ATE322118T1 - Verfahren, empfänger und entzerrer, mit erhöhter recheneffizienz - Google Patents

Verfahren, empfänger und entzerrer, mit erhöhter recheneffizienz

Info

Publication number
ATE322118T1
ATE322118T1 AT01904890T AT01904890T ATE322118T1 AT E322118 T1 ATE322118 T1 AT E322118T1 AT 01904890 T AT01904890 T AT 01904890T AT 01904890 T AT01904890 T AT 01904890T AT E322118 T1 ATE322118 T1 AT E322118T1
Authority
AT
Austria
Prior art keywords
equalizer
branch metrics
receiver
current
calculated
Prior art date
Application number
AT01904890T
Other languages
English (en)
Inventor
Kambiz C Zangi
Rajaram Ramesh
Dennis Hui
Jung-Fu Cheng
Original Assignee
Ericsson Inc
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 Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of ATE322118T1 publication Critical patent/ATE322118T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • 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
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03184—Details concerning the metric
    • H04L25/03197—Details concerning the metric methods of calculation involving metrics
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03401—PSK
    • 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
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03203—Trellis search techniques
    • H04L25/03235—Trellis search techniques with state-reduction using feedback filtering

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)
  • Error Detection And Correction (AREA)
  • Optical Communication System (AREA)
  • Networks Using Active Elements (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
AT01904890T 2000-02-08 2001-01-17 Verfahren, empfänger und entzerrer, mit erhöhter recheneffizienz ATE322118T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/499,977 US6707849B1 (en) 2000-02-08 2000-02-08 Methods, receivers and equalizers having increased computational efficiency

Publications (1)

Publication Number Publication Date
ATE322118T1 true ATE322118T1 (de) 2006-04-15

Family

ID=23987543

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01904890T ATE322118T1 (de) 2000-02-08 2001-01-17 Verfahren, empfänger und entzerrer, mit erhöhter recheneffizienz

Country Status (8)

Country Link
US (1) US6707849B1 (de)
EP (1) EP1256217B1 (de)
KR (1) KR100763086B1 (de)
AT (1) ATE322118T1 (de)
AU (1) AU2001232826A1 (de)
DE (1) DE60118346T2 (de)
MY (1) MY123614A (de)
WO (1) WO2001060002A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6707849B1 (en) * 2000-02-08 2004-03-16 Ericsson Inc. Methods, receivers and equalizers having increased computational efficiency
DE60117421T2 (de) * 2000-11-15 2006-09-07 Texas Instruments Inc., Dallas Vollen Pfadmetrikrechner in Viterbidekodierung
EP1213884B1 (de) * 2000-12-04 2007-03-14 STMicroelectronics N.V. Verfahren und Vorrichtung zur Schätzung der aufeinanderfolgenden Werte digitaler Symbole insbesondere für die Entzerrung eines Datenübertragungskanals in der Mobiltelephonie
US7340016B2 (en) 2001-05-11 2008-03-04 Telefonaktiebolaget Lm Ericsson (Publ) Equalizers for multi-branch receiver
EP1432190A1 (de) * 2002-12-18 2004-06-23 Texas Instruments Incorporated Zustandreduzierte Folgeschätzung mit Hardwarebeschleunigung
GB0417292D0 (en) * 2004-08-03 2004-09-08 Ttp Communications Ltd Method of and apparatus for improving computational efficiency in sequence estimation
GB0420183D0 (en) * 2004-09-10 2004-10-13 Ttp Communications Ltd Metric calculation utilising pre-stored values
US7397849B2 (en) * 2005-03-18 2008-07-08 Interdigital Technology Corporation Channel estimation enhanced LMS equalizer
US20080152044A1 (en) * 2006-12-20 2008-06-26 Media Tek Inc. Veterbi decoding method for convolutionally encoded signal
CN103001899B (zh) * 2011-09-15 2016-08-17 京信通信系统（中国）有限公司 用于gsm通信系统的自适应均衡解调方法及装置
KR101371315B1 (ko) * 2012-06-19 2014-03-10 한국항공대학교산학협력단 다중 입력 다중 출력 통신 시스템의 심볼 검파 방법
US9602242B2 (en) 2014-06-10 2017-03-21 Telefonaktiebolaget L M Ericsson (Publ) Coherent reception with noisy channel state information
US9692622B2 (en) * 2014-06-10 2017-06-27 Telefonaktiebolaget L M Ericsson (Publ) Equalization with noisy channel state information

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2083304C (en) 1991-12-31 1999-01-26 Stephen R. Huszar Equalization and decoding for digital communication channel
EP0902545A4 (de) 1997-03-04 2001-11-14 Mitsubishi Electric Corp Serielles schätzverfahren
AT405470B (de) * 1997-10-10 1999-08-25 Kratochwil Konrad Verfahren und anordnung zur übertragung von digitalen daten
US6154507A (en) * 1997-12-22 2000-11-28 Ericsson Inc System and method for signal demodulation
US6252904B1 (en) * 1998-11-13 2001-06-26 Broadcom Corporation High-speed decoder for a multi-pair gigabit transceiver
US6608862B1 (en) * 1999-08-20 2003-08-19 Ericsson, Inc. Method and apparatus for computing prefilter coefficients
US6707849B1 (en) * 2000-02-08 2004-03-16 Ericsson Inc. Methods, receivers and equalizers having increased computational efficiency
US6658071B1 (en) * 2000-02-14 2003-12-02 Ericsson Inc. Delayed decision feedback log-map equalizer

Also Published As

Publication number Publication date
DE60118346T2 (de) 2006-08-24
KR20020072575A (ko) 2002-09-16
EP1256217B1 (de) 2006-03-29
KR100763086B1 (ko) 2007-10-04
EP1256217A1 (de) 2002-11-13
US6707849B1 (en) 2004-03-16
DE60118346D1 (de) 2006-05-18
MY123614A (en) 2006-05-31
AU2001232826A1 (en) 2001-08-20
WO2001060002A1 (en) 2001-08-16

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