WO2004040897A3 - Maximizing power and spectral efficiencies for layered and conventional modulations - Google Patents

Maximizing power and spectral efficiencies for layered and conventional modulations Download PDF

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Publication number
WO2004040897A3
WO2004040897A3 PCT/US2003/032800 US0332800W WO2004040897A3 WO 2004040897 A3 WO2004040897 A3 WO 2004040897A3 US 0332800 W US0332800 W US 0332800W WO 2004040897 A3 WO2004040897 A3 WO 2004040897A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
layered modulation
layered
spectral efficiencies
layer signal
Prior art date
Application number
PCT/US2003/032800
Other languages
French (fr)
Other versions
WO2004040897A2 (en
Inventor
Ernest C Chen
Original Assignee
Directv Group Inc
Ernest C Chen
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
Priority claimed from US09/844,401 external-priority patent/US7209524B2/en
Priority to US10/532,619 priority Critical patent/US7471735B2/en
Priority to ES03777627T priority patent/ES2377319T3/en
Priority to AT03777627T priority patent/ATE540511T1/en
Priority to EP03777627A priority patent/EP1559253B1/en
Priority to CA002502924A priority patent/CA2502924C/en
Application filed by Directv Group Inc, Ernest C Chen filed Critical Directv Group Inc
Priority to AU2003287103A priority patent/AU2003287103A1/en
Publication of WO2004040897A2 publication Critical patent/WO2004040897A2/en
Publication of WO2004040897A3 publication Critical patent/WO2004040897A3/en
Priority to IL168227A priority patent/IL168227A/en
Priority to NO20052423A priority patent/NO333917B1/en
Priority to US12/207,462 priority patent/US7920643B2/en
Priority to US12/973,710 priority patent/US8130818B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3488—Multiresolution systems
    • 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
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18515—Transmission equipment in satellites or space-based relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/42—Arrangements for resource management
    • 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
    • H04H20/74—Wireless systems of satellite networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Methods (1300) and apparatuses for maximizing power and spectral efficiencies in a wireless communication system are disclosed. The invention is particularly useful for layered modulation applications because power levels for such applications are relatively high. A layered modulation signal comprises an upper and a lower layer signal that interference with each other within the same frequency band such that the upper layer signal can be demodulated directly from the layered modulation signal, and the lower layer signal can be demodulated after subtracting the first layer signal from the layered modulation signal (1306). The invention applies one or more of the following four signal schemes in a communication signal including varying the symbol rate (rather than the code rate), reducing or eliminating the guard band, reducing excess signal bandwidth and employing layered modulation within the guard band of the legacy signal.
PCT/US2003/032800 2001-04-27 2003-10-16 Maximizing power and spectral efficiencies for layered and conventional modulations WO2004040897A2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
AU2003287103A AU2003287103A1 (en) 2002-10-25 2003-10-16 Maximizing power and spectral efficiencies for layered and conventional modulations
ES03777627T ES2377319T3 (en) 2002-10-25 2003-10-16 Maximization of energy and spectral efficiencies for layer and conventional modulations
AT03777627T ATE540511T1 (en) 2002-10-25 2003-10-16 MAXIMIZING POWER AND SPECTRAL EFFICIENCY FOR STRADIFIED AND TRADITIONAL MODULATIONS
EP03777627A EP1559253B1 (en) 2002-10-25 2003-10-16 Maximizing power and spectral efficiencies for layered and conventional modulations
CA002502924A CA2502924C (en) 2002-10-25 2003-10-16 Maximizing power and spectral efficiencies for layered and conventional modulations
US10/532,619 US7471735B2 (en) 2001-04-27 2003-10-16 Maximizing power and spectral efficiencies for layered and conventional modulations
IL168227A IL168227A (en) 2002-10-25 2005-04-25 Method and system for transmitting signals
NO20052423A NO333917B1 (en) 2002-10-25 2005-05-19 Maximizing power and spectral efficiencies for layered and conventional modulations.
US12/207,462 US7920643B2 (en) 2001-04-27 2008-09-09 Maximizing power and spectral efficiencies for layered and conventional modulations
US12/973,710 US8130818B2 (en) 2001-04-27 2010-12-20 Maximizing power and spectral efficiencies for layered and conventional modulations

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/844,401 US7209524B2 (en) 2001-04-27 2001-04-27 Layered modulation for digital signals
US42128802P 2002-10-25 2002-10-25
US60/421,288 2002-10-25

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US09/844,401 Continuation-In-Part US7209524B2 (en) 2001-04-27 2001-04-27 Layered modulation for digital signals

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US10532619 A-371-Of-International 2003-10-16
US10/532,619 A-371-Of-International US7471735B2 (en) 2001-04-27 2003-10-16 Maximizing power and spectral efficiencies for layered and conventional modulations
US12/207,462 Continuation US7920643B2 (en) 2001-04-27 2008-09-09 Maximizing power and spectral efficiencies for layered and conventional modulations

Publications (2)

Publication Number Publication Date
WO2004040897A2 WO2004040897A2 (en) 2004-05-13
WO2004040897A3 true WO2004040897A3 (en) 2004-07-01

Family

ID=32599985

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/032800 WO2004040897A2 (en) 2001-04-27 2003-10-16 Maximizing power and spectral efficiencies for layered and conventional modulations

Country Status (2)

Country Link
TW (1) TWI319939B (en)
WO (1) WO2004040897A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2166722A1 (en) * 2008-09-18 2010-03-24 Thomson Licensing A hierarchical quadrature (QAM) transmission scheme
CN109525519A (en) * 2017-09-19 2019-03-26 晨星半导体股份有限公司 Symbol rate estimation device, symbol rate estimating method and adjacent channel interference detecting apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5646935A (en) * 1994-03-15 1997-07-08 Kabushiki Kaisha Toshiba Hierarchical quadrature frequency multiplex signal format and apparatus for transmission and reception thereof
US20020064173A1 (en) * 2000-11-29 2002-05-30 Nec Corporation Broadcasting apparatus using OFDM modulation method
US20020126780A1 (en) * 2000-12-06 2002-09-12 Matsushita Electric Industrial Co., Ltd. OFDM signal transmissions system, porable terminal, and E-commerce system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5966412A (en) 1997-06-30 1999-10-12 Thomson Consumer Electronics, Inc. Apparatus and method for processing a Quadrature Amplitude Modulated (QAM) signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5646935A (en) * 1994-03-15 1997-07-08 Kabushiki Kaisha Toshiba Hierarchical quadrature frequency multiplex signal format and apparatus for transmission and reception thereof
US20020064173A1 (en) * 2000-11-29 2002-05-30 Nec Corporation Broadcasting apparatus using OFDM modulation method
US20020126780A1 (en) * 2000-12-06 2002-09-12 Matsushita Electric Industrial Co., Ltd. OFDM signal transmissions system, porable terminal, and E-commerce system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1559253A4 *

Also Published As

Publication number Publication date
WO2004040897A2 (en) 2004-05-13
TW200419979A (en) 2004-10-01
TWI319939B (en) 2010-01-21

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