EP1825625A4 - Method for estimating frequency/time offset and apparatus using the same in ofdm communication system - Google Patents

Method for estimating frequency/time offset and apparatus using the same in ofdm communication system

Info

Publication number
EP1825625A4
EP1825625A4 EP05780670A EP05780670A EP1825625A4 EP 1825625 A4 EP1825625 A4 EP 1825625A4 EP 05780670 A EP05780670 A EP 05780670A EP 05780670 A EP05780670 A EP 05780670A EP 1825625 A4 EP1825625 A4 EP 1825625A4
Authority
EP
European Patent Office
Prior art keywords
communication system
same
time offset
ofdm communication
estimating frequency
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.)
Withdrawn
Application number
EP05780670A
Other languages
German (de)
French (fr)
Other versions
EP1825625A1 (en
Inventor
Hee-Wook Kim
Kun-Seok Kang
Do-Seob Ahn
Ho-Jin Lee
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.)
Electronics and Telecommunications Research Institute ETRI
Original Assignee
Electronics and Telecommunications Research Institute ETRI
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 Electronics and Telecommunications Research Institute ETRI filed Critical Electronics and Telecommunications Research Institute ETRI
Publication of EP1825625A1 publication Critical patent/EP1825625A1/en
Publication of EP1825625A4 publication Critical patent/EP1825625A4/en
Withdrawn legal-status Critical Current

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
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2676—Blind, i.e. without using known symbols
    • H04L27/2679—Decision-aided
    • 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
    • H04L27/2602—Signal structure
    • 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
    • H04L27/2662—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
    • H04L27/2668—Details of algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
EP05780670A 2004-12-14 2005-07-21 Method for estimating frequency/time offset and apparatus using the same in ofdm communication system Withdrawn EP1825625A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040105798A KR100626644B1 (en) 2004-12-14 2004-12-14 Method for estimating frequency/time offset and its using apparatus in OFDM communication system
PCT/KR2005/002372 WO2006065016A1 (en) 2004-12-14 2005-07-21 Method for estimating frequency/time offset and apparatus using the same in ofdm communication system

Publications (2)

Publication Number Publication Date
EP1825625A1 EP1825625A1 (en) 2007-08-29
EP1825625A4 true EP1825625A4 (en) 2013-01-02

Family

ID=36588042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05780670A Withdrawn EP1825625A4 (en) 2004-12-14 2005-07-21 Method for estimating frequency/time offset and apparatus using the same in ofdm communication system

Country Status (3)

Country Link
EP (1) EP1825625A4 (en)
KR (1) KR100626644B1 (en)
WO (1) WO2006065016A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100486238C (en) * 2005-03-21 2009-05-06 东南大学 Method of low-complexity frequency deviation estimation based on adjustable time frequency training sequence
KR100758873B1 (en) * 2005-12-30 2007-09-19 포스데이타 주식회사 Frequency offset estimation apparatus and method in Wireless telecommunication system
KR100852152B1 (en) 2006-12-08 2008-08-13 한국전자통신연구원 Apparatus and method for compensation of frequency offset in OFDMA
KR101441597B1 (en) * 2007-06-13 2014-09-24 삼성전자주식회사 Apparatus and method for frequency offset estimation in fft-based frequency division multiple access systems
KR101315383B1 (en) 2007-08-10 2013-10-07 한국과학기술원 Method and apparatus for fine frequency synchronization in WiBro system without GPS receiver
CN101312445B (en) * 2008-05-12 2011-03-16 北京创毅视讯科技有限公司 Decimal frequency bias estimation method and apparatus of receiver
CN101582871B (en) * 2008-05-15 2012-06-20 富士通株式会社 Time frequency synchronization unit and method for OFDM system receiver
KR101285392B1 (en) * 2009-12-16 2013-07-10 한국전자통신연구원 Apparatus for receiving signal in multi carrier transmission system and method for interference cancellation
CN102546485B (en) * 2010-12-27 2015-04-01 中兴通讯股份有限公司 Frequency deviation estimating method and device
KR101114849B1 (en) * 2010-12-30 2012-03-07 성균관대학교산학협력단 Synchronization method and apparatus for othorgonal frequency division multiplexing system
CN103581072B (en) * 2013-11-25 2017-02-15 大唐移动通信设备有限公司 Frequency offset estimation method and device for multi-carrier system
CN108183841B (en) * 2017-12-29 2020-07-28 深圳市极致汇仪科技有限公司 Base band data processing method and system based on IEEE802.11ah in comprehensive tester

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030026295A1 (en) * 2001-06-15 2003-02-06 Motorola, Inc. Method and apparatus for synchronizing an OFDM signal
US20040141457A1 (en) * 2003-01-18 2004-07-22 Bo-Seok Seo Method of determining training signal in OFDM, and apparatus and method for receiving OFDM signal using the training signal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6097776A (en) 1998-02-12 2000-08-01 Cirrus Logic, Inc. Maximum likelihood estimation of symbol offset
US6678339B1 (en) 2000-02-02 2004-01-13 Agere Systems Inc. Globally optimum maximum likelihood estimation of joint carrier frequency offset and symbol timing error in multi-carrier systems
KR100459429B1 (en) * 2002-07-19 2004-12-03 엘지전자 주식회사 Synchronization method for wireless lan modem of ofdm system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030026295A1 (en) * 2001-06-15 2003-02-06 Motorola, Inc. Method and apparatus for synchronizing an OFDM signal
US20040141457A1 (en) * 2003-01-18 2004-07-22 Bo-Seok Seo Method of determining training signal in OFDM, and apparatus and method for receiving OFDM signal using the training signal

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006065016A1 *
VAN DE BEEK J-J ET AL: "ML ESTIMATION OF TIMING AND FREQUENCY OFFSET IN MULTICARRIER SYSTEMS", INTERNET CITATION, April 1996 (1996-04-01), XP003010945, Retrieved from the Internet <URL:http://www.sm.luth.se/csee/sp/research/report/bsb96r.pdf> [retrieved on 20070101] *

Also Published As

Publication number Publication date
EP1825625A1 (en) 2007-08-29
KR20060067034A (en) 2006-06-19
WO2006065016A1 (en) 2006-06-22
KR100626644B1 (en) 2006-09-21

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