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GB2320868B - Apparatus and methods for measuring coarse frequency offset of a multi-carrier signal - Google Patents

Apparatus and methods for measuring coarse frequency offset of a multi-carrier signal

Info

Publication number
GB2320868B
GB2320868B GB9725555A GB9725555A GB2320868B GB 2320868 B GB2320868 B GB 2320868B GB 9725555 A GB9725555 A GB 9725555A GB 9725555 A GB9725555 A GB 9725555A GB 2320868 B GB2320868 B GB 2320868B
Authority
GB
United Kingdom
Prior art keywords
methods
carrier signal
frequency offset
coarse frequency
measuring coarse
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
GB9725555A
Other versions
GB2320868A (en
GB9725555D0 (en
Inventor
Philip Lawrence Secker
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.)
Ensigma Ltd
Original Assignee
Ensigma 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 Ensigma Ltd filed Critical Ensigma Ltd
Publication of GB9725555D0 publication Critical patent/GB9725555D0/en
Publication of GB2320868A publication Critical patent/GB2320868A/en
Application granted granted Critical
Publication of GB2320868B publication Critical patent/GB2320868B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04L27/2602—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
    • 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
    • H04L27/2668—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
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26132—Structure of the reference signals using repetition

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB9725555A 1996-12-03 1997-12-03 Apparatus and methods for measuring coarse frequency offset of a multi-carrier signal Expired - Lifetime GB2320868B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9625094.9A GB9625094D0 (en) 1996-12-03 1996-12-03 Apparatus and methods for measuring coarse frequency offset of a multi-carrier signal

Publications (3)

Publication Number Publication Date
GB9725555D0 GB9725555D0 (en) 1998-02-04
GB2320868A GB2320868A (en) 1998-07-01
GB2320868B true GB2320868B (en) 2002-02-13

Family

ID=10803849

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9625094.9A Pending GB9625094D0 (en) 1996-12-03 1996-12-03 Apparatus and methods for measuring coarse frequency offset of a multi-carrier signal
GB9725555A Expired - Lifetime GB2320868B (en) 1996-12-03 1997-12-03 Apparatus and methods for measuring coarse frequency offset of a multi-carrier signal

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9625094.9A Pending GB9625094D0 (en) 1996-12-03 1996-12-03 Apparatus and methods for measuring coarse frequency offset of a multi-carrier signal

Country Status (1)

Country Link
GB (2) GB9625094D0 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2325128B (en) * 1997-05-02 2002-06-19 Lsi Logic Corp Demodulating digital video broadcast signals
GB9827108D0 (en) 1998-12-10 1999-02-03 Ensigma Ltd Broadcast receivers
EP1018827B1 (en) 1999-01-08 2004-05-06 Sony International (Europe) GmbH Synchronisation structure for OFDM system
ATE496471T1 (en) * 1999-02-22 2011-02-15 Sony Deutschland Gmbh SYNCHRONIZATION ATTACHMENT STRUCTURE FOR OFDM SYSTEM
EP2088727B1 (en) * 1999-02-22 2012-08-08 Sony Deutschland Gmbh Synchronisation symbol structure for OFDM system
EP1061705B1 (en) 1999-06-16 2004-12-22 Sony International (Europe) GmbH Optimized synchronization preamble structure for OFDM system
WO2002023844A2 (en) * 2000-09-12 2002-03-21 Siemens Aktiengesellschaft Method and orthogonal frequency division multiplexing (ofdm) receiver for reducing the influence of harmonic interferences on ofdm transmission systems
EP1298875A1 (en) * 2001-09-26 2003-04-02 Siemens Aktiengesellschaft OFDM transmission using a block guard interval
EP1762066B1 (en) 2004-06-28 2012-12-12 Nokia Corporation Fft carrier frequency offset estimation for ofdm signal
WO2006129166A1 (en) * 2005-05-31 2006-12-07 Nokia Corporation Method and apparatus for generating pilot sequences to reduce peak-to-average power ratio
US8144819B2 (en) * 2007-04-30 2012-03-27 Telefonaktiebolaget L M Ericsson (Publ) Synchronization for chirp sequences
JP4915476B2 (en) * 2008-08-21 2012-04-11 富士通株式会社 Frequency deviation estimation apparatus and method
GB201114079D0 (en) * 2011-06-13 2011-09-28 Neul Ltd Mobile base station

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0529421A2 (en) * 1991-08-29 1993-03-03 Daimler-Benz Aktiengesellschaft Method and apparatus for measuring carrier frequency offset in a multichannel communications system
WO1995007581A1 (en) * 1993-09-10 1995-03-16 Deutsche Thomson-Brandt Gmbh Method for the transmission of reference signals in an ofdm system
GB2310118A (en) * 1996-02-09 1997-08-13 Mitsubishi Electric Corp Tuning local oscillator frequency in PSK and OFDM digital broadcast.
GB2311445A (en) * 1996-03-18 1997-09-24 Motorola Inc Method for determining weighting coefficients in a CDMA radio receiver

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0529421A2 (en) * 1991-08-29 1993-03-03 Daimler-Benz Aktiengesellschaft Method and apparatus for measuring carrier frequency offset in a multichannel communications system
WO1995007581A1 (