AR014568A1 - A METHOD FOR DETERMINING THE SPEED OF DATA OF SYMBOLS OF CODE TRANSMITTED IN A LINK OF A TELECOMMUNICATIONS PROVISION AND AN APPLIANCE TO CARRY OUT THE PRACTICE OF THIS METHOD - Google Patents

A METHOD FOR DETERMINING THE SPEED OF DATA OF SYMBOLS OF CODE TRANSMITTED IN A LINK OF A TELECOMMUNICATIONS PROVISION AND AN APPLIANCE TO CARRY OUT THE PRACTICE OF THIS METHOD

Info

Publication number
AR014568A1
AR014568A1 ARP990100590A ARP990100590A AR014568A1 AR 014568 A1 AR014568 A1 AR 014568A1 AR P990100590 A ARP990100590 A AR P990100590A AR P990100590 A ARP990100590 A AR P990100590A AR 014568 A1 AR014568 A1 AR 014568A1
Authority
AR
Argentina
Prior art keywords
speed
symbol
ser
data transmission
energy
Prior art date
Application number
ARP990100590A
Other languages
Spanish (es)
Original Assignee
Qualcomm Inc
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
Priority claimed from US09/075,406 external-priority patent/US6147964A/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of AR014568A1 publication Critical patent/AR014568A1/en

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
    • H03M13/27—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 using interleaving techniques
    • 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
    • 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
    • H03M13/31—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 combining coding for error detection or correction and efficient use of the spectrum
    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0048—Walsh
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal 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
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system

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)
  • Power Engineering (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Error Detection And Correction (AREA)

Abstract

Un método para la determinacion de la velocidad en un sistema de comunicacion que utiliza los codigos de cobertura de Walsh dependientes de lavelocidad ortogonales. Los codigos de Walsh dependientes de la velocidad ortogonales se utilizan para cubrir los símbolos de codigo repetidos antes dela transmision por un enlace de comunicacion. Los codigos de Walsh comprenden los codigos binarios ortogonales que aumentan potenciándose al cuadrado porcada velocidad de transmision de datos en el sistema. Los símbolos de codigo se repiten y luego se recuperan a la velocidad de símbolo utilizando los codigosde Walsh ortogonales de la invencion. Los bloques de velocidad de error de símbolo se utilizan para generar las medicionesSER dependientes de lavelocidad para cada una de las velocidades candidatas. Los estimadores SER (230, 232, 243, 236) asociados a los combinadores de soft (204, 206, 208, 210)que usan las hipotesis de velocidad de transmision de datos incorrectas producen velocidades de error de símbolo altas con respecto a la velocidad deerror de símbolo que produce el estimador SER (230, 232, 243, 236) asociado con el combinador de soft (204, 206, 208, 210) que utiliza la hipotesis develocidad correcta. En otra forma de realizacion, los calculadores de medicion de energía (250, 252, 254, 256) se sustituyen por los estimadores de SER (230,232, 243, 236) y utilizados para generar las mediciones de energía recodificadas dependientes de la velocidad para cada velocidad de transmisionde datos candidata. Las mediciones de energía producen un estimado de la energía de símbolo y la energía de símbolo se utiliza como un indicador develocidad de transmision de datos. La invencion también propone a un aparato para llevar a la practica dicho método.A method for determining speed in a communication system that uses orthogonal speed-dependent Walsh coverage codes. The orthogonal speed-dependent Walsh codes are used to cover the repeated code symbols before transmission over a communication link. Walsh codes comprise orthogonal binary codes that increase by being squared due to the speed of data transmission in the system. The code symbols are repeated and then retrieved at the symbol rate using the orthogonal Walsh codes of the invention. The symbol error speed blocks are used to generate the speed-dependent SER measurements for each of the candidate speeds. SER estimators (230, 232, 243, 236) associated with soft combiners (204, 206, 208, 210) that use incorrect data transmission rate hypotheses produce high symbol error rates with respect to speed Symbol error produced by the SER estimator (230, 232, 243, 236) associated with the soft combiner (204, 206, 208, 210) that uses the correct velocity hypothesis. In another embodiment, the energy measurement calculators (250, 252, 254, 256) are replaced by the SER estimators (230,232, 243, 236) and used to generate the velocity-dependent recoded energy measurements for each Candidate data transmission rate. Energy measurements produce an estimate of symbol energy and symbol energy is used as an indicator of data transmission speed. The invention also proposes an apparatus for practicing said method.

ARP990100590A 1998-02-13 1999-02-12 A METHOD FOR DETERMINING THE SPEED OF DATA OF SYMBOLS OF CODE TRANSMITTED IN A LINK OF A TELECOMMUNICATIONS PROVISION AND AN APPLIANCE TO CARRY OUT THE PRACTICE OF THIS METHOD AR014568A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7473298P 1998-02-13 1998-02-13
US09/075,406 US6147964A (en) 1998-05-07 1998-05-07 Method and apparatus for performing rate determination using orthogonal rate-dependent walsh covering codes

Publications (1)

Publication Number Publication Date
AR014568A1 true AR014568A1 (en) 2001-02-28

Family

ID=26756001

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP990100590A AR014568A1 (en) 1998-02-13 1999-02-12 A METHOD FOR DETERMINING THE SPEED OF DATA OF SYMBOLS OF CODE TRANSMITTED IN A LINK OF A TELECOMMUNICATIONS PROVISION AND AN APPLIANCE TO CARRY OUT THE PRACTICE OF THIS METHOD

Country Status (12)

Country Link
EP (1) EP1055291A1 (en)
JP (1) JP2002503909A (en)
KR (1) KR20010040855A (en)
AR (1) AR014568A1 (en)
AU (1) AU2655899A (en)
BR (1) BR9907841A (en)
CA (1) CA2319559A1 (en)
FI (1) FI20001743A (en)
ID (1) ID26786A (en)
IL (1) IL137789A0 (en)
TR (1) TR200002347T2 (en)
WO (1) WO1999041847A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1357669A4 (en) * 2001-01-31 2005-08-24 Matsushita Electric Ind Co Ltd Decoding device and decoding method
US7957263B2 (en) * 2003-09-08 2011-06-07 Qualcomm Corporation Method and apparatus for acknowledging reverse link transmissions in a communications system
EP1605597A1 (en) 2004-06-03 2005-12-14 STMicroelectronics N.V. Method and system for blindly detecting a shared channel out of a plurality of shared channels received in parallel
KR100859724B1 (en) * 2007-05-28 2008-09-23 한국전자통신연구원 Appratus and method for transmitting and receiving signal having variable data rate in human body communication

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU683479B2 (en) * 1993-06-18 1997-11-13 Qualcomm Incorporated Method and apparatus for determining the data rate of a received signal
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

Also Published As

Publication number Publication date
FI20001743A (en) 2000-08-03
JP2002503909A (en) 2002-02-05
CA2319559A1 (en) 1999-08-19
KR20010040855A (en) 2001-05-15
AU2655899A (en) 1999-08-30
BR9907841A (en) 2000-10-24
TR200002347T2 (en) 2001-02-21
IL137789A0 (en) 2001-10-31
WO1999041847A1 (en) 1999-08-19
EP1055291A1 (en) 2000-11-29
ID26786A (en) 2001-02-08

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