Abstract: A system and method for frequency reuse for wireless point-to-point backhaul. Frequency reuse is enabled through the cancellation of interfering signals generated by interference sources. In one embodiment, a conventional dish antenna is complemented with one or more additional auxiliary antennas (e.g., isotropic). The one or more additional auxiliary antennas enable cancellation of interfering signals whose direction of arrival (DOA) is off the dish antenna's bore-sight.

Abstract: To provide for higher data rates, a wireless back haul network for connecting small cell base stations to a core network can be implemented using full-duplex over single channel communications. The difficulty with full-duplex over single channel communications, and the reason why it has not become common place in wireless and mobile communication standards to date, is the significant interference that the receiver of a full-duplex communication device will generally experience from the full-duplex communication device's own transmitter transmitting over the same channel that the receiver is to receive signals. This interference is referred to as self-interference because the interference experienced by the receiver originates from its own paired transmitter. The present disclosure describes embodiments of an apparatus and method that provide sufficient self-interference cancellation in a compact and power efficient manner for a small cell wireless backhaul network.

Abstract: A system and method for frequency reuse for wireless point-to-point backhaul. Frequency reuse is enabled through the cancellation of interfering signals generated by interference sources. In one embodiment, a conventional dish antenna is complemented with one or more additional auxiliary antennas (e.g., isotropic). The one or more additional auxiliary antennas enable cancellation of interfering signals whose direction of arrival (DOA) is off the dish antenna's bore-sight.

Abstract: A point-to-point (PtP) communication system includes a near end antenna device configured to transmit a narrow antenna beam over a wireless link, and includes a far end antenna device configured receive the narrow antenna beam over the wireless link. The near end antenna device including a directive element configured to focus an electrical field into the narrow antenna beam, and including a beam steering element (e.g., a phased array feeder (PAF) assembly) configured to generate the electrical field and to track the far end antenna, and further including a communication interface unit (e.g., an outdoor unit) configured to perform operations on a transmitted signal and a received signal.

Abstract: A point-to-point (PtP) communication system includes a near end antenna device configured to transmit a narrow antenna beam over a wireless link, and includes a far end antenna device configured receive the narrow antenna beam over the wireless link. The near end antenna device including a directive element configured to focus an electrical field into the narrow antenna beam, and including a beam steering element (e.g., a phased array feeder (PAF) assembly) configured to generate the electrical field and to track the far end antenna, and further including a communication interface unit (e.g., an outdoor unit) configured to perform operations on a transmitted signal and a received signal.

Abstract: A system and method for frequency reuse for wireless point-to-point backhaul. Frequency reuse is enabled through the cancellation of interfering signals generated by interference sources. In one embodiment, a conventional dish antenna is complemented with one or more additional auxiliary antennas (e.g., isotropic). The one or more additional auxiliary antennas enable cancellation of interfering signals whose direction of arrival (DOA) is off the dish antenna's bore-sight.

Abstract: A wireless communication system, which includes at least one base station module configured to implement a media access controller and a physical layer, and includes at least one remote radio head module configured to prepare an analog signal or a digital data signal for transmission and receipt over a link in accordance with dedicated interface specifications, and also includes at least one outdoor signal conversion module configured to perform a high rate digital-to-analog conversion and a high rate analog-to-digital conversion in accordance with the dedicated interface specifications, and further includes at least two millimeter wave antenna assemblies, where each antenna assembly is configured to transmit and receive the analog signal over a wireless link in accordance with the dedicated interface specifications.

Abstract: A millimeter wave modem assembly, which includes an input/output interface module configured to receive and transmit standardized data streams in accordance with dedicated interface specifications, and includes an encoder module configured to encode the standardized data streams to form coded digital bits, and also includes a physical layer module configured to convert the coded digital bits into digital symbols and into digital samples, and to convert the digital samples into the digital symbols and then into the coded digital bits; and further includes a data conversion module configured to perform a high rate conversion of the digital samples to form an analog signal suitable for wireless transmission over a link in accordance with the dedicated interface specifications.

Abstract: A point-to-point (PtP) communication system includes a near end antenna device configured to transmit a narrow antenna beam over a wireless link, and includes a far end antenna device configured receive the narrow antenna beam over the wireless link. The near end antenna device including a directive element configured to focus an electrical field into the narrow antenna beam, and including a beam steering element (e.g., a phased array feeder (PAF) assembly) configured to generate the electrical field and to track the far end antenna, and further including a communication interface unit (e.g., an outdoor unit) configured to perform operations on a transmitted signal and a received signal.

