Implementation of smart DSL for LDSL systems

Details Implementation of smart DSL for LDSL systems Implementation of smart DSL for LDSL systems

2008-07-29

2008-07-29

Payne, David C. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S222000

Reexamination Certificate

active

10714655

ABSTRACT:
Various embodiments for addressing the performance objectives of LDSL and examples of smart systems for LDSL are disclosed. An evaluation of the spectral compatibility of two LDSL modes based on two different downstream masks, identified herein as LDSL Wide and Narrow, is disclosed. Spectral compatibility is evaluated in accordance with existing rules. Other embodiments may further comprise determining features of upstream transmission.

REFERENCES:
patent: 6333920 (2001-12-01), Nguyen et al.
patent: 6760383 (2004-07-01), Darveau
patent: 2004/0218667 (2004-11-01), Duvaut et al.
patent: 2006/0163949 (2006-07-01), Barrass
International Search Report dated May 21, 2004 for Application No. PCT/US03/36843.
Kee Bong Song et al., Dynamic spectrum management for next-generation dsl systems, Topics in Broadband Access, IEEE Communications Magazine, Oct. 2002, pp. 101-109.
Feng Ouyang et al., The first step of long-reach adsl:smart dsl technology, readsl, Topics in Broadband Access, IEEE Communications Magazine, Sep. 2003, pp. 124-131.

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