249 results about "Beam tracking" patented technology

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).

The invention discloses a reconfigurable intelligent metasurface beam tracking device, and belongs to the technical field of wireless communication. Specifically, the reconfigurable intelligent metasurface module integrates a large number of metasurface units, a tunable element is embedded to achieve reconfiguration of electromagnetic characteristics, a receiving end of the communication receiving and transmitting module receives reflected signals of the metasurfaces and feeds back the quality of the received signals in the moving process, and the positioning sensing module senses the position of the receiving end in real time. And the codebook calculation module calculates a phase regulation codebook based on the signal quality and the position feedback information, converts the phase regulation codebook into a control voltage value, transmits a corresponding digital control signal to the voltage regulation module, and outputs multiple paths of analog voltages, so that the reflection coefficient of the metasurface array is regulated and controlled, and real-time dynamic wave beam tracking is realized. According to the invention, the coverage range, the transmission rate and the service quality of the communication network are obviously improved.

Disclosed are a method and apparatus for configuring and transmitting a synchronization signal for beam tracking and management in sidelink communication. The method for a first UE comprises the steps of: transmitting one or more BM-S-SSBs to a second UE; and on the basis of the one or more BM-S-SSBs, receiving a measured BSI from the second UE, wherein each of the one or more BM-S-SSBs includes an S-PSS and an S-SSS without a PSBCH.

Antenna systems with beam tracking and scanning ability are described. The antenna systems include one or more reflectors and one or more feeds. The tracked or scanned beam(s) are produced by moving the feed(s) while the reflector(s) is kept static. This greatly reduces the complexity of the antenna beam tracking and scanning mechanism, while providing the highest possible antenna efficiency and gain in a wide angular range. Multiple beams and / or switched beams can also be achieved using multiple feeds and / or switches.

The invention discloses an SER6 Pro antenna with adaptive beam forming capability, comprising: a generation module for generating an initial beam directional diagram based on spatial-temporal correlation analysis of multipath signals; the calculation module is used for updating beam direction parameters in real time by using a Doppler frequency shift estimation algorithm so as to adapt to Doppler frequency shift change of a high-speed mobile user; the suppression module is used for carrying out noise suppression on the beam signal in a frequency domain by adopting an adaptive filter; and the optimization module is used for dynamically adjusting the beam forming matrix and optimizing the beam direction and intensity through an iterative optimization algorithm. The method has the beneficial effects that the problem of inaccurate beam direction identification caused by excessive reflected and scattered signals in a complex multi-path propagation environment is solved; the problem of unstable beam tracking caused by significant change of Doppler frequency shift in a high-speed mobile user scene is solved; and the problem that the signal-to-noise ratio is reduced due to the strong external noise source in a high-interference environment is solved.

The invention provides a satellite beam tracking method and device, electronic equipment and a storage medium, and relates to the technical field of satellite communication. The satellite beam tracking method provided by the invention comprises the steps of determining an operation state of a target terminal and an initial beam range of a target satellite, the operation state including position information, an operation direction, an operation speed and a pre-operation trajectory; based on the position information, the running direction, the running speed, the pre-running track and the initial beam range, a concentrated beam range corresponding to the target terminal is determined, and the concentrated beam range is a circular area and is located in the initial beam range; and when the target terminal moves to a target edge point in the concentrated beam range, generating a beam adjustment instruction corresponding to the target edge point, and controlling the target satellite to perform beam adjustment based on the beam adjustment instruction. According to the invention, the satellite beam adjustment frequency can be reduced under the condition of ensuring stable communication.

Provided are an electronic device and method for wireless communication, and a computer-readable storage medium. The electronic device may comprise a processing circuit, the processing circuit being configured to: on the basis of a result that candidate beams are previously used to perform beam tracking with respect to another device in communication with the electronic device, estimate a prediction probability that each candidate beam is an optimal beam; and on the basis of the estimated prediction probability, select, from the candidate beams, a measurement beam for beam tracking of next time.

