METHOD AND APPARATUS FOR MANAGING LOW POWER MODE IN XDSL SYSTEMS

METHOD AND APPARATUS FOR MANAGING LOW POWER MODE IN XDSL SYSTEMS

According to certain aspects, the present invention provides methods and apparatuses for managing a low power mode in xDSL systems, and more particularly directed to a L2 mode exit procedure for VDSL systems that is robust and quick. In embodiments, parameters for exiting a low power mode are commun...

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Hauptverfasser: SHRIDHAR, Avadhani, SORBARA, Massimo
Format: Patent
Sprache:eng ; fre ; ger
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator SHRIDHAR, Avadhani
SORBARA, Massimo
description According to certain aspects, the present invention provides methods and apparatuses for managing a low power mode in xDSL systems, and more particularly directed to a L2 mode exit procedure for VDSL systems that is robust and quick. In embodiments, parameters for exiting a low power mode are communicated between upstream and downstream modems before the low power mode is entered. According to certain aspects, these parameters include configurations for incrementally exiting low power mode in a plurality of stages. Embodiments of the invention include quickly estimating SNR at one or more stages of this plurality of stages. Additional or alternative embodiments include reliably signaling the beginning of low power mode exit. According to certain aspects, such signaling can include a synchro sequence of inverted and normal sync symbols.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title METHOD AND APPARATUS FOR MANAGING LOW POWER MODE IN XDSL SYSTEMS
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