107 results about "Active antenna" patented technology

Base station antennas include an externally accessible active antenna module releasably coupled to a target mounting structure behind a rear of a base station antenna housing using active antenna module mounting brackets that attach to the active antenna module, project rearward of the active antenna module and are configured to directly attach to a target mounting structure such as a pole. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

The invention provides a base station awakening method, a base station dormancy method, a base station awakening device, a base station dormancy device, network equipment and a medium, and relates to the technical field of wireless communication. The base station wake-up method is applied to a first BBU, and comprises the following steps: receiving a first wake-up signal sent by a second BBU through a transmission link with the second BBU; according to the first wake-up signal, controlling a module in a sleep state of a target sleep level in the first BBU to enter a wake-up state; and sending a second wake-up signal to a first active antenna unit (AAU), the second wake-up signal being used for indicating a module in a sleep state of the target sleep level in the first AAU to enter a wake-up state, and the first AAU belonging to the first base station. According to the scheme of the invention, through the transmission link between the first BBU and the second BBU, the first BBU can receive the wake-up signal of the second BBU in the dormant state, thereby waking up the first BBU and the first AAU.

The application relates to a W-band digital active antenna array, which comprises a millimeter wave subarray plate, a bottom plate and a signal processing unit; the millimeter wave subarray plate comprises a multi-channel patch antenna array and an active circuit, the active circuit comprises a W-band TR chip and an up-down conversion chip; the bottom plate comprises a low-frequency connector, a secondary power supply and corresponding local oscillation and intermediate frequency interfaces; a radio frequency input signal is input through the interface of the bottom plate, is transferred to the millimeter wave subarray plate, is input into the conversion chip to realize up-down conversion, finally is input through the TR chip and the antenna array to realize W-band signal transceiving; the low-frequency interface of the bottom plate is connected with the signal processing unit, and control and power supply signals generated by the signal processing unit are connected to the millimeter wave subarray plate after passing through the bottom plate. The application designs a miniaturized W-band digital active array. Meanwhile, an extensible active subarray design concept is adopted, the combination of millimeter wave subarrays with different numbers is adopted, and the requirement of the number of array channels in different scenes is met.

The invention provides a large phased array device and a communication method. The device comprises a base band unit (BBU); the active antenna unit AAU comprises an AAU master controller and an AAU subarray; the BBU and the AAU master control are integrated on a single PCB (Printed Circuit Board); the BBU is in communication connection with the AAU master control through a PCB (Printed Circuit Board) microstrip line, and a communication interface between the BBU and the AAU master control is a CPRI (Common Public Radio Interface) or an eCPRI (Enhanced Common Public Radio Interface); the AAU master control and the AAU sub-arrays are in communication connection through a radio frequency coaxial cable. The base band unit BBU and the AAU master control are integrated on the single PCB, a base band and radio frequency physical layer fusion framework is achieved, the bandwidth upper limit is greatly increased, and a multi-beam large-bandwidth large-scale array is supported; the neutron irradiation resistance of the coaxial cable is far higher than that of optical fibers, the interface is simplified, and the reliability is multiplied; a low-cost commercial device can be selected as a chip high-speed interface of the AAU subarray.

The utility model belongs to the technical field of antennas, and provides a transmission module and a radio frequency active antenna, a main board end capacitance isolation unit is connected between a double-layer radio frequency coaxial line and a main board signal end, and the main board end capacitance isolation unit couples a grounding signal and a radio frequency signal into the double-layer radio frequency coaxial line. The antenna end capacitance isolation unit is connected between the double-layer radio frequency coaxial line and an antenna signal end, the antenna end capacitance isolation unit separates a grounding signal and a radio frequency signal from the double-layer radio frequency coaxial line, and the mainboard end inductance isolation unit couples two control signals with opposite polarities into the double-layer radio frequency coaxial line. Two control signals with opposite polarities are separated from the double-layer radio frequency coaxial line by the antenna end inductance isolation unit, so that transmission of radio frequency signals between a mainboard signal end and an antenna signal end is realized, and the problem that different signal transmission needs to be performed through a plurality of transmission lines for signal transmission between an existing active antenna and a radio frequency mainboard is solved. And the wiring is scattered.

This invention discloses a low-altitude sensing system and its trajectory fusion method. The low-altitude sensing system includes a low-altitude management platform and a sensing base station system. The sensing base station system includes a baseband unit and an active antenna unit. The active antenna unit detects low-altitude flying targets and generates raw trajectory data containing the longitude, latitude, altitude, speed, and trajectory identifier of the detected targets. The baseband unit performs real-time correlation, deduplication, and trajectory fusion processing based on a multi-level cache queue on the raw trajectory data to obtain fused trajectory data, which is then reported to the low-altitude management platform. The low-altitude management platform visualizes the trajectory data reported by the baseband unit. This invention solves the problem of unstable and easily changing target trajectory identifiers (TrackId) under asynchronous sensing data from multiple AAUs. By using weighted election and a multi-level caching mechanism, this invention outputs a continuous, stable, and reliable unified trajectory, improving the accuracy and robustness of low-altitude target tracking.

A user equipment includes a plurality of antenna panels, at least one processor, and at least one memory including computer program code. The at least one memory and the computer program code are configured, together with the at least one processor, to cause the user equipment to: identify a potential change in the active antenna panel at the user equipment from a first antenna panel among the plurality of antenna panels to a second antenna panel among the plurality of antenna panels; and send at least one early panel handover detection message indicating the potential change in the active antenna panel to a base station serving the user equipment.

1. The name of the design product: active module of antenna. 2. The use of the design product: the product as a whole is used for active antenna receiving and sending signals, and locally for electronic module of antenna. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1. 5. Other circumstances that need to be explained: this application is a partial design patent application, and the part not covered by blue is the partial protection.

Systems and methods are described for connecting with LEO satellites while reducing emissions toward GEO satellite communications. A system to implement the instant techniques may include a system comprised of a user communications equipment and a LEO constellation. The user equipment (“UE”) may comprise a communications modem and an active antenna unit with a transmit and receive beamformer. In further implementations, the UE may include additional receive only beamformers. The LEO constellation can have a regenerative payload or bent pipe, and can include orbits at different altitudes. Methods as described herein may include a procedure by which the user equipment and LEO satellite work together to identify candidate serving satellites, and select the one that allows to meet the power density requirements to avoid interfering with the GEO satellites.

An active antenna disclosed by the present invention comprises an antenna support, an antenna body and a tuning device, the antenna body is arranged on the antenna support, and the antenna support is provided with a plurality of tuning circuit conductive circuits. The tuning device is electrically connected with the tuning circuit conducting circuit in a surface mounting manner to form a tuning circuit and is electrically connected with the antenna body, and the tuning circuit dynamically adjusts the impedance of the active antenna. Quality detection of antenna products is facilitated, debugging development time is shortened, antenna size is reduced, and antenna efficiency is improved.

1. The name of the design product: active antenna. 2. The use of the design product: for receiving and sending signals, suitable for signal distributor or wireless microphone. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

A base station antenna comprises a reflector assembly and a first radiating element having a first feed stalk and a first radiator. A base of the first feed stalk is adjacent the reflector assembly and the first radiator is adjacent a distal end of the first feed stalk. A center of the first radiator is offset from the base of the first feed stalk in a longitudinal direction that is parallel to a longitudinal axis of the base station antenna.

