Abstract: In a system including at least one base station device, the base station device efficiently controls uplink signals. A mobile station device includes a path loss calculation unit 4051 configured to calculate path losses, each based on one of a plurality of types of reference signals received by a reception processing unit 401, a transmit power setting unit 4053 configured to set a desired transmit power for an uplink signal using the path losses calculated by the path loss calculation unit 4051, and a power headroom control unit 4055 configured to generate a power headroom using the desired transmit power set by the transmit power setting unit 4053, the power headroom being information concerning transmit power to spare, and configured to control transmission of the power headroom.

Abstract: A method for scheduling pairs in a plurality of pairs of devices for pair communication in a telecommunication network, each pair of devices including a transmitter and a receiver. The method includes: allocating a different time interval to each of the transmitters for emitting training signals, the training signals allowing determining channel estimates; obtaining channel information from at least one receiver having received training signals emitted by at least one of the transmitters, the channel information being determined by the receiver by analysis of the received training signal, the channel information including a channel estimate of a channel between the receiver and the transmitter that emitted the received training signal; and scheduling for pair communication, in the same time interval, the pairs for which a quality indicator verifies a predefined criterion, the quality indicator being determined using channel estimates obtained from receivers of the pairs in the set.

Abstract: A method, an apparatus, and a computer program product for operating a user equipment (UE) are provided. The apparatus determines a first set of beamforming directions for communication with a base station (BS) in a first network, monitors for beams in a second set of beamforming directions for communication with a millimeter wave base station (mmW-BS) based on the determined first set of beamforming directions, where the second set of beamforming directions includes the first set of beamforming directions, and where the mmW-BS is in a second network having a higher carrier frequency than the first network, and establishes a communication link with the mmW-BS based on a beamforming direction in the second set of beamforming directions.

Abstract: Measures for fading-based control of an antenna radiation pattern. Such measures may comprise reception of at least one radio wave signal via an antenna unit, detection of fading conditions in relation to the received at least one radio wave signal, and control of an antenna radiation pattern of the antenna unit, at least in terms of antenna lobe width, on the basis of the detected fading conditions.

Abstract: In adaptive modulation and coding scheme (MCS) selection for directional antenna systems, at least one table is defined that maps different ranges of signal quality values to different sets of MCS parameters. In some implementations, each range corresponds to a separate table (e.g., a given table will include the MCS and other information for that range of signal quality values). In the event an abrupt change in signal quality is detected (e.g., a change in received signal strength greater than or equal to a defined threshold), instead of using a conventional rate selection algorithm, a new MCS is selected through the use of the ranges from the table(s). In this way, a relatively large change in MCS may be accommodated, if warranted by the change in signal quality.

Abstract: A program storing computer-readable instructions therein for instructing a computer to perform analytical steps for associating user related data with a spatial hierarchy identifier, the program comprising a recording medium readable by the computer and the computer instructions stored on said recording medium instructing the computer to perform the processes including receiving user related data, determining the user that is associated with the user related data, determining the at least one location associated with the user, associating the at least one location with at least one first spatial hierarchy identifier, and associating the user related data with the at least one first spatial hierarchy identifier.

Abstract: A communication system includes multiple communication nodes and a processor. The communication nodes are configured to communicate over a tropospheric scattering channel. The processor is configured to communicate with the communication nodes over a secondary communication network, different from the tropospheric scattering channel, so as to control communication of the communication nodes over the tropospheric scattering channel.

Abstract: A method for determining a beamforming vector or a beamforming channel matrix in a communication system including a transmitting station and a receiving station, and a communication system. The transmitting and receiving stations include respective antenna groups and respective codebooks include a plurality of predefined beamforming vectors for the antenna group.

Abstract: A system and method are provided for triggering re-beamforming in a 60 GHz communication link based on information collected from platform positional sensors associated with one or the other or both of the transmitters/receivers that constitute ends of the communication link. The disclosed systems and methods monitor various positional sensors that may be used to sense translational and rotational movement of at least one of the platforms on which at least one of the transmitters/receivers is mounted. Information provided by the positional sensors is processed to determine whether or not to trigger re-beamforming for link recovery in 60 GHz communication link. Information provided by the sensors may be used in combination with other link operating metrics, such as PER and RSSI, to make an intelligent determination whether to trigger re-beamforming.

