99 results about "Beam tracking" patented technology

The invention provides a special high-throughput satellite communication terminal for electric power, and relates to the technical field of electric power communication, and the special high-throughput satellite communication terminal comprises a baseband processing module which is used for carrying out differential encryption processing on different types of electric power data; the high-throughput satellite radio frequency module is used for suppressing sidelobe interference while realizing automatic satellite beam tracking through a beam forming algorithm during satellite communication, and calculating the optimal transmitting power through a self-adaptive power regulation algorithm; the communication transmission module is used for presetting a data priority based on a priority mapping table during data transmission and preempting satellite beam resources according to the data priority; the electric power Internet of Things protocol adaptation layer is used for realizing conversion between an electric power dedicated protocol and a satellite IP protocol, differential coding compression of electric power data and interrupted transmission in a link; and the beam optimization module is used for dynamically optimizing the beam pointing angle based on the satellite orbit parameters and the terminal geographic position. According to the scheme, the coverage degree of electric power communication in remote areas can be improved, and the safety and reliability of data transmission are improved.

Provided are a communication method and a communication apparatus. The communication method is applied to the field of beam management. Embodiments of the present application provide using a system sensing capability to implement beam prediction, that is, assisting beam measurement by using a sensing beam, or it may be understood that a newly added sensing beam may be used during beam measurement, thereby facilitating reducing beam tracking overhead of a communication system in mobility of a user equipment, and guaranteeing quality of service of a high-mobility user equipment.

The invention discloses a fast beam tracking method and system for a high-dynamic group, and belongs to the technical field of wireless communication. The method comprises the steps that a base station obtains initial angle information of a terminal through a spectrum estimation method; the two auxiliary wave beam pairs are used for sending signals, the terminal measures the receiving power and calculates the power ratio, and an actual physical angle is obtained through inverse solution; taking the angle as an observed quantity of an extended Kalman filter, and realizing dynamic beam direction estimation through state prediction and correction; monitoring the received power in real time to perform beam misalignment judgment, and triggering reinitialization if the received power is misaligned; and inputting an angle estimation residual error output by the extended Kalman filter into the long short-term memory network, and performing residual error modeling and prediction compensation on an estimation result. The system comprises corresponding modules for implementing the steps. The method combines the auxiliary beam pair, the extended Kalman filter and the long short-term memory network, improves the beam tracking precision and robustness, and is suitable for high-speed moving scenes such as an unmanned aerial vehicle group.

The application is suitable for the field of wireless communication technology, and provides a cross-band tomographic model guided environment knowledge base construction and utilization method and device, a wireless communication system and a storage medium, which comprises the following steps: a wireless distributed node performs periodic beam scanning, and records wireless measurement data of multiple frequency bands to the local based on data acquisition signals of a wireless base station; the wireless distributed node generates wireless propagation channel multipath parameters based on the wireless measurement data, combines position and attitude to acquire local environment knowledge data and feeds back to the wireless base station; the wireless base station receives and stores the local environment knowledge data, combines multi-sensor data to construct a cross-band tomographic model guided environment knowledge base; and the wireless base station assists the wireless communication process between the wireless base station and the wireless distributed node based on the environment knowledge base. According to the application, the cross-band tomographic model guided environment knowledge base is used by the wireless distributed node to realize multi-node beam tracking, which can reduce beam overhead and improve communication spectrum efficiency.

This invention relates to the field of lighting technology, specifically to a smart floor lamp for smart homes. It includes a floor socket assembly for embedding in the ground, a lamp body assembly mounted on top of the floor socket assembly, housing a light source module and a main control module, a transmission structure including a hinge base and a rotating shaft, with the lamp body assembly hinged to the hinge base and one end of the rotating shaft fixedly connected to the hinge base and the other end movably connected to the floor socket assembly, an environmental sensing unit including a tracking sensor, an ambient light sensor, and a humidity sensor, and an optical self-maintenance unit including a transparent protective cover and a cleaning structure. This invention achieves dynamic beam tracking through dual-degree-of-freedom intelligent adjustment. Combined with the transparent protective cover and cleaning structure, it ensures clear visibility of the sensors in the environmental sensing unit under rainy and humid conditions, achieving stable and accurate smart outdoor dynamic lighting.

