Abstract: Techniques for implementing timesharing in discontinuous systems, for example to implement low power modes, are discussed. In some embodiments, a set of bit loading tables is determined in advance, and bit loading tables are then selected based on which lines are transmitting and which are quiet.

Abstract: A device for transmitting and receiving on a coaxial cable or twisted pair cable is disclosed. The device includes a plurality of transceivers for transmitting signals to, and receiving signals from, at least one customer premise equipment (CPE) via a plurality of channels The plurality of channels may be formed by using a plurality of twisted pairs cable or by using a plurality of frequency bands on a coaxial cable or a twisted pair. The device may also include at least one canceller for cancelling echo and/or crosstalk on at least one channel, and a processor configured to allocate to a single CPE multiple frequency bands on a single cable or multiple lines among a bundle of twisted pairs. The device may work for both coaxial cables and twisted pair cables and support for unified use of channel bonding in a frequency domain and a spacial domain.

Abstract: Communication devices and methods are provided which enable communication both with modulo receivers and legacy receivers. Different types of precodings are used in a joint precoding to reduce crosstalk between communication connections to all receivers.

Abstract: A system for redistributing bandwidth among a plurality of customer premises equipments (CPEs), wherein each of the plurality of CPEs have an initial bandwidth allocation, comprises a distribution point unit (DPU). The DPU is configured to detect an excess available bandwidth condition of one of the plurality of CPEs, detect a need for additional bandwidth condition of another one of the plurality of CPEs, communicate a bandwidth re-allocation request and a set of granted tones to the CPE having the detected excess available bandwidth condition and to the CPE having the detected additional bandwidth condition, and communicate a time instant at which the set of granted tones should be switched from the CPE having the detected excess available bandwidth condition to the CPE having the detected additional bandwidth condition.

Abstract: Methods and devices are discussed where a common bit loading table is constructed from minimum gain from a plurality of bit loading tables for different combinations of lines being in a transmit or quiet mode.

Abstract: In a communication device, a multi-carrier signal with at least one group of signal carriers is received from a communication connection. For each of the signal carriers, at least one individual error value is evaluated or generated. From the individual error values, a combined error value is evaluated or generated. The combined error value is transmitted on a backchannel of the communication connection.

Abstract: Methods and devices are provided to recover a robust management channel (RMC) in a first communication direction using a robust management channel recovery message (RMCR) sent via the RMC in a second communication direction.

Abstract: A system for a digital subscriber line (DSL) network with a DSL interface can operate with processing circuitry that can generate symbols in multicarrier communications with codewords for modulation of a parity check. The codewords can be aligned with symbol boundaries of the symbols in a continuous transmission of the multi-carrier communications. The processing circuitry reduces a number of parity bits by puncturing and a number of data bits for shortening of the codewords so that a codeword boundary is aligned with a symbol boundary for one or more symbols, or a transmission frame of symbols.

Abstract: Techniques for implementing timesharing in discontinuous systems, for example to implement low power modes, are discussed. In some embodiments, a set of bit loading tables is determined in advance, and bit loading tables are then selected based on which lines are transmitting and which are quiet.

Abstract: A modem includes a controller configured to generate at least one communication for a communication medium. The at least one communication includes first portion comprising auxiliary information, the auxiliary information comprising at least power boost information and at least one parameter defining use of the power boost information and a second portion comprising payload data.

Abstract: Methods, circuitries, and systems for transmitting data upstream between a first device and a second device and downstream between the second device and the first device are disclosed. A method includes determining an upstream crosstalk effect for an upstream channel and determining a downstream crosstalk effect for a downstream channel. The crosstalk effect includes near end crosstalk from a third device that is non-co-located with respect to the first device and the second device. A data rate of an upstream transmission or downstream transmission is adjusted based on the upstream crosstalk effect and the downstream crosstalk effect.

