ATE434893T1 - Symboltakt-korrekturen in einem mehrträgersystem durch verwendung einer kanalschätzung - Google Patents

Symboltakt-korrekturen in einem mehrträgersystem durch verwendung einer kanalschätzung

Info

Publication number
ATE434893T1
ATE434893T1 AT06737649T AT06737649T ATE434893T1 AT E434893 T1 ATE434893 T1 AT E434893T1 AT 06737649 T AT06737649 T AT 06737649T AT 06737649 T AT06737649 T AT 06737649T AT E434893 T1 ATE434893 T1 AT E434893T1
Authority
AT
Austria
Prior art keywords
timing
carrier system
symbols
channel estimation
symbol clock
Prior art date
Application number
AT06737649T
Other languages
English (en)
Inventor
Ashok Mantravadi
Bojan Vrcelj
Fuyun Ling
Kiran Mukkavilli
Original Assignee
Qualcomm Inc
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 Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ATE434893T1 publication Critical patent/ATE434893T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • 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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • 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
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H04L27/2665—Fine synchronisation, e.g. by positioning the FFT window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • 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
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/025—Channel estimation channel estimation algorithms using least-mean-square [LMS] method

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
AT06737649T 2005-03-10 2006-03-10 Symboltakt-korrekturen in einem mehrträgersystem durch verwendung einer kanalschätzung ATE434893T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66090505P 2005-03-10 2005-03-10
PCT/US2006/008490 WO2006099088A2 (en) 2005-03-10 2006-03-10 Symbol timing corrections in a multi carrier system by using the channel estimation

Publications (1)

Publication Number Publication Date
ATE434893T1 true ATE434893T1 (de) 2009-07-15

Family

ID=36601183

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06737649T ATE434893T1 (de) 2005-03-10 2006-03-10 Symboltakt-korrekturen in einem mehrträgersystem durch verwendung einer kanalschätzung

Country Status (12)

Country Link
US (1) US8428001B2 (de)
EP (1) EP1856868B1 (de)
JP (1) JP2008533846A (de)
KR (2) KR101119069B1 (de)
CN (2) CN102176707B (de)
AT (1) ATE434893T1 (de)
BR (1) BRPI0609270A2 (de)
CA (1) CA2600437A1 (de)
DE (1) DE602006007446D1 (de)
RU (1) RU2007137486A (de)
TW (1) TW200704046A (de)
WO (1) WO2006099088A2 (de)

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US9008198B2 (en) * 2007-01-05 2015-04-14 Qualcomm Incorporated Methods and apparatus for timing synchronization based on transitional pilot symbols
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US8098567B2 (en) * 2007-03-05 2012-01-17 Qualcomm Incorporated Timing adjustments for channel estimation in a multi carrier system
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Also Published As

Publication number Publication date
DE602006007446D1 (de) 2009-08-06
US8428001B2 (en) 2013-04-23
CN101164308B (zh) 2013-01-30
BRPI0609270A2 (pt) 2010-03-09
CN102176707B (zh) 2014-11-12
KR20070118250A (ko) 2007-12-14
US20060227812A1 (en) 2006-10-12
RU2007137486A (ru) 2009-04-20
KR20090019919A (ko) 2009-02-25
CN101164308A (zh) 2008-04-16
CN102176707A (zh) 2011-09-07
EP1856868B1 (de) 2009-06-24
KR101119069B1 (ko) 2012-03-20
WO2006099088A2 (en) 2006-09-21
JP2008533846A (ja) 2008-08-21
CA2600437A1 (en) 2006-09-21
KR100939941B1 (ko) 2010-02-04
TW200704046A (en) 2007-01-16
WO2006099088A3 (en) 2006-12-14
EP1856868A2 (de) 2007-11-21

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