Patent classifications
H04B1/126
DISTRIBUTION OF CLIPPING NOISE BETWEEN BANDS
A method comprising: obtaining a first radio signal and a second radio signal, determining a first envelope signal based on the first radio signal and a second envelope signal based on the second radio signal, determining a preview envelope signal based on the first envelope signal and the second envelope signal, determining a common clipping gain signal based on the preview envelope signal, determining a first clipping gain signal based on the common clipping gain signal and a first weighing factor, determining a second clipping gain signal based on the common clipping gain signal and a second weighing factor, performing a first crest factor reduction for the first radio signal utilizing the first clipping gain signal, and performing a second crest factor reduction for the second radio signal utilizing the second clipping gain signal.
Multi-antenna jamming/interference protection for waveforms
Embodiments of the present invention include a system, method and computer program product for mitigating interference in data received by a multiple antenna array. Processor(s) executing program code identify signals from users, including active users, and by identifying these signals, mitigate interference and jamming in the received data, overall.
ANTENNA SYSTEM
An antenna system is described. A main antenna may be configured to receive a first signal, and a first auxiliary antenna may be configured to receive a second signal from a first expected interference direction. An adjustment unit receives the second signal and is configured to adjust the second signal. A combiner unit receives the first signal and the adjusted second signal and is configured to combine the adjusted second signal with the first signal to reduce any contribution of the second signal to the first signal.
Device and method for reducing the self interference signal in a full-duplex communication system
A device for reducing a self-interference contribution in a full-duplex wireless communication system configured to transmit a transmission signal and modulated by a baseband signal, and configured to receive a reception signal containing a self-interference contribution corresponding to the transmission signal, the reduction device comprising a first reduction module, configured to take a replica of the transmission signal, and configured to generate a first reduction signal, the device further comprising: a second reduction module, arranged so as to be able to take a replica of the baseband signal, and capable of generating a second reduction signal that is a function of the temporal derivative of the baseband signal, a subtractor, linked to the first reduction module and to the second reduction module, and configured to subtract from the reception signal the first reduction signal and the second reduction signal.
Electronic device and operation method therefor
An example operation method for an electronic device having a plurality of antennas including a first antenna and a second antenna is disclosed. According to one embodiment, the operation method for an electronic device can comprise the steps of: communicating with a first external electronic device through the first antenna and the second antenna based on a first communication scheme during a first period; and communicating with the first external electronic device through the first antenna based on the first communication scheme, and with a second external electronic device through the second antenna based on a second communication scheme, during a second period.
ANTENNA, TERMINAL, METHOD FOR REALIZING ADJUSTMENT AND CONTROL OF ANTENNA AND DEVICE FOR ADJUSTMENT AND CONTROL OF ANTENNA
An antenna, a terminal, a method and device for implementing control of an antenna, the method including: detecting whether at least two sub-radiation areas are interfered, the at least two sub-radiation areas each corresponding to a respective one of feed points and forming a radiation area of an antenna radiator; controlling the feed points based on detection on the at least two sub-radiation areas, so as to use an un-interfered sub-radiation area of the at least two sub-radiation areas of the antenna radiator as a current antenna radiator.
NOISE REDUCTION AND SPUR AND DISTORTION CANCELLATION TECHNIQUES
A wireless communication device can include an antenna configured to sense a radio frequency (RF) signal. The wireless communication device can include signal estimation circuitry configured to generate estimates of amplitude and frequency for unmodulated spurs within the RF signal. The wireless communication device can further include multi-tone generator circuitry coupled to the signal estimation circuitry and configured to generate a composite spur cancellation signal based on the estimates of amplitude and frequency for unmodulated spurs within the RF signal. The wireless communication device can further include adder circuitry configured to subtract the spur cancellation signal from the RF signal to generate a spur cancelled signal.
SPUR MANAGEMENT IN MILLIMETER WAVE COMMUNICATIONS
Systems and methods to detect spurious responses (spurs) in association with mmWave wireless communications are described. Such spurs may originate internal to the receiver (internal spurs) or external to the receiver (external spurs) originated in the transmitter. Embodiments operate to identify received mmWave wireless communication signal spurs in symbols, or portions thereof, which do not have transmissions directed to the receiving device. mmWave spur detection implementations of embodiments can detect spurs in real-time operation of the receiving device. Such real-time spur detection facilitates operation by the receiving device to perform spur removal in real-time operation of the receiving device, thus enabling removal of both internal spurs and external spurs as well as dynamically adapting to different scenarios that cause different spurs. Other aspects and features are also claimed and described.
Method and apparatus for performing signal augmentation
Apparatus for augmenting a received signal comprising a receiver configured to receive a signal, a digitizer configured to generate a digitized version of the received signal at two different times, and a signal processor, coupled to the digitizer, configured to determine a phase relationship between the digitized signals at the two different times, adjust a phase of at least one of the digitized signals based on the phase relationship to combine the two digitized signals to form an augmented signal.
INTERFERENCE CANCELLATION USING CIRCULAR POLARIZED ANTENNAS
A method for mitigating interference at a receiver may include receiving a communication signal at a first Circular Polarization (CP) antenna as a first received signal, receiving the communication signal at a second CP antenna as a second received signal, phase shifting the second received signal that was received by the second CP antenna to produce a phase shifted signal, and mixing the first received signal that was received by the first CP antenna and the phase shifted signal to produce a resulting received CP signal. Related systems, devices and computer program products are also described.