ATE386392T1 - System, verfahren und computerprogramm zum demodulieren von quadraturamplitudenmodulierten signalen - Google Patents

System, verfahren und computerprogramm zum demodulieren von quadraturamplitudenmodulierten signalen

Info

Publication number
ATE386392T1
ATE386392T1 AT04756139T AT04756139T ATE386392T1 AT E386392 T1 ATE386392 T1 AT E386392T1 AT 04756139 T AT04756139 T AT 04756139T AT 04756139 T AT04756139 T AT 04756139T AT E386392 T1 ATE386392 T1 AT E386392T1
Authority
AT
Austria
Prior art keywords
computer program
modulated signals
amplitude modulated
signal
user
Prior art date
Application number
AT04756139T
Other languages
English (en)
Inventor
Thomas Kenney
Gillyoung Jung
Jean-Marie Tran
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 ATE386392T1 publication Critical patent/ATE386392T1/de

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
    • H04L27/38Demodulator circuits; Receiver circuits
    • H04L27/3809Amplitude regulation arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
AT04756139T 2003-06-27 2004-06-25 System, verfahren und computerprogramm zum demodulieren von quadraturamplitudenmodulierten signalen ATE386392T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/608,697 US7289551B2 (en) 2003-06-27 2003-06-27 System, method and computer program product for demodulating quadrature amplitude modulated signals

Publications (1)

Publication Number Publication Date
ATE386392T1 true ATE386392T1 (de) 2008-03-15

Family

ID=33540649

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04756139T ATE386392T1 (de) 2003-06-27 2004-06-25 System, verfahren und computerprogramm zum demodulieren von quadraturamplitudenmodulierten signalen

Country Status (6)

Country Link
US (1) US7289551B2 (de)
EP (1) EP1647117B1 (de)
CN (1) CN1833416A (de)
AT (1) ATE386392T1 (de)
DE (1) DE602004011777T2 (de)
WO (1) WO2005004423A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7502426B2 (en) * 2003-09-09 2009-03-10 Interdigital Technology Corporation Method for estimating signal magnitude, noise power, and signal-to-noise ratio of received signals
US7633913B2 (en) * 2004-11-05 2009-12-15 Nextel Communications Inc. Wireless communication system using joint detection to compensate for poor RF condition based on user priority
US7924778B2 (en) * 2005-08-12 2011-04-12 Nextel Communications Inc. System and method of increasing the data throughput of the PDCH channel in a wireless communication system
US7609754B2 (en) * 2005-08-30 2009-10-27 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for received communication signal processing
KR20120132994A (ko) 2011-05-30 2012-12-10 삼성전자주식회사 소프트 디맵핑 장치 및 방법

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5537443A (en) * 1993-01-19 1996-07-16 Ntt Mobile Communications Network Inc. Interference signal cancelling method, receiver and communication system using the same
US5446771A (en) * 1994-01-24 1995-08-29 Motorola, Inc. Adaptive coherent signal detection method and apparatus
US6608868B1 (en) * 1999-01-19 2003-08-19 Matsushita Electric Industrial Co., Ltd. Apparatus and method for digital wireless communications
JP3522651B2 (ja) * 2000-05-19 2004-04-26 松下電器産業株式会社 通信端末装置及び復調方法
US6430214B1 (en) * 2000-05-22 2002-08-06 Motorola, Inc. Fading resistant multi-level QAM receiver
US6647055B2 (en) * 2000-08-31 2003-11-11 Wen-Yi Kuo Adaptive channel estimation using continuous pilot signal based on doppler period

Also Published As

Publication number Publication date
WO2005004423A1 (en) 2005-01-13
DE602004011777D1 (de) 2008-03-27
EP1647117B1 (de) 2008-02-13
CN1833416A (zh) 2006-09-13
DE602004011777T2 (de) 2009-02-05
US20040264590A1 (en) 2004-12-30
US7289551B2 (en) 2007-10-30
EP1647117A1 (de) 2006-04-19

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