The method includes inputting first groups of frequency samples to be transmitted over, respectively received from, first and second subsets of subscriber lines at respective first tones and following a first group selection order, alternated with mirrored second groups of frequency samples to be transmitted over, respectively received from, the second subset of subscriber lines at respective mirrored second tones of the first tones, and following a mirrored second group selection order of the first group selection order, to a vectoring processor for joint mitigation of first crosstalk present over the first and second subsets of subscriber lines at the respective first tones and second crosstalk present over the second subset of subscriber lines at the respective second tones. The first tones are common to the first and second transmit spectra. Mirroring is with respect to a folding frequency derived from a reference sampling frequency applicable to the first subset of subscriber lines.

The method includes inputting first groups of frequency samples to be transmitted over, respectively received from, first and second subsets of subscriber lines at respective first tones and following a first group selection order, alternated with mirrored second groups of frequency samples to be transmitted over, respectively received from, the second subset of subscriber lines at respective mirrored second tones of the first tones, and following a mirrored second group selection order of the first group selection order, to a vectoring processor for joint mitigation of first crosstalk present over the first and second subsets of subscriber lines at the respective first tones and second crosstalk present over the second subset of subscriber lines at the respective second tones. The first tones are common to the first and second transmit spectra. Mirroring is with respect to a folding frequency derived from a reference sampling frequency applicable to the first subset of subscriber lines.

Methods and devices are provided for estimating crosstalk from a legacy line to a vectored line.

Methods and devices are provided for estimating crosstalk from a legacy line to a vectored line.

Methods and systems are provided for telephone line access with crosstalk stability. A transceiver device coupled to a telephone line, bundled with other telephone lines in a telephone cable, may determine when another transceiver device connected to the telephone cable is estimating signal to noise ratio on another telephone line in the telephone cable, and may control communications over on the telephone line, the controlling including forcing a transmission on the telephone line based on the estimation of signal to noise ratio by the other transceiver device. The transmission may be forced on the telephone line when there is no data to send on the telephone line at a time when the other transceiver device estimates the signal to noise ratio. The forced transmission may be generated by modulating sub-carriers using a pseudo-random sequence generated with an initial seed different from initial seeds used by other transceiver devices.

In one example, the present disclosure describes a device, computer-readable medium, and method for reducing interference on the frequency modulation (FM) radio broadcast band from the G.fast protocol standard spectrum. For instance, in one example, a method includes delivering broadband service to a customer over a spectrum that overlaps with a frequency modulation radio broadcast band, and applying a notch filter to a target frequency of the frequency modulation radio broadcast band based on a profile that is customized for the customer, wherein the notch filter prevents the broadband service from using the target frequency during the delivering.

In one example, the present disclosure describes a device, computer-readable medium, and method for reducing interference on the frequency modulation (FM) radio broadcast band from the G.fast protocol standard spectrum. For instance, in one example, a method includes delivering broadband service to a customer over a spectrum that overlaps with a frequency modulation radio broadcast band, and applying a notch filter to a target frequency of the frequency modulation radio broadcast band based on a profile that is customized for the customer, wherein the notch filter prevents the broadband service from using the target frequency during the delivering.

A method and a transmitter arrangement for cancelling cross talk and correcting power amplifier (PA) distortion for a transmitter branch of a multiple-input multiple-output (MIMO) configuration having multiple branches. The method comprises combining an original baseband input signal of a first MIMO transmitter branch with a crosstalk output signal generated from two or more signals associated with two or more respective MIMO branches, the two or more signals used as input to, and processed by, a crosstalk model. The method further comprises processing the combined signal to generate an output signal in order to minimize the error of the original baseband input signal caused by the crosstalk and/or PA distortion.

A method and a transmitter arrangement for cancelling cross talk and correcting power amplifier (PA) distortion for a transmitter branch of a multiple-input multiple-output (MIMO) configuration having multiple branches. The method comprises combining an original baseband input signal of a first MIMO transmitter branch with a crosstalk output signal generated from two or more signals associated with two or more respective MIMO branches, the two or more signals used as input to, and processed by, a crosstalk model. The method further comprises processing the combined signal to generate an output signal in order to minimize the error of the original baseband input signal caused by the crosstalk and/or PA distortion.

In accordance with embodiments disclosed herein, there are provided apparatus, systems and methods for implementing DSL line fault determination and localization via SELT, DELT, and MELT diagnostics. For example, such a system or computer implemented method may include means for: receiving Metallic Loop/Line Testing (MELT) test output from applying a MELT test to a DSL line; receiving Dual-End Line Testing (DELT) test output from applying a DELT test to the DSL line; receiving Single-Ended Loop Testing (SELT) test output from applying a SELT test to the DSL line; determining one or more faults are present on the DSL line by comparing the MELT test output, the DELT test output, and the SELT test output; and localizing the one or more determined faults by comparing the MELT test output, the DELT test output, and the SELT test output. Other related embodiments are disclosed.