BR9811429A - Processo para retransmitir um bloco de informação que foi transmitido previamente usando um primeiro tipo de modulação, um primeiro tipo de codificação e um primeiro formato de transmissão, e, unidade transceptora - Google Patents

Processo para retransmitir um bloco de informação que foi transmitido previamente usando um primeiro tipo de modulação, um primeiro tipo de codificação e um primeiro formato de transmissão, e, unidade transceptora

Info

Publication number
BR9811429A
BR9811429A BR9811429-8A BR9811429A BR9811429A BR 9811429 A BR9811429 A BR 9811429A BR 9811429 A BR9811429 A BR 9811429A BR 9811429 A BR9811429 A BR 9811429A
Authority
BR
Brazil
Prior art keywords
type
modulation
information
previously transmitted
retransmitting
Prior art date
Application number
BR9811429-8A
Other languages
English (en)
Inventor
Peter Scramm
Hakan Olofsson
Henrik Andreasson
Original Assignee
Ericsson Telefon Ab L M
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25444990&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9811429(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BR9811429A publication Critical patent/BR9811429A/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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • 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
    • H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1893—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2071—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the carrier phase, e.g. systems with differential coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Quality & Reliability (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

''PROCESSO PARA RETRANSMITIR UM BLOCO DE INFORMAçãO QUE FOI TRANSMITIDO PREVIAMENTE USANDO UM PRIMEIRO TIPO DE MODULAçãO, UM PRIMEIRO TIPO DE CODIFICAçãO E UM PRIMEIRO FORMATO DE TRANSMISSãO, E, UNIDADE TRANSCEPTORA" Um sistema de comunicação suporta múltiplos esquemas de modulação/codificação. Quando a qualidade de conexão cai abaixo de um limiar aceitável, técnicas ARQ usam um esquema alternativo de modulação/codificação que é mais resistente a ruído e/ou interferência, Segmentação flexível e mapeamento de blocos de informação são suportados.
BR9811429-8A 1997-08-29 1998-08-25 Processo para retransmitir um bloco de informação que foi transmitido previamente usando um primeiro tipo de modulação, um primeiro tipo de codificação e um primeiro formato de transmissão, e, unidade transceptora BR9811429A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/921,147 US6208663B1 (en) 1997-08-29 1997-08-29 Method and system for block ARQ with reselection of FEC coding and/or modulation
PCT/SE1998/001516 WO1999012303A1 (en) 1997-08-29 1998-08-25 Method and system for block arq with reselection of fec coding and/or modulation

Publications (1)

Publication Number Publication Date
BR9811429A true BR9811429A (pt) 2000-08-22

Family

ID=25444990

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9811429-8A BR9811429A (pt) 1997-08-29 1998-08-25 Processo para retransmitir um bloco de informação que foi transmitido previamente usando um primeiro tipo de modulação, um primeiro tipo de codificação e um primeiro formato de transmissão, e, unidade transceptora

Country Status (12)

Country Link
US (1) US6208663B1 (pt)
EP (2) EP2288067A3 (pt)
KR (1) KR100528419B1 (pt)
CN (1) CN1135772C (pt)
AU (1) AU751651B2 (pt)
BR (1) BR9811429A (pt)
CA (1) CA2301945C (pt)
ES (1) ES2383665T3 (pt)
HK (1) HK1033515A1 (pt)
MY (1) MY119573A (pt)
TW (1) TW390076B (pt)
WO (1) WO1999012303A1 (pt)

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AU751651B2 (en) 2002-08-22
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