Abstract: In some embodiments, a method includes characterizing a plurality of channels, each of the plurality of channels being a channel between a location and a respective one of the plurality of communication interfaces; for each of the plurality of communication interfaces, supplying signals to the communication interface and detecting interference that occurs at the location as a result of emissions radiated from the plurality of communication interface while the signals are supplied thereto; for each of the plurality of communication interfaces, determining an estimate of interference that would occur at the location as a result of emissions radiated from the communication interface while the signals are supplied thereto, based at least in part on the characterization of the channel between the location and the communication interface; and for each of the plurality of communication interfaces, comparing the estimate of interference that would occur at the location to the detected interference that occurs at the

Abstract: An access node of a communication system comprises a plurality of transmitters adapted for communication with at least one receiver. The access node is operative to simultaneously estimate channel coefficients between multiple ones of the transmitters and the receiver, and to utilize the estimated channel coefficients to control at least one data signal sent by at least one of the multiple transmitters to the receiver. In the process of simultaneously estimating the channel coefficients, the access node transmits a plurality of distinct probing signals, each of which is generated based on a distinct combination of a common probing sequence and a selected one of a plurality of different frequency expansions. The access node may comprise at least a portion of at least one central office of a DSL communication system.

Abstract: According to an embodiment of a communication device, the communication device includes communication circuitry configured to communicate via a plurality of transmission channels. The communication circuitry includes crosstalk reduction circuitry to reduce crosstalk for a part of the plurality of transmission channels by joint processing of data of the part of the transmission channels. This part is selected from the plurality of transmission channels depending on a grouping of the transmission channels into at least two groups. Each of the at least two groups is assigned a target bit rate. The target bit rate differs for different groups.

Abstract: A method and a device for processing a channel are disclosed. The channel is represented by a MIMO (multiple-input-multiple-output) system having first coefficients associated with transmission lines and second coefficients in particular associated with crosstalk. The method includes (i) clustering of the coefficients of the second coefficients; and (ii) processing of the clustered coefficients.

Abstract: Embodiments related to far-end cross-talk coefficient updating in vector transmission systems are depicted and described herein.

Abstract: Systems and methods for providing an efficient mechanism for transmitting interference vectors to communications terminals, such as user equipments (UEs), in an over the air radio telecommunications network with spatially multiplexed multiple user multiple input multiple output (MU-MIMO) capability. A new pre-coding information downlink channel is defined. Messages containing semi-persistent interference vector information for MU-MIMO user equipment are defined and transmitted over the new channel in a manner that allows infrequent transmission and efficient use of resources. Using the interference vectors and applying inter-user interference adaptation to received messages, the UEs may receive spatially multiplexed MIMO transmissions and actively remove inter-user interference after reception of the messages. Compression of the pre-coding vector information transmitted over the pre-coding information channel may result in additional increases in efficiency in the system.

Abstract: A method and apparatus are disclosed for canceling cross-talk in a frequency-division multiplexed communication system. The disclosed frequency-division multiplexed communication system employs multiple carriers having overlapping channels and provides an improved cross-talk cancellation mechanism to address the resulting interference. Bandwidth compression is achieved using n level amplitude modulation in each frequency band. An FDM receiver is also disclosed that decomposes the received broadband signal into each of its respective frequency bands and returns the signal to baseband in the analog domain. Analog requirements are relaxed by removing cross-talk from adjacent RF channels, from image bands, and minimizing the performance degradation caused by In-phase and Quadrature-phase (I/Q) phase and gain mismatches in modulators and demodulators. The disclosed transmitter or receiver (or both) can be fabricated on a single integrated circuit.

