NO20052406L - Lavkompleksitetslagdelt modulasjonssignalprosessor - Google Patents

Lavkompleksitetslagdelt modulasjonssignalprosessor

Info

Publication number
NO20052406L
NO20052406L NO20052406A NO20052406A NO20052406L NO 20052406 L NO20052406 L NO 20052406L NO 20052406 A NO20052406 A NO 20052406A NO 20052406 A NO20052406 A NO 20052406A NO 20052406 L NO20052406 L NO 20052406L
Authority
NO
Norway
Prior art keywords
signal
upper layer
lower layer
layer
modulator
Prior art date
Application number
NO20052406A
Other languages
English (en)
Other versions
NO335093B1 (no
NO20052406D0 (no
Inventor
Ernest C Chen
Joseph Santoru
Weizheng Wang
Guangcai Zhou
Tung-Sheng Lin
Original Assignee
Directv Group 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 Directv Group Inc filed Critical Directv Group Inc
Publication of NO20052406D0 publication Critical patent/NO20052406D0/no
Publication of NO20052406L publication Critical patent/NO20052406L/no
Publication of NO335093B1 publication Critical patent/NO335093B1/no

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/32Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3488Multiresolution systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851Systems using a satellite or space-based relay
    • H04B7/18515Transmission equipment in satellites or space-based relays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/20Arrangements for detecting or preventing errors in the information received using signal quality detector
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/18Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/183Multiresolution systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/18Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22Demodulator circuits; Receiver circuits
    • H04L27/227Demodulator circuits; Receiver circuits using coherent demodulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/32Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36Modulator circuits; Transmitter circuits
    • H04L27/366Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • H04L2027/0044Control loops for carrier regulation
    • H04L2027/0053Closed loops
    • H04L2027/0061Closed loops remodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Electromagnetism (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Error Detection And Correction (AREA)
  • Dc Digital Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Fremgangsmåte og et apparat for å sende ut og å motta et kodesignal som har et signal i et øvre lag og et signal i et nedre lag er omtalt. Fremgangsmåten omfatter prosesstrinn som går ut på å kombinere signal i det øvre lag og signal i det nedre lag, koding av det kombinerte signal av signalet i det øvre lag og signalet i det nedre lag, forsinkelse av signalet i det øvre lag, modulering av det forsinkede signal i det øvre lag, modulering av signalet i det nedre lag, utsendelse av det forsinkede signal i det øvre lag samt utsendelse av signalet i det nedre lag. Apparatet omfatter en koder for å kode et kombinert signal fra henholdsvis signalet i det øvre lag og signalet i det nedre lag, en forsinkelse som er kommuniserende koblet til koderen for å forsinke signalet i det øvre lag, en første modulator for å modulere det forsinkede signal i det øvre lag, en andre modulator for å modulere signalet i det lavere lag, en sender som er kommuniserende koblet i den første modulator, nemlig for å sende ut det forsinkede signal i det øvre lag, samt en andre sender som er kommuniserende koblet til den andre modulator.
NO20052406A 2002-10-25 2005-05-13 Lagdelt modulasjonssignalprosessor med lavere kompleksitet NO335093B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42133102P 2002-10-25 2002-10-25
PCT/US2003/032264 WO2004040403A2 (en) 2001-04-27 2003-10-10 Lower complexity layered modulation signal processor

Publications (3)

Publication Number Publication Date
NO20052406D0 NO20052406D0 (no) 2005-05-13
NO20052406L true NO20052406L (no) 2005-06-30
NO335093B1 NO335093B1 (no) 2014-09-15

Family

ID=34312080

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20052406A NO335093B1 (no) 2002-10-25 2005-05-13 Lagdelt modulasjonssignalprosessor med lavere kompleksitet

Country Status (9)

Country Link
US (2) US7512189B2 (no)
EP (1) EP1563620B1 (no)
AR (2) AR045708A1 (no)
AU (1) AU2003301717A1 (no)
CA (1) CA2503530C (no)
ES (1) ES2398213T3 (no)
NO (1) NO335093B1 (no)
TW (1) TWI324467B (no)
WO (1) WO2004040403A2 (no)

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