Abstract: A method and circuit for controlling the compensation for channel mismatches are used in an electronic device which includes a signal transmission circuit or a signal receiving circuit that have two channels. The electronic device further includes a channel mismatch compensation circuit. The method includes: (A) determining a frequency of a test signal; (B) causing the test signal to pass through the signal transmission circuit or the signal receiving circuit, and measuring an image signal; (C) adjusting a compensation parameter of the channel mismatch compensation circuit to change an amplitude of the image signal; (D) determining, according to the amplitude of the image signal, a target compensation parameter of the channel mismatch compensation circuit, the target compensation parameter corresponding to the frequency of the test signal; (E) repeating steps (A) to (D) to obtain multiple target compensation parameters; and (F) determining a compensation mechanism based on the target compensation parameters.

Abstract: An information handling system includes a high-speed data communication link and a processor. The link includes lanes that each includes a transmitter with an equalization setting and a receiver. The processor initiates a training of the high-speed data communication interface to determine a setting value for the equalization setting for each lane, determines a lane quality value for each lane based upon the associated setting value, determines a link score based on the lane quality values, and determines that the lane quality score is outside a threshold range. In response to determining that the lane quality score is outside the threshold range, the processor selects a lane that has a lane quality value that has a greater magnitude than the lane quality values of all other lanes, increases the equalization setting of the first lane, and initiates a retraining of the other lanes.

Abstract: A round-trip, spread-spectrum navigation and locating system achieves high capacity and large processing gains in one-to-many and many-to-one configurations using round-trip signaling with frequency division based upon precise responding device carrier frequency offsets. Reduced cross-correlation is achieved by assigning these very small disparate frequency offsets to replies from interrogated devices so that the long-term correlation between disparate reply sequences is reduced almost to that of random noise of equivalent energy. The invention supports simultaneous interrogation of multiple responding devices, which responding devices respond essentially simultaneously at a fixed delay after receiving the query. The originating and/or responding devices may be fixed or mobile, permanently or temporarily deployed, terrestrial, airbourne or space-based with any source of power including batteries and solar without limitation.

Abstract: An analog-to-digital conversion circuit includes; a first analog-to-digital converter (ADC), a second ADC and a third ADC collectively configured to perform conversion operations according to a time-interleaving technique, and a timing calibration circuit configured to calculate correlation values and determine differences between the correlation values using first samples generated by the first ADC, second samples generated by the second ADC, and third samples generated by the third ADC during sampling periods, wherein the timing calibration circuit is further configured to control a phase of a clock signal applied to the second ADC in response to a change in absolute value related to the differences generated during the sampling periods.

Abstract: A reflection attenuation device for a bus of a bus system and a method for attenuating reflections during a data transfer in a bus system. The reflection attenuation device may close off a free end of bus lines of the bus in a transceiver device of a user station of the bus system. Alternatively, the reflection attenuation device may be connected to a branch point of the bus which is a star point or is used to connect a user station to the bus. Thus, bus users in a vehicle trailer are also connectable to the bus system of the vehicle, as needed. The reflection attenuation device includes at least one pair of electrical semiconductor components connected in parallel, and at least one capacitor that is connected in series to the pair of electrical semiconductor components connected in parallel, for attenuating reflections on a bus line of the bus.

Abstract: In an embodiment a real-time location method includes sending, by a master beacon device and one or more beacon repeater devices, ultra-wideband beacon frames, wherein the ultra-wideband beacon frames are transmitted as interleaved pairs of ultra-wideband beacon frames, wherein each interleaved pair is sent either from the master beacon device or the one or more beacon repeater devices, wherein each interleaved pair includes a first ultra-wideband beacon frame and a second ultra-wideband beacon frame, and wherein, for each interleaved pair, the first ultra-wideband beacon frame and the second ultra-wideband beacon frame are transmitted with a master time delay, receiving, by one or more tag devices, at least one of the interleaved pairs of ultra-wideband beacon frames, receiving, by the one or more beacon repeater devices, at least one of the interleaved pairs of ultra-wideband beacon frames, receiving, by one of a plurality of tag response receptor units, at least one of the interleaved pairs of ultra-wideba