Abstract: An access node of a communication system is configured to control crosstalk between channels of the system. Vectoring circuitry in the access node estimates crosstalk between channels of the system, generates a compressed representation of the crosstalk estimates, and generates compensated signals based on the compressed representation of the crosstalk estimates. The compressed representation comprises a value array and an index array, with the value array comprising selected values from each of a plurality of rows of a matrix representation of the crosstalk estimates, and the index array identifying locations of the selected values in the matrix representation of the crosstalk estimates. The compensated signals may be pre-compensated signals or post-compensated signals.

Abstract: Systems and methods are provided herein for interfacing a first digital device with a second digital device. An exemplary method includes the steps of combining one of a plurality of digital content channels and a back channel to form a composite channel, the back channel for transmitting information from the second multi-media digital device to the first multi-media digital device, converting a digital content channel and the composite channel from the first digital device into a plurality of single-ended digital content channels, transporting the plurality of single-ended digital content channels from the first digital device to the second digital device, and converting the single-ended digital content channels back into the digital content channel and the composite channel that are supplied to the second digital device. Cross-talk interference is reduced between the back channel and one of the plurality of digital content channels via a cross-talk cancellation filter.

Abstract: Embodiments of system and method for coordination among neighboring networks for communications over shared physical medium are provided. In one aspect, a method comprises determining, by a first domain master of a first network domain, a first number of network nodes of the first network domain that interfere with data transmission on the physical medium by at least one network node of at least one other network domain, or a second number of network nodes of the at least one other network domain that interfere with data transmission on the physical medium by at least one network node of the first network domain. The method further comprises causing, by the first domain master, one or more network nodes of the first network domain to transmit data during one of a plurality of non-overlapping time slots of a MAC cycle.

Abstract: UE that are able to cancel interference from CRS, a PDSCH, a PDCCH, or a PCFICH may do so without explicitly signaling the capability to the serving eNB. The serving eNB may transmit to the UE a plurality of cell identifiers to indicate from which cells interference should be canceled. The UE receives CRS, PDSCH, PDCCH, or PCFICH from the serving eNB and cancels CRS, PDSCH, PDCCH, or PCFICH interference, respectively from the signal received from the eNB. The UE cancels the interference from the cells that correspond to the cell identifiers. The UE may then transmit a report to the eNB with a quality measurement without the interference.

Abstract: The method is used for estimating a Far-End Crosstalk channel imposed by a first line onto a second line in a two-line pair scenario, and includes: activating a first line independently, and obtaining a line noise of the first line as a first line noise; activating the first line and a second line, and obtaining a line noise of the first line as a second line noise; and determining a Far-End Crosstalk channel imposed by the second line onto the first line to be: (the second line noise?the first line noise)/a transmit power spectral density of the second line, where the transmit power spectral density of the second line is known.

Abstract: Synchronous CDMA/spread spectrum methods, devices, and systems are used to suppress crosstalk in clock-forwarded on-chip interconnects. Transmitting a spread spectrum signal across on-chip interconnects for recovery at the terminus permit integrated chip designers to overcome the effects of capacitive cross-talk between adjacent data bus lines. The methods, devices, and systems provided herein improve cross-talk immunity between adjacent high speed signal lines by applying synchronous CDMA spread spectrum techniques to some or all of the high speed signal lines. Other methods, devices, and systems provided herein apply synchronous CDMA spread spectrum techniques to the concept of sending phantom signals to reduce the number of signal lines used to carry data.

Abstract: In one embodiment, the line termination card includes a data output terminal configured to output a data sequence. The card further includes a vectoring entity configured to parse and encode the data sequence into frequency samples according to a carrier loading parameter, configured to scale the frequency samples into scaled frequency samples according to a carrier scaling parameter, and, configured to process the scaled frequency samples for crosstalk compensation. A controller is configured to adjust the carrier loading parameter and the carrier scaling parameter, and a forwarder is coupled to the data output terminal and to the controller. The forwarder is configured to forward the data sequence, the carrier loading parameter and the carrier scaling parameter towards a further line termination card.

