This page is updated frequently with new F Antenna-related patent applications.
|| List of recent F Antenna-related patents
|Base station, mobile station, reference signal transmission method, and channel quality measurement method|
A base station that communicates with a mobile station by using a plurality of antenna ports includes a mapping information communication unit configured to generate mapping of reference signals for measuring channel state information of the antenna ports by combining, within a resource block, mappings of reference signals for measuring the channel state information, the mappings being defined for a predetermined number or less of the antenna ports, and configured to communicate information indicating the generated mapping to the mobile station; a multiplexer configured to multiplex the reference signals for measuring the channel state information in one or more resource elements in the resource block in accordance with the generated mapping; and a transmitter configured to transmit the reference signals for measuring the channel state information.. .
Ntt Docomo, Inc.
|Channel state information transmission/reception use in wireless communication system|
A method and an apparatus for transmitting/receiving channel state information for use in multi-antenna system are provided. A signal communication method of a base station having a plurality of antennas in a wireless communication system includes determining antenna ports of first and second directions based on directions of the plurality of antennas, allocating channel measurement resources for the respective antenna ports to a terminal, transmitting a feedback configuration to the terminal according to the channel measurement resources, and receiving feedback information from the terminal based on the channel measurement resource and the feedback configuration.
Samsung Electronics Co., Ltd.
|Impedance transformer for antenna multiplexing|
A system for matching impedance of antennas includes a first switch for receiving signals that includes a first power amplifier, a first low noise amplifier coupled to the first power amplifier and a first antenna coupled to both the first power amplifier and the first low noise amplifier. The first switch is configured to match the impedance of the first antenna with the impedance of the first low noise amplifier.
An array antenna includes: a feed line provided on a first surface of a substrate; a plurality of antenna elements that are provided on the first surface at predetermined gap along the feed line and that are electromagnetically coupled with the feed line; and a conductor plate that is provided on a second surface of the substrate different from the first surface and that is ground for the feed line and the plurality of antenna elements, the plurality of antenna elements including a first antenna element having a shape that resonates at a first frequency and a second antenna element having a shape that resonates at a second frequency different from the first frequency.. .
|Node for high-rise building coverage|
An antenna arrangement with two horizontal and two vertical array antennas. A first horizontal antenna port and a second vertical antenna port are connected to a first polarization.
Telefonaktiebolaget Lm Ericsson (publ)
|Antenna device and signal processing method|
An antenna device includes a plurality of antenna elements respectively configured to receive incident waves coming from an object, a modulating unit respectively configured to modulates a first received signal of the incident waves output from the antenna elements into a second received signal, the second received signals having a plurality of different frequencies and phases corresponding to polarization directions of the received incident waves, a synthesizing unit configured to synthesize the plurality of second received signals and generates a synthetic signal, a signal processing unit, configured to perform predetermined signal processing on the synthetic signal, and an extracting unit configured to extract third received signals for each frequency and each phase from the synthetic signal on which has been performed the predetermined signal processing.. .
Nissan Motor Co., Ltd.
|Multiple-input multiple-output (mimo) antenna|
A multiple input multiple output (mimo) antenna is provided. The mimo antenna may include, but is not limited to, a printed circuit board having a plurality of edges and a ground layer including, but not limited to a plurality of antenna element mounting locations, at least one of the plurality of antenna element mounting locations being arranged on a first side of the printed circuit board and at least one of the plurality of antenna element mounting locations being arranged on a second side of the printed circuit board, a plurality of slots, each of the plurality of slots extending a predetermined distance from an edge of the printed circuit board, and at least one ground stub, the at least one ground stub comprising an extension of the ground layer of a predetermined electrical length at a predetermined angle relative to the edge of the printed circuit board..
Galtronics Corporation Ltd.
|Antenna radome with removeably connected electronics module|
In one embodiment, an antenna assembly in a cellular network has a radome that houses a plurality of antenna arrays and an electronics module. The electronics module has a weatherproof housing that encloses electronics for processing signals received by and transmitted from a first of the antenna arrays.
Commscope Technologies Llc
|Method and grouping antennas in multiple-input multiple-output antenna system|
Disclosed are a method and an apparatus for grouping antennas in a multiple-input multiple-output antenna system. The method of the present invention comprises the steps of: measuring a channel vector for a plurality of antennas of a base station; grouping channel coefficients of the channel vector in accordance with a plurality of antenna grouping patterns and determining grouped codebook vectors corresponding to the grouped channel coefficients; selecting one of the antenna grouping patterns using the grouped codebook vectors for the antenna grouping patterns; and feeding back, to the base station, a pattern index indicating the selected antenna grouping pattern and a codebook index indicating the grouped codebook vector corresponding to the selected antenna grouping pattern..
Korea University Research And Business Foundation
|Device for forming wireless high-frequency signal path and controlling same|
The present invention relates to a device for forming a wireless high-frequency signal path, comprising: a plurality of output ends respectively connected so as to correspond to a plurality of antenna arrays; a plurality of input ends respectively connected so as to correspond to a plurality of amplifiers; a switching module for forming a path for variably connecting each of the plurality of input ends to one selected from the plurality of output ends according to a switching control signal; and a control unit for receiving an external command and outputting a switching control signal for controlling a switching operation of the switching module according to the external command.. .
