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Rf Antenna
Hydrocarbon
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F Antenna patents



      
           
This page is updated frequently with new F Antenna-related patent applications. Subscribe to the F Antenna RSS feed to automatically get the update: related F RSS feeds. RSS updates for this page: F Antenna RSS RSS


Calibration and testing device for an active antenna, particularly a nose-cone antenna of an airborne radar

Calibration and testing device for an active antenna, particularly a nose-cone antenna of an airborne radar

Antenna control

Antenna control

Antenna control

Channel sounding and estimation strategies in mimo systems

Date/App# patent app List of recent F Antenna-related patents
10/09/14
20140301493
 Method and apparatus for adaptive antenna sharing patent thumbnailMethod and apparatus for adaptive antenna sharing
A method and apparatus are disclosed for sharing antennas between modems for two or more different radio access technologies when two or more antennas may be present in a system. A method for coordination between the modem and the corresponding network element as well as the coordination between the two or more radio access technologies is provided.
10/09/14
20140300519
 Calibration and testing device for an active antenna, particularly a nose-cone antenna of an airborne radar patent thumbnailCalibration and testing device for an active antenna, particularly a nose-cone antenna of an airborne radar
A device includes a test enclosure defining a cavity forming an anechoic chamber, having a test probe placed inside the cavity. The cavity comprises an aperture against which the radiating surface of antenna is positioned.
10/02/14
20140295782
 Antenna control patent thumbnailAntenna control
Measures for fading-based control of an antenna radiation pattern. Such measures may comprise reception of at least one radio wave signal via an antenna unit, detection of fading conditions in relation to the received at least one radio wave signal, and control of an antenna radiation pattern of the antenna unit, at least in terms of antenna lobe width, on the basis of the detected fading conditions..
10/02/14
20140294111
 Channel sounding and estimation strategies in mimo systems patent thumbnailChannel sounding and estimation strategies in mimo systems
In a system having a first communication device with a first plurality of radio-frequency (rf) chains coupled to a first plurality of antennas and a second communication device with a second plurality of rf chains coupled to a second plurality of antennas, the second communication device receives consecutive training packets that were transmitted by the first communication device, the consecutive training packets having been produced at the first communication device by a power level rule to the first plurality of rf chains. The second communication device determines respective channel measurements corresponding to the consecutive training packets based on the power level rule, and selects a transmit parameter based on the respective channel measurements, the transmit parameter to be used by the first communication device when transmitting to the second communication device.
10/02/14
20140294106
 Implementing mimo in mmwave wireless communication systems patent thumbnailImplementing mimo in mmwave wireless communication systems
A system and method are provided to increase data rates available in mmwave wireless communication systems by adapting a multiple-input multiple-output (mimo) in a next generation mmwave wireless communication system. The system and method advantageously employ the characteristics of mmwave antenna arrays, including multiple antenna elements in each antenna array, to implement the mimo scheme by establishing multiple beamformed communication links between a mmwave transmitter and receiver.
10/02/14
20140292606
 Antenna device and radar device patent thumbnailAntenna device and radar device
An antenna device according to an embodiment includes a dielectric substrate, a housing, and an interference prevention unit. On the top surface side of the dielectric substrate, a plurality of antennas is formed, and on the bottom surface side, a ground is formed, each as a conductive thin film pattern, respectively.
10/02/14
20140292602
 Multiband antenna and mobile terminal patent thumbnailMultiband antenna and mobile terminal
The antenna has a configuration in which three inductors, i.e., first to third inductors 5 to 7 having values of inductances l1 to l3, respectively, are arranged in an inverted f-shaped antenna formed of miniaturized four antenna elements, i.e., first to fourth antenna elements 1 to 4 with an element length shorter than that of each wavelength of desired resonance frequencies are grounded at a gnd ground point 11. A power feeding unit 10 feeds electric power to the inverted f-shaped antenna through a matching circuit 9, thereby enabling a plurality of antenna operations of a two-resonance loop antenna that resonates at two resonance frequencies on a high-frequency side, an inverted f-shaped antenna that resonates at two resonance frequencies on a low-frequency side, and an inverted l-shaped antenna..
10/02/14
20140292601
 Planar antenna apparatus and method patent thumbnailPlanar antenna apparatus and method