Methods and apparatuses for network operation adaptation in a spatial domain in a wireless communication system. A method for a user equipment (UE) to report channel state information (CSI) includes receiving: first information related to reception of CSI reference signals (CSI-RSs) on a cell, second information related to determining a first number of CSI reports respectively associated with a first number of operation states on the cell, third information related to triggering a second number CSI reports respectively associated with a second number of operation states from the first number of operation states, and the CSI-RSs based on the first information. An operation state is associated with a configuration for active antenna ports, antenna panels, or transmission reception points. The method further includes determining, based on the second information and the CSI-RSs, the second number of CSI reports and transmitting a channel with the second number of CSI reports.

This application discloses a downlink hybrid beamforming precoding method, apparatus, and active antenna unit (AAU). The method involves: obtaining a first channel estimation matrix from the uplink signals transmitted by a terminal device using antenna units connected to multiple digital receiving channels. This achieves uplink channel estimation in a single uplink channel measurement, reducing resource consumption compared to related technologies that require multiple analog beam switching measurements. Then, the analog beamforming weights are obtained from the hybrid digital-analog precoding matrix obtained through matrix decomposition. The channel estimation for the corresponding analog beam is removed from the first channel estimation matrix to obtain a second channel estimation matrix. Beamforming is performed based on the second channel estimation matrix to obtain the digital beamforming weights. Downlink hybrid beamforming precoding is then performed on at least one hybrid digital-analog transmit channel based on the digital and analog beamforming weights, reducing complexity and achieving superior hybrid beamforming performance.

A base station antenna comprises a reflector assembly and a first radiating element having a first feed stalk and a first radiator. A base of the first feed stalk is adjacent the reflector assembly and the first radiator is adjacent a distal end of the first feed stalk. A center of the first radiator is offset from the base of the first feed stalk in a longitudinal direction that is parallel to a longitudinal axis of the base station antenna.

The utility model relates to a vehicle-mounted active antenna and system, and relates to the technical field of antennae, the vehicle-mounted active antenna comprises an antenna body, a signal processor, a gain module and a control module, a first signal end of the signal processor is used for being connected with an output end of an electronic control unit of a vehicle; a first signal end of the gain module is connected with a second signal end of the signal processor, and a second signal end of the gain module is connected with the antenna body; the input end of the control module is connected with the third signal end of the signal processor, and the gain adjustment output end of the control module is connected with the gain adjustment input end of the gain module. The control module can adjust the gain of the gain module based on the information output by the third signal end of the signal processor, so that the gain module can gain the information output by the second signal end of the signal processor based on the adjusted gain, thereby achieving the gain adjustment of the signal. Therefore, the communication quality of the antenna can be improved.

The utility model discloses an active NFC antenna structure of a smart watch, which comprises a module shell I and a module shell II, a circuit board is fixedly connected inside the module shell I, an antenna coil I is arranged at one end of the surface of the circuit board, an antenna coil II is arranged at the other end of the surface of the circuit board, one end of the antenna coil I is fixedly connected with a feeder, and the other end of the antenna coil II is fixedly connected with a power supply. One end of the outer side of the module shell II is fixedly connected with a pin; the first antenna coil and the second antenna coil of the intelligent watch are NFC signal transmitting and receiving cores, work based on the electromagnetic induction principle and can receive and radiate signals, a variable capacitor and an inductance adjustable element integrated on the circuit board can optimize antenna performance according to environmental changes, and a frame-shaped neodymium iron boron magnet achieves rapid installation and replacement of the antenna. The fixing rubber ring stabilizing module, the circuit board, the electromagnetic shielding layer and the magnetic shielding layer form a protection system, the moisture-proof layer prevents water vapor, the silica gel buffer layer buffers impact, and pins on two sides of the second module shell are connected with a watch mainboard and supply power to an antenna coil to ensure normal operation of the watch mainboard.