Abstract: A method for communication includes allocating time intervals for a first communication session over a first connection between a wireless terminal and a base station of a long-range wireless data network, which operates in accordance with a first protocol defining time frames having downlink and uplink sub-frames. Time slots are allocated for a second communication session over a second connection between the terminal and a peripheral wireless device, which operates in accordance with a second, short-range time-slotted protocol, which is different from the first protocol and has a retransmission mechanism. The time slots are synchronized with the downlink and uplink sub-frames defined by the BS. Operation of the second connection is inhibited during some of the time slots that overlap the downlink sub-frames, so as to invoke the retransmission mechanism and cause the terminal to transmit only during the time slots that do not overlap the downlink sub-frames.

Abstract: Apparatus and method for cross phase modulation recovery are disclosed. An apparatus for cross phase modulation recovery may include M stages of cross phase modulation recovering devices connected in cascade, wherein M?2, and each stage of the M-stages of cross phase modulation recovering devices is configured to perform cross phase modulation recovery to a polarization de-multiplexed signal input into the each stage. An optical coherent receiver including such an apparatus for cross phase modulation recovery is also disclosed.

Abstract: Methods and apparatus are disclosed, such as those involving an inter-chip interface configured to receive and process electronic data. One such interface includes a receiver circuit that includes a clock tree configured to receive a clock signal at a clock tree input. The clock tree distributes a plurality of clock signals delayed from the clock signal such that one or more of the clock signals have a delay different from the delays of the other clock signals. The receiver circuit further includes a plurality of data input latches configured to receive a plurality of data elements over two or more different points in time. This configuration at least partially reduces crosstalk and simultaneous switching output noise.

Abstract: In an embodiment, a method of compensating crosstalk on a plurality of transmission links is disclosed. The method includes providing first values depending on crosstalk among a plurality of transmission links. Each first value corresponds to one of a plurality of crosstalk channels, and each crosstalk channel represents signal transfer from one of the plurality of the transmission links to a different one of the plurality of transmission links. Second values specific to the transmission links are provided. A number of crosstalk channels are selected from a plurality of crosstalk channels interfering with signal transmission on transmissions links. The selecting depends on quotients of the first values and the second values.

Abstract: An access node of a communication system is configured to generate denoised crosstalk estimates for respective channels of the system and to adjust power levels of signals transmitted over one or more of the channels based on the denoised crosstalk estimates. The access node obtains crosstalk estimates for the respective channels. The access node is configured to convert the crosstalk estimate for a given channel to a discrete transform domain, to substantially eliminate in the discrete transform domain one or more designated portions of the crosstalk estimate for the given channel, and to convert remaining portions of the crosstalk estimate for the given channel back from the discrete transform domain to obtain the corresponding denoised crosstalk estimate for the given channel. The access node may comprise one or more central offices of a DSL communication system.

Abstract: In a signal processor, a sampling arrangement (SH11, S12, SH13, ADC1) samples at least a first signal (YA) and a second signal (UA, VA) so as to obtain sampled first signal (YD1) and a sampled second signal (UD1, VD1), respectively. A folding compensator (LPF11, LPF12, LPF13, SUB11, SUB12, MUX12) compensates for a folding component in the sampled first signal (YD1) on the basis of a spectral portion of the sampled second signal (UD1, VD1) that is substantially free of components that originate from the second signal (UA, VA).

Abstract: Techniques are disclosed for compensating for crosstalk using adaptation of data signals transmitted over respective channels of a communication system. For example, a method includes the following steps. A first set of estimated measures of crosstalk is obtained for at least a selected portion of a plurality of communication channels over which data signals are to be transmitted from a transmitter to at least a selected portion of a plurality of receivers. A first set of data signals based on the first set of estimated measures of crosstalk is adapted to generate a first set of adjusted data signals. The first set of adjusted data signals is transmitted to corresponding ones of the plurality of receivers. A second set of estimated measures of crosstalk is obtained for the selected portion of the plurality of communication channels. A second set of data signals for transmission based on the second set of estimated measures of crosstalk is adapted to generate a second set of adjusted data signals.

