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


Method for signalling a precoding in a cooperative beamforming transmission mode

Method and system for pda-based ultrasound

Date/App# patent app List of recent Beamforming-related patents
08/28/14
20140243676
 Delta delay approach for ultrasound beamforming on an asic patent thumbnailnew patent Delta delay approach for ultrasound beamforming on an asic
Systems are disclosed for ultrasound beamforming on an application specific integrated circuit (asic). In certain embodiments, the system includes an ultrasound probe that includes a plurality of transducer elements electrically coupled to an asic.
08/28/14
20140243669
 Method and system for pda-based ultrasound patent thumbnailnew patent Method and system for pda-based ultrasound
A method and system are disclosed for a compact, inexpensive ultrasound system using an off-the--shelf personal digital assistant (pda) device interfacing to a hand-held probe assembly through a standard digital interface. The hand-held probe assembly comprises a detachable transducer head attached to a beamforming module that performs digital beamforming.
08/28/14
20140241291
 Method for signalling a precoding in a cooperative beamforming transmission mode patent thumbnailnew patent Method for signalling a precoding in a cooperative beamforming transmission mode
In a method for operating a secondary station in a network, the secondary station: controlling a transceiver configured for simultaneously receiving transmissions from a first primary station controlling a first cell and at least one second primary station controlling a second cell; selecting a first precoding matrix for the first cell out of a first set of precoding matrices for the first cell; selecting, depending on the first precoding matrix, in accordance with a precoding scheme, a subset out of a second set of precoding matrices for the second cell, the subset comprising at least one precoding matrix for the second cell; selecting a second precoding matrix for the at least one second cell out of the selected subset of precoding matrices; transmitting a first and second indicator representative of the respective first and second precoding matrix; wherein the second precoding matrix is based on the value of the first indicator, so that the amount of data used for transmitting the second indicator is less than the amount of data used for transmitting the first indicator.. .
08/28/14
20140240482
 Ultrasound imaging apparatus patent thumbnailnew patent Ultrasound imaging apparatus
Multiple elements 401 receive ultrasound signals from a test subject, and the similarity operator 404 obtains the similarity between the received signals x(n). By using the similarity c(n) between the received signals obtained by the similarity operator 404, the adaptive weight operator 407 computes the adaptive weight w(n) in association with the similarity.
08/14/14
20140226838
 Signal source separation patent thumbnailSignal source separation
In one aspect, a microphone with closely spaced elements is used to acquire multiple signals from which a signal from a desired source is separated. The signal separation approach uses a combination of direction-of-arrival information or other information determined from variation such as phase, delay, and amplitude among the acquired signals, as well as structural information for the signal from the source of interest and/or for the interfering signals.
08/14/14
20140226762
 Multi-user mimo receiver and method for receiving data units over a wideband channel patent thumbnailMulti-user mimo receiver and method for receiving data units over a wideband channel
A multiple-input multiple output (mimo) receiver includes circuitry to receive a mimo transmission through a plurality of antennas over a channel comprising two or more 20 mhz portions of bandwidth. The mimo transmission comprises a plurality of streams, each transmitted over a corresponding spatial channel and configured for reception by multiple user stations.
08/14/14
20140226520
 Method for coordinating interference in an uplink interference channel for a terminal in a wireless communication system patent thumbnailMethod for coordinating interference in an uplink interference channel for a terminal in a wireless communication system
Provided are an interference mitigation method and a base station device in a wireless communication system. The interference mitigation method to be performed by a base station comprises a step in which a serving base station measures interference from a terminal that belongs to a neighboring cell; a step of determining a beamforming vector of the neighboring cell on the basis of the measured interference; a step of transmitting the beamforming vector of the neighboring cell to a base station of the neighboring cell; and a step of feeding back, to a terminal that belongs to a serving cell, the beamforming vector of the serving base station determined on the basis of the beamforming vector of the neighboring cell..
