ATE413756T1 - Gleichzeitige schätzung von kanalimpulsantwort und gleichspannungsverschiebung - Google Patents

Gleichzeitige schätzung von kanalimpulsantwort und gleichspannungsverschiebung

Info

Publication number
ATE413756T1
ATE413756T1 AT02779787T AT02779787T ATE413756T1 AT E413756 T1 ATE413756 T1 AT E413756T1 AT 02779787 T AT02779787 T AT 02779787T AT 02779787 T AT02779787 T AT 02779787T AT E413756 T1 ATE413756 T1 AT E413756T1
Authority
AT
Austria
Prior art keywords
received signal
offset
voltage shift
impulse response
pulse response
Prior art date
Application number
AT02779787T
Other languages
English (en)
Inventor
Aki Happonen
Olli Piirainen
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 ATE413756T1 publication Critical patent/ATE413756T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • 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
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • 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
    • H04L25/06—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of DC offset
    • H04L25/062—Setting decision thresholds using feedforward techniques only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Nonlinear Science (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Networks Using Active Elements (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
AT02779787T 2001-09-27 2002-09-27 Gleichzeitige schätzung von kanalimpulsantwort und gleichspannungsverschiebung ATE413756T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0123290.9A GB0123290D0 (en) 2001-09-27 2001-09-27 DC offset correction in a mobile communication system

Publications (1)

Publication Number Publication Date
ATE413756T1 true ATE413756T1 (de) 2008-11-15

Family

ID=9922828

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02779787T ATE413756T1 (de) 2001-09-27 2002-09-27 Gleichzeitige schätzung von kanalimpulsantwort und gleichspannungsverschiebung

Country Status (8)

Country Link
US (1) US7317767B2 (de)
EP (1) EP1446926B1 (de)
CN (1) CN1623304A (de)
AT (1) ATE413756T1 (de)
AU (1) AU2002343124A1 (de)
DE (1) DE60229765D1 (de)
GB (1) GB0123290D0 (de)
WO (1) WO2003030476A2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1158300A (en) * 1999-10-27 2001-05-08 Nokia Corporation Dc offset correction in a mobile communication system
US7035353B2 (en) * 2001-10-24 2006-04-25 Zenith Electronics Corporation Channel estimation method blending correlation and least-squares based approaches
CN100550702C (zh) * 2001-10-30 2009-10-14 三洋电机株式会社 直接变换接收机
WO2004047388A1 (en) * 2002-11-20 2004-06-03 Telefonaktiebolaget Lm Ericsson (Publ) Method and corresponding arrangement for dc offset compensation using channel estimation
US7068735B2 (en) * 2003-06-16 2006-06-27 Broadcom Corp. System and method to perform DC compensation on a radio frequency burst in a cellular wireless network
GB0419487D0 (en) 2004-09-02 2004-10-06 Ttp Communications Ltd DC estimation in received signals
CN100505715C (zh) * 2005-06-14 2009-06-24 北京邮电大学 一种通信系统中的训练序列传输方法
US20080232486A1 (en) * 2007-03-19 2008-09-25 Sharp Laboratories Of America, Inc. Systems and methods for extending zadoff-chu sequences to a non-prime number length to minimize average correlation
US8411765B2 (en) * 2008-10-10 2013-04-02 Ziva Corporation Techniques and systems for wireless communications
EP2474102A4 (de) 2009-09-03 2016-06-22 Ziva Corp Verfahren und systeme für auf zeitumkehrungsvorkodierungen beruhende kommunikationen
US8565351B2 (en) * 2011-04-28 2013-10-22 Mediatek Singapore Pte. Ltd. Channel impulse response (CIR)/DC offset (DCO) joint estimation block and method
US11777763B2 (en) * 2020-03-20 2023-10-03 Nantworks, LLC Selecting a signal phase in a communication system
CN112737610B (zh) * 2020-12-29 2023-07-07 芯翼信息科技(上海)有限公司 直流偏移的估计和校准方法及装置
CN121441698A (zh) * 2025-12-31 2026-01-30 为准（北京）电子科技有限公司 直流偏移确定方法、装置、电子设备及存储介质