Abstract: Novel tools and techniques providing for the robust wire-based plus wireless distribution of communications signals from a provider to multiple customer premises. Certain embodiments comprise one or more modular communications apparatuses which are located near to customer premises. The modular communications apparatuses features an enclosure which is, at least in part, transparent to radio frequencies. A modular communications apparatus also typically includes one or more communications radios or transmitter/receiver devices within the enclosure. The apparatus also includes at least one and possibly more than one antenna located within the enclosure along with wire or cable-based signal output apparatus.

Abstract: A method and apparatus for beamforming in a wireless communication system are provided. The method of supporting beamforming in a wireless communication device includes detecting a direction change of the wireless communication device while communicating with a peer device. The method of supporting beamforming in a wireless communication device also includes adjusting a beam direction for communication with the peer device based on information indicating a direction change of the wireless communication device.

Abstract: An aircraft avionics system and method for automatically determining an aircraft position. The system and method determine distances to UAT or SSR ground stations. The system and method then determine the position of an aircraft by determining true bearings to SSR or UAT ground stations and determining the possible positions for the aircraft at which the aircraft is at respective bearings to each SSR or UAT ground station. An alternative system and method may determine distances based on timing signals in transmissions from the ground stations and determine one or more possible positions for the aircraft at which the aircraft is at the determined distances from respective ground stations. The system and method also may use dead reckoning or VOR or ADF signals to reduce the possible positions for the aircraft to a single possible position.

Abstract: A system incorporating the subject disclosure may include, for example, a method including determining, by a communication device comprising a processor, a usage state of the communication device. The communication device includes selectable antennas, and the usage state includes an orientation of the communication device. The method also includes selecting a set of antennas according to the usage state, and obtaining an antenna gain pattern for an antenna in the selected set of antennas. The method further includes evaluating an expected performance of an antenna configuration corresponding to the selected set of antennas, relative to a performance of an existing antenna configuration. The method also includes initiating usage of the antenna configuration in accordance with improved performance relative to the existing antenna configuration. The antenna configuration comprises a polarization configuration, and the selected set of antennas comprises elements in different planes.

Abstract: A method for determining a transmission direction for a communication of a network component of a radio communications network may include: determining a reference transmission direction based on a plurality of predetermined transmission directions that a network component of a radio communications network is configured to transmit at; selecting a plurality of candidate transmission directions in a spatial vicinity of the reference transmission direction, the plurality of candidate transmission directions being a subset of the plurality of predetermined transmission directions; and selecting a transmission direction for a communication of the network component from the reference transmission direction and the plurality of candidate transmission directions based on a selection criterion.

Abstract: A poly spiral antenna includes spiral antenna sections and interconnecting traces. A first spiral antenna section has a first interwoven spiral pattern and a first excitation configuration to provide a first radiation pattern component. A second spiral antenna section has a second interwoven spiral pattern and a second excitation configuration to provide a second radiation pattern component. A third spiral antenna section has a third interwoven spiral pattern and a third excitation configuration to provide a third radiation pattern component. The interconnecting traces couple the first, second, and third spiral antenna sections together such that the first, second, and third radiation pattern components form a radiation pattern of the poly spiral antenna.

Abstract: Systems, devices, and methods for determining and applying true time delay (TTD) values for compensating for free-space path length differences between a phased array and a reflector in wideband communication are disclosed. TTD values are determined for individual and groups of antenna elements in phased array fed reflector (PAFR) antennas based distances from a focal region of the reflector. The distance from the focal region of the reflector and the offset of the phased array from the reflectors focal plane can be used to determine path length differences. Corresponding TTD values for antenna elements are then determined based on the path length difference associated with the antenna elements. Each antenna element can be coupled to a TTD element to provide the corresponding TTD value to the signals received by and generated by the antenna elements of the phased array. The TTD elements include transverse electromagnetic (TEM) mode mechanisms.

Abstract: Provided is a communication apparatus including a first wireless communication part capable of performing wireless communication according to a first communication scheme and a second wireless communication part capable of performing wireless communication according to a second communication scheme that uses a higher frequency band than the first communication scheme, wherein the second wireless communication part determines a reception timing to receive a beacon transmitted according to the second communication scheme based on a time when a predetermined control signal has been received by the first wireless communication part, and forms, at the determined reception timing, a reception beam having a directionality learned in advance.

Abstract: The application relates to a portable electronic system comprising a first electronic device and an auxiliary device. The first electronic device comprises a first antenna defining a first spatial direction, and a first wireless unit operationally coupled to the first antenna. The auxiliary device comprises a second antenna defining a second spatial direction, the second antenna comprising a multitude of antenna elements, each defining a specific spatial direction, a second wireless unit operationally coupled to the second antenna, a direction detector configured to provide a direction-signal indicating an estimate of a current value of said second spatial direction relative to a reference direction, and a control unit configured to selectively control the connection of said multitude of antenna elements of the second antenna to said second wireless unit based on said direction-signal from the direction detector.

Abstract: An antenna for directional electronic communication and a directional communication system are provided. In one embodiment, the antenna includes: (1) a protective shell, (2) a Luneberg lens located within the protective shell and (3) multiple radio frequency signal conveyors located proximate a portion of the Luneberg lens and configured with the Luneberg lens to transmit radio frequency signals within a defined region or receive radio frequency signals that originate within the defined region.

Abstract: The present invention discloses a wireless electronic device including an adaptive antenna device, a wireless communication module and a processing unit. The adaptive antenna includes a horizontal antenna module arranged to transmit data in a plurality of certain horizontal directions and a vertical antenna module arranged to transmit data in a plurality of certain vertical directions. The processing unit enables the wireless communication module to enable the horizontal antenna module to scan signals along the certain horizontal directions to obtain a horizontal scan result when the wireless electronic device is powered up. The processing unit further determines whether at least one electronic device is available in at least one of the certain horizontal directions according to the horizontal scan result, and enables the horizontal antenna module and the vertical antenna module to directionally transmit data to the electronic device in the certain horizontal directions.

Abstract: A wireless communication device includes: a directional antenna configured to wirelessly receive data from the wireless communication device which is a connection partner; a processing unit configured to perform a first detection process of controlling a directivity direction of the directional antenna and detecting a first direction which is a direction of a radio wave generation source other than the wireless communication device and a second detection process of controlling the directivity direction of the directional antenna and detecting a second direction which is a direction of the wireless communication device; and a control unit configured to set a directivity angle of the directional antenna to a narrower angle when the second detection process is performed by setting the directivity direction of the directional antenna in a vicinity of the first direction.

Abstract: A user-controlled method for modifying the radiation of a wireless device (1) in one or more volumes used for in-house communications, comprising user-selecting this one or more volumes (10, 10?, 10?, 10??, 10IV) while holding the orientation of this wireless device (1) modifying the intensity of this radiation in one or more directions so as to control the radiation in this user-selected one or more volumes (10, 10?, 10?, 10??, 10IV). The invention allows the user to define volumes or regions where radiation should be modified, e.g. reduced, and one or more temporal intervals in which this radiation should be reduced.

Abstract: In one embodiment, a first communication is transmitted from a transmitting node in a network using a mesh routing protocol. The first communication is received at a particular node in the network. Based on the first communication, a directional attribute is computed. Based on the directional attribute, a particular direction is computed. Then, a second communication is transmitted from the particular node using a beam forming technique in the second direction.

Abstract: A reconfigurable antenna element is controlled using a wirelessly powered and wirelessly activated switch, where the antenna element is part of an antenna or antenna array. A control signal for reconfiguring the antenna element is embedded into a wirelessly transmitted data signal for transmission by the antenna.

Abstract: A system and method of training antennas for two devices having heterogeneous antenna configurations in a wireless network is disclosed. The method includes communicating one or more estimation training sequences between two devices via a phased array antenna and a switched array antenna, wherein a beamforming vector of the phased array antenna is switched between phase vectors within a set of weight vectors while the switched array antenna is switched within a plurality of antenna sectors. The method further includes tuning at least one of the phase array and switched array antennas with an antenna parameter selected based at least in part on the one or more estimation training sequences. The method further includes communicating data messages via at least one of the phase array and switched array antennas so tuned.

Abstract: In a communication system including a transmission apparatus which includes a transmission antenna capable of changing a direction of directivity and a reception apparatus which includes a reception antenna capable of changing a direction of directivity, one of the transmission apparatus and the reception apparatus obtains the time of arrival of a radio wave for each of a plurality of pairs of the directions of directivity of the transmission antenna and reception antenna, and extracts a plurality of pairs of the directions of directivity to be used for communication so that the difference between the time of arrival for one of the pairs and the time of arrival for another one of the pairs is not shorter than a predetermined time.

Abstract: Some demonstrative embodiments include devices, systems and/or methods of wireless communication via multiple antenna assemblies. For example, a device may include a wireless communication unit to transmit and receive signals via one or more quasi-omnidirectional antenna assemblies, wherein the wireless communication unit is to transmit, via each quasi-omnidirectional antenna assembly, a plurality of first transmissions, to receive, in response to the first transmissions, a plurality of second transmissions from another device via one or more of the quasi-omnidirectional antenna assemblies, and, based on the second transmissions, to select at least one selected transmit antenna assembly for transmitting to the other device and a selected receive antenna assembly for receiving transmissions from the other device. Other embodiments are described and claimed.

Abstract: This invention discloses directional antenna systems, antenna combining and transmission antenna selection mechanism for wireless communication terminals such mobile handsets, mobile embedded laptops, mobile CPEs (Customer premises equipment), nomadic wireless CPEs, fixed wireless terminals and etc. The disclosed systems and methods only require analog circuitry and compass readings therefore are easy to implement and well fit into the current wireless terminals architectures. The inventive systems and methods resolve the problem that a directional antenna may not receive properly when user turn around and the antenna direction is deviated from transmitter; the inventive systems and methods further reduce the interference caused by omni antenna systems by selecting a directional antenna for transmit.

Abstract: Various embodiments described herein are directed to methods and systems for multibeam adaptive antenna architectures for recovering user signals in the coverage area of the antenna in the presence of interference sources. For example, various embodiments may utilize an architecture comprised of an array of antenna feeds, an RF to baseband conversion subsystem, a bank of digital beamformers, a channelization subsystem, a bank of weighted combiners, and a bank of demodulators for the demodulation and detection of user signals. The multiple beamformers introduce nulls in the direction of interference sources based on distinct adaptive algorithms for providing different antenna beam patterns after adaptation. Various other embodiments may utilize architecture for providing the directions of the interference sources or intentional jammers.

Abstract: A high gain multi-beam aircraft blade antenna of an air-to-ground antenna systems includes multiple columnar matrix antenna elements housed within a blade. The elements are arranged to create independently steerable directed beams. A first independently steerable beam is used to provide communication. A second independently steerable beam is used to simultaneously search other signals.

Abstract: A communication device 1 (transceivers 400) transmits a training signal from its own transmitting antenna while performing beam scanning, and a communication device 2 (transceivers 500) receives this training signal in a state where a quasi-omni pattern is generated in its own receiving antenna. Further, the device 1 transmits a training signal in a state where a quasi-omni pattern is generated in the transmitting antenna, and the device 2 receives this training signal by the receiving antenna while performing beam scanning. The device 1 and 2 detects, from respective reception results, transmitting-antenna-setting candidates of the device 1 and receiving-antenna-setting candidates of the device 2, and determines antenna-setting pairs (combinations of antenna-setting candidates). The above-described processes are also performed for a receiving antenna of the device 1 and a transmitting antenna of the device 2. The device 1 and 2 communicates by using the obtained antenna-setting pairs.

Abstract: An antenna is provided. The antenna includes a first radiator, a second radiator, a current feeder configured to supply power to at least one of the first radiator and the second radiator, and an adjuster configured to adjust transceiving directions of electromagnetic waves transmitted and received to and from the first radiator and the second radiator to be perpendicular to each other.

Abstract: A method includes injecting a reference input signal into each Voltage Controlled Oscillator (VCO) of a number of VCOs forming a coupled VCO array to reduce a level of injection energy required therefor. The reference input signal is configured to control operating frequency of the coupled VCO array. The method also includes utilizing a phase shift circuit: between individual VCOs of the coupled VCO array and/or in a path of injection of the reference input signal into one or more VCO(s) of the individual VCOs, and mixing outputs of the number of VCOs with signals from antenna elements of an antenna array to introduce differential phase shifts in signal paths coupled to the antenna elements during performing beamforming with the antenna array. Further, the method includes reducing a phase-steering requirement of the coupled VCO array during the beamforming based on the utilization of the phase shift circuit.

Abstract: A method includes separating phase of Local Oscillator (LO) signals generated by individual Voltage Controlled Oscillators (VCOs) of a coupled VCO array through varying voltage levels of voltage control inputs thereto. The method also includes coupling the individual VCOs of the coupled VCO array to one another in a closed, circular configuration to increase phase difference between the phase separated LO signals generated by the individual VCOs compared to a linear configuration of the coupled VCO array. Further, the method includes mixing outputs of the individual VCOs of the circular coupled VCO array with signals from antenna elements of an antenna array to introduce differential phase shifts in signal paths coupled to the antenna elements during performing beamforming with the antenna array.

Abstract: A novel wide null forming system achieves both wide bandwidth and beam width null through employing an antenna array to receive and transmit signals to which a complex null weight vector, calculated by perturbation program, is applied. The novel wide null forming system includes a multiple-element antenna array for receiving or transmitting signals. Multiple conditioning units matching the number of elements is present to condition the signals for proper reception and analysis, after which a series of complex multiplier processors adds complex weights. After being weighted each constituent beam is combined in an adding processor to form one composite beam for use by the user.

Abstract: A method includes receiving a remote transmitter signal at an antenna array including a number of antenna elements, mixing the received signal with in-phase and quadrature-phase Local Oscillator (LO) signals from Voltage Controlled Oscillators (VCOs) of a coupled VCO array, and configuring each Phase Locked Loop (PLL) of a number of PLLs to receive an in-phase output of the mixing corresponding to a VCO and a quadrature-phase output of the mixing corresponding to another VCO adjacent to the VCO as inputs thereto. The method also includes feeding back an output of the each PLL to the VCO, driving the in-phase and the quadrature-phase outputs of the mixing from a transmit modulator, and transmitting, in a direction of the remote transmitter, an antenna array signal based on the driving. Further, the method includes sensing a servoed state related to LO phase relationships and holding thereof during the transmission of the signal.

Abstract: A method includes pointing a receive beam of a retro-directive antenna array attracted to a jammer circuit instead of a remote transmitter away from the jammer circuit toward the remote transmitter by a first angle based on coarse manual means therefor implemented in electronic circuitry associated with the retro-directive antenna array. The electronic circuitry includes a number of mixers, each of which is configured to mix a Local Oscillator (LO) signal generated from a Voltage Controlled Oscillator (VCO) with a signal received at an antenna element of the retro-directive antenna array. The method also includes automatically fine pointing the receive beam toward the remote transmitter by a second angle following the coarse pointing thereof by the first angle such that the receive beam exactly points to, and tracks, the remote transmitter. The automatic fine pointing is effected through a secondary automatic servo loop implemented in the electronic circuitry.

Abstract: A method includes implementing a coupled Voltage Controlled Oscillator (VCO) array with a number of VCOs, and mixing Local Oscillator (LO) signals generated through the number of VCOs of the coupled VCO array with signals from antenna elements of an antenna array to introduce differential phase shifts in signal paths coupled to the antenna elements during performing beamforming with the antenna array. The method also includes accommodating differential coupling between the VCOs to improve immunity to noise and/or interference during the beamforming compared to the VCOs accommodating single-ended coupling therebetween.

Abstract: A method includes separating phase of Local Oscillator (LO) signals generated by individual Voltage Controlled Oscillators (VCOs) of a coupled VCO array through varying voltage levels of voltage control inputs thereto. The method also includes frequency multiplying an output of each individual VCO of the coupled VCO array to increase a range of phase differences between the phase separated LO signals generated by the individual VCOs. Further, the method includes mixing the frequency multiplied outputs of the individual VCOs with signals from antenna elements of an antenna array to introduce differential phase shifts in signal paths coupled to the antenna elements during performing beamforming with the antenna array.

Abstract: Systems and methods for providing a MIMO capable antenna with unique properties are provided herein. In some embodiments, a 4×4 MIMO capable antenna is provided with unique properties. Circular polarization from the antennas ensures that both vertical and horizontal polarizations are energized to the full extent provided by local regulations. A system includes a radio and a plurality of antennas coupled to the radio, the plurality of antennas servicing a broadcast area that has a 360 degree coverage area. Each of the plurality of antennas transmits and receives in an isolated sub-sector of the 360 degree coverage area.

Abstract: An active retrodirective wireless communication apparatus is provided. The active retrodirective wireless communication apparatus can extend a communication range by enabling communication with a wide area user who is not able to communicate via an omnidirectional antenna, by alternately operating a plurality of active retrodirective antennas during a time interval for performing omnidirectional communication among a plurality of local area users, and a time interval for performing directional communication to a specific wide area user.