08/14/14
20140225794
 Method and apparatus for beamforming patent thumbnailMethod and apparatus for beamforming
A wireless communication system provides an antenna apparatus for the wireless communication system. The antenna apparatus includes a base, a plurality of yagi-uda antenna modules disposed in a specific arrangement, a plurality of floating metal modules correspondingly installed in upper portions of the yagi-uda antenna modules and selectively connected to a corresponding yagi-uda module among the plurality of yagi-uda antenna modules, a switching element for selectively switching the floating metal module and the yagi-uda antenna module, and a controller for controlling the yagi-uda antenna module to comprise a directivity in a desired direction by selectively switching the switching element..
08/14/14
20140225777
 Multi-beam mimo time division duplex base station using subset of radios patent thumbnailMulti-beam mimo time division duplex base station using subset of radios
A system and method may include a plurality of transmit and receive antennas covering one sector of a cellular communication base station; a multi-beam rf beamforming matrix connected to the transmit and receive antennas; a plurality of radio circuitries connected to the multi-beam rf beamforming matrix; and a baseband module connected to the radio circuitries. The multi-beam rf beamforming matrix may be configured to generate one sector beam and two or more directional co-frequency beams pointed at user equipment (ues) within the sector, as instructed by the baseband module.
08/14/14
20140225776
 Multi-beam mimo time division duplex base station using subset of radios patent thumbnailMulti-beam mimo time division duplex base station using subset of radios
A system and method may include a plurality of transmit and receive antennas covering one sector of a cellular communication base station; a multi-beam rf beamforming matrix connected to the transmit and receive antennas; a plurality of radio circuitries connected to the multi-beam rf beamforming matrix; and a baseband module connected to the radio circuitries. The multi-beam rf beamforming matrix may be configured to generate one sector beam and two or more directional co-frequency beams pointed at user equipment (ues) within the sector, as instructed by the baseband module.
08/07/14
20140220914
Power amplifier adjustment for transmit beamforming in multi-antenna wireless systems
One or more beamsteering matrices are applied to one or more signals to be transmitted via multiple antennas. After the one or more beamsteering matrices are applied to the one or more signals, the plurality of signals is provided to a plurality of power amplifiers coupled to the multiple antennas.
08/07/14
20140219471
User voice location estimation for adjusting portable device beamforming settings
An audio device may use the audio detected at two opposite facing, front and rear omnidirectional microphones to determine the angular directional location of a user's voice while the device in speaker mode or audio command input mode. The angular directional location may be determined to be at front, side and rear locations of the device during the period of time by calculating an energy ratio of audio signals output by the front and rear microphones during the period.
08/07/14
20140219404
Implementing blind tuning in hybrid mimo rf beamforming systems
A system and a method for applying a blind tuning process to m antennas coupled via n beamformers to a multiple input multiple output (mimo) receiving system having n channels, wherein m>n, are provided herein. The method includes the following steps: periodically measuring channel fading rate at a baseband level to determine the number of antennas l out of k antennas connected to each one of the beamformers, to be combined at each one of the n beamformers; assigning the antennas to the subset l according to some criteria such as best quality indicator; repeatedly applying a tuning process to l antennas in each one of the n beamformers..
08/07/14
20140219385
Wireless communication system, wireless communication apparatus and wireless communication method
A wireless communication system which performs data transmission using spatially multiplexed streams from a first terminal including n antennas to a second terminal including m antennas (n is an integer of 2 or more and m is an integer of 1 or more) is disclosed. The system includes notifying means, training means, channel matrix estimation means, beamforming information feedback means, transmission weight matrix setting means, and beamforming means..
08/07/14
20140218236
Use of location information in multi-radio devices for mmwave beamforming
A system and method are provided for using location services available from other radios in a multi-radio system to assist a beamforming mechanism, particularly in establishing and maintaining mmwave communication link. A majority of wireless client devices for use in a mmwave communication link are equipped with multiple radios.
07/24/14
20140206406
Apparatus, system and method of establishing a wireless beamformed link
Some demonstrative embodiments include devices, systems and/or methods of establishing a wireless beamformed link. For example, an apparatus may include a wireless communication controller to control a first wireless communication device to communicate millimeter-wave (mmwave) signals with a second wireless communication device over a mmwave frequency band, the mmwave signals including signals transmitted according to a plurality of different transmit (tx) beamforming settings, the wireless communication controller is to control the first wireless communication device to communicate feedback information, which is based on the mmwave signals, over a non-mmwave frequency band, and to control the first wireless communication device to establish with the second wireless communication device a beamformed link over the mmwave frequency band, the beamformed link using a tx beamforming setting, which is determined based on the feedback information..
