NO990568L - FremgangsmÕte for bestemmelse av forbindelseskvalitet, samt mottaker - Google Patents

FremgangsmÕte for bestemmelse av forbindelseskvalitet, samt mottaker

Info

Publication number
NO990568L
NO990568L NO990568A NO990568A NO990568L NO 990568 L NO990568 L NO 990568L NO 990568 A NO990568 A NO 990568A NO 990568 A NO990568 A NO 990568A NO 990568 L NO990568 L NO 990568L
Authority
NO
Norway
Prior art keywords
receiver
connection quality
well
determining
quality
Prior art date
Application number
NO990568A
Other languages
English (en)
Other versions
NO990568D0 (no
Inventor
Olli Piirainen
Original Assignee
Nokia Telecommunications 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 Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of NO990568D0 publication Critical patent/NO990568D0/no
Publication of NO990568L publication Critical patent/NO990568L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Quality & Reliability (AREA)
  • Error Detection And Correction (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Communication Control (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Circuits Of Receivers In General (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Telephonic Communication Services (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

Oppfinnelsen angår en fremgangsmåte for å bestemme forbindelseskvalitet, samt en mottaker i et radiosystem, hvor mottakeren omfatter en anordning (214) for å dekode et mottatt signal ved hjelp av Viterbi-metoden, ved hjelp av et trellis- diagram som omfatter en gruppe tilstandspunkter, og en anordning (214) for å beregne tilstands-overgangsverdier (TrO, Tr1) for de to mulige overganger i hvert punkt i diagrammet. For å bestemme på fordelaktig måte kvaliteten av forbindelsen mellom en sender og mottakeren, omfatter mottakeren ifølge oppfinnelsen en anordning (214) for i hver kolonne i trellisdiagrammet å beregne maksimumsverdiene (TrOmax, Tr1max) for begge overganger for punktene i kolonnen, for å bestemme absoluttverdien av forskjellen mellom de beregnede maksimumsverdiene, og en anordning (214) for å estimere forbindelseskvalitet ved å benytte denne absoluttverdien.
NO990568A 1996-08-09 1999-02-08 FremgangsmÕte for bestemmelse av forbindelseskvalitet, samt mottaker NO990568L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI963137A FI101845B1 (fi) 1996-08-09 1996-08-09 Menetelmä yhteyden laadun määrittämiseksi sekä vastaanotin
PCT/FI1997/000472 WO1998007240A1 (en) 1996-08-09 1997-08-11 Method for determining connection quality, and a receiver

Publications (2)

Publication Number Publication Date
NO990568D0 NO990568D0 (no) 1999-02-08
NO990568L true NO990568L (no) 1999-02-08

Family

ID=8546472

Family Applications (1)

Application Number Title Priority Date Filing Date
NO990568A NO990568L (no) 1996-08-09 1999-02-08 FremgangsmÕte for bestemmelse av forbindelseskvalitet, samt mottaker

Country Status (10)

Country Link
US (1) US6748035B2 (no)
EP (1) EP0916196B1 (no)
JP (1) JP2001501787A (no)
CN (1) CN1227682A (no)
AT (1) ATE290271T1 (no)
AU (1) AU728649B2 (no)
DE (1) DE69732634T2 (no)
FI (1) FI101845B1 (no)
NO (1) NO990568L (no)
WO (1) WO1998007240A1 (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6775320B1 (en) 1999-03-12 2004-08-10 Aware, Inc. Method and a multi-carrier transceiver supporting dynamic switching between active application sets
DE19943386A1 (de) * 1999-09-10 2001-03-22 Infineon Technologies Ag Verfahren zum Schätzen der Bitfehlerrate in einem Funkempfänger sowie entsprechender Funkempfänger
KR100487183B1 (ko) * 2002-07-19 2005-05-03 삼성전자주식회사 터보 부호의 복호 장치 및 방법

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3725655A1 (de) 1987-08-03 1989-02-16 Ant Nachrichtentech Verfahren zum auswerten von zweig- und pfadmetriken sowie anordnung
US5144644A (en) * 1989-10-13 1992-09-01 Motorola, Inc. Soft trellis decoding
GB2238692B (en) * 1989-11-29 1993-12-01 Technophone Ltd Data symbol estimation
US5375129A (en) * 1990-07-19 1994-12-20 Technophone Limited Maximum likelihood sequence detector
US5303263A (en) * 1991-06-25 1994-04-12 Oki Electric Industry Co., Ltd. Transmission channel characteristic equalizer
US5502735A (en) * 1991-07-16 1996-03-26 Nokia Mobile Phones (U.K.) Limited Maximum likelihood sequence detector
DE4224214C2 (de) * 1992-07-22 1995-02-09 Deutsche Forsch Luft Raumfahrt Verfahren zur quellengesteuerten Kanaldecodierung durch Erweiterung des Viterbi-Algorithmus
JP2605566B2 (ja) * 1992-12-25 1997-04-30 日本電気株式会社 適応型等化器
FI950843A (fi) * 1995-02-23 1996-08-24 Nokia Telecommunications Oy Menetelmä yhteyden laadun määrittämiseksi sekä vastaanotin

Also Published As

Publication number Publication date
CN1227682A (zh) 1999-09-01
AU3851797A (en) 1998-03-06
WO1998007240A1 (en) 1998-02-19
AU728649B2 (en) 2001-01-11
US6748035B2 (en) 2004-06-08
DE69732634T2 (de) 2005-12-29
EP0916196B1 (en) 2005-03-02
NO990568D0 (no) 1999-02-08
FI101845B (fi) 1998-08-31
DE69732634D1 (de) 2005-04-07
ATE290271T1 (de) 2005-03-15
FI963137A (fi) 1998-02-10
US20030123578A1 (en) 2003-07-03
EP0916196A1 (en) 1999-05-19
FI101845B1 (fi) 1998-08-31
FI963137A0 (fi) 1996-08-09
JP2001501787A (ja) 2001-02-06

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Legal Events

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