Abstract: The present invention discloses a communication antenna automatic orientation apparatus and method, wherein the apparatus comprises: a target base station geographical storage for storing the corresponding relation between the spatial location information on the air lane and the identifier of a target base station; a sensor for confirming current spatial location information of the aircraft; an aircraft spatial orientation sensor for confirming a current spatial orientation of the aircraft; a master controller for confirming a target direction of a directional antenna according to the current spatial location information, the corresponding relation and the current spatial orientation and sending an instruction carrying the target direction; an automatic antenna directional system for receiving the instruction and driving the directional antenna according to the target direction so as to enable the directional antenna to receive a signal from a ground base station in the target direction; a wide aperture anten

Abstract: 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. Many of the “other” radios include technologies that support location based services, including GPS, Wi-Fi and cellular communications. One or more non-mmWave in one device is used to provide relative location information regarding the other device with which the mmWave communication link is to be established. The relative location information is used to derive a direction for communication, and to compute beamforming parameters, in a limited set of transmit/receive sectors where the destination device is likely to be found, in order to streamline the beamforming process.

Abstract: Methods and systems for establishing a non-line of sight millimeter wave connection that include a transmitter unit having beam-steering capability, a receiver unit having beam-steering capability, and a reflecting unit in a position having a line-of-sight path to the transmitter unit and the receiver unit. The reflecting unit includes an attachment mechanism configured to attach to a mounting point on an object or surface, a reflecting surface that is reflective to millimeter-wave radiation, and an adjustable pivot connected between the attachment mechanism and the reflecting surface configured to permit directional positioning of the reflecting surface relative to the attachment mechanism.

Abstract: Angle of arrival and/or range estimation within a wireless communication device. Appropriate processing of communications received by a wireless communication device is performed to determine the angle of arrival of the communication (e.g., with respect to some coordinate basis of the wireless communication device). Also, appropriate processing of the communications may be performed in accordance with range estimation as performed by the wireless communication device to determine the distance between the transmitting and receiving wireless communication devices. There are two separate modes of packet processing operations that may be performed: (1) when contents of the received packet are known, and (2) when contents of the received packet are unknown. The wireless communication device includes a number of antenna, and a switching mechanism switches from among the various antennae capitalizing on the spatial diversity of the antennae to generate a multi-antenna signal.

Abstract: The invention relates to a method for digital and directional data transmission between aircraft and ground stations. In this arrangement data is exchanged digitally and directly, in other words directly by means of directional antennae, between the aircraft and the ground stations. Furthermore, transmission lobes are adapted during flight, and the directional antennae on the aircraft only illuminate regions on the ground that are located at a minimum distance across the flight path of the aircraft.

Abstract: Embodiments disclosed herein relate to methods and systems for providing improved position-location (e.g., time-of-arrival) measurement and enhanced position location in wireless communication systems. In an embodiment, an access point may replace information (e.g., data) transmission by a “known” transmission (or “reference transmission”) at a predetermined time known to access terminals in the corresponding sectors. The access terminals may use the received reference transmission to perform a position-location measurement, and report back the measured information. The access point may also send a reference transmission on demand, e.g., in response to a request from an access terminal in need for a location-based service.

Abstract: One or more input signals are used to generate a Pseudo noise generator and re-inject the signal to obtain a more efficient method of control of a receiver using adaptive antenna array technology. The antenna array automatically adjusts its direction to the optimum using information obtained from the input signal by the receiving antenna elements. The input signals may be stored in memory for retrieval, comparison and then used to optimize reception. The difference between the outputs of the memorized signals and the reference signal is used as an error signal.

Abstract: 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. The random perturbation-based beamforming method and apparatus of the present disclosure is capable of configuring the beamforming coefficient appropriate for the normal cellular environment using a plurality analog array antenna without channel estimation overhead.

Abstract: Methods and systems are provided for relocatable wireless communication links to locations that may present accessibility problems using, for example, small unmanned aerial systems (sUAS). An sUAS implemented as an easy-to-operate, small vertical take-off and landing (VTOL) aircraft with hovering capability for holding station position may provide an extended range, highly secure, high data rate, point-to-point wireless communication link (also referred to as a “crosslink”) that is easily relocatable with very fast set-up and relocating times. A transceiver using beam forming and power combining techniques enables a very high gain antenna array with very narrow beam width and superb pointing accuracy. The aircraft includes a control system enabling three-dimensional pointing and sustaining directivity of the beam independently of flight path of the aircraft.