WO2010132475A8 - Suppression des erreurs multiplicatives dans l'estimation du canal du domaine fréquentiel pour des répéteurs sans fil - Google Patents

Suppression des erreurs multiplicatives dans l'estimation du canal du domaine fréquentiel pour des répéteurs sans fil Download PDF

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Publication number
WO2010132475A8
WO2010132475A8 PCT/US2010/034416 US2010034416W WO2010132475A8 WO 2010132475 A8 WO2010132475 A8 WO 2010132475A8 US 2010034416 W US2010034416 W US 2010034416W WO 2010132475 A8 WO2010132475 A8 WO 2010132475A8
Authority
WO
WIPO (PCT)
Prior art keywords
channel estimation
frequency domain
domain channel
wireless repeaters
scaling factors
Prior art date
Application number
PCT/US2010/034416
Other languages
English (en)
Other versions
WO2010132475A2 (fr
WO2010132475A3 (fr
Inventor
Dhananjay Ashok Gore
Gwendolyn Denise Barriac
Steven J. Howard
Original Assignee
Qualcomm Incorporated
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 Qualcomm Incorporated filed Critical Qualcomm Incorporated
Publication of WO2010132475A2 publication Critical patent/WO2010132475A2/fr
Publication of WO2010132475A3 publication Critical patent/WO2010132475A3/fr
Publication of WO2010132475A8 publication Critical patent/WO2010132475A8/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/022—Channel estimation of frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15564—Relay station antennae loop interference reduction
    • H04B7/15585—Relay station antennae loop interference reduction by interference cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Radio Relay Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

La présente invention concerne un procédé d'estimation d'un canal de retour pour un répéteur sans fil qui repose sur l'estimation du canal du domaine fréquentiel et sur un signal indiquant le signal amplifié en tant que signal pilote. Le procédé d'estimation du canal génère une estimation du canal de retour du domaine temporel à partir de l'estimation du canal du domaine fréquentiel et met à l'échelle l'estimation du canal de retour du domaine temporel au moyen de facteurs d'échelle. Dans un mode de réalisation, les facteurs d'échelle sont fonction d'un index de branchement et de la taille de bloc de l'estimation du canal du domaine fréquentiel.
PCT/US2010/034416 2009-05-11 2010-05-11 Suppression des erreurs multiplicatives dans l'estimation du canal du domaine fréquentiel pour des répéteurs sans fil WO2010132475A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US17719809P 2009-05-11 2009-05-11
US61/177,198 2009-05-11
US12/776,786 2010-05-10
US12/776,786 US20110116531A1 (en) 2009-05-11 2010-05-10 Removal of multiplicative errors in frequency domain channel estimation for wireless repeaters

Publications (3)

Publication Number Publication Date
WO2010132475A2 WO2010132475A2 (fr) 2010-11-18
WO2010132475A3 WO2010132475A3 (fr) 2011-03-24
WO2010132475A8 true WO2010132475A8 (fr) 2011-06-16

Family

ID=43085542

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/034416 WO2010132475A2 (fr) 2009-05-11 2010-05-11 Suppression des erreurs multiplicatives dans l'estimation du canal du domaine fréquentiel pour des répéteurs sans fil

Country Status (3)

Country Link
US (1) US20110116531A1 (fr)
TW (1) TW201126973A (fr)
WO (1) WO2010132475A2 (fr)

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Also Published As

Publication number Publication date
WO2010132475A2 (fr) 2010-11-18
TW201126973A (en) 2011-08-01
WO2010132475A3 (fr) 2011-03-24
US20110116531A1 (en) 2011-05-19

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