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5684827A (en) * 1995-10-04 1997-11-04 Zenith Electronics Corporation System for controlling the operating mode of an adaptive equalizer
US5748677A (en) * 1996-01-16 1998-05-05 Kumar; Derek D. Reference signal communication method and system
DE19606102C2 (de) * 1996-02-19 1998-09-03 Siemens Ag Verfahren zum Ausgleich des Gleichspannungsstöranteils von Empfangssignalen und derartig ausgestaltete Empfangseinrichtung bzw. Funkstation
FI101919B (fi) * 1996-11-21 1998-09-15 Nokia Telecommunications Oy Menetelmä impulssivasteen laskemiseksi ja vastaanotin
US6148047A (en) * 1998-05-06 2000-11-14 Philips Electronics North America Corporation DC offset compensation for zero if quadrature demodulator
US6504884B1 (en) 1999-05-12 2003-01-07 Analog Devices, Inc. Method for correcting DC offsets in a receiver
US6463107B1 (en) * 1999-07-01 2002-10-08 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatuses for synchronization and modulation type detection
MY133723A (en) 1999-09-17 2007-11-30 Ericsson Telefon Ab L M "apparatus and method for substantially eliminating a near-channel interfering amplitude modulated signal"
AU1158300A (en) 1999-10-27 2001-05-08 Nokia Corporation Dc offset correction in a mobile communication system

Also Published As

Publication number Publication date
GB0123290D0 (en) 2001-11-21
WO2003030476A2 (en) 2003-04-10
US7317767B2 (en) 2008-01-08
AU2002343124A1 (en) 2003-04-14
EP1446926A2 (de) 2004-08-18
EP1446926B1 (de) 2008-11-05
CN1623304A (zh) 2005-06-01
WO2003030476A3 (en) 2004-06-10
US20040209573A1 (en) 2004-10-21
DE60229765D1 (de) 2008-12-18

Similar Documents

Publication Publication Date Title
DE60229765D1 (de) Gleichzeitige schätzung von kanalimpulsantwort und gleichspannungsverschiebung
ATE279063T1 (de) Entzerrer mit ausgleich von gleichspannungsverschiebungen
ATE298956T1 (de) Kanalschätzer mit variabler anzahl von abgriffen
AU2001260851A1 (en) Time of arrival estimation for edge/gsm
ATE475227T1 (de) Ifdma-kommunikationssystem mit frequenzsprung
ATE223122T1 (de) Verfahren zur verbesserten schätzung der kanalimpulsantwort in tdma-systemen
ATE492104T1 (de) Frequenzbereichsentzerrung von kommunikationssignalen
ATE305198T1 (de) Verfahren zur amplituden- und phasen-schätzung in einem drahtlosen kommunikationssystem
DE59510894D1 (de) Verfahren zur erfassung von vitalfunktionen lebender körper
NO990775L (no) FremgangsmÕte for Õ overf°re binµre data, samt et data-transmisjonssystem
DE602004014329D1 (de) Verfahren und System zur Modulierung und Demodulierung von Signalen in UWB Kommunikationssystemen
ATE538574T1 (de) Verfahren und vorrichtung zur unterdrückung von co-kanalstörungen in einem empfänger
ATE304772T1 (de) Verfahren und einrichtung zur schätzung eines frequenzversatzes durch kombinierung von pilot - und datensymbolen
EP4708789A3 (de) Kanalschätzung für zweistufige sidelink-steuerung mit sidelink-datenkanal-dmrs
WO2003030423A1 (en) Ofdm transmitter and ofdm transmitting method
WO2005062196A3 (en) Method and apparatus for efficient data acquisition and interpolation
ATE278284T1 (de) Verfahren zur schätzung der übertragungsfunktion eines mehrträger-signalübertragungskanals und eines entsprechenden empfängers
AU2003246589A1 (en) Method and system for concurrent estimation of frequency offset and modulation index
ATE316717T1 (de) Ultrabreitbandempfänger und entsprechendes empfangsverfahren
DE60104203D1 (de) Verfahren zur Übertragung von Signalisierungsinformationen über zwei Kanälen
DE60016270D1 (de) Einrichtung und verfahren zur wesentlichen elimination eines amplitudenmodulierten nachbarkanal-interferenzsignals
DE50106033D1 (de) Verfahren zur schätzung von kanalparametern von funkkanälen eines w-cdma-mobilfunksystems
NO20010313L (no) Estimering av kanalimpulsrespons ved bruk av mottatt signalvarians
ATE334542T1 (de) Verfahren und vorrichtung zur umwandlung einer kanalschätzung
DE60314286D1 (de) Verfahren und vorrichtung zur übertragung digitaler information mit zeit und frequenz begrenzte funktionen

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties