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.

Data processing in a digital subscriber line environment

A data processing method and a device are provided. The method includes: sending, by a first communication device, a video communication request to a second communication device; receiving a first response identifier corresponding to the video communication request, where the first response identifier is adapted to identify that the first communication device fails to communicate with the second communication device in response to the video communication request; and collecting message information according to the first response identifier and transmitting the message information to the second communication device. The type of the message information is one of video message information, audio message information, text message information and picture message information.

Data processing method and device

A novel procedure is described which provides a method for initialization of a group of CPE devices (short: CPEs) during a training that in part registers capabilities of the CPEs, wherein at least one CPE registers late to the training and thus cannot be registered. In accordance with the example described herein, the method comprises: determining capabilities of the CPEs during a Joining Phase of the training, wherein it is determined whether a CPE device is capable of employing vectoring. The method further comprises placing in a hold status the at least one CPE that registers late by keeping a line active that is coupled to the at least one CPE. Another Joining Phase is provided after the Joining Phase in order to register the at least one CPE which has registered late.

Training optimization of multiple lines in a vectored system using a prepared-to-join group

A deactivation method and system in a crosstalk scenario which relates to the field of mobile communications technologies. The method includes M transceivers of a central office end sending data using M lines, and when the M transceivers are in a data transmission showtime state, and when a trigger state change event is detected, switching, by N transceivers, to a deactivation execution state, to deactivate N lines among the M lines, acquiring an update coefficient used to update a crosstalk cancellation coefficient between active lines, updating the crosstalk cancellation coefficient between the active lines using the update coefficient, and controlling the transceivers in the deactivation execution state to enter a silent or an idle state.

Deactivation Method and System in Crosstalk Scenario

In accordance with embodiments disclosed herein, there are provided apparatuses, systems and methods for implementing upstream power control for DSL communications. For example, such a system may include means for: dividing a plurality of DSL lines into a first group of DSL lines and a second group of DSL lines based on characteristics common to each of the DSL lines within the respective first and second groups; determining attainable upstream data rates for the first and second groups of DSL lines according to the characteristics of each group; selecting upstream power control parameters to apply to each of the first and second groups of DSL lines based on the attainable upstream data rates determined; and instructing the DSL lines of the first and second groups to adopt the selected upstream power control parameters. Other related embodiments are disclosed.

Methods, systems, and apparatuses for implementing upstream power control for dsl

The present invention provides a method, an apparatus, and a system for reducing digital subscriber line interference. The method includes identifying at least one legacy digital subscriber line in a digital subscriber line DSL legacy line set, obtaining a target power spectral density mask value of the legacy digital subscriber line, and reducing power spectral density of a transmit signal on the legacy digital subscriber line according to the target power spectral density mask value.

Method, Apparatus, and System for Reducing Digital Subscriber Line Interference

The present invention provides a method, an apparatus, and a system for reducing digital subscriber line interference, so as to reduce, as much as possible, or eliminate an influence of a legacy line on a vectored line in a digital subscriber line system. The method includes: identifying at least one legacy digital subscriber line in a digital subscriber line DSL legacy line set; obtaining a target power spectral density mask value of the legacy digital subscriber line; and reducing power spectral density of a transmit signal on the legacy digital subscriber line according to the target power spectral density mask value. The method according to embodiments of the present invention can achieve an effect of eliminating far end crosstalk caused on a Vectored DSL line without upgrading or replacing a VDSL2 Legacy CPE, thereby reducing time consumed by the upgrade, and eliminating human and material (such as device) costs caused by the upgrade.

Method, apparatus and system for reducing interference in digital subscriber line

The invention discloses a vector DSL (Digital Subscriber Line) method, a system and single boards, which relate to the DSL data processing field and used to enlarge the user capacity of the vector DSL system. The vector DSL method includes the steps that at least one single board receives and processes own user data in advance; the single board transmits the own user data to an auxiliary processor on the single board for inner vector processing to obtain inner processing data; the single board transmits the user data to a centralized vector processor for external vector processing to obtain external processing data; and the single board receives the external processing data of the single board and combines the inner processing data for a later stage processing.

Vector DSL method, system, single board and a dslam device

A vectored-DSL method and system and a board relate to the field of digital subscriber line DSL data processing, so as to increase user capacity of a vectored-DSL system. The vectored-DSL method includes: receiving, by at least one board, and pre-processing user data of the board; transmitting, by the board, the user data of the board to an auxiliary vector processor on the board to perform internal vectorization processing, so as to obtain internally processed data; transmitting, by the board, the user data thereof to a centralized vector processor to perform external vectorization processing, so as to obtain externally processed data; and receiving, by the board, the externally processed data of the board, and post-processing the externally processed data and the internally processed data.

Vectored-DSL method and system, board, and DSLAM device

The present invention discloses a Vectored-Digital Subscriber Line (DSL) method, system and a single board, which relate to the field of digital subscribe line data processing and are used to increase the user capacity of the Vectored-DSL system. The Vectored-DSL method includes the following steps: at least one single board receives and performs pretreatment on the user data of the single board separately; the single board transmits the user data of the single board to an assisting vector processor of the single board for performing internal vectored processing and obtains internal processed data; the single board transmits the user data to a central vector processor for performing external vectored processing and obtains external processed data; the single board receives the external processed data of the single board and performs after-treatment in combination with the internal processed data.

Jinxiong Lv

Papers

Method, Apparatus, and System for Reducing Digital Subscriber Line Interference

Method, apparatus and system for reducing interference in digital subscriber line

Vector DSL method, system, single board and a dslam device

Vectored-DSL method and system, board, and DSLAM device

Vectored-digital subscriber line method, system, single board and digital subscriber line access multiplexer device