WO2007110858A3 - Adaptive receiver loops with weighted decision-directed error - Google Patents

Adaptive receiver loops with weighted decision-directed error Download PDF

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Publication number
WO2007110858A3
WO2007110858A3 PCT/IL2007/000326 IL2007000326W WO2007110858A3 WO 2007110858 A3 WO2007110858 A3 WO 2007110858A3 IL 2007000326 W IL2007000326 W IL 2007000326W WO 2007110858 A3 WO2007110858 A3 WO 2007110858A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
adaptive receiver
weighted decision
receiver loops
directed error
Prior art date
Application number
PCT/IL2007/000326
Other languages
French (fr)
Other versions
WO2007110858A2 (en
Inventor
Uri Yehudai
Original Assignee
Provigent Ltd
Uri Yehudai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Provigent Ltd, Uri Yehudai filed Critical Provigent Ltd
Publication of WO2007110858A2 publication Critical patent/WO2007110858A2/en
Publication of WO2007110858A3 publication Critical patent/WO2007110858A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0071—Control of loops
    • H04L2027/0075—Error weighting

Abstract

A method for communication using a modulation scheme defined in a signal space includes determining demodulation confidence levels at a plurality of points distributed over the signal space. Weights are assigned to the respective points responsively to the demodulation confidence levels. A signal is received and demodulated using an adaptive loop so as to derive a corresponding signal point in the signal space. The adaptive loop is adjusted responsively to a weight assigned to the derived signal point.
PCT/IL2007/000326 2006-03-29 2007-03-13 Adaptive receiver loops with weighted decision-directed error WO2007110858A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/394,172 US7796708B2 (en) 2006-03-29 2006-03-29 Adaptive receiver loops with weighted decision-directed error
US11/394,172 2006-03-29

Publications (2)

Publication Number Publication Date
WO2007110858A2 WO2007110858A2 (en) 2007-10-04
WO2007110858A3 true WO2007110858A3 (en) 2009-04-09

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PCT/IL2007/000326 WO2007110858A2 (en) 2006-03-29 2007-03-13 Adaptive receiver loops with weighted decision-directed error

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US (1) US7796708B2 (en)
WO (1) WO2007110858A2 (en)

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US20070230641A1 (en) 2007-10-04
US7796708B2 (en) 2010-09-14
WO2007110858A2 (en) 2007-10-04

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