Abstract: A method and apparatus for reducing crosstalk between digital subscriber lines includes: firstly, determining a parameter of VDSL (Very-high-bit-rate Digital Subscriber Line); secondly, determining frequency range of signal to be transmitted in the line and transmitting signal in the corresponding line according to the determined frequency range. This mainly means reducing or turning off the transmitting of the signal at a high frequency band and only using low frequency band for data transmitting in the case that the line parameter exceeds the predetermined threshold, so that crosstalk to neighboring lines is reduced. The present invention can effectively overcome the crosstalk against neighboring lines during the channel discovery phase of digital subscriber line and the transfer performance of the digital subscriber line in operation can be guaranteed. The present invention is realized based on the established standard, so the present invention is simple and easy to implement.

Abstract: A method and a device for data processing. The data processing method utilizes at least two probing coefficients in a canceller and/or precompensator in combination with SNR feedback to process data in the canceller and/or in the precompensator.

Abstract: Signals propagating in one communication channel can generate crosstalk interference in another communication channel. A crosstalk cancellation device can process the signals causing the crosstalk interference and generate a crosstalk cancellation signal that can compensate for the crosstalk when applied to the channel receiving crosstalk interference. The crosstalk cancellation device can include a model of the crosstalk effect that generates a signal emulating the actual crosstalk both in form an in timing. The crosstalk cancellation device can include a controller that monitors crosstalk-compensated communication signals and adjusts the model to enhance crosstalk cancellation performance. The crosstalk cancellation device can have a mode of self configuration or calibration in which defined test signals can be transmitted on the crosstalk-generating channel and the crosstalk-receiving channel.

Abstract: A method to enhance coverage and/or throughput in a heterogeneous wireless network includes detecting interference between a neighboring cell and a serving cell. The method also includes cancelling the interference using an adaptive technique based on whether the interference has colliding Common Reference Signal (CRS) tones.

Abstract: A data transmission/reception system includes a data transmission circuit and a data reception circuit. The data transmission circuit includes a pattern detection unit configured to detect a pattern of data to be loaded on inner lines among a plurality of transmission lines and generate an inversion signal, and a transmission unit configured to transmit data to the plurality of transmission lines and the inversion signal to an inversion line, and invert some of the data to be loaded on the inner lines in response to the inversion signal. The data reception circuit is configured to invert the data inverted by the transmission unit among the data transferred to the plurality of transmission lines, in response to the inversion signal.

Abstract: The present invention relates to a method for configuring communication parameters for communication through a first multi-carrier data communication path (DPx) established over a first subscriber line (Lx), and comprising the steps of: detecting a request (init_req, join_req(y)) whereby a second multi-carrier data communication path (DPy) is to be initialized over a second subscriber line (Ly), A method according to the invention further comprises the steps of: postponing initialization of the second data communication path, acquiring crosstalk characteristics (XT_char_xy(k)) from the second subscriber line towards the first subscriber line, deriving from the crosstalk characteristics a parameter value (VN_x(k)) characterizing a virtual noise model used for communication over the first data communication path, and applying the parameter value for further communication over the first data communication path, and resuming initialization of the second data communication path.

Abstract: In one aspect, a method to enhance coverage in a heterogeneous wireless network wireless communication is disclosed. The method includes generating a reference signal indicating a plurality of transmit antenna ports and generating modulation symbols. Modulation symbols are assigned to each of the plurality of transmit antenna ports, in accordance with a spatial diversity coding scheme for the plurality of transmit antenna ports. At least one of the modulation symbols assigned to at least one of the plurality of transmit antenna ports is muted prior to transmission in accordance with the spatial diversity coding scheme. The non-muted modulation symbols and the reference signal are transmitted on the other of the plurality of transmit antenna ports.