07/24/14
20140206304
Beamforming by sector sweeping
A first plurality of training data units are transmitted via a plurality of antennas of a first station as part of a first transmit beamforming training procedure. Subsequently, a second plurality of training data units are received via the plurality of antennas as part of second transmit beamforming procedure while the first station applies a single receive antenna configuration.
07/24/14
20140204902
Apparatus, system and method of handover of a beamformed link
Some demonstrative embodiments include devices, systems and/or methods of handover of a wireless beamformed link. For example, an apparatus may include a wireless communication unit to communicate between a wireless communication node and a mobile device via a beamformed link between the wireless communication node and the mobile device, the wireless communication unit is to determine a handover candidate for handing over the mobile device, based on at least one beamforming parameter of the beamformed link..
07/24/14
20140203966
Articluating information handling system housing wireless network antennae supporting beamforming
First and second antenna disposed in an information handling system selectively support communication through a wireless frequency using beamforming. The first or second antenna is selected for initiating communication based upon alignment with a beamforming axis for establishing beamforming with a distal wireless device.
07/17/14
20140200456
Separable beamforming for ultrasound array
Ultrasonic imaging apparatus or techniques can include obtaining at least an approximation of samples of reflected ultrasonic energy and constructing a representation of an imaging plane within the tissue region. Such apparatus or techniques can include separately determining, for respective focusing locations respective first sums of at least approximated complex samples of reflected ultrasonic energy obtained via respective first lines of transducers, and separately determining, for the specified focusing location, a second sum of at least some the respective first sums of at least approximated complex samples of reflected ultrasonic energy, the second sum corresponding to a second line of transducers in the ultrasonic transducer array.
07/17/14
20140200455
Systems and methods for inverted beamforming
Systems and methods for time-delay inverted beamforming are provided. One method includes sampling, substantially uniformly in time, a set of continuous-time element signals to form a set of sampled element signals and mapping, for each sampled element signal, one or more samples substantially equally spaced in time to one or more samples non-equally spaced in time corresponding to the respective contribution of each element signal to a continuous-time beamsum signal.
07/17/14
20140198751
Channel feedback for vertical and full-dimensional beamforming
A method implemented in a base station used in a wireless communications system where different antenna arrays are employed for transmissions to different co-scheduled users in a cell is disclosed. The method includes configuring multiple channel state information (csi) processes for a user equipment (ue), and configuring, for the ue, a plurality of non-zero power (nzp) csi reference signal (rs) resources, each of which is associated with an antenna array.
07/17/14
20140198621
Beamforming module, ultrasonic imaging apparatus using the same, beamforming method using the beamforming module, and method of controlling the ultrasonic imaging apparatus using the beamforming module
A beamforming module includes a conversion unit configured to convert an input signal to generate a converted signal using at least one conversion function, a weight calculator configured to calculate a converted signal weight as a weight for the converted signal, and a synthesizer configured to generate a result signal using the converted signal and the converted signal weight.. .
07/10/14
20140194132
Apparatus and method for transmitting feedback information using terminal accessibility in a wireless access system
The present invention relates to a method for a base station to manage resources in order to perform beamforming in a wireless access system, the method being characterized by comprising the steps of: receiving cluster information from a cluster head; and determining, on the basis of the received cluster information, terminals to be scheduled in a cluster including the cluster head, wherein the cluster information comprises location and channel gain information for the terminals belonging to the cluster including the cluster head.. .
07/10/14
20140194124
Method, apparatus, and system for controlling and measuring cell handover
The present invention discloses a method, an apparatus, and a system for controlling and measuring a cell handover, where the method for controlling a cell handover includes: acquiring terminal information; and after a random access request sent by a terminal is received, performing, according to the terminal information, beamforming for a random access response corresponding to the random access request, and sending the random access response to the terminal, where the random access response includes: configuration information of a resource required by the terminal during communication after the terminal hands over from a source cell covered by a source base station to a target cell covered by a target base station. A success rate of performing a cell handover by the terminal is improved in embodiments of the present invention..
