HK123194A - A method of adapting a viterbi algorithm to a channel having varying transmission properties, and apparatus for carrying out the method - Google Patents

A method of adapting a viterbi algorithm to a channel having varying transmission properties, and apparatus for carrying out the method

Info

Publication number
HK123194A
HK123194A HK123194A HK123194A HK123194A HK 123194 A HK123194 A HK 123194A HK 123194 A HK123194 A HK 123194A HK 123194 A HK123194 A HK 123194A HK 123194 A HK123194 A HK 123194A
Authority
HK
Hong Kong
Prior art keywords
viterbi
analyser
channel
estimation
transition
Prior art date
Application number
HK123194A
Other languages
English (en)
Inventor
Bjoern Olof Gudmundson Perois
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 HK123194A publication Critical patent/HK123194A/xx

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
    • 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
    • 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
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0236—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols using estimation of the other symbols
    • 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
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03292—Arrangements for operating in conjunction with other apparatus with channel estimation circuitry
HK123194A 1989-10-24 1994-11-10 A method of adapting a viterbi algorithm to a channel having varying transmission properties, and apparatus for carrying out the method HK123194A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8903526A SE464902B (sv) 1989-10-24 1989-10-24 Foerfarande att adaptera en viterbialgoritm till en kanal med skiftande oeverfoeringsegenskaper samt en anordning foer genomfoerande av foerfarandet

Publications (1)

Publication Number Publication Date
HK123194A true HK123194A (en) 1994-11-18

Family

ID=20377260

Family Applications (1)

Application Number Title Priority Date Filing Date
HK123194A HK123194A (en) 1989-10-24 1994-11-10 A method of adapting a viterbi algorithm to a channel having varying transmission properties, and apparatus for carrying out the method

Country Status (17)

Country Link
US (1) US5164961A (xx)
EP (1) EP0425458B1 (xx)
JP (1) JPH04502695A (xx)
KR (1) KR970007615B1 (xx)
AT (1) ATE107102T1 (xx)
AU (1) AU626471B2 (xx)
CA (1) CA2044261C (xx)
DE (1) DE69009674T2 (xx)
DK (1) DK0425458T3 (xx)
ES (1) ES2054326T3 (xx)
FI (1) FI912862A0 (xx)
HK (1) HK123194A (xx)
IE (1) IE65267B1 (xx)
NO (1) NO302730B1 (xx)
NZ (1) NZ235350A (xx)
SE (1) SE464902B (xx)
WO (1) WO1991007035A1 (xx)

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SE503522C2 (sv) * 1994-10-31 1996-07-01 Ericsson Telefon Ab L M Förfarande och anordning för kanalestimering
US5586128A (en) * 1994-11-17 1996-12-17 Ericsson Ge Mobile Communications Inc. System for decoding digital data using a variable decision depth
CA2147087A1 (en) * 1995-04-13 1996-10-14 Guy Begin Method and apparatus for correcting and decoding a sequence of branches representing encoded data bits into estimated information bits
JP3674111B2 (ja) * 1995-10-25 2005-07-20 三菱電機株式会社 データ伝送装置
US5742621A (en) * 1995-11-02 1998-04-21 Motorola Inc. Method for implementing an add-compare-select butterfly operation in a data processing system and instruction therefor
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US6556634B1 (en) 1999-02-10 2003-04-29 Ericsson, Inc. Maximum likelihood rake receiver for use in a code division, multiple access wireless communication system
US6687317B1 (en) * 1999-04-16 2004-02-03 Koninklijke Philips Electronics N.V. Method for correlation directed echo cancellation and channel equalization for the digital transmission link in vestigial side band amplitude modulation
US6470192B1 (en) 1999-08-16 2002-10-22 Telefonaktiebolaget Lm Ericcson (Publ) Method of an apparatus for beam reduction and combining in a radio communications system
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US7079586B1 (en) * 2000-03-16 2006-07-18 Koninklijke Philips Electronics N.V. Systems and methods for optimal distribution of symbols in a fixed size data packet to improve receiver performance
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DE602006017169D1 (de) * 2006-04-12 2010-11-11 Alcatel Lucent Viterbi-Entzerrer für Signale mit Wechselbitmodulation, optischer Empfänger und dessen Übertragungssystem und Viterbi-Entzerrerverfahren
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Also Published As

Publication number Publication date
NO912432L (no) 1991-06-21
DE69009674D1 (de) 1994-07-14
ATE107102T1 (de) 1994-06-15
EP0425458A1 (en) 1991-05-02
IE65267B1 (en) 1995-10-18
DE69009674T2 (de) 1994-09-22
CA2044261C (en) 1999-04-27
FI912862A0 (fi) 1991-06-13
DK0425458T3 (da) 1994-10-03
JPH04502695A (ja) 1992-05-14
EP0425458B1 (en) 1994-06-08
NO912432D0 (no) 1991-06-21
SE8903526D0 (sv) 1989-10-24
ES2054326T3 (es) 1994-08-01
SE8903526L (sv) 1991-04-25
IE903522A1 (en) 1991-04-24
KR970007615B1 (ko) 1997-05-13
KR920702125A (ko) 1992-08-12
WO1991007035A1 (en) 1991-05-16
AU626471B2 (en) 1992-07-30
US5164961A (en) 1992-11-17
AU6549290A (en) 1991-05-31
NZ235350A (en) 1993-04-28
SE464902B (sv) 1991-06-24
NO302730B1 (no) 1998-04-14
CA2044261A1 (en) 1991-04-25

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20080910