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1. WO2007031690 - SIGNAL RECEIVING DEVICE WITH DETERMINATION OF AN MMSE EQUALISER OPTIMAL DEPTH

Publication Number WO/2007/031690
Publication Date 22.03.2007
International Application No. PCT/FR2006/050883
International Filing Date 13.09.2006
IPC
H04L 25/03 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
CPC
H04B 1/7115
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
69Spread spectrum techniques
707using direct sequence modulation
7097Interference-related aspects
711the interference being multi-path interference
7115Constructive combining of multi-path signals, i.e. RAKE receivers
H04L 2025/03585
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03006Arrangements for removing intersymbol interference
03433characterised by equaliser structure
03535Variable structures
03547Switching between time domain structures
03566between different tapped delay line structures
03585Modifying the length
H04L 25/03012
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03006Arrangements for removing intersymbol interference
03012operating in the time domain
Applicants
  • FRANCE TELECOM [FR]/[FR] (AllExceptUS)
  • FATHI, Lahouari [MA]/[FR] (UsOnly)
  • ARNDT, Marylin [FR]/[FR] (UsOnly)
Inventors
  • FATHI, Lahouari
  • ARNDT, Marylin
Agents
  • JOLY, Jean-Jacques
Priority Data
050931413.09.2005FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) SIGNAL RECEIVING DEVICE WITH DETERMINATION OF AN MMSE EQUALISER OPTIMAL DEPTH
(FR) DISPOSITIF DE RECEPTION D'UN SIGNAL AVEC DETERMINATION DE LA PROFONDEUR OPTIMALE D'UN EGALISEUR MMSE
Abstract
(EN)
A device for receiving a baseband analog spread spectrum signal (r(t)) transmitted from a multi-path communication channel comprises said signal linear equaliser (10) minimising the mean square error (MMSE) and means for automatically determining an optimal depth (Popt), which is used in the form of a depth in the linear equaliser (10), from the impulse response of said channel (h) and a thermal noise power (&sgr;2&eegr; ).
(FR)
Ce dispositif de réception d'un signal analogique (r(t)) à étalement de spectre en bande de base issu d'un canal de communication multi trajets, comporte un égaliseur (10) égaliseur linéaire dudit signal minimisant l'erreur quadratique moyenne (MMSE) et des moyens pour déterminer automatiquement une profondeur optimale (Popt) utilisée comme profondeur dans cet égaliseur linéaire (10), à partir de la réponse impulsionnelle dudit canal (h), et de la puissance (&sgr;2&eegr; ) du bruit thermique.
Also published as
EP6808321
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