Allocating data between tones in a VDSL system

Details Allocating data between tones in a VDSL system Allocating data between tones in a VDSL system

2005-03-04

2009-02-24

Torres, Juan A (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

07496144

ABSTRACT:
A new protocol is proposed for transmission of data through lines such as telephone lines. The tones of a signal are associated into groups10, 11,and tone ordering, gain selection, and/or bit swapping within the processing system are done within the members of a group10, 11.This idea is applicable both to tone ordering etc., following the training stage, and also to the dynamic configuration changes subsequently, for example, bit swapping. The computational cost of coding and decoding the data is reduced (compared to treating all the tones of a given direction equivalently), and the invention makes it possible to significantly reduce the memory requirements of the encoder and decoder.

REFERENCES:
patent: 6134273 (2000-10-01), Wu et al.
patent: 6151335 (2000-11-01), Ko et al.
patent: 6389062 (2002-05-01), Wu
patent: 6501791 (2002-12-01), Hwang
patent: 7010027 (2006-03-01), Mestdagh et al.
patent: 2005/0111535 (2005-05-01), Saey
VDSL1, ITU-T Standard VDSL1 “Very high speed digital subscriber line”, pp. 5-7, 26-30, 106-107, 176-180, Feb. 19, 2004.

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