07/10/14
20140192999
Method and apparatus for localization of an acoustic source and acoustic beamforming
Embodiments include a method and an apparatus for the localization of at least one source of an acoustic signal including: temporally sampling the acoustic signal with a plurality of microphones to obtain a (d+1)-dimensional space-time matrix representation of the acoustic signal, wherein d is the number of spatial dimensions, applying a (d+1)-dimensional fourier transform to the matrix representation, determining a first peak in a spectrum obtained based on the application of the fourier transform, and calculating the direction of arrival of the acoustic signal at at least one of the plurality of microphones based on the determined first peak.. .
07/10/14
20140192916
Communication system using a multi-antenna transmit precoder codebook
Systems using a transmit precoder codebook designed for a four-transmitter (4tx) antenna configuration are described. The 4tx antenna configuration is an attractive option for base stations in cellular network environments due to site-acquiring advantages and robust performance.
07/10/14
20140192915
Multi-user mimo-sdma for finite rate feedback systems
A multi-user mimo downlink beamforming system with limited feedback (200) is provided to enable precoding for multi-stream transmission, where a channel codeword (ui) and one or more channel quality indicator values (cqia, cqib) are computed at the user equipment (201.i) on the basis of maximizing a predetermined sinr performance metric (pi) which estimates file receive signal-to-noise-ratio (sinr) at the user equipment (201.i). The computed codeword (ui) and cqi values (or differential values related thereto) are quantized and fed back to help the base station (210) which applies a correction to the appropriate cqi value in the course of designing the transmit beamforming vectors w and determining the appropriate modulation and coding level to be used for downlink data transmission..
07/10/14
20140192914
Method, device and system for setting a weight feedback granularity
Provided in the embodiments of the present invention are a method, a device and a system for setting a weight feedback granularity, relating to communication technologies, which solve the problem that a beamforming transmitting end can not control a beamforming weight feedback granularity. The method comprises: receiving a null data packet announcement (ndpa) frame comprising a weight feedback granularity requirement value transmitted by the beamforming transmitting end; receiving a null data packet (ndp) frame transmitted by the beamforming transmitting end, and measuring the beamforming weight by using the weight feedback granularity requirement value as a granularity; and transmitting a very high throughput compressed beamforming (vcbf) frame to the beamforming transmitting end, wherein the very high throughput compressed beamforming (vcbf) frame comprises the beamforming weight using the weight feedback granularity requirement value as the granularity.
07/03/14
20140188455
System and method for dual screen language translation
Generally, this disclosure provides systems and methods to facilitate real-time language translation between two speakers. A system may include an audio beamforming microphone configured to detect speech in a first language from a first speaker and to detect speech in a second language from a second speaker; a language translation module configured to translate the speech in the first language to text in the second language and to translate the speech in the second language to text in the first language; and a display element configured with a first display element side and a second display element side and further configured to display the text in the first language on the first display element side and to display the text in the second language on the second display element side..
07/03/14
20140187174
Smart antenna platform for indoor wireless local area networks
An apparatus comprising a first dipole antenna, a beamforming antenna array (bfaa), a first switch coupled to the dipole antenna, a second switch coupled to the bfaa, and a processor coupled to the first switch and the second switch, wherein the processor is configured to select between a multi-input, multi-output (mimo) antenna configuration and a beamforming configuration by setting the states of the first switch and the second switch.. .
07/03/14
20140187171
Aas-based information interaction method, system, ue and base station
Embodiments of the present invention disclose an advanced antenna system aas-based method for information interaction, which includes: sending, by a base station, a connection reconfiguration request to a user equipment (ue) which accesses the base station, and receiving a measurement report message returned from the ue, where the measurement report message carries three-dimensional coordinate information of the ue; performing, by the base station, beamforming according to the three-dimensional coordinate information of the ue carried in the measurement report message. Embodiments of the invention further disclose an aas-based system for information interaction, a ue and a base station.
