37 results about "Beam tracking" patented technology

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.

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.

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.

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.

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).

This invention relates to the field of optical thickness measurement technology, specifically a laser-based ice thickness measurement method, comprising the following steps: coaxially superimposing first and second band laser beams to lock the initial phase difference and generate a calibration set; analyzing the reflection and transmission at the beam surface and bottom interface and capturing the waveform using a detector; separating the time-of-flight difference and comparing the propagation delay of the two bands to generate a feature matrix; extracting the power attenuation after propagation and combining it with dynamic refractive index to correct the light speed and obtain the geometric thickness result. In this invention, by constructing a dual-band interface reflection analytical mechanism, the denoising capability of non-uniform beam tracking is enhanced, effectively solving the distortion interference caused by multipath scattering; separating inherent band time delay jitter and reducing signal attenuation caused by medium loss; and combining refraction compensation attenuation correction to correct the physical space solution accuracy, eliminating bubbles and tilt angle optical path errors, ensuring detection purity, and greatly improving the stability and monitoring accuracy of ice layer physical thickness reconstruction.

The application discloses a kind of beam tracking method and device, it is related to wireless network technical field, method includes S1 constructs beam change prediction model;S2 trains optimization beam change prediction model;S3 obtains MCS statistical information and SSB scanning result information;S4 generates state vector;S5 predicts output beam index variation;S6 adds beam index variation to the best wave speed index of current SSB scanning result, constructs the actual sending beam of next window period;S7 utilizes sending beam to carry out data transmission;S8 judges whether to reach beam switching point, if yes then progress S3;Otherwise, progress S6;Introduce MCS link quality information, carry out depth fusion with the high-precision MCS link quality information of coarse-grained SSB spatial domain information, improve the performance of beam tracking;Periodic interval trigger is used, timely beam adjustment can be carried out between two SSB scanning periods, and base station can also continuously observe the effect of decision during interval window.

A method according to one embodiment of the present specification comprises the steps of: receiving control information from a base station; receiving a primary synchronization signal (PSS) from the base station; and receiving a secondary synchronization signal (SSS) from the base station. The PSS is based on one or more sequences. One or more cyclic shift values associated with the one or more sequences are determined on the basis of the control information.

The application provides a QoS guarantee low-overhead multi-point cooperative beam tracking method based on alternating training and feedback, solves the problem that the beam training of a non-cell MIMO system has high overhead, and the tracking performance and resource utilization rate are difficult to balance. The method comprises two modules of AP training sequence decision and alternating training beam tracking. Path loss information is first collected and input into the AP training sequence decision module, and the optimal AP training sequence is obtained through offline training. Then the sequence is input into the alternating training beam tracking module, and through the iteration process of newly added scanning beams, bottleneck user identification and beam allocation, the optimal beam scheme is output by on-demand training. The application adopts a dynamic alternating training strategy, and double time scales are used to realize adaptive adjustment of the training length and optimal decision of the AP training sequence, thereby reducing the training overhead, guaranteeing the system QoS, having robustness and scalability, and being suitable for user mobile beam tracking in a high-frequency communication scene.

The application discloses a UAV beam tracking method based on deep learning and layered scanning cooperation, which comprises the following steps: S1, signal receiving and preprocessing; S2, deep learning intelligent sensing and routing decision; S3, layered codebook scanning; S4, time domain smoothing and trajectory tracking; and S5, beamforming execution. The application introduces a deep network to replace a complex matrix decomposition operation, realizes fast and stable tracking of a phased array antenna beam of a UAV under complex channel conditions such as multipath propagation and low signal-to-noise ratio, solves the problems of poor timeliness and insufficient robustness of a traditional algorithm under a limited computing power platform, has extremely high system reliability, dynamic tracking stability, and also considers speed and accuracy.

