A method for facilitating in-device coexistence between wireless communication technologies on a wireless communication device is provided. The method can include transmitting data traffic from the wireless communication device via an aggressor wireless communication technology; determining occurrence of an in-device interference condition resulting from transmission of the data traffic via the aggressor wireless communication technology interfering with concurrent data reception by the wireless communication device via a victim wireless communication technology; and reducing a bit rate of the data traffic transmitted via the aggressor wireless communication technology in response to the in-device interference condition.

A method for adjusting an antenna configuration of the terminal device (30) in a cellular communication system (10). The system (10) includes a base station (20) and a terminal device (30) having a plurality of antenna elements (40-43). In the terminal device (30) a plurality of preset antenna configurations is provided. Each antenna configuration defines at least one reception parameter for the plurality of antenna elements (40-43). For each antenna configuration of the plurality of preset antenna configurations the antenna configuration is applied to the plurality of antenna elements (40-43) and a reception characteristic of a signal transmission from the base station (20) is determined. Based on the plurality of reception characteristics one antenna configuration is selected and applied to the plurality of antenna elements (40-43) for further signal transmissions.

A measurement task is selected, where the measurement task is associated with a transmission of an encoded signal transmitted via a plurality of data lines. The encoded signal is encoded using one or more of 3-Phase, N-Phase, or N-factorial low-voltage differential signaling (LVDS) where N is at least three (3). A repeating waveform is generated corresponding to the measurement task. The repeating waveform corresponding to the measurement task is then transmitted via the plurality of data lines.

A signal processing method and a related device are provided. The signal processing method includes: determining that there are N directions for received signals corresponding to a same signal source; configuring beam directions of an antenna as the N directions; estimating delays of the N received signals received by using the antenna, and separately performing, by using the estimated delays of the N received signals, delay compensation on the N received signals to obtain N received signals obtained after delay compensation, where the N received signals are in a one-to-one correspondence with the N directions, and N is an integer greater than 1; and performing combining processing on the N received signals obtained after delay compensation. The technical solutions in embodiments of the present invention help increase a signal reception gain in a multipath scenario.

A method of sparse digital cancellation of receiver nonlinear distortion in carrier aggregation systems is proposed. A reference signal generator generates possible candidate reference signals to be included in a dictionary matrix D. A sparsity-based solution is then applied to dynamically select reference signals based on the RF transceiver configuration. Based on the auto-correlation and cross-correlation with an observed radio signal, a subset of reference signals is selected from the dictionary matrix to match the distortion signal. The number of selected reference signals is flexibly determined based on the design constraints on complexity and power consumption. A greedy sparse estimation approaches, e.g., Orthogonal Matching Pursuit (OMP) can be used for reference signal selection. The reference signal selection is dynamic and adapts itself for different channel responses through correlating the observed radio signal with the dictionary reference signals.

Disclosed is an over-the-air (OTA) antenna meter application (“meter app”) that wirelessly connects to an OTA antenna meter (“meter”) installed with an OTA antenna and presents information that facilitates a user in installing the OTA antenna at the premises of a customer. For example, the meter app can help the user in pointing and peaking the OTA antenna for one or more broadcast channels, e.g., those selected by the customer. The meter app can store installation information of the OTA antenna for various installations, which can be used in generating a recommendation of, or predicting, installation information for installing the OTA antenna at a specified address. The predicted installation information can include broadcast channels that would be available for reception at the specified address and their signal strength, a specific location of installation on the premises, or whether a pre-amplifier and/or filter is required.

The present invention relates to an ambient backscattering communication system (14), the communication system (14) comprising: an ambient backscattering transmitter (16) suitable for generating an ambient backscattering signal according to a first polarization from an ambient signal incident on the transmitter (16), an ambient backscattering receiver (18) suitable for detecting the ambient backscattering signal transmitted by the ambient backscattering transmitter according to a second polarization, and a reduction device (22) for reducing the interference between the ambient backscattering signal and an ambient signal incident on the receiver, the reduction device (22) controlling the first polarization and the second polarization and wherein at least one of said first and second polarizations is adjustable.

A cross-division duplex (XDD) system includes an apparatus having a transceiver configured to communicate via an uplink channel and a downlink channel concurrently. The apparatus also includes a transmit antenna, a receive antenna, and a processor. The processor is configured to: estimate a non-linear component corresponding to a transmit path in the transceiver; apply an equalizer function to a received signal; and subtract, in a self-interference cancel (SIC) circuitry, the estimated non-linear component from the equalized signal.

A radio frequency (RF) receiving apparatus (10) includes a first and second omnidirectional RF antennas (20) at different spatial locations or orientations, a first and second RF receivers (24), each connected to a corresponding one of the first and second omnidirectional RF antennas (20), and a controller (32) connected to the first and second RF receivers (24). The first and second RF receivers (24) receive and demodulate RF signals of at least first and second carrier frequencies to recover data packets from at least a first device which transmits data packets on the first carrier frequency RF signal and a second device which transmits data packets on the second carrier frequency RF signal. The controller (32) is configured to control the RF receivers to cycle between receiving and demodulating the first carrier frequency RF signals concurrently to recover redundant data packets from the first device, and receiving and demodulating the second carrier frequency RF signals concurrently to recover redundant data packets from the second device. The apparatus can be used to wirelessly transmit physiological patient monitoring data (e.g. an ECG signal) in the highly reflective environment of an MRI system.

An automotive radar using combinations of the techniques of alternating transmit-receive bursts of digitally frequency modulated millimeter wave carriers; sparse MIMO antenna arrays with sidelobe-suppressive coarse and fine beamforming; frequency hopping; range-walking-compensated Doppler analysis and successive, and subtractive target detection in signal strength order.