Abstract: The present invention provides a base station antenna, including power dividers, network calibration modules, and connectors. The base station antenna further includes at least two phase shifters. At least one phase shifter is integrated with a combiner, the connectors are connected to the network calibration modules, and the network calibration modules are connected to the phase shifters. The one phase shifter integrated with the combiner is connected to the power divider, and at least one output port of the at least one other phase shifter is connected to the phase shifter integrated with the combiner. The base station antenna has an integrated design of phase shifters and combiners, which allows cables in different bands to be shared, reduces a quantity of used cables, is easy to implement in an actual layout and production, facilitates the layout and heat dissipation on the whole, satisfies user requirements, and reduces costs.

Abstract: A system for tracking an object includes a first tracking device aimed so that a first field of view of the first tracking device covers at least a portion of a target volume into which an object is to be launched from a launch location and a processor receiving data from the tracking device and identifying from the data the velocity of the object over time, the processor identifying, based on changes in the velocity of the object over time, a first portion of a path of the object during which the object was in one of a bouncing state and a sliding state.

Abstract: A system includes a plurality of satellites including respective antennas and circuitry. The satellites form a satellite constellation and revolve around a rotating astronomical object from which a source radiates interference toward a target satellite for at least some period of time as the target satellite revolves in a target orbit. The satellites' respective antennas may capture the interference when the satellite constellation is substantially in-line between the source and target satellite, and their circuitry may generate respective measurements based thereon. The circuitry may geolocate or cause transmission of the respective measurements for geolocation of the source based on the respective measurements to thereby identify a location of the source on the astronomical object.

Abstract: A system for locating a mobile device is disclosed. In one embodiment, the system includes a mobile device having a processor and a receiver, and at least three transceiver devices forming a network of transceiver devices. The mobile device and transceivers can transmit a request (REQ) packet by the mobile device; receive the REQ packet by the at least three transceiver devices; transmit, by a first one of the at least three transceiver devices receiving the REQ packet, a response (RSP) packet; and receive by at least some of the at least three transceiver devices the REQ and the RSP packet. The at least three transceiver devices that receive both the REQ and the RSP packet, the system determines a difference in arrival time between receiving the REQ packet and the RSP packet. The system can determine the location of the mobile device based on determined differences in arrival time.

Abstract: Generating signals from non-GNSS transmitters, and processing the signals using a GNSS positioning module. Systems and methods identify a chipping rate, identify a PN code length, generate a PN code that has a length equal to the identified PN code length, generate a positioning signal using the identified chipping rate and the generated PN code, and transmit the positioning signal from the transmitter. The PN code length may produce, at the identified chipping rate, a PN code duration that is equal to or is a multiple of a PN code duration used in a GNSS system, the identified chipping rate may be equal to or a multiple of a chipping rate used in a GNSS system, and the identified PN code length may be equal to or a multiple of a PN code length used in a GNSS system.

Abstract: A method for finding a position of an object using a MIMO FMCW radar. A ramp-shaped frequency-modulated radar signal is transmitted as a sequence of time-delayed successive ramps. A switch network is controlled to provide a corresponding switching state for each of the successive ramps. A different selection of antenna elements is used for transmission of each respective ramp. Radar echoes reflected by radar targets are mixed with the transmitted signal and are down-converted. Baseband signals resulting therefrom are transformed into spectra. Each baseband signal is separately subjected to a two-dimensional Fourier transform. A window function is applied to each of the baseband signals prior to the transform being carried out over a ramp index in a second dimension. A different window function is applied for each of the switching states. The spectra are subjected to a frequency-dependent phase correction which compensates for time offsets of the ramps.

Abstract: Methods for radar altimeter integrity monitoring are provided.

Abstract: Methods and systems for performing Precise Point Positioning (PPP) ambiguity resolution using Global Navigation Satellite Systems (GNSS) triple frequency signals are described. In an embodiment, the method may include computing, using a processing device, an L1/L2 or L2/L5 wide-lane fractional bias model, in which the bias is split into one direction-independent and three direction-dependent bias components for each satellite. Additionally, the method may include resolving, using the processing device, PPP ambiguity using triple-frequency signals. The method may also include applying, using the processing device, a carrier smooth carrier function to resolve measurement noise. Resolving the PPP ambiguity may include fixing the L2/L5 wide-lane ambiguities in a geometry-free function. Additionally, resolving the PPP ambiguity may include fixing the L1/L2 wide-lane ambiguities in a geometry-based function.

Abstract: Geofence crossing-based control systems and techniques are described herein. For example, a geofence crossing control technique may include receiving a location signal indicative of a range of locations in which a mobile computing device is located; receiving a velocity signal indicative of a speed and direction of the mobile computing device; generating, for each of a plurality of candidate geofence crossing times, a performance indicator based on the location signal, the velocity signal, and a boundary of the geofence; selecting a geofence crossing time from the plurality of candidate geofence crossing times based on the performance indicators; and transmitting a control signal representative of the geofence crossing time. Other embodiments may be disclosed and/or claimed.

Abstract: A feed network for a multi-beam antenna is provided, including a first beam port, a second beam port, a beam-forming network coupled to the beam ports, and a cancellation circuit. The cancellation circuit is coupled to the first beam port and the second beam port before the beam-forming network. The cancellation circuit extracts a portion of a RF signal on the first beam port, adds phase delay, and injects the extracted, delayed signal from the first beam port onto the second beam port, and extracts a portion of a RF signal on the second beam port, adds phase shift, and injects the extracted, delayed signal from the second beam port onto the first beam port. In one example of the invention, the cancellation circuit comprises a first directional coupler on a first beam input path, a transmission line, a second directional coupler on the second beam input path.

