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BR0107489A - Método e equipamento para suportar dados em múltiplas taxas adaptáveis (amr) em um sistema de comunicação cdma - Google Patents

Método e equipamento para suportar dados em múltiplas taxas adaptáveis (amr) em um sistema de comunicação cdma

Info

Publication number
BR0107489A
BR0107489A BR0107489-0A BR0107489A BR0107489A BR 0107489 A BR0107489 A BR 0107489A BR 0107489 A BR0107489 A BR 0107489A BR 0107489 A BR0107489 A BR 0107489A
Authority
BR
Brazil
Prior art keywords
amr
data
sid
crc
bits
Prior art date
Application number
BR0107489-0A
Other languages
English (en)
Inventor
Joseph P Odenwalder
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 BR0107489A publication Critical patent/BR0107489A/pt

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/20Arrangements for detecting or preventing errors in the information received using signal quality detector
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025Transmission of mode-switching indication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0006Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0014Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the source coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038Blind format detection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045Arrangements at the receiver end
    • H04L1/0046Code rate detection or code type detection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0061Error detection codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0075Transmission of coding parameters to receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0059Convolutional codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0067Rate matching
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0072Error control for data other than payload data, e.g. control data

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Small-Scale Networks (AREA)

Abstract

"MéTODO E EQUIPAMENTO PARA SUPORTAR DADOS EM MúLTIPLAS TAXAS ADAPTáVEIS (AMR) EM UM SISTEMA DE COMUNICAçAO CDMA". Técnicas para suportar dados codificados em múltiplas taxas adaptáveis (AMR - Adaptative MultiRate) em uma sistema de comunicação cdma2000. São definidos vários modos AMR para informações de fala (em várias taxas), descritores de silêncio (SID) (de vários tipos) e frames em branco (blanks). Os dados de fala e SID são providos em frames que se conformam a formatos de frames definidos pelo sistema cdma2000. Uma CRC é usada para cada frame AMR (por exemplo, uma CRC de 12 bits para fala e uma CRC de 8 bits para SID). Os dados AMR e bits CRC são adicionalmente codificados com um codificador convencional. A detecção de taxa cega é usada para detectar a taxa de frames dos frames AMR transmitidos. Para suportar a detecção de taxa cega, o número de bits provido ao gerador de CRC é diferente para cada taxa cega a ser detectada. Caso duas ou mais taxas cegas possuam o mesmo número de bits (tais como para SID), são providos, então, bits de formato para distinguir entre tais taxas.
BR0107489-0A 2000-01-10 2001-01-09 Método e equipamento para suportar dados em múltiplas taxas adaptáveis (amr) em um sistema de comunicação cdma BR0107489A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US17537100P 2000-01-10 2000-01-10
US09/755,843 US7010001B2 (en) 2000-01-10 2001-01-05 Method and apparatus for supporting adaptive multi-rate (AMR) data in a CDMA communication system
PCT/US2001/000706 WO2001052467A1 (en) 2000-01-10 2001-01-09 Method and apparatus for supporting adaptive multi-rate (amr) data in a cdma communication system

Publications (1)

Publication Number Publication Date
BR0107489A true BR0107489A (pt) 2004-04-27

Family

ID=26871144

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0107489-0A BR0107489A (pt) 2000-01-10 2001-01-09 Método e equipamento para suportar dados em múltiplas taxas adaptáveis (amr) em um sistema de comunicação cdma

Country Status (11)

Country Link
US (1) US7010001B2 (pt)
EP (1) EP1247371B1 (pt)
JP (1) JP2004500765A (pt)
KR (1) KR100711891B1 (pt)
CN (1) CN100342681C (pt)
AT (1) ATE408939T1 (pt)
AU (1) AU2001226377A1 (pt)
BR (1) BR0107489A (pt)
DE (1) DE60135826D1 (pt)
HK (1) HK1061764A1 (pt)
WO (1) WO2001052467A1 (pt)

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Also Published As

Publication number Publication date
KR100711891B1 (ko) 2007-04-25
US7010001B2 (en) 2006-03-07
JP2004500765A (ja) 2004-01-08
US20020006138A1 (en) 2002-01-17
CN1483257A (zh) 2004-03-17
AU2001226377A1 (en) 2001-07-24
CN100342681C (zh) 2007-10-10
DE60135826D1 (de) 2008-10-30
ATE408939T1 (de) 2008-10-15
EP1247371B1 (en) 2008-09-17
HK1061764A1 (en) 2004-09-30
WO2001052467A1 (en) 2001-07-19
EP1247371A1 (en) 2002-10-09
KR20020068394A (ko) 2002-08-27

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