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Method and dslam for mitigating disconnection events in vectorization based dsl systems

A vectorization and event technology, applied in transmission systems, cable transmission systems, line transmission components, etc., can solve problems such as damage to DSL system performance, and achieve the effect of avoiding recalibration

Active Publication Date: 2017-08-11
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can be a typical mistake made by careless maintainers, for example
Such disconnection events may thus impair the performance of the DSL system

Method used

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  • Method and dslam for mitigating disconnection events in vectorization based dsl systems
  • Method and dslam for mitigating disconnection events in vectorization based dsl systems
  • Method and dslam for mitigating disconnection events in vectorization based dsl systems

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Embodiment Construction

[0030] The inventive concept will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive concept to those skilled in the art. Throughout this description, like numerals refer to like elements. In the flowcharts, any step illustrated in a box with dashed lines should be considered optional.

[0031] figure 1 is a schematic diagram illustrating a communication network 1 in which the embodiments presented herein can be applied. The communication network 1 comprises a Digital Subscriber Line Access Multiplexer (DSLAM) 3 . Generally speaking, the DSLAM 3 is a network device that can be located in a telephone e...

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Abstract

Mitigation of disconnection events in vectoring based digital subscriber line DSL systems is provided. A method performed by a digital subscriber line access multiplexer, DSLAM, includes detecting a signal loss or disconnection event for a line in a set of vectored DSL lines, the signal loss or disconnection event causing a negative impact on a DSL system . The method further includes detecting a change in at least one downstream DS crosstalk coefficient of at least one line in the set of vectored DSL lines. The method further includes determining the magnitude of the change. The method further includes determining where the signal loss or disconnection event occurred by processing the precoding coefficients of the vectored set of DSL lines. The method further includes determining, based on the determined magnitude and where the signal loss or disconnection event occurred, an action to be performed by the DSLAM in order to mitigate the negative impact.

Description

technical field [0001] Embodiments presented herein relate to vectoring based Digital Subscriber Line DSL systems, and in particular to mitigation of disconnection events in such systems. Background technique [0002] In mobile communication networks, there is always the challenge of obtaining good performance and capacity for a given communication protocol, its parameters, and the physical environment in which the mobile communication network is deployed. [0003] Vectoring technology may be the core technology of the next generation of DSL (VDSL2; Very High Speed ​​Digital Subscriber Line 2). It eliminates FEXT (Far End Cross Talk) between DSL lines and thus maximizes DSL system performance. Vectoring technology will play a role in FTTX (Fibre to the Node / Cabinet Curb / Building / Residence / Premises, etc.) DSL lines between CPEs (Customer Premises Equipment) to supply 100Mbps per subscriber. [0004] ITU-T (the Telecommunication Standardization Sector of the International T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/32H04M3/18H04M11/06
CPCH04B3/32H04M3/18H04M11/062H04B3/487H04M3/2209H04M3/34
Inventor 吕晨光T·安德烈亚森M·伯格P-E·埃里克森E·特罗杰尔
Owner TELEFON AB LM ERICSSON (PUBL)