359 results about "Active antenna" patented technology

Systems and methods for User Equipment (UE)-assisted precoder selection are provided. In one embodiment, a method implemented in a base station for transmitting data to a UE comprises transmitting, to the UE, Channel State Information Reference Signal (CSI-RS) on two sets of CSI-RS resources; receiving, from the UE, two sets of CSI; estimating a first channel capacity for the codebook-based precoder based on the first set of CSI and a second channel capacity for the non-codebook-based precoder based on the second set of CSI; selecting one precoder from the codebook-based precoder and the non-codebook-based precoder based on the first channel capacity and the second channel capacity; and performing data transmission to the UE using the selected precoder. Embodiments of the proposed solution enable selecting a best precoder from the codebook-based precoder and the non-codebook-based precoder.

The invention provides an active antenna unit which can be applied to communication equipment with a transmitting-receiving common antenna. The active antenna unit comprises N radio frequency antenna links and L self-interference cancellers, N is an integer greater than 1, and L is an integer less than or equal to N, for example, L is equal to N. Each radio frequency antenna link comprises a transmitting channel, a receiving channel, a feed network and an antenna subarray. The N radio frequency antenna links meet at least one of the following conditions: the routing of the feed networks of at least two radio frequency antenna links is different; or, the N antenna sub-arrays are provided with isolation assemblies which are used for isolating signals among the N antenna sub-arrays. In addition, a self-interference canceller is connected between the transmitting channel and the receiving channel of at least one link and used for cancelling signals from the transmitting channel in the receiving channel of the link where the self-interference canceller is located. Therefore, the self-interference cancellers do not need to be connected between the transmitting channels and the receiving channels of different links in the N links, the number of the self-interference cancellers can be reduced, and the circuit complexity is reduced.

The embodiment of the invention provides a feed network, an antenna device, an active antenna unit and communication equipment, and the feed network controls the phase state of a phase shifter through light, does not need to use a control line, enables the feed network comprising the phase shifter to adopt an inverted microstrip structure, and reduces the insertion loss between a radio frequency channel and an antenna.

Certain aspects of the present disclosure provide a method for wireless communications at a user equipment (UE). The UE transmits capability information corresponding to one or more antenna modules of the UE to a network entity. The capability information may include a quantity of boresight directions associated with each antenna module of the one or more antenna modules. The UE may receive from the network entity, after the capability information is transmitted, an indication of a beam switch and / or an antenna module switch. The beam switch indicates a switch from an active beam to a target beam. The antenna module switch indicates a switch from an active antenna module to a target antenna module.

Certain aspects of the present disclosure provide a method for wireless communications at a user equipment (UE). The UE transmits capability information corresponding to one or more antenna modules of the UE to a network entity. The capability information may include a quantity of boresight directions associated with each antenna module of the one or more antenna modules. The UE may receive from the network entity, after the capability information is transmitted, an indication of a beam switch and / or an antenna module switch. The beam switch indicates a switch from an active beam to a target beam. The antenna module switch indicates a switch from an active antenna module to a target antenna module.

A transceiver device, including a multi-antenna feeder array and a reconfigurable intelligent surface (RIS), where the multi-antenna feeder array includes a plurality of active antennas configured to transmit electromagnetic radiation based on a data stream pre-coded with a pre-coder. The RIS includes a plurality of passive antennas, each passive antenna is configured to receive the electromagnetic radiation from the multi-antenna feeder array and to re-transmit the received electromagnetic radiation with a respective adjustable phase shift. The transmission from the plurality of active antennas of the multi-antenna feeder array to the plurality of passive antennas of the RIS is defined by a transmission matrix, where the multi-antenna feeder array is configured to generate the pre-coder based on one or more generalized eigenvectors of the transmission matrix.

Transceiver integrated circuit suitable for distributed placement across an active antenna unit. ICs with two serial data ports configured to transmit and receive aggregated signal-port IQ data packets with adjacent ICs within a subarray of ICs, or to a beamformer processor. A packet header inspection circuit may identify aggregated signal-port IQ data packets for local processing, and identify received aggregated signal-port IQ data packets for processing by another device.