Omnidirectional antennas, antenna systems and methods of making omnidirectional antennas
Exemplary embodiments are disclosed of antennas, antenna systems, and methods of making antennas. In an exemplary embodiment, an antenna generally includes at least two feeds and at least one open side defined between the at least two feeds.
Laird Technologies, Inc.
Combined antenna apertures allowing simultaneous multiple antenna functionality
An antenna apparatus and method for use of the same are disclosed herein. In one embodiment, the antenna comprises a single physical antenna aperture having at least two spatially interleaved antenna arrays of antenna elements, the antenna arrays being operable independently and simultaneously at distinct frequency bands..
Method and apparatus to control the gain of a millimeter wave phased array system
The systems and method described herein provide efficient wireless communication in a millimeter wave (mmw) phased array system. The system may comprise a plurality of antenna elements, each of the plurality of antenna elements coupled to a transceiver and transceiver having at least one power amplifier.
Hf antenna for rotor wing aerial vehicles
A hf antenna for rotor wing aerial vehicles which includes a plurality of circularly configured arcs, where each arc has a first end and a second end, the first end is attached to one of the blades, the second end is attached to another blade that is adjacent to the blade attached to the first end, such that each blade of the vehicle is attached to one first end of one of the arcs and one second end of another arc.. .
United States Of America As Represented By The Secretary Of The Navy
Led lighting device and system containing antenna, and related configuring method
Antenna-containing led lighting devices, systems and configuring methods are provided. An exemplary led lighting device includes an led light source component unit and an led driving circuit and power supply unit configured to drive the led light source component unit and to power the led lighting device.
Sengled Optoelectonics Co., Ltd.
Synchronization method, mobile station apparatus and base station apparatus
The present invention is designed to allow a communication system employing massive-mimo to optimize its performance. A mobile station apparatus transmits a synchronization signal by controlling the transmission direction of the transmitting beam for the synchronization signal by means of beamforming using a plurality of antenna elements, and has a synchronization signal processing section (62) that generates the synchronization signal including identification information of the mobile station apparatus, and changes the beamforming weight for the synchronization signal at predetermined time intervals, and a transmitting section (63) that transmits the synchronization signals generated in accordance with each beamforming weight on the uplink..
Ntt Docomo, Inc.
Systems and methods for wireless communication in frequency-limited, client-dense environments
A system for managing the wireless transmission of data using a configured or fixed frequency, such as the 60 ghz spectrum, within a client-dense environment such as an aircraft. The system includes access points (“zaps”) that control a plurality of antennas according to a time-slotted broadcast schedule such that the transmissions from the antennas do not interfere with each other..
Systems And Software Enterprises, Llc
Dynamic partitioning of modular phased array architectures for multiple uses
Various embodiments are generally directed to techniques to dynamically configure a modular antenna array (maa) for multiple independent uses. An maa may include a plurality of antenna modules, each of the antenna modules comprising an array of antenna elements coupled to a radio frequency (rf) beamforming circuit, the rf beamforming circuit to adjust phase shifts associated with the antenna elements to generate an antenna beam associated with the antenna module, a dynamic configuration unit to receive an indication of a usage for a one of the plurality of antenna modules, and a main beamforming unit coupled to the dynamic configuration unit and each of the antenna modules, the main beamforming unit to generate signal adjustments relative to the one of the plurality of antenna modules to control the antenna beam associated with the one of the plurality of antenna modules based at least in part on the usage..
Fine and coarse parameter beam forming
Methods, systems and apparatuses for selecting parameters of a beam are disclosed. One method includes selecting, by a network controller of a wireless network, coarse beam parameters of each of a plurality of antenna arrays of a first node or a second node of the wireless network based on one or more static parameters of the first node and the second node, selecting, by at least one of the first node or the second node of the wireless network, fine beam parameters of each of the plurality of antenna arrays of the first node or the second node based on perturbations to dynamic parameters of at least one wireless link between the first node and the second node, and forming at least one beam by at least one of the first node or the second node using the coarse beam parameters and the fine beam parameters..
System and massive mimo communication
A system and method of adjusting an equivalent channel for a downlink in a multiple-antenna communication system is disclosed herein. The system includes at least one user device and a base station having a plurality of analog rf chains, each analog rf chain having a plurality of antennas.
Micro-route selection beam forming
Methods, systems and apparatuses for selecting beamforming parameters based on selected micro-routes are disclosed. One method includes characterizing at least one wireless link between a first node and a second node of a wireless network, including identifying a plurality of micro-routes between the first node and the second node, selecting a micro-route from the plurality of micro-routes for each of a plurality of antenna arrays of at least one of the first node or the second node, yielding a plurality of selected micro-routes, selecting beam forming parameters for each of the plurality of antenna arrays based on the plurality of selected micro-routes, and communicating at least one stream between the first node and the second node through the plurality of selected micro-routes of the plurality of antenna arrays..
Methods for reducing near-field radiation and specific absorption rate (sar) values in communications devices
A method is provided introducing a phase offset between signals applied to antenna ports of an antenna having multiple antenna elements, such that a first signal applied to one of the antenna ports operatively coupled to one of the antenna elements has a different phase than a second signal applied to another one of antenna ports operatively coupled to another one of the antenna elements to obtain an antenna pattern control. A reduced power is used that is lower than the power used in a non-pattern control operation of the antenna such that a wireless link performance criteria is met with equipment at a far-field point using the reduced power compared to the non-pattern control operation, thereby reducing near field radiation..
