Abstract: One embodiment is directed to a system in which an end node and a boundary link optimizer node are communicatively coupled to an ETHERNET network. The end node is communicatively coupled to the ETHERNET network using a boundary link that is connected to an edge of the ETHERNET network. A virtual local area network (VLAN) is established in the ETHERNET network that includes a first end point at the edge of the ETHERNET network and a second end point at the boundary link optimizer node. The boundary link optimizer node is configured to: receive ETHERNET packets that include data for the plurality of streams of digital samples; extract the data for the plurality of streams from the received ETHERNET packets; bundle the data for the streams of digital samples; and communicate, to the end node over the VLAN, the bundled data for the streams of digital samples in ETHERNET packets.

Abstract: An apparatus, system, and method are provided for configuring a serializer/deserializer (SerDes) based on evaluation of a probe signal. Included is circuitry configured to detect at least one of a probe signal or a reflection resulting from the probe signal. Such probe signal and/or reflection is evaluated such that at least one configurable aspect of the apparatus may be set, based on the evaluation.

Abstract: An apparatus comprises: radio frequency (RF) transceiver circuitry for electrical coupling to an antenna and including: a local oscillator (LO) circuit configured to generate a LO signal, and a mixer circuit configured to mix a CW tone signal with the LO signal; a measurement receiver path configured to measure an antenna signal, wherein the antenna signal includes the CW tone signal mixed with the LO signal; and baseband processing circuitry electrically coupled to the measurement receiver path and configured to adjust a clock duty ratio of the LO signal to reduce one or more counter intermodulation (CIM) signals in the antenna signal.

Abstract: A time de-interleaving circuit and a time de-interleaving method perform a time de-interleaving process through writing and reading a plurality of sets of time interleaved data into and from a first memory and a second memory. The time de-interleaving method includes: selecting a set of first time interleaved data and a set of second time interleaved data from the plurality of sets of time interleaved data, the set of first time interleaved data and the set of second time interleaved data having the same delay length; writing the set of first time interleaved data into the first memory; and writing the set of second time interleaved data into the second memory. The first memory utilizes a bit length as an access unit, and the second memory has an access unit smaller than the bit width.

Abstract: This invention relates to the use of frequency synchronization accuracy as an additional quality metric for mobile call handover between base stations. Call handover is of major importance within any mobile network; without checking frequency synchronization before handover dropped calls and interrupted communication can result.

Abstract: A network unit includes a non-linear precoder for jointly pre-processing transmit samples to be transmitted over respective communication channels for crosstalk mitigation. The non-linear precoder includes a first non-linear precoding stage configured to operate according to a first triangular precoding matrix and including a modulo function, followed by a second linear precoding stage configured to operate according to a second precoding matrix. The network unit further includes a first pilot signal generator configured to generate first pilot signals for pre-processing by the second precoding stage only to yield partially-precoded pilot signals for further transmission over the respective communication channels, and a controller configured to update the second precoding matrix based on first error measurements performed during the transmission of the partially-precoded pilot signals over the respective communication channels while keeping the first precoding matrix unaltered.

Abstract: Disclosed is hybrid communication in which a first message from a guided surface wave probe node is embedded in a guided surface wave, and a second message from a guided surface wave receive node uses a different messaging mechanism.

Abstract: An integrated circuit (IC) includes a sampling circuit configured to sample a first signal based on a sampling position signal received from an eye-scan controller to generate a sequence of sampled symbols. A data checker is configured to provide an error signal including an indication of errors in the sequence of sampled symbols to the eye-scan controller. The eye-scan controller is configured to sweep from an initial position of a unit interval (UI) of the first signal to a left sweep end to generate a first sequence of sampling positions and sweep from the initial position to a right sweep end to generate a second sequence of sampling positions. The left and right sweep ends are determined based on first and second sequences of bit error rate (BERs) corresponding to the first and second sequences of sampling positions respectively.

Abstract: Embodiments of the present disclosure provide a wireless communications method, user equipment, a base station and a system, and relate to the field of wireless communications. The method includes: acquiring a frequency domain spreading factor, a symbol-level spreading factor and a transmission time interval-level spreading factor; and performing frequency domain spreading, symbol-level spreading and transmission time interval-level spreading on first to-be-sent information respectively according to the acquired spreading factors and sending first spread information; or, despreading, according to the acquired spreading factors, second spread information sent by a base station.

Abstract: A method is for processing an analog channel signal from a transmission channel. The method may include converting of the analog channel signal to a digital channel signal, and performing a channel estimation digital processing of the digital channel signal. The channel estimation digital processing may include for at least one frame, generating transfer functions of the transmission channel, the transfer functions respectively associated with reference symbols of the frame, and averaging processing of the transfer functions to generate an average transfer function. The method may include decoding of symbols of the frame following the reference symbols using the average transfer function.

Abstract: Circuits, methods, and apparatus that may provide a wired communication path that is simple to implement and does not greatly increase costs and complexity. One example may provide an electronic device having wired data path, where the wired data path is implemented using a power connection. Data from a wireless signal path may be routed and combined with a power supply voltage. This combined signal may then be provided to, or received from, a second electronic device over the power connection. The combined signal may be provided at a power connection that may include a power and ground path, paths for multiple power supplies, or paths for multiple power supplies and ground.