07/03/14
20140187168
Method and apparatus for fast beam-link construction in mobile communication system
A method of forming a beam-link by a base station (bs) in a wireless communication system using a beamforming scheme includes determining at least one downlink beams to be used for downlink transmission and/or reception, transmitting a reference signal to a mobile station via the at least one downlink beam, receiving the reference signal via an uplink beam from the mobile station, and updating the at least one downlink beam to increase a signal-to-noise ratio (snr). Accordingly, a beam-link using an initial beam-link between the bs and the ms and adaptive beamforming can be rapidly constructed in a high frequency band bdma cellular system..
07/03/14
20140185719
System and method for discrete gain control in hybrid mimo/rf beamforming
A system for selectively and discretely amplifying or attenuating antennas in a hybrid multiple-input-multiple-output (mimo) radio distribution network (rdn) receiving system is provided herein. The system includes a mimo receiving system comprising a mimo baseband module having n branches; an rdn connected to the mimo receiving system, the rdn comprising at least one beamformer fed by two or more antennas, so that a total number of antennas in the system is m, wherein m is greater than n, wherein each one of the beamformers include a passive combiner configured to combine signals coming from the antennas coupled to a respective beamformer into a combined signal, wherein the at least one beamformer is further configured to selectively amplify or attenuate in discrete steps, one or more of the signals coming from the m antennas, based on qualitative metrics measured by the mimo baseband module..
07/03/14
20140184446
Random perturbation-based beamforming method and apparatus for use in mobile communication system
A method and apparatus configures a beamforming coefficient based on the signal strength information without collecting channel information by adjusting the phase of the antennas through random perturbation. An antenna control method of a base station in a wireless communication system using a beamforming technique includes measuring nth received signal strength at nth phase of at least one receive antenna, measuring (n+1)th received signal strength at (n+1)th phase shifted randomly from the nth phase in one of forward and backward directions, and configuring a beamforming coefficient with the phase at which the received signal strength is greatest through comparison of received signal strengths.
06/26/14
20140177561
Method and apparatus for transmitting and receiving control channel by beamforming in a wireless communication system
A method and apparatus for transmitting and receiving a control channel by beamforming in a wireless communication system are provided. The transmission method includes determining a plurality of pieces of control information to be transmitted on control channels and determining transmission beams for use in beamforming transmission of the plurality of pieces of control information, mapping at least one piece of beam region information indicating at least one beam region in a control channel region and the plurality of pieces of control information to the at least one beam region in the control channel region, at least one piece of control information corresponding to the same transmission beam being arranged in one beam region, and transmitting the mapped beam region information and the mapped control information by transmission beams corresponding to the beam regions in the control channel region..
06/26/14
20140177543
Techniques for variable channel bandwidth support
Techniques for supporting variable channel bandwidths in a wireless communications network are described. In one embodiment, for example, an apparatus may comprise a processor circuit and a communications management module, and the communications management module may be operable by the processor circuit to determine a channel bandwidth for communication over a channel of a wireless network, transmit a beamforming initiation message comprising a channel bandwidth parameter indicating the determined channel bandwidth, receive a beamforming initiation confirmation message confirming the channel bandwidth parameter, perform a beamforming training sequence to determine one or more beamforming parameters, and transmit one or more messages over the channel according to the determined channel bandwidth and the one or more beamforming parameters.
06/19/14
20140171142
Using multiple and a single feedback for ue uplink beamforming in soft handoff
Embodiments of the present invention describe methods for increasing the amount of information available to a mobile transmit diversity transmitter during soft handoff. According to embodiments of the invention, a transmit diversity transmitter may determine substantially when it is in uplink communication with one base station and downlink communication with another base station.
06/12/14
20140161105
Millimeter-wave communication station and method for multiple-access beamforming in a millimeter-wave communication network
Embodiments of a millimeter-wave communication station and method for multiple-access beamforming in a millimeter-wave network are generally described herein. In some embodiments, an initiating station performs multiple-access beamforming with one or more responding stations by announcing a number of sector-sweep (ss) slots of a beamforming training (bft) period and a number of ss frames of each ss slot.
