Abstract: A method for operating a first access service depends on the presence of a second access service. The method includes conducting at least one measurement by the first access service and determining based on the at least one measurement whether or not a power spectral density used by the first access service is adjusted.

Abstract: A time-division duplexing (TDD) system reduces crosstalk associated with signals communicated by coordinated dynamic time assignment (cDTA) transceivers. In some embodiments, the TDD system has both cDTA transceivers and legacy transceivers. Based on the dynamic allocation of downstream and upstream timeslots for the cDTA transceivers, timeslots for the legacy transceivers are selectively muted in an effort to limit the amount of near-end crosstalk (NEXT) that occurs in the TDD system. Thus, subscriber lines coupled to both cDTA transceivers and legacy transceivers may be bound within the same binder without significantly increasing crosstalk to unacceptable levels.

Abstract: A centralized dynamic resource allocation is suggested to adjust a resource allocation for at least two DPUs. Also, a method for adjusting a resource allocation for the at least two DPUs by a centralized dynamic resource allocation entity is provided. Further, a system comprising at least one such device is proposed.

Abstract: It is suggested to detect a single wire interruption (SWI) of a line comprising two wires, wherein such line is part of a vectoring group, comprising (i) determining a capacitance between the single wires of the line; and (ii) determining whether a single wire interruption is present based on the determined capacitance.

Abstract: A method for operating a first access service depends on the presence of a second access service. The method includes conducting at least one measurement by the first access service and determining based on the at least one measurement whether or not a power spectral density used by the first access service is adjusted.

Abstract: Methods, devices, systems and computer readable medium for utilizing interfaces of a network access device are provided. A network access device includes a subscriber interface with at least one subscriber port and a network interface. Methods include (i) checking whether configuration data can be obtained via the network interface; (ii) if the configuration data cannot be obtained from the network interface, checking a predefined condition at the subscriber interface; and (iii) if the predefined condition is fulfilled, enabling the subscriber interface for configuration purposes. Furthermore, an according device and a system are suggested.

Abstract: A time-division duplexing (TDD) system reduces crosstalk associated with signals communicated by coordinated dynamic time assignment (cDTA) transceivers. In some embodiments, the TDD system has both cDTA transceivers and legacy transceivers. Based on the dynamic allocation of downstream and upstream timeslots for the cDTA transceivers, timeslots for the legacy transceivers are selectively muted in an effort to limit the amount of near-end crosstalk (NEXT) that occurs in the TDD system. Thus, subscriber lines coupled to both cDTA transceivers and legacy transceivers may be bound within the same binder without significantly increasing crosstalk to unacceptable levels.

Abstract: Methods, systems, and apparatus for determining a loop length of a link. In some implementations, a method includes obtaining timing information for bi-directional communications over a link that is being initialized or is in showtime and determining a loop length of the link using the timing information while the link is being initialized or is in showtime. The timing information used while the link is being initialized can include a time value used to align data transmissions over the link. The timing information used while the link is in showtime can include times at which time synchronization events occur on the link while the link is in showtime.

Abstract: An aggregation module receives a data packet. A bonding engine of the aggregation module breaks the data packet into fragments, and each fragment is part of a bonding group that is assigned a sequence identifier that allows the data packet to be reconstructed from the fragments. Each fragment is provided to one of a plurality of transmitters to be transmitted over a data link. When a noise event occurs on one of the data links, the fragments stored at the transmitter associated with that data link are transferred to another transmitter within the same bonding group for transmission over a different data link.

Abstract: A method is suggested for switching a subscriber line, the method comprising (i) conducting an evaluation of a signal provided by a terminal device, and (ii) controlling a switch that is arranged to connect one of at least two access services based on the evaluation of the signal with the subscriber line that is connected to the terminal device. Also, corresponding systems are provided.

Abstract: Methods, systems, devices, and computer readable medium for processing data in a digital subscriber line environment are disclosed. In one aspect methods include establishing a first data channel in a first system utilizing a first frequency band. Methods also include conveying, for a second system that establishes a second data channel over a second frequency band, handshake information using the first system.