An adapter (10) comprises a single adapter output (45) connectable to at least one antenna line device (100a-c), at least two base station inputs (30a-c), the at least two base station inputs (30a-c) being individually connectable to a base station (110a-c) or a primary control device (460c) and at least one microcontroller (40a-c), the microcontroller (40a-c) being connected between one of the base station inputs (30a-c) and the single adapter output (45). An antenna system (5) comprising such an adapter (10) and a plurality of antenna line devices (100a-c) connected to the single adapter output (45) of the adapter is also disclosed.
Mimo antenna and mimo antenna arrangement structure
A mimo antenna includes a plurality of antenna elements respectively including a plurality of conductive elements that are connected to different feeding points from each other; and one or more base members each being directly or indirectly provided at an upper edge portion of a windshield of a vehicle, the conductive elements being provided at either of the base members, wherein d/w, where “w” is a width of an open portion of a window frame at which the windshield is provided and “d” is a minimum distance between the conductive elements of the antenna elements in a direction parallel to the direction of “w”, is less than or equal to 0.35.. .
Asahi Glass Company, Limited
Methods and evaluating radiated performance of mimo wireless devices in three dimensions
According to some embodiments, a system is provided for simulating a cluster of reflections. The system includes an array of antenna elements distributed in space over a solid angle having an angular spread.
Array antenna implementing predetermined beam width using predetermined number of antenna elements
The present invention relates to an array antenna apparatus, comprising: a first antenna element arranged in the center of the outermost concentric circle having a radius determined according to the beam width of a beam to transmit; and antenna element sets arranged on the circumference of each of concentric circles arranged to have a predetermined interval within the outermost concentric circle, wherein each of the antenna element sets comprises an odd number of second antenna elements, and only one antenna element exists on a straight line corresponding to the radius.. .
Korea Advanced Institute Of Science And Technology
Shark pin antenna
A shark pin antenna is proposed, the shark pin antenna including a base, a circuit board mounted on the base, a 3g/4g antenna mounted at a first end of the circuit board and configured to receive a signal of 3g/4g band signal, an am/fm antenna mounted at a second end of the circuit board and configured to receive am/fm band signal, v2x antennas mounted at a lateral surface of the am/fm antenna, each being spaced apart at a predetermined distance and configured to realize a v2x (vehicle to everything) communication, and a plurality of antennas positioned between the 3g/4g antenna and the am/fm antenna to receive a band signal higher than the am/fm band signal, but lower than the 3g/4g band signal.. .
Lg Innotek Co., Ltd.
A device and a antenna alignment
The present invention relates to a node in a wireless communication network. The node comprises an antenna arrangement which in turn comprises an array antenna.
Telefonaktiebolaget Lm Ericsson (publ)
Reconfigurable antenna with cluster of radiating pixelates
Similar to cell based electronics systems that employ a sea of small unit cells in large scale arrays, such as thin film display monitors or semiconductor memories, an antenna array employs micron to centimeter size antenna pixelate cells that are integrated to form the plate of an antenna. Each row and column of cells in the antenna array may be accessed by digital logic and the rf transmission/reception state of the switchable cell changed.
Electronic device with near-field antenna operating through display
An electronic device may have a display. A display cover layer and a transparent inner display member may overlap a display pixel layer.
Extracorporeal terminal, capsule endoscope system, capsule-endoscope control method and program
An extracorporeal terminal includes a wireless communication unit including a plurality of antenna elements, and configured to transmit and receive a signal. With a capsule endoscope, a first memory configured to store a position database showing relationships between coordinates and the frame rate, a position estimation unit configured to estimate a position of the capsule endoscope using a signal level of the signal received by the wireless communication unit, and a frame rate-setting unit configured to set the frame rate corresponding to the coordinates when a distance between a position shown by the coordinates included in the position database retained in the first memory and at position of the capsule endoscope estimated by the position estimation unit is less than a distance threshold that is preset.
Method and device for reporting channel state information in wireless communication system
A method and device for reporting channel state information in a wireless communication system is disclosed. The method for reporting channel state information (csi) by means of a terminal in a wireless communication system according to an embodiment of the present invention includes: measuring a first reference signal transmitted from a first subset of antenna ports from among a plurality of antenna ports in a base station; measuring a second reference signal transmitted from a second subset of antenna ports from among the plurality of antenna ports; and reporting the csi to the base station based on at least one of the measurement of the first reference signal and the measurement of the second reference signal, wherein at least one of the plurality of antenna ports is included in both the first subset and the second subset..
Sogang University Research Foundation
Synchronization signal transmitting method and base station apparatus
In order to make full use of the performance of a massive-mimo-applied communication system, provided is a base station apparatus for controlling a transmission direction of a transmission beam for a synchronization signal used in cell search by beamforming using a plurality of antenna elements. The base station apparatus has a synchronization signal processing section (62) that generates the synchronization signal including information to identify the transmission beam for the synchronization signal and changes a beamforming weight for the synchronization signal at every given time interval; and a transmission section (64) that transmits the synchronization signal generated with the beamforming weight in downlink..
Ntt Docomo, Inc.
