Abstract: System and method for determining positional and activity information of a mobile device in synchronization with the wake-up period of the mobile device to perform antenna beam management and adjusting the wake-up period based on the positional and activity information of the mobile device. A mobile device comprises: a memory; at least one sensor for detecting data: a processor communicatively coupled to the memory, the processor is configured to: synchronize the at least one sensor with a wake-up period of the mobile device; receive the data detected by the at least one sensor; determine positional information based on the received data; determine activity information based on the received data; estimate a forward position of the mobile device based on the positional information and the activity information; and perform a management of antenna beams of the mobile device based on the positional information, the activity information and the forward position.

Abstract: A control system is presented for controlling operation of a phased-array antenna comprising N antenna elements each comprising H and V polarization terminals. The control system includes: an analogue circular polarization system (ACTS) and a digital polarization control system (DPCS). The ACPS comprises an array of N analogue circular polarization circuits (ACPCs) associated with said N antenna elements, respectively, such that each ACPC is connectable to the V and H polarization terminals of the respective antenna element. The ACPS is configured and operable with N analog circular polarization signal components each being either left or right circular polarization signal.

Abstract: A radar system, apparatus, architecture, and method are provided for generating a difference co-array virtual aperture by using a radar control processing unit to coherently combine virtual array apertures from multiple small aperture radar devices to construct a sparse MIMO virtual array aperture and to construct an extended difference co-array virtual array aperture that is larger than the MIMO virtual array aperture by using an FFT hardware accelerator to perform spectral-domain auto-correlation based processing of the sparse MIMO virtual array aperture to fill in holes in the sparse MIMO virtual array aperture and to suppress spurious sidelobes caused by holes in the sparse MIMO virtual array aperture.

Abstract: Examples disclosed herein relate to a communication system including a transceiver module, a rearrangeable switch network coupled to the transceiver module, a power distribution network coupled to the rearrangeable switch network, and a plurality of Beam Steering Phase Array (“BSPA”) antennas, each coupled to the power distribution network and dynamically controllable to generate beams according to a power regulation requirement for a set of satellites.

Abstract: An apparatus includes a radio-frequency (RF) receiver for receiving an RF signal using a plurality of antennas. The RF receiver includes a demodulator to provide a switch signal to cause the RF receiver to use an antenna in the plurality of antennas. The RF receiver further includes a carrier frequency offset (CFO) correction circuit that uses an estimation of the carrier frequency offset and an estimation of phase differences to remove the carrier frequency offset.

Abstract: A method of transmitting and receiving signals by a transmission device in a wireless communication system is disclosed. The method includes receiving a reference signal (RS) using a received beam in a first array, measuring a maximum value of an interference signal based on the RS, and determining a beam direction and a weight of the received beam based on the maximum value of the interference signal. The interference signal is measured within a predetermined weight range.

Abstract: A near-field test system for a phased array antenna includes a probe, a beam forming network, and a computing system. The probe is disposed at a fixed position in a near-field of the phased array antenna and transmits a test beam toward a fixed location on the phased array. The beam forming network is coupled to the phased array and includes a plurality of phase shifters and a beam summer. The phase shifters steer received beams for each antenna element of the phased array to form a planar wave front. The beam summer is coupled to the phase shifters and combines power of the received beams. The computing system is coupled to the beam forming network and scales combined power of the received beams and generates a virtual spectrum for the phased array antenna from scaled power of the received beams.

Abstract: Techniques and apparatuses are described for radar angular ambiguity resolution. These techniques enable a target's angular position to be determined from a spatial response that has multiple amplitude peaks. Instead of solely considering which peak has a highest amplitude, the techniques for radar angular ambiguity resolution select a frequency sub-spectrum, or multiple frequency sub-spectrums, that emphasize amplitude or phase differences in the spatial response and analyze an irregular shape of the spatial response across a wide field of view to determine the target's angular position. In this way, each angular position of the target has a unique signature, which the radar system can determine and use to resolve the angular ambiguities. Using these techniques, the radar can have an antenna array element spacing that is greater than half a center wavelength of a reflected radar signal that is used to detect the target.