Abstract: By a transmission method according to one aspect of the present disclosure, in a broadcasting system that generates a first broadcasting signal and a second broadcasting signal by performing multi-antenna encoding on program data, and wirelessly transmits a first broadcasting signal and a second broadcasting signal, a first transmit station transmits the first broadcasting signal, a second transmit station transmits the second broadcasting signal, the first transmit station and the second transmit station transmit the first broadcasting signal and the second broadcasting signal to an overlapping area at an identical time using an overlapping frequency band, polarized wave transmitted from the first transmit station differs from polarized wave transmitted from the second transmit station, and arrangement of the first transmit station differs from arrangement of the second transmit station.

Abstract: Provided are M signal processors that respectively generate modulated signals for M reception apparatuses (where M is an integer equal to 2 or greater), a multiplexing signal processor, and N antenna sections (where N is an integer equal to 1 or greater). When transmitting multiple streams, each of the M signal processors generates two mapped signals, generates first and second precoded signals by precoding the two mapped signals, periodically changes the phase of signal points in the IQ plane with respect to the second precoded signal, outputs the phase-changed signal, and outputs the first precoded signal and the phase-changed second precoded signal as two modulated signals. When transmitting a single stream, each of the M signal processor outputs a single modulated signal. The multiplexing signal processor multiplexes the modulated signals output from the M signal processors, and generates N multiplexed signals. The N antenna sections respectively transmit the N multiplexed signals.

Abstract: The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal.

Abstract: A plurality of driver slice circuits arranged in parallel having a plurality of driver slice outputs, each driver slice circuit having a digital driver input and a driver slice output, each driver slice circuit configured to generate a signal level determined by the digital driver input, and a common output node connected to the plurality of driver slice outputs and a wire of a multi-wire bus, the multi-wire bus having a characteristic transmission impedance matched to an output impedance of the plurality of driver slice circuits arranged in parallel, each driver slice circuit of the plurality of driver slice circuits having an individual output impedance that is greater than the characteristic transmission impedance of the wire of the multi-wire bus.

Abstract: A method for determining an inverse impulse response of a communication channel by means of a PAM receiver comprises the following method steps: switching on the PAM receiver; if a second PAM transceiver is switched on, setting a difference between a clock frequency of the data signal and a sampling frequency of the first PAM transceiver; comparing a symbol that is output by the interpreter with a state that is supplied to the interpreter, and outputting an error value, wherein in each case a symbol associated with a sampling clock is compared with a state associated with the same sampling clock; adapting m filter coefficients of the equalizer to minimize error values; repeating the third method step and the fourth method step until an error limit value is reached.

Abstract: This disclosure presents distributed and decentralized synchronization for wireless transceivers. The disclosed system, device, and method achieve sub-nanosecond synchronization using low-cost commercial off the shelf software defined radios. By providing a decentralized mechanism that does not rely on a hierarchical master-slave structure, networks constructed as disclosed are robust to sensor drop-out in contested or harsh environments. Such networks may be used to create phased array radars and communication systems without requiring wired connections to distribute a common clock or local oscillator reference.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless node (e.g., a user equipment) may determine one or more measurements associated with a beam search performed during a downlink beam management process. The first wireless node may transmit, to a second wireless node (e.g., a base station), a report that indicates one or more candidate downlink receive beams, candidate uplink transmit beams, or candidate downlink receive and uplink transmit beam pairs suitable for full-duplex operation based at least in part on the one or more measurements. Numerous other aspects are provided.

