|| List of recent Beamforming-related patents
| 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..
| 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.
| 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..
| 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.
|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.
|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.
|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.
|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.. .
|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.. .
|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..
|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.. .
|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.
|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..
|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.
|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..
|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.. .
|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.
|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..
|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..
|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.
|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..
|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.
|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.
|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.
|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.
|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.
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..
|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.
|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.
|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.. .
|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..
|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.
|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.
|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..
|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.. .
|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.. .
|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).
|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.
|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.
|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.
|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.
|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.
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.
|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.
|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..
|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.
|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..
|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..
|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..
|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.. .
|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.. .
|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.
|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.
|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.
|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..
|Method and arrangement in a mobile communications network|
The present invention relates to an arrangement and method to design orthogonal ue-specific reference signals so that multiple ue-specific reference signals are feasible to support non-codebook-based multi-stream beamforming/precoding. This is achieved by re-using an existing ue-specific reference signal to obtain additional ue-specific reference signals being orthogonal to the existing ue reference signal..
|Method and system for explicit feedback with sounding packet for wireless local area networks (wlan)|
Aspects of a method and system for explicit feedback with a sounding packet for wireless local area networks (wlan). Aspects of the system may include a beamforming block that may enable generation of a plurality of rf chain signals based on a current steering matrix, where the current steering matrix may be a non-identity matrix.
|Beamforming for increasing cell edge capacity in a heterogeneous network|
Methods of communicating with a selected user equipment terminal (ue) in a first cell served by a base station and a remote radio head include forming a list of non-targeted ues including other ues in the first cell and cell edge ues in a neighboring cell that borders the first cell that are located near a border of the first cell and the neighboring cell, generating a list of candidate precoding matrices that can be used to communicate with the selected ue from the base station and/or from the remote radio head, generating a list of available precoding matrices by discarding from the list of candidate precoding matrices those precoding matrices that may cause interference to at least one non-targeted ue, selecting a precoding matrix from the list of available precoding matrices, and communicating with the selected ue using the selected precoding matrix.. .
|Mitigation of interfence from a mobile relay node to heterogeneous networks|
Devices, systems and methods for mitigating the interference introduced by mobile relay nodes in a heterogeneous network are described. The techniques described apply fractional frequency reuse and power controlled beamforming to mitigate such interference..
|Method and apparatus for acoustic area monitoring by exploiting ultra large scale arrays of microphones|
Systems and methods are provided to create an acoustic map of a space containing multiple acoustic sources. Source localization and separation takes place by sampling an ultra large microphone array containing over 1020 microphones.
|High-throughput beamforming mimo receiver for millimeter wave communication and method|
A receiver in a communication system is provided that includes a synchronization module and a channel estimator. The synchronization module is configured to identify an end of a cyclic prefix (cp) in a received signal using slope detection by monitoring a detection metric threshold in the received signal.
|Apparatus and method for transmitting/receiving feedback information in a wireless communication system using beamforming|
An apparatus performs a method for generating information indicating channel quality when a dynamic range of a receive signal strength and an interference signal strength is considerable in a wireless communication system using beamforming. A base station (bs) for processing feedback information for scheduling receives from a mobile station (ms) first feedback information comprising a receive signal strength measurement result in paths selected from a plurality of downlink paths between the bss and the ms, designates a transmit (tx) resource for interference measurement of the ms based on the first feedback information, receives from the ms second feedback information comprising an interference measurement result in the designated tx resource region, and calculates a signal to interference plus noise ratio (sinr) of the ms based on the first feedback information and the second feedback information.
|Access control reader with audio spatial filtering|
An access control reader enhances audio data captured by a beamforming microphone array. The access control reader determines a direction to a user and then utilizes beamforming in the direction of the user to enhance the user's voice.