A user equipment (UE) device may reside in a state of dual connectivity with a master cell group (MCG) and a secondary cell group (SCG), wherein the radio access technologies of the MCG and the SCG are different. While in the dual connectivity state, the UE device may transition to a mode of reduced activity (e.g., processing and / or RF activity) relative to the secondary cell group (SCG) in order to save power, e.g., when traffic flow via the SCG is below a threshold, or when scheduling activity on the SCG is low. Various mechanisms may be employed to reduce activity, e.g., mechanisms such as reduction of beam monitoring, deactivation of secondary cells of the SCG, reduction of number of active antenna elements, employment of longer periods for periodic measurement and reporting processes, etc.

The invention relates to an active antenna comprising a single-turn loop, for example an antenna for radio communications and / or electromagnetic field measurements. An active antenna according to the invention comprises: a first element (11), the first element being an electrical conductor; a second element (12), the second element being an electrical conductor; a third element (3), the third element being an electrical conductor, a first end of the third element being directly coupled to a first end of the first element and to a first end of the second element; and a differential amplifier having a positive input terminal coupled to a second end of the first element, a negative input terminal coupled to a second end of the second element, and a reference node coupled to a second end of the third element, an output port of the active antenna being coupled to an output of the differential amplifier.Figure for abstract: Figure 4.

A base station antenna includes a first antenna having first and second spaced-apart columns of first radiating elements therein, which are configured to operate within a first frequency band. An active antenna system (AAS) is provided, which is configured to operate within a second, typically higher, frequency band. The AAS includes a second antenna within a space between the first and second columns of first radiating elements. These first radiating elements may include tilted feed stalks which support higher integration by enabling the first radiating elements to overhang at least a portion of the second antenna.

Reducing azimuth-elevation correlation in an antenna array structure is provided. Herein, an antenna array structure is configured to include multiple active antenna elements and a single passive antenna element. In an embodiment, the active antenna elements are each coupled to a respective antenna port and the passive antenna element is isolated from all of the antenna ports. In other words, the passive antenna element acts as a dummy antenna element that can absorb electromagnetic energy of a radio frequency (RF) signal but does not provide the received RF signal to any of the antenna ports. The presence of the passive antenna element makes it possible to reduce an azimuth-elevation correlation between each orthogonal pair of active antenna elements in the antenna array structure to thereby improve accuracy of phase-difference-of-arrival (PDoA) measurements and location determination in an azimuth-elevation coordinate system.

A communication system according to the present disclosure includes: a base station apparatus including a plurality of Active Antenna Systems (AASs); and a management apparatus configured to be able to communicate with each of the plurality of AASs, in which the management apparatus is configured to notify each of the plurality of AASs of a common time and an Identification (ID) that is unique to each of the plurality of respective AASs, and each of the AASs is configured to perform downlink and uplink calibration within a predetermined period from a predetermined time that is defined by the common time and is periodically set in accordance with the ID allocated to each of the AASs.

Controlling carrier shutdown in a multicarrier cellular network includes a coverage cell in the multicarrier cellular network obtaining information about an active antenna unit (AAU) configuration of one or more capacity cells paired with the coverage cell. The coverage cell transmits information about a coverage cell load and a carrier borrowing capability of an AAU of the coverage cell to a paired capacity cell. And each paired capacity cell determines whether the carrier borrowing of the coverage cell meets the carrier turn-off entry condition of the capacity cell according to the carrier borrowing capability. The OFF carrier borrowing determines a capacity cell that satisfies the carrier OFF entry condition, while if the coverage cell determines that a carrier borrowing condition is satisfied, the coverage cell borrows a carrier of an OFF capacity cell using the AAU configuration of the capacity cell to activate a borrowed carrier.

A base station antenna includes a first antenna having first and second spaced-apart columns of first radiating elements therein, which are configured to operate within a first frequency band. An active antenna system (AAS) is provided, which is configured to operate within a second, typically higher, frequency band. The AAS includes a second antenna within a space between the first and second columns of first radiating elements. These first radiating elements may include tilted feed stalks which support higher integration by enabling the first radiating elements to overhang at least a portion of the second antenna.

The invention provides a virtual external field test system, which comprises an electromagnetic shielding cabinet and a plurality of compact fields in the electromagnetic shielding cabinet, each compact field is formed by a reflecting surface and a feed source, and the plurality of compact fields can move along an arc-shaped guide rail. Therefore, electromagnetic waves in different directions and at different angles are simulated to test the performance of the to-be-tested signal transceiver assembly. In addition, a wave-absorbing baffle plate is arranged between adjacent compact fields, and a wave-absorbing baffle plate is also arranged on the side surface of the feed source for preventing signal interference. According to the scheme, the miniaturization of the virtual external field test system is realized through the compact field in a scene that the number of the millimeter wave active antenna arrays is continuously increased, the occupied area of the virtual external field test system is effectively reduced, and the cost is saved.

The invention provides a communication networking method and device, and belongs to the technical field of communication, and the method comprises the steps that in a configuration stage, a baseband processing unit configures working modes of an active antenna unit according to network requirements, and the working modes comprise a communication mode and a sensing mode. In the application stage, the baseband processing unit indicates the transmitting module to transmit signals, and the receiving module receives the signals and transmits the signals back to the baseband processing unit for signal processing. And the baseband processing unit is also responsible for performing mode switching between the active antenna units so as to realize dynamic adjustment of communication and sensing functions. Through flexible configuration and dynamic switching of the working modes of the active antenna units, efficient cooperation of communication and sensing functions is realized, and the utilization rate of network resources and the overall performance of the system are remarkably improved.

The invention relates to the technical field of navigation signal detection, and discloses a small portable navigation signal comprehensive detection system and method.The system comprises a building block type mobile antenna support, backpack type comprehensive detection equipment and a navigation equipment site evaluation system, the system is composed of a backpack type comprehensive detection host and an individual soldier handheld terminal, and rapid opening and comprehensive detection of navigation signals are achieved. The backpack comprehensive detection host integrates a battery, a power supply module, a high-performance signal processing board, a radio frequency channel and a medium-wave active antenna, adopts a high-performance battery and power supply management scheme and an advanced AC7Z020 core board for signal processing, and ensures high-precision and high-sensitivity detection. The system is further integrated with an electronic compass module to achieve a direction finding function, real-time data feedback and evaluation are achieved through Bluetooth communication between the individual soldier handheld terminal and the host, the detection convenience and reliability are greatly improved, and the system is particularly suitable for scenes such as field environments, emergency rescue and military actions.

A GNSS active antenna with improved performance in the presence of interfering signals is described. The GNSS active antenna meets the requirements of DO-301 for Airborne GNSS antennas when in normal operation. The GNSS active antenna also generates a low elevation null steered to any azimuth angle when in an environment with an interfering signal. The null has minimal performance impacts at higher elevation angles near zenith. The GNSS active antenna includes a right-hand circular polarized microstrip antenna with a concentric vertically polarized monopole antenna. The GNSS active antenna also meets the requirements of ARINC 743 antenna outline and mounting hole pattern.

The invention provides an active antenna unit structure applied to a base station. Comprising an upper casing assembly, a lower casing assembly, and a transceiver board and an antenna assembly which are packaged between the upper casing assembly and the lower casing assembly. The upper casing assembly and the lower casing assembly are provided with heat dissipation teeth located in the packaging outer environment, the transceiving board is integrated with at least one of a transceiving chip, a power supply, a filter and a power amplifier, and at least one of the transceiving chip, the power supply, the filter and the power amplifier is in contact with the lower casing assembly and / or the upper casing assembly through a heat conduction material. Heat dissipation is carried out through the heat dissipation teeth of the lower machine shell assembly and / or the upper machine shell assembly. Compared with an active antenna unit of a traditional framework, the active antenna unit structure can reduce the influence of a thermal cascade effect on heat dissipation of a whole machine, heat of components such as a transceiver chip, a power supply, a filter and a power amplifier is conducted to the external environment more efficiently, and the whole machine is lighter under the same heat dissipation capacity.

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.

An antenna apparatus for generating or detecting an electromagnetic wave, comprises a first active antenna including a first oscillator and a first antenna, a second active antenna including a second oscillator and a second antenna, a coupling wire configured to couple the first antenna and the second antenna, a first terminal configured to accept a signal for controlling a first oscillation frequency of the first oscillator before synchronization by the coupling wire, and a second terminal configured to accept a signal for controlling, independently of the first oscillation frequency, a second oscillation frequency of the second oscillator before synchronization by the coupling wire.