Communication method, base station, and user equipment
A communication method, a base station, and user equipment are provided. The method includes: forming m beams by using a manner of antenna weighting, where m is a positive integer greater than 1; determining an uplink receive power of each beam according to an uplink sounding signal of ue; selecting n beams from the m beams according to the uplink receive power of each beam, where n is a positive integer, and n<m; and sending pilot signals to the ue by using the n beams.
Huawei Technologies Co., Ltd.
Method and reduced feedback fd-mimo
A method for operating a base station includes receiving an uplink signal from a user equipment (ue), wherein the uplink signal includes a precoding matrix indicator (pmi) associated with a first precoder index of a codebook determined by a first and a second precoder indices, and a channel quality indicator (cqi). The method includes applying an open-loop diversity operation to at least one data stream including quadrature amplitude modulation (qam) symbols to generate n_b signal streams and applying a precoding matrix to the n_b signal streams to generate a larger number of n_tx data streams to be transmitted via a plurality of antennas..
Samsung Electronics Co., Ltd.
Wireless communication device capable of adjusting at least one antenna to improve efficiency of other coexisting antenna(s) and related wireless communication method
A wireless communication device is used for performing wireless communication via at least one of a plurality of antennas. The antennas include a first antenna and a second antenna.
Tunable antenna with slot-based parasitic element
Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures.
Radar sensor for motor vehicles
A radar sensor for vehicles, including a group antenna, having a linear array of antenna elements, a feed unit for feeding transmission signals having a settable phase relationship into the antenna elements, a control unit controlling the feed unit, and an evaluation device evaluating received radar echoes and angle-resolving locating of objects. The group antenna includes at least two non-interleaved subgroups, the feed unit supplies in-phase transmission signals to the elements, while the transmission signals for the various subgroups have a settable phase difference, the control unit periodically changes the settable phase difference so that the transmission signals have a base phase difference in one measuring cycle and a phase difference in another measuring cycle which differs by a fixed absolute value from the base difference.
Robert Bosch Gmbh
Method and transmitting reference signal in multiple antenna supporting wireless communication system
The present invention discloses a method and an apparatus for transmitting a reference signal in a wireless communication system. More specifically, the method comprises configuring a first antenna group on the basis of a plurality of antenna elements configured by a horizontal domain antenna element and a vertical domain antenna element; transmitting a configuration with regard to a specific sub frame to first terminals through a first antenna group; receiving a sounding reference signal (srs) through the specific sub frame from the first terminals; selecting at least one second terminal among the first terminals on the basis of the sounding reference signal; and transmitting a channel state information-reference signal (csi-rs) with respect to the at least one second terminal, wherein the specific sub frame is characterized in that at least a part of a source area is configured by a multicast broadcast single frequency network (mbsfn) sub frame..
Lg Electronics Inc.
Geographically isolated antennas
Briefly, in accordance with one or more embodiments, a base transceiver station having a first set of antennas and a second set of antennas geographically separated from the first set of antennas transmits a reference signal to a first device, and receives feedback from the first device. The feedback represents information that can be used to construct a weight adjustment vector.
System and 3d imaging using a moving multiple-input multiple-output (mimo) linear antenna array
A method generates a three-dimensional (3d) scene image of a scene using a mimo array including a set of antenna by first selecting a subsets of the antennas as transmit antennas and receive antennas. Radio frequency (rf) signal are transmitted into the scene using the subset of transmit antennas while the mimo array is moving at a varying velocity.
Mitsubishi Electric Research Laboratories, Inc.
Dual-band inverted-f antenna with multiple wave traps for wireless electronic devices
A wireless electronic device includes an inverted-f antenna (ifa) having an ifa exciting element, an ifa feed, and a grounding pin. The ifa exciting element is configured to resonate at two different resonant frequencies, when excited by a signal received through the ifa feed.
Systems and methods for controlling the transmission and reception of information signals at intended directions through an antenna array
Systems and methods are disclosed herein for controlling communication of information signals at an intended direction that involves (i) obtaining a set of changing weighting solutions for an antenna array having two or more antenna array elements, each of the weighting solutions defining a set of array weights that generates an imposed error as a function of direction in one or more of amplitude, phase, frequency and polarization of an information signal transmitted or received by the antenna array, wherein the imposed error for all of the changing weighting solutions is substantially the same at an intended direction and varies at unintended directions; (ii) selecting one of the changing weighting solutions; (iii) applying the set of array weights of the selected changing weighting solution to a set of antenna signals corresponding to the information signal transmitted or received through the antenna array elements; and (iv) selecting and applying each of the changing weighting solutions to the set of antenna signals according to a selection change rate, so that the information signal is recoverable at the intended direction and unrecoverable at all unintended directions.. .
Altamira Technologies Corporation
Closely coupled re-radiator compound loop antenna structure
Source radio frequency energy (rf) is coupled wirelessly (no physical contact) between two compound loop (cpl) antennas or one cpl and another type of antenna across a variety of barriers such as plastic, human tissues, glass, and air. The compound coupling interface created between the two antennas is highly efficient in transferring the rf energy from a source antenna to a destination including a cpl antenna.
