Transmit power adjustment based on estimated electrical...

Details Transmit power adjustment based on estimated electrical... Transmit power adjustment based on estimated electrical...

2006-05-09

2009-11-03

Vo, Don N (Department: 2611)

Pulse or digital communications

Transceivers

Modems

Reexamination Certificate

active

07613236

ABSTRACT:
A method for estimating electrical length of a loop in a digital subscriber line (DSL) system begins by estimating an electrical length of a loop for each of a plurality signals based on a known power level of the plurality of signals, a known frequency for each of the plurality of signals, and a received power level for each of the plurality of signals. The method continues by processing the plurality of estimated electrical lengths in accordance with a function corresponding to characteristics of the loop to produce a determined electrical length.

REFERENCES:
patent: 6801601 (2004-10-01), Kamali et al.
patent: 7027405 (2006-04-01), Khadavi
patent: 2002/0172329 (2002-11-01), Rashid-Farrokhi
patent: 2003/0001586 (2003-01-01), Warke
patent: 2003/0016797 (2003-01-01), Zakrzewski et al.
patent: 2003/0156685 (2003-08-01), Erving et al.

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