Abstract: A first microwave backhaul transceiver may comprise a plurality of antenna elements. The transceiver may determine atmospheric conditions between it and one or more potential link partners, and adjust a radiation pattern of the plurality of antenna elements based on the determined atmospheric conditions. A first radiation pattern of the plurality of antenna elements may correspond to a first microwave backhaul link between the first microwave transceiver and a second microwave backhaul transceiver. A second radiation pattern of the plurality of antenna elements may correspond to a second microwave backhaul link between the first microwave transceiver and a third microwave backhaul transceiver. The transceiver may adjust the radiation pattern based on characteristics of data to be transmitted, and based on a routing table it maintains.

Abstract: A satellite dish assembly may comprise a broadcast receive module and a basestation module. The broadcast receive module may be operable to receive a satellite signal, recover media carried in the satellite signal, and output the media. The basestation module may be operable to accept the media output by the broadcast receive module and transmit the media in accordance with one or more wireless protocols. In being conveyed from the broadcast receive module to the basestation, the media content may not traverse any wide area network connection. The one or more wireless protocols may comprise one or more of: a cellular protocol and IEEE 802.11 protocol. The satellite dish assembly may comprise a routing module that may be operable to route data between the broadcast receive module, the basestation, and a gateway.

Abstract: Aspects of a method and system for high-speed, low-power optical communications are provided. In one embodiment, a system for optical communications comprises a digital-to-analog converter (DAC), a driver, and a transmit optical subsystem. The DAC is operable to receive a digital code of a plurality of digital codes and output an analog current signal having an analog current level of a plurality of analog current levels. The driver is operable to condition the analog current signal output from the digital-to-analog converter. The transmit optical subsystem is operable to generate an optical power signal from the conditioned analog current signal. A mapping between the plurality of digital codes and the plurality of analog current levels is dynamically controlled according to one or more characteristics of the optical power signal. The one or more characteristics comprise or a symbol amplitude sensitivity and/or a nonlinearity that may be temperature dependent.

Abstract: A microwave transceiver comprises a plurality of antenna arrays, each of which is oriented in a different direction, and circuitry operable to automatically select which of the antenna arrays to use for establishing a microwave backhaul link with a link partner. The circuitry may comprise a plurality of front-ends, each of which may be operable to perform beamforming of signals transmitted and received via a respective one of the antenna arrays. The circuitry may comprise a modem circuit. For transmit operations, the modem may generate a modulated signal for output to one of the plurality of front-end circuits. For receive operations, the modem may demodulate a signal received from one of the plurality of front-end circuits. Each of the antenna arrays may be mounted to a different one of a plurality of surfaces of a housing of the microwave transceiver. The housing of the microwave transceiver may form a polyhedron.

Abstract: Systems and methods for securing a network, for admitting new nodes into an existing network, and/or securely forming a new network. As a non-limiting example, an existing node may be triggered by a user, in response to which the existing node communicates with a network controller node. Thereafter, if a new node attempts to enter the network, and also for example has been triggered by a user, the network controller may determine, based at least in part on parameters within the new node and the network controller, whether the new node can enter the network.

Abstract: Systems and methods are provided for peak to average power ratio (PAPR) reduction in multichannel digital front-ends (DFEs). A transmitter may be configured to reduce PAPR during multichannel transmission, with the reducing comprising: generating a plurality of frequency-domain symbols, each of which corresponding to a particular one of a plurality of subcarriers; assigning the subcarriers to a plurality of channels, wherein a number of channels is less than a number of subcarriers; and generating a plurality of time-domain signals corresponding to the channels. An adjustment to reduce PAPR may be applied to at least one of the time-domain signals, with the adjustment being based on symbols boundaries. The adjustment may comprise sign inversion. Adjusted and unadjusted waveforms may be generated for two or more of the time-domain signals; and selection may be made between generated adjusted waveforms based on particular criteria. The criteria may comprise lowest peak.

Abstract: Each of a plurality of modules comprises a respective one of a plurality of antenna elements, and each of a subset of the plurality of modules comprising a respective one of a plurality of transceivers, wherein the plurality of modules are interconnected via one or more communication links. The circuitry may be operable to receive a calibration signal via the plurality of antenna elements, determine, for each one of the antenna elements, a time and/or phase of arrival of the calibration signal, calculate, based on the time and/or phase of arrival of the calibration signal at each of the plurality of antenna elements, electrical distances between the plurality of antenna elements on the one or more communication links, and calculate beamforming coefficients for use with the plurality of antenna elements based on the electrical distances.

