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BRPI9815807B8 - estrutura de quadros e sincronização de quadros para sistemas multi-portadoras - Google Patents

estrutura de quadros e sincronização de quadros para sistemas multi-portadoras

Info

Publication number
BRPI9815807B8
BRPI9815807B8 BRPI9815807A BR9815807A BRPI9815807B8 BR PI9815807 B8 BRPI9815807 B8 BR PI9815807B8 BR PI9815807 A BRPI9815807 A BR PI9815807A BR 9815807 A BR9815807 A BR 9815807A BR PI9815807 B8 BRPI9815807 B8 BR PI9815807B8
Authority
BR
Brazil
Prior art keywords
signal
frame structure
frame
symbol
reference pattern
Prior art date
Application number
BRPI9815807A
Other languages
English (en)
Other versions
BR9815807B1 (pt
BR9815807A (pt
Inventor
Albert Heuberger
Ernst Eberlein
Heinz Gerhäuser
Sabah Badri
Stefan Lipp
Stephan Buchholz
Original Assignee
Fraunhofer Ges Zur Förderung Der Angewand Ten Forschung E V
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=8166938&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI9815807(B8) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Ges Zur Förderung Der Angewand Ten Forschung E V filed Critical Fraunhofer Ges Zur Förderung Der Angewand Ten Forschung E V
Publication of BR9815807A publication Critical patent/BR9815807A/pt
Publication of BR9815807B1 publication Critical patent/BR9815807B1/pt
Publication of BRPI9815807B8 publication Critical patent/BRPI9815807B8/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Display Devices Of Pinball Game Machines (AREA)

Abstract

método e aparelho para gerar um sinal que tem uma estrutura de quadros, e método e aparelho para sincronização de quadros". método para gerar um sinal tendo uma estrutura de quadros, compreendendo cada quadro da estrutura de quadros pelo menos um símbolo útil (12), um intervalo de guarda (14) associado a pelo menos um símbolo útil (12) e a um símbolo de referência (16), compreende a etapa de realizar uma modulação de amplitude de uma seqüência de bits de tal forma que o envelope da seqüência de bits modulada em amplitude defina um padrão de referência do símbolo de referência (16). método para sincronização de quadros de um sinal, tendo uma estrutura de quadros, compreende as etapas de receber o sinal, converter para baixo o sinal recebido, realizar (164) uma demodulação de amplitude do sinal convertido para baixo, a fim de gerar um envelope, correlacionar (166) o envelope com um padrão de referência predeterminado a fim de detectar um padrão de referência de sinal do símbolo de referência (16) no sinal e realizar a sincronização de quadros, com base na detecção do padrão de referência de sinal.
BRPI9815807A 1998-04-14 1998-04-14 estrutura de quadros e sincronização de quadros para sistemas multi-portadoras BRPI9815807B8 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1998/002169 WO1999053665A1 (en) 1998-04-14 1998-04-14 Frame structure and frame synchronization for multicarrier systems

Publications (3)

Publication Number Publication Date
BR9815807A BR9815807A (pt) 2003-01-07
BR9815807B1 BR9815807B1 (pt) 2012-01-24
BRPI9815807B8 true BRPI9815807B8 (pt) 2016-05-31

Family

ID=8166938

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9815807A BRPI9815807B8 (pt) 1998-04-14 1998-04-14 estrutura de quadros e sincronização de quadros para sistemas multi-portadoras

Country Status (18)

Country Link
US (1) US6993084B1 (pt)
EP (1) EP1072135B1 (pt)
JP (1) JP3449984B2 (pt)
KR (1) KR100377255B1 (pt)
CN (1) CN1160921C (pt)
AP (1) AP2000001940A0 (pt)
AT (1) ATE210908T1 (pt)
AU (1) AU749912B2 (pt)
BR (1) BRPI9815807B8 (pt)
CA (1) CA2328174C (pt)
DE (1) DE69802970T2 (pt)
DK (1) DK1072135T3 (pt)
EA (1) EA002611B1 (pt)
ES (1) ES2169911T3 (pt)
SA (1) SA98190439A (pt)
TW (1) TW412901B (pt)
WO (1) WO1999053665A1 (pt)
ZA (1) ZA983644B (pt)

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KR101815942B1 (ko) * 2011-12-02 2018-01-09 삼성전자주식회사 엔벨로프를 검출하는 방법 및 장치
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Also Published As

Publication number Publication date
KR20010042706A (ko) 2001-05-25
CN1160921C (zh) 2004-08-04
DE69802970T2 (de) 2002-08-01
ATE210908T1 (de) 2001-12-15
EP1072135B1 (en) 2001-12-12
AU7216298A (en) 1999-11-01
AP2000001940A0 (en) 2000-12-31
CA2328174A1 (en) 1999-10-21
WO1999053665A8 (en) 2000-11-16
EA200001064A1 (ru) 2001-06-25
CN1292964A (zh) 2001-04-25
DK1072135T3 (da) 2002-04-08
EA002611B1 (ru) 2002-06-27
WO1999053665A1 (en) 1999-10-21
KR100377255B1 (ko) 2003-03-26
BR9815807B1 (pt) 2012-01-24
ES2169911T3 (es) 2002-07-16
SA98190439A (ar) 2005-12-03
TW412901B (en) 2000-11-21
CA2328174C (en) 2003-08-05
JP2002511709A (ja) 2002-04-16
BR9815807A (pt) 2003-01-07
EP1072135A1 (en) 2001-01-31
US6993084B1 (en) 2006-01-31
AU749912B2 (en) 2002-07-04
ZA983644B (en) 1998-11-04
DE69802970D1 (de) 2002-01-24
JP3449984B2 (ja) 2003-09-22

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Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 24/01/2012, OBSERVADAS AS CONDICOES LEGAIS.

B16C Correction of notification of the grant [chapter 16.3 patent gazette]

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Free format text: PATENTE EXTINTA EM 24.01.2022