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BR0215819A - Arquitetura de armazenamento temporário centralizado para um receptor de multiplexação por divisão de frequência ortogonal (ofdm) - Google Patents

Arquitetura de armazenamento temporário centralizado para um receptor de multiplexação por divisão de frequência ortogonal (ofdm)

Info

Publication number
BR0215819A
BR0215819A BR0215819-1A BR0215819A BR0215819A BR 0215819 A BR0215819 A BR 0215819A BR 0215819 A BR0215819 A BR 0215819A BR 0215819 A BR0215819 A BR 0215819A
Authority
BR
Brazil
Prior art keywords
temporary storage
ofdm
receiver
frequency division
centralized
Prior art date
Application number
BR0215819-1A
Other languages
English (en)
Inventor
Maxim Borisovic Belotserkovsky
Vincent Demoulin
Louis Robert Litwin Jr
Original Assignee
Thomson Licensing Sa
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 Thomson Licensing Sa filed Critical Thomson Licensing Sa
Publication of BR0215819A publication Critical patent/BR0215819A/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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • 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
    • H04L27/01—Equalisers
    • 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
    • H04L27/2649—Demodulators
    • H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation
    • 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
    • H04L27/2659—Coarse or integer frequency offset determination and 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
    • H04L27/266—Fine or fractional frequency offset determination and 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
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

"ARQUITETURA DE ARMAZENAMENTO TEMPORáRIO CENTRALIZADO PARA UM RECEPTOR DE MULTIPLEXAçãO POR DIVISãO DE FREQuêNCIA ORTOGONAL (OFDM)". As modalidades descritas se referem a uma arquitetura de armazenamento centralizado (60) para um receptor OFDM. Nessa arquitetura, um armazenamento temporário central (68) é compartilhado pelos blocos ou módulos funcionais principais (70 - 90) do receptor OFDM. Uma máquina de estado (62) permite o acesso ao armazenamento temporário (68) pelos blocos funcionais (70-90) para manter a coerência do armazenamento temporário.
BR0215819-1A 2002-07-31 2002-07-31 Arquitetura de armazenamento temporário centralizado para um receptor de multiplexação por divisão de frequência ortogonal (ofdm) BR0215819A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2002/024188 WO2004013999A1 (en) 2002-07-31 2002-07-31 Centralized buffer architecture for an orthogonal frequency division multiplexing (ofdm) receiver

Publications (1)

Publication Number Publication Date
BR0215819A true BR0215819A (pt) 2005-06-07

Family

ID=31493890

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0215819-1A BR0215819A (pt) 2002-07-31 2002-07-31 Arquitetura de armazenamento temporário centralizado para um receptor de multiplexação por divisão de frequência ortogonal (ofdm)

Country Status (9)

Country Link
US (1) US7697410B2 (pt)
EP (1) EP1525688A4 (pt)
JP (1) JP2005535223A (pt)
KR (1) KR100938929B1 (pt)
CN (1) CN100583700C (pt)
AU (1) AU2002322795A1 (pt)
BR (1) BR0215819A (pt)
MX (1) MXPA05001192A (pt)
WO (1) WO2004013999A1 (pt)

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KR100720546B1 (ko) * 2004-12-17 2007-05-22 엘지전자 주식회사 디지털 수신기의 동기 포착 장치 및 방법
US8229014B2 (en) * 2005-03-11 2012-07-24 Qualcomm Incorporated Fast fourier transform processing in an OFDM system
US7684312B2 (en) * 2006-01-10 2010-03-23 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for fast FFT processing of paging information
JP2007202078A (ja) * 2006-01-30 2007-08-09 Sharp Corp Ｏｆｄｍ復調装置、ｏｆｄｍ復調装置の動作方法、プログラム及びコンピュータ読み取り可能な記録媒体
US8543629B2 (en) 2006-04-04 2013-09-24 Qualcomm Incorporated IFFT processing in wireless communications
US8612504B2 (en) 2006-04-04 2013-12-17 Qualcomm Incorporated IFFT processing in wireless communications
US8520500B2 (en) * 2008-03-28 2013-08-27 Qualcomm Incorporated Buffered demod and demap functions
KR101007589B1 (ko) * 2008-12-19 2011-01-14 한국과학기술원 소프트웨어 기반의 ｔ―ｄｍｂ 수신장치의 심볼 디코딩 장치 및 그 동작방법
JP5454236B2 (ja) * 2010-03-05 2014-03-26 富士通株式会社 受信装置および受信方法
CN103259756B (zh) * 2013-04-19 2016-06-29 东南大学 一种应用于ofdm系统的符号定时同步和载波同步方法

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KR0157500B1 (ko) * 1994-03-25 1998-11-16 김광호 자동주파수조절방법 및 그 장치
JP3145003B2 (ja) * 1995-03-23 2001-03-12 株式会社東芝 直交周波数分割多重伝送方式とその送信装置および受信装置
GB2319935B (en) * 1996-11-29 2001-10-24 Daewoo Electronics Co Ltd Apparatus for correcting frequency offset in ofdm receiving system
EP0855657B1 (en) 1997-01-22 2007-03-14 Matsushita Electric Industrial Co., Ltd. Fast fourier transforming apparatus and method
JP3800265B2 (ja) 1997-06-16 2006-07-26 ソニー株式会社 デジタル放送受信機
JP3518266B2 (ja) * 1997-07-18 2004-04-12 富士ゼロックス株式会社 表編集装置
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Also Published As

Publication number Publication date
KR20050019938A (ko) 2005-03-03
CN1640030A (zh) 2005-07-13
AU2002322795A1 (en) 2004-02-23
JP2005535223A (ja) 2005-11-17
EP1525688A4 (en) 2010-06-23
US20050201267A1 (en) 2005-09-15
CN100583700C (zh) 2010-01-20
MXPA05001192A (es) 2005-05-16
US7697410B2 (en) 2010-04-13
KR100938929B1 (ko) 2010-01-27
WO2004013999A1 (en) 2004-02-12
EP1525688A1 (en) 2005-04-27

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 13A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2317 DE 02-06-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.