A non-terrestrial, wireless communications network (NTN) can assist User Equipments (UEs) in tracking beams generated by NTN base stations for reselection purposes. The NTN determines one or more candidate beams to which the UE can reselect (e.g., while the UE is in an inactive or idle state with respect to controlling radio resources) based on a geographical location of the UE and respective existing and / or predicted non-terrestrial locations of one or more non-terrestrial base stations of the NTN. The NTN transmits an indication of the one or more candidate beams to the UE (and optionally other beam-related information, such as radio access resources and relative priorities), and the UE can reselect a subsequent beam based on the indication received from the NTN. The UE can locally store a mapping of candidate reselection beams to geographical locations for ease and efficiency of future reselections.

Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless device includes a controller configured to generate a null data packet (NDP) beacon frame, where the NDP beacon frame contains information regarding a beam sector used to transmit information for helping integrated millimeter wave (IMMW) access point (AP) discovery and beam tracking, and a wireless transceiver configured to transmit the NDP beacon frame in an IMMW link.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, for one or more nodes, capability information regarding a beam tracking capability of a backscattering radio of the UE. The UE may perform beam tracking in accordance with the beam tracking capability. The UE may transmit, for the one or more nodes, beam information based at least in part on the beam tracking. Numerous other aspects are described.

The application provides a high-speed frequency hopping device and a high-speed frequency hopping method, and relates to the technical field of satellite communication. The high-speed frequency hopping device comprises a high-speed frequency hopping module, the high-speed frequency hopping module comprises a first-stage high-speed frequency hopping unit and a second-stage high-speed frequency hopping unit; the first-stage high-speed frequency hopping unit is used for generating a first local oscillator signal matched with a beacon signal, performing down-conversion processing on the beacon signal based on the first local oscillator signal, and obtaining a fixed intermediate frequency band signal; the second-stage high-speed frequency hopping unit is used for generating a second local oscillator signal matched with the fixed intermediate frequency band signal, performing again down-conversion processing on the fixed intermediate frequency band signal based on the second local oscillator signal, and obtaining a low intermediate frequency signal; and the low intermediate frequency signal is used for beam tracking. Through twice down-conversion processing on the beacon signal, the application improves the accuracy and precision of screening out stray signals and image frequency signals, and improves the anti-interference ability of beacon tracking.

The present application relates to the technical field of communications, and in particular to a beam tracking method and apparatus, which aim to implement beam tracking without beam training by means of a terminal reporting orientation information and an access network device feeding back beam information to be used by the terminal, thereby reducing signaling overheads and delay overheads and improving user experience. The method may be performed by an access network device, and comprises: receiving orientation information from a terminal; and sending first information to the terminal on the basis of position information of the terminal and the orientation information, the first information being used to determine a first beam, and the first beam being used for the terminal to communicate with the access network device.

Methods and apparatuses for beam tracking. A method performed by a user equipment (UE) includes receiving information related to acquisition of channel direction, receiving an indication of a first transmission configuration indication (TCI) state and a second TCI state, and identifying a first reference signal (RS) and a second RS associated with the first and second TCI states, respectively. The method further includes determining, based on the information, a first metric and a second metric associated with the first and second RSs, respectively, determining a third metric based on the information that is a function of the first and second metrics, and transmitting the third metric.

Techniques for estimating channel parameters of a wireless channel between an AP and UE. A method is performed by a network node configured to control the AP. The method includes acquiring, at a first timeslot, channel parameters from measurements on a first reference signal sent on the wireless channel. The method includes acquiring, at a second timeslot, subsequent and adjacent to the first timeslot, measurements on a second reference signal sent on the wireless channel. The method includes estimating the channel parameters at the second timeslot using sparse signal detection based on the measurements on the second reference signal converted into an angle domain derived from the channel parameters acquired at the first timeslot.

The present disclosure provides a beam tracking method, device, storage medium and program product, relates to the technical field of communication, and realizes a beam tracking method for perception-assisted communication, so as to improve communication quality. The method comprises the following steps: acquiring signal measurement information, wherein the signal measurement information comprises communication signal measurement information and perception signal measurement information between a first node and a second node; and determining, based on the signal measurement information, a use strategy of beam tracking of the first node to the second node, wherein the use strategy of the beam tracking is used for indicating to turn on or turn off the beam tracking.

