945 results about "Transmitted power" patented technology

The present disclosure provides a wireless transmit / receive unit (WTRU) that maintains first and second transmit power control (TPC) accumulators. The WTRU receives, from a base station, a configuration including first and second sets of power control (PC) parameters associated with the first and second TPC accumulators, respectively. The WTRU receives a first TPC command, associated with the first TPC accumulator, from the base station. The WTRU updates the first TPC accumulator and the second TPC accumulator based on the first TPC command if the second TPC accumulator is dependent on the first TPC accumulator. The WTRU may maintain multiple TPC accumulators and may implement different TPC processes for different TPC accumulators. The different TPC accumulators may be associated with different symbol types. Hence, the WTRU may dynamically transmit one or more uplink channels and / or one or more uplink signals at different transmit power levels by utilizing corresponding TPC accumulators.

The invention relates to the technical field of communication, in particular to a satellite communication anti-interference transmission method based on a frequency hopping and spread spectrum fusion algorithm. According to the method, interference power is collected at multiple nodes, multiple sub-carrier frequencies and multiple moments to construct an interference observation tensor, interference features are extracted through low-rank tensor decomposition, and interference of each sub-carrier frequency in a future frequency hopping time slot is predicted; calculating a signal to interference plus noise ratio and capacity according to predicted interference in combination with transmitting power and noise, constructing a utility function containing a service weight and a balance coefficient, and distributing working sub-carrier frequency to each satellite communication node under concurrency constraint to generate a frequency hopping sequence; a transmitting end performs channel coding, modulation and spectrum spreading on service data and transmits the service data according to a frequency hopping sequence, and a receiving end completes synchronization, de-spreading and decoding and performs weighting processing by utilizing predicted interference. The method improves the spectrum utilization rate and the interference suppression capability, and enhances the satellite communication reliability.

The invention discloses a reconfigurable intelligent surface (RIS)-assisted multiple-input-multiple-output (MIMO) implicit channel estimation method based on a graph attention network, which is used for efficient downlink transmission in a multi-user scene. Firstly, a graph attention network is designed, user nodes and RIS nodes are modeled in a unified mode, received pilot signals serve as initial features, spatial feature expression is enhanced in combination with user three-dimensional position information, and therefore interference between users and a spatial correlation structure are accurately represented; secondly, end-to-end feature aggregation is achieved based on a message passing mechanism, a base station beam forming matrix and an RIS reflection coefficient are directly predicted under the condition that explicit channel estimation is not needed, and the total transmitting power constraint and the unit mode constraint are met through normalization processing so as to complete joint optimization; according to the method, the users and the speed of the system can be remarkably improved under limited pilot frequency overhead, and the method has excellent generalization performance and robustness in a multi-user complex propagation environment.

The invention belongs to the technical field of wireless optical communication, and particularly relates to a mobile edge computing task unloading and resource allocation method in wireless optical communication assisted by an unmanned aerial vehicle. According to the method, the data model, the queue model and the communication model are constructed, a task unloading strategy is optimized, and efficient and low-power-consumption edge computing resource allocation is achieved; an optimization technology is adopted to decompose a long-term optimization problem into sub-problems of each time slot, and the sub-problems are solved through a continuous convex approximation algorithm and a BFGS algorithm; finally, joint optimization of task unloading, computing resources, transmitting power, task return transmitting power, time slot scheduling and UAV trajectory is realized, and an optimization framework with more fine granularity in multi-dimensional allocation is formed. The characteristics of flexibility of the unmanned aerial vehicle and high bandwidth of wireless optical communication are utilized, the long-term throughput of the system is improved, the long-term power consumption of Internet of Things equipment is reduced, the high real-time performance of task processing is ensured, and the method is suitable for outdoor mobile Internet of Things application scenes with strict requirements for low power consumption and high real-time performance.

A communication method, apparatus, and system. First information is received, where the first information is usable to indicate a first open-loop power control parameter and a second open-loop power control parameter. A first power and a second power are determined based on the first information, where the first open-loop power control parameter usable for determining the first power is different from the second open-loop power control parameter usable for determining the second power. The first power is a transmit power of a first PUSCH, the second power is a transmit power of a second PUSCH, a symbol occupied by the first PUSCH is an SBFD symbol, and a symbol occupied by the second PUSCH is a non-SBFD symbol. The first PUSCH is sent on a first BWP by using the first power. The second PUSCH is sent on the first BWP by using the second power.

The present application relates to devices and components, including apparatus, systems, and methods for measuring serving cell configuration. The user equipment may detect a condition, and based on the condition, it may determine a configuration associated with a set of requirements. The requirements may be associated with determining a maximum transmit power or power back-offs. The UE may determine the maximum transmit power based on the configuration. Based on the maximum transmit power, UE may perform power control or other algorithms to determine the transmit power used to transmit a signal to the network.

