GB0706263D0 - Method and apparatus for symbol timing if OFDM systems - Google Patents

Method and apparatus for symbol timing if OFDM systems

Info

Publication number
GB0706263D0
GB0706263D0 GBGB0706263.1A GB0706263A GB0706263D0 GB 0706263 D0 GB0706263 D0 GB 0706263D0 GB 0706263 A GB0706263 A GB 0706263A GB 0706263 D0 GB0706263 D0 GB 0706263D0
Authority
GB
United Kingdom
Prior art keywords
symbol timing
ofdm systems
ofdm
systems
symbol
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Withdrawn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
GBGB0706263.1A
Other versions
GB2447972A (en
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to GB0706263A priority Critical patent/GB2447972A/en
Publication of GB0706263D0 publication Critical patent/GB0706263D0/en
Publication of GB2447972A publication Critical patent/GB2447972A/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Withdrawn legal-status Critical Current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
    • H04L27/2662—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
    • H04L27/2662—Symbol synchronisation
    • H04L27/2663—Coarse synchronisation, e.g. by correlation
    • 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
    • H04L27/2665—Fine synchronisation, e.g. by positioning the FFT window
    • 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
    • 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
    • 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
    • H04L27/2647—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)
  • Synchronisation In Digital Transmission Systems (AREA)
GB0706263A 2007-03-30 2007-03-30 Synchronising OFDM Symbols by auto-correlating cyclic prefix then cross correlating scattered pilots in the time domain Withdrawn GB2447972A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0706263A GB2447972A (en) 2007-03-30 2007-03-30 Synchronising OFDM Symbols by auto-correlating cyclic prefix then cross correlating scattered pilots in the time domain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0706263A GB2447972A (en) 2007-03-30 2007-03-30 Synchronising OFDM Symbols by auto-correlating cyclic prefix then cross correlating scattered pilots in the time domain

Publications (2)

Publication Number Publication Date
GB0706263D0 true GB0706263D0 (en) 2007-05-09
GB2447972A GB2447972A (en) 2008-10-01

Family

ID=38050565

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0706263A Withdrawn GB2447972A (en) 2007-03-30 2007-03-30 Synchronising OFDM Symbols by auto-correlating cyclic prefix then cross correlating scattered pilots in the time domain

Country Status (1)

Country Link
GB (1) GB2447972A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115913847A (en) * 2021-09-30 2023-04-04 硅实验室公司 Using preambles with irregular carrier spacing for frequency synchronization

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8867634B2 (en) 2009-03-12 2014-10-21 Thomson Licensing Method and appratus for spectrum sensing for OFDM systems employing pilot tones
US8194799B2 (en) 2009-03-30 2012-06-05 King Fahd University of Pertroleum & Minerals Cyclic prefix-based enhanced data recovery method
ES2452170T3 (en) 2009-05-14 2014-03-31 Koninklijke Philips N.V. Robust detection of DVD-T / H transmissions
CN101924725B (en) * 2009-06-17 2013-01-30 国民技术股份有限公司 Frame synchronization method and device for OFDM system
CN101938435B (en) * 2009-06-30 2013-03-20 中兴通讯股份有限公司 Time bias estimation device and method for orthogonal frequency division multiplexing system
CN106487735A (en) * 2015-09-01 2017-03-08 中兴通讯股份有限公司 A kind of frequency deviation estimating method and device
US20220408285A1 (en) * 2018-10-24 2022-12-22 Lg Electronics Inc. Method and device for sidelink terminal to detect sidelink signal in wireless communication system
CN111884979B (en) * 2020-07-30 2021-06-01 电子科技大学 OFDM smart grid impulse noise resistant symbol synchronization method
CN111884978B (en) * 2020-07-30 2021-06-01 电子科技大学 OFDM (orthogonal frequency division multiplexing) anti-impulse noise symbol synchronization method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115913847A (en) * 2021-09-30 2023-04-04 硅实验室公司 Using preambles with irregular carrier spacing for frequency synchronization

Also Published As

Publication number Publication date
GB2447972A (en) 2008-10-01

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)