SE465697B - Saett att i ett digitalt radiooeverfoeringssystem foer oeverfoering av signaler mellan en saendande och en mottagande radiostation alstra godhetstal foer hos den mottagande radiostationen erhaallna binaera siffror - Google Patents

Saett att i ett digitalt radiooeverfoeringssystem foer oeverfoering av signaler mellan en saendande och en mottagande radiostation alstra godhetstal foer hos den mottagande radiostationen erhaallna binaera siffror

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Publication number
SE465697B
SE465697B SE8903079A SE8903079A SE465697B SE 465697 B SE465697 B SE 465697B SE 8903079 A SE8903079 A SE 8903079A SE 8903079 A SE8903079 A SE 8903079A SE 465697 B SE465697 B SE 465697B
Authority
SE
Sweden
Prior art keywords
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calculated
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bit sequence
Prior art date
Application number
SE8903079A
Other languages
English (en)
Swedish (sv)
Other versions
SE8903079L (sv
SE8903079D0 (sv
Inventor
C L Hammar
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
Priority to SE8903079A priority Critical patent/SE465697B/sv
Publication of SE8903079D0 publication Critical patent/SE8903079D0/xx
Priority to NZ235034A priority patent/NZ235034A/en
Priority to DE69012492T priority patent/DE69012492T2/de
Priority to KR1019910700456A priority patent/KR950012982B1/ko
Priority to PCT/SE1990/000555 priority patent/WO1991004612A1/en
Priority to DK90850291.7T priority patent/DK0419432T3/da
Priority to AT90850291T priority patent/ATE111661T1/de
Priority to JP2513338A priority patent/JPH04501945A/ja
Priority to ES90850291T priority patent/ES2058878T3/es
Priority to EP90850291A priority patent/EP0419432B1/de
Priority to CA002039708A priority patent/CA2039708C/en
Priority to AU64157/90A priority patent/AU626023B2/en
Priority to IE332690A priority patent/IE65265B1/en
Priority to US07/583,309 priority patent/US5099499A/en
Publication of SE8903079L publication Critical patent/SE8903079L/
Priority to NO911663A priority patent/NO301958B1/no
Priority to FI912177A priority patent/FI102334B/sv
Publication of SE465697B publication Critical patent/SE465697B/sv
Priority to HK6195A priority patent/HK6195A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
SE8903079A 1989-09-19 1989-09-19 Saett att i ett digitalt radiooeverfoeringssystem foer oeverfoering av signaler mellan en saendande och en mottagande radiostation alstra godhetstal foer hos den mottagande radiostationen erhaallna binaera siffror SE465697B (sv)

Priority Applications (17)

Application Number Priority Date Filing Date Title
SE8903079A SE465697B (sv) 1989-09-19 1989-09-19 Saett att i ett digitalt radiooeverfoeringssystem foer oeverfoering av signaler mellan en saendande och en mottagande radiostation alstra godhetstal foer hos den mottagande radiostationen erhaallna binaera siffror
NZ235034A NZ235034A (en) 1989-09-19 1990-08-23 Determining quality factors for binary digits in viterbi-analysis of a signal
KR1019910700456A KR950012982B1 (ko) 1989-09-19 1990-08-30 신호를 비터비분석허여 얻어진 이진디지트에 대해 양호도를 발생하는 방법
ES90850291T ES2058878T3 (es) 1989-09-19 1990-08-30 Un metodo de generar factores de calidad para digitos binarios obtenidos en el analisis de viterbi de una señal.
AU64157/90A AU626023B2 (en) 1989-09-19 1990-08-30 A method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal
PCT/SE1990/000555 WO1991004612A1 (en) 1989-09-19 1990-08-30 A method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal
DK90850291.7T DK0419432T3 (da) 1989-09-19 1990-08-30 Fremgangsmåde til generering af kvalitetsfaktorer for binær cifre, som er frembragt ved viterbianalysen af et signal
AT90850291T ATE111661T1 (de) 1989-09-19 1990-08-30 Methode zur erzeugung von qualitätsfaktoren für binäre zahlen erhalten durch viterbi-analyse eines signals.
JP2513338A JPH04501945A (ja) 1989-09-19 1990-08-30 信号のヴィタビ分析で得られた２進数値の品質係数を発生させる方法
DE69012492T DE69012492T2 (de) 1989-09-19 1990-08-30 Methode zur Erzeugung von Qualitätsfaktoren für binäre Zahlen erhalten durch Viterbi-Analyse eines Signals.
EP90850291A EP0419432B1 (de) 1989-09-19 1990-08-30 Methode zur Erzeugung von Qualitätsfaktoren für binäre Zahlen erhalten durch Viterbi-Analyse eines Signals
CA002039708A CA2039708C (en) 1989-09-19 1990-08-30 Method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal
IE332690A IE65265B1 (en) 1989-09-19 1990-09-13 A method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal
US07/583,309 US5099499A (en) 1989-09-19 1990-09-17 Method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal
NO911663A NO301958B1 (no) 1989-09-19 1991-04-26 Fremgangsmåte for generering av kvalitetsfaktorer for binære sifre som oppnås ved viterbi-analyse av et signal
FI912177A FI102334B (sv) 1989-09-19 1991-05-06 Sätt att vid viterbi-analys av en signal alstra godhetstal för vid ana lysen erhållna binära siffror
HK6195A HK6195A (en) 1989-09-19 1995-01-12 A method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8903079A SE465697B (sv) 1989-09-19 1989-09-19 Saett att i ett digitalt radiooeverfoeringssystem foer oeverfoering av signaler mellan en saendande och en mottagande radiostation alstra godhetstal foer hos den mottagande radiostationen erhaallna binaera siffror

