Abstract: A system can comprise a radio unit comprising a digital front end, wherein the digital front end comprises a group of tap points that are configured to receive a first custom signal. The system can also comprise a first component that is configured to originate the first custom signal. The system can also comprise a second component that is configured to select a first tap point of the group of tap points, and inject the first custom signal into the first tap point.

Abstract: An error correction component and AT?M function determine correction factors from a feedback signal to use by digital predistortion to cancel distortion caused by a power amplifier and also determine correction factors that may be used to determine Time of Arrival of an isolation leakage signal. Correction factors may be stored in, or retrieved from, multiple AT?M functions, which may be part of an ASIC along with the error correction component. The isolation leakage signal may be canceled within the error correction component, resulting in a leakage residual signal that may facilitate determining the ToA of the leakage signal. Cancelling the isolation leakage signal facilitates better sensitivity in detecting the presence of, or ToA of, other signals present at the same port of a circulator from which the isolation leakage signal flows to the error correction component.

Abstract: The described technology is generally directed towards scheduling, by a distributed unit, the injection of custom traffic (signals/data) by a radio unit into a radio unit communications path. The scheduling can be such that the custom traffic can be interleaved with to live-air and/or non-live-air traffic, for example. The radio unit can request unscheduled physical resource blocks for custom traffic to be inserted by the radio unit, and the distributed unit can communicate the timing and scheduling (identify the unscheduled physical resource blocks) to the radio unit in response to the request. The custom traffic is configured to perform some action by the radio unit, such as to perform antenna calibration, to perform test and measurement operations to obtain performance data, and the like. Performance data can be used, for example, to modify operating parameters of the radio unit to improve performance of the radio unit.

Abstract: A system can comprise a radio unit comprising a digital front end chain. The system can further comprise a tap point disposed within the digital front end chain, wherein the tap point is configured to time align a signal at the tap point with a system time of the radio unit. The system can further comprise a first hardware component that is configured to selectively read the signal at the tap point to produce a read signal. The system can further comprise a second hardware component that is configured to store the read signal.

Abstract: Technology described herein can detect and statistically analyze frequency domain power data for enabling real-time adjustment of one or more parameters of a radio system. In an embodiment, a system can comprise a processor and a read circuit communicatively coupled to the processor, wherein the processor controls the read circuit to read power data in a frequency domain from a radio system, and an analysis component communicatively coupled to the processor and that compares the power data in the frequency domain to a power threshold, wherein, based on a result of the power data being compared to the power threshold, the analysis component sorts the power data into bins at a storage component communicatively coupled to the processor. In one or more embodiments, power data in the frequency domain is collected at a frequency of a subcarrier and/or at a frequency between subcarriers.

Abstract: Technology described herein can gather time domain power data for enabling real-time adjustment of one or more parameters of a radio system. In an embodiment, a system can comprise a processor that is configured to control collection of power data from a radio system, a read circuit communicatively coupled to the processor and controlled by the processor to read, at the radio system, the power data in a time domain, across at least a portion of a downlink chain or an uplink chain of the radio system, along a selected time range that is defined by a specified upper limit of time and a specified lower limit of time, and a memory communicatively coupled to the processor and that receives and stores the power data as stored power data in the time domain from the read circuit.

Abstract: An error correction component and ?T?M compensation function determine correction factors from a feedback signal to use by digital predistortion to cancel distortion caused by a power amplifier and also determine correction factors that may be used to determine Time of Arrival of an isolation leakage signal. Correction factors may be stored in, or retrieved from, multiple ?T?M functions, which may be part of an ASIC along with the error correction component. The isolation leakage signal may be canceled within the error correction component, resulting in a leakage residual signal that may facilitate determining the ToA of the leakage signal. Cancelling the isolation leakage signal facilitates better sensitivity in detecting the presence of, or ToA of, other signals present at the same port of a circulator from which the isolation leakage signal flows to the error correction component.

Abstract: Technology described herein can gather frequency domain power data for enabling real-time adjustment of one or more parameters of a radio system. In an embodiment, a system can comprise a processor that is configured to control collection of power data relative to a subcarrier of a radio system, a read circuit communicatively coupled to the processor and controlled by the processor to read, at the radio system, the power data in a frequency domain, relative to the subcarrier, along a selected time range that is defined by an upper limit of time and a lower limit of time, and a memory communicatively coupled to the processor and that receives and stores the power data in the frequency domain from the read circuit. In one or more embodiments, power data in the frequency domain is collected at a frequency of a subcarrier and/or at a frequency between subcarriers.

Abstract: Technology described herein can gather and statistically analyze time domain power data for enabling real-time adjustment of one or more parameters of a radio system. In an embodiment, a system can comprise a processor and a read circuit communicatively coupled to the processor, wherein the processor controls the read circuit to read power data in a time domain from a radio system, and an analysis component communicatively coupled to the processor, wherein the analysis component compares the power data in the time domain to a power threshold, and wherein, based on a result of the power data being compared to the power threshold, the analysis component sorts the power data into bins at a storage component communicatively coupled to the processor.