The invention provides a dynamic target beam tracking method based on a coverage error range and an adaptive codebook. The method comprises the following steps: constructing a beam tracking scene for a dynamic target; the base station calculates the maximum error range of the dynamic target trajectory in the current time period; the base station adaptively adjusts the beam width and calculates the optimal beam width and the optimal beam orientation; the base station obtains the optimal code word; and the base station obtains a beam tracking result of the dynamic target. According to the invention, the base station calculates the beam orientation by using the trajectory prediction information, the influence of the trajectory prediction error on the beam tracking precision is considered, the generated beam width covers the error range, the influence on the tracking precision due to the increase of the training frequency is avoided, and since the base station adaptively adjusts the beam with the purpose of minimizing the beam switching overhead, the tracking precision is improved. The beam switching frequency is reduced, the problems of high system overhead and long time delay in the prior art are solved, and the real-time performance of beam tracking is further improved.

The invention discloses a terahertz dual-sheet metasurface antenna unit regulated and controlled by an MEMS switch, and belongs to the field of terahertz wireless communication equipment. The filter comprises two layers of quartz glass dielectric substrates. The lower surface of the lower quartz glass dielectric substrate is provided with a bias circuit, the lower surface of the upper quartz glass dielectric substrate is provided with a metal ground, and the upper surface of the upper quartz glass dielectric substrate is provided with a 1-Bit radiation unit. The 1-Bit radiation unit is composed of a double-sheet microstrip patch and an MEMS switch located between the double-sheet microstrip patch. An opening is formed in a middle connecting line, and a rectangular branch knot is arranged on the outer side of each of the left patch and the right patch; different working states of the MEMS switch change the surface current mode of the biplate microstrip patch, so that the 180-degree reflection phase difference of the radiation unit is realized. The metasurface antenna unit has the advantages of being low in profile, simple in structure and high in integration level, and beam forming and beam tracking of terahertz high gain and narrow beams are achieved.

The invention relates to a millimeter wave beam tracking method fusing vision and 3D point cloud perception, and belongs to the field of wireless communication. The method faces a millimeter wave wireless communication system, combines vision and 3D point cloud sequence information in an environment collected by a camera deployed in a base station and a laser radar, utilizes a constructed multi-modal sequence-to-sequence beam tracking model to perform depth feature extraction on an image and a point cloud, realizes information interaction between modals through machine learning, and realizes multi-modal beam tracking. A uniform time sequence fusion feature representation form is formed, and real-time prediction of a current beam and continuous tracking of a plurality of beams in the future are realized. According to the method, the gating recurrent neural network is introduced, the multi-mode sequence is constructed to the sequence model for beam tracking, the beam tracking precision and stability can be effectively improved, and the communication efficiency of the millimeter wave communication system is guaranteed.

The invention relates to a millimeter wave beam tracking method based on comparative learning, and belongs to the field of wireless communication. The method is oriented to a millimeter wave communication system, combines vision and laser radar information in an environment collected by multiple sensors installed in a millimeter wave base station, utilizes a machine learning model to carry out feature processing on data of different modes, and adopts a multi-mode fusion strategy based on comparative learning to enhance a synergistic effect among the data of each mode, so as to achieve a multi-mode fusion effect. A method of predicting a current beam in real time and tracking a plurality of future beams is obtained. According to the invention, multi-modal data fusion and comparative learning are combined for beam tracking, the precision and stability of beam tracking can be effectively guaranteed, and the communication efficiency of a millimeter wave communication system is ensured.

Methods and apparatuses are disclosed for performing fast beam switching in a high-frequency wireless communication environment. Higher frequencies reduce transmission wavelength, which allows for an increased number of antennas and an increased number of beams. Therefore, beams become narrower and are more prone to failure. The UE must be capable of quickly identifying the beam failure and switching to a new beam. Therefore, the UE is capable of receiving multiple beams from the base station and configures both for testing and immediate use. In some cases, the UE can receive multiple beams for testing and assumes a default beam while feeding back to the base station a preferred beam. To support the larger number of available beams, MAC-CE and DCI are modified to identify this increased number of states. Alternatively, two MAC-CEs are sent, each containing a different group of states, and the DCI identifies both the group and the selected state.

