Abstract: A communication network includes nodes configured into a wireless ring network operating at one or more millimeter-wave frequencies. At least one of the nodes is configured to send and receive millimeter-wave wireless signals through an obstruction. In accordance with an exemplary embodiment of the network, one or more of the nodes may include small, phased-array antennas and transceivers, configured with radio electronics to mitigate the path loss through certain obstructions, such as walls, floors, ceilings, and other barriers within buildings, as well as attenuation from free-space path-loss, including moisture in air (humidity). The network may include multiple pairs of nodes to form one or more wireless communication paths through various obstructions. This may allow a high-speed, wireless, multi-ring network to be established, for example, within a structure, such as a building, without requiring additional cabling or wiring.

Abstract: Methods, systems, computer-readable media, and apparatuses for providing service to access nodes are presented. In some embodiments, a computing device may generate a geographical coverage map comprising a plurality of wireless access nodes respectively at a plurality of geographic locations and a wireless coverage range for each wireless access node. The computing device may receive from at least one wireless access node of the plurality of wireless access nodes an indication that the at least one wireless access node detected a first wireless access node of the plurality of wireless access nodes. The computing device may refine a first coverage range of the first wireless access node based on a respective geographic location of the at least one wireless access node. In some embodiments, a first wireless access node may receive and forward join emergency mesh (JEM) messages to establish a wireless network.

Abstract: A radio-frequency (RF) apparatus includes a wideband receive (RX) impedance matching circuit to provide a received differential RF signal to RF receive circuitry. The wideband RX impedance matching circuit includes first and second inductors to receive the differential RF signal. The wideband RX impedance matching circuit further includes a third inductor coupled across an input o the RF receive circuitry. The third inductor performs the functionality of a capacitor having a negative capacitance value.

Abstract: To suitably perform a random access procedure (e.g., random access preamble transmission) in future radio communication systems, a user terminal for communicating with a cell where predetermined numerology is applied has a control section that controls a random access procedure in the cell, and a transmission section that transmits a random access preamble with a predetermined subcarrier spacing applied among random access preambles for supporting a plurality of subcarrier spacings.

Abstract: An active matching network for impedance matching to a miniature antenna, comprising a cross-coupled transistor pair, where each transistor has an emitter, base and collector, the emitter of a first transistor forms an input terminal, the emitter of a second transistor forms on output terminal, the collector of the first transistor coupled to the base of the second transistor, the collector of the second transistor coupled to the base of the first transistor, and a matching circuit coupled between the collectors of the first and second transistors. The matching network is configured to match an impendence near resonance of the high Q miniature antenna to an input impedance using a complex negative impedance comprising resistance, inductance and capacitance.

Abstract: An acoustic resonator structure is provided. The acoustic resonator structure includes an acoustic resonator configured to resonate in a first frequency to pass a radio frequency (RF) signal. However, the acoustic resonator may create an electrical capacitance outside the first frequency, which can cause the acoustic resonator to resonate at a second frequency in parallel to the first frequency, thus compromising performance of the acoustic resonator. In this regard, a passive acoustic circuit is provided in parallel to the acoustic resonator in the acoustic resonator structure. The passive acoustic circuit can be configured to resonate in the second frequency to cancel the electrical capacitance created by the acoustic resonator. As such, it may be possible to improve performance of the acoustic resonator without significantly increasing complexity and footprint of the acoustic resonator structure.

Abstract: Described are methods for interference detection and management in a millimeter wave communications system. A V2X communications system may support interference management procedures that comprise scheduling a system wide training interval in a transmission timeslot, suspending traffic transmissions on a link in the communications system during the training interval to perform training on the link, and resuming traffic transmissions on the link if interference is not detected during the training interval. Interference management procedures may also include receiving at a node, unique parameters transmitted from another node in a communication system during a discovery stage, determining whether interference will occur at the node based on the received unique parameters, and suspending transmissions to and from the node if it is determined interference will occur at the node.

Abstract: Disclosed is a method and apparatus for transmitting and receiving a synchronization signal and a transmission system. In the method, a transmitting node determines a frequency band range in which a carrier is located, and configures or assumes synchronization channel information on the carrier according to the frequency band range, where the synchronization channel information includes at least one of: a subcarrier spacing or orthogonal frequency division multiplexing (OFDM) symbol information of a synchronization channel; and the transmitting node transmits the synchronization signal using the synchronization channel information.