The application discloses a beam angle prediction method based on neural network and Kalman filtering fusion, and belongs to the technical field of millimeter wave communication.The method adopts a single-layer neural network without an activation function to learn the behavior of LSTM, extracts a weight matrix of the single-layer neural network as a state transition matrix of a Kalman filtering algorithm, and performs beam tracking by executing the Kalman filtering algorithm.The application fuses the strong robustness of the Kalman filtering algorithm on the basis of accurate prediction of the beam tracking angle; and since the LSTM has strong learning ability, dense observation of a communication target is not needed, the observation interval can be artificially set according to cost, the prediction cost is greatly reduced, and the performance of the beam tracking system is improved.

This invention discloses an intelligent beam tracking method and apparatus for mobile environments, relating to the field of wireless network technology. The method includes: S1 constructing a beam tracking model; S2 training and optimizing the leader and follower agents; S3 acquiring MCS statistics and SSB scan results during the k-th window in real time; S4 constructing a leader state vector; S5 predicting the final leader action; S6 generating a candidate action set for followers; S7 generating follower state vectors; S8 predicting the final follower action; S9 constructing the actual transmission beam; S10 adjusting the MCS to transmit data using the transmission beam; and S11 determining whether it is time to enter the next SSB scan cycle. If yes, return to S3; otherwise, return to S9. This method significantly improves the effective user throughput and system robustness of 5G millimeter-wave systems in mobile scenarios.

Apparatuses and methods for uplink (UL) beam tracking. A method performed by a user equipment includes transmitting a physical uplink shared channel (PUSCH). The PUSCH includes a first set of resource elements (REs) including a first demodulation reference signal (DMRS) and a first UL-shared channel (SCH), the first DMRS and UL-SCH based on a first spatial transmission filter, and a second set of REs including first N reference signals (RSs) based on second N spatial transmission filters, respectively, where N is larger than or equal to 1. The method further includes receiving a first channel including information based on measurement of the first DMRS and the first N RSs, determining, based on the first channel, a third spatial transmission filter for the first DMRS and the first UL-SCH, and transmitting the first set of REs based on the third spatial transmission filter.

The present application relates to light beam tracking device and method, specifically relates to phase control component control method based on partition time sequence rotation control, liquid crystal optical phased array light beam tracking system and method. In order to solve the prior art exists liquid crystal optical phased array low response frequency causes residual tracking error, reduces the light intensity stability, and the dynamic distortion caused by the process of liquid crystal molecule reorientation leads to the spot center drift, power drop or even instantaneous lockout, the deficiency, the present application is based on the phase control component control method of partition time sequence rotation control, the phase control component is set to N region, N >= 2;The deflection angle of light beam or the phase to be compensated is calculated, which is converted into the phase distribution of each region of the phase control component, the number of rotation is calculated, the region to be activated is calculated, the phase is updated, and the rotation control is carried out on each region in turn until the spot centroid position or wavefront phase meets the design requirements.

The present disclosure relates to "sensor-assisted beam tracking." This application relates to apparatuses and components, including devices, systems, and methods for determining a beam for communication between a user equipment and a base station. For example, an angle of arrival estimate can be used to determine a beam for communication.

Wireless devices (WDs) and methods for low-power millimeter wave (mmWave) reception for beam tracking are disclosed. According to one aspect, a secondary WD is configured to receive an amplitude shift keying (ASK) modulated signal from a primary WD using at least three antenna branches of a low-power receiver. In each antenna branch, the secondary WD down-converts the ASK modulated signal using a local oscillator signal from a self-excited polyphase oscillator applied in a polyphase mixer to provide a polyphase intermediate frequency signal. The secondary WD determines a beam direction of the ASK modulated signal by correlating a phase-adjusted combination of the intermediate frequency signals from the antenna branches with a reference sequence, and provides the beam direction to a main receiver of the secondary WD. The beam direction can be used for initial communication between the second receiver and the primary WD.

