DE69609026D1 - Verfahren zur Bestimmung einer Übertragungsrate aus dem Wachstum einer Pfadmetrik in einem Viterbi Dekodierer und Vorrichtung dazu - Google Patents

Verfahren zur Bestimmung einer Übertragungsrate aus dem Wachstum einer Pfadmetrik in einem Viterbi Dekodierer und Vorrichtung dazu

Info

Publication number
DE69609026D1
DE69609026D1 DE69609026T DE69609026T DE69609026D1 DE 69609026 D1 DE69609026 D1 DE 69609026D1 DE 69609026 T DE69609026 T DE 69609026T DE 69609026 T DE69609026 T DE 69609026T DE 69609026 D1 DE69609026 D1 DE 69609026D1
Authority
DE
Germany
Prior art keywords
growth
determining
transmission rate
viterbi decoder
path metric
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69609026T
Other languages
English (en)
Other versions
DE69609026T2 (de
Inventor
Stash Czaja
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Nokia Mobile Phones Ltd
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 Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Publication of DE69609026D1 publication Critical patent/DE69609026D1/de
Application granted granted Critical
Publication of DE69609026T2 publication Critical patent/DE69609026T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • 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
    • H04L1/0046—Code rate detection or code type detection
    • 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
    • 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
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • 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
    • H04L1/208—Arrangements for detecting or preventing errors in the information received using signal quality detector involving signal re-encoding
    • 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
    • H04L25/0262—Arrangements for detecting the data rate of an incoming signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
    • H04B2201/70705—Rate detection
DE69609026T 1995-09-15 1996-09-11 Verfahren zur Bestimmung einer Übertragungsrate aus dem Wachstum einer Pfadmetrik in einem Viterbi Dekodierer und Vorrichtung dazu Expired - Fee Related DE69609026T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/529,101 US5796757A (en) 1995-09-15 1995-09-15 Methods and apparatus for performing rate determination with a variable rate viterbi decoder

Publications (2)

Publication Number Publication Date
DE69609026D1 true DE69609026D1 (de) 2000-08-03
DE69609026T2 DE69609026T2 (de) 2001-03-08

Family

ID=24108527

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69609026T Expired - Fee Related DE69609026T2 (de) 1995-09-15 1996-09-11 Verfahren zur Bestimmung einer Übertragungsrate aus dem Wachstum einer Pfadmetrik in einem Viterbi Dekodierer und Vorrichtung dazu

Country Status (3)

Country Link
US (1) US5796757A (de)
EP (1) EP0763902B1 (de)
DE (1) DE69609026T2 (de)

