ATE466439T1 - Erzeugung einer modulation höherer ordnung unter verwendung von qpsk-modulationen - Google Patents

Erzeugung einer modulation höherer ordnung unter verwendung von qpsk-modulationen

Info

Publication number
ATE466439T1
ATE466439T1 AT05718201T AT05718201T ATE466439T1 AT E466439 T1 ATE466439 T1 AT E466439T1 AT 05718201 T AT05718201 T AT 05718201T AT 05718201 T AT05718201 T AT 05718201T AT E466439 T1 ATE466439 T1 AT E466439T1
Authority
AT
Austria
Prior art keywords
higher order
order modulation
constellation points
modulation
qpsk
Prior art date
Application number
AT05718201T
Other languages
English (en)
Inventor
Jyrki Maentylae
Risto Alasaarela
Tapio M Heikkilae
Original Assignee
Nokia Corp
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 Nokia Corp filed Critical Nokia Corp
Application granted granted Critical
Publication of ATE466439T1 publication Critical patent/ATE466439T1/de

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
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
AT05718201T 2004-04-14 2005-03-14 Erzeugung einer modulation höherer ordnung unter verwendung von qpsk-modulationen ATE466439T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04008868 2004-04-14
PCT/IB2005/000636 WO2005101781A1 (en) 2004-04-14 2005-03-14 Generating higher order modulation using qpsk modulations

Publications (1)

Publication Number Publication Date
ATE466439T1 true ATE466439T1 (de) 2010-05-15

Family

ID=34962729

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05718201T ATE466439T1 (de) 2004-04-14 2005-03-14 Erzeugung einer modulation höherer ordnung unter verwendung von qpsk-modulationen

Country Status (7)

Country Link
US (1) US7680213B2 (de)
EP (1) EP1735982B1 (de)
CN (1) CN1961556B (de)
AT (1) ATE466439T1 (de)
DE (1) DE602005020918D1 (de)
PL (1) PL1735982T3 (de)
WO (1) WO2005101781A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080118003A1 (en) * 2002-11-13 2008-05-22 Industrial Technology Research Institute Enhanced Wireless Communication System and Method Thereof
CN101547182B (zh) * 2009-04-17 2011-07-20 北京大学 一种qam星座图的映射和解映射方法
WO2012139295A1 (en) 2011-04-14 2012-10-18 Alcatel Lucent Method and apparatus for implementing high-order modulation schemes using low-order modulators
WO2014136726A1 (ja) 2013-03-04 2014-09-12 三菱電機株式会社 送信装置、受信装置および通信システム
CN105009490B (zh) 2013-03-13 2018-07-24 三菱电机株式会社 发送装置、接收装置以及通信系统
EP2819327B1 (de) * 2013-06-28 2018-04-11 Alcatel Lucent Verfahren zur optischen Datenübertragung unter Verwendung von Polarisationsmultiplexing und QPSK

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2539261B1 (fr) * 1983-01-07 1989-07-13 Telecommunications Sa Emetteur pour faisceaux hertziens numeriques a multi-etats
FR2622376B1 (fr) * 1987-10-21 1990-01-26 Verdot Georges Modulateur par deplacement de phase a quatre etats, notamment pour modulation d'amplitude a deux porteuses en quadrature a grand nombre d'etats
US5237292A (en) 1992-07-01 1993-08-17 Space Systems/Loral Quadrature amplitude modulation system with compensation for transmission system characteristics
US5463355A (en) * 1994-07-15 1995-10-31 Loral Aerospace Corp. Wideband vector modulator which combines outputs of a plurality of QPSK modulators
US5612651A (en) 1996-01-02 1997-03-18 Loral Aerospace Corp. Modulating array QAM transmitter
US5815531A (en) * 1996-06-12 1998-09-29 Ericsson Inc. Transmitter for encoded data bits
US5867071A (en) * 1997-08-15 1999-02-02 Lockheed Martin Aerospace Corp. High power transmitter employing a high power QAM modulator
US7079585B1 (en) * 1999-11-23 2006-07-18 Thomson Licensing Gray encoding for hierarchical QAM transmission systems
US6674811B1 (en) * 2000-06-14 2004-01-06 Northrop Grumman Corporation Efficient pre-distorted 12/4 QAM modulator
US6593827B2 (en) * 2001-11-16 2003-07-15 Lockheed Martin Corporation Modulating array transmitter autocalibration method and system
WO2003053021A1 (en) 2001-12-18 2003-06-26 Nokia Corporation Method and system for generating higher order modulations with qpsk modulator
US7065153B2 (en) * 2002-02-06 2006-06-20 The Boeing Company High speed monolithic microwave integrated circuit (MMIC) quadrature phase shift keying (QPSK) and quadrature amplitude modulation (QAM) modulators
EP1418723A1 (de) 2002-11-05 2004-05-12 Siemens Aktiengesellschaft Verfahren zur Modulation eines binären Datenstroms
US7078981B2 (en) * 2004-07-27 2006-07-18 Lucent Technologies Inc. 16 QAM modulator and method of 16 QAM modulation

Also Published As

Publication number Publication date
PL1735982T3 (pl) 2010-10-29
US7680213B2 (en) 2010-03-16
DE602005020918D1 (de) 2010-06-10
US20050232374A1 (en) 2005-10-20
EP1735982B1 (de) 2010-04-28
CN1961556A (zh) 2007-05-09
WO2005101781A1 (en) 2005-10-27
CN1961556B (zh) 2010-11-03
EP1735982A1 (de) 2006-12-27

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