Abstract: Base station antennas include a first array of radiating elements that is coupled to a first RF port through a first feed network, a second array of radiating elements that is coupled to a second RF port through a second feed network, and first and second circuit elements. The first circuit element has a first port coupled to the first feed network, a second port coupled to a first port of the second circuit element and a third port coupled to a first radiating element of the first array of radiating elements. The second circuit element has a second port coupled to a first radiating element of the second array of radiating elements and a third port coupled to the second feed network.

Abstract: A method for modifying an electromagnetic field distribution of a node in a telecommunication network, comprising determining the presence of an entity within a region of interest, and regulating transmission power to the region of interest from the node by varying a spatio-temporal transmission profile of the node in response to determining the presence of the entity in the region for a period of time longer than a predetermined threshold value, wherein modifying the electromagnetic field distribution of the node comprises modifying an average electromagnetic field distribution of said node.

Abstract: An electronic device is provided and includes a first housing forming a portion of an outside surface of the electronic device, a second housing coupled with the first housing and forming another portion of the outside surface of the electronic device, an antenna formed in at least a portion of the second housing, a connector including one or more connection pins for connection with an external device, at least a portion of an outside surface of the connector being formed of a conductive member, an adjusting circuit electrically connected with, at least, the portion of the outside surface of the connector formed of the conductive member, wherein an impedance of the adjusting circuit is variable. The electronic device may further include a processor configured to vary the impedance of the adjusting circuit based on a signal to be output through the antenna, and output the signal through the antenna, with the impedance of the adjusting circuit being varied.

Abstract: Wireless devices, and particularly mobile devices such as cellphones, PDAs, computers, navigation devices, etc., as well as other devices which transmit or receive data or other signals at multiple frequency bands utilize at least one steerable antenna, and may be configured to transmit and receive using plurality of different bands (e.g., GSM cellular communication band; Bluetooth short range communication band; ultrawideband (UWB) communications, etc.). These wireless devices can determine zones or spans of directions in which to avoid radiating beams at 10 GHz or above, and can receive signals on either the steerable antenna or another antenna. In addition, the wireless devices can be configured for radiating in a pattern that is different from the receiving pattern.

Abstract: A UAV system includes a remote controller including two first antennas and a UAV including two second antennas arranged at two landing stands of the UAV, respectively. The two first antennas and the two second antennas are configured to establish a 2×2 MIMO communication link. The remote controller is configured to transmit current terminal position information of the remote controller to the UAV via the 2×2 MIMO communication link. The UAV determines current remote controller relative position information of the remote controller relative to the UAV according to the current terminal position information and current UAV position information acquired via a position sensor, and controls communication between the UAV and the remote controller according to the current remote controller relative position information.

Abstract: An electronic device includes a housing, a first antenna included in a first region of the housing, a second antenna included in a second region of the housing, an antenna structure that is disposed within the housing, a coupler that obtains an impedance of each of the antennas and the antenna structure, a memory that stores a table in which the impedances of each of the antennas and the antenna structure are matched to a location or a contact of an external object, and a processor, and the processor obtains the impedances of each of the antennas and the antenna structure from the coupler when the external object approaches the electronic device, obtains the location or the contact of the external object based on the obtained impedances and the table, and transceives a signal through the antenna structure in a direction where the external object is absent.

Abstract: A positioning apparatus, including: positioning calculation devices for positioning for a plural antenna, to acquire positioning results indicating the antennas positions and accuracy indices indicating accuracies of the positions, the antennas receiving GPS satellites signals and having a known distance between each antennas; and a determination device including: a determination unit performing first determination whether accuracies indicated by the accuracy indices of two antennas out of the plural antenna is higher than a first threshold and second determination whether a difference between a measured distance between the two antennas based on a difference between positioning results of the antennas and an actual distance therebetween is smaller than a second threshold, to thereby acquire a reliability index (RI) and a final positioning result (FPR) based on the two determinations; and an output signal generation unit for generating positioning information for controlling a human interface (HI) to notify a

Abstract: Disclosed is a method and apparatus for transmitting and receiving a synchronization signal and a transmission system. In the method, a transmitting node determines a frequency band range in which a carrier is located, and configures or assumes synchronization channel information on the carrier according to the frequency band range, where the synchronization channel information includes at least one of: a subcarrier spacing or orthogonal frequency division multiplexing (OFDM) symbol information of a synchronization channel; and the transmitting node transmits the synchronization signal using the synchronization channel information.

Abstract: A wireless transceiver device includes an antenna unit for receiving a first RF signal or transmitting a second RF signal. A first matching unit is connected to the antenna unit and a receiving circuit. The first matching unit and the receiving circuit form a first signal receiving channel for receiving the first RF signal when the first RF signal is a high/low gain RF signal. A second matching unit is connected to the antenna unit and a transmitting circuit. The second matching unit and the transmitting circuit form a signal transmitting channel for transmitting the second RF signal. A bypass coupling circuit is connected to the receiving circuit and the second matching unit. The second matching unit, the bypass coupling circuit, and the receiving circuit form a second signal receiving channel for receiving the first RF signal when the first RF signal is a middle gain RF signal.

Abstract: Systems and methods are disclosed, and one includes receiving a configuration specification data, including a cell floorplan data identifying a plurality of rectangular cells, and indicating a cell width and a cell length of each, in combination with determining, based at least in part on the configuration specification data, a spot beam pattern that provides a plurality of rectangular cell coverage regions, having the cell length and width.

Abstract: An antenna device includes a first antenna, a second antenna, a multiplexer, and a controller. The first antenna is arranged on a first plane with a plurality of first feeding ports on the body of the first antenna to transmit or receive an electromagnetic signal on a first frequency. The second antenna, which is arranged on a second plane, includes at least four second feeding ports to transmit or receive an electromagnetic signal on a second frequency. The multiplexer has an input port coupled to the signal source, and output ports coupled to the plurality of first feeding ports and the four second feeding ports. The controller controls the multiplexer to transmit a feeding signal from the signal source to at least one of the first feeding ports and at least one of the four second feeding ports, to fine-tune the beam of the antenna device.

Abstract: Methods and apparatuses are provided for controlling power transmission in a power transmitter. Voltage information including a minimum voltage, a maximum voltage, and a first voltage, is received from each of a plurality of power receivers. Power is transmitted to the plurality of power receivers based on the voltage information. A respective report about a power reception condition is received from each of the plurality of power receivers while transmitting the power. Each respective report includes a measured voltage at a corresponding power receiver of the plurality of power receivers. A power receiver is selected from among the plurality of power receivers based on the received reports. An amount of the power is adjusted by reducing a difference between a first voltage of the selected power receiver and a measured voltage of the selected power receiver.

Abstract: A distributed antenna system for transceiving radio signals in several frequency ranges is described. The system comprises a control unit with at least one first port for forwarding first radio signals in a first frequency range and one second port for forwarding second radio signals in a second frequency range. A plurality of remote units is connected to the control unit via a distributor network. The remote units have first antenna elements for transceiving the radio signals in the first frequency range and second antenna elements for transceiving the radio signals in the second frequency range. The control unit comprises a modulator for converting the second radio signals to a further frequency range and the remote units have a demodulator for converting the second radio signals from the further frequency range to a different frequency range.

Abstract: Provided are a transparent fingerprint recognition sensor and a touch screen device including the transparent fingerprint recognition sensor. The transparent fingerprint recognition sensor includes: a substrate; a plurality of first electrodes disposed on the substrate in a sensing area; an insulating layer disposed on the substrate and covering the plurality of first electrodes; a plurality of second electrodes disposed within the insulating layer in the sensing area; a plurality of first signal lines disposed within the insulating layer in the bezel area; and a plurality of second signal lines disposed on a top surface of the insulating layer, in the bezel area.

Abstract: A multiplexer includes filters on one principal surface of a mounting substrate and having mutually different frequency bands, and an inductance element which is incorporated in the mounting substrate and one end of which is connected to one end of the filter. The other end of the inductance element and one end of each of the filters, are connected to each other at a common connection point. The inductance element is defined by spiral wiring conductors disposed in first and second wiring layers provided in an inner layer of the mounting substrate. The mounting substrate includes third and fourth wiring layers which are adjacent to the first and second wiring layers, and in which no ground pattern is provided in a portion corresponding to a formation region of the inductance element.

Abstract: Systems and methods are disclosed, and one includes receiving a configuration specification data, including a cell floorplan data identifying a plurality of rectangular cells, and indicating a cell width and a cell length of each, in combination with determining, based at least in part on the configuration specification data, a spot beam pattern that provides a plurality of rectangular cell coverage regions, having the cell length and width.

Abstract: A multiplexer includes filters on one principal surface of a mounting substrate and having mutually different frequency bands, and an inductance element which is incorporated in the mounting substrate and one end of which is connected to one end of the filter. The other end of the inductance element and one end of each of the filters, are connected to each other at a common connection point. The inductance element is defined by spiral wiring conductors disposed in first and second wiring layers provided in an inner layer of the mounting substrate. The mounting substrate includes third and fourth wiring layers which are adjacent to the first and second wiring layers, and in which no ground pattern is provided in a portion corresponding to a formation region of the inductance element.

Abstract: A microwave modulation device includes a first radiator; a second radiator disposed on the first radiator; a third radiator disposed on the second radiator; a support structure disposed between the first radiator and the second radiator; and a modulation structure disposed between the second radiator and the third radiator. A microwave-transmission layer is located among the space defined by the first radiator, the second radiator, and the support structure. The microwave-transmission layer is gas, substantially vacuum, liquid or insulating material.

Abstract: Systems and methods are described herein for sending notifications associated with different use or active modes of a mobile device, such as a smart phone, tablet, and so on. For example, a mobile device may be in a busy mode, where a user associated with the mobile device is busy on a call, and/or in an entertainment mode (or other non-communication mode), where the user is utilizing entertainment functions provided by the mobile device (e.g., watching a video, playing a video game, listening to a podcast, and so on).

Abstract: A multiplexer includes filters on one principal surface of a mounting substrate and having mutually different frequency bands, and an inductance element which is incorporated in the mounting substrate and one end of which is connected to one end of the filter. The other end of the inductance element and one end of each of the filters, are connected to each other at a common connection point. The inductance element is defined by spiral wiring conductors disposed in first and second wiring layers provided in an inner layer of the mounting substrate. The mounting substrate includes third and fourth wiring layers which are adjacent to the first and second wiring layers, and in which no ground pattern is provided in a portion corresponding to a formation region of the inductance element.

Abstract: A radio-frequency power transmitter. The radio-frequency power transmitter includes an array of patch antennas, an array of phase modulators, each phase modulator having an input port and associated with one or more of the patch antennas, a local oscillator that provides an oscillatory signal to the input port of each of the phase modulators, an array of amplifiers, each amplifier receiving an input from one of the phase modulators, and a microprocessor configured to interface with the array of phase modulators and control a holistic radiative power transmission vector pattern generated by the radio-frequency power transmitter.

Abstract: Provided is a touch screen and a terminal. The touch screen includes a touch layer, a conducting layer and a substrate layer which are laminated and matched in sequence, wherein an antenna radiating body, and an antenna signal line and a ground feeder line which are connected with the antenna radiating body are arranged on the conducting layer. The terminal includes the touch screen.

Abstract: According to one embodiment of the present specification, a user terminal is provided. The user terminal can comprise: a tunable antenna capable of adjusting a band; a diplexer connected to the tunable antenna to synthesize and separate sub-carriers; one or more antenna switches connected to the diplexer to synthesize and separate low-band sub-carriers and middle-band and high-band sub-carriers; and a sub-carrier processing unit connected to the one or more antenna switches to synthesize and separate a plurality of low-band sub-carriers, a plurality of middle-band sub-carriers and a plurality of high-band sub-carriers. A low-noise amplifier can be connected to the sub-carrier processing unit in order to prevent an increase in a reception sensitivity loss and a noise index occurring on a reception path of the diplexer, the one or more antenna switches and the sub-carrier processing unit.

Abstract: A mobile communication device and a radiated power adjusting method thereof are provided. The mobile communication device includes an antenna, a signal measurement module, a proximity sensing module and a controlling module. The antenna receives a radio-frequency signal, and the signal measurement module is coupled to the antenna and measures a signal parameter of the radio-frequency signal. The proximity sensing module is switched between an activation mode and an original detection mode according to existence of an object, wherein a sensing conductor is configured adjacent to an adjusted antenna. The controlling module is coupled to the signal measurement module and the proximity sensing module, and the controlling module adjusts the radiated power of the adjusted antenna. When the signal parameter decreases more than a threshold value and the proximity sensing module is in the activation mode, the controlling module reduces the radiated power of the adjusted antenna.

