SE9703629L - Förbättringar av, eller med avseende på, synkronisering - Google Patents

Förbättringar av, eller med avseende på, synkronisering

Info

Publication number
SE9703629L
SE9703629L SE9703629A SE9703629A SE9703629L SE 9703629 L SE9703629 L SE 9703629L SE 9703629 A SE9703629 A SE 9703629A SE 9703629 A SE9703629 A SE 9703629A SE 9703629 L SE9703629 L SE 9703629L
Authority
SE
Sweden
Prior art keywords
frame
ofdm
receiver
frames
information
Prior art date
Application number
SE9703629A
Other languages
English (en)
Other versions
SE9703629D0 (sv
Inventor
Lenart Olsson
Kjell-Gunnar Bahlenberg
Daniel Bengtsson
Siwert Haakansson
Anders Isaksson
Lars-Aake Isaksson
Mikael Isaksson
Magnus Johansson
Mauritz Lathi
Karin Lis-Marie Ljungren
Hans Lundberg
Tomas Nordstroem
Sven-Rune Olofsson
Tomas Stefansson
Hans Oehman
Sven Goeran Oekvist
Original Assignee
Telia Ab
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
Priority claimed from SE9700784A external-priority patent/SE9700784D0/sv
Application filed by Telia Ab filed Critical Telia Ab
Priority to SE9703629A priority Critical patent/SE9703629L/sv
Publication of SE9703629D0 publication Critical patent/SE9703629D0/sv
Priority to US09/147,230 priority patent/US6751261B1/en
Priority to EE9800374A priority patent/EE9800374A/xx
Priority to EP98908382A priority patent/EP0920758B1/en
Priority to PCT/SE1998/000353 priority patent/WO1998039872A2/en
Priority to DE69810251T priority patent/DE69810251D1/de
Publication of SE9703629L publication Critical patent/SE9703629L/sv
Priority to NO985029A priority patent/NO985029L/no

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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol 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
    • H04L27/2669—Details of algorithms characterised by the domain of operation
    • H04L27/2672—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
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2676—Blind, i.e. without using known symbols
    • H04L27/2678—Blind, i.e. without using known symbols using cyclostationarities, e.g. cyclic prefix or postfix

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
SE9703629A 1997-03-03 1997-10-06 Förbättringar av, eller med avseende på, synkronisering SE9703629L (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9703629A SE9703629L (sv) 1997-03-03 1997-10-06 Förbättringar av, eller med avseende på, synkronisering
US09/147,230 US6751261B1 (en) 1997-03-03 1998-02-27 Synchronisation
EE9800374A EE9800374A (et) 1997-03-03 1998-02-27 Sisemised või sünkroniseerimisega seotud täiustused
EP98908382A EP0920758B1 (en) 1997-03-03 1998-02-27 Improvements in, or relating to synchronisation
PCT/SE1998/000353 WO1998039872A2 (en) 1997-03-03 1998-02-27 Improvements in, or relating to synchronisation
DE69810251T DE69810251D1 (de) 1997-03-03 1998-02-27 Verbesserungen bei, oder in bezug auf synchronisation
NO985029A NO985029L (no) 1997-03-03 1998-10-29 Forbedring av, eller med hensyn til, synkronisering

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9700784A SE9700784D0 (sv) 1997-03-03 1997-03-03 Using adaptive equalizer parameters for sampling clock oscillator control in an OFDM system
SE9703629A SE9703629L (sv) 1997-03-03 1997-10-06 Förbättringar av, eller med avseende på, synkronisering

Publications (2)

Publication Number Publication Date
SE9703629D0 SE9703629D0 (sv) 1997-10-06
SE9703629L true SE9703629L (sv) 1998-09-04

Family

ID=26662921

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9703629A SE9703629L (sv) 1997-03-03 1997-10-06 Förbättringar av, eller med avseende på, synkronisering

Country Status (7)

Country Link
US (1) US6751261B1 (sv)
EP (1) EP0920758B1 (sv)
DE (1) DE69810251D1 (sv)
EE (1) EE9800374A (sv)
NO (1) NO985029L (sv)
SE (1) SE9703629L (sv)
WO (1) WO1998039872A2 (sv)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9801748L (sv) * 1998-05-18 1999-11-19 Telia Ab Förbättringar i eller som hänför sig till telekommunikationsöverföringssystem
US7952511B1 (en) 1999-04-07 2011-05-31 Geer James L Method and apparatus for the detection of objects using electromagnetic wave attenuation patterns
US6650617B1 (en) 2000-02-22 2003-11-18 Thomson Licensing S.A. Reduced complexity FFT window synchronization for an orthogonal frequency division multiplexing system
US6771591B1 (en) 2000-07-31 2004-08-03 Thomson Licensing S.A. Method and system for processing orthogonal frequency division multiplexed signals
US6947748B2 (en) 2000-12-15 2005-09-20 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
KR100476896B1 (ko) * 2002-05-22 2005-03-17 삼성전자주식회사 티씨엠-아이에스디엔 라인과 공존하는 디지털 가입자라인을 이용한 통신 시스템 및 그것의 프레임 동기화 방법
US7362802B2 (en) 2003-09-12 2008-04-22 Zarbana Digital Fund Llc Frequency domain equalizer for wireless commuications system
US7480234B1 (en) 2003-10-31 2009-01-20 Cisco Technology, Inc. Initial timing estimation in a wireless network receiver
US7573851B2 (en) 2004-12-07 2009-08-11 Adaptix, Inc. Method and system for switching antenna and channel assignments in broadband wireless networks
US7562151B2 (en) * 2005-11-30 2009-07-14 Microsoft Corporation Peer tunnels and peer group targets
US8103621B2 (en) * 2008-10-03 2012-01-24 International Business Machines Corporation HSM two-way orphan reconciliation for extremely large file systems
JP6115416B2 (ja) * 2013-09-06 2017-04-19 富士通株式会社 光送信器、光受信器、光伝送システム、光送信方法、光受信方法、および光伝送方法
US10104313B2 (en) 2016-07-08 2018-10-16 United Technologies Corporation Method for turbine component qualification

