Communication channel capacity estimation

Details Communication channel capacity estimation Communication channel capacity estimation

2005-02-11

2010-02-09

Jamal, Alexander (Department: 2614)

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Of data transmission

Reexamination Certificate

active

07660395

ABSTRACT:
Prediction of a channel capacity is accomplished based on a TDR echo without explicitly estimating the topology of the line. The prediction is based on obtaining a measured TDR echo, determining a theoretical TDR echo for a plurality of loop lengths, estimating the equivalent TDR length based on an optimization, updating the equivalent TDR length and utilizing the updated TDR length to predict one or more of the upstream and downstream data rates.

REFERENCES:
patent: 2004/0101130 (2004-05-01), Shi et al.
patent: 2008/0071516 (2008-03-01), Cioffi et al.
patent: 1 248 383 (2002-10-01), None
patent: WO 01/24482 (2001-04-01), None
patent: WO 02/87103 (2002-01-01), None
PCT International Search Report dated Feb. 11, 2004 (PCT/US2005/004015).

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