Abstract: Methods and systems for optimizing bandwidth utilization in an in-home network may comprise determining usage and/or quality of communication links operating in accordance with first and second communication protocols in a multi-protocol wired and wireless network. Data communication may be routed from a first communication link operating in accordance with the first communication protocol to a second communication link operating in accordance with the second communication protocol, based on the determining. The first communication protocol may comprise a multimedia over cable alliance (MoCA) standard and the second communication protocol may comprise an IEEE 802.11x standard. The determining and routing may be performed by a MoCA network controller. The first communication protocol may comprise an IEEE 802.11x standard and the second communication protocol may comprise a MoCA standard. The rerouting may increase bandwidth usage efficiency and/or data throughput of the network.

Abstract: Methods and systems for time interleaved analog-to-digital converter timing mismatch calibration and compensation may include receiving an analog signal on a chip, converting the analog signal to a digital signal utilizing a time interleaved analog-to-digital-converter (ADC), and reducing a blocker signal that is generated by timing offsets in the time interleaved ADC by estimating complex coupling coefficients between a desired digital output signal and the blocker signal utilizing a decorrelation algorithm on frequencies within a desired frequency bandwidth. The decorrelation algorithm may comprise a symmetric adaptive decorrelation algorithm. The received analog signal may be generated by a calibration tone generator on the chip. An aliased signal may be summed with an output signal from a multiplier. The complex coupling coefficients may be determined utilizing the decorrelation algorithm on the summed signals.

Abstract: A communications network comprises performance determination circuitry and link control circuitry. The performance determination circuitry is operable to determine performance of a microwave backhaul link between a first microwave backhaul transceiver and a second microwave backhaul transceiver. The microwave backhaul link backhauls traffic of a mobile access link. The link control circuitry is operable to, in response to an indication from the performance determination circuitry that the performance of the microwave backhaul link has degraded, adjust one or more signaling parameters used for the mobile access link. The link control circuitry is operable to, in response to the indication that the performance of the microwave backhaul link has degraded, adjust one or more signaling parameters used for the backhaul link in combination with the adjustment of the parameter(s) of the access link.

Abstract: Systems and methods are provided for digital-to-analog converters (DACs) with enhanced dynamic element matching (DEM) and calibration. DEM may be adapted based on assessment of one or more conditions that may affect the DACs or DEM functions thereof. The one or more condition may comprise amount of signal backoff. The adaption may comprise switching the DEM function (as a whole, or partially—e.g., individual DEM elements) on or off based on the assess conditions. The DACs may incorporate use of calibration. The DEM and/or the calibration may be applied to only a portion of the DAC, such as a particular segment (e.g., a middle segment comprising bits between the MSBs and the LSBs).

Abstract: Methods and systems are provided for replacing hardware during active communications. A replacement circuit may be added into a communication system during active communications with a link peer, with a circuit being replaced handling signals communicated with the link peer. The replacement circuit may be configured to handle a first subset of the signals communicated with the link peer, with the circuit being replaced being configured to handle a second subset of the signals communicated with the link peer. Signals of the first subset and the second subset may differ based on at least one signal related attribute. After ensuring that the replacement circuit is operating correctly, the replacement circuit may be configured to handle all signals communicated with the peer link, and the circuit being replaced may be configured for removal. The replacement circuit and the circuit being replaced may interact during the replacement sequence.

Abstract: An integrated circuit may comprise a tuner operable to digitize a band of frequencies comprising a plurality of television channels, a crossbar operable to select one or more of the plurality of television channels output by the tuner, a plurality of demodulators operable to receive the selected one or more television channels from the crossbar and demodulate the selected one or more television channels to recover a plurality of transport streams, a transport module operable to multiplex the plurality of transport streams into a single packet stream, and a framer operable to: encapsulate packets of the plurality of transport streams into transport stream frames of a serial datastream, and insert filler frames into the serial datastream after every Nth transport stream frame of the serial datastream, where N is an integer.