Abstract: In the field of satellite communication systems, a method is provided for managing communication resources allocated by central control equipment to the various terminal communication devices within a global satellite communication system. In particular, the management of communication resources by way of the monitoring of the equivalent isotropically radiated power transmitted by a terminal of the satellite communication system is provided.

Abstract: A method performed in an electronic device is provided. The method includes: collecting operation information on at least one of a data communication operation, a paging operation, and a voice communication operation of a first antenna, a second antenna, or a third antenna; determining at least one antenna to be used of the first antenna, the second antenna, and third antenna based on at least part of the collected operation information; and performing communication by using the determined antenna.

Abstract: Aspects for balancing power output on the plurality of antennas for the transmission of a transport block are disclosed. In accordance with the present disclosure, a transmitter may balance the power output on a plurality of transmit antennas in a multiple-input multiple-output (MIMO) system by having a precoded data block bypass a virtual antenna mapping of the overhead channels (e.g., control channels). Additionally or alternatively, the transmitter may balance the power output on the plurality of transmit antennas by applying an inverse mapping parameter during the precoding process to the transport block to generate a plurality of inverse mapped precoded data blocks. In some examples, the inverse mapping parameter may be an inverse of the mapping parameter. Thus, in accordance with the present disclosure, precoding a transport block may include selecting a precoding weight for each of the plurality of antennas from an unrestricted precoding weight set.

Abstract: A method for assigning precoding vectors in a mobile cellular network as well as a base station. The base station provides a code book comprising indexed precoding vectors to mobile stations associated with the base station via a downlink channel. A mobile station selects indices of preferred precoding vectors from the code book and reports the indices to the base station via an uplink channel. The mobile selects indices of preferred companion precoding vectors from the code book that shall preferably be used by the base station for other mobile stations served by the base station on the same time/frequency resource, and reports the indices associated with the preferred companion precoding vectors to the base station via the uplink channel. For each mobile station, the base station determines a precoding vector based on the reported indices of the preferred precoding vectors and the reported indices of the preferred companion precoding vectors.

Abstract: In one embodiment, the present disclosure provides a method and apparatus for spatially filtering inter-cell co-channel interference in the elevation plane, which in turn will improve network spectral efficiency.

Abstract: A cellular communication system and method is described where a low-cost repeater is used to reduce the transmit power of a cell phone. The cell phone transmits a low-power modulated carrier signal to a nearby repeater. The repeater amplifies the signal and transmits it to a cellular base-station. The reduction of cell phone transmit power lowers the exposure of humans to RF radiation and increases the battery life of the cell phone.

Abstract: A method is configured to automatically inspect and trim a ceramic patch antenna which has a radiation metal surface. Firstly, an inspection apparatus electrically connected to a radio frequency component testing fixture is arranged. The inspection apparatus is inputted standard parameters of electrical characteristics of the ceramic patch antenna. Then, the ceramic patch antenna is arranged on the radio frequency component testing fixture. The inspection apparatus is configured to measure electrical characteristics of the ceramic patch antenna and to judge whether the electrical characteristics of the ceramic patch antenna are the same as the standard parameters or not. The inspection apparatus is configured to drive a trimming machine for trimming the radiation metal surface of the ceramic patch antenna if the electrical characteristics of the ceramic patch antenna are different from the stand parameters.

Abstract: A protection device for electrically insulating an antenna from a signal receiving device while transferring RF signals, and a system including the same are disclosed. In an embodiment, the protection device includes a first waveguide in signal communication and electrical communication with the antenna; and a second waveguide in signal communication and electrical communication with the signal receiving device. The first waveguide and the second waveguide are arranged in an end to end coaxial relationship facing one another, and the first waveguide and the second waveguide are electrically insulated from one another, such that a high voltage from accidental contact of the antenna with a power line cannot pass from the antenna to the signal receiving device. RF signals pass from the antenna to the signal receiving device through the protection device with minimal signal loss.

