ATE555552T1 - Verfahren und vorrichtung zur anpassung der datenrate in einem cdma-kommunikationssystem - Google Patents

Verfahren und vorrichtung zur anpassung der datenrate in einem cdma-kommunikationssystem

Info

Publication number
ATE555552T1
ATE555552T1 AT07025032T AT07025032T ATE555552T1 AT E555552 T1 ATE555552 T1 AT E555552T1 AT 07025032 T AT07025032 T AT 07025032T AT 07025032 T AT07025032 T AT 07025032T AT E555552 T1 ATE555552 T1 AT E555552T1
Authority
AT
Austria
Prior art keywords
data rate
kbps
adjusting
communication
communications system
Prior art date
Application number
AT07025032T
Other languages
English (en)
Inventor
John D Kaewell
Original Assignee
Interdigital Tech 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 Tech Corp filed Critical Interdigital Tech Corp
Application granted granted Critical
Publication of ATE555552T1 publication Critical patent/ATE555552T1/de

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)
  • Quality & Reliability (AREA)
  • Power Engineering (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)
  • Stereo-Broadcasting Methods (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transceivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Selective Calling Equipment (AREA)
  • Radio Relay Systems (AREA)
AT07025032T 1997-03-12 1998-03-04 Verfahren und vorrichtung zur anpassung der datenrate in einem cdma-kommunikationssystem ATE555552T1 (de)

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
ATE555552T1 true ATE555552T1 (de) 2012-05-15

Family

ID=26717094

Family Applications (7)

Application Number Title Priority Date Filing Date
AT01120761T ATE268074T1 (de) 1997-03-12 1998-03-04 Mehrkanaliger viterbi-dekoder
AT01120762T ATE272271T1 (de) 1997-03-12 1998-03-04 Mehrkanaliger dekoder für cdma-signale
AT07025032T ATE555552T1 (de) 1997-03-12 1998-03-04 Verfahren und vorrichtung zur anpassung der datenrate in einem cdma-kommunikationssystem
AT01120763T ATE267483T1 (de) 1997-03-12 1998-03-04 Mehrkanaliger viterbi-dekoder
AT04009884T ATE332592T1 (de) 1997-03-12 1998-03-04 Mehrkanaliger viterbi-dekoder
AT06012665T ATE382208T1 (de) 1997-03-12 1998-03-04 Mehrkanaliger viterbi-dekoder
AT98908938T ATE224118T1 (de) 1997-03-12 1998-03-04 Mehrkanalige kommunikationseinheit mit dekoder

Family Applications Before (2)

Application Number Title Priority Date Filing Date
AT01120761T ATE268074T1 (de) 1997-03-12 1998-03-04 Mehrkanaliger viterbi-dekoder
AT01120762T ATE272271T1 (de) 1997-03-12 1998-03-04 Mehrkanaliger dekoder für cdma-signale

Family Applications After (4)

Application Number Title Priority Date Filing Date
AT01120763T ATE267483T1 (de) 1997-03-12 1998-03-04 Mehrkanaliger viterbi-dekoder
AT04009884T ATE332592T1 (de) 1997-03-12 1998-03-04 Mehrkanaliger viterbi-dekoder
AT06012665T ATE382208T1 (de) 1997-03-12 1998-03-04 Mehrkanaliger viterbi-dekoder
AT98908938T ATE224118T1 (de) 1997-03-12 1998-03-04 Mehrkanalige kommunikationseinheit mit dekoder

Country Status (10)

Country Link
US (2) US6005898A (de)
EP (8) EP1895671B1 (de)
JP (1) JP3988956B2 (de)
CN (2) CN1109414C (de)
AT (7) ATE268074T1 (de)
DE (7) DE69825328T2 (de)
DK (6) DK2259440T3 (de)
ES (8) ES2300083T3 (de)
HK (3) HK1041386B (de)
WO (1) WO1998040971A1 (de)

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Also Published As

Publication number Publication date
ES2172487T3 (es) 2004-12-16
CN1250558A (zh) 2000-04-12
DE69825328T2 (de) 2005-08-18
US6005898A (en) 1999-12-21
DK1161019T3 (da) 2004-08-16
DE69838922T2 (de) 2008-12-18
EP1161018B1 (de) 2004-07-28
DE69807850D1 (de) 2002-10-17
EP1161018A2 (de) 2001-12-05
EP0966796A1 (de) 1999-12-29
DE69838922D1 (de) 2008-02-07
ES2146560T3 (es) 2003-03-16
HK1041387B (en) 2004-12-10
DK1439640T3 (da) 2006-10-30
CN1278498C (zh) 2006-10-04
HK1067253A1 (en) 2005-04-01
EP2259440B1 (de) 2012-05-23
HK1041386B (en) 2005-02-04
ES2146560T1 (es) 2000-08-16
EP1895671B1 (de) 2012-04-25
EP1161019A2 (de) 2001-12-05
DE966796T1 (de) 2000-10-05
DE69835177T2 (de) 2007-06-14
HK1041387A1 (en) 2002-07-05
ES2300083T3 (es) 2008-06-01
ATE272271T1 (de) 2004-08-15
DE69824051D1 (de) 2004-06-24
ATE268074T1 (de) 2004-06-15
HK1041385B (en) 2004-10-08
ES2172486T1 (es) 2002-10-01
HK1114509A1 (en) 2008-10-31
DK2259440T3 (da) 2012-08-20
ES2172488T3 (es) 2004-12-01
EP1161017A3 (de) 2002-10-30
JP3988956B2 (ja) 2007-10-10
US6256339B1 (en) 2001-07-03
DE69824208T2 (de) 2005-06-23
ATE332592T1 (de) 2006-07-15
DK1161018T3 (da) 2004-11-29
ES2386278T3 (es) 2012-08-16
ES2387708T3 (es) 2012-09-28
EP1161019B1 (de) 2004-05-19
EP1161019A3 (de) 2002-10-30
EP1696584A1 (de) 2006-08-30
CN1442957A (zh) 2003-09-17
HK1041386A1 (en) 2002-07-05
EP2259440A1 (de) 2010-12-08
EP1161017A2 (de) 2001-12-05
JP2001514829A (ja) 2001-09-11
HK1041385A1 (en) 2002-07-05
ATE224118T1 (de) 2002-09-15
ES2172487T1 (es) 2002-10-01
EP1439640A3 (de) 2005-05-11
HK1024357A1 (en) 2000-10-27
DE69824051T2 (de) 2004-10-21
ES2172488T1 (es) 2002-10-01
WO1998040971A1 (en) 1998-09-17
EP1439640A2 (de) 2004-07-21
ATE382208T1 (de) 2008-01-15
EP0966796B1 (de) 2002-09-11
ES2268532T3 (es) 2007-03-16
EP1161017B1 (de) 2004-05-26
ES2172486T3 (es) 2004-12-16
DE69824208D1 (de) 2004-07-01
DE69825328D1 (de) 2004-09-02
DE69835177D1 (de) 2006-08-17
EP1439640B1 (de) 2006-07-05
EP1696584B1 (de) 2007-12-26
EP1161018A3 (de) 2002-10-30
EP1895671A2 (de) 2008-03-05
DK1161017T3 (da) 2004-08-16
DE69807850T2 (de) 2003-05-28
EP1895671A3 (de) 2008-04-30
HK1094840A1 (en) 2007-04-13
DK1696584T3 (da) 2008-03-17
CN1109414C (zh) 2003-05-21
ATE267483T1 (de) 2004-06-15

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