Abstract: Methods, systems, and apparatus for crosstalk avoidance in a telecommunications network are disclosed. In one aspect a telecommunications device includes a transceiver and a vectoring engine coupled to the transceiver. The vectoring engine can include a vectoring processor and vectoring control entity (e.g., apparatus). The vectoring engine is configured to instruct the transceiver to transmit, over a given line pair of a given vectoring group, initialization symbols at one or more configurable locations of a Time-Division Duplex (TDD) frame. For example, the vectoring engine can instruct the transceiver to transmit the initialization symbols beginning at a first symbol time following transmission, over other line pairs of the given vectoring group, of a Robust Management Channel (RMC) symbol.

Abstract: Methods, devices, systems and computer readable medium for utilizing interfaces of a network access device are provided. A network access device includes a subscriber interface with at least one subscriber port and a network interface. Methods include (i) checking whether configuration data can be obtained via the network interface; (ii) if the configuration data cannot be obtained from the network interface, checking a predefined condition at the subscriber interface; and (iii) if the predefined condition is fulfilled, enabling the subscriber interface for configuration purposes. Furthermore, an according device and a system are suggested.

Abstract: Methods, systems, and apparatus for crosstalk avoidance in a telecommunications network are disclosed. In one aspect a method includes determining, by a network element and for each vectoring group from multiple vectoring groups, a transmission load of the vectoring group based on transmission loads of links within the vectoring group; allocating, by the network element, a different transmission interval to each vectoring group from the multiple vectoring groups based on the transmission load of the vectoring group and transmission loads of other vectoring groups in the multiple vectoring groups; and transmitting, during each different transmission interval, at least a portion of the transmission load of the vectoring group that was allocated the different transmission interval.

Abstract: Power dissipation within a network service unit, such as digital-subscriber-line access multiplexer (DSLAM), is treated as a resource that is to be shared among subscribers. In this regard, the total amount of available power dissipation is quantified, and the framing for the data streams communicated across the subscriber lines are controlled to ensure that specified power dissipation limits are not exceeded, accounting for one or more factors, such as traffic load, service level agreement (SLA) specifications, available power, and temperature.

Abstract: A device is suggested comprising a first DSL system operating in a first frequency band, a second DSL system operating in a second frequency band and a filter unit connected to a line and to each of the first DSL system and the second DSL system.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for data processing in a digital subscriber line environment are provided. In one aspect a method includes (i) determining a deterioration of a connection between a centralized unit and a decentralized unit during an initialization of the connection; and (ii) disabling the connection based on the deterioration.

Abstract: A controller at a distribution point (DP) of a communication system is coupled to a plurality of customer premises (CP) transceivers via drop connections. The controller is configured to schedule upstream and downstream data transmissions across the drop connections such that they do not overlap from one drop connection to another thereby avoiding the effects of crosstalk. A flexible frame structure is used to permit dynamic scheduling changes. Overhead for the flexible frame structure is permitted to overlap on the drop connections, and a reduced bit loading is used to communicate the overhead relative to the bit loading used for data transmissions.

Abstract: A method and a device are provided for processing first data, wherein said first data are distributed, in particular temporally spread over and/or on top of second data. In addition, a communication system comprising such device is suggested.

Abstract: Methods, systems, and apparatus for crosstalk avoidance in a telecommunications network are disclosed. In one aspect a telecommunications device includes a transceiver and a vectoring engine coupled to the transceiver. The vectoring engine can include a vectoring processor and vectoring control entity (e.g., apparatus). The vectoring engine is configured to instruct the transceiver to transmit, over a given line pair of a given vectoring group, initialization symbols at one or more configurable locations of a Time-Division Duplex (TDD) frame. For example, the vectoring engine can instruct the transceiver to transmit the initialization symbols beginning at a first symbol time following transmission, over other line pairs of the given vectoring group, of a Robust Management Channel (RMC) symbol.