Abstract: A method for eliminating DSL crosstalk is provided. The method includes steps of a coordinated transceiver device notifies an existing online opposite device of a signal sent to a new online opposite device; the coordinated transceiver device receives a calculation result that is obtained by the existing online opposite device based on a detected error signal and the signal sent to the new online opposite device, the coordinated transceiver device updates the coefficient of a vector pre-encoder according to the calculation result. A computer program tangibly embodied on a computer-readable storage medium, computer-readable storage medium, DSL opposite device, DSL coordinated transceiver device and system for eliminating the DSL crosstalk are also provided to implement the method. The provided method may reduce the duration of the crosstalk that the new online opposite device generates on the existing online opposite device, and enable the new online opposite device to join a vector group faster.

Abstract: Embodiments of a central scheduler and method for adaptive clustering are generally described herein. In some embodiments, a cluster of transmitter-receiver pairs is selected based on minimum singular values calculated from direct channel information and the selected pairs are instructed to perform an interference alignment technique.

Abstract: A system and method for performing echo suppression on a server in browser-based online audio conferences without downloading or installing software on a participant's computing device is disclosed. Streams of audio communication data from the participants in an audio conference are received at the server. An echo suppression application determines the first party that speaks by analyzing the streams to locate speech data, and assigns that party as the “owner” of the audio channel. The speech data is sent to the other participants in the conference. The application then determines whether newly received audio from the owner of the channel is new speech; if so, then the party remains the owner of the channel, and the new speech data is also sent to the other parties in the conference. The channel is surrendered if no new speech is received from the owner in a defined period, and the next party that speaks becomes the new owner of the channel. The other audio data from the participants is replaced by silence.

Abstract: A method includes operating an integrated echo canceller and speech codec for voice-over internet protocol. An apparatus includes an echo canceller and a speech codec, wherein the speech codec includes a decoder and an encoder, and wherein the echo canceller and the speech codec are integrated for voice-over-internet protocol.

Abstract: In a timing analysis apparatus for use in a semiconductor integrated circuit, which analyzes operation timing of a semiconductor integrated circuit having a logic gate circuit including a plurality of logic gates, a controller detects at least one of a power supply voltage and a ground voltage of a power supply, decomposes the noise waveform into frequency components, classifies the frequency components into low-frequency components lower than a predetermined threshold frequency and high-frequency components higher than the threshold frequency, calculates a static delay time of each of the logic gates due to the low-frequency components, calculates a dynamic delay time of each of the logic gates due to the high-frequency components, and determines a delay time of each of the logic gates by synthesizing the calculated respective delay times.

Abstract: Cross-talk is canceled in a cooperative wireless relay network that includes a base station (BS), a relay station (RS), and a mobile station (MS). A coupling channel between a transmit antenna and a receive antenna colocated at the RS is estimated. Cross-talk interference determination is based on a previous transmitted signal by the transmit antenna, and the coupling channel. The cross-talk interference is subtracted from a currently received signal by the receive antenna to obtain a residual signal. The residual signal is then transmitted as a next transmitted signal by the transmit antenna.

Abstract: A method, wherein the following steps are iteratively repeated: providing each of a plurality of signals at a respective one of a plurality of transmission links; transmitting each of the plurality of signals over the respective one of the plurality of transmission links; and measuring signal-to-noise ratios of the plurality of signals transmitted over the plurality of transmission links, wherein an input power level of each of the plurality of signals is set such that the signal-to-noise ratios of the plurality of signals converge when measured after their transmission over the plurality of transmission links.

Abstract: A method and apparatus for spectrum management in an xDSL system are disclosed. The method mainly include: determining a transmit PSD mask according to a crosstalk status of a line; performing IWF operation using the transmit PSD mask; and dynamically managing line spectrum according to the result of the IWF operation. Therefore, various embodiments of the present invention allow the DSLAM performance to approximate the OSM performance without the need for a center controller and with a rather simple algorithm in a severe crosstalk scenario. Moreover, the embodiments of the present invention may help to simply the design of DSLAM optimization system and achieve a proper balance between the DSLAM performance and the complexity.

