NO20062730L - Fremgangsmate og anordning ved tradlos kommunikasjon for a utfore postdeteksjonskonstellasjonskorreksjon - Google Patents

Fremgangsmate og anordning ved tradlos kommunikasjon for a utfore postdeteksjonskonstellasjonskorreksjon

Info

Publication number
NO20062730L
NO20062730L NO20062730A NO20062730A NO20062730L NO 20062730 L NO20062730 L NO 20062730L NO 20062730 A NO20062730 A NO 20062730A NO 20062730 A NO20062730 A NO 20062730A NO 20062730 L NO20062730 L NO 20062730L
Authority
NO
Norway
Prior art keywords
symbol
wireless communication
constellation pattern
real
perform post
Prior art date
Application number
NO20062730A
Other languages
English (en)
Inventor
Philippe Pietraski
Original Assignee
Interdigital Tech 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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of NO20062730L publication Critical patent/NO20062730L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/12—Channels characterised by the type of signal the signals being represented by different phase modulations of a single carrier
    • 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
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
    • H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
    • H04L27/3863—Compensation for quadrature error in the received signal
    • 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
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3809—Amplitude regulation arrangements
    • 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
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
    • H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
    • H04L27/3872—Compensation for phase rotation in the demodulated signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

En fremgangsmåte og anordning for å korrigere fasen og vinningen til data som er assosiert med et konstellasjonsmønster for et mangfold mottatte enkeltsymboler. Hvert symbol deles i reelle og imaginære symbolkomponenter. Fortegnene for de reelle og imaginære symbolkomponentene til hvert symbol bestemmes og blir anvendt som grunnlag for å bestemme hvorvidt symbolet assosieres med en første eller tredje kvadrant av konstellasjonsmønsteret eller en andre eller fjerde kvadrant av konstellasjonsmønsteret. De reelle og imaginære symbolkomponentenes absoluttverdier bestemmes og blir anvendt for å skape en første sum og en andre sum. En fasejusteringsverdi (, og en vinningsjusteringsverdi G utledes fra de første og andre summene, og blir anvendt for å opprette et komplekst tall. Hver av de mottatte enkeltsymboler multipliseres med det opprettede komplekstallet for å gi korrigerte konstellasjonsmønsterdata.
NO20062730A 2003-11-12 2006-06-12 Fremgangsmate og anordning ved tradlos kommunikasjon for a utfore postdeteksjonskonstellasjonskorreksjon NO20062730L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51910203P 2003-11-12 2003-11-12
PCT/US2004/036939 WO2005048468A2 (en) 2003-11-12 2004-11-05 Wireless communication method and apparatus for performing post-detection constellation correction

Publications (1)

Publication Number Publication Date
NO20062730L true NO20062730L (no) 2006-06-12

Family

ID=34590354

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20062730A NO20062730L (no) 2003-11-12 2006-06-12 Fremgangsmate og anordning ved tradlos kommunikasjon for a utfore postdeteksjonskonstellasjonskorreksjon

Country Status (11)

Country Link
US (3) US7106811B2 (no)
EP (2) EP1690338B1 (no)
JP (1) JP4210304B2 (no)
KR (3) KR100736197B1 (no)
CN (1) CN1954496B (no)
AT (1) ATE408271T1 (no)
CA (1) CA2545468A1 (no)
DE (1) DE602004016552D1 (no)
NO (1) NO20062730L (no)
TW (3) TW200948007A (no)
WO (1) WO2005048468A2 (no)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070058752A1 (en) * 2005-07-29 2007-03-15 Faraday Technology Corp. Methods and systems for estimating sampling frequency offset of OFDM symbols
US8645976B2 (en) 2007-05-03 2014-02-04 Qualcomm Incorporated Application programming interface (API) for restoring a default scan list in a wireless communications receiver
TW201448510A (zh) 2007-08-13 2014-12-16 Interdigital Patent Holdings 無縣通信中較高階調變適應方法及裝置
CN101388729B (zh) * 2007-09-14 2012-05-09 富士通株式会社 相位失衡监测装置、振幅失衡监测装置及使用它们的装置
US8155241B2 (en) * 2007-12-21 2012-04-10 Mediatek Inc. System for processing common gain values
EP2727305A4 (en) * 2011-07-01 2015-01-07 Intel Corp LAYER SHIFTING IN MULTIPLE INPUT COMMUNICATIONS, MULTIPLE OPEN LOOP OUTPUTS
CN104301275B (zh) * 2014-09-05 2017-09-12 江苏中兴微通信息科技有限公司 基于导频间隔优化的导频位置确定方法及收发装置
US9553754B1 (en) * 2015-09-10 2017-01-24 Qualcomm Incorporated Post distortion in satellite communications
CN105846985A (zh) * 2016-05-10 2016-08-10 华北电力大学 一种曲线拟合的宽带电力线ofdm子载波比特加载方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866395A (en) * 1988-11-14 1989-09-12 Gte Government Systems Corporation Universal carrier recovery and data detection for digital communication systems
FR2641917B1 (fr) * 1988-12-28 1994-07-22 Alcatel Transmission Dispositif de diagnostic du canal de transmission pour modem numerique
US5311545A (en) * 1991-06-17 1994-05-10 Hughes Aircraft Company Modem for fading digital channels affected by multipath
JP3067851B2 (ja) * 1991-08-08 2000-07-24 アツミ電氣株式会社 反射型赤外線センサ及びそれを用いたセンサシステム
ZA938324B (en) * 1992-11-24 1994-06-07 Qualcomm Inc Pilot carrier dot product circuit
EP1137232B1 (en) * 2000-03-23 2006-11-29 Matsushita Electric Industrial Co., Ltd. Digital reception apparatus
EP1573995A1 (en) * 2002-12-09 2005-09-14 Philips Intellectual Property & Standards GmbH Phase/gain imbalance estimation or compensation
JP2005197968A (ja) * 2004-01-06 2005-07-21 Fujitsu Ltd 信号処理回路並びに直交復調装置およびその誤差推定方法

Also Published As

Publication number Publication date
JP2007511179A (ja) 2007-04-26
EP1690338B1 (en) 2008-09-10
KR100736197B1 (ko) 2007-07-06
US7460617B2 (en) 2008-12-02
ATE408271T1 (de) 2008-09-15
KR20060101509A (ko) 2006-09-25
KR100955849B1 (ko) 2010-05-04
KR20060107854A (ko) 2006-10-16
US7106811B2 (en) 2006-09-12
US20090074111A1 (en) 2009-03-19
TW200614763A (en) 2006-05-01
US7715498B2 (en) 2010-05-11
CA2545468A1 (en) 2005-05-26
US20050100110A1 (en) 2005-05-12
KR20070087216A (ko) 2007-08-27
US20060280265A1 (en) 2006-12-14
DE602004016552D1 (de) 2008-10-23
EP1690338A4 (en) 2007-07-18
CN1954496B (zh) 2011-09-14
WO2005048468A2 (en) 2005-05-26
EP1690338A2 (en) 2006-08-16
TWI252630B (en) 2006-04-01
KR100977262B1 (ko) 2010-08-23
EP1993208A1 (en) 2008-11-19
TW200525909A (en) 2005-08-01
CN1954496A (zh) 2007-04-25
JP4210304B2 (ja) 2009-01-14
TWI355836B (en) 2012-01-01
WO2005048468A3 (en) 2006-08-17
TW200948007A (en) 2009-11-16

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