Families Citing this family (75)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6934558B1 (en) * 1993-12-15 2005-08-23 Mlr, Llc Adaptive omni-modal radio apparatus and methods
US5777911A (en) * 1996-02-12 1998-07-07 Analog Devices, Inc. Digital filtering system
KR19990067611A (ko) * 1996-09-17 1999-08-25 요트.게.아. 롤페즈 개선된 잠금 감지를 가지는 전송 시스템
KR100213876B1 (ko) * 1996-10-04 1999-08-02 윤종용 비터비 복호기를 이용한 비트 오율 측정 장치
US6108372A (en) * 1996-10-30 2000-08-22 Qualcomm Inc. Method and apparatus for decoding variable rate data using hypothesis testing to determine data rate
FI102230B (fi) 1997-02-28 1998-10-30 Nokia Telecommunications Oy Vastaanottomenetelmä ja vastaanotin
US20060262832A1 (en) * 1997-03-12 2006-11-23 Interdigital Technology Corporation Convolutionally encoding and decoding multiple data streams
FI112894B (fi) * 1997-04-10 2004-01-30 Nokia Corp Menetelmä kehysvirhetodennäköisyyden pienentämiseksi tietokehysmuotoisessa tiedonsiirrossa
US6175590B1 (en) * 1997-08-08 2001-01-16 Qualcomm Inc. Method and apparatus for determining the rate of received data in a variable rate communication system
FI104673B (fi) 1997-10-24 2000-04-14 Nokia Mobile Phones Ltd Menetelmä signaalin datanopeuden muuntamiseksi ja lähetin
US6064678A (en) * 1997-11-07 2000-05-16 Qualcomm Incorporated Method for assigning optimal packet lengths in a variable rate communication system
JPH11163961A (ja) 1997-11-26 1999-06-18 Matsushita Electric Ind Co Ltd 伝送レート判定方法およびその装置
US6112325A (en) * 1998-01-23 2000-08-29 Dspc Technologies, Ltd. Method and device for detecting rate
US5974079A (en) * 1998-01-26 1999-10-26 Motorola, Inc. Method and apparatus for encoding rate determination in a communication system
US6134278A (en) * 1998-01-30 2000-10-17 Lucent Technologies Inc. Methods and apparatus for CDMA rate detection
US6067646A (en) * 1998-04-17 2000-05-23 Ameritech Corporation Method and system for adaptive interleaving
FI107767B (fi) 1998-05-26 2001-09-28 Nokia Mobile Phones Ltd Menetelmä ja järjestely konvoluutiodekoodauksen toteuttamiseksi
JPH11340840A (ja) * 1998-05-28 1999-12-10 Fujitsu Ltd 移動通信端末及び送信ビットレート判別方法
US6424631B1 (en) 1998-06-11 2002-07-23 Infineon Technologies North America Corp. Apparatus and methods for determining rate of transmitted variable rate data
US6865173B1 (en) 1998-07-13 2005-03-08 Infineon Technologies North America Corp. Method and apparatus for performing an interfrequency search
US6173254B1 (en) * 1998-08-18 2001-01-09 Denso Corporation, Ltd. Recorded message playback system for a variable bit rate system
US6917629B1 (en) 1998-09-11 2005-07-12 Ericsson Inc. Rate detection in radio communication systems
US6381455B1 (en) * 1998-10-15 2002-04-30 Lucent Technologies Inc. System and method for warning of and providing greater immunity from an impeding call drop in a digital wireless system
US6463097B1 (en) 1998-10-16 2002-10-08 Koninklijke Philips Electronics N.V. Rate detection in direct sequence code division multiple access systems
US6687233B1 (en) * 1998-10-16 2004-02-03 Koninklijke Philips Electronics N.V. Rate detection in direct sequence code division multiple access systems
US6233230B1 (en) * 1998-10-22 2001-05-15 Sony Corporation Neural network IS-95 rate determination
US6408418B1 (en) * 1998-10-29 2002-06-18 Lucent Technologies Inc. Reduced-state device and method for decoding data
US6347124B1 (en) * 1998-10-29 2002-02-12 Hughes Electronics Corporation System and method of soft decision decoding
US6463031B1 (en) 1998-12-03 2002-10-08 Nokia Mobile Phones Limited Rate determination technique that utilizes modified cumulative metrics to orthogonalize the rates
US6311154B1 (en) 1998-12-30 2001-10-30 Nokia Mobile Phones Limited Adaptive windows for analysis-by-synthesis CELP-type speech coding
US6553065B1 (en) 1999-02-04 2003-04-22 Nokia Corporation Mobile station employing CRC verification using decoding reliability and methods therefor
US6658047B1 (en) 1999-03-10 2003-12-02 Nokia Corporation Adaptive channel equalizer
US6721293B1 (en) 1999-03-10 2004-04-13 Nokia Corporation Unsupervised adaptive chip separation filter for CDMA terminal
US6137845A (en) * 1999-04-16 2000-10-24 Motorola, Inc. Method of determining an encoding rate in a communication system
FR2792788B1 (fr) * 1999-04-21 2001-07-13 Mitsubishi Electric France PROCEDE D'EQUILIBRAGE DU RAPPORT Eb/I DANS UN SYSTEME cdma A MULTIPLEXAGE DE SERVICE ET SYSTEME DE TELECOMMUNICATION L'UTILISANT
US6542492B1 (en) * 1999-05-28 2003-04-01 Koninklijke Philips Electronics N.V. Method and system of initializing state metrics for traffic, paging, and sync channels to enhance Viterbi decoder performance
US6621808B1 (en) * 1999-08-13 2003-09-16 International Business Machines Corporation Adaptive power control based on a rake receiver configuration in wideband CDMA cellular systems (WCDMA) and methods of operation
FR2797736B1 (fr) 1999-08-19 2001-10-12 Mitsubishi Electric France Procede de configuration d'un systeme de telecommunications
US6574289B1 (en) * 1999-10-26 2003-06-03 Koninklijke Philips Electronics N.V. Method for determining frame rate of a data frame in a communication system by using apriori knowledge of data frame
US6532250B1 (en) 1999-12-21 2003-03-11 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for spreading and despreading information signals in code division multiple access communications systems
US6728218B1 (en) * 2000-02-14 2004-04-27 Motorola, Inc. Method of dynamic rate switching via medium access channel layer signaling
