CA2305168C - Optimized synchronization preamble structure - Google Patents

Optimized synchronization preamble structure Download PDF

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Publication number
CA2305168C
CA2305168C CA2305168A CA2305168A CA2305168C CA 2305168 C CA2305168 C CA 2305168C CA 2305168 A CA2305168 A CA 2305168A CA 2305168 A CA2305168 A CA 2305168A CA 2305168 C CA2305168 C CA 2305168C
Authority
CA
Canada
Prior art keywords
synchronization
sequence
complex symbols
field
time domain
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
CA2305168A
Other languages
English (en)
French (fr)
Other versions
CA2305168A1 (en
Inventor
Ralf Bohnke
Thomas Dolle
Tino Konschak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Deutschland GmbH
Original Assignee
Sony International Europe GmbH
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 Sony International Europe GmbH filed Critical Sony International Europe GmbH
Priority to CA002598677A priority Critical patent/CA2598677A1/en
Publication of CA2305168A1 publication Critical patent/CA2305168A1/en
Application granted granted Critical
Publication of CA2305168C publication Critical patent/CA2305168C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H04L27/2602—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
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
    • 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
    • H04L27/2614—Peak power aspects
    • H04L27/262—Reduction thereof by selection of pilot symbols
    • 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
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
    • 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
    • H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
    • H04L27/2692—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation with preamble design, i.e. with negotiation of the synchronisation sequence with transmitter or sequence linked to the algorithm used at the receiver
    • 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
    • H04L27/2662—Symbol 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)
  • Synchronisation In Digital Transmission Systems (AREA)
CA2305168A 1999-04-23 2000-04-14 Optimized synchronization preamble structure Expired - Lifetime CA2305168C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002598677A CA2598677A1 (en) 1999-04-23 2000-04-14 Optimized synchronization preamble structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP99108083.9 1999-04-23
EP99108083A EP1049302B1 (en) 1999-04-23 1999-04-23 Synchronization preamble in an OFDM system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002598677A Division CA2598677A1 (en) 1999-04-23 2000-04-14 Optimized synchronization preamble structure

Publications (2)

Publication Number Publication Date
CA2305168A1 CA2305168A1 (en) 2000-10-23
CA2305168C true CA2305168C (en) 2011-11-29

Family

ID=8238035

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2305168A Expired - Lifetime CA2305168C (en) 1999-04-23 2000-04-14 Optimized synchronization preamble structure

Country Status (8)

Country Link
US (1) US7145955B1 (OSRAM)
EP (2) EP1505787B1 (OSRAM)
JP (2) JP4563547B2 (OSRAM)
KR (1) KR100769022B1 (OSRAM)
CN (1) CN1197312C (OSRAM)
CA (1) CA2305168C (OSRAM)
DE (1) DE69932150T2 (OSRAM)
ES (2) ES2270261T3 (OSRAM)

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JP3636145B2 (ja) * 2001-06-15 2005-04-06 ソニー株式会社 復調タイミング生成回路および復調装置
EP1274209A1 (en) * 2001-07-04 2003-01-08 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Frequency correction for a multicarrier system
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US7548506B2 (en) * 2001-10-17 2009-06-16 Nortel Networks Limited System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design
ATE492106T1 (de) * 2002-07-16 2011-01-15 Ihp Gmbh Verfahren und gerät zur rahmendetektion und synchronisierung
US20040066740A1 (en) * 2002-09-30 2004-04-08 Samsung Electronics Co., Ltd. Apparatus and method for generating preamble sequence in a OFDM communication system
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US7116632B2 (en) * 2003-06-05 2006-10-03 Meshnetworks, Inc. System and method for determining synchronization point in OFDM modems for accurate time of flight measurement
DE60316202T2 (de) * 2003-10-03 2008-05-29 Nokia Corp. Verfahren, system und empfänger zum empfangen einer mehrträger-übertragung
CN102752096A (zh) * 2004-01-28 2012-10-24 高通股份有限公司 Ofdm接收机中的定时估计
US8724447B2 (en) 2004-01-28 2014-05-13 Qualcomm Incorporated Timing estimation in an OFDM receiver
US8433005B2 (en) 2004-01-28 2013-04-30 Qualcomm Incorporated Frame synchronization and initial symbol timing acquisition system and method
KR100804667B1 (ko) 2004-03-09 2008-02-20 포스데이타 주식회사 다중-반송파 통신 시스템에서의 랜덤 억세스 방법 및 장치
EP1589689B1 (en) * 2004-04-21 2008-02-20 Sony Deutschland GmbH Frame synchronisation scheme with interference reduction
US20050254559A1 (en) * 2004-05-11 2005-11-17 Wen-Sheng Hou Packet detection
EP2993851B1 (en) * 2004-06-24 2019-04-24 Apple Inc. Preambles in ofdma system
KR100749446B1 (ko) 2004-11-30 2007-08-14 한국전자통신연구원 직교주파수 분할다중화 시스템에서 초기 동기 이전의 자동이득조절 방법 및 장치
KR100702456B1 (ko) * 2004-12-10 2007-04-03 한국전자통신연구원 심벌 동기 검출 방법 및 그 장치
KR100729726B1 (ko) 2005-09-14 2007-06-18 한국전자통신연구원 직교 주파수 분할 다중화 방식의 통신 시스템의 타이밍획득 및 반송파 주파수 오차 추정 장치 및 방법
EP1838008A1 (en) * 2006-03-23 2007-09-26 Sony Deutschland Gmbh Preamble for synchronization
CN101083645B (zh) * 2006-06-01 2010-04-07 电子科技大学 一种低复杂度ofdm快速同步的方法
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JP5153523B2 (ja) * 2008-09-01 2013-02-27 株式会社日立製作所 無線基地局装置および無線移動局装置
US8416675B2 (en) * 2008-09-30 2013-04-09 Intel Corporation Tone reservation techniques for reducing peak-to-average power ratios
US8798096B2 (en) * 2009-12-18 2014-08-05 Electronics And Telecommunications Research Institute Method for configuring preamble for communication system, preambler, and apparatus for generating packet using the same
US9178745B2 (en) 2011-02-04 2015-11-03 Marvell World Trade Ltd. Control mode PHY for WLAN
KR102036296B1 (ko) 2011-02-04 2019-10-24 마벨 월드 트레이드 리미티드 Wlan용 제어 모드 phy
CN105229950B (zh) * 2013-04-15 2018-07-06 索尼公司 接收装置、接收方法
KR102583779B1 (ko) 2013-09-10 2023-10-04 마벨 아시아 피티이 엘티디. 옥외 wlan용 확장 보호 구간
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Also Published As

Publication number Publication date
KR100769022B1 (ko) 2007-10-22
CA2305168A1 (en) 2000-10-23
EP1049302A1 (en) 2000-11-02
US7145955B1 (en) 2006-12-05
DE69932150T2 (de) 2006-11-09
KR20000077075A (ko) 2000-12-26
ES2270261T3 (es) 2007-04-01
CN1272014A (zh) 2000-11-01
EP1505787B1 (en) 2006-10-18
DE69932150D1 (de) 2006-08-10
EP1505787A2 (en) 2005-02-09
EP1505787A3 (en) 2005-02-23
ES2262266T3 (es) 2006-11-16
JP4435239B2 (ja) 2010-03-17
EP1049302B1 (en) 2006-06-28
CN1197312C (zh) 2005-04-13
JP2008136253A (ja) 2008-06-12
JP4563547B2 (ja) 2010-10-13
JP2000341244A (ja) 2000-12-08

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Effective date: 20200414