ES2172486T1 - Decodificador viterbi de canales multiples. - Google Patents

Decodificador viterbi de canales multiples.

Info

Publication number
ES2172486T1
ES2172486T1 ES01120761T ES01120761T ES2172486T1 ES 2172486 T1 ES2172486 T1 ES 2172486T1 ES 01120761 T ES01120761 T ES 01120761T ES 01120761 T ES01120761 T ES 01120761T ES 2172486 T1 ES2172486 T1 ES 2172486T1
Authority
ES
Spain
Prior art keywords
kbps
communication
viterbi
rate
channel decoder
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.)
Granted
Application number
ES01120761T
Other languages
English (en)
Other versions
ES2172486T3 (es
Inventor
John D Kaewell Jr
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.)
InterDigital Technology Corp
Original Assignee
InterDigital Technology Corp
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 InterDigital Technology Corp filed Critical InterDigital Technology Corp
Publication of ES2172486T1 publication Critical patent/ES2172486T1/es
Application granted granted Critical
Publication of ES2172486T3 publication Critical patent/ES2172486T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04L1/0059—Convolutional codes
    • H04L1/006—Trellis-coded modulation
    • 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
    • H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
    • H03M13/256—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with trellis coding, e.g. with convolutional codes and TCM
    • 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
    • H03M13/4107—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing add, compare, select [ACS] operations
    • 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
    • H03M13/4161—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing path management
    • H03M13/4169—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing path management using traceback
    • 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
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6502—Reduction of hardware complexity or efficient processing
    • 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
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6502—Reduction of hardware complexity or efficient processing
    • H03M13/6505—Memory efficient implementations
    • 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
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6569—Implementation on processors, e.g. DSPs, or software implementations
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • 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
    • H04L1/0052—Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables
    • 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
    • H04L1/0052—Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables
    • H04L1/0053—Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables specially adapted for power saving
    • 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
    • H04L1/004—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
    • H04L1/0059—Convolutional 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
    • H04L1/0072—Error control for data other than payload data, e.g. control data
    • 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
    • H04L1/0075—Transmission of coding parameters to receiver
    • 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
    • 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
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03675—Blind algorithms using gradient methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Radio Relay Systems (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Circuits Of Receivers In General (AREA)
  • Selective Calling Equipment (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transceivers (AREA)

Abstract

Un decodificador para decodificar simultáneamente una pluralidad de señales de datos codificadas recibidos de forma convolucionada, teniendo al menos dos de las señales codificadas una velocidad de datos diferente, comprendiendo el decodificador: - un Circuito de Cálculo de Distancia Euclidiana que tiene una entrada configurada para recibir los símbolos I y Q no decodificados de la pluralidad de señales de datos codificadas y emitiendo distancias Euclidianas correspondientes a cada señal codificada basada en parte por los símbolos de I y Q recibidos; para cada señal de datos, un circuito de Suma-Comparación-Selección que tiene una entrada configurada para recibir estas distancias Euclidianas del canal y disponiendo estas distancias de señales de datos sobre un retículo; y - un circuito de proceso de seguimiento para seguir las decisiones en cada retículo de señal de datos para emitir los símbolos de decodificados de cada señal de datos.
ES01120761T 1997-03-12 1998-03-04 Descodificador de viterbi multicanal. Expired - Lifetime ES2172486T3 (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US4047797P 1997-03-12 1997-03-12
US40477P 1997-03-12
US08/871,008 US6005898A (en) 1997-03-12 1997-06-06 Multichannel viterbi decoder
US871008 1997-06-06

Publications (2)

Publication Number Publication Date
ES2172486T1 true ES2172486T1 (es) 2002-10-01
ES2172486T3 ES2172486T3 (es) 2004-12-16

Family

ID=26717094

Family Applications (8)

Application Number Title Priority Date Filing Date
ES01120761T Expired - Lifetime ES2172486T3 (es) 1997-03-12 1998-03-04 Descodificador de viterbi multicanal.
ES98908938T Expired - Lifetime ES2146560T3 (es) 1997-03-12 1998-03-04 Sistema de comunicaciones multicanal con decodificador.
ES10179535T Expired - Lifetime ES2387708T3 (es) 1997-03-12 1998-03-04 Método y aparato para comunicación inalámbrica
ES01120763T Expired - Lifetime ES2172488T3 (es) 1997-03-12 1998-03-04 Descodificador de viterbi multicanal.
ES04009884T Expired - Lifetime ES2268532T3 (es) 1997-03-12 1998-03-04 Descodificador viterbi multicanal.
ES07025032T Expired - Lifetime ES2386278T3 (es) 1997-03-12 1998-03-04 Método y aparato para la adaptación de la velocidad de datos en un sistema de comunicación de AMDC
ES01120762T Expired - Lifetime ES2172487T3 (es) 1997-03-12 1998-03-04 Sistema de comunicaciones multicanal con decodificador.
ES06012665T Expired - Lifetime ES2300083T3 (es) 1997-03-12 1998-03-04 Descodificador de viterbi multicanal.