Abstract: Embodiments of a dielectric waveguide body comprising an internal reflection surface configured to redirect mmWave radio signals propagating within the waveguide body such that mmWave radio signals emitted by an antenna are redirected to generate a main beam and at least one sidelobe.

Abstract: An apparatus includes a transceiver circuit, an antenna and a focus array. The transceiver circuit may have a plurality of fed channels configured to generate a plurality of signals. The antenna may have a plurality of antenna arrays configured to generate one or more beams in response to the signals. Each antenna array may (i) have a plurality of subarrays and (ii) be coupled to the fed channels of the transceiver circuit. The focus array may have a plurality of focal zones configured to reflect the beams into a beam zone. Each beam may be steerable by the antenna to one of the focal zones at a time. The focal zones may redirect the beams to a plurality of locations within the beam zone.

Abstract: An apparatus includes a transceiver circuit, an antenna and a focus array. The transceiver circuit may have a plurality of fed channels configured to generate a plurality of signals. The antenna may have a plurality of antenna arrays configured to generate one or more beams in response to the signals. Each antenna array may (i) have a plurality of subarrays and (ii) be coupled to the fed channels of the transceiver circuit. The focus array may have a plurality of focal zones configured to reflect the beams into a beam zone. Each beam may be steerable by the antenna to one of the focal zones at a time. The focal zones may redirect the beams to a plurality of locations within the beam zone.

Abstract: An apparatus includes a transceiver circuit, an antenna and a focus array. The transceiver circuit may have a plurality of fed channels configured to generate a plurality of signals. The antenna may have a plurality of antenna arrays configured to generate one or more beams in response to the signals. Each antenna array may (i) have a plurality of subarrays and (ii) be coupled to the fed channels of the transceiver circuit. The focus array may have a plurality of focal zones configured to reflect the beams into a beam zone. Each beam may be steerable by the antenna to one of the focal zones at a time. The focal zones may redirect the beams to a plurality of locations within the beam zone.

Abstract: An apparatus includes a transceiver circuit, an antenna and a focus array. The transceiver circuit may have a plurality of fed channels configured to generate a plurality of signals. The antenna may have a plurality of antenna arrays configured to generate one or more beams in response to the signals. Each antenna array may (i) have a plurality of subarrays and (ii) be coupled to the fed channels of the transceiver circuit. The focus array may have a plurality of focal zones configured to reflect the beams into a beam zone. Each beam may be steerable by the antenna to one of the focal zones at a time. The focal zones may redirect the beams to a plurality of locations within the beam zone.

Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a method for comparing a received signal from a first antenna to a reference signal transmitted by a second antenna, determining from the comparison one or more compensation parameters, and tuning a compensation circuit according to the one or more compensation parameters, where the one or more compensations parameters configure the compensation circuit to reduce mutual coupling between the first and second antennas. Other embodiments are disclosed.

Abstract: Embodiments are disclosed of a switchplexer for performing test operations on a radio device. The switchplexer comprises a plurality of test ports corresponding to a plurality of radio device ports and a plurality of switches for routing test signals between the individual test ports. Processing logic is disclosed for controlling actuation of the switches to route test signals between individual test ports. The switchplexer disclosed herein may be incorporated into a mobile test device for self-test operations or may be used in a manufacturing or maintenance facility for testing and calibration operations.

Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a method for comparing a received signal from a first antenna to a reference signal transmitted by a second antenna, determining from the comparison one or more compensation parameters, and tuning a compensation circuit according to the one or more compensation parameters, where the one or more compensations parameters configure the compensation circuit to reduce mutual coupling between the first and second antennas. Other embodiments are disclosed.

Abstract: Embodiments of the disclosure provide systems and methods for improving user equipment performance in up-link transmission by implementing antenna selection based on channel measurements in the down-link. In various embodiments, first and second antennas are used to receive desired signals on a downlink and to transmit signals on an uplink. A plurality of signals received on the downlink are used to generate a plurality of antenna parameter measurements derived from multiple correlations of a known reference sequence of data signals transmitted on the downlink. The plurality of antenna parameter measurements is then used to select either the first antenna or the second antenna for transmitting data signals by said user equipment device on the uplink.

Abstract: An symmetric solar collector system is disclosed which comprises one or more reflectors in the shape of an asymmetrical vertically-biased parabolic trough, which allows for the reflectors to be stacked vertically, and have a zero footprint. The reflectors each include a reinforced absorber comprising two or more tubes attached to each other in truss-like fashion, with a sag to length ratio of less than about 1/500. In addition, although the vertically-biased trough shape lessens the amount of surface area available for water or ice to accumulate, the reflector surface is partially coated with a material that is highly absorptive of solar wavelengths, and thus, heats any accumulated water/ice to the point of evaporation.