Abstract: System and method for processing communication signals in a communication system having a detector for detecting a parameter of a communication signal. A communication signal is provided to a non-linear processor (NLP) adapted to examine the signal and to decide whether or not to enter an active state based upon a parameter of the signal. If the NLP enters an active state, the NLP performs non-linear processing on the signal. The NLP communicates to the detector whether the NLP is active or inactive. If the NLP is active, a processing step of the detector is disabled.

Abstract: Signals in a multi-channel, impaired communication system are post-processed at the receiver. A triangular matrix Decision Feedback Demodulator (DFD) at the receiver extracts channels without requiring delivery of receiver parameters to the transmitter. Multi-Input Multi-Output (MIMO) processing matrices and DFD parameters are computed by first applying matrix transformations to diagonalize the noise covariance matrix of the multiple channels received at the receiver. QR decompositions (i.e., decompositions into orthogonal and triangular matrices) are then applied to the main channels to obtain triangular channel matrices. The noise-diagonalizing transformations and QR decompositions are then combined to form the MIMO postprocessing matrices and DFD parameters. MIMO postprocessing matrices and DFD parameters are computed from training data and then adapted during live data transmission.

Abstract: A remote radio head unit (RRU) system for multiple operating frequency bands, multi-channels, driven by a single or more wide band power amplifiers. More specifically, the present invention enables multiple-bands RRU to use fewer power amplifers in order to reduce size and cost of the multi-band RRU. The present invention is based on the method of using duplexers and/or interference cancellation system technique to increase the isolation between the transmitter signal and receiver signal of the RRU.

Abstract: Certain embodiments of the disclosure propose a method for cancelling co-channel interference (self-jamming) generated by nonlinearities in the radio-frequency (RF) front-end devices. The proposed method utilizes an adaptive non-linear filter to generate a distorted version of the transmitted signal. The self-jamming interference may be mitigated utilizing the distorted signal through adaptive cancellation.

Abstract: Combined echo and crosstalk cancellation is provided. Frequency domain adaptive filters are used to remove or reduce the effects of echo and crosstalk for a multi-channel and full-duplex communications system. Data from each transmit channel is buffered and converted to the frequency domain. The frequency domain data is multiplied by crosstalk coefficients to obtain a frequency domain correction signal for each channel. Adaptation of the crosstalk coefficients is based on correlations between the error signals and the data from each of the transmit channels. A single frequency domain transform engine, such as a Fast Fourier Transform engine, is employed for all calculations to save power and area.

Abstract: A method of reducing interference between two communication systems operating in adjacent frequency bands and coexisting in a communication device is provided, and the two communication systems are a first communication system using TDD and a second communication system which is content-based. The method includes deciding whether to perform an arbitration procedure on a downlink subframe of the first communication system according to a CINR of the first communication system and a RSSI of the second communication system; deciding whether to perform the arbitration procedure on an uplink subframe of the first communication system according to a transmit power of the first communication system and a RSSI value of the second communication system; and when deciding to perform the arbitration procedure on the downlink or uplink subframe, further deciding whether to send a specific packet to request one or more stations not to send packets to the second communication system.

Abstract: A device for reducing mutual crosstalk of a signal routed across a first line and a second signal routed across a second line, wherein by the mutual crosstalk at an output of the first line a first interfered signal may be obtained and at an output of the second line a second interfered signal may be obtained, comprising a modifier for modifying the first interfered signal that is interfered by crosstalk due to the second signal, and for modifying the second interfered signal that is interfered by crosstalk due to the first signal, wherein the modifier is adapted to model an interference due to the mutual crosstalk, and a combiner for combining the first interfered signal with the modified second interfered signal to obtain a first corrected signal and for combining the second interfered signal with the modified first interfered signal to obtain a second corrected signal.