|Ultrasonic diagnostic apparatus and beamforming method|
An ultrasonic diagnostic apparatus includes: a first reference beam generating unit generating a first reference beam from das signals calculated in an n-th frame; a second reference beam generating unit generating a second reference beam from a das signal calculated in an (n−1)-th frame, the das signal calculated in the n-th frame, and another das signal calculated in an (n+1)-th frame; an attenuation coefficient calculating unit calculating, based on the first reference beam and the second reference beam, an attenuation coefficient to be multiplied by the das signals calculated in the n-th frame; and a beamforming unit generating and providing a beamformed signal generated for a reference scan line in the n-th frame by multiplying a das signal calculated in the n-th frame by the attenuation coefficient.. .
|Iterative coordinated beamforming systems and methods|
Methods in a multiple-cell cellular network that implements iterative coordinated beamforming (i-cbf) algorithms with limited cooperation from adjacent nodes (base stations and/or mobile stations) may jointly determine transmit beamforming vectors and receive combining vectors to increase sum throughput. The transmit beamforming vectors and receive combining vectors can be determined based on a performance metric, such as by maximizing sinr (signal-to-interference-and-noise ratio) for each mobile station in the network, maximizing slnr (signal-to-leakage-and-noise ratio) for each base station in the network, or minimizing smse (sum mean square error).
|Method for wifi beamforming,feedback, and sounding (wibeam)|
Methods for wifi beamforming, feedback, and sounding (wibeam) are described. Codebook based beamforming feedback signaling and sounding mechanisms for use in wireless communications are disclosed.
|Method for transmitting a signal from a transmitter to a receiver in a power line communication network, transmitter, receiver, power line communication modem and power line communication system|
A method for transmitting a signal from a transmitter over a channel to a receiver on a power line network, wherein said signal is ofdm-modulated on a set of sub-carriers, is proposed, wherein an ofdm tonemap and an eigenbeamforming encoding matrix are determined based on a channel estimation for each sub-carrier, a tonemap feedback signal and an eigenbeamforming feedback signal are generated, which are descriptive of said ofdm tonemap and said eigenbeamforming encoding matrix, respectively, and transmitted to the transmitter. A corresponding receiver, a transmitter, a power line communication and a power line communication system are described as well..
|System and method for adaptive beamforming for specific absorption rate control|
A system may include a modifiable mobile device having at least two antennas coupled to fractional amplifiers, with returned power detectors. A beamformer unit provides adaptive beam shaping pattern, and a baseband processor provides beam pattern requirements, wherein the beamformer unit modifies the beam pattern requirements with return loss sampling information to shape the adaptive beam pattern so that a transmitted beam pattern minimizes transmitted power reflected back to the mobile device.
|Multi-user multi-stream beamforming method, apparatus, and base station|
The present invention relates to a multi-user multi-stream beamforming method and apparatus, and a base station. The multi-user multi-stream beamforming method includes the steps of: a) calculating a beamforming matrix of each user in the multi-user according to a minimum leakage principle; b) determining a user average signal to leakage noise ratio (slnr) of the multi-user according to the beamforming matrix of each user; c) determining whether the user average slnr is stable, and if the user average slnr is not stable, returning to step a) to recalculate the beamforming matrix of each user by using the calculated beamforming matrix of each user..
|Method and apparatus for combined adaptive beamforming and mimo in indoor wireless lan|
A wireless local area network (wlan) device comprising a processor, a transceiver coupled to the processor, a switching mechanism coupled to the transceiver, a beamforming antenna assembly coupled to the switching mechanism, and a multiple input, multiple output (mimo) antenna assembly coupled to the switching mechanism. Included is an apparatus comprising a processor and a memory coupled to the processor, wherein the memory comprises instructions that cause the processor to calibrate a wlan device, select an optimal antenna configuration, track the wlan device performance, and wait for a triggering event.
|Antenna resource management for multi-antenna structure|
A radio network node antenna management system dynamically manages a multi-antenna structure (200). The multi-antenna structure (200) includes a set of n antennas with beamforming capability.