A planar antenna apparatus is provided. The apparatus includes a first radiation unit configured to transmit a signal, a first feed unit configured to feed a current to the first radiation unit and apply the signal to be transmitted to the first radiation unit, a first radio frequency (rf) ground to which a plurality of antenna elements are grounded; and a via that connects the first radiation unit to the first rf ground, wherein all of the first radiation unit, the first feed unit, the first rf ground, and the via are disposed on a first plane, and wherein a capacitance value between the first radiation unit and the first feed unit and an inductance value determined by a length and a width of the radiation unit are set as values that cause a resonant frequency in a specific frequency band to be a preset value..
10/02/14
20140292598
 Antenna system with tuning from coupled antenna patent thumbnailAntenna system with tuning from coupled antenna
Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form a dual arm inverted-f antenna and an additional antenna such as a monopole antenna sharing a common antenna ground.
10/02/14
20140292597
 Antenna assemblies with tapered loop antenna elements patent thumbnailAntenna assemblies with tapered loop antenna elements
According to various aspects, exemplary embodiments are provided of antenna assemblies. In an exemplary embodiment, an antenna assembly generally includes one or more tapered loop antenna elements..
10/02/14
20140292591
Antennas mounted under dielectric plates
Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures.
10/02/14
20140292577
Control method of radio communication system, radio communication system, and radio communication apparatus
A communication device 1 (transceivers 400) transmits a training signal from its own transmitting antenna while performing beam scanning, and a communication device 2 (transceivers 500) receives this training signal in a state where a quasi-omni pattern is generated in its own receiving antenna. Further, the device 1 transmits a training signal in a state where a quasi-omni pattern is generated in the transmitting antenna, and the device 2 receives this training signal by the receiving antenna while performing beam scanning.
10/02/14
20140292561
Low power, space combined, phased array radar
A radar system including a plurality of mini radars may be conformable to a structure that it is attached or built into. A radar system includes a clock, a plurality of frequency modulated/continuous wave (fm/cw) radar units in signal communication with the clock and a processor in signal communication with the plurality of fm/cw radar units.
10/02/14
20140292193
Plasma apparatus and substrate-processing apparatus
Provided are a plasma generating apparatus and a substrate processing apparatus. The plasma generating apparatus includes a plurality of dielectric tubes mounted in a plurality of through-holes formed in a vacuum container, respectively; antennas comprising or divided into a first group of antennas and a second group of antennas based on their disposition symmetry in the vacuum container and mounted outside the dielectric tubes, respectively; a first rf power source to supply power to the first group of antennas; a second rf power source to supply power to the second group of antennas; and a first power distribution unit disposed between the first group of antennas and the first rf power source to distribute the power from the first rf power source to the first group of antennas..
09/25/14
20140287698
Perturbation-based dynamic measurement of antenna impedance in real-time
Devices and methods are disclosed for real-time calibration of a tunable matching network that matches the dynamic impedance of an antenna in a receiver. Processing logic is operable to solve multiple non-linear equations to determine the reflection coefficient of the antenna.
09/25/14
20140287697
Radiation redirecting elements for portable communication device
An antenna or set of antennae for a wireless device is provided by embedding the antennae into the battery case or generally the surface area of a wireless phone. The antenna connections are through the battery's connections to the wireless device.
09/25/14
20140286453
Satellite communication having distinct low priority information broadcast into adjacent sub-regions
A satellite communication system using hierarchical modulation to transmit a plurality of modulated signals to sub-regions within a region. Each modulated signal includes high priority content and low priority content.
09/25/14
20140286449
Wireless link apparatus
A wireless link apparatus includes a plurality of antennas; a signal detector configured to calculate snr based on a signal received from at least one of the plurality of antennas; and a mode selector configured to determine the number of an antenna to be used in modulation method and signal transmission by comparing the calculated snr with a preset critical value. Further, the wireless link apparatus includes a transmitter configured to modulate a signal in the modulation method determined by the mode selector and transmit the modulated signal using an antenna corresponding to the determined number of the antennas..
09/25/14
20140286267
Efficient uplink transmission of channel state information