06/12/14
20140160957
Channel state information calibration
A dedicated calibration device may be utilized by a wireless transceiver device, such as a base station, to compute compensation matrices. The wireless transceiver device and the dedicated calibration device can exchange training sequence signals.
06/12/14
20140160947
Method and system for unified rate adaptation for su-bf and mu-mimo operation
A method of providing rate adaptation in a multi-user wireless communication system including single-user beamforming (su-bf) and multi-user multiple-input multiple-output (mu-mimo) is described. In this method, a master rate, which is a modulation and coding scheme (mcs) for the su-bf, is determined.
06/12/14
20140160883
Frequency-domain beamforming
A method includes receiving from multiple transducers respective signals including reflections of a transmitted signal from a target. An image of the target is produced irrespective of sparsity of the received signals, by computing transducer-specific frequency-domain coefficients for each of the received signals, deriving, from the transducer-specific frequency-domain coefficients, beamforming frequency-domain coefficients of a beamformed signal in which the reflections received from a selected direction relative to the transducers are emphasized, and reconstructing the image of the target at the selected direction based on the beamforming frequency-domain coefficients..
06/05/14
20140155751
Method and system for element-by-element flexible subarray beamforming
The subarrays are formed dynamically switching the individual output signals from the transducer elements on an element-to-element basis after the time delay circuits have individually perform on the signal signals for time delay. For example, at least one crosspoint switch flexibly connects the time-delayed outputs on the element-to-element basis in order to dynamically form predetermined sets of subarrays.
06/05/14
20140154992
Explicit and implicit hybrid beamforming channel sounding
A channel sounding scheme is presented herein that relies on a combination of a first channel sounding procedure and a second channel sounding procedure. The first channel sounding technique is one that involves an exchange of dedicated channel sounding related signals to determine channel conditions between the first wireless communication device and the particular second wireless communication device.
06/05/14
20140153740
Beamforming pre-processing for speaker localization
Methods and apparatus to beamform a first plurality of microphone signals using at least one beamforming weight to obtain a first beamformed signal, beamform a second plurality of microphone signals using the at least one beamforming weight to obtain a second beamformed signal, and adjust the at least one beam forming weight so that the power density of at least one perturbation component present in the first or the second plurality of microphone signals is reduced.. .
06/05/14
20140153662
Downlink transmit beamforming
A wireless network access point can operate as a closed loop mimo device when communicating with a station that is operating as an open loop mimo device. Transmit/receive chains in the access point are calibrated to support aggregate channel reciprocity..
06/05/14
20140153461
Envelope tracker driven transmit beamforming
A method and telecommunication device in which the telecommunication device is provided with multiple antennas and power amplifiers to provide a beamformed transmit stage. An envelope tracking circuit helps achieve significant power savings in the power amplifier and can be used to provide the power supply for the multiple power amplifiers.
05/29/14
20140148155
Method and apparatus for implementing transmit beamforming
One of a first access point associated with the first coverage area or the client device in the first coverage area determines that the client device is likely to roam to the second coverage area. A beamforming link is established between the client device and a second access point associated with the second coverage area.
05/29/14
20140148107
Using multiple frequency bands with beamforming assistance in a wireless network
A communication device communicates with other communication devices in a wireless network using a first and a second frequency band. In accordance with some embodiments, inter-band beamforming assistance may be provided by the lower frequency band..
05/29/14
20140146909
Beamforming using predefined spatial mapping matrices
In one or more aspects data packets are iteratively transmitted to a receiver using predefined spatial mapping matrices, channel estimates are received from the receiver responsive to iteratively transmitted data packets, and one of the predefined spatial mapping matrices is selected for transmitting additional data packets to the receiver based on the received channel estimates.. .
05/29/14
20140146863
Apparatus and method for beamforming gain difference compensation according to change of transmitting and receiving beam pattern in beamforming based wireless communication system
A method of operating a mobile station (ms) in a wireless communication system using beamforming includes receiving a reference signal over a plurality of downlink transmit (tx) beams, measuring channel quality information of the received reference signal, and generating effective channel quality information by compensating for beamforming gain compensation information according to the channel quality information.. .