A beam tracking method and apparatus, and a storage medium and a program product. The method comprises: acquiring signal measurement information, wherein the signal measurement information comprises communication signal measurement information and sensing signal measurement information between a first node and a second node; and on the basis of the signal measurement information, determining a beam tracking usage policy of the first node for the second node, wherein the beam tracking usage policy is used for indicating the enabling or disabling of beam tracking.

The invention discloses a millimeter wave beam tracking method, a computer readable storage medium and node equipment, and belongs to the technical field of wireless communication, and the method comprises the steps: constructing a beam pointing error interval at an initial moment; at the next moment, predicting the interval through a state transition equation; acquiring a channel observation value under the current beam pointing based on a channel model; carrying out shrinkage processing on the predicted error interval; and estimating a beam pointing angle according to the contracted interval, and transmitting the interval as priori information to the next moment so as to repeat the steps. A computer program for executing the method is stored in the computer readable storage medium. The node equipment comprises at least one processor, a memory and a bus, wherein the memory stores a program for executing the method. According to the method, the tracking performance in a nonlinear and non-Gaussian scene can be kept under the condition that the calculation load is not increased, and the method is suitable for the conditions of uncertain and incomplete channel state information introduced by multipath, analog-to-digital conversion quantization, hardware nonlinear errors and the like.

The invention discloses a beam tracking method, electronic equipment, a storage medium and a program product, belongs to the technical field of wireless, and is used for reducing overhead and time delay of beam alignment. The method comprises the following steps: constructing a motion model of an angle, a distance and a speed according to the angle, the distance and the speed of terminal equipment relative to a base station; constructing an angle, distance and speed observation model according to reflection echoes received by the base station; and tracking a target beam according to the motion model, the observation model and the motion parameters of the beam transmitted by the base station.

This application relates to the field of communication technology, and in particular to a beam tracking method and apparatus, aiming to achieve beam tracking without beam training by having a terminal report attitude information and an access network device provide feedback on the beam information used by the terminal, thereby reducing signaling overhead and latency overhead and improving user experience. The method can be executed by the access network device, and includes: receiving attitude information from a terminal; and sending first information to the terminal based on the terminal's location information and attitude information, wherein the first information is used to determine a first beam, and the first beam is used for communication between the terminal and the access network device.

The embodiment of the invention provides a beam tracking method and device, equipment, a medium and a program product. The invention belongs to the technical field of computers. The method comprises the following steps: detecting equipment type information of a tracking object, obtaining motion characteristic parameters, and matching a target model set comprising at least two motion models based on an equipment type; obtaining a model weight and a migration probability at a previous moment, determining a corresponding parameter at a current moment, and adaptively updating the migration probability; when a weight dynamic updating condition is met, the model weight is updated, and computing resources are distributed according to a preset layering strategy; and calculating and predicting the three-dimensional position of the tracked object through multi-model fusion so as to adjust beam parameters for tracking. According to the technical scheme, the method can be adapted to complex motion states of multiple types of targets, the resource utilization rate is optimized and calculated while the beam tracking precision and the real-time performance are guaranteed, and the beam tracking accuracy of a communication and sensing integrated system is effectively improved.

The invention discloses a predictive cooperative beam forming and resource allocation method based on multi-station information fusion, which is suitable for a cellular-free large-scale MIMO unmanned aerial vehicle communication system. According to the method, a low-overhead beam tracking frame structure is designed on a ground base station side, and position tracking of a mobile unmanned aerial vehicle user is realized by using an uplink pilot signal and based on an extended Kalman filtering distribution mode; and then, designing beam forming based on position prediction to realize downlink data transmission. Each base station returns user state estimation and covariance information in a low-overhead mode through a forward link, and the central processing unit fuses information of multiple base stations to improve position tracking precision. Furthermore, according to the method, the system effectiveness and the spectrum efficiency are taken as optimization targets, the uplink pilot frequency length, the downlink base station user association and the power distribution are jointly optimized, and a low-complexity iterative algorithm based on compressed sensing and fractional programming is used for solving. According to the invention, the pilot frequency training and backhaul overhead can be obviously reduced.