Publications (3)

Publication Number Publication Date
SE8903079D0 SE8903079D0 (sv) 1989-09-19
SE8903079L SE8903079L (sv) 1991-03-20
SE465697B true SE465697B (sv) 1991-10-14

Family

ID=20376920

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8903079A SE465697B (sv) 1989-09-19 1989-09-19 Saett att i ett digitalt radiooeverfoeringssystem foer oeverfoering av signaler mellan en saendande och en mottagande radiostation alstra godhetstal foer hos den mottagande radiostationen erhaallna binaera siffror

Country Status (17)

Country Link
US (1) US5099499A (de)
EP (1) EP0419432B1 (de)
JP (1) JPH04501945A (de)
KR (1) KR950012982B1 (de)
AT (1) ATE111661T1 (de)
AU (1) AU626023B2 (de)
CA (1) CA2039708C (de)
DE (1) DE69012492T2 (de)
DK (1) DK0419432T3 (de)
ES (1) ES2058878T3 (de)
FI (1) FI102334B (de)
HK (1) HK6195A (de)
IE (1) IE65265B1 (de)
NO (1) NO301958B1 (de)
NZ (1) NZ235034A (de)
SE (1) SE465697B (de)
WO (1) WO1991004612A1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325402A (en) * 1991-04-30 1994-06-28 Nec Corporation Method and arrangement for estimating data sequences transmsitted using Viterbi algorithm
US5303263A (en) * 1991-06-25 1994-04-12 Oki Electric Industry Co., Ltd. Transmission channel characteristic equalizer
JP2876497B2 (ja) * 1991-08-23 1999-03-31 松下電器産業株式会社 誤り訂正符復号化方法およびその装置
JP3120511B2 (ja) * 1991-11-21 2000-12-25 ソニー株式会社 ビタビ復号装置
US5577068A (en) * 1992-06-08 1996-11-19 Ericsson Ge Mobile Communications Inc. Generalized direct update viterbi equalizer
SE470372B (sv) * 1992-06-23 1994-01-31 Ericsson Telefon Ab L M Metod jämte anordning att uppskatta kvaliten vid ramfelsdetektering i mottagaren hos ett radiokommunikationssystem
CN1036689C (zh) * 1993-05-10 1997-12-10 成都华仪电子科技开发中心 压缩维特比译码器
JP2864988B2 (ja) * 1994-06-21 1999-03-08 日本電気株式会社 軟判定信号出力形受信機
FI105514B (fi) * 1994-09-12 2000-08-31 Nokia Mobile Phones Ltd Vastaanottomenetelmä ja vastaanotin
US5586128A (en) * 1994-11-17 1996-12-17 Ericsson Ge Mobile Communications Inc. System for decoding digital data using a variable decision depth
JPH11501468A (ja) * 1994-12-12 1999-02-02 エリクソン インコーポレイテッド モービル通信システムにおけるダイバーシティ指向型チャネル割当
FI98027C (fi) * 1995-01-10 1997-03-25 Nokia Telecommunications Oy Pakettiradiojärjestelmä ja päätelaitteisto pakettiradiojärjestelmää varten
FI950843A (fi) * 1995-02-23 1996-08-24 Nokia Telecommunications Oy Menetelmä yhteyden laadun määrittämiseksi sekä vastaanotin
JP2798021B2 (ja) * 1995-10-25 1998-09-17 日本電気株式会社 信頼度生成方式
US5802116A (en) * 1996-04-04 1998-09-01 Lucent Technologies Inc. Soft decision Viterbi decoding with large constraint lengths
JPH11177641A (ja) * 1997-12-10 1999-07-02 Sony Corp 制御情報割当方法、制御方法、送信方法、受信方法、送信装置及び受信装置
US6567475B1 (en) 1998-12-29 2003-05-20 Ericsson Inc. Method and system for the transmission, reception and processing of 4-level and 8-level signaling symbols
US6484285B1 (en) 2000-02-07 2002-11-19 Ericsson, Inc. Tailbiting decoder and method
US6625236B1 (en) 2000-02-08 2003-09-23 Ericsson Inc. Methods and systems for decoding symbols by combining matched-filtered samples with hard symbol decisions
JP3855702B2 (ja) 2000-12-15 2006-12-13 ソニー株式会社 再生信号評価装置および方法、再生装置および方法、ならびに、記録装置および方法
US8369459B2 (en) * 2009-03-31 2013-02-05 Telefonaktiebolaget L M Ericsson (Publ) Diversity receivers and methods for relatively-delayed signals