Abstract: An advanced split microwave architecture is provided. The advanced split microwave architecture includes a smart outdoor communication unit including a digital N-Plexer configured to multiplex and/or demultiplex a received data signal in the digital domain, a processor unit configured to carry out instructions to control operation of the digital N-Plexer, and a converter module configured to convert the received data signal between the digital domain and the analog domain. The smart outdoor communication unit further includes an RF module, having digital capabilities, configured to correct errors within the received data signal in the digital domain, perform a conversion of the received data signal, to amplify a power of the received data signal, and to perform automatic gain control in the digital domain.

Abstract: A wireless communication system, which includes at least one base station module configured to implement a media access controller and a physical layer, and includes at least one remote radio head module configured to prepare an analog signal or a digital data signal for transmission and receipt over a link in accordance with dedicated interface specifications, and also includes at least one outdoor signal conversion module configured to perform a high rate digital-to-analog conversion and a high rate analog-to-digital conversion in accordance with the dedicated interface specifications, and further includes at least two millimeter wave antenna assemblies, where each antenna assembly is configured to transmit and receive the analog signal over a wireless link in accordance with the dedicated interface specifications.

Abstract: A millimeter wave modem assembly, which includes an input/output interface module configured to receive and transmit standardized data streams in accordance with dedicated interface specifications, and includes an encoder module configured to encode the standardized data streams to form coded digital bits, and also includes a physical layer module configured to convert the coded digital bits into digital symbols and into digital samples, and to convert the digital samples into the digital symbols and then into the coded digital bits; and further includes a data conversion module configured to perform a high rate conversion of the digital samples to form an analog signal suitable for wireless transmission over a link in accordance with the dedicated interface specifications.

Abstract: A method for communication includes receiving a composite signal, which carries data at a first data rate and includes multiple sub-signals that are interleaved in a time domain and are separated by boundary indicators. The received composite signal is demultiplexed into the sub-signals by automatically detecting the boundary indicators between the sub-signals in the composite signal. The sub-signals are demodulated using multiple respective demodulators operating at second data rates that are lower than the first data rate so as to generate respective output data streams. The output data streams are combined so as to reconstruct the data at the first data rate.

Abstract: A method for jointly designing a transmitter pulse-shaping filter and a receiver pulse-shaping filter having respective filter coefficients includes defining one or more performance-related variables based on at least some of the filter coefficients of the transmitter and receiver pulse-shaping filters. One or more constraints applicable to one or more of the filter coefficients and variables are set. A cost function defined over the variables is evaluated. Optimized filter coefficient values of the transmitter and receiver pulse-shaping filters are jointly calculated by applying an optimization process to the cost function while meeting the one or more constraints.

Abstract: A method for communication includes receiving a composite signal, which carries data at a first data rate and includes multiple sub-signals that are interleaved in a time domain and are separated by boundary indicators. The received composite signal is demultiplexed into the sub-signals by automatically detecting the boundary indicators between the sub-signals in the composite signal. The sub-signals are demodulated using multiple respective demodulators operating at second data rates that are lower than the first data rate so as to generate respective output data streams. The output data streams are combined so as to reconstruct the data at the first data rate.

Abstract: A method for communication includes receiving a composite signal, which carries data at a first data rate and includes multiple sub-signals that are interleaved in a time domain and are separated by boundary indicators. The received composite signal is demultiplexed into the sub-signals by automatically detecting the boundary indicators between the sub-signals in the composite signal. The sub-signals are demodulated using multiple respective demodulators operating at second data rates that are lower than the first data rate so as to generate respective output data streams. The output data streams are combined so as to reconstruct the data at the first data rate.

Abstract: A method for communication includes receiving a composite signal, which carries data at a first data rate and includes multiple sub-signals that are interleaved in a time domain and are separated by boundary indicators. The received composite signal is demultiplexed into the sub-signals by automatically detecting the boundary indicators between the sub-signals in the composite signal. The sub-signals are demodulated using multiple respective demodulators operating at second data rates that are lower than the first data rate so as to generate respective output data streams. The output data streams are combined so as to reconstruct the data at the first data rate.

Abstract: A method for jointly designing a transmitter pulse-shaping filter and a receiver pulse-shaping filter having respective filter coefficients includes defining one or more performance-related variables based on at least some of the filter coefficients of the transmitter and receiver pulse-shaping filters. One or more constraints applicable to one or more of the filter coefficients and variables are set. A cost function defined over the variables is evaluated. Optimized filter coefficient values of the transmitter and receiver pulse-shaping filters are jointly calculated by applying an optimization process to the cost function while meeting the one or more constraints.

Abstract: A transceiver card for a personal computer includes a single circuit board that plugs into the personal computer and that is coupled to exchange data via an industry-standard bus in the personal computer. Radio frequency modulation circuitry on the circuit board receives the data and transmits radio frequency signals responsive thereto. Receiver circuitry receives radio frequency signals and converts the received signals to data for transfer via the bus. In an alternative configuration, the transceiver includes two circuit boards coupled to a USB bus within an external box. Data is exchanged with the computer through a USB port in the computer.