05/29/14
20140145880
Modular parallel beamforming system and associated methods
A beamforming system comprising a plurality of modular beamformers is provided. The modular beamformers may be operatively coupled to each other (for example, in parallel).
05/22/14
20140141713
Reflective beamforming for performing chip-to-chip and other communications
A transmitter front-end for wireless chip-to-chip communication, and for other, longer-range (e.g., several meters or several tens of meters) device-to-device communication is disclosed. The transmitter front-end can include a plurality of reflector power amplifiers implemented on an ic chip and an on-chip or on-package antenna for wireless transmitting a signal to another ic chip or device.
05/22/14
20140139372
Beam direction selection method and apparatus for use in beamforming system
A method and apparatus for selecting a beam direction is for use in a beamforming system. The beam direction selection method of a reception device having a plurality of antenna elements in a wireless communication system using beamforming according to the present disclosure includes acquiring a first reception beam angle estimated as optimal by allocating a first predetermined number of antenna elements to each of beam ports and scanning signals and acquiring a second reception beam angle estimated as optimal by allocating a second predetermined number of antenna elements, which is greater than the first predetermined number, to some of the beam ports and scanning the signals using the first reception beam angle.
05/15/14
20140134956
Pseudo-omni-directional beamforming with multiple narrow-band beams
In a technique for communication with a station on a wireless network, the technique includes forming a plurality of narrow-band beams, each having a different angular direction from an antenna of a base station and collectively distributed over a beamspace to form a pseudo-omni-directional beam pattern. That beamspace may span an entire spherical region or a portion thereof, for example, when the narrow-band beams are broadcast over a sector of an entire spherical region.
05/15/14
20140133445
Enhanced node b and method for precoding with reduced quantization error
Embodiments of an enhanced node b (enb) and method for precoding with reduced quantization error are generally described herein. In some embodiments, first and second precoding-matrix indicator (pmi) reports may be received on an uplink channel and a single subband precoder matrix may be interpolated from precoding matrices indicated by both the pmi reports.
05/08/14
20140126662
Beamforming for non-collaborative, space division multiple access systems
A wireless communication system non-collaborative, multiple input, multiple output (mimo) space division multiple access (sdma) system determines subscriber station combining and weighting vectors that yield a high average signal-to-interference plus noise ratio (sinr). Each subscriber station independently transmits information to a base station that allows the base station to determine a weight vector wi for each subscriber station using the determined combining vector of the subscriber station.
05/08/14
20140126408
User equipment
A channel state information (csi) feedback method and a user equipment (ue) are provided for better support of joint transmission (jt) and beamforming/coordinated scheduling (cb/cs). For jt, phase information for an adjacent base station (bs) is fed back.
05/01/14
20140121524
Tablet ultrasound system
Exemplary embodiments provide systems and methods for portable medical ultrasound imaging. Preferred embodiments utilize a tablet touchscreen display operative to control imaging and display operations without the need for using traditional keyboards or controls.
05/01/14
20140121516
Method of determining beamforming coefficient, beamforming method and ultrasonic imaging apparatus
Disclosed herein are a beamforming method, a method of determining a beamforming coefficient, and an ultrasonic imaging apparatus. The beamforming method includes radiating a target object with ultrasonic waves and receiving a plurality of ultrasonic signals reflected from the target object, acquiring beamforming computation results of some of the plurality of received ultrasonic signals and determining a beamforming coefficient candidate group based on a beamforming computation result of the some of the received ultrasonic signals, acquiring beamforming computation results of the plurality of received ultrasonic signals or the some of the received ultrasonic signals by applying beamforming coefficients of the beamforming coefficient candidate group and selecting at least one beamforming coefficient from the beamforming coefficient candidate group based on the beamforming computation results of the plurality of ultrasonic signals, and beamforming the plurality of ultrasonic signals using the selected at least one beamforming coefficient as a weight..
05/01/14
20140121502
Object-pose-based initialization of an ultrasound beamformer
Beamforming to image an object (310), such as an interventional tool, is enhanced by initializing the beamformer (308) with the object's location, and optionally its orientation. The initializing uses an estimate of the location/orientation.