Plasma processing apparatus and plasma processing method
A plasma processing apparatus includes a processing chamber including a dielectric window; a coil shaped rf antenna provided outside the dielectric window; a substrate supporting unit, provided in the processing chamber, for mounting thereon a target substrate to be processed; a processing gas supply unit for supplying a desired processing gas to the processing chamber to perform a desired plasma process on the target substrate; and an rf power supply unit for supplying an rf power to the rf antenna to generate a plasma of the processing gas by an inductive coupling in the processing chamber. The apparatus further includes a floating coil electrically floated and arranged at a position outside the processing chamber where the floating coil is to be coupled with the rf antenna by an electromagnetic induction; and a capacitor provided in a loop of the floating coil..
Tokyo Electron Limited
Radio base station, user terminal and radio communication method
The present invention is designed so that, in a communication system to employ massive mimo, data signals to which beamforming is applied can be transmitted adequately. A radio base station transmits a data signal to a user terminal by applying beamforming using a plurality of antenna elements, and has a determining section that determines the type of a weight to apply to the data signal for beamforming, a generating section that generates a reference signal which the user terminal uses in channel estimation, a weight control section that controls weights to apply to transmitting signals, and a transmitting section that transmits the data signal and the reference signal, and the weight control section determines whether or not to apply a weight to the reference signal based on the type of the weight..
Ntt Docomo, Inc.
Antenna device and driving antenna ports of an antenna array
The disclosure relates to an antenna device, configured to assign antenna beams to radio cells, the antenna device comprising: a set of radio transceivers coupleable to a set of antenna ports of an antenna array, each radio transceiver being configured to drive a respective antenna port of the antenna array when each radio transceiver is coupled to the respective antenna port, wherein the set of radio transceivers is configured to drive the antenna ports to generate at least two antenna beams, wherein each radio transceiver contributes to the generation of each antenna beam.. .
Huawei Technologies Co., Ltd.
Communication unit, integrated circuit and generating a plurality of sectored beams
A communication unit comprises a plurality of antenna element feeds (203, 205) for coupling to a plurality of antenna elements of an antenna array, where each antenna element feed comprises at least one coupler; and a plurality of transmitters operably coupled to the plurality of antenna element feeds. At least one transmitter of the plurality of transmitters comprises: an input for receiving a first signal and at least one second signal; beamformer logic arranged to apply independent beamform weights (rcfbf1, rcfbf2) on the first signal and the at least one second signal of the transmitter respectively, wherein each of the independent beamform weights is allocated on a per sector basis; and a signal combiner arranged to combine the first signal and the second signal to produce a combined signal, such as that the combined signal supports a plurality of sectored beams..
Analog Devices Global
Spatial null creation using massive mimo (m-mimo)
In a base station having a massive multiple input multiple output (m-mimo) antenna array, the availability of the m-mimo antenna array is exploited to manage the interference caused by the base station to neighboring cells. In one embodiment, the large number of antenna elements of the m-mimo antenna array are used to create precise transmit and/or receive spatial nulls at specific user equipments (ues) being served by a neighboring cell and/or in select areas of the neighboring cell.
Electronic device with shared antenna structures and balun
An electronic device may be provided with shared antenna structures that can be used to form both a near-field-communications antenna such as a loop antenna and a non-near-field communications antenna such as an inverted-f antenna. The antenna structures may include conductive structures such as metal traces on printed circuits or other dielectric substrates, internal metal housing structures, or other conductive electronic device housing structures.
Slot antenna built into a vehicle body panel
Slot antennas built into metallic body panels utilize the vehicle body itself as an antenna radiator. Building the slot antennas directly into the metallic body panels converts the vehicle body from functioning as an rf shield into an rf antenna, which significantly improves mobile communication reception for a wide range of rf communication devices.
Gm Global Technology Operations Llc
Capacitive proximity sensor configuration including an antenna ground plane
Embodiments of a capacitive sensor configuration for proximity detection by a playback device are provided. A example playback device includes a capacitive proximity sensor and a radio frequency (rf) antenna.
Integrated photonic devices based on waveguides patterned with optical antenna arrays
Integrated photonic devices including an optical waveguide patterned with an array of antennas are provided. The small footprint, lightweight, and broadband integrated photonic devices provided can be configured into waveguide mode converters, polarization rotators, perfect absorbers, photodetectors, optical power diodes, nonlinear optical elements, heat-assisted magnetic recorders, optical isolators, and optical circulators..
The Trustees Of Columbia University In The City Of New York
Spatial cognitive radar
A spatial cognitive radar system, method of assembling the radar, and method of selecting antenna elements in the radar are described. The system includes a phased array of a plurality of antenna elements and a plurality of receiver channels, the plurality of receiver channels being a value greater than one and less than a number of the plurality of antenna elements.
Gm Global Technology Operations Llc
Architecture for cascaded signal selection and signal concentration and/or reduction of digital received data by decimation and channel preselection
A magnetic resonance tomography system includes a plurality of mrt plugs for connection of antenna elements, respectively, of one of a plurality of local coils. Due to at least one analog switch matrix, antenna elements respectively connected to fewer than all of the mrt plugs may be connected in an analog fashion to receive signal processing elements of one of a plurality of receive signal processing element blocks respectively having a plurality of receive signal processing elements.
Radio frequency antenna assembly for hydrocarbon resource recovery including adjustable shorting plug and related methods
A radio frequency (rf) antenna assembly configured to be positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery may include an rf transmission line and an rf antenna coupled to the rf transmission line. The rf antenna assembly may also include an adjustable balun that may include a tubular balun housing surrounding the rf transmission line and defining a space therebetween.
