacent to the antenna, the transmit power level is reduced to a second level that is lower than a first level. The electronic device estimates a proximity between a user and the electronic device through image recognition to provide a function of dynamic specific absorption rate. The present disclosure also relates to a non-transitory computer readable recording medium.