SE522688C2 - Metod och apparatur för uppdatering av en utjämnare och styrning av samplingsfrekvens - Google Patents

Metod och apparatur för uppdatering av en utjämnare och styrning av samplingsfrekvens

Info

Publication number
SE522688C2
SE522688C2 SE0002887A SE0002887A SE522688C2 SE 522688 C2 SE522688 C2 SE 522688C2 SE 0002887 A SE0002887 A SE 0002887A SE 0002887 A SE0002887 A SE 0002887A SE 522688 C2 SE522688 C2 SE 522688C2
Authority
SE
Sweden
Prior art keywords
signal
real
receiver
component
known signal
Prior art date
Application number
SE0002887A
Other languages
English (en)
Swedish (sv)
Other versions
SE0002887L (sv
SE0002887D0 (sv
Inventor
Mattias Hyll
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of SE0002887D0 publication Critical patent/SE0002887D0/xx
Publication of SE0002887L publication Critical patent/SE0002887L/xx
Publication of SE522688C2 publication Critical patent/SE522688C2/sv

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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2676—Blind, i.e. without using known symbols
    • H04L27/2679—Decision-aided
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03522—Frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0038—Correction of carrier offset using an equaliser
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0055—Closed loops single phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0087—Out-of-band signals, (e.g. pilots)

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Detergent Compositions (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
SE0002887A 2000-07-17 2000-08-11 Metod och apparatur för uppdatering av en utjämnare och styrning av samplingsfrekvens SE522688C2 (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/617,813 US6856648B1 (en) 2000-07-17 2000-07-17 Method and apparatus for equalizer updating and sampling rate control

Publications (3)

Publication Number Publication Date
SE0002887D0 SE0002887D0 (sv) 2000-08-11
SE0002887L SE0002887L (sv) 2002-01-18
SE522688C2 true SE522688C2 (sv) 2004-02-24

Family

ID=24475168

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0002887A SE522688C2 (sv) 2000-07-17 2000-08-11 Metod och apparatur för uppdatering av en utjämnare och styrning av samplingsfrekvens

Country Status (8)

Country Link
US (1) US6856648B1 (de)
EP (1) EP1302017B1 (de)
CN (1) CN1299461C (de)
AT (1) ATE400935T1 (de)
AU (1) AU2001266538A1 (de)
DE (1) DE60134746D1 (de)
SE (1) SE522688C2 (de)
WO (1) WO2002007399A2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10160733A1 (de) * 2001-12-11 2003-08-28 Siemens Ag Verfahren zur kontinuierlichen Schätzung der Entzerrkoeffizienten für leitungsgebundene Übertragungssysteme
AU2003213704A1 (en) * 2002-03-19 2003-10-08 Thomson Licensing S.A. Slicing algorithm for multi-level modulation equalizing schemes
US20050242860A1 (en) * 2004-04-30 2005-11-03 Weijie Yun FFT-based multichannel video receiver
US7283074B2 (en) 2004-09-21 2007-10-16 Telegent Systems, Inc. Pilot-tone calibration for time-interleaved analog-to-digital converters
US7532667B2 (en) * 2004-11-05 2009-05-12 Interdigital Technology Corporation Pilot-directed and pilot/data-directed equalizers
US20070036233A1 (en) * 2005-08-15 2007-02-15 Xiaoyong Yu Sampling of data streams and supporting methods and apparatus
US7831001B2 (en) * 2006-12-19 2010-11-09 Sigmatel, Inc. Digital audio processing system and method
US10033555B2 (en) * 2016-09-14 2018-07-24 Analog Devices, Inc. Equalizer circuit optimization using coarse frequency detection
US12207210B2 (en) * 2020-02-27 2025-01-21 Nippon Telegraph And Telephone Corporation Receiving method, wireless communication method, receiving station, wireless communication system, and receiving program

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3707763C1 (de) 1987-03-11 1988-06-23 Ant Nachrichtentech Taktphasendetektor
US4815103A (en) * 1987-10-29 1989-03-21 American Telephone And Telegraph Company Equalizer-based timing recovery
JPH0687540B2 (ja) 1988-11-10 1994-11-02 日本電気株式会社 復調装置
US5200981A (en) 1990-08-07 1993-04-06 National Semiconductor Corporation Fine timing recovery for QAM modem receiver
US5414732A (en) * 1993-05-17 1995-05-09 Loral Aerospace Corp. Adaptive equalizer and method for operation at high symbol rates
US5894334A (en) 1994-03-21 1999-04-13 Rca Thomson Licensing Corporation Carrier recovery system for a vestigial sideband signal
KR960011419B1 (ko) * 1994-06-14 1996-08-22 대우전자 주식회사 복소 필터 장치
US5673293A (en) * 1994-09-08 1997-09-30 Hitachi America, Ltd. Method and apparatus for demodulating QAM and VSB signals
DE4445986C1 (de) 1994-12-22 1996-06-13 Ant Nachrichtentech Frequenzdetektor zur Trägerfrequenzsynchronisation
US5729173A (en) 1995-09-20 1998-03-17 Taisei Electric Incorporation Demodulation of quadrature amplitude modulation signals
US5694419A (en) * 1995-11-07 1997-12-02 Hitachi America, Ltd. Shared resource modulator-demodulator circuits for use with vestigial sideband signals
US5872815A (en) * 1996-02-16 1999-02-16 Sarnoff Corporation Apparatus for generating timing signals for a digital television signal receiver
US5828954A (en) 1996-04-04 1998-10-27 Lucent Technologies Inc. Transmission system for digital audio broadcasting
US5799038A (en) 1996-04-30 1998-08-25 Advantest Corporation Method for measuring modulation parameters of digital quadrature-modulated signal
SE517930C2 (sv) 1997-01-31 2002-08-06 Ericsson Telefon Ab L M Förfarande och anordning för initial synkronisering i ett kommunikationssystem
US6005893A (en) * 1997-09-23 1999-12-21 Telefonaktiebolaget Lm Ericsson Reduced complexity bit allocation to subchannels in a multi-carrier, high speed data transmission system
JP3116883B2 (ja) * 1997-11-07 2000-12-11 日本電気株式会社 Ｑａｍ信号の受信装置
US6496229B1 (en) * 1998-04-02 2002-12-17 Samsung Electronics Co., Ltd. TV receiver using read-only memory shared during VSB and QAM reception for synchrodyning I-F signal to baseband
US6259743B1 (en) * 1998-07-02 2001-07-10 Lucent Technologies Inc. Automatic constellation phase recovery in blind start-up of a dual mode CAP-QAM receiver
US6643321B1 (en) * 1998-09-30 2003-11-04 Alvarion Ltd. Method for rapid synchronization of a point to multipoint communication system
US6219379B1 (en) * 1998-11-17 2001-04-17 Philips Electronics North America Corporation VSB receiver with complex equalization for improved multipath performance
US6687292B1 (en) * 1999-12-21 2004-02-03 Texas Instruments Incorporated Timing phase acquisition method and device for telecommunications systems

Also Published As

Publication number Publication date
ATE400935T1 (de) 2008-07-15
DE60134746D1 (de) 2008-08-21
AU2001266538A1 (en) 2002-01-30
CN1299461C (zh) 2007-02-07
SE0002887L (sv) 2002-01-18
WO2002007399A3 (en) 2002-06-20
WO2002007399A2 (en) 2002-01-24
US6856648B1 (en) 2005-02-15
EP1302017A2 (de) 2003-04-16
EP1302017B1 (de) 2008-07-09
CN1561605A (zh) 2005-01-05
SE0002887D0 (sv) 2000-08-11

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