System and method for performing ranging in a cable modem...

Details System and method for performing ranging in a cable modem... System and method for performing ranging in a cable modem...

2009-08-10

2011-12-27

Puente, Eva (Department: 2611)

Pulse or digital communications

Transceivers

Modems

C375S229000, C375S231000, C370S252000, C708S323000

Reexamination Certificate

active

08085835

ABSTRACT:
The present invention provides a system and method for performing ranging operations in a able modern system. In accordance with embodiments of the present invention, transmission times, transmission power levels, transmission carrier frequencies, and pre-equalization parameters are adjusted to provide for robust operation of the cable modem system. More particularly, iterative processing steps are used to provide coefficient ordering, scaling, and aligning between the multiple cable modems and the cable modem termination system present in a cable modern system.

REFERENCES:
patent: 4489416 (1984-12-01), Stuart
patent: 6137793 (2000-10-01), Gorman et al.
patent: 6230326 (2001-05-01), Unger et al.
patent: 6307868 (2001-10-01), Rakib et al.
patent: 7050419 (2006-05-01), Azenkot et al.
patent: 2002/0036985 (2002-03-01), Jonas et al.
patent: 2002/0073432 (2002-06-01), Kolze
patent: 2002/0154620 (2002-10-01), Azenkot et al.

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