JP3857488B2 (ja) * 2000-02-17 2006-12-13 富士通株式会社 誤り訂正装置
JP3297668B2 (ja) * 2000-04-26 2002-07-02 松下電器産業株式会社 符号／復号化装置及び符号／復号化方法
US7080009B2 (en) * 2000-05-01 2006-07-18 Motorola, Inc. Method and apparatus for reducing rate determination errors and their artifacts
JP3438778B2 (ja) * 2000-05-09 2003-08-18 日本電気株式会社 Ｗ−ｃｄｍａ伝送速度推定方法および装置
JP2002076923A (ja) * 2000-08-30 2002-03-15 Sony Corp 信号処理装置および方法、並びに記録媒体
US7234100B1 (en) * 2000-09-28 2007-06-19 Intel Corporation Decoder for trellis-based channel encoding
US7333419B2 (en) * 2000-11-30 2008-02-19 Sasken Communication Technologies, Inc. Method to improve performance and reduce complexity of turbo decoder
US6810078B2 (en) 2000-12-08 2004-10-26 Prairiecomm, Inc. Blind rate determination
US6934318B2 (en) * 2000-12-22 2005-08-23 Qualcomm, Incorporated Method and system for energy based frame rate determination
US7046719B2 (en) * 2001-03-08 2006-05-16 Motorola, Inc. Soft handoff between cellular systems employing different encoding rates
US7046746B1 (en) * 2001-03-19 2006-05-16 Cisco Systems Wireless Networking (Australia) Pty Limited Adaptive Viterbi decoder for a wireless data network receiver
US6658367B2 (en) * 2001-03-28 2003-12-02 Hewlett-Packard Development Company, L.P. System for time-bucketing of baselined data collector data
SG96225A1 (en) * 2001-06-04 2003-05-23 Oki Techno Ct Singapore Pte A method and apparatus for normalizing cdma rake output
US6848074B2 (en) 2001-06-21 2005-01-25 Arc International Method and apparatus for implementing a single cycle operation in a data processing system
KR100487182B1 (ko) * 2001-12-01 2005-05-03 삼성전자주식회사 통신시스템의 부호화/복호화 장치 및 방법
US7487430B2 (en) 2002-03-27 2009-02-03 Samsung Electronics Co., Ltd. Apparatus and method for receiving packet data control channel in a mobile communication system
US7006439B2 (en) * 2002-04-24 2006-02-28 Freescale Semiconductor, Inc. Method and apparatus for determining an upper data rate for a variable data rate signal
CN100431287C (zh) * 2002-04-29 2008-11-05 中兴通讯股份有限公司 可变速率通信系统中的速率检测方法
US7017126B2 (en) * 2002-05-29 2006-03-21 Lsi Logic Corporation Metacores: design and optimization techniques
US7111226B1 (en) * 2002-05-31 2006-09-19 Broadcom Corporation Communication decoder employing single trellis to support multiple code rates and/or multiple modulations
US7023880B2 (en) 2002-10-28 2006-04-04 Qualcomm Incorporated Re-formatting variable-rate vocoder frames for inter-system transmissions
US8635328B2 (en) * 2002-10-31 2014-01-21 International Business Machines Corporation Determining time varying thresholds for monitored metrics
US7467359B2 (en) * 2002-11-26 2008-12-16 Lsi Corporation Decoder using a memory for storing state metrics implementing a decoder trellis
JP3852401B2 (ja) 2002-12-18 2006-11-29 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 信号処理装置及び方法
US7103896B2 (en) * 2003-01-08 2006-09-05 Hewlett-Packard Development Company, L.P. Mechanism to aid optical beam focusing on optical disc
US6904557B2 (en) 2003-01-31 2005-06-07 Nokia Corporation Discontinuous transmission (DTX) detection using decoder metric
US6983158B2 (en) * 2003-02-25 2006-01-03 Nokia Corporation Multiple base station monitoring of digital paging channel to reduce an occurrence of missed pages by a mobile station
US7809090B2 (en) * 2005-12-28 2010-10-05 Alcatel-Lucent Usa Inc. Blind data rate identification for enhanced receivers
US7830817B1 (en) * 2007-12-05 2010-11-09 Sprint Spectrum L.P. Vocoder selection based on location of client device
EP2083418A1 (de) * 2008-01-24 2009-07-29 Deutsche Thomson OHG Verfahren und Vorrichtung zur Bestimmung und Verwendung einer zufälligen Frequenz zur Entschlüsselung von Wasserzeicheninformationen, die in einem empfangenen Signal und mit einer ursprünglichen zufälligen Frequenz auf der Verschlüsselungsseite eingebettet wurde
US10164765B2 (en) * 2017-02-10 2018-12-25 Raytheon Company Receivers and method for detecting a non-persistent communication superimposed on an overt communication channel
EP3776918B1 (de) 2018-04-12 2023-08-23 Raytheon Company Phasenänderungsdetektion bei optischen signalen
US11201677B1 (en) 2020-06-08 2021-12-14 Raytheon Company Hard-to-intercept multiple coherent transmitter communications
US11303360B2 (en) 2020-06-22 2022-04-12 Raytheon Company Methods and apparatus supporting non-persistent communications

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4802174A (en) * 1986-02-19 1989-01-31 Sony Corporation Viterbi decoder with detection of synchronous or asynchronous states
FI84866C (fi) * 1990-03-12 1992-01-27 Nokia Mobile Phones Ltd Foerbaettring av en viterbi-algoritm.
US5375129A (en) * 1990-07-19 1994-12-20 Technophone Limited Maximum likelihood sequence detector
US5509020A (en) * 1993-05-27 1996-04-16 Sony Corporation Viterbi decoding apparatus and methods
JP2965056B2 (ja) * 1993-05-27 1999-10-18 ソニー株式会社 復号化装置
US5566206A (en) * 1993-06-18 1996-10-15 Qualcomm Incorporated Method and apparatus for determining data rate of transmitted variable rate data in a communications receiver
ZA947317B (en) * 1993-09-24 1995-05-10 Qualcomm Inc Multirate serial viterbi decoder for code division multiple access system applications

Also Published As

Publication number Publication date
EP0763902A1 (de) 1997-03-19
US5796757A (en) 1998-08-18
EP0763902B1 (de) 2000-06-28
DE69609026T2 (de) 2001-03-08

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8339 Ceased/non-payment of the annual fee