The invention discloses a microwave laser composite antenna off-axis tracking method suitable for deep space exploration, and relates to the field of spaceflight deep space exploration. According to the method, Ka frequency band link angle tracking is completed firstly, and then a laser link is guided to be captured and tracked rapidly. Microwave link wave beam off-axis tracking is adopted, and simultaneous real-time target tracking of a microwave link and a laser link is achieved; the Ka beam is used for guiding the laser beam to rapidly capture and track, so that the laser beam coarse tracking robustness is improved, and the capture time is reduced; after the laser link finishes fine tracking, the system performs target tracking by using laser beam tracking, and compared with microwave Ka beam tracking, the tracking precision is higher; by using microwave link wave beam off-axis tracking, the problem that microwave link wave beams and laser link wave beams cannot be simultaneously aligned with a target due to inconsistent directions of a microwave electric axis and a laser optical axis is avoided. The scheme is simple and easy to realize, and can be directly applied to the existing integrated antenna.

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.

Aspects presented herein may improve beam management and neighbor cell(s) monitoring related characteristics on a UE side, which may include improved power consumption, configuration volume reduction, and more robust and efficient beam tracking procedures for UEs receiving and monitoring SSBs transmitted by a base stations. In one aspect, a UE is configured to apply an SSB IDs classification based on a systematic mapping configuration that maps a set of SSB IDs to a plurality of SSB beams of a network entity, each SSB beam of the plurality of SSB beams being associated with one SSB ID of the set of SSB IDs and covering a range of azimuth angles and a range of elevation angles. Based on the mapping configuration and the semi-deterministic SSB beams sweeping pattern, the UE may classify SSB IDs into different categories and prioritize and deprioritize measurements for one or more SSB IDs.

The present invention relates to a method for beam tracking enhancement in V2X scenarios in multiple antenna arrays-based communication networks using spatial aliasing. The main objective of the invention is to provide a method of circumventing the impact of the cumulative beam tracking error in multiple antenna arrays-based communication network such as in V2X scenarios.

A broadband millimeter wave beam tracking method based on vehicle movement trajectory recognition, which relates to the field of wireless communication. First, a rough estimate of the beam angle is obtained according to the position and attitude of two vehicles in a communication scenario at an initial moment, and a state of the vehicle is judged according to the sudden change rate of the transmitting beam angle starting from a next moment: if it is in the sudden change mode, the observation value ŷk of the received signal is calculated; if it is in the smooth change mode, the observation value I is calculated; the observation values in different modes are input into an improved particle filter algorithm for fine beam estimation, to obtain optimal values xk and uk; and the beam optimal values at the current moment are used to re-estimate a pair of the forming vector of the transmitting beam and the forming vector of the receiving beam to adjust the vehicle and the pilot signal at the next moment is transmitted; by continuously adjusting the beam forming vector at each moment, a beam tracking within an error range is obtained. The present application improves the accuracy and reliability of beam tracking in case of sudden angle change.

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 belongs to the technical field of wireless communication, discloses a flight equipment adaptive beam tracking method and system based on multi-source information fusion, and solves the problem of how to efficiently and quickly adjust the beam direction by an antenna array to maintain the optimal signal quality and communication rate in a high-dynamic mobile scene, such as communication of low-altitude flight equipment. The invention provides an innovative solution by combining various sensing technologies such as an attitude sensor, a GPS module and a barometer, accurate beam tracking of a high-speed moving target can be realized on the premise of ensuring low cost, and the real-time performance and reliability of a low-altitude communication system are remarkably improved. By introducing an intelligent algorithm to carry out real-time calculation and adjustment of the phase shift matrix, the method can adapt to complex and changeable environmental conditions, and greatly reduces the number of cell switching times caused by user position changes, thereby reducing the maintenance cost and energy consumption of a communication system.

A method of performing beam tracking in high-speed mobile UAV communications by a base station (BS) according to an embodiment of the present invention may comprise an initial beam training step including an operation of confirming an initially estimated channel for a k-th UAV among a plurality of UAVs connected through an antenna, and an operation of confirming an mk-th column index that maximizes an absolute value of a beam domain channel as an initial AoA; and a beam tracking step including an operation of tracking an actual AoA by applying a KF to the initial AoA, and various other embodiments may be possible.