Abstract: A receiver for cancelling strong signals from combined weak and strong signals includes: a first circuitry for inputting a weak and strong signal as an input; a parametric cancellation circuit for inputting a representation of the strong signal and an output of the first circuitry to produce a cancellation signal; a second circuitry electrically coupled to the parametric cancellation circuit for inputting the cancellation signal to produce a modulated output; a demodulator electronically coupled to the second circuitry for demodulating the modulated output to produce a demodulated output and an error signal, where the demodulated output is the data contained in the weak signal; and an adaptation logic circuit for inputting the representation of the strong signal, the demodulated output and the error signal to adaptively produce parameters for the parametric cancellation circuit. The parametric cancellation circuit further inputs the error signal and the parameters to produce the cancellation signal.

Abstract: Devices, systems, and methods for serial communication over a galvanically isolated channel are disclosed. A device includes a first IC device interface, first IO components connected to the first IC device interface, a second IC device interface, second IO components connected to the second IC device interface, an insulator layer having a first major surface and a second major surface, at least one pair of capacitor plates and corresponding interconnection paths on the first major surface, and at least one pair of capacitor plates and corresponding interconnection paths on the second major surface, wherein the at least one pair of capacitor plates on the first major surface of the insulator layer are aligned with the at least one pair of capacitor plates on the second major surface of the insulator layer to form at least one pair of capacitors.

Abstract: Methods and apparatus for providing quasi-licensed spectrum access within a prescribed area or venue, including to users or subscribers of one or more Mobile Network Operators (MNOs). In one embodiment, the quasi-licensed spectrum utilizes 3.5 GHz CBRS (Citizens Broadband Radio Service) spectrum allocated by a Federal or commercial SAS (Spectrum Access System) to a managed content delivery network that includes one or more wireless access nodes (e.g., CBSDs) in data communication with a controller, and the core(s) of the MNO network(s). In one variant, the controller dynamically allocates (i) spectrum within the area or venue within CBRS bands, and (ii) MNO “roaming” users or subscribers to CBRS bands (e.g., via extant LTE-TD technology). In one particular implementation, the managed network comprises a Multiple Systems Operator (MSO) network such as a cable or satellite network, and the MSO and MNO coordinate to implement user-specific and/or data-specific policies for the roaming MNO subscribers.

Abstract: Examples relate to a transmit apparatus, a receive apparatus, a method for transmitting, a method for receiving and computer readable storage media for transmitting and/or receiving in a communication network. A transmit apparatus for transmitting discontinuous time-frequency operation, DTFO, signals in a communication network comprises a transmitter configured to transmit a DTFO signal comprising monitoring symbols and regular DTFO symbols in the communication network.

Abstract: In a signal detection apparatus, a quadrature detection circuit subjects a reception signal to quadrature detection. An intensity detection circuit detects a signal intensity by referring to an absolute value of an amplitude of a signal subjected to quadrature detection. A zero cross detection circuit detects the number of times of zero crosses of the signal in a predetermined period of time that is based on a modulation index of the reception signal. A signal determination circuit that determines that the signal is the reception signal when the signal intensity is equal to or higher than a threshold value and the number of times of zero crosses is within a predetermined range.

Abstract: A platform is provided which removes the need for the pilot to select between high angle and low angle antenna elements. By the automatic selection, the platform may improve BLOS connectivity during various phases of flight, such as during banking operations. The platform includes a SATCOM antenna including first and second elements. The platform also includes one or more SDRs which provide receive and transmit functions for the BLOS waveform. The platform may also include either a UHF diversity combiner or an LNA diplexer assembly. Thus, two methods are described for reducing out-of-service events for CDMA and legacy Narrowband UHF SATCOM.

Abstract: A method for synchronizing a data frame and data symbols in a communication system includes generating a training sequence including a serial sequence of data symbols that are conjugate symmetric, inserting the training sequence in a transmitter-side data frame, converting constituent data symbols of the transmitter-side data frame to communication signals, transmitting the communication signals from a transmitter to a receiver, converting the communication signals to a stream of received data symbols, detecting presence of the training sequence in the stream of received data symbols, and identifying a position of a received data frame from the presence of the training sequence.