Methods and apparatuses for beam tracking. A method of operating a user equipment (UE) includes receiving a physical downlink shared channel (PDSCH). The PDSCH includes first resource elements (REs) associated with downlink shared channel (DL-SCH), second REs associated with demodulation reference signals (DMRS), and third REs associated with N reference signals (RSs), where N is larger than or equal to 1. Each of the N RSs is associated with a corresponding spatial domain filter. The method further includes measuring the N RSs, determining information based on the measurement of the N RSs, and transmitting a first channel that includes the information.

New systems for the wireless recharging of the batteries of game controllers, without the need for placing the game controller on a dedicated charging device such as an inductively coupled charging pad or its charging docking station. Wireless charging can continue even when the gaming controllers are being moved, when in use during the gaming session, and certainly when the controller is left by the user in some random location in the area in which the system is installed. A transmitter beams optical power, such as a laser beam, to an optical power receiver located on the controller itself, which, using a photovoltaic cell and an appropriate voltage converter, converts the optical beam power to a current for charging the battery. A beam aiming mechanism, such as a scanning mirror, is provided to ensure correct tracking of the game controller, according to the outputs of a beam tracking application.

A method includes obtaining information representing a current state of communication with a user equipment (UE) performed using one or more beams. The method also includes comparing the information to statistical historical state information to determine one or more best next narrow beam candidates. The method further includes performing a beam search using the one or more best next narrow beam candidates in order to select a next narrow beam. The method also includes communicating with the UE using the selected next narrow beam.

The application discloses a dynamic hybrid beam tracking system for satellite communication. The system divides the beam tracking into three operation modes according to the current reference antenna steering in the memory, the antenna steering updated by the mechanical three-axis transmission shaft, the satellite incoming path direction relative to the antenna main shaft direction of the user terminal, the received signal strength indicator and the predefined antenna field of view. The three operation modes include: the first mode, using coarse beams to realize large range tracking at a low sampling rate; the second mode, using fine beams to realize medium range tracking at the same low sampling rate; and the third mode, using fine beams to realize small range tracking at a high sampling rate. The system can realize accurate and adaptive beam alignment to improve the satellite communication efficiency.

An optical sensor assembly including a diffractive optical element (DOE) responsive to an optical input beam and a refractive lens responsive to a shaped optical beam from the DOE. The lens focuses the shaped optical beam to provide a center beam having a short focal length and an outer beam having a long focal length. A sensor is positioned in front of the long focal length and is responsive to the shaped input beam from the lens. A fiber is positioned within a center opening of the sensor so that an input facet of the fiber faces the DOE and is located at the first focal length. The sensor is positioned relative to the DOE and the position of the input beam is controlled so that the center beam impinges the input facet and the outer beam impinges the sensor.

The invention provides a predictive beam tracking and covering method and system for a low-orbit satellite data link, and belongs to the crossing field of satellite communication and digital twinning technology. The method comprises the following steps: acquiring a satellite ephemeris and a high-dynamic user forecast trajectory, carrying out time alignment and coordinate unification, fusing and predicting satellite-ground relative motion, and carrying out beam tracking and covering. And carrying out feedforward calculation on future channel parameters and beam forming parameters, carrying out inter-satellite switching pre-judgment based on a value function, and realizing seamless relay by adopting joint beam migration. A digital accompanying verification system and a physical system operate synchronously, a high-fidelity environment and channel simulation are constructed, algorithm sandboxes of a shadow mode and a test mode are introduced for parallel comparison, key performance indexes are calculated online and visually presented, and decision arbitration and safe issuing are supported. Therefore, the link continuity in a high-dynamic scene is improved, the test cost and the engineering risk are reduced, and online optimization and operation and maintenance analysis are supported.

A method, system and apparatus for wireless device (WD) sensing for improved beam tracking are disclosed. According to one aspect, a method includes transmitting a sensing signal in a first beam direction on a transmit beam having a first beam pattern. The method also includes receiving a signal from a second beam direction on a receive beam having a second beam pattern. The method also includes determining whether the received signal includes a reflected signal from a reflector located at the network node based at least in part on knowledge of properties of the reflected signal.