Abstract: A crosstalk cancellation system and method is disclosed for use in a multi-channel communication system. Crosstalk which couples between channels is cancelled through use of an in-line FFE filter and in-line delay. A cross-connect system associated with each channel includes a cross-connect delay and cross-connect filter. The cross-connect system generates a cancellation signal for each of the channels, which is routed into a junction. The junction subtracts the cancellation signal from the received signal, which has also been delayed and filtered, to remove unwanted cross-talk. During training, cancellation magnitude is monitored at various delay offsets to determine which offset and corresponding filter coefficients, for each delay, maximizes cancellation. The filters are set with filter coefficients that maximize cancellation. The cross-connect delay with the maximum offset is set to zero and its calculated offset amount is established as the in-line delay offset.

Abstract: A system, method and apparatus for reducing a power consumed by a physical layer device (PHY). A length of a cable connecting the PHY to a link partner is determined. Based on the length, power provided to one or more components of the PHY, or any portion thereof, is reduced. The power provided is reduced while maintaining a level of reliability specified by a protocol governing operation of the PHY. The length can be determined using time-domain reflectometry (TDR) techniques. Any portion of an echo cancellation filter, a crosstalk filter, an equalizer, a precoder, an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), a forward error correction (FEC) decoder and/or an FEC coder can be powered-down or power-optimized to reduce the overall power consumed by the PHY. The protocol governing operation of the PHY can be IEEE 802.3.

Abstract: A transceiver having shared and discrete components forming a transmit path and a receive path configured to couple to a subscriber line for establishing a communication channel with a remote transceiver. The transceiver comprises a pseudo link manager coupled between the transmit and receive path components to manage pseudo links on the subscriber line prior to entry into a session with the remote transceiver. The pseudo link manager includes: a line monitor and a disruptor. The line monitor monitors the subscriber line, prior to initiating a session, for a received communication signal indicative of a pre-existing session on the remote transceiver. The disruptor transmits a disruptor signal over the subscriber line to the remote transceiver responsive to the detection by the monitor of the received communication signal; thereby disrupting the remote transmitter's pre-existing session and allowing a new session to be established with the remote transceiver.

Abstract: Example distributed DSLAMs to increase bandwidth in access networks are disclosed. An example DSLAM comprises a first distribution cable segment to couple an SAI to a first pedestal and to transport user data, a second distribution cable segment to couple the first pedestal to a second pedestal and to transport a first portion of the user data from the first pedestal to the second pedestal, the second cable segment comprising a pair of DSL-based signals bonded together, a drop cable to couple the first pedestal to a customer premises and to transport a second portion of the user data to the customer premises, and a switch at the first pedestal to route the first portion of the user data between the first and second cable segments and to route the second portion of the user data between the first cable segment and the drop cable.

Abstract: In a method and a device for data processing at a network component the following steps are carried out: a multiple-input-multiple-output processing is conducted and based on such processing a crosstalk and/or interference is at least partially reduced or cancelled. The device may be incorporated into a communication system.

Abstract: The present invention relates to a method for attenuating near-end crosstalk between a remote received signal and a locally transmitted signal in a bidirectional signal transmission wherein said method comprises the step of producing an analog automatic feedback-driven correction loop in order to provide a no-correlation between said transmitted and received signals and to a hybrid circuit for enabling said method.

Abstract: A wireless communication system (40). The system comprises transmitter circuitry (42) comprising encoder circuitry (44) for receiving a plurality of symbols (Si). The system further comprises a plurality of antennas (AT1-AT4) coupled to the transmitter circuitry and for transmitting signals from the transmitter circuitry to a receiver (UST), wherein the signals are responsive to the plurality of symbols. Further, the encoder circuitry is for applying open loop diversity and closed loop diversity to the plurality of symbols to form the signals.