168 results about "Beam tracking" patented technology

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.

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 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.

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.

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 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.

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 present invention relates to the technical field of ocean stereo observation networks, and discloses a Beidou communication fusion processing method, device and readable storage medium, including: S1, obtaining messages from the separation service platform, the Beidou satellite commander and the superior fusion machine respectively, loading the positioning information and observation information in the messages into the access queue, and loading the user card information, the commander status, beam tracking and satellite position in the messages into the monitoring queue; S2, according to different data sources, parsing the positioning information and observation information in the messages according to the corresponding protocols, converting the parsed data into a standard format, and loading it into the standard queue; S3, comparing the positioning information and observation information from the separation service platform in the standard queue with the positioning information and observation information from the Beidou satellite commander, removing duplicate information, etc.; the method and device realize the main functions such as data secure transmission, fusion and duplicate removal, and on-demand distribution.

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.

Systems, methods, apparatuses, and computer program products for beam tracking to reduce latency. A method may include receiving from a network node, a radio resource control reconfiguration message. The method may also include sending a radio resource control reconfiguration complete message in response to the radio resource control reconfiguration message. The method may further include performing radio resource management measurements according to information contained in the radio resource control reconfiguration message. In addition, the method may include preparing a measurement report based on the radio resource management measurements. Further, the method may include sending the measurement report to the network node. The method may also include maintaining a spatial relation with a cell or a carrier that is identified in the measurement report, as indicated in the radio resource control reconfiguration message.

The invention relates to a method, an apparatus and a computer program product. According to some examples, there is provided an apparatus for a user equipment, the apparatus comprising means for obtaining, from a network access node, a low-power synchronization signal corresponding to a first beam and one or more beam tracking signals corresponding to one or more other beams, wherein the low power synchronization signal is associated with one or more beam tracking signals; estimating a respective receive power and / or receive quality associated with the first beam and one or more other beams based on the obtained low power synchronization signal and one or more beam tracking signals; and selecting a beam from the first beam and one or more other beams based on the estimated respective received power and / or reception quality.

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 relates to a double-beam tracking support and a driving device thereof, and relates to the field of photovoltaic power generation systems. The invention relates to a multi-column transmission device which comprises a plurality of supporting stand columns, a plurality of transmission speed reducing mechanisms correspondingly arranged on the tops of the supporting stand columns, a support beam arranged on one sides of the transmission speed reducing mechanisms, inter-column transmission shafts correspondingly arranged between the adjacent transmission speed reducing mechanisms and used for transmitting power, a first C-shaped main beam and a second C-shaped main beam, wherein the first C-shaped main beam and the second C-shaped main beam are correspondingly arranged on the two sides of the support beam. The upper flange plates of the C-shaped main beam I and the C-shaped main beam II can be provided with photovoltaic module plates, and the C-shaped main beam I and the C-shaped main beam II realize east-west rotary motion under the driving action of a transmission speed reducing mechanism. By optimizing the structural design of the double-beam tracking bracket and the transmission mechanism of the driving device, the material utilization rate and the structural stability of the photovoltaic tracking bracket are improved, and the system complexity and the cost are reduced.

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.

To allow beam tracking for a mobile communication device with high accuracy using an O-RAN.SOLUTION: A system constituted by an O-RAN (Open Radio Access network) includes a control device including an acquisition unit that acquires movement information including actually measured position information measured by a mobile communication device every first time via first wireless communication that can be connected in a wide area, an estimation unit that performs an estimation process to estimate an estimated position of the mobile communication device after a second time shorter than the first time has elapsed using the actually measured position information and road information, a determination unit that determines a beam radiation pattern according to the estimated position, and a control unit that controls to emit a beam in the determined beam radiation pattern after the second time has elapsed, and also includes a radiation device that emits a beam to the mobile communication device in accordance with the control of the control device.SELECTED DRAWING: Figure 3

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.