Abstract: In one aspect, a first playback device is configured to (i) receive a set of voice signals, (ii) process the set of voice signals using a first set of audio processing algorithms, (iii) identify, from the set of voice signals, at least two voice signals that are to be further processed, (iv) determine that the first playback device does not have a threshold amount of computational power available, (v) receive an indication of an available amount of computational power of a second playback device, (vi) send the at least two voice signals to the second playback device, (vii) cause the second playback device to process the at least two voice signals using a second set of audio processing algorithms, (viii) receive, from the second playback device, the processed at least two voice signals, and (ix) combine the processed at least two voice signals into a combined voice signal.

Abstract: The described technology is generally directed towards beam recovery for an antenna array. One or more recovery beams or recovery beam patterns can be defined for an antenna array, and in response to a failure, the antenna array can be restored to a defined recovery beam or recovery beam pattern. Techniques for defining recovery beams and recovery beam patterns for the antenna array, selecting a recovery beam or recovery beam pattern for the antenna array, and entering a selected recovery beam or recovery beam pattern by the antenna array are also disclosed.

Abstract: A plurality of reception modules (1a,1b) receive signals from a plurality of antennas (2a,2b) respectively. A synthesizer (3) synthesizes output signals of the plurality of reception modules (1a,1b). Each of the plurality of reception modules (1a, 1b) includes a first sample-and-hold circuit (7a,7b) sampling and holding a received signal, a second sample-and-hold circuit (8a,8b) sampling and holding an output signal of the first sample-and-hold circuit (7a,7b), and a controller (9a,9b) controlling a timing at which the first sample-and-hold circuit (7a,7b) samples and holds the signal. Operation timings of the first sample-and-hold circuits (7a,7b) are set for the respective reception modules (1a,1b). Operation timings of the second sample-and-hold circuits (8a,8b) of the plurality of reception modules (1a,1b) are same.

Abstract: A method is disclosed for a transmitter apparatus configured to transmit signals to a receiver apparatus using a beam selected from a plurality of available beams, wherein a set of the plurality of available beams is for beam selection measurements by the receiver apparatus. The method comprises determining a collection of linear combinations of beams of the set, wherein the cardinality of the collection is lower than a cardinality of the set, and transmitting each of the linear combinations of beams for beam selection measurements by the receiver apparatus. A method is also disclosed for a receiver apparatus configured to receive signals from a transmitter apparatus via a beam selected from a plurality of available beams.

Abstract: The present invention provides a massive MIMO antenna for wireless communication, the massive MIMO antenna comprising a plurality of antenna elements configured to receive upstream wireless signals and to transmit downstream wireless signals, the antenna elements being arranged in a matrix-like arrangement comprising rows and/or columns of antenna elements, a plurality of transceivers, each coupled to at least one of the antenna elements, and a control unit configured to selectively activate and/or deactivate specific ones of the transceivers. In addition, the present invention provides a respective method for operating a massive MIMO antenna.

Abstract: A geodesic antenna includes an outer cone. The geodesic antenna also includes an inner cone positioned partially within the outer cone and, together with the outer cone, defining an electromagnetic waveguide. The geodesic antenna further includes multiple driven elements configured to generate electromagnetic waves in a space between the outer and inner cones. In addition, the geodesic antenna includes a ground plane configured to reflect first electromagnetic waves of the generated electromagnetic waves back into the space between the outer and inner cones. The ground plane has a geometric design that prevents at least some second electromagnetic waves of the generated electromagnetic waves from being reflected from the ground plane and forming an interferometer pattern.

Abstract: Embodiments relate to a free space optical (FSO) communications system with a feed-forward control path. A data-encoded FSO beam is transmitted from a local terminal to a remote terminal. The local terminal directs a propagation direction of the FSO beam by a beam steering unit. To reduce pointing errors between the terminals, the FSO communications system includes a feed-forward control path. The control path includes an inertial measurement unit (IMU) that outputs motion data indicative of motion of the local terminal, for example if the local terminal is mounted to a tower that sways. The control path also includes a controller that receives the motion data from the IMU and generates feed-forward control signals for the beam steering unit. The control signals compensate for an effect of the motion of the local terminal on the propagation direction of the FSO beam.

Abstract: A system and method are disclosed and include receiving a wireless signal. The method includes generating a first and second set of digital data that are representative of the wireless signal. The method includes obtaining a first and second sample that is representative of a cosine and sine component, respectively, of a pre-known portion of the first set. The method includes obtaining a third and fourth sample that is representative of a cosine and sine component, respectively, of a pre-known portion of the second set. The method includes determining a first phase angle value based on an amplitude of the first and second samples and a second phase angle based on an amplitude of the third and fourth samples. The method includes determining an angle of arrival based on a difference between the first and second phase angle values.