The invention provides a radome for a base station antenna and the base station antenna. The radome comprises a radome body and a back cover, the antenna housing body forms a first accommodating space with an opening and is used for accommodating a passive antenna unit of a base station antenna; the back cover seals the opening and forms a second accommodating space for accommodating at least part of active antenna units of the base station antenna; at least one of the antenna housing body and the back housing is provided with at least one first periodic pattern conductive layer with electromagnetic wave reflection performance at the parts corresponding to the two sides of the active antenna unit.

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.

The invention relates to the field of communication, and provides a connector and an active antenna unit. The connector comprises an inner conductor and an outer conductor, and the inner conductor is used for being coupled between the signal transmitting piece and the signal receiving piece; the outer conductor sleeves the periphery of the inner conductor, the outer conductor comprises an outer cylinder and a shielding ring connected to one end of the outer cylinder, one end, far away from the shielding ring, of the outer cylinder is fixedly connected with the signal transmitting piece, and the shielding ring can deform under stress and elastically abuts against the signal receiving piece. The outer conductor of the connector can directly and elastically abut against the signal receiving piece through the shielding ring so as to rapidly, reliably and tightly abut against the signal receiving piece, and signals are reliably prevented from leaking between the outer conductor and the signal receiving piece. Therefore, the structure of the connector can be simplified and optimized, the assembly process between the connector and the signal receiving piece can be simplified, the assembly convenience and the assembly efficiency between the connector and the signal receiving piece can be improved, and the signal shielding effect based on the shielding ring between the outer conductor of the connector and the signal receiving piece can be optimized.

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 present application discloses a solution for controlling an active antenna module in a cellular communication system. According to one aspect, a method includes: at a first time interval, causing a first antenna module and a second antenna module to provide overlapping coverage areas respectively within a service area of ​​an access node of the cellular communication system, wherein the first antenna module and the second antenna module are antenna modules of the access node, and each of the first antenna module and the second antenna module provides corresponding coverage within the service area of ​​the overlapping coverage area, and the corresponding coverage is independent of each other; and at a second time interval, causing the first antenna module and the second antenna module to provide non-overlapping coverage areas respectively.

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.

An embodiment of the present application provides a method, apparatus, electronic device, and storage medium for extracting wireless channel characteristics, which relate to the field of communication technologies. The method includes: if it is determined according to preset configuration information that the target network is in the feature extraction period, determining the current feature extraction mode and the execution unit corresponding to the feature extraction mode; generating an extraction instruction corresponding to the feature extraction mode and sending the extraction instruction to the execution unit; the execution unit includes an active antenna unit AAU. Compared with the existing channel acquisition instrument, the embodiment of the present application can collect more comprehensive data, and is also more suitable for data extraction of large-scale networks. On the other hand, compared with the channel acquisition instrument, it is almost impossible to obtain the wireless channel characteristics in the vertical dimension, and it can obtain all channel characteristics including vertical and horizontal dimensions. On the other hand, it can reduce the instrument procurement costs of operators and equipment manufacturers and reduce the complexity of channel characteristic acquisition work.

Transceiver integrated circuit suitable for distributed placement across an active antenna unit. ICs with two serial data ports configured to transmit and receive aggregated signal-port IQ data packets with adjacent ICs within a subarray of ICs, or to a beamformer processor. A packet header inspection circuit may identify aggregated signal-port IQ data packets for local processing, and identify received aggregated signal-port IQ data packets for processing by another device.

The present disclosure proposes a link calibration method, device and storage medium, which are applied to a millimeter wave active antenna unit (AAU). The method includes: determining an intermediate frequency link, the intermediate frequency link corresponds to an intermediate frequency band, and calibrating the intermediate frequency link to obtain an intermediate frequency reference signal, and then obtaining a calibration signal to be tested, the calibration signal to be tested is associated with a target link corresponding to the millimeter wave active antenna unit AAU, the target link corresponds to a target frequency band, and determining a calibration compensation value corresponding to the calibration signal to be tested based on the intermediate frequency reference signal, and the calibration compensation value is used to calibrate the target link. As a result, the convenience of millimeter wave active antenna unit AAU link calibration can be effectively improved, the calibration efficiency of millimeter wave active antenna unit AAU link can be effectively improved, the calibration accuracy of millimeter wave active antenna unit AAU link can be effectively improved, and the construction cost of the millimeter wave active antenna unit AAU link calibration system can be effectively reduced, which is suitable for large-scale deployment of production lines.