A user equipment in a wireless communication network includes a multiplicity of antennas, from which a subset of antennas is selected using a selection scheme synchronized to the network. A set of sub-carriers is selected from a plurality of sub-carriers using a selection scheme synchronized to the network.
09/25/14
20140285373
On-board radar apparatus
An on-board radar apparatus includes an antenna unit configured by combining one of a lens and a reflector, and a plurality of antenna elements, a transmission and reception unit configured to emit a radio wave using, for at least one of transmission or reception, a partial antenna of a plurality of patterns configured by the antenna elements that are part of the plurality of antenna elements, and to receive a reflection wave obtained by reflection of the radio wave from an object, and a detection unit configured to detect the object based on the reflection wave received by the transmission and reception unit.. .
09/18/14
20140274057
System and method for wireless spectrum allocation
The invention generally relates to systems and methods for increasing effective spectrum. The invention provides wireless antennas that transmit or receive within a narrow spectrum at distances that overlap the reach of neighboring antennas and that also transmit or receive within a broader spectrum at restricted distances that do not interfere with the operation of neighboring antennas.
09/18/14
20140274011
Method and apparatus for controlling operation of a user equipment based on physical layer parameters
Techniques for controlling internal operation of a user equipment (ue) based on physical layer (phy) parameters of a wireless network are disclosed. The phy parameters may include a system bandwidth, an uplink-downlink configuration, a number of antennas, a number of carriers, etc.
09/18/14
20140273888
Implicit switch for switching between receive and transmit modes of antennas
A millimeter-wave radio frequency front-end circuit is provided. The front-end circuit comprises a millimeter-wave antenna configured to receive and transmit millimeter-wave signals; a matching network including at least a first inductor and a second inductor connected in parallel, wherein the matching network ensures impedance matching with the antenna when transmitting and receiving the millimeter wave signals; a power amplifier coupled to the antenna through the matching network; a low noise amplifier coupled to the antenna through the matching network, wherein the power amplifier is on and the low noise amplifier is off when transmitting the millimeter-wave signals, and the power amplifier is off and the low noise amplifier is on when receiving the millimeter-wave signals..
09/18/14
20140273884
Wlan diversity/mimo using shared antenna
A ue with a limited number of antennas may support multiple radio access technologies (rats). In some instances, the ue may configure a shared antenna for use by a wireless local area network (wlan) radio access technology (rat) or a cellular rat.
09/18/14
20140273874
Communications terminal, a network component, a method for transmitting a signal, and a method for providing feedback information to a communications terminal
A communications terminal may include: a plurality of antennas; and a transmitter configured to transmit a signal on an antenna of the plurality of antennas, wherein the transmitter further may be configured to transmit a delayed signal on another antenna of the plurality of antennas, and wherein the delayed signal may be generated by delaying the signal by a time delay.. .
09/18/14
20140269966
Distributed antenna system for mimo communications
A method and apparatus for determining placement of a plurality of antennas of a distributed antenna system for handling mimo signals includes, at a first location, simulating the communication of a first mimo signal by a first remote unit over an air interface in an environment and, at a second location, simulating the communication of a second mimo signal by a second remote unit over an air interface in the environment. The first and second locations are arranged within the environment to provide overlapping signal coverage of both the first mimo signal and the second mimo signal at a third location in the environment.
09/18/14
20140269964
Smart antenna array configuration for multiple-input multiple-output communications
An access point can include an array of antennas and a smart antenna selector. The smart antenna selector is configured to select a subset of antennas from the antenna array for use in multi-user multiple-input multiple-output (mu mimo) data transmissions.
09/18/14
20140269768
Methods and apparatus for increasing diversity in downlink transmissions
Certain aspects of the present disclosure provide methods and apparatus for obtaining second-order downlink spatial diversity within a wireless communication system in accordance with ieee 802.11ah, for example. One example method generally includes generating a frame comprising a preamble having at least one field, replicating at least one bit of the at least one field to form a replica of the at least one bit, transmitting the at least one bit via a first antenna, and transmitting the replica of the at least one bit via a second antenna.
09/18/14
20140269312
Base station having a plurality of antennas for the adaptive offloading of an overloaded area