The invention belongs to the technical field of optical fiber wireless converged communication, and particularly relates to a bidirectional millimeter wave terahertz seamless optical fiber wireless integrated system. The system comprises an electrical / optical conversion module in a central unit / distributed unit, a downlink millimeter wave / terahertz generation module in an active antenna unit, a downlink receiving and digital signal processing module in a user side, an uplink millimeter wave / terahertz generation module in the user side, and an uplink receiving and electrical / optical conversion module in the active antenna unit. And an optical / electric conversion and digital signal processing module in the central unit / distributed unit. The all-photon up-down conversion technology is adopted on the optical fiber network side of the system, direct conversion of millimeter wave / terahertz and optical signals at the optical fiber end is achieved, and seamless integration of the millimeter wave / terahertz and the optical fiber network is achieved; the system provided by the invention has efficient two-way transmission capability, supports simultaneous transmission of an uplink and a downlink, and remarkably improves the data transmission rate.

This invention provides a LoRa system based on intelligent reflective surface beamforming and index modulation, and a LoRa physical layer enhancement method. In this system, the transmitter includes at least: N k A LoRa node equipped with a single transmit antenna and a RIS with N passive reflective elements. The RIS is used to improve the wireless propagation environment by controlling the phase of each passive reflective element to achieve beamforming, maximizing the instantaneous signal-to-noise ratio under the active antenna combination, and improving bit error rate performance; the receiver includes at least N... R A LoRa gateway with multiple receiving antennas, where multiple receiving antennas at the LoRa gateway are used for indexed modulation, activating N antennas in each symbol period. R N of the receiving antennas k By using these individual antennas as information transmission entities to carry additional information, the transmission throughput is significantly improved. The LoRa physical layer enhancement method applied to this LoRa system improves the quality of received signals by controlling the wireless propagation environment through RIS beamforming, and cleverly utilizes the IM principle of multi-receiver antenna indexing to improve spectral efficiency, thus achieving both high transmission rate and high reliability.

Embodiments of the present application provide an active antenna unit (AAU), a communication method, and a communication device. The active antenna unit comprises M first intermediate radio frequency links, N second intermediate radio frequency links, and an antenna array, where N is less than M. The operating power consumption of the N second intermediate radio frequency links is less than the operating power consumption of the M first intermediate radio frequency links. The M first intermediate radio frequency links are connected to the antenna array by means of a first multi / full connection network, and the N second intermediate radio frequency links are connected to the antenna array or an antenna subarray of the antenna array by means of a second multi / full connection network. Signal reception or transmission is performed by means of the N second intermediate radio frequency links, providing a technical basis for shutting down the M first intermediate radio frequency links, thereby achieving deeper energy saving and consumption reduction of the AAU.

The utility model relates to an antenna gain switching circuit for a wireless audio system, an antenna and the wireless audio system, a passive channel and an active gain channel of the antenna gain switching circuit can be alternatively connected, so that the antenna can be connected through the passive channel under the condition that an antenna interface (namely a second interface) is not fed, and the antenna gain switching circuit can be used for switching the antenna. As a passive antenna, under the condition that the antenna interface can provide a feed signal, the antenna is connected through the active gain channel to become an active antenna, so that the problem that the antenna cannot be compatible with active and passive scenes during product use is solved.

The embodiment of the invention provides a control method of a base station antenna. The control method comprises the following steps: determining an activated antenna sub-panel of a terminal according to an uplink signal of the terminal, starting the activated antenna sub-panel of the terminal, and turning off an inactivated antenna sub-panel of the terminal. According to the method and the device, the problem that extra power consumption of the digital-analog hybrid base station cannot be reduced in the related technology is solved, the number of antennas where the sub-panels are located used during terminal scheduling is reduced, and the rapid and performance-lossless base station energy-saving effect is achieved.

Methods, systems, and devices for wireless communications are described. A UE may receive a set of reference signals from a network entity in accordance with a resource configuration. The set of reference signals may be received via non-full-duplex communication resources. Based on measuring the set of reference signals, the UE may transmit one or more channel state information (CSI) reports to the network entity in accordance with a first set of antenna ports and a second set of antenna ports. The first set of antenna ports may be selected by the UE based at least in part on the resource configuration, and the second set of antenna ports may be active antenna ports in full-duplex communication resources. The one or more CSI reports may include information associated with the first set of antenna ports.

