DE69826387T2 - Symboltaktsynchronisierung und Moduserfassung für Mehrträgersignale - Google Patents

Symboltaktsynchronisierung und Moduserfassung für Mehrträgersignale Download PDF

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Publication number
DE69826387T2
DE69826387T2 DE69826387T DE69826387T DE69826387T2 DE 69826387 T2 DE69826387 T2 DE 69826387T2 DE 69826387 T DE69826387 T DE 69826387T DE 69826387 T DE69826387 T DE 69826387T DE 69826387 T2 DE69826387 T2 DE 69826387T2
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DE
Germany
Prior art keywords
time
frequency
coarse
signal
correlation
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69826387T
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German (de)
English (en)
Other versions
DE69826387D1 (de
Inventor
Otto Klank
Jürgen LAABS
Wolfgang Klausberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Thomson Brandt GmbH
Original Assignee
Deutsche Thomson Brandt GmbH
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 Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Publication of DE69826387D1 publication Critical patent/DE69826387D1/de
Application granted granted Critical
Publication of DE69826387T2 publication Critical patent/DE69826387T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • 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
    • H04L27/2657—Carrier 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
    • 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
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/71—Wireless systems
    • H04H20/72—Wireless systems of terrestrial networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE69826387T 1997-07-28 1998-07-15 Symboltaktsynchronisierung und Moduserfassung für Mehrträgersignale Expired - Lifetime DE69826387T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97112929 1997-07-28
EP97112929A EP0895387A1 (de) 1997-07-28 1997-07-28 Erkennung des Übertragungsmodus eines DVB-Signales

Publications (2)

Publication Number Publication Date
DE69826387D1 DE69826387D1 (de) 2004-10-28
DE69826387T2 true DE69826387T2 (de) 2005-03-24

Family

ID=8227127

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69826387T Expired - Lifetime DE69826387T2 (de) 1997-07-28 1998-07-15 Symboltaktsynchronisierung und Moduserfassung für Mehrträgersignale

Country Status (5)

Country Link
US (1) US6330293B1 (enExample)
EP (1) EP0895387A1 (enExample)
JP (1) JP4143174B2 (enExample)
CN (1) CN1133280C (enExample)
DE (1) DE69826387T2 (enExample)

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US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
DE602004029754D1 (de) * 2003-12-08 2010-12-09 Panasonic Corp Demodulator und Demodulationsmethode und integrierter Schaltkreis des Demodulators
US7336732B1 (en) * 2004-07-28 2008-02-26 L-3 Communications Titan Corporation Carrier frequency detection for signal acquisition
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Also Published As

Publication number Publication date
DE69826387D1 (de) 2004-10-28
CN1133280C (zh) 2003-12-31
JP4143174B2 (ja) 2008-09-03
EP0895387A1 (de) 1999-02-03
US6330293B1 (en) 2001-12-11
JPH1174863A (ja) 1999-03-16
CN1206966A (zh) 1999-02-03

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