A multi-line digital transceiver configured to use digital signal vectoring in a manner that causes effects of crosstalk between distinct groups of subscriber lines to be effectively mitigated, without directly attempting to mitigate effects of crosstalk within any one of those distinct groups. In an example embodiment, effects of crosstalk within each of the distinct groups can be mitigated indirectly using an appropriate T/FDMA schedule, according to which, during a given symbol period, a given resource block of any of the distinct groups can carry data corresponding to a single respective subscriber. A precoder (postcoder) matrix for the digital signal vectoring can be generated using block-diagonalization techniques appropriately constrained, e.g., using the groups' definitions, aggregate-transmit-power restrictions, etc. In various embodiments, the disclosed digital signal vectoring can be used on the downlink or on the uplink, or both.

A residential gateway connecting an access network to an in-home network includes an access network transceiver configured for a first communication with an access network component via a wireline and an in-home network transceiver configured for a second communication with an in-home network component via the same wireline or at least one further wireline. The residential gateway further includes synchronization circuitry configured to synchronize a timing between the first and the second communication and interference mitigation circuitry configured to mitigate interference between the first and the second communication based on the synchronized timing.

A residential gateway connecting an access network to an in-home network includes an access network transceiver configured for a first communication with an access network component via a wireline and an in-home network transceiver configured for a second communication with an in-home network component via the same wireline or at least one further wireline. The residential gateway further includes synchronization circuitry configured to synchronize a timing between the first and the second communication and interference mitigation circuitry configured to mitigate interference between the first and the second communication based on the synchronized timing.

In some aspects, the disclosure is directed to methods and systems for improving signal to noise ratios of signals from multiple communication links. In some embodiments, a system includes a first frequency transformation circuit configured to transform a first signal in a time domain received from a first device into a corresponding second signal in a frequency domain. The system further includes a second frequency transformation circuit configured to transform a third signal in the time domain received from a second device into a corresponding fourth signal in the frequency domain. The system further includes a leg combining circuit configured to select, for a group of subcarriers, one of the first frequency transformation circuit and the second frequency transformation circuit, and cause, for the group of subcarriers, the selected frequency transformation circuit to output one of the second signal and the fourth signal, according to the selection.

In some aspects, the disclosure is directed to methods and systems for improving signal to noise ratios of signals from multiple communication links. In some embodiments, a system includes a first frequency transformation circuit configured to transform a first signal in a time domain received from a first device into a corresponding second signal in a frequency domain. The system further includes a second frequency transformation circuit configured to transform a third signal in the time domain received from a second device into a corresponding fourth signal in the frequency domain. The system further includes a leg combining circuit configured to select, for a group of subcarriers, one of the first frequency transformation circuit and the second frequency transformation circuit, and cause, for the group of subcarriers, the selected frequency transformation circuit to output one of the second signal and the fourth signal, according to the selection.

The technologies described herein are generally directed toward facilitating indicating frequency and time domain resources in communication systems with multiple transmission points. According to an embodiment, a system can comprise a processor, a base transceiver station, and a memory that can store executable instructions that, when executed by the processor, can facilitate performance of operations. The operations can include receiving a first signal. The operations can further include combining the first signal with a second signal resulting in a combined signal, wherein the first signal can be combined using a different weight than is applied to the second signal. The operations can further include broadcasting by an antenna of the base transceiver station, the combined signal.

The technologies described herein are generally directed toward facilitating indicating frequency and time domain resources in communication systems with multiple transmission points. According to an embodiment, a system can comprise a processor, a base transceiver station, and a memory that can store executable instructions that, when executed by the processor, can facilitate performance of operations. The operations can include receiving a first signal. The operations can further include combining the first signal with a second signal resulting in a combined signal, wherein the first signal can be combined using a different weight than is applied to the second signal. The operations can further include broadcasting by an antenna of the base transceiver station, the combined signal.

A multi-line digital transceiver configured to use digital signal vectoring in a manner that causes effects of crosstalk between distinct groups of subscriber lines to be effectively mitigated, without directly attempting to mitigate effects of crosstalk within any one of those distinct groups. In an example embodiment, effects of crosstalk within each of the distinct groups can be mitigated indirectly using an appropriate T/FDMA schedule, according to which, during a given symbol period, a given resource block of any of the distinct groups can carry data corresponding to a single respective subscriber. A precoder (postcoder) matrix for the digital signal vectoring can be generated using block-diagonalization techniques appropriately constrained, e.g., using the groups' definitions, aggregate-transmit-power restrictions, etc. In various embodiments, the disclosed digital signal vectoring can be used on the downlink or on the uplink, or both.

An apparatus of a wireless device can include baseband processing circuitry configured to generate a digitized downconverted signal based on a received radio frequency (RF) signal. The apparatus can also include estimation circuitry configured to detect a blocker signal in the downconverted signal, the blocker signal having power that exceeds a pre-determined threshold, and map the detected blocker signal to a plurality of harmonic frequencies associated with two or more carrier frequencies. The apparatus can include reference signal generation circuitry configured to generate a reference signal based on the plurality of harmonic frequencies and the received RF signal. The apparatus can include cancellation circuitry configured to apply a pre-processed reference signal (based on the reference signal) to the digitized downconverted signal to remove distortion associated with the detected blocker signal. The digitized downconverted signal is a baseband signal or an intermediate frequency (IF) signal.

An apparatus of a wireless device can include baseband processing circuitry configured to generate a digitized downconverted signal based on a received radio frequency (RF) signal. The apparatus can also include estimation circuitry configured to detect a blocker signal in the downconverted signal, the blocker signal having power that exceeds a pre-determined threshold, and map the detected blocker signal to a plurality of harmonic frequencies associated with two or more carrier frequencies. The apparatus can include reference signal generation circuitry configured to generate a reference signal based on the plurality of harmonic frequencies and the received RF signal. The apparatus can include cancellation circuitry configured to apply a pre-processed reference signal (based on the reference signal) to the digitized downconverted signal to remove distortion associated with the detected blocker signal. The digitized downconverted signal is a baseband signal or an intermediate frequency (IF) signal.