Antenna subset and directional channel access in a shared radio frequency spectrum band
Techniques are provided for accessing a shared radio frequency spectrum band by selecting a subset antennas associated with a successful access procedure for accessing the shared radio frequency spectrum. In some examples, a wireless communication device, such as a network node, may perform a listen before talk (lbt) procedure for each of two or more subsets of antennas associated with the network node, and only those subsets of antennas that pass the lbt procedure are used for transmissions during the associated time period, while other antennas are idle, or used for transmissions on another radio frequency spectrum band during the associated time period.
Radio base station, user terminal and reference signal transmission method
The present invention is designed to improve the received quality of reference signals in user terminals, in small cells that are placed to overlap a macro cell. The reference signal transmission method according to the present invention is a reference signal transmission method in a radio base station that forms a small cell, which is placed to overlap a macro cell, and that has a plurality of antenna ports, and includes the steps of generating a plurality of reference signals that vary per antenna port, and in a reference signal transmission period in which beamforming is not executed, transmitting the plurality of reference signals in a transmission bandwidth that is narrower than in a second transmission period in which beamforming is executed, the reference signals of each antenna port are spread in at least one of the time direction and the frequency direction and transmitted..
Power saving techniques for embms
Power saving techniques for evolved multimedia broadcast multicast service (embms) services are described. In one embodiment, for example, user equipment (ue) may comprise at least one radio frequency (rf) transceiver, at least one rf antenna, and logic, at least a portion of which is in hardware, the logic to receive a system information message comprising multicast/broadcast over single frequency network (mbsfn) area information, determine an mbsfn area identifier (id) of an mbsfn area based on the mbsfn area information, and determine whether to decode a multicast control channel (mcch) for the mbsfn area based on the mbsfn area id and on mbsfn area mapping information.
Patient monitoring involving receiving multiple asynchronous data streams with antenna diversity
A radio frequency (rf) receiving apparatus (10) includes a first and second omnidirectional rf antennas (20) at different spatial locations or orientations, a first and second rf receivers (24), each connected to a corresponding one of the first and second omnidirectional rf antennas (20), and a controller (32) connected to the first and second rf receivers (24). The first and second rf receivers (24) receive and demodulate rf signals of at least first and second carrier frequencies to recover data packets from at least a first device which transmits data packets on the first carrier frequency rf signal and a second device which transmits data packets on the second carrier frequency rf signal.
Compact networking device for remote stations
A tower-mounted networking device facilitates deploying a remote station without having to build a custom station aside a radio tower. The networking device's chassis comprises a mounting bracket, which includes a curved contour for mounting the networking device on the radio tower.
Transmit antenna selection
A set of antennas is selected from a plurality of antennas for transmitting data streams on a plurality of subcarriers based on channel state information of a communications channel between the plurality of antennas and a plurality of receive antennas at a client device, a number of the data streams to be transmitted, and a channel coherence time of the communications channel. A size of the set is equal to or greater than the number of data streams..
Method and system for assigning antennas in dense array
A method and system optimally selecting antenna elements based on the current availability of antenna elements and the current usage of other antenna elements within a two or three dimensional array. The present system and method pertain to an approach to allow the maximal usage of each antenna element while simultaneously reducing the coupling between antenna elements to improve the signal strength in each antenna element by ensuring that antenna elements in the same incident path are not tuned to the same frequency or physically or electrically near elements tuned to identical or adjacent frequencies..
Communication unit and antenna array calibration
A method for calibrating an antenna array coupled to a plurality of transmitters via a plurality of couplers and a plurality of antenna element feeds is described. The method comprises, at a communication unit: selecting and coupling at least one coupler to a calibration receiver in a feedback path in the communication unit; scaling at least one first signal by at least one first beamform weight; applying the scaled at least one first signal to a first transmitter of the plurality of transmitters and routing the scaled at least one first signal via the selected at least one coupler to the calibration receiver; generating a reference signal by selecting and scaling the at least one first signal by at least one second beamform weight substantially equal to the at least one first beamform weight; comparing the at least one first signal scaled with the at least one first beamform weight with the at least one first signal reference signal scaled by the at least one second beamform weight to determine at least one first parameter result; storing the at least one first parameter result of the comparison associated with the first transmitter; repeating for subsequent transmitters the steps of selecting and coupling a further coupler, scaling, applying at least one further signal to a further transmitter of the plurality of transmitters, generating a further reference signal, comparing and storing at least one further parameter result until the plurality of couplers have been selected; and determining at least one calibration correction coefficient from a plurality of parameter results for applying to at least one second signal input to at least one transmitter of the plurality of transmitters coupled to the antenna array to substantially equalise a transfer function of a plurality of transmit paths to antenna element feeds for the at least one second signal having beamform weights applied thereto..
Method, apparatus and system for electrical downtilt adjustment in a multiple input multiple output system
Machine-readable media, methods, apparatus and system for electrical downtilt adjustment in a multiple input multiple output system are disclosed. In some embodiments, an apparatus may comprise an electrical downtilt module to determine an electrical downtilt angle for an antenna port selected from a number of antenna ports based on information from an user equipment (ue); and a codebook module to select a codeword corresponding to the antenna port from a codebook and calculate a weight of an antenna array of the enb through inputting the electronic downtilt angle into the codeword, wherein the codebook has a first number of codewords, each of the codewords having a second number of elements to represent the weight of the antenna array, and wherein each of the codewords corresponds to each of the antenna ports and each of the elements corresponds to each antenna of the antenna array..