Abstract: A vehicular radar board includes a PCB having a first surface and a second surface. The first surface of the board includes a plurality of transmitter end-fire antennas and a first plurality of receiver end-fire antennas that are spaced apart by a first gap. The second surface of the board includes a second plurality of receiver end-fire antennas that are spaced apart by a second gap that is greater than the first gap. The board also includes a first RFIC positioned on the first surface and designed to control the plurality of transmitter antennas to transmit radar signals and to receive a first reflected signal of the radar signals from the first plurality of receiver antennas. The board also includes a second RFIC positioned on the second surface and designed to receive a second reflected signal of the radar signals from the second plurality of receiver antennas.

Abstract: An exemplary alignment module for a base station antenna has one or more accelerometers and one or more magnetometers. The one or more accelerometers are used to determine tilt and roll angles of the antenna, while the yaw angle of the antenna is determined using the one or more magnetometers and the determined tilt and roll angles. Using multiple accelerometers and/or multiple magnetometers can improve accuracy of angle determination. A service provider can determine when to re-align the antenna by monitoring the tilt, roll, and yaw angles remotely to detect changes in antenna orientation. Yaw angle determination can also take into account offset values corresponding to soft-iron effects, hard-iron effects, and factory calibration. The need to re-calibrate offset values following changes in local magnetic environment can be detected by comparing different sensor signals, such as the different magnetic fields detected by a plurality of magnetometers.

Abstract: A verified authentication device has a navigation receiver, a processor, and a verification device. Navigation signals are transmitted from a Global Navigation Satellite System (GNSS). The processor authenticates the navigation signals and determines position coordinates of the navigation receiver. The verified authentication device receives input from a user of the verified authentication device. The verified authentication device provides reliability of the position coordinates based on the input from the user.

Abstract: There is provided a radar device. A transmitting unit transmits a first transmission signal generated based on a first parameter for computing a relative velocity or a distance in a first detection range, and a second transmission signal generated based on a second parameter for computing a relative velocity or a distance in a second detection range narrower than the first detection range. A receiving unit receives first and second reception signals from a target. A measuring unit computes a first relative velocity or a first distance in the first detection range based on the first reception signals, and compute a second relative velocity or a second distance in the second detection range based on the second reception signals, and selects any one of the first and second relative velocities, or any one of the first and second distances, as the result of measurement.

Abstract: Provided is a system in which a vehicle-mounted device and a mobile device are connected using a communication protocol. The vehicle-mounted device includes: a storage unit that stores information indicating whether or not an e-mail transmitting function specified in the communication protocol is incorporated; a control unit that determines, according to an instruction for transmitting an e-mail to the mobile device, whether or not the mobile device is equipped with the e-mail transmitting function, on the basis of the information in the storage unit; and a processing unit that transmits text, for e-mail, generated by the vehicle-mounted device, to the mobile device, and instructs the mobile device to generate an electronic mail according to the text for e-mail and transmit the electronic mail to an external network when the e-mail transmitting function is incorporated, and that instructs the mobile device to generate text for e-mail when the e-mail transmitting function is not incorporated.

Abstract: A method of determining in an IP multimedia subsystem, IMS, network which radio access type, RAT, should be used to route a terminating session directed towards a user equipment, UE. The HSS receives a terminating access domain selection, T-ADS, query from an application server, AS, of the IMS network, the T-ADS query relating to the terminating session and identifying the UE; and determines whether a packet data network gateway, PDN-GW, is registered for the UE. In the case where a PDN-GW is registered, the HSS sends a RAT request towards the PDN-GW, the RAT request identifying the UE and requesting a RAT used by the UE to connect to the IMS network. The PDN-GW determines the RAT and sends the result towards the HSS, which sends a T-ADS response to the AS indicating the RAT. In the case where a PDN-GW is not registered, the HSS sends a T-ADS response to the AS indicating that the RAT is a circuit switched RAT. Apparatus for implementing the method are also provided.

Abstract: A method and system enabling an initiator based process for preventing distracted driving is provided. The method includes continuously retrieving by a mobile device from a plurality of sensing devices, sensor data. The sensor data is analyzed and based on the analysis it is determined that a user of the mobile device is currently operating a vehicle. A message is generated indicating that the user is currently operating the vehicle. The message is transmitted to and stored by a server.

Abstract: A radar warning receiver is disclosed. The radar warning receiver includes an antenna, a signal detection unit, a signal identification unit and an alarm. The antenna collects radio frequency (RF) signals. The signal detection unit is configured to generate a group of frequency and amplitude signals based on the collected RF signals. Specifically, the signal detection unit includes a pair of limiting amplifiers for converting the collected RF signals into corresponding pulsed output signals that track the actual frequency oscillations of the collected RF signals, and a pseudo-random noise generator for injecting noise into one of the limiting amplifiers. Based on the frequency and amplitude signals, the signal identification unit determines whether or not any of the collected RF signals includes a threat signal. The alarm is utilized to present a threat signal to a human operator.

Abstract: The invention is directed to a wireless communication device that includes: a radio unit for performing wireless communications with at least one external device; at least one battery for supplying power to the wireless communication device; and at least one processing unit for controlling the radio unit, wherein the at least one processing unit, includes: host processing unit configured to control execution of one or more active state operations; and a secondary processing unit, coupled to the host processing unit and the radio unit, configured to control execution of one or more low-priority operations while the host processing unit is powered down, wherein the secondary processing unit is further configured to determine if an active-state operation is pending, and if it is determined that an active state operation is pending, to power up the host processing unit to control execution of the active state operation.

Abstract: An electronic device is provided. The electronic device may include a first subscriber identity module, a second subscriber identity module, and a communication module to communicate data via a first network using the first subscriber identity module, wherein the communication module may activate the second subscriber identity module during a tune-away period for a second network to communicate the data.