05/01/14
20140120851
Dc offset filter for wide band beamforming receivers
A dc offset filter for wide band beamforming receivers is disclosed. In an exemplary embodiment, an apparatus includes a first mixer configured to down-convert an rf wideband beamformed signal to generate a first baseband wideband beamformed signal, the rf wideband beamformed signal having a beam pattern selected from a plurality of beam patterns, and a notch filter configured to remove dc offset from the first baseband wideband beamformed signal independent of the beam pattern..
05/01/14
20140119568
Adaptive microphone beamforming
The present invention relates to adaptive beamforming in audio systems. More specifically, aspects of the invention relate to a method for adaptively estimating a target sound signal by establishing a simulation model simulating an audio environment comprising: a plurality of spatially separated microphones, a target sound source, and a number of audio noise sources..
05/01/14
20140119301
Signal transmission and reception method using random beamforming in wireless communication system and apparatus therefor
A method for transmitting a signal to a user equipment by a base station in a wireless communication system is disclosed. The method includes receiving information about a preferred beamforming vector in a first subframe from the user equipment, selecting a first random beamformer corresponding to the first subframe from a beamforming vector set for the first subframe, using the information about the preferred beamforming vector, transmitting a downlink signal to the user equipment in the first subframe using the first random beamformer, selecting a second random beamformer corresponding to a second subframe, using the first random beamformer, and transmitting a downlink signal to the user equipment in the second subframe using the second random beamformer..
04/24/14
20140113669
Method of handling beamforming feedback in a wireless communication system and related communication device
A method of handling a beamforming feedback for a base station of the wireless communication system comprises receiving a message comprising information of an interference caused by a communication between the base station and a communication device of the wireless communication system; determining an accuracy level of channel information according to the information of the interference; controlling the communication device to transmit the channel information with the accuracy level to the base station; and performing a beamforming according to the channel information to communicate with the communication device, after receiving the channel information transmitted by the communication device.. .
04/24/14
20140112317
Efficient and flexible transmit beamforming sector sweep in a multi-antenna communication device
A method implemented in a communication device includes receiving a first beamforming training transmission corrupted by a collision, determining a first station to which the first beamforming training transmission corresponds based on the first beamforming training transmission corrupted by the collision, and in response to determining the first station, transmitting a signal to the first station to prompt the first station to transmit a second beamforming training transmission.. .
04/24/14
20140112288
Coordinated set selecting method and device
Disclosed are a coordinated set selecting method and device, which are applicable to a wireless communication system. The coordinated set selecting method comprises the following steps: determining a transmission manner adopted by a wireless communication system, the transmission manner being joint processing or coordinated scheduling/beamforming; and, directed to the transmission manner adopted by the wireless communication system, selecting a coordinated set according to a coordinated set selecting mechanism adapting to the transmission manner.
04/24/14
20140112220
Method and apparatus for transmitting and receiving common channel information in wireless communication system
Methods and apparatus are provided for transmission and reception of common channel information in a mobile communication system using multi-antenna-based beamforming. A number of beams to be used for transmission to a terminal is determined at a base station.
04/24/14
20140111311
Method and apparatus for operating an rfid reader
A method and apparatus for operating an rfid scanner is provided herein. During operation, an rfid scanner will utilize beamforming techniques to appropriately beamform an interrogation signal.
04/17/14
20140106807
Central node apparatus and method for transmitting wireless signals between central office node and remote node using beam patterns and antenna polarization
A central office node using beam patterns and antenna polarizations, a remote node, and a wireless communication method between the nodes. The central office node includes: a first antenna array with first polarization attributes; a second antenna array with second polarization attributes; and a transmitter unit configured to transmit data to a plurality of remote nodes using beam patterns generated during beamforming and the polarization of the first and second antenna arrays..


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Beamforming topics: Beamforming, Access Point, Synchronization, Allocation, Communication System, Modulation, Constructive, Error Rate, Magnetic Resonance Imaging, Transmitter, Digital Beamforming, Covariance, Transmit Diversity, Computer Readable, Secure Communication

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