Wireless charging device and system for wearable device
A wireless charging device includes a plurality of antennas, a plurality of ac/dc converters, and a controller. The antennas receive power, are located at different positions of an electronic device, and are oriented in different directions.
An antenna module including a plurality of antennas, a cable connecting the plurality of antennas, and a fixing member configured to maintain a shape of the cable, wherein the cable has a zigzag shape.. .
An antenna apparatus includes a plurality of antenna elements. The plurality of antenna elements may be spaced apart from one another, and a direction of current flowing in each of the antenna elements may be set to be oriented outwardly from substantially the center of the plurality of antenna elements in a length direction of each of the antenna elements or inwardly toward the center in the length direction of each of the plurality of antenna elements..
Manually beam steered phased array
A beam steered phased array antenna and system for including the same are described. In one embodiment, the antenna apparatus comprises an array of a plurality of antenna elements, the array having a single moveable feeding point coupled to the antenna elements, where the moveable feeding point is movable with respect to the antenna elements in the array..
Multimode antenna structure
One or more embodiments are directed to a multimode antenna structure for transmitting and receiving electromagnetic signals in a communications device. The communications device includes circuitry for processing signals communicated to and from the antenna structure.
Antenna and wireless communication apparatus
Provided is an antenna capable of maintaining excellent antenna characteristics even in a case where the antenna cannot be disposed at a desired position or a case where a plurality of antennas are disposed in a single apparatus. This antenna is characterized by being provided with: a printed wiring board; an antenna circuit which is disposed in a predetermined end portion of the printed wiring board and sends and receives radio waves of wavelength λ; and a series resonance circuit disposed at a position in the predetermined end portion of the printed wiring board, the position being separated from the antenna circuit by a distance depending on the wavelength λ.
Antenna with integrated condensation control system
In an example embodiment, an airborne radio frequency (rf) antenna device can comprise: a radiating portion; a waveguide portion connected to the radiating portion; a desiccant airflow channel; and an internal air volume located within the rf antenna device and associated with the desiccant airflow channel. The desiccant airflow channel can be integral with the rf antenna device.
Method and operating system in cellular mobile communication system
A base station including a plurality of antenna assemblies in a mobile communication system divides an ultra wideband into a plurality of unit-bands (ubs), forms a plurality of beams by the plurality of antenna assemblies, groups a plurality of beam component carriers distinguished by the plurality of ubs into beam component carriers that belong to the same ub to operate the grouped beam component carriers as a plurality of cells, and configures one cell among the plurality of cells as a cell for movement of a terminal.. .
Base station apparatus and calibration method
When using a plurality of antenna elements, calibration is performed appropriately, while preventing processing time from increasing. A base station apparatus has a plurality of antenna elements; a combiner configured to receive and combine downlink transmission signals, each including a reference signal, from monitor ports provided corresponding to the antenna elements; a channel estimator configured to estimate a channel of the reference signal for each of the antenna elements; and a calibration controller configured to calculate a calibration correction value to be applied to each of the antenna elements based upon channel estimation result..
Mobile communication device
Embodiments described herein relate a mobile communication device and techniques to suppress deterioration of antenna characteristics. The mobile device includes metallic members that are disposed around, or in portions of a casing of the mobile device.
Method for performing multiple access in wireless ofdm cellular systems over multipath wireless channels considering both space and frequency domains, base station and computer programs thereof
The base station 100 comprises a large number of antennas 103 in the form of a two-dimensional array and transmits a given number of signals to a number of users 106, so that each one receives its intended signal (or set of intended signals) without interference to/from the other users 106. The base station 100 includes a scheduler in space-time-frequency dimensions 101 as well as an orthogonal space-frequency processing technique 102 for addressing the users 106.
Wireless distributed antenna mimo
The present disclosure relates to system applications of multicore optical fibers. One embodiment relates to a base transceiver station for a wireless telecommunication system comprising a plurality of antenna units arranged in a mimo configuration and adapted for transmission and/or reception of radio-frequency signals, an optical transmitter in the form of an electro-optic conversion unit for each of said plurality of antenna units, each electro-optic conversion unit adapted for converting an rf signal into an optical signal, a plurality of a single core optical fibers for guiding the optical signals, and at least one first space division multiplexing (sdm) unit adapted for multiplexing said single core optical fibers into respective individual cores of a multicore fiber, or into respective individual modes of a multimode fiber..
Channel state information feedback schemes for fd-mimo
A method of operating a user equipment (ue). The method includes receiving a configuration message comprising a reporting type of channel state information (csi).
Method and node in a wireless communication network
Radio network node and method in a radio network node, for wireless communication with a user equipment in a wireless communication system in antenna streams, wherein the radio network node comprises a plurality of antenna elements, forming a multiple antenna array which is configured for massive mimo transmission. The method comprises beamforming a signal to be transmitted to the user equipment by splitting and phase shifting said signal; detecting a peak of power of one beamformed signal, exceeding a threshold value; manipulating said signal until the peak of power of the signal is lower than said threshold value; and transmitting said signal, to be received by the user equipment..
