BR9804020A - Método para conversão de uma taxa de dados de sinal e um transmissor. - Google Patents

Método para conversão de uma taxa de dados de sinal e um transmissor.

Info

Publication number
BR9804020A
BR9804020A BR9804020-0A BR9804020A BR9804020A BR 9804020 A BR9804020 A BR 9804020A BR 9804020 A BR9804020 A BR 9804020A BR 9804020 A BR9804020 A BR 9804020A
Authority
BR
Brazil
Prior art keywords
data rate
symbols
block
transmitter
signal
Prior art date
Application number
BR9804020-0A
Other languages
English (en)
Inventor
Kari Pehkonen
Original Assignee
Nokia Mobile Phones Ltd
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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Publication of BR9804020A publication Critical patent/BR9804020A/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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • 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
    • H04L1/0067—Rate matching
    • H04L1/0068—Rate matching by puncturing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/22—Time-division multiplex systems in which the sources have different rates or 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
    • H04L1/0001—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
    • H04L1/0013—Rate matching, e.g. puncturing or repetition of code symbols
    • 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
    • H04L1/0071—Use of interleaving
    • 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)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Communication Control (AREA)

Abstract

<B>"MéTODO PARA CONVERSãO DE UMA TAXA DE DADOS DE SINAL E UM TRANSMISSOR"<D>.A presente invenção se refere a um método para conversão de uma taxa de dados de sinal e a um transmissor em um sistema de transmissão de dados digital, o transmissor compreendendo um número de fontes de dados (200, 204) que gera um sinal (206, 210), que apresenta uma primeira taxa de dados e um codificador (214), para formar o sinal em quadros de um determinado comprimento, cujo comprimento corresponde a uma segunda taxa de dados, e um codificador (214), para agrupar o sinal (206, 210) em um primeiro bloco, cujo comprimento corresponde à primeira taxa de dados. A fim de converter a taxa de dados de um modo flexível, o transmissor compreende um codificador (214), que calcula a diferença entre o quadro e o número de símbolos no primeiro bloco, mediante subtração do comprimento do quadro do número de símbolos no primeiro bloco, o que equaliza a diferença mediante a remoção ou repetição de cada "i ésimo" símbolo no primeiro bloco, "i" sendo determinado como o maior inteiro, mais próximo ou igual, quando o número de símbolos no primeiro bloco for dividido pelo valor absoluto da diferença que foi calculada, o que atualiza o número de símbolos que não se ajustam ao quadro, mediante subtração do mesmo, do número de símbolos que foram repetidos e que formam o primeiro bloco, de modo a consistir de símbolos que não foram repetidos ou removidos.
BR9804020-0A 1997-10-24 1998-10-20 Método para conversão de uma taxa de dados de sinal e um transmissor. BR9804020A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI974052A FI104673B (fi) 1997-10-24 1997-10-24 Menetelmä signaalin datanopeuden muuntamiseksi ja lähetin

Publications (1)

Publication Number Publication Date
BR9804020A true BR9804020A (pt) 1999-12-21

Family

ID=8549799

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9804020-0A BR9804020A (pt) 1997-10-24 1998-10-20 Método para conversão de uma taxa de dados de sinal e um transmissor.

Country Status (8)

Country Link
US (1) US6332005B1 (pt)
EP (1) EP0912009A2 (pt)
JP (1) JPH11239194A (pt)
KR (1) KR19990037202A (pt)
CN (1) CN1226110A (pt)
BR (1) BR9804020A (pt)
FI (1) FI104673B (pt)
RU (1) RU98119311A (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4616997B2 (ja) * 1999-03-19 2011-01-19 ノキア シーメンス ネットワークス ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディトゲゼルシャフト インタリーブとそれに続くパンクチャリングまたはリピーティングによるレート整合とを行うデータ伝送方法
EP1091517A1 (en) * 1999-10-07 2001-04-11 Siemens Aktiengesellschaft Communication method and apparatus using punctured or repeated data
WO2001039420A1 (de) * 1999-11-25 2001-05-31 Siemens Aktiengesellschaft Verfahren zur anpassung der bitrate in einer kommunikationsvorrichtung und entsprechende kommunikationsvorrichtung
US7082565B1 (en) 1999-11-25 2006-07-25 Siemens Aktiengesellschanft Method for matching the bit rate in a communication device, and a corresponding communication device
US6690734B1 (en) * 2000-06-02 2004-02-10 Qualcomm, Incorporated Method and apparatus for puncturing code symbols in a communications system
WO2001093431A2 (en) 2000-06-02 2001-12-06 Qualcomm Inc Method and apparatus for puncturing code symbols in a communications system
KR20100046063A (ko) * 2000-06-16 2010-05-04 어웨어, 인크. Ｌｄｐｃ 코드형 변조를 위한 시스템 및 방법
US6675347B1 (en) * 2000-07-19 2004-01-06 Qualcomm, Incorporated Method and apparatus for combined puncturing and repeating of code symbols in a communications system
CN1160918C (zh) * 2000-10-21 2004-08-04 三星电子株式会社 在移动通信系统中传输分组数据
FR2849514A1 (fr) * 2002-12-26 2004-07-02 Canon Kk Code de geometrie algebrique adapte aux erreurs en rafale
US7269783B2 (en) 2003-04-30 2007-09-11 Lucent Technologies Inc. Method and apparatus for dedicated hardware and software split implementation of rate matching and de-matching
US8352843B2 (en) 2007-03-16 2013-01-08 Qualcomm Incorporated Method and apparatus for coding a communication signal

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI84866C (fi) 1990-03-12 1992-01-27 Nokia Mobile Phones Ltd Foerbaettring av en viterbi-algoritm.
US5170396A (en) 1990-06-14 1992-12-08 Introtek International, L.P. Data valid detector circuit for manchester encoded data
US5430740A (en) 1992-01-21 1995-07-04 Nokia Mobile Phones, Ltd. Indication of data blocks in a frame received by a mobile phone
US5396653A (en) 1992-06-05 1995-03-07 Nokia Mobile Phones Ltd. Cellular telephone signalling circuit operable with different cellular telephone systems
FI91579C (fi) 1992-08-20 1994-07-11 Nokia Mobile Phones Ltd Dekoodaus käyttäen lineaarista metriciä ja häiriön estimointia
WO1995012943A1 (en) 1993-11-01 1995-05-11 Qualcomm Incorporated Method and apparatus for the transmission of variable rate digital data
US5784392A (en) 1995-06-26 1998-07-21 Nokia Mobile Phones Ltd. Viterbi decoder with l=2 best decoding paths
US5796757A (en) 1995-09-15 1998-08-18 Nokia Mobile Phones Ltd. Methods and apparatus for performing rate determination with a variable rate viterbi decoder
US5883923A (en) * 1995-09-18 1999-03-16 Oki Electric Industry Co., Ltd. Data receiver with symbol rate discrimination and statistical analysis functions
US6137779A (en) * 1997-05-22 2000-10-24 Integrated Device Technology, Inc. Transmission rate calculation scheme using table-lookup

Also Published As

Publication number Publication date
US6332005B1 (en) 2001-12-18
EP0912009A2 (en) 1999-04-28
KR19990037202A (ko) 1999-05-25
RU98119311A (ru) 2000-08-20
FI104673B (fi) 2000-04-14
FI974052A (fi) 1999-04-25
FI974052A0 (fi) 1997-10-24
CN1226110A (zh) 1999-08-18
JPH11239194A (ja) 1999-08-31

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B15K Others concerning applications: alteration of classification

Ipc: H04L 1/00 (2006.01), H04J 3/22 (2006.0