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BR0013669A - Método e aparelho para detectar frames de taxa zero em um sistema de comunicações - Google Patents

Método e aparelho para detectar frames de taxa zero em um sistema de comunicações

Info

Publication number
BR0013669A
BR0013669A BR0013669-7A BR0013669A BR0013669A BR 0013669 A BR0013669 A BR 0013669A BR 0013669 A BR0013669 A BR 0013669A BR 0013669 A BR0013669 A BR 0013669A
Authority
BR
Brazil
Prior art keywords
received
frames
received frame
threshold value
communications system
Prior art date
Application number
BR0013669-7A
Other languages
English (en)
Inventor
Tao Chen
Shimman Patel
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
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0013669A publication Critical patent/BR0013669A/pt

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
    • H04L1/20—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
    • 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
    • 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
    • H03M13/3738—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35 with judging correct decoding
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Error Detection And Correction (AREA)

Abstract

"MéTODO E APARELHO PARA DETECTAR FRAMES DE TAXA ZERO EM UM SISTEMA DE COMUNICAçõES". Técnicas para a detecção de frames de taxa zero em uma transmissão de dados recebida. Um sinal modulado é recebido e demodulado, de acordo com um formato de demodulação particular, para gerar símbolos demodulados. Os símbolos demodulados são particionados em inúmeros frames recebidos. Para cada frame recebido, uma medição de qualidade é computada e comparada contra um valor limiar. O valor limiar é selecionado com base, em parte, nas medições de qualidade dos frames recebidos. Com base no resultado da comparação, o frame recebido é indicado como sendo ou transmitido e recebido com erro (isto é, apagado ou ruim) ou não transmitido absolutamente (isto é, de taxa zero ou vazio) . A medição de qualidade pode se relacionar com uma energia de um frame recebido, com uma distância entre um frame recebido e uma palavra código correspondendo ao frame recebido ou com outras medições. O valor limiar pode ser selecionado com base nas medições de qualidade computadas para frames decodificados ou frames recebidos identificados como bons, e pode ser ajustado dinamicamente com base em informação corrente disponível no receptor. O método é vantajosamente usado em um sistema de comunicações CDMA (100).
BR0013669-7A 1999-09-01 2000-08-31 Método e aparelho para detectar frames de taxa zero em um sistema de comunicações BR0013669A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/388,029 US6208699B1 (en) 1999-09-01 1999-09-01 Method and apparatus for detecting zero rate frames in a communications system
PCT/US2000/023926 WO2001017158A1 (en) 1999-09-01 2000-08-31 Method and apparatus for detecting zero rate frames in a communications system

Publications (1)

Publication Number Publication Date
BR0013669A true BR0013669A (pt) 2002-07-02

Family

ID=23532338

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0013669-7A BR0013669A (pt) 1999-09-01 2000-08-31 Método e aparelho para detectar frames de taxa zero em um sistema de comunicações

Country Status (18)

Country Link
US (2) US6208699B1 (pt)
EP (1) EP1208665B1 (pt)
JP (1) JP4522634B2 (pt)
KR (1) KR100712748B1 (pt)
CN (1) CN1144414C (pt)
AT (1) ATE456210T1 (pt)
AU (1) AU770453B2 (pt)
BR (1) BR0013669A (pt)
CA (1) CA2381555A1 (pt)
DE (1) DE60043732D1 (pt)
HK (1) HK1048572B (pt)
IL (3) IL148069A0 (pt)
MX (1) MXPA02001890A (pt)
NO (1) NO20021002L (pt)
RU (1) RU2252487C2 (pt)
TW (1) TW527801B (pt)
UA (1) UA67857C2 (pt)
WO (1) WO2001017158A1 (pt)

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Also Published As

Publication number Publication date
US6208699B1 (en) 2001-03-27
KR20020048396A (ko) 2002-06-22
UA67857C2 (uk) 2004-07-15
CN1371562A (zh) 2002-09-25
NO20021002L (no) 2002-03-15
RU2252487C2 (ru) 2005-05-20
WO2001017158A1 (en) 2001-03-08
AU6948500A (en) 2001-03-26
IL148069A0 (en) 2002-09-12
TW527801B (en) 2003-04-11
MXPA02001890A (es) 2002-10-31
ATE456210T1 (de) 2010-02-15
EP1208665A1 (en) 2002-05-29
US20010000221A1 (en) 2001-04-12
IL179415A (en) 2010-12-30
JP2004502323A (ja) 2004-01-22
JP4522634B2 (ja) 2010-08-11
US6356601B1 (en) 2002-03-12
IL179415A0 (en) 2007-05-15
HK1048572A1 (en) 2003-04-04
DE60043732D1 (de) 2010-03-11
AU770453B2 (en) 2004-02-19
KR100712748B1 (ko) 2007-05-02
CA2381555A1 (en) 2001-03-08
EP1208665B1 (en) 2010-01-20
CN1144414C (zh) 2004-03-31
NO20021002D0 (no) 2002-02-28
HK1048572B (zh) 2004-12-31
IL148069A (en) 2007-06-17

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