The present application relates to the technical field of optical thickness measurement, in particular to a kind of ice thickness measurement method based on laser technology, comprising the following steps: first and second wave band laser beam coaxial superposition lock initial phase difference generation calibration set, analysis beam table bottom interface reflection transmission and utilize detector to capture waveform, separate time of flight difference and compare double wave band propagation time delay to generate characteristic matrix, extract propagation power attenuation and combine dynamic refractive index to correct light speed to obtain geometric thickness result numerical value.In the present application, by constructing double wave band interface reflection analysis mechanism, the non-uniform beam tracking denoising ability is strengthened, the distortion interference caused by multipath scattering is effectively solved, the inherent wave band delay jitter is separated, and the signal attenuation caused by medium loss is reduced, combined with refractive compensation attenuation, the physical space solving accuracy is corrected, the bubble and inclination optical path error are eliminated, the detection purity is ensured, and the ice layer physical thickness reconstruction stability and monitoring precision are greatly improved.

Methods, systems, and devices for satellite beam tracking of individual mobile terminals are described. Communication services may be provided to the mobile terminals via beamformed spot beams that track the movement of the mobile terminals. To generate beamformed spot beams, channel state information based on the mobile terminals' positions may be determined based on measurements of signals communicated with the mobile terminals. Beamforming coefficients based on the channel state information may be applied to position the beamformed spot beams at the center of each mobile terminal's position. The beamforming coefficients may be periodically modified so that the beamformed spot beams remain at the center of the mobile terminal's moving position.

The invention discloses an OTFS-based communication and inductance integration method, apparatus and device, and a medium. The method comprises the following steps: firstly, receiving first time domain continuous signals sent by a plurality of users respectively; the antenna array is separated into a plurality of second time domain signals; demodulating into a time delay-Doppler domain symbol matrix according to an OTFS modulation method; denoising the time delay-Doppler domain symbol matrix according to a preset first LSTM network, and outputting a first matrix; estimating a first off-grid component by adopting a preset off-grid estimation method; performing off-grid error calibration on the first off-grid component according to a preset second LSTM network, and outputting a second off-grid component; and predicting the position of the user by adopting a beam tracking method of extended Kalman filtering. According to the invention, low-delay and high-reliability communication and sensing cooperation can be realized in a high-speed mobile scene, and the communication reliability and the sensing capability in a high-mobility environment are remarkably optimized.

A computer-implemented method (400), performed by a network node (120), for determining a candidate beam for a beam transition by a wireless communications device (100) in a beam grid, comprises: monitoring (302) beam tracking data from a plurality of wireless communications devices (110) at a plurality of locations in the beam grid over a period of time; generating (316) a beam grid history comprising monitored beam tracking data; and determining (418), based on at least the beam grid history and current beam measurement data received from a wireless communications device (110) at a location in the beam grid, at least one candidate beam for a beam transition by the wireless communications device (110).

Various implementations disclosed herein include devices, systems, and methods to implement pass-through effects via use of programmable elements (e.g., GPUs) in a captured image-rendered content combination pipeline. This can involve implementing a programmable block in a captured image-rendered content combination pipeline that can apply effects to pass-through video between an ISP (e.g., a pass-through source) and fixed display pipeline hardware, in which captured image data is processed (e.g., modified and combined with rendered content) in stages that must begin / end according to timing constraints in order to ensure timely display (i.e., live pass-through via beam tracking) (i.e., less than a full frame is processed at a time).

There is a need for a beam tracking technique that reduces the time needed to perform a beamforming procedure and that reduces beam overhead. The apparatus may determine a mapping between a first beam associated with a first type of channel and a second beam associated with a second type of channel. In an aspect, the first type of channel may be different than the second type of channel. The apparatus may receive the first beam associated with the first type of channel and the second beam associated with the second type of channel. In an aspect, the first beam and the second beam may be received from a second device.

The invention belongs to the technical field of wireless communication, and particularly relates to an intelligent reflector beam tracking method based on space-time joint optimization. The method comprises the following steps: firstly, performing covariance analysis and spatial pyramid pooling processing on historical channel state information of a user, and inputting the historical channel state information into an LSTM network to extract time sequence features; meanwhile, a graph structure is constructed based on user position and distance information, and spatial features are extracted by using a graph attention network. And then, adaptive weighted fusion is carried out on the time sequence and spatial features through a designed spatio-temporal information fusion module, and unified system state representation is generated. And finally, inputting the fused features into a regression network to realize high-precision prediction of the azimuth angle. The method effectively improves the accuracy and robustness of beam tracking in a dynamic environment by jointly mining the space-time correlation characteristics in the channel and position data.