Telecommunication stations having a wide coverage area are described. Some embodiments relate to a station for transmitting and/or receiving electromagnetic waves, including at least two antenna ports, each antenna port being capable of being connected to a respective group of antennas comprising one or more antennas, the respective signals being fed to the respective antenna ports being identical to one another, except for, if need be, the respective powers thereof, the station further including adjustment components capable of separately adjusting the respective power of at least one of the respective signals, and a control component capable of controlling the adjustment components according to a control signal received by the station.
09/18/14
20140266975
Antenna fabrication with three-dimensional contoured substrates
An antenna includes a dielectric substrate having a three-dimensional contour, and a set of antenna traces on the dielectric substrate. Each antenna trace spirals around the three-dimensional contour in a helical pattern.
09/18/14
20140266958
Mimo antenna assembly having reduced packaging size
A multiple input, multiple output (mimo) antenna system includes an electrically conductive, substantially planar, ground reference and a plurality of antenna assemblies electrically connected to respective antenna feeds at respective connection points. The antenna assemblies extend on a first side of the ground reference and are formed from a conductive material.
09/18/14
20140266955
Systems and methods for reconfigurable faceted reflector antennas
Systems and methods are disclosed herein for a reconfigurable faceted reflector for producing a plurality of antenna patterns. The reconfigurable reflector includes a backing structure, a plurality of adjusting mechanisms mounted to the backing structure, and a plurality of reflector facets.
09/18/14
20140266941
Electronic device with hybrid inverted-f slot antenna
An electronic device may be provided with a housing. The housing may have a periphery that is surrounded by peripheral conductive structures such as a segmented peripheral metal member.
09/18/14
20140266939
Hybrid radio frequency / inductive loop antenna
Biometric monitoring devices, including various technologies that may be implemented in such devices, are discussed herein. Additionally, techniques, systems, and apparatuses are discussed herein for providing a hybrid antenna including an rf radiator and an electrically coupled inductive loop.
09/18/14
20140266938
Electronic device having multiport antenna structures with resonating slot
Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include an inverted-f antenna resonating element and an antenna ground that form an inverted-f antenna having first and second antenna ports.
09/18/14
20140266927
Mobile wireless communications device with selective load switching for antennas and related methods
A mobile wireless communications device may include a plurality of antennas, a plurality of wireless transceivers, and signal processing circuitry. The device may further include a controller for selectively switching the signal processing circuitry to a desired one of the wireless transceivers, and for selectively switching a desired one of the antennas to the desired one of the wireless transceivers.
09/18/14
20140266925
Antenna alignment device and clamp
An antenna alignment device includes an enclosure. The enclosure has a top portion having a single radome and a bottom portion.
09/18/14
20140266923
Antenna system having two antennas and three ports
Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may form a dual arm inverted-f antenna and a monopole antenna sharing a common antenna ground.
09/18/14
20140266922
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.
09/18/14
20140266902
Single-package phased array module with interleaved sub-arrays
Embodiments of the present disclosure are directed to a single-package communications device that includes an antenna module with a plurality of independently selectable arrays of antenna elements. The antenna elements of the different arrays may send and/or receive data signals over different ranges of signal angles.
09/18/14
20140266901
Simple 2d phase-mode enabled beam-steering means
System and apparatus embodiments are provided for beam-steering. In an embodiment, an apparatus includes a first hybrid splitter/combiner connected to a 0-th phase-mode feed of an array of antenna elements, a second hybrid splitter/combiner, a first pair of variable phase shifters connecting the first hybrid splitter/combiner to the second hybrid splitter/combiner, wherein the first pair of variable phase shifters control a steering direction of a main output beam radial with respect to an array axis by adjustments of respective phases of the variable phase shifters, and wherein the array axis is perpendicular to a plane of the array, and a third variable phase shifter connecting a 1-st phase-mode feed of an array of elements to an input of the first hybrid splitter/combiner, wherein the third variable phase shifter is configured to independently control a direction of the main output beam in a direction circumferential with respect to the array axis..
09/18/14
20140266893
Adaptive transmit array for beam-steering