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 present invention relates to a millimeter-wave beam tracking method in a microwave and millimeter wave heterogeneous network scenario, including: establishing a millimeter-wave beam tracking problem in the microwave and millimeter wave heterogeneous network scenario; for the millimeter-wave beam tracking problem, constructing a deep neural network (DNN) fusion model that performs millimeter-wave beam tracking by using time sequence microwave channel information and user location information; pre-training the DNN fusion model by using training data; configuring a pre-trained beam tracking deep learning model in a base station controller of an actual access network, performing millimeter-wave beam tracking according to actually input microwave channel information and user location information, and selecting a millimeter-wave optimum beam; and collecting the input information to continuously train and update the DNN fusion model.

The present disclosure generally relates to wireless communication systems, and more specifically to an apparatus and method for multi-antenna based beamforming in wireless communication systems. A method for operating a terminal in a wireless communication system may include: receiving synchronization signal blocks (SSBs) transmitted from multiple beam groups in a common frequency region; selecting an optimal beam group based on measuring signal strength of the SSBs; receiving reference signals based on a subchannel allocated to the optimal beam group; and performing beam tracking based on the reference signals.

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.

The utility model discloses an intelligent metasurface wireless communication system based on radar assistance. The intelligent metasurface wireless communication system comprises a radar, a controller, a voltage control module and an intelligent metasurface structure which are connected in sequence. The controller is used for receiving position information detected by the radar and converting the position information into a bias voltage coding sequence; the voltage control module is used for outputting bias voltage to the intelligent metasurface according to the bias voltage coding sequence; the intelligent metasurface comprises a plurality of metasurface units arranged in an array, each metasurface unit comprises a variable capacitance diode, and the variable capacitance diodes are driven by the bias voltage to realize dynamic beam tracking. The wireless communication system provided by the utility model not only can improve the capability and stability of wireless communication between the base station and the target and enlarge the wireless coverage range of the base station, but also can be used in various illumination conditions such as heavy fog, night and the like and various wireless communication scenes such as urban traffic scenes, indoor scenes and the like.

A base station and a user equipment (UE) communicate the configure uplink communications in a multi-transmission and reception point (multi-TRP) configured network. The UE receives an indication of multiple sounding reference signal (SRS) resources that are to be used for uplink beam tracking, wherein each SRS resource is associated with different spatial relation information, transmits SRS using the associated spatial relation information, receives an indication that a user equipment (UE) is configured with one or more beam pairs, the one or more beam pairs configured by the network based on the SRS and transmits an uplink channel based on the indicated one or more beam pairs.

The present embodiments relate generally to enabling an end user - e.g. medical physicists - to monitor radiation therapy and, with integration to the LINAC, adaptive radiotherapy. Embodiments record signals already released during radiotherapy, requiring no new irradiation of the patient for in vivo, in line, dose monitoring. Furthermore, as the transducers will be coupled to the patient with ultrasound gel, the present embodiments are not invasive to patients and will not introduce new discomfort during therapeutic procedures. The addition of the RiAD system provides the end user with additional information during the treatment of the patient, allowing for real-time beam tracking and dosimetry, enabling the end user to practice adaptive radiotherapy. The RiAD system enables the end user to ensure that proper dose delivery is occurring with each new beamlet and dose deposition, empowering them to adapt the medical treatment as it is performed and increase its precision in conventional electron beam radiotherapy, electron FLASH radiotherapy, and intraoperative electron beam radiotherapy.

The present invention discloses a communication perception integration method based on SLAM and beam management, wherein the base station and the user first use full-range beam scanning to estimate the optimal beam direction at the current moment. The user uses the angle information obtained in the beam scanning stage and the acceleration measurement output by the inertial measurement unit to execute the SLAM algorithm, obtain the position of the user and environmental features, and complete the user positioning and radio map construction at the current moment. At the next moment, the user uses the inertial measurement unit to predict the user's rough position, generates a priori beam angle search range based on the radio map constructed at the previous moment, and forms an adaptive search codebook for beam tracking. Finally, a switching module is designed to enable the system to switch between the full-range beam scanning and small-range beam tracking modules to ensure the reliability and effectiveness of communication and perception.

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.