Abstract: An object of the present invention is to generate a soft estimation value where missing of bit information is avoided and to implement turbo equalization processing in a wireless transmission apparatus and a wireless transmission system where termination processing is not performed in an error correction coding part and interleave processing over frames is performed. A wireless transmission system of the present invention includes a transmission apparatus and a reception apparatus. The transmission apparatus includes an error correction coding unit, a first interleave unit, a second interleave unit, and a digital modulation unit. The reception apparatus includes a unit that detects a reception signal, a demapper unit, a second deinterleave unit, a unit to store a received bit logarithm of likelihood ratio in a frame buffer, a frequency interleaver data extraction part that extracts data of a predetermined period, a decoding part, and a hard decision part.

Abstract: Embodiments of the present disclosure provide a method and apparatus for determining a nonlinear characteristic and a system. The method for determining a nonlinear characteristic includes: determining a correction factor of a nonlinear item of a nonlinear model of a system to be measured according to an input and/or a parameter of the system to be measured; correcting the nonlinear item of a nonlinear model of the system to be measured by using the correction factor; and obtaining a nonlinear characteristic of the system to be measured according to the corrected nonlinear model. The nonlinear characteristic allows the input and/or the parameter of the system to be corrected to produce a corrected output. With the embodiments of the present disclosure, the nonlinear characteristic of the system to be measured under different inputs and/or parameters may be estimated, and accuracy of the estimation and applicability are improved.

Abstract: Systems and methods related to linear and efficient broadband power amplifiers are disclosed. In some embodiments, a method for amplifying a radio-frequency signal includes providing a Doherty amplifier circuit having a carrier amplification path and a peaking amplification path. The method includes receiving an radio-frequency signal and splitting the radio-frequency signal into a first portion and a second portion, the first portion provided to the carrier amplification path, the second portion provided to the peaking amplification path. The method further includes combining, using a balance to unbalance circuit, outputs of the carrier amplification path and the peaking amplification path to yield an amplified radio-frequency signal.

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding service data corresponding to each of a plurality of data transmission units, an encoder for encoding physical signaling data by a shortening scheme and a puncturing scheme, a mapper for mapping the encoded service data onto constellations, a frame builder for building at least one signal frame including preamble data, a modulator for modulating the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme, a transmitter for transmitting the broadcast signals carrying the at least one modulated signal frame.

Abstract: A universal asynchronous receiver/transmitter (UART) module is disclosed. The UART module may include a receiver unit being clocked by a programmable receiver clock configured to sample an incoming data signal and comprising a counter clocked by said receiver clock, wherein the counter is reset to start counting with every falling edge of the data signal and to trigger a BRK detection signal if the counter reaches a programmable threshold value.

Abstract: A method for estimating a channel state of an audio/video signal includes: estimating a first response and a second response according to the audio/video signal, wherein the first response corresponds to an echo path and the second response corresponds to a reference path; calculating a plurality of phase differences at a plurality of time points between the first response and the second response; determining whether the echo path is a Doppler path according to the phase differences; and when it is determined that the echo path is the Doppler path, calculating a phase rotation frequency of the Doppler path according to a difference between at least two of the phase differences.

Abstract: The disclosure is directed to a method of multiuser superposition transmission (MUST) method and a transmitter using the same method. In one of the exemplary embodiments, the disclosure is directed to a method of multiuser superposition transmission (MUST) method used by a base station. The method would include not limited to: determining a first bit stream to be transmitted; encoding the first bit stream to generate an encoded first bit stream which has a plurality of binary levels per symbol; determining a first encoding rate for each of the binary levels of the encoded first bit stream, wherein at least two of the levels of the encoded first bit stream have a different code rate; and attaching a first plurality of redundancy bits based on the first encoding rate.

Abstract: Embodiments of the invention provide a decoder for decoding a signal represented by a vector of information symbols received through a transmission channel in a communication system, said the transmission system being represented by a channel state matrix, said information symbols being selected from a given set of values carrying a set of information bits, wherein said decoder comprises: a division unit (202) configured to divide the channel state matrix into a number of sub-blocks of column vectors, in accordance with a division of said vector of information symbols into a number of sub-vectors; a permutation unit (203) configured to determine a set of permuted channel state matrices by permuting said sub-blocks of column vectors, the permutation unit (203) being further configured to select at least one permuted channel state matrix among said set of permuted channel state matrices according to a selection criterion; a sub-block decoding unit (207) configured to determine a transformed signal from said

Abstract: Methods, systems, and devices for wireless communication are described. A wireless communication device may receive multiple data streams from one or more users, associate the multiple data streams with different user groups, and identify modulation symbols for the users after reducing signal contribution from modulation symbols associated with different user groups. For example, the device may receive a signal including multiple spatial streams, partition the data streams into different user groups, and determine a set of sequences from channel characteristics associated with the respective user groups. The wireless communication device may then apply the sequences to the received signal and to values associated with the channel characteristics. Subsets of values may be selected following the application of the sequences, and from the subsets of values, the wireless communication device may identify the sets of modulation symbols associated with one or more of the user groups.