Abstract: Systems and methods for forming optimized transmit or receive beams using an array antenna. A parallelized beam forming algorithm is employed that allows the beam to be optimized to increase performance over typical time-delay beam steering. The parallelized beam forming optimization algorithm is based on a limited-memory Broyden-Fletcher-Goldfarb-Shanno algorithm with bound constraints. Using a matrix form of both the beam and beam gradient functions allows parallel optimization through beam matching against a designed target beam. Because the optimization is both efficient and parallelizable, beams may be optimized beams in real time. Hence the optimization technique may be implemented directly as part of a beam steering controller.

Abstract: In order to prospectively avoid communication failures or reduction in throughput of each user terminal, thereby improving users' satisfaction with communication service, a base station is configured to control wireless communication with a terminal device by using any of multiple transmission beams formed by the base station or those formed by another base station and includes a wireless communication device and a controller configured to acquire correction information used for correcting a measurement value for evaluating reception status of each transmission beam and cause the wireless communication device to transmit the correction information to the user terminal so as to thereby promote the user terminal to use, or inhibit the user terminal from using a specific transmission beam.

Abstract: An apparatus includes an antenna array having a plurality of antennas. The antenna array is configured to receive a multi-carrier signal from a multi-antenna transmitter over a radio channel. The multi-carrier signal has at least two subcarriers, and each subcarrier is mapped at the transmitter to a respective subcarrier-beamformer. The respective subcarrier-beamformers has non-identical null and beam cone directions. A processor is configured to identify a communication direction for a radio signal communication between the apparatus and the transmitter. The communication direction is identified based on one or more specular path components of the radio channel which are related to a null or to a maximum of a subcarrier-beamformer.

Abstract: Examples described herein include recursive techniques for calculating frequency-localized weights for adaptive beamformers. Components of solutions for other subcarriers are weighted and used to calculate weights for a particular subcarrier. For example, a previously-calculated cross-correlation vector and/or inverse covariance matrix from another subcarrier may be updated for use in calculating weights for a subsequent subcarrier. In some examples, the previously-calculated components are weighted by a forgetting factor. The previously-calculated components themselves may have weighted contributions from yet previously-calculated components.

Abstract: A method for communication in a WLAN includes associating a client station (STA) with a basic service set (BSS) of a first access point (AP), having first antennas, in a wireless local area network (WLAN). A second AP, having second antennas, in the WLAN is synchronized with the first AP. Distributed beamforming parameters are computed over a group of the first antennas and the second antennas. Data for transmission to the STA are distributed to both the first AP and the second AP. The distributed data are distributed to the STA from the first AP via the first antennas in the group and the second AP via the second antennas in the group in synchronization in accordance with the distributed beamforming parameters.

Abstract: Techniques and apparatuses are described for radar angular ambiguity resolution. These techniques enable a target's angular position to be determined from a spatial response that has multiple amplitude peaks. Instead of solely considering which peak has a highest amplitude, the techniques for radar angular ambiguity resolution select a frequency sub-spectrum, or multiple frequency sub-spectrums, that emphasize amplitude or phase differences in the spatial response and analyze an irregular shape of the spatial response across a wide field of view to determine the target's angular position. In this way, each angular position of the target has a unique signature, which the radar system can determine and use to resolve the angular ambiguities. Using these techniques, the radar can have an antenna array element spacing that is greater than half a center wavelength of a reflected radar signal that is used to detect the target.

Abstract: A communication device that comprises a plurality of distributed transceivers, a central processor and a network management engine, may be configured for a multiplexing mode of operation. Configuring of the multiplexing mode of operation may include configuring one or more communication modules for multiplexing a plurality of data streams. Each of the communication modules may comprise one or more antennas and/or antenna array elements and one or more of said plurality of distributed transceivers associated with said one or more antennas and/or antenna array elements. The communication modules may be configured to be spatially distinct and/or to use different frequency channels. The data streams may be communicated to a single target device or to a plurality of target devices.

Abstract: In various aspects, a Multiple-Input-Multiple-Output (MIMO) antenna array configuration, a wireless communication device, and a method for receiving multiple beamformed signals are described herein. According to at least one aspect, a MIMO antenna array configuration is described to include a plurality of Radio Frequency (RF) chains, a plurality of antenna elements, and a plurality of phase shifters. In some aspects, the antenna elements and phase shifters form a plurality of antenna arrays. The number of antenna arrays is, in at least one aspect, larger than the number of RF chains.