The application belongs to the technical field of intelligent railway wireless communication, and particularly relates to a millimeter wave wireless backhaul channel modeling and performance optimization method based on position in a station scene. The method innovatively combines dynamic channel measurement, position correlation parameter extraction and beam tracking technology, realizes accurate characterization of channel characteristics and significant improvement of system performance in the process of train entering and leaving the station. Through 26GHz millimeter wave channel dynamic measurement in the station scene, the data of omnidirectional antenna and phased array antenna are compared to determine the source of multipath; based on the 3GPP space channel model framework, key channel parameters changing with the position of the transmitting end are extracted; a position-based space channel model is constructed, and the beam direction is dynamically adjusted combined with the beam tracking technology, so as to realize the optimization of system throughput and bit error rate. The application effectively solves the problem that the traditional static model cannot adapt to the dynamic scene of train entering and leaving the station, and provides reliable technical support for intelligent railway high-speed data backhaul.

The application discloses a kind of robust security beamforming and target tracking method and equipment of full duplex sensing integration system, by dual-function radar communication base station is executed.Step includes: base station receives radar echo signal, with extended Kalman filter real-time tracking estimation downlink mobile user motion state, obtain predicted channel state information;Based on this information, design downlink beamforming matrix, construct uplink receive beamforming vector, optimize artificial noise signal covariance matrix;With Cramer-Rao bound quantification potential eavesdropper angle estimation error, construct uncertainty set;Under the requirements such as satisfying secrecy rate, angle estimation error, beam tracking mean square error, construct the joint optimization problem of minimizing system total transmit power;Non-convex semi-infinite constraint is converted into linear matrix inequality and is solved iteratively, and optimal parameter is obtained;Accordingly control base station, realize robust security beamforming and target tracking, solve the problem of safe communication under dynamic environment.

This invention discloses a phased array control chip with a beam scanning accelerator, belonging to the field of phased array control technology. The invention includes a CORDIC unit, an amplitude weighting unit, a weight synthesis unit, a weight distribution unit, a configuration interface, and an instruction parser. The CORDIC unit calculates the phase offset based on the target azimuth and elevation angles; the amplitude weighting unit calculates the amplitude weighting coefficients; the weight synthesis unit synthesizes complex weights; the weight distribution unit distributes the weights to each transceiver channel; and the instruction parser parses the main processor instructions and initiates the calculation process. This invention achieves rapid beam weight calculation through a dedicated hardware accelerator, reducing the main processor's CPU utilization by more than 90%; the calculation latency is less than 1μs, and the total weight distribution time is less than 3μs, meeting the requirements of high-speed beam tracking; it supports flexible configuration of multiple amplitude weighting functions; and the power consumption is only 50mW. This invention is suitable for large-scale phased array systems, significantly improving system response speed and reducing the main processor load.

This invention belongs to the field of satellite communication technology and discloses a design method for beam control software of a phased array antenna with integrated beam tracking. The steps include: adjusting the phase shift value of the array elements through the beam control module of the antenna array itself, actively controlling the beam to deflect within a preset range near the main axis of the antenna and collecting the power reported by the host, and calculating the corresponding error voltage based on the power reported by the host; the beam control software uses the acquired error voltage value as the core feedback parameter, performs parameter matching query through a lookup table constructed from the actual measured parameters of the antenna at the factory, quickly obtains the beam pointing compensation value, calculates the phase shift value of each array element based on the compensation value and the main beam pointing and sends it down, thereby realizing dynamic beam tracking, and comparing the current error voltage value with the target error voltage value to determine whether to continue beam tracking.

A wireless device (WD) and method for low power millimeter wave (mmWave) receiving for beam tracking are disclosed. According to one aspect, a secondary WD is configured to receive an amplitude shift keying (ASK) modulated signal from a primary WD using at least three antenna branches of a low power receiver. In each antenna branch, the secondary WD down-converts the ASK modulated signal using a local oscillator signal from a free-running multi-phase oscillator applied in a multi-phase mixer to provide a multi-phase intermediate frequency signal. The secondary WD determines a beam direction of the ASK modulated signal by correlating phase adjusted combinations of the intermediate frequency signals from the antenna branches with a reference sequence and provides the beam direction to the a main receiver of the secondary WD. The beam direction may be used for an initial communication between the second receiver and the primary WD.