Abstract: Techniques discussed herein can facilitate handshake procedures for Point-to-Multipoint (P2MP) communication in connection with various DSL (Direct Subscriber Line) technologies. Various embodiments can employ different methods of separation of signaling to arrange P2MP handshake procedures based on existing Point-to-Point (P2P) handshake procedures. Example embodiments can employ one of separation in frequency, separation in time, or separation in transmission power level.

Abstract: A multi-carrier transmitter apparatus is disclosed. The apparatus includes an outer encoder, a shell mapper and an inner encoder. The outer encoder is configured to receive a signal, perform error correction using an outer code on the received signal and generate an outer encoder signal. The shell mapper is configured to perform constellation shaping on a subset of bits from the outer encoder signal and generate one or more constellation shaping bits. The inner encoder is configured to perform inner error correction/encoding using an inner code on a second subset of bits from the outer encoder signal and generate an inner correction signal.

Abstract: A first protocol stack for communication on a first physical line is implemented. At least parts of a second protocol stack for communication on a second physical line are implemented. The first protocol stack and the second protocol stack are bonded at the Physical Medium Dependent layer of the first protocol stack and the Physical Medium Dependent layer of the second protocol stack (172). In some scenarios, the bonding may be at an upper edge of the Physical Medium Dependent layer, i.e., at the ? interface.

Abstract: A distribution point unit (DPU) circuit associated with a communication system configured to be coupled to a central office management (COM) circuit over fiber, is disclosed. The DPU circuit comprises one or more processors configured to provide one or more upstream data signals in digital domain or analog domain, to the COM circuit over fiber. In some embodiments, the one or more upstream data signals are associated with one or more modem circuits respectively coupled to one or more lines associated with the DPU circuit. In some embodiments, the one or more processors is further configured to receive one or more downstream data signals from the COM circuit over fiber, in digital domain or analog domain. In some embodiments, the one or more downstream data signals are to be provided to the one or more modem circuits respectively coupled to the one or more lines associated with the DPU circuit.

Abstract: A system for canceling crosstalk between one or more local distribution point units (DPUs)/fiber extender (FE) and a central distribution point (CDP) in a central office (CO)/cloud. The system can include a processor with memory configured to virtualize signal processing tasks from the DPU/FE, and to the CDP. The virtualization can include moving or splitting signal processing tasks such as a cross talk cancellation operation, from the DPUs/FEs and to the CDP, as virtualization of the tasks, and performing crosstalk cancelation for lines therebetween or with CPEs of a same vectored group.

Abstract: A transceiver and associated method an impulse noise monitoring (INM) tool configured to identify a data stream that includes i) data transmission units (DTUs) communicating data symbols, ii) non-data symbols, and iii) non-transmission time. The INM tool is configured to ascertain an impulse noise (IN) event of the incoming data stream by evaluating a count, a frequency, a pattern, a group, or a sequence of corrupted DTUs and selected non-data symbols or non-transmission time that are proximate in time to the corrupted DTUs.

Abstract: Methods and devices are provided to recover a robust management channel (RMC) in a first communication direction using a robust management channel recovery message (RMCR) sent via the RMC in a second communication direction.

Abstract: Communication in a first spectrum and via a first transmission line of first data is according to a time-division duplexing scheme such as G.fast. Communication in a second spectrum and via a second transmission line of second data is according to a frequency-division duplexing scheme such as VDSL2. The first and second spectra both comprise an overlap spectrum. The first transmission line experiences first crosstalk from the second transmission line and the second transmission line experiences second crosstalk from the first transmission line.

Abstract: Communication in a first spectrum and via a first transmission line of first data is according to a time-division duplexing scheme such as G.fast. Communication in a second spectrum and via a second transmission line of second data is according to a frequency-division duplexing scheme such as VDSL2. The first and second spectra both comprise an overlap spectrum. The first transmission line experiences first crosstalk from the second transmission line and the second transmission line experiences second crosstalk from the first transmission line.