The invention discloses an unmanned aerial vehicle three-dimensional positioning and communication beam prediction method based on multi-base-station cooperation, and aims to solve the problems of speed ambiguity and communication beam pointing lag caused by a high-speed moving target in single-base-station observation in the prior art. The method comprises the following specific steps: constructing a three-dimensional tensor model of a received signal of the multi-base-station communication perception integrated network; the distance, the angle and the Doppler frequency shift of each base station visual angle are jointly estimated through parallel factorization, and automatic parameter pairing is achieved; performing global association on the observation data of the multiple base stations based on a spatial proximity criterion; a multi-base-station combined speed projection equation set is constructed, and an unambiguous unmanned aerial vehicle three-dimensional speed vector is solved; establishing a state transition model based on a motion state, and predicting a target position at a next moment; and designing a dynamic beam forming weight according to the predicted position. According to the invention, speed estimation fuzziness can be effectively eliminated, accurate beam tracking of the high-speed mobile unmanned aerial vehicle is realized, and the spectrum efficiency of a communication link is improved.

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may implement a technique for receiving information of multiple bits via a single wake-up signal (WUS). For example, the UE may receive a configuration indicating a number of sequences associated with a plurality of sequences of the WUS. The UE may receive, when operating in a sleep mode, a WUS including a plurality of sequences, wherein each sequence is associated with a single bit and the plurality of sequences indicate one or more operations. The UE may perform one or more operations indicated by the plurality of sequences of the WUS when operating in a sleep mode. In some other examples, the UE may implement multiple wake-up radios (WURs) such that the UE may receive multiple WUSs simultaneously. In some aspects, the UE may use a simultaneous WUS received via the WUR for beam tracking or other operations.

According to the adaptive front and back millimeter wave beam tracking method provided by the invention, throughput and time delay can be considered at the same time in a scene that the node uses a millimeter wave wireless local area network for communication and moves quickly. According to the method, a front counter and a rear counter are introduced into a traditional rear beam tracking method, when packet loss occurs, the communication time delay is preferentially guaranteed according to rear beam tracking and recorded to the rear counter, and after a threshold value is reached, more aggressive front beam tracking is switched to guarantee the throughput, so that the communication time delay is guaranteed. And after a stable condition is satisfied, switching to post-wave beam tracking is carried out. A simulation result verifies that the adaptive front and rear beam tracking method can ensure time delay similar to that of a rear method, and the throughput is superior to that of the rear method.

The invention provides an adaptive beam tracking method and system based on a multi-modal fusion technology, and the method specifically comprises the following steps: S1, obtaining multi-modal data in a target scene, and carrying out the preprocessing of the multi-modal data; the multi-modal data comprises RGB image data, laser radar data and GPS positioning data; s2, the preprocessed multi-modal data are input into a multi-modal feature fusion model based on RepVGG-B1g4 and Transform, and multi-modal fusion features are obtained; and inputting the multi-modal fusion feature into an adaptive decision fusion model based on an attention mechanism to obtain a beam sequence weight so as to determine the optimal beam configuration of communication between the base station and the mobile terminal in the target scene. According to the method, the problems that the millimeter wave beam tracking performance is degraded due to extreme dynamic scenes, and complex propagation environments and user behavior characteristics are difficult to accurately represent by single communication modal information are solved.

The present application relates to the technical field of millimeter wave communication, and particularly relates to a particle filtering-based beam tracking method and system for a millimeter wave scene, which dynamically determines whether a tracking step needs to be performed by comparing the signal-to-noise ratio fading of beams formed before and after time slots. If tracking is needed, two perturbation angles are generated near the pointing angle of a data beam in the previous time slot to form a measurement beam, and the received signal strength ratio of the measurement beam is taken as the observation value of an adaptive particle filtering algorithm. Angle particle sets are generated in a half-wave width interval centered on the current beam pointing angle, the particle weights are calculated in combination with double non-central F distribution, and then the optimal particle is selected to update the data beam direction. The present application can realize efficient tracking of millimeter wave beams in different mobility level scenes, guarantee communication performance, reduce tracking overhead, and adaptively adjust the overhead according to the user moving speed, which can significantly improve the beam tracking precision, and is particularly suitable for millimeter wave communication in high-speed scenes.