Abstract: The present disclosure provides a method for performing beamforming. The method includes initiating a first signal transmitted from a target second device to be received by a first device having an antenna array. A first beamforming weight matrix is generated by the first device that automatically corrects amplitude and phase errors of the antenna array and maximizes antenna gain toward the target second device using a covariance matrix derived from the received first signal. An enhanced second beamforming weight matrix is then generated by the first device using a mask window or a jointly optimized algorithm to further suppress interference to and from other active second devices. The enhancement is computed and applied based on the distribution of multiple active second devices. The antenna array is steered using the second beamforming weight matrix to transmit to and receive from the target second device with an optimized antenna beam pattern.

Abstract: A method of data reduction implemented in a communication system, the method comprising steps of generating a plurality of first baseband signals in response to a plurality of signals received by at least one antenna, capturing a plurality of second baseband signals, in response to a signal time duration, from each of the first baseband signals, generating a plurality of third baseband signals in response to the second baseband signals, transmitting a first combined signal including the third baseband signals to at least one baseband signal unit via a communication system, retrieving the third baseband signal from the received first combined signal, generating a plurality of fourth baseband signals, and generating a second combined signal including the fourth baseband signals.

Abstract: Systems, methods, and computer-readable storage devices relate to a process for beamforming in a system. An available spectrum is divided into M sub-bands, with each of the M sub-bands having N beams. The system, through using M×N available beams, can maintain frequency domain and spatial domain orthogonality. A method includes receiving a direction indicating a location of a device relative to a transmitter and selecting a beam from the M×N beams. The beam can be a data beam for transmitting data to the device or a null to suppress interference. The bandwidth, spectrum and/or direction associated with the beam can be chosen and/or varied based on one of any number of parameters such as avoiding channel distortions, reducing mismatch in amplitude and/or delay, and adapting to a data type or data amount. Frequency assignments can be staggered through a cell-based region to reduce cell interference in assigning beams.

Abstract: The present disclosure provides a method for performing beamforming. The method includes initiating a first signal transmitted from a target second device to be received by a first device having an antenna array. A first beamforming weight matrix is generated by the first device that automatically corrects amplitude and phase errors of the antenna array and maximizes antenna gain toward the target second device using a covariance matrix derived from the received first signal. An enhanced second beamforming weight matrix is then generated by the first device using a mask window or a jointly optimized algorithm to further suppress interference to and from other active second devices. The enhancement is computed and applied based on the distribution of multiple active second devices. The antenna array is steered using the second beamforming weight matrix to transmit to and receive from the target second device with an optimized antenna beam pattern.

Abstract: Systems, methods, and computer-readable storage devices relate to a process for beamforming in a system. An available spectrum is divided into M sub-bands, with each of the M sub-bands having N beams. The system, through using M×N available beams, can maintain frequency domain and spatial domain orthogonality. A method includes receiving a direction indicating a location of a device relative to a transmitter and selecting a beam from the M×N beams. The beam can be a data beam for transmitting data to the device or a null to suppress interference. The bandwidth, spectrum and/or direction associated with the beam can be chosen and/or varied based on one of any number of parameters such as avoiding channel distortions, reducing mismatch in amplitude and/or delay, and adapting to a data type or data amount. Frequency assignments can be staggered through a cell-based region to reduce cell interference in assigning beams.

Abstract: A method of multipath compensation for digital pre-distortion (DPD) linearization suppresses linear distortion caused by reflected signals and distortion in transmitting and receiving paths. Reflection suppression suppresses effects of the linear distortion on the transmitting and receiving paths.

Abstract: A method of crest factor reduction using amplitude compression for multi carrier signals. Major elements of the inter-modulation distortion caused by amplitude suppression are removed to be outside of the desired signal band, and the peak amplitude is compressed, thus producing a signal with lower peak to average ratio for a required maximum error vector magnitude.