Abstract: An object of the present invention is to provide a planar type antenna unit and a planar type wireless device capable of reducing a projecting area of the wireless device. To achieve the above object, the planar type wireless device of the present invention is provided with a grounded planar antenna 10 which includes a radiating element 11 and a ground plate 12, a thin-film battery 20 which includes a positive-electrode current collector 21 opposing a negative-electrode current collector which is formed by the ground plate 12, and a transmitter/receiver IC arranged at a power feeding point 13 of the grounded planar antenna 10 and including a transmitter-receiver circuit which receives power from the negative-electrode current collector of the thin-film battery 20 and the positive-electrode current collector 21 of the thin-film battery 20, and transmits and receives signals by operating the radiating element 11 of the grounded planar antenna 10.

Abstract: An antenna to transmit a wave signal may include a transmission line to transmit the wave signal, a plurality of first transmitting conductors connected to the transmission line. The first transmitting conductors may be substantially perpendicular to the transmission line and the first transmitting conductors may be substantially the same length.

Abstract: A transmission device attached to a fender and for transmitting information via radio waves includes a conductor plate disposed between the water surface and an antenna within a transmission unit of the transmission device. Radio waves that reach a reception antenna by reflecting off the water surface, an object floating on water, or the bottom of water are reflected by the conductor plate.

Abstract: A near field communications (NFC) device is disclosed that detects a presence of another NFC capable device within its magnetic field. The NFC device observes signal metrics of an observed detection signal at various intervals. The NFC device determines a statistical relationship based upon at least two first signal metrics from among the signal metrics to determine an estimate of at least one second signal metric from among the signal metrics. The NFC device compares a difference between the estimate of the signal metric of the at least one second signal metric and the at least one second signal metric. The NFC capable device makes a first determination that another NFC device is present within its magnetic field when the difference indicates that the at least one second signal metric is non-linearly related to the at least two first signal metrics.

Abstract: An antenna module embeds front end circuitry with an antenna. Adaptive matching circuitry external to the antenna module is electrically connected between the embedded front end circuitry and the embedded antenna.

Abstract: In a wireless communication device (10), adjustment means (matching controlling means (152)) changes a reactance of a matching section (17), determination means (calculation means (151), matching controlling means (152)) determines whether a resonance frequency of an antenna (11) exists on a side higher than or lower than the operation frequency of the antenna (11) on the basis of a change in an intensity of a signal, which change is caused by a change in the reactance and is detected by a signal intensity detection section (14), and the adjustment means adjusts the reactance so that the resonance frequency is closer to the operation frequency on the basis of a result of determination of the determination means.

Abstract: A method and system provides a multiple input multiple output (MIMO) antenna arrangement in a wireless communication device. A first antenna element and a second antenna element co-located within a same antenna volume are respectively coupled to first and second antenna feeds proximate to a base perimeter segment of a device chassis. The first antenna feed is at a pre-calculated distance from the second antenna feed. The second antenna element, a first MIMO antenna, is coupled to an antenna ground positioned proximate to the first antenna feed and at a pre-determined distance from the second antenna feed. A third antenna element operating as a second MIMO antenna is placed proximate to a top perimeter segment of the device chassis. The antenna arrangement achieves (a) low correlation between the MIMO antennas and (b) an acceptable or pre-determined level of antenna isolation between the first antenna element and the second antenna element.

Abstract: According to an embodiment, a chip card communication arrangement is provided comprising a matching network and a chip card communication circuit comprising at least one matching network terminal, a receiver coupled to the matching network via the at least one matching network terminal and an active transmitter coupled to the matching network via the at least one matching network terminal.

Abstract: An apparatus includes an antenna for transmitting RF radiation and being structured to enable the distribution of RF energy emitted therefrom to be varied in the vertical plane. The apparatus comprises a generator for generating an RF signal and to pass the signal to the antenna, and a controller arranged to control the distribution of RF energy emitted from the antenna in the vertical plane in response to positional information about an object.

Abstract: A mobile terminal is provided that includes front and rear cases, an intermediate case between the front and rear cases, and a printed circuit board between the intermediate cases and at least one of the front and rear cases. A shielding member having a first width, length and thickness, and being formed of a metal. Non-conductive material may have a second thickness attached to at least two edges of the shielding member.