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NO20010313L - Estimering av kanalimpulsrespons ved bruk av mottatt signalvarians - Google Patents

Estimering av kanalimpulsrespons ved bruk av mottatt signalvarians

Info

Publication number
NO20010313L
NO20010313L NO20010313A NO20010313A NO20010313L NO 20010313 L NO20010313 L NO 20010313L NO 20010313 A NO20010313 A NO 20010313A NO 20010313 A NO20010313 A NO 20010313A NO 20010313 L NO20010313 L NO 20010313L
Authority
NO
Norway
Prior art keywords
impulse response
estimation
received signal
channel impulse
estimated
Prior art date
Application number
NO20010313A
Other languages
English (en)
Other versions
NO20010313D0 (no
Inventor
Olli Piirainen
Aki Happonen
Original Assignee
Nokia Networks Oy
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 Networks Oy filed Critical Nokia Networks Oy
Publication of NO20010313D0 publication Critical patent/NO20010313D0/no
Publication of NO20010313L publication Critical patent/NO20010313L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Den foreliggende oppfinnelsen foreslår en innretning (1) for prosessering av mottatte signaler transmittert via en transmisjonskanal (4), idet innretningen omfat- ter en ervervingsanordning (2a) tilpasset til å oppnå en estimert responsfunksjon (h+e) til transmisjonskanalen (4), basert på de mottatte signalene (y); en utled- ningsanordning (2b) tilpasset til å utlede en estimert varians (62) til de mottatte sig- nalene (y); og en modifiseringsanordning (2c) tilpasset til å modifisere den esti- merte responsfunksjonen (h+e) ved å anvende den estimerte variansen (52) på den estimerte responsfunksjonen (h+e), for derved å oppnå en modifisert impuls- respons (h). Den foreliggende oppfinnelsen foreslår også en tilsvarende frem- gangsmåte.
NO20010313A 1998-07-21 2001-01-19 Estimering av kanalimpulsrespons ved bruk av mottatt signalvarians NO20010313L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1998/004562 WO2000005847A1 (en) 1998-07-21 1998-07-21 Channel impulse response estimation using received signal variance

Publications (2)

Publication Number Publication Date
NO20010313D0 NO20010313D0 (no) 2001-01-19
NO20010313L true NO20010313L (no) 2001-03-19

Family

ID=8167012

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20010313A NO20010313L (no) 1998-07-21 2001-01-19 Estimering av kanalimpulsrespons ved bruk av mottatt signalvarians

Country Status (8)

Country Link
US (1) US6816558B2 (no)
EP (1) EP1099328B1 (no)
CN (1) CN1130882C (no)
AT (1) ATE270482T1 (no)
AU (1) AU8732198A (no)
DE (1) DE69824898T2 (no)
NO (1) NO20010313L (no)
WO (1) WO2000005847A1 (no)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69807535T2 (de) 1998-11-18 2003-04-24 Nokia Corp., Espoo Verfahren zur verbesserten schätzung der kanalimpulsantwort in tdma-systemen
JP2003500897A (ja) 1999-05-17 2003-01-07 ノキア コーポレイション Ｔｄｍａシステムにおけるノイズエネルギー推定方法
DE60034306T2 (de) * 2000-02-28 2007-12-27 Lucent Technologies Inc. Verfahren und Empfänger zur Schätzung von Kanalstossantworten für die Entzerrung digitaler Signale
EP1128618A3 (en) * 2000-02-28 2004-08-25 Lucent Technologies Inc. Method for tracking a time-variant channel impulse response
EP1168739B1 (fr) * 2000-06-23 2005-10-19 STMicroelectronics N.V. Procédé et dispositif d'estimation de la réponse impulsionelle d'un canal de transmission d'informations, en particulier pour un téléphone mobile cellulaire
US7627029B2 (en) * 2003-05-20 2009-12-01 Rambus Inc. Margin test methods and circuits
US7590175B2 (en) * 2003-05-20 2009-09-15 Rambus Inc. DFE margin test methods and circuits that decouple sample and feedback timing
CN1625075A (zh) * 2003-12-05 2005-06-08 皇家飞利浦电子股份有限公司 一种用于无线通信体系的噪声方差估算方法及装置
AU2006200589A1 (en) * 2005-02-21 2006-09-07 Nec Australia Pty Ltd Method for antenna verification

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5251233A (en) 1990-12-20 1993-10-05 Motorola, Inc. Apparatus and method for equalizing a corrupted signal in a receiver
US5231648A (en) 1991-03-21 1993-07-27 Northern Telecom Limited Adaptive equalizer for digital cellular radio
US5329547A (en) * 1993-03-11 1994-07-12 Motorola, Inc. Method and apparatus for coherent communication in a spread-spectrum communication system
DE4311656C1 (de) * 1993-04-08 1994-04-21 Ant Nachrichtentech Geradeinterpolationsmethode zur Kanalstoßantwortadaption in Empfängern für TDMA-Mobilfunksysteme
US5581580A (en) 1993-05-20 1996-12-03 Telefonaktiebolaget Lm Ericsson Low complexity model based channel estimation algorithm for fading channels
FI98018C (fi) 1994-08-18 1997-03-25 Nokia Mobile Phones Ltd Menetelmä ja laite radiokanavan impulssivasteen mittaamiseksi
US5761088A (en) * 1995-12-18 1998-06-02 Philips Electronics North America Corporation Method and apparatus for channel identification using incomplete or noisy information
FI962140A7 (fi) * 1996-05-21 1997-11-22 Nokia Corp Menetelmä impulssivasteen estimoimiseksi sekä vastaanotin
JP3327227B2 (ja) * 1998-11-11 2002-09-24 三菱マテリアル株式会社 無線通信システム及び記録媒体

Also Published As

Publication number Publication date
AU8732198A (en) 2000-02-14
WO2000005847A1 (en) 2000-02-03
CN1309857A (zh) 2001-08-22
DE69824898T2 (de) 2005-06-30
ATE270482T1 (de) 2004-07-15
NO20010313D0 (no) 2001-01-19
EP1099328B1 (en) 2004-06-30
EP1099328A1 (en) 2001-05-16
US20030007571A1 (en) 2003-01-09
DE69824898D1 (de) 2004-08-05
CN1130882C (zh) 2003-12-10
US6816558B2 (en) 2004-11-09

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