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038636A (en) * 1975-06-18 1977-07-26 Doland George D Multiple decoding system
US4240156A (en) * 1979-03-29 1980-12-16 Doland George D Concatenated error correcting system
NZ198844A (en) * 1980-11-14 1984-05-31 Plessey Overseas Digital information transmission: two dimensional code
JPS5839708A (ja) * 1981-09-01 1983-03-08 Kobe Steel Ltd 熱間静水圧プレス処理法
US4756007A (en) * 1984-03-08 1988-07-05 Codex Corporation Adaptive communication rate modem
CA1260143A (en) * 1986-02-24 1989-09-26 Atsushi Yamashita Path trace viterbi decoder
JPS62233933A (ja) * 1986-04-03 1987-10-14 Toshiba Corp ヴイタビ復号法
US4847871A (en) * 1987-01-28 1989-07-11 Matsushita Electric Industrial Co., Ltd. Viterbi detector for digital signal
US4748626A (en) * 1987-01-28 1988-05-31 Racal Data Communications Inc. Viterbi decoder with reduced number of data move operations
US4888779A (en) * 1988-03-18 1989-12-19 International Business Machines Corporation Matched spectral null trellis codes for partial response channels

Also Published As

Publication number Publication date
ES2058878T3 (es) 1994-11-01
NZ235034A (en) 1992-11-25
FI102334B1 (fi) 1998-11-13
CA2039708C (en) 2000-02-15
DE69012492T2 (de) 1995-01-26
IE65265B1 (en) 1995-10-18
NO911663D0 (no) 1991-04-26
IE903326A1 (en) 1991-04-10
HK6195A (en) 1995-01-20
US5099499A (en) 1992-03-24
DE69012492D1 (de) 1994-10-20
EP0419432A1 (de) 1991-03-27
JPH04501945A (ja) 1992-04-02
NO301958B1 (no) 1997-12-29
FI912177A0 (fi) 1991-05-06
WO1991004612A1 (en) 1991-04-04
KR920702099A (ko) 1992-08-12
FI102334B (sv) 1998-11-13
CA2039708A1 (en) 1991-03-20
EP0419432B1 (de) 1994-09-14
KR950012982B1 (ko) 1995-10-24
AU626023B2 (en) 1992-07-23
DK0419432T3 (da) 1995-01-16
NO911663L (no) 1991-04-26
AU6415790A (en) 1991-04-18
SE8903079L (sv) 1991-03-20
ATE111661T1 (de) 1994-09-15
SE8903079D0 (sv) 1989-09-19

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