Abstract: Pulse compression units (9-m) (m=1, . . . , M) obtain frequency spectra of received signals by performing Fourier transform on the received signals output from receiver devices (7-m), calculate spectrum products of references for pulse compression, the references determined by beam directional angles indicating propagation directions of transmission pulses and carrier frequencies, and the frequency spectra, and perform inverse Fourier transform on the spectrum products. This enables reduction in the calculation scale by reducing the number of times of execution of Fourier transform and inverse Fourier transform when pulse compression is performed.

Abstract: A communication device that comprises a plurality of distributed transceivers, a central processor and a network management engine, may be configured for a multiplexing mode of operation. Configuring of the multiplexing mode of operation may include configuring one or more communication modules for multiplexing a plurality of data streams. Each of the communication modules may comprise one or more antennas and/or antenna array elements and one or more of said plurality of distributed transceivers associated with said one or more antennas and/or antenna array elements. The communication modules may be configured to be spatially distinct and/or to use different frequency channels. The data streams may be communicated to a single target device or to a plurality of target devices.

Abstract: A method for communication includes respectively associating each of a plurality of client stations (STAs) with at least one basic service set (BSS) of at least one access point (AP) in a WLAN. The APs in the WLAN are synchronized prior to transmitting data to the STAs. First and second groups of the antennas are defined for downlink communication with the first and second STAs, each of the groups including antennas belonging to at least two of the APs. Different, first and second distributed beamforming parameters are computed over the first and second groups of the antennas. Respective data for transmission to the first and second STAs are distributed to the APs to which the antennas in the respective first and second groups belong and are transmitted in synchronization in accordance with the first and second distributed beamforming parameters.

Abstract: A communication device that comprises a plurality of distributed transceivers, a central processor and a network management engine, may be configured for a multiplexing mode of operation. Configuring of the multiplexing mode of operation may include configuring one or more communication modules for multiplexing a plurality of data streams. Each of the communication modules may comprise one or more antennas and/or antenna array elements and one or more of said plurality of distributed transceivers associated with said one or more antennas and/or antenna array elements. The communication modules may be configured to be spatially distinct and/or to use different frequency channels. The data streams may be communicated to a single target device or to a plurality of target devices.

Abstract: A network node includes an antenna array having a plurality of antenna sub-arrays. A switching device is coupled to the antenna array, the switching device being configured to connect at least two input signals to respective ones of the plurality of antenna sub-arrays. A processor is configured to determine a channel capacity, wherein based on the channel capacity, the processor is configured to control the switching device to switch a connection of the at least two input signals to different ones of the plurality of antenna sub-arrays to change one or more of an inter-distance between the respective ones of the plurality of antenna sub-arrays and a down-tilting angle of the antenna array.

Abstract: This invention presents methods for power allocation for each data stream on each transmitting antennas in MU-MIMO wireless communication systems comprising the BS computing the temporary beamforming matrix, constructing special matrices and vectors with the maximum transmitting power on each antenna, the allocated power to each data stream, the channel quality of each data stream, and the amplitude of each element of the temporary beamforming matrix, calculating the power allocated to each data stream on each antenna with the calculated special matrices and vectors, and adjusting each element of the temporary beamforming matrix to obtain the final beamforming matrix.

Abstract: Embodiments of the present application provide a channel state information feedback method, device, and system. The method includes: generating an uplink signal, where the uplink signal carries information for identifying multiple codewords and weights of the codewords; and transmitting the uplink signal to a base station (BS), so that the base station estimates a downlink channel based on the multiple codewords and weight information of the codewords in the uplink signal. In the embodiments of the present application, a user equipment UE side reports multiple codewords and weight information of the multiple codewords. This can resolve a problem in the prior art that precision of downlink channel estimation performed by a BS side is relatively low because only a single codeword is reported, and can effectively enhance precision indicated by channel information, without increasing complexity of a codebook design and implementation.

Abstract: A method of designing a codebook for analog beamforming. In some embodiments, the method includes: generating a plurality of training points, based on a predefined distribution, each training point being a channel vector; generating, for each of a plurality of codewords, a respective initial value; assigning, in a first assignment operation, each of the training points to a respective desired codeword, the desired codeword maximizing a metric function of a beamforming gain for the training point over the codewords; updating, in a first updating operation, each of the codewords according to the training points assigned to it; and determining whether convergence is achieved; and in response to determining that convergence is achieved, determining a final codebook.

Abstract: Described is a system for signal denoising using a cognitive signal processor having a time-varying reservoir. The system receives a noisy input signal of a time-series of data points from a mixture of waveform signals. The noisy input signal is linearly mapped into the time-varying reservoir. A high-dimensional state-space representation of the mixture of waveform signals is generated by combining the noisy input signal with a plurality of reservoir states. The system then generates a denoised signal corresponding to the noisy input signal.

Abstract: When transmitting signals from a plurality of base stations (broadcasting stations), the base stations include at least a first base station having a first antenna with a first polarization and a second base station having a second antenna with a second polarization that is different from the first polarization. Then, when the first base station transmits a signal from the first antenna having the first polarization, the second base station transmits the same signal as the first antenna of the first base station from a second antenna having the second polarization, at the same time.

Abstract: A method and system analog beamforming for a single-connected antenna array is herein disclosed. A method includes estimating analog channels on a per-antenna basis, calculating explicitly an analog beamforming matrix based on the estimated analog channels, and performing analog beamforming based on the calculated analog beamforming matrix.

Abstract: A novel digital baseband beam forming system is disclosed including a plurality of digital baseband beam forming channels configured and operable for connecting via channel ports to a plurality of antenna channels associated with respective antenna elements for at least one of transmitting and receiving through the plurality of antenna elements one or more waveform signals encoding data streams. The digital baseband beam forming channels are configured and operable to apply at least one of phase and time delays of selective magnitudes to baseband signals associated with data streams encoding the waveform signals transmitted and/or received by the plurality of antenna elements, thereby beamforming said waveform signals to produce, by said waveforms, one or more data encoded beams associated with respective directions of propagation and encoding said data streams respectively. The digital baseband beam forming system may be implemented in chip (e.g.

Abstract: Techniques are described for wireless communication. A method for wireless communication at a user equipment (UE) may include receiving a beam training sequence transmitted by a network access device on a plurality of transmit beams, identifying, based at least in part on the received beam training sequence, one or more sets of multiple beams that are compatible with at least one configuration for routing signals between antenna subarrays of the UE and transceiver units (TXRUs) of the UE, and transmitting, to the network access device, an indication of the identified one or more sets of multiple beams. A method for wireless communication at the network device may include transmitting the beam training sequence, receiving the indication, and selecting, based at least in part on the received indication, a set of multiple beams of the one or more sets of multiple beams to use to communicate with the UE.

Abstract: A base station is configured to transmit a substantially unidirectional RF beam to a donor. The donor is in close proximity to a building, and provides communication signals corresponding to the unidirectional RF beam to a relay inside the building. The relay includes a phased array antenna panel having a staggered antenna assignment with predetermined phases for antennas in the phased array antenna panel to produce omnidirectional broad-beam RF signals inside the building.

Abstract: To generate a configuration entry in a master codebook. A base station according to one aspect of the present invention includes a codebook generating unit that determines a codebook subset corresponding to a predetermined configuration entry from a plurality of configuration entries in a master codebook, and a transmitter that transmits information of the predetermined configuration entry.

Abstract: In an antenna array, signals may be manipulated to increase coherency at certain locations (beamfocusing) and reduce or cancel the signals at other locations (nulling). This is accomplished by multiplying the signals received or transmitted by the set of antennas by a weight vector that is generated by determining a covariance matrix based on a vector representing signals at the set of antennas, vectors representing the desired beamfocusing and nulling locations, and a desired nulling depth.

Abstract: A communication network comprising a plurality of base stations arranged to communicate data to and from a plurality of mobile devices, and at least one first base station operable to establish a first wireless communication link with a selected mobile device from the plurality of mobile devices, said first wireless communication link enabling the selected mobile device to simultaneously provide further wireless communication links to two or more mobile devices for communicating data via the first wireless communication link.

Abstract: An outphasing transmitter includes a combiner, a decomposition block, first and second power amplifiers, and antennas in a phased array antenna panel. The combiner combines a plurality of beamforming signals into a composite input signal. The decomposition block decomposes the composite input signal into first and second decomposed radio frequency (RF) signals coupled to the first and second power amplifiers. Non-overlapping sub-arrays of the antennas may be uniquely associated with the first and second power amplifiers. Alternatively, groups of interleaved antenna rows may be uniquely associated with the first and second power amplifiers. Alternatively, random pluralities of the antennas may be randomly hard-wired to the first and second power amplifiers. Alternatively, pluralities of the antennas may be dynamically and selectably assigned to the first and second power amplifiers. The phased array antenna panel forms a plurality of RF beams corresponding to the plurality of RF beamforming signals.

Abstract: Methods and systems are provided for dynamically adjusting vertical beamforming weights to influence a width of a vertical beam emitted from an antenna. A quantity of users present in a particular geographic area is determined, where the user devices have a line of sight with the antenna and are vertically distributed from other user devices. CQIs are received from the user devices. It is determined that the quantity of user devices is above a maximum threshold of user devices, and the CQIs indicated that channel quality is below a minimum threshold. The amplitude and phase components of the vertical beamforming weight are adjusted to modify the width of the vertical beam emitted from the antenna.

Abstract: A communication system includes a transmitter, one or more active scattering platforms, and one or more remote receivers. The transmitter includes a beam forming network for transforming M signals into a set of shaped beams which are radiated toward the active scattering platforms by transmitter antenna elements. The active scattering platforms receive and re-radiate one or more of the radiated shaped beams toward the receivers. The beam forming network optimizes composite transfer functions under performance constraints. Each composite transfer function is a linear combination of transfer functions. Each transfer function characterizes propagation paths from one transmitter antenna element to one receiving antenna element. Each receiving antenna element is identified by a user element identification index in the transfer functions. Each receiver is identified by a user identification index.

Abstract: A mobile device may include a plurality of physical antennas configured to receive and transmit data. The physical antennas may be virtualized to enable efficient access and utilization of the computing resources of the physical antenna. Furthermore, the mobile device may support containerization of application executed by the mobile device. The virtualized physical antennas may be provided to various containers executed by the mobile device. Furthermore, a priority mechanism may be used to manage container access to the physical antennas.

Abstract: An outphasing transmitter includes a decomposition block, first and second power amplifiers, and antennas in a phased array antenna panel. The decomposition block decomposes a composite input signal into first and second decomposed radio frequency (RF) signals. The first and second decomposed RF signals are coupled to the first and second power amplifiers respectively. First and second non-overlapping sub-arrays of the antennas may be uniquely associated with the first and second power amplifiers respectively. Alternatively, first and second groups of interleaved antenna rows may be uniquely associated with the first and second power amplifiers respectively. Alternatively, first and second random pluralities of the antennas may be randomly hard-wired to the first and second power amplifiers respectively. Alternatively, first and second pluralities of the antennas may be dynamically and selectably assigned to the first and second power amplifiers respectively.

Abstract: System and method for dimension reduction and for channel and interference condition feedback in a Multi-User Multiple-Input-Multiple-Output (MU MIMO) wireless communication system. The method for dimension reduction includes determining a number of virtual antennas, vk, for beamformees pertaining to a multi user (MU) transmission group, reducing the dimension of said matrix by selecting a sub-set of antennas or by Eigen mode selection and sending a reduced dimension candidate transmit beamforming matrix or an effective channel matrix to a beamformer. The method for channel and interference condition feedback Interference condition includes sending to a beamformee metric indicative of the interference level from other streams.

Abstract: According to one aspect of the present invention, antennas or antenna nodes spaced away from each other by a predetermined distance or more are configured to be able to transmit control information of mutually different user equipment groups, thereby increasing the efficiency in the operation of control channels. In addition, according to another aspect of the present invention, a resource region for transmitting control information for an improved user equipment, which is a target of a multi-node cooperative transmission, is set differently from a resource region for transmitting control information for a legacy user equipment, thereby increasing the efficiency in the transmission of the control information for the improved user equipment.

Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of updating one or more beamforming settings of a beamformed link. For example, a first wireless station may be configured to estimate a change in an Angle of Arrival (AoA) of signals received from a second wireless station over a beamformed link between the first and second wireless stations; and to update one or more beamforming settings of the beamformed link based on the change in the AoA.

Abstract: A system and method for jamming cellular signals using aerial vehicles is provided. In a preferred embodiment, the aerial vehicles are unmanned aerial vehicles. A plurality of aerial vehicles are coordinated together to send signals to a predetermined area to jam the cellular network.