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9020170D0 (en) * 1990-09-14 1990-10-24 Indep Broadcasting Authority Orthogonal frequency division multiplexing
US5479447A (en) * 1993-05-03 1995-12-26 The Board Of Trustees Of The Leland Stanford, Junior University Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines
SE9302453L (sv) * 1993-07-20 1994-10-17 Telia Ab Förfarande och anordning för synkronisering i digitalt transmissionssystem av typen OFDM
JPH0746218A (ja) * 1993-07-28 1995-02-14 Sony Corp ディジタル復調装置
US5444697A (en) * 1993-08-11 1995-08-22 The University Of British Columbia Method and apparatus for frame synchronization in mobile OFDM data communication
SE9400116L (sv) * 1994-01-18 1995-03-27 Telia Ab Förfarande och arrangemang för synkronisering vid OFDM- modulering
US5625651A (en) * 1994-06-02 1997-04-29 Amati Communications, Inc. Discrete multi-tone data transmission system using an overhead bus for synchronizing multiple remote units
SE514986C2 (sv) * 1995-03-01 2001-05-28 Telia Ab Metod och anordning för synkronisering vid OFDM-system
US5732113A (en) * 1996-06-20 1998-03-24 Stanford University Timing and frequency synchronization of OFDM signals
US6144711A (en) * 1996-08-29 2000-11-07 Cisco Systems, Inc. Spatio-temporal processing for communication
US5953311A (en) * 1997-02-18 1999-09-14 Discovision Associates Timing synchronization in a receiver employing orthogonal frequency division multiplexing
US5909463A (en) * 1996-11-04 1999-06-01 Motorola, Inc. Single-chip software configurable transceiver for asymmetric communication system
US5966416A (en) * 1996-11-21 1999-10-12 Dsp Group, Inc. Verification of PN synchronization in a spread-spectrum communications receiver

Also Published As

Publication number Publication date
NO985029D0 (no) 1998-10-29
EP0920758A2 (en) 1999-06-09
EE9800374A (et) 1999-04-15
EP0920758B1 (en) 2002-12-18
SE9703629D0 (sv) 1997-10-06
NO985029L (no) 1999-01-04
DE69810251D1 (de) 2003-01-30
US6751261B1 (en) 2004-06-15
WO1998039872A3 (en) 2000-08-24
WO1998039872A2 (en) 1998-09-11

Similar Documents

Publication Publication Date Title
EP1439677B9 (en) Synchronisation symbol structure for an OFDM system
KR100799539B1 (ko) Ｏｆｄｍ 통신망에 있어 이웃 시퀀스간 곱의 자기 상관성이좋은 프리앰블을 이용한 시간 동기 방법 및 이를 이용한주파수 옵셋 추정 방법
SE9703629L (sv) Förbättringar av, eller med avseende på, synkronisering
KR20070110927A (ko) 더 간단한 아날로그 필터링을 위해 ｏｆｄｍ 시스템에서ｉｆｆｔ 를 사용한 디지털 업샘플링의 효율적인 이용
EA200301161A1 (ru) Способ синхронизации передачи данных множеству пользователей в нисходящем канале многоточечной системы передачи данных с использованием очу-модуляции
EP1463251A3 (en) Multicarrier transmission with channel estimation
CN110011779A (zh) 端口定时偏差补偿方法、***和终端
US11909572B2 (en) Symbol generator and symbol generation method
KR100746554B1 (ko) 신호 송/수신 장치
WO1998039886A3 (en) Improvements in, or relating to synchronisation
TWI256790B (en) Process of synchronization in the time and frequency domain of multiple modems in a transmission system with OFDM modulation
Bolcskei Blind estimation of symbol timing and carrier frequency offset in pulse shaping OFDM systems
CN104660540B (zh) 一种lte***的同步跟踪方法
KR20010048447A (ko) Ｏｆｄｍ 시스템에서 ｃｙｃｌｉｃ ｓｕｆｆｉｘ를사용한 보호구간의 구현 방법 및 장치
Kim et al. A new fast symbol timing recovery algorithm for OFDM systems
KR20040035287A (ko) Ｏｆｄｍ 수신시스템의 동기획득시간을 단축시킬 수 있는ｏｆｄｍ 전송시스템 및 그 방법
KR100940870B1 (ko) 이동통신 시스템에서의 동기 확보 방법
US20010050960A1 (en) Multi-carrier communication system with sample rate pilot carrier and time division duplexing frame rate pilot carrier
Kumar Synchronization and performance evaluation of future wireless cellular system based on the use of new multi-carrier transmission techniques
Yildirim OFDM based communication system using USRP
Elmaroud et al. Performance analysis of asynchronous and non linear FBMC systems
Tang et al. A data aided estimation algorithm of decimal frequency offset for OFDM system
Dimitrijević et al. Optimization of the frame synchronization algorithm for OFDM communications
van de Beek et al. A conceptual study of OFDM-based multiple access schemes: Part 4: Tracking of time and frequency offset
Bishnu et al. ICI Mitigation Techniques in OFDM System: A Review

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 9703629-7