Patent · US Active

Soft-output Viterbi equalizer for non-binary modulation

US11533126B1 · kind B1 · utility

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20Claims

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Assignee

Cisco Technology, Inc. · US

Inventors

Stefan Helmut Müller-Weinfurtner · Wendelstein, DE
Andreas Bisplinghoff · Forchheim, DE

Key dates

Filing date	Aug 20, 2021
Grant date	Dec 20, 2022
Priority date	—
Expiry date	Aug 20, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH03M13/4138
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method comprises: receiving, from a communication channel, non-binary multilevel symbols that represent corresponding multibit labels each including at least a least-significant bit (LSB) and a most-significant bit (MSB), the non-binary multilevel symbols mapped to the multibit labels according to set-partition labeling, which partitions the non-binary multilevel symbols between a first set and a second set according to a first value and a second value of the LSB, respectively; digitizing the non-binary multilevel symbols to produce symbol samples; and performing Soft-Output-Viterbi (SOV) equalization of the non-binary multilevel symbols based on the symbol samples, to produce decoded symbol information corresponding to the non-binary multilevel symbols.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.