Abstract: A system comprises an analog front end (AFE), an analog-to-digital converter (ADC), and alias detection circuitry. The AFE may be operable to receive an analog signal via a communication medium, wherein a first frequency band of the analog signal is occupied by an OFDM symbol and a second frequency band of the analog signal is occupied by first aliases generated during digital-to-analog conversion of the OFDM symbol. The ADC is operable to digitize the particular band of the analog signal to generate a digital signal, wherein, during the digitization, aliasing of the first aliases results in second aliases which fall into the first frequency band. The alias detection circuitry is operable to detect the second aliases in the first frequency band of the digital signal, and process the digital signal based on the detected second aliases to generate an output signal.

Abstract: Methods and systems for crest factor reduction may comprise generating an original waveform, generating a distortion signal by reducing a crest factor of the original waveform, generating an error signal by subtracting out the original waveform from the distortion signal, and generating a conditioned waveform by adding the error signal to the original waveform. The crest factor of the original waveform may be reduced based on spectral mask requirements. The crest factor of the original waveform may be reduced using a limiter. The power amplifier may comprise a programmable gain amplifier (PGA). The distortion signal may be generated based on a PGA model and/or a predistortion model. A signal from an output of the PA may be fed back to the PGA model. The PGA model may be dynamically configured. The crest factor of the original waveform may be reduced in an analog domain and/or a digital domain.

Abstract: A remote control unit of an unmanned vehicle comprises a first communications subsystem, a processor, and a graphics processor. The first communications subsystem may be operable to receive sensor data via a first communication link between the remote control unit and the unmanned vehicle. The processor may be operable to determine a position and orientation of the unmanned vehicle based on the sensor data. The first communication subsystem may be operable to receive, via a second communication link between the remote control unit and the unmanned vehicle, a live first-person view from a camera of the unmanned vehicle. The graphics processor may be operable to generate a virtual first-person view from apriori data based on the sensor data. The processor may be operable to determine whether to present said live first-person view or said virtual first-person view based on signal quality of said second communication link.

Abstract: Systems and methods for admitting new nodes into an existing network, for example a MoCA network. As a non-limiting example, various aspects of the present disclosure provide systems and methods for adding a new node to an existing network without requiring on-site manual configuration, for example utilizing communication between the new node and a network coordinator of the existing network prior to admission of the new node to the existing network.

Abstract: Methods and systems are provided for low-power decoding. An example system may include one or more storage circuits and a decoder circuit. The decoder circuit may implement a plurality of nodes for use during decoding, including at least one data generating node and at least one data checking node, and the storage circuits may store status information associated with the nodes, the status information indicating when each corresponding node is locked or unlocked. During decoding operations, the decoder circuit may set the status information to lock one or more of the nodes based on one or more locking conditions, and may cease decoding based on one or more ceasing conditions. The decoder circuit may locks a data generating node when a corresponding calculated value meets a particular condition, and may lock a data checking node when all data generating nodes associated with it are locked.

Abstract: Methods and systems for multi-path video and network channels may comprise a communication device comprising a wideband tuner (WB) and a narrowband tuner (NB). A video channel and a network channel may be received in the WB when the device is operating in a first stage. A video channel and a network channel may be received in the WB and the network channel may also be received in the NB when the device is operating in a second stage. The network channel may be received in the NB when the device is operating in a third stage. The reception of the network channel from both the WB and NB may enable a continuous reception of the network channel in a transition between the first and third stages. The WB may be operable to receive a plurality of channels and the NB may be operable to receive a single channel.

Abstract: Methods and systems for a baseband cross-bar may comprise receiving one or more radio frequency (RF) signals in a wireless communication device via antennas coupled to a plurality of receiver paths in the wireless device. The received RF signals may be converted to baseband frequencies. One or more of the down-converted signals may be coupled to receiver paths utilizing a baseband cross-bar. The baseband cross-bar may comprise a plurality of switches, which may comprise CMOS transistors. In-phase and quadrature signals may be processed in the one or more of the plurality of receiver paths. The one or more RF signals comprise cellular signals and/or global navigation satellite signals. A single-ended received RF signal may be converted to a differential signal in one or more of the plurality of receiver paths. The baseband cross-bar may be controlled utilizing a reduced instruction set computing (RISC) processor.