Apparatus and methods for antenna sharing in a mobile device
Disclosed herein are apparatus and methods for antenna sharing in a mobile device. In certain configurations, a mobile device includes a switching circuit that controls access of a plurality of transceivers to a plurality of antennas.
Rf energy harvester
Disclosed herein is an antenna apparatus for use in harvesting ambient radio frequency, rf, energy. The apparatus comprises one or more rf antenna components arranged to receive rf energy for producing electricity.
System and method to interact with elements of a language using physical objects
The present invention provides a system and method to enable a user to learn a language using physical objects in a highly interactive and free play format. The system uses an interactive surface without a visual electronic display with an array of embedded capacitance sensors and rf antennas operatively linked to a computer system, and a plurality of physical objects, each embedded with an rfid tag and a capacitance tab for activating the capacitance sensor, and each marked with a printed language element such as a letter of the alphabet.
Radio over fiber antenna extender high speed trains
Radio-over-fiber (rof) antenna extender systems and methods are disclosed for high speed train communications which utilize cellular networks as backhauls to avoid the expensive capital expenditure involved in providing broadband internet services in high speed trains. Employing rof technology, on-roof antennas are deployed in strategic configurations to address the drawbacks of utilizing cellar networks as backhauls.
New Jersey Institute Of Technology
Reference signal for a coordinated multi-point network implementation
A system and method of receiving a channel state information reference signal (csi-rs) is presented. At a user equipment, a first csi-rs transmitted from a base station is received.
Transmission method, transmitter apparatus, reception method and receiver apparatus
Transmission quality is improved in an environment in which direct waves dominate in a transmission method for transmitting a plurality of modulated signals from a plurality of antennas at the same time. All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ.
Panasonic Intellectual Property Corporation Of America
Detecting and processing weak signals using an array of antennas
A method for detecting and processing signals may include receiving a weak radio frequency (rf) signal by an array of antennas. The method may also include digitally sampling the weak rf signal from each antenna of the array of antennas and storing the digital samples of the weak rf signal from each antenna.
The Boeing Company
Interference management for a distributed spatial network
A communication network comprising of at least one remote base station; and a plurality of antenna ports connected to the at least one remote base station; wherein the remote base station controls the plurality of antenna ports. The remote base station is configured for defining mutually exclusive entry and exit points for the antenna ports in at least one of time; or frequency.
Indian Institute Of Technology Hyderabad
User device and operating method therefor
An electronic device according to one embodiment of the present disclosure may include a plurality of antennas for transmitting and receiving radio waves, at least one sensor for sensing a physical quantity or physical changes, a sensor hub for outputting a control signal in response to an output from the at least one sensor, and a communication module for controlling wireless communication using the plurality of antennas in response to the control signal. Various other exemplary embodiments are possible..
Samsung Electronics Co., Ltd.
Apparatus and multiple antenna systems
An apparatus including a plurality of radio ports for interconnection with radio circuits, a plurality of antenna ports for interconnection with antennas, interconnection circuitry configured to enable interconnection of each of one or more radio ports to different non-overlapping sets of p antenna ports, where p is controllable and p=2p, p being a whole number; and at least one control port configured to receive a control signal for determining p.. .
Nokia Technologies Oy
Method for performing antenna shuffling using partial antenna array based beamforming in wireless communication system, and apparatus therefor
A method for receiving a signal from a base station by a user equipment, using massive antenna array based beamforming of the base station in a wireless communication system is disclosed. The method includes receiving, from the base station, antenna shuffling information corresponding to a preferred antenna port set among a plurality of antenna ports included in the massive antenna array, measuring channel state information according to the antenna shuffling information and reporting the channel state information to the base station, and receiving, from the base station, a beamformed signal using the preferred antenna port set based on the channel state information, wherein the antenna shuffling information includes at least one of information about a start index of antenna ports included in the preferred antenna port set and information about a direction to which antenna port indexes are allocated..
Lg Electronics Inc.
A method of beamforming a transmission from an antenna array having rows of antenna elements and columns of antenna elements may include determining a first precoding matrix associated with a first orientation. The method may further include determining a second precoding matrix associated with a second orientation.
Communication control apparatus, communication control method and terminal apparatus
[solution] provided is a communication control apparatus including: an acquisition unit configured to acquire a set of weight coefficients for forming a beam aimed at a terminal apparatus, for each of two or more antenna groups each including a portion of a plurality of antenna elements included in a directional antenna capable of forming a three-dimensional beam; and a determination unit configured to determine a set of weight coefficients for the plurality of antenna elements for forming a three-dimensional beam aimed at the terminal apparatus, on the basis of the sets of the weight coefficients for the two or more antenna groups.. .
Base station apparatus, terminal apparatus, wireless communication system, and integrated circuit
Provided are a base station apparatus, a terminal apparatus, a wireless communication system, and an integrated circuit in which the terminal apparatus is able to appropriately combine signals received by a plurality of receive antennas in the wireless communication system for performing nonlinear mu-mimo transmission. The base station apparatus of the invention has a plurality of antennas, is able to apply nonlinear precoding to data signals addressed to a plurality of terminal apparatuses, and spatially multiplexes and transmit the data signals, and based on the data signals and channel information between the base station apparatus and the terminal apparatuses, searches for a perturbation vector to be added to the data signals, and further calculates a covariance matrix of the signals obtained by adding the perturbation vector to the data signals.
Sharp Kabushiki Kaisha