Embodiments of the present application provide a communication method and a communication apparatus, which can send a first signal on the basis of first information. The method comprises: an AIoT device sends a first signal on the basis of first information, the first information comprising one or more of the following: a first sequence configuration corresponding to the first signal; a configuration used for estimation of a non-ideal factor; a guard band configuration of the first signal; a transmit power configuration of the first signal; or a configuration of a sub-channel of the first signal. The sub-channel is configured on the basis of a system bandwidth or a transmission bandwidth or an occupied bandwidth of an AIoT system, or the sub-channel can also be configured on the basis of a transmission bandwidth or an occupied bandwidth of the first signal, and the sub-channel is used by the AIoT device to send the first signal. The first signal is applied to the AIoT system.

A wireless power transfer and docking station and methods are provided for wirelessly charging or powering a portable device and automatically connecting to external peripheral devices. The station comprises at least one wireless-power transmitter for transmitting power and identification-related information, and at least one wireless-power receiver, connected to the portable device, for exchanging the power and the identification-related information to the portable device. The methods comprise pairing the at least one wireless-power transmitter with the at least one wireless-power receiver when the portable device is placed in a charging zone of the at least one wireless-power transmitter, exchanging the identification-related information for automatically and wirelessly connecting to the external peripheral devices, and attempting connecting to the external peripheral devices.

Systems and methods for enabling power control of multiple Transmission Reception Points (TRPs) are provided. In some embodiments, the wireless device performs at least one of: receiving in a Downlink Control Information (DCI) a first Transmit Power Control (TPC) command and a second TPC command and an indication of a first transmission of the physical channel to a first TRP associated with a first closed-loop and a second transmission of the physical channel to a second TRP associated with a second closed-loop; determining a first and a second transmit power based on the first and the second TPC commands, respectively; and applying the first and the second transmit power to the first UL transmission and the second UL transmission, respectively. In this way, some embodiments herein enable more accurate per TRP power control with a simple signaling for multiple UL transmissions towards different TRPs scheduled by a single DCI.

This disclosure provides methods, components, devices and systems for coordinated spatial reuse in Wi-Fi, such as a coordinated beamforming (COBF) transmission mode or a coordinated spatial reuse (C-SR) transmission mode. Some aspects more specifically relate to a sharing access point (AP) and shared AP exchanging communications that facilitate the utilization of a transmission mode. In some implementations, a first AP may transmit, to a second AP, a message that includes first information associated with coordinated transmissions in which the first AP and the second AP concurrently transmit to one or more associated stations (STAs). The first information may include one or more of transmit power information for the coordinated transmissions, alignment information for the coordinated transmissions, or a transmission mode. The first AP and the second AP may proceed with coordinated communications within a shared transmission opportunity using the COBF transmission mode or the C-SR transmission mode.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a reader may transmit a first wireless communication signal to a first group of ambient internet of things (IoT) devices. The first group of ambient IoT devices may transmit a response to the signal based at least in part on being located within a first range of distances from the reader and the first signal being transmitted at a first transmit power. The reader may transmit a second wireless communication signal to a second group of ambient IoT devices. The second group of ambient IoT devices may transmit a response to the signal based at least in part on being located within a second range of distances from the reader and the signal being transmitted at a second transmit power. Numerous other aspects are described.

Techniques and apparatus for radio frequency (RF) exposure compliance for multiple-input, multiple-output (MIMO) transmissions are described. An example method that may be performed by a wireless device includes determining a respective multiple-input, multiple-output (MIMO) transmit power limit for each of a plurality of antennas of the wireless device. A signal associated with a MIMO transmission is transmitted from each antenna at a respective first transmission power level based on the respective MIMO transmit power limit for the antenna in compliance with a radio frequency (RF) exposure limit. The first transmission power level used for a first antenna of the plurality of antennas is different from the first transmission power level used for a second antenna of the plurality of antennas.

This application describes mechanisms to manage closed-loop antenna selection for a wireless device. The wireless device transmits sounding reference signal (SRS) resources configured by a cellular wireless network in an SRS resource set and receive SRS indicator (SRI) values to indicate antennas for subsequent uplink transmission of one or more physical layer channels by the wireless device, including a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), and a physical random access channel (PRACH). The wireless device supplements the closed-loop antenna selection with an open-loop antenna selection and uses the open-loop antenna selection for non-PUSCH channels when a most recently SRI value can be considered stale. SRI-based closed-loop antenna selection is extended to frequency division duplexing (FDD) bands. Transmit precoding matrix indicator (TPMI) group values are also used to indicate differential transmit power capabilities of various antennas of the wireless device to the cellular wireless network.

Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) may obtain information indicating one of a plurality of network energy modes for communication between a transmission-reception point (TRP) and the UE. The UE may engage in a sidelink positioning session with at least one other UE, comprising the UE transmitting at least one sidelink positioning reference signal (SL-PRS) symbol for the sidelink positioning session based on a SL-PRS transmit power associated with the one of the plurality of network energy modes.

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.

Systems and techniques for performing transmit power control for facilitating multi-band make-before-break (MBB) roaming are described. An example technique includes identifying a first access point communicating on a first band within a first cell. A second access point communicating on a second band within a second cell neighboring the first cell is identified. A target overlap between the first band and the second band is created.

A wireless device may communicate with a base station in a terrestrial or non-terrestrial network. One or more system information block messages may indicate multiple random access resource sets of a synchronization signal block. Each resource may correspond to a different type of random access procedure, such as a 2-step or 4-step procedure. A transmit power pattern of the synchronization signal block may indicate a random access resource set to be used.

Certain aspects of the present disclosure provide techniques for determining coefficients for a codebook to use for coherent joint transmission (CJT) by multiple transmission and reception points (TRPs) transmitting with a same transmit power per TRP. A method that may be performed by a user equipment (UE) includes receiving configuration information indicating resources associated with at least two transmission reception points (TRPs) with which the UE is configured to communicate using a codebook structure with a matrix of coefficients shared between the at least two TRPs; measuring channel state information (CSI) reference signals (CSI-RSs) from the at least two TRPs according to the configuration information; and transmitting a report with coefficients for the matrix of coefficients shared between the at least two TRPs.

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 discloses a D2D user resource allocation method and storage medium based on a deep reinforcement learning algorithm, relating to the field of wireless communication technology. The method includes: constructing a wireless network model and discretizing the D2D transmit power; constructing a user signal-to-noise ratio calculation model with maximizing the communication system throughput as the optimization objective; setting a prediction policy network π, a prediction value network Q, a target policy network π′, and a target value network Q'; modeling the D2D communication environment as a Markov decision process, treating the D2D transmitter as an agent, iteratively loading the parameters of the target policy network to generate a policy that interacts with the environment, determining the state space, action space, and reward function; using the MAAC algorithm to optimize the policy for each D2D user; using a soft update method to iteratively update the parameters of the target policy network and the target value network until training is complete; and having the D2D user download the trained parameters of the target policy network and improve their policy.

Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) may obtain information indicating one of a plurality of network energy modes for communication between a transmission-reception point (TRP) and the UE. The UE may engage in a sidelink positioning session with at least one other UE, comprising the UE transmitting at least one sidelink positioning reference signal (SL-PRS) symbol for the sidelink positioning session based on a SL-PRS transmit power associated with the one of the plurality of network energy modes.

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.

A receiver for wirelessly receiving transmitting power includes a control unit, a charging unit charged by the transmitting power, a sensor configured to measure a physical quantity, and a transmitter configured to transmit the physical quantity. The control unit includes a voltage acquisition module to detect a charging voltage of the charging unit, a threshold comparison module to compare the voltage with a threshold, and a power receiving state determination module to determine a power receiving state based on the comparison. The control unit includes a transmission control module to determine whether transmission is permitted based on the state. A transmission timing control module causes the transmitter to transmit at a predetermined interval. If transmission is not permitted, the timing is delayed by a predetermined time. If the timing is consecutively delayed a predetermined number of times, the transmission is performed after a next predetermined transmission interval.

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.

A communication method and apparatus include: determining a first message frame, where the first message frame includes a transmit power envelope element, and the transmit power envelope element includes information indicative of maximum transmit power for a 320 MHz / 160+160 MHz bandwidth; and transmitting the first message frame.

The utility model discloses a track event starting timing training device which comprises a remote control starting device, a loudspeaker and a control module. The remote control starting device emits different signals through the wireless emission module, and the loudspeaker receives the signals of the remote control starting device through the wireless receiving module so as to play corresponding sounds; the wireless transmitting module comprises a transmitting external antenna end, a data input end, a transmitting power supply end and a transmitting grounding end; the wireless receiving module comprises a receiving external antenna end, a data output end, a receiving power supply end and a receiving grounding end; the stopwatch display is used for receiving a signal of the loudspeaker so as to realize timing and watch returning; the photoelectric detection module comprises a light emitting pulse sensor and a light receiving pulse sensor, and the photoelectric detection module controls the stopwatch display to stop timing through the control module when the athlete passes through the terminal point.