The invention discloses a rocket-borne large-spacing ultra-wideband conformal phased-array antenna, and belongs to the technical field of phased-array antennas. The antenna comprises a rocket body conformal metal carrier, a metasurface layer, an antenna layer, a parasitic layer, a metal floor and a fixing structure, wherein the antenna layer is formed by periodically arranging dual-polarization orthogonal active antenna units, vertical polarization units are linearly arranged along the axial direction, and horizontal polarization units are conformally bent along the cylindrical surface side of a rocket body; the parasitic layer is composed of passive parasitic units which are correspondingly arranged, the passive parasitic units and the active antenna units are alternately arranged in an orthogonal grid mode, and reverse current is excited by arranging a short-circuit strip so that H-face harmful common-mode resonance can be restrained. The antenna provided by the invention realizes nine frequency doubling bandwidths in a horizontal line polarization direction and a vertical line polarization direction, and realizes + / -60-degree grating lobe-free wide-angle scanning of an azimuth plane when an array spacing is 0.7-0.9 lambda H by adopting a rocket body conformal mode.

The application discloses a kind of intelligent reflecting surface assisted spatial modulation system reflection coefficient optimization method, belong to wireless communication field, the information bits to be sent of sending end is divided into several information blocks with same length, according to each information block selects corresponding active antenna and sends specific signal;Optimize the coefficient of reflecting element on intelligent reflecting surface, maximize the Euclidean distance between different receiving signals;Maximum likelihood detection decoding is used at receiving end, and the original information bits are recovered.The application combines intelligent reflecting surface with spatial modulation scheme, reconstructs wireless channel using intelligent reflecting surface, increases the Euclidean distance between different receiving signals, improves the error performance of system, and can obtain better error performance than existing algorithm under the same condition.

Embodiments of the present disclosure provide a method and apparatus for estimating an angle of arrival of a channel Sounding Reference Signal (SRS). By means of the present disclosure, a plurality of passive antennas receive, in a time-division manner, SRSs configured at a specified comb position, then a same active antenna channel amplifies and samples the SRSs received by the plurality of passive antennas, and the amplified and sampled SRSs are segmented, and angles of arrival of the SRSs are estimated based on each segment of the SRSs.

The invention discloses a resource-shared dual-band marine navigation radar. The radar is composed of an active antenna unit driven by a servo motor to rotate, a fixed comprehensive electronic case and a terminal placed in a cabin. Wherein the active antenna unit comprises an X-band antenna, an S-band antenna, an X-band four-channel radio-frequency variable-frequency transmitting-receiving assembly, an S-band high-power variable-frequency transmitting-receiving assembly, a five-channel digital transmitting-receiving assembly, a frequency synthesizer and a DBF board. The integrated electronic case is composed of a servo system, an integrated digital processing unit and a secondary power supply, two wave band radars are integrally designed, the height measurement capability of the X wave band radar is improved, the advantages of the two wave bands can be fully utilized, the radar use cost is reduced, the radar target detection range and detection capability are improved, and the product practicability is improved.

1. The name of the design product: the back heat dissipation cover plate of the active antenna unit. 2. The use of the design product: used as a whole in the communication base station; used locally to protect the active antenna unit. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1. 5. Other circumstances that need to be explained: the design is locally protected, and the red block covered part is not a protected component.

The invention provides a V2X active integrated automobile antenna, and relates to the technical field of automobile antennas. A PCB (printed circuit board) which is arranged in the shell; a V2X antenna oscillator, a V2X module and a connector, and the V2X antenna oscillator, the V2X module and the connector are connected with the PCB to form a PCBA; the problems that in the prior art, an active V2X antenna adopts a split type design, a radio frequency cable and a shell structure not only increase cost, but also have insertion loss and bring about inconvenient arrangement are solved.