Family Applications After (7)

Application Number Title Priority Date Filing Date
ES98908938T Expired - Lifetime ES2146560T3 (es) 1997-03-12 1998-03-04 Sistema de comunicaciones multicanal con decodificador.
ES10179535T Expired - Lifetime ES2387708T3 (es) 1997-03-12 1998-03-04 Método y aparato para comunicación inalámbrica
ES01120763T Expired - Lifetime ES2172488T3 (es) 1997-03-12 1998-03-04 Descodificador de viterbi multicanal.
ES04009884T Expired - Lifetime ES2268532T3 (es) 1997-03-12 1998-03-04 Descodificador viterbi multicanal.
ES07025032T Expired - Lifetime ES2386278T3 (es) 1997-03-12 1998-03-04 Método y aparato para la adaptación de la velocidad de datos en un sistema de comunicación de AMDC
ES01120762T Expired - Lifetime ES2172487T3 (es) 1997-03-12 1998-03-04 Sistema de comunicaciones multicanal con decodificador.
ES06012665T Expired - Lifetime ES2300083T3 (es) 1997-03-12 1998-03-04 Descodificador de viterbi multicanal.

Country Status (10)

Country Link
US (2) US6005898A (es)
EP (8) EP1439640B1 (es)
JP (1) JP3988956B2 (es)
CN (2) CN1109414C (es)
AT (7) ATE268074T1 (es)
DE (7) DE69838922T2 (es)
DK (6) DK1161019T3 (es)
ES (8) ES2172486T3 (es)
HK (7) HK1024357A1 (es)
WO (1) WO1998040971A1 (es)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060262832A1 (en) * 1997-03-12 2006-11-23 Interdigital Technology Corporation Convolutionally encoding and decoding multiple data streams
US6404828B2 (en) * 1997-03-12 2002-06-11 Interdigital Technology Corporation Multichannel decoder
US6301683B1 (en) * 1997-06-09 2001-10-09 Vocal Technologies, Ltd. Trellis encoding technique for PCM modems
US6400966B1 (en) * 1997-10-07 2002-06-04 Telefonaktie Bolaget Lm Ericsson (Publ) Base station architecture for a mobile communications system
US6259687B1 (en) * 1997-10-31 2001-07-10 Interdigital Technology Corporation Communication station with multiple antennas
US6112325A (en) * 1998-01-23 2000-08-29 Dspc Technologies, Ltd. Method and device for detecting rate
JP4048510B2 (ja) * 1998-03-05 2008-02-20 富士通株式会社 Ｃｄｍａ移動通信システムにおける無線基地局
FI104774B (fi) * 1998-03-23 2000-03-31 Nokia Networks Oy Menetelmä ja laitteisto modulaation ilmaisemiseksi
US6269130B1 (en) * 1998-08-04 2001-07-31 Qualcomm Incorporated Cached chainback RAM for serial viterbi decoder
US6735724B1 (en) * 1999-04-08 2004-05-11 Texas Instruments Incorporated Detection error estimation and method
US8050198B2 (en) 1999-05-24 2011-11-01 Qualcomm Incorporated Method and system for scheduling data transmission in communication systems
KR100346152B1 (ko) 1999-09-17 2002-08-01 주식회사 하이닉스반도체 코드 분할 다중 접속방식의 이동통신 기지국 시스템
IL146875A0 (en) * 2000-03-08 2002-08-14 Advanced Risc Mach Ltd Viterbi decoding with path metric update implemented in the order of bit-slices
US20020031195A1 (en) * 2000-09-08 2002-03-14 Hooman Honary Method and apparatus for constellation decoder
CN100438389C (zh) * 2001-06-21 2008-11-26 皇家菲利浦电子有限公司 无线电通信网络中的mimo传输***
JP3612563B2 (ja) * 2001-09-07 2005-01-19 独立行政法人情報通信研究機構 マルチモードブロック符号化変調復調方法
US7321618B2 (en) * 2002-04-09 2008-01-22 Texas Instruments Incorporated PCM upstream data transmission server
US7046747B2 (en) * 2002-04-16 2006-05-16 Intel Corporation Viterbi decoder and decoding method using rescaled branch metrics in add-compare-select operations
CN100399706C (zh) * 2002-08-14 2008-07-02 联发科技股份有限公司 部分响应最大可能性信道的维特比译码器
US7295622B2 (en) * 2003-05-09 2007-11-13 Texas Instruments Incorporated System and method for information decoding using batched processing of independent parameters
US7117427B2 (en) * 2003-07-09 2006-10-03 Texas Instruments Incorporated Reduced complexity decoding for trellis coded modulation
EP1511178A1 (en) * 2003-09-01 2005-03-02 Alcatel A method of decoding a data word
US7434148B2 (en) * 2004-12-30 2008-10-07 Freescale Semiconductor, Inc. Track buffer in a parallel decoder
JP2007300400A (ja) * 2006-04-28 2007-11-15 Matsushita Electric Ind Co Ltd 送信回路、送信方法、及びそれを用いた通信機器
US8165224B2 (en) * 2007-03-22 2012-04-24 Research In Motion Limited Device and method for improved lost frame concealment
US8856630B2 (en) * 2008-06-10 2014-10-07 Telefonaktiebolaget L M Ericsson (Publ) Continuous parallel Viterbi decoder
US8477879B2 (en) * 2009-12-23 2013-07-02 Texas Instruments Incorporated System and method for bi-phase modulation decoding
RU2421900C1 (ru) 2010-02-27 2011-06-20 Тимур Георгиевич Келин Многоканальный последовательный декодер витерби