A method includes receiving a remote transmitter signal at an antenna array including a number of antenna elements, mixing the received signal with in-phase and quadrature-phase local oscillator (lo) signals from voltage controlled oscillators (vcos) of a coupled vco array, and configuring each phase locked loop (pll) of a number of plls to receive an in-phase output of the mixing corresponding to a vco and a quadrature-phase output of the mixing corresponding to another vco adjacent to the vco as inputs thereto. The method also includes feeding back an output of the each pll to the vco, driving the in-phase and the quadrature-phase outputs of the mixing from a transmit modulator, and transmitting, in a direction of the remote transmitter, an antenna array signal based on the driving.
09/18/14
20140266869
Method and system for random steerable sar using compressive sensing
A synthetic aperture radar image is generated by directing randomly a beam of transmitted pulses at an area using a steerable array of antennas, wherein the area is uniformly by the transmitted pulses while the array of antennas moves along a path. A sparse reconstruction procedure is applied to received signals from the area due to reflecting the transmitted pulses to generate the image corresponding to the area.
09/18/14
20140266213
Omni-inducer transmitting devices and methods
Omnidirectional electromagnetic signal inducer (omni-inducer) devices are disclosed. The omni-inducer device may include a housing, which may include a conductive base for coupling signals to ground, and an omnidirectional antenna node including a plurality of antenna coil assemblies, where the node may be disposed on or within the housing.
09/18/14
20140263993
Ion source having negatively biased extractor
An ion source for use in a radiation generator includes a sealed envelope containing an ionizable gas therein. The ion source also includes a rf antenna external to the sealed envelope, the rf antenna to transmit time-varying electromagnetic fields within the sealed envelope for producing ions from the ionizable gas.
09/18/14
20140263661
Rfid tag with reinforced structure
A rfid tag with reinforced structure is capable of reducing the chance of electrical disconnection between the silicon chip and the antenna, extending the life of the rfid tag, and improving the accuracy of reading the rfid tag. The rfid tag is provided with a base, a silicon chip, an antenna and at least one reinforced portion.
09/18/14
20140263181
Method and apparatus for generating highly repetitive pulsed plasmas
A pulsed radio frequency inductive plasma source and method are provided. The source may generate plasma at gas pressures from 1 torr to 2000 torr.
09/18/14
20140262224
Rf antenna assembly with feed structure having dielectric tube and related methods
An rf antenna assembly may be positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery. The rf antenna assembly includes first and second tubular conductors and a feed structure therebetween defining a dipole antenna to be positioned within the wellbore, and an rf transmission line extending within one of the tubular conductors.
09/18/14
20140262223
Rf antenna assembly with dielectric isolator and related methods
An rf antenna assembly is positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery. The rf antenna assembly includes first and second tubular conductors and a dielectric isolator therebetween.
09/18/14
20140262222
Rf antenna assembly with series dipole antennas and coupling structure and related methods
An rf antenna assembly is to be positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery. The rf antenna assembly includes a series of tubular dipole antennas to be positioned within the wellbore, each tubular dipole antenna having a pair of dipole elements, and an rf transmission line extending within the series of tubular dipole antennas.
09/11/14
20140256386
Mobile device for power reduction and method thereof
A device and a method for saving power in a mobile electronic device are provided. A mobile electronic device includes a plurality of antennas and a transceiver, wherein the transceiver includes a control unit configured to switch to a low power mode to operate in the low power mode, or to operate at least one of the plurality of antennas in the low power mode when a data non-transmission period occurs for a predetermined time in an active state..
09/11/14
20140256375
Detecting electromagnetic energy for alarm or log using mobile phone devices
A mobile phone is configured to employ existing antennae or other exiting input electronics to receive electromagnetic waves, for detection of energy magnitudes. The mobile phone has wireless receiver electronics to receive, through the antennae, communication signals in a plurality of different communication bands that correspond to the plurality of different frequency ranges.
09/11/14
20140254726
Antenna switching apparatus based on spatial modulation
An antenna switching apparatus based on spatial modulation includes a plurality of antennas; a control signal generator configured to generate a plurality of switching control signals; and a plurality of switches configured to switch on to apply a transmission signal to the respective antennas according to the respective switching control signals. Further, the antenna switching apparatus includes a delay analyzer configured to receive the transmission signal output from each of the plurality of switches to calculate delay information for synchronizing the switching control signals applied to the respective switches; and a delay adjuster configured to synchronize the switching control signals to apply the synchronized switching control signals to the respective switches according to the calculated delay information..
09/11/14
20140254705
Method and apparatus for transmitting feedback in a wireless communication system
Disclosed are a method and apparatus for transmitting feedback in a wireless communication system. A terminal transmits first csi (channel state information) on a first node combination to a base station, or a terminal transmits second csi on a second node combination to the base station.
09/11/14
20140254702
Method and apparaptus for transmitting and receiving channel related information
The present disclosure relates to a method and an apparatus for transmitting and receiving channel related information. A method of transmitting channel related information of a ue according to an embodiment of the present disclosure includes configuring a sub-channel corresponding to a part of a plurality of antennas of an enb; acquiring a channel estimation error (cee) and a precoding matrix indicator (pmi) corresponding to the sub-channel; and transmitting a sub-channel indicator (si) indicating the sub-channel, according to the cee and the pmi.
09/11/14
20140254507
Antenna control system and method
A wireless router applying an antenna control method includes a number of antennas and communicates with a number of terminal devices via the antennas. The antenna control method includes detecting a current bandwidth bcur of each terminal device communicating with the wireless router and determining a maximum bandwidth bmax of each of the terminal devices, computing a weighted sum sumb of the bandwidths of the terminal devices according to the detected current bandwidth bcur and the maximum bandwidth bmax of each terminal device, comparing the weighted sum sumb of the bandwidths with a first preset value, and turning on or turning off at least one of the antennas according to the compared result.
09/11/14
20140253405
Antenna of inverted f antenna type integrated into a printed card, and system
An ifa type antenna is integrated into a printed card, the printed card having a main-extension plane. The ifa type antenna has a first electrically conducting element, serving as earth plane, a second electrically conducting element, serving as radiating element of the antenna, an electrically conducting connection, serving to short-circuit the first electrically conducting element and the second electrically conducting element, and an excitation element being in electrical contact with the second electrically conducting element.
09/11/14
20140253378
Quad-sector antenna using circular polarization
Systems and methods for providing a mimo capable antenna with unique properties are provided herein. In some embodiments, a 4×4 mimo capable antenna is provided with unique properties.
09/04/14
20140248903
Facilitation of determination of antenna location
Assisted global positioning system (agps) information is retrieved from mobile devices and employed to facilitate antenna location. Measurement information, including agps information, can be received from a plurality of mobile devices dispersed over a geographical region.
09/04/14
20140247860
Codebook and codebook search
Briefly, in accordance with one or more embodiments, a codebook used to provide a precoding matrix indicator and/or channel state information comprises one or more rank-1 codewords and at least one or more rank-2 codewords exhibiting a nesting property with the rank-1 codewords, and one or more rank-2 codewords not exhibiting a nesting property with the rank-1 codewords. Further, the rank-1 codewords may include at least some discrete fourier transform (dft) vectors, and at least some vectors that are optimized for a cross polarize array of antennas if the array of antennas is cross polarized.
09/04/14
20140247797
Base station and communication control method
A communication section controls the transmission directivity of a plurality of antennas, based on a known signal transmitted from a communication terminal. A radio resource allocating section allocates a downlink radio resource and allocates an uplink radio resource.
09/04/14
20140247775
Initializing reference signal generation in wireless networks
A transmitting node uses different reference signal sequences for different types of enhanced control channels. An example method begins with generating (1410) a first reference signal sequence, from a first initialization value, and generating (1420) a second reference signal sequence, from a second initialization value.
09/04/14
20140247194
Gnss antennas
A global navigation satellite system (gnss) antenna system includes interference mitigation and multipath canceling. Multiple ports or phased arrays of antennas can be provided.


Popular terms: [SEARCH]

F Antenna topics: Rf Antenna, Hydrocarbon, Base Station, Access Point, Wireless Communication Device, Basic Service Set, Spatial Multiplexing, Communication System, Multiplexing, Downlink Control Channel, Physical Downlink Control Channel, Allocation, Distributed, Modulation, Demodulation

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