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709377A (en) * 1985-03-13 1987-11-24 Paradyne Viterbi decoder for wireline modems
JPH0626346B2 (ja) * 1990-04-26 1994-04-06 郵政省通信総合研究所長 畳込み符号化直交ｆｍ・ビタビ受信方式
US5659569A (en) * 1990-06-25 1997-08-19 Qualcomm Incorporated Data burst randomizer
US5511073A (en) * 1990-06-25 1996-04-23 Qualcomm Incorporated Method and apparatus for the formatting of data for transmission
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
JP2554219B2 (ja) * 1991-11-26 1996-11-13 日本電信電話株式会社 ディジタル信号の重畳伝送方式
US5559757A (en) * 1991-12-18 1996-09-24 Catipovic; Josko A. Spatial diversity processing for underwater acoustic telemetry
SE470371B (sv) * 1992-06-23 1994-01-31 Ericsson Telefon Ab L M Sätt och anordning vid digital signalöverföring att hos en mottagare estimera överförda symboler
US5396516A (en) * 1993-02-22 1995-03-07 Qualcomm Incorporated Method and system for the dynamic modification of control paremeters in a transmitter power control system
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
MY112371A (en) * 1993-07-20 2001-05-31 Qualcomm Inc System and method for orthogonal spread spectrum sequence generation in variable data rate systems
ZA947317B (en) * 1993-09-24 1995-05-10 Qualcomm Inc Multirate serial viterbi decoder for code division multiple access system applications
AU702655B2 (en) * 1993-11-01 1999-02-25 Qualcomm Incorporated Method and apparatus for the transmission of variable rate digital data
US5454009A (en) * 1994-01-13 1995-09-26 Scientific-Atlanta, Inc. Method and apparatus for providing energy dispersal using frequency diversity in a satellite communications system
US5465269A (en) * 1994-02-02 1995-11-07 Motorola, Inc. Method and apparatus for encoding and decoding a supplementary signal
JP3366128B2 (ja) * 1994-09-30 2003-01-14 富士通株式会社 ビタビ復号方式を用いた多値符号化信号の復号器
US5528593A (en) * 1994-09-30 1996-06-18 Qualcomm Incorporated Method and apparatus for controlling power in a variable rate communication system
US5619524A (en) * 1994-10-04 1997-04-08 Motorola, Inc. Method and apparatus for coherent communication reception in a spread-spectrum communication system
JP2701761B2 (ja) * 1994-11-02 1998-01-21 日本電気株式会社 送信ビットレート判別方法及び装置
JP2605641B2 (ja) * 1994-11-14 1997-04-30 日本電気株式会社 可変ビットレート判別方法及び装置
US5497401A (en) * 1994-11-18 1996-03-05 Thomson Consumer Electronics, Inc. Branch metric computer for a Viterbi decoder of a punctured and pragmatic trellis code convolutional decoder suitable for use in a multi-channel receiver of satellite, terrestrial and cable transmitted FEC compressed-digital television data
JP3169522B2 (ja) * 1995-01-19 2001-05-28 沖電気工業株式会社 データ受信装置
TW347616B (en) * 1995-03-31 1998-12-11 Qualcomm Inc Method and apparatus for performing fast power control in a mobile communication system a method and apparatus for controlling transmission power in a mobile communication system is disclosed.

Also Published As

Publication number Publication date
HK1041387A1 (en) 2002-07-05
DK1161019T3 (da) 2004-08-16
EP1161019A2 (en) 2001-12-05
EP1895671A2 (en) 2008-03-05
HK1041385B (zh) 2004-10-08
EP1696584A1 (en) 2006-08-30
JP3988956B2 (ja) 2007-10-10
EP1895671B1 (en) 2012-04-25
EP1161019B1 (en) 2004-05-19
US6005898A (en) 1999-12-21
EP1161017B1 (en) 2004-05-26
ES2172486T3 (es) 2004-12-16
DK1439640T3 (da) 2006-10-30
WO1998040971A1 (en) 1998-09-17
ES2172487T3 (es) 2004-12-16
ES2146560T3 (es) 2003-03-16
CN1109414C (zh) 2003-05-21
EP1161018A2 (en) 2001-12-05
ATE382208T1 (de) 2008-01-15
DE69825328D1 (de) 2004-09-02
DE69825328T2 (de) 2005-08-18
DE69824051T2 (de) 2004-10-21
DE966796T1 (de) 2000-10-05
HK1041386A1 (en) 2002-07-05
DE69807850D1 (de) 2002-10-17
DE69838922T2 (de) 2008-12-18
HK1041385A1 (en) 2002-07-05
DE69824208D1 (de) 2004-07-01
HK1094840A1 (en) 2007-04-13
EP2259440B1 (en) 2012-05-23
HK1041386B (zh) 2005-02-04
EP0966796B1 (en) 2002-09-11
DK1696584T3 (da) 2008-03-17
EP1696584B1 (en) 2007-12-26
EP0966796A1 (en) 1999-12-29
DE69835177T2 (de) 2007-06-14
ATE224118T1 (de) 2002-09-15
HK1067253A1 (en) 2005-04-01
EP1439640A2 (en) 2004-07-21
DE69807850T2 (de) 2003-05-28
DK1161018T3 (da) 2004-11-29
EP1439640B1 (en) 2006-07-05
CN1442957A (zh) 2003-09-17
ATE267483T1 (de) 2004-06-15
ES2300083T3 (es) 2008-06-01
EP1895671A3 (en) 2008-04-30
EP1161018B1 (en) 2004-07-28
EP2259440A1 (en) 2010-12-08
ES2386278T3 (es) 2012-08-16
CN1278498C (zh) 2006-10-04
ES2172488T1 (es) 2002-10-01
DE69824051D1 (de) 2004-06-24
DE69838922D1 (de) 2008-02-07
HK1114509A1 (en) 2008-10-31
DE69824208T2 (de) 2005-06-23
US6256339B1 (en) 2001-07-03
CN1250558A (zh) 2000-04-12
ES2172487T1 (es) 2002-10-01
ES2146560T1 (es) 2000-08-16
ATE268074T1 (de) 2004-06-15
HK1041387B (zh) 2004-12-10
ATE555552T1 (de) 2012-05-15
ATE272271T1 (de) 2004-08-15
DK1161017T3 (da) 2004-08-16
ES2172488T3 (es) 2004-12-01
DE69835177D1 (de) 2006-08-17
ES2268532T3 (es) 2007-03-16
ES2387708T3 (es) 2012-09-28
EP1161017A3 (en) 2002-10-30
JP2001514829A (ja) 2001-09-11
EP1161018A3 (en) 2002-10-30
DK2259440T3 (da) 2012-08-20
EP1161017A2 (en) 2001-12-05
EP1439640A3 (en) 2005-05-11
HK1024357A1 (en) 2000-10-27
ATE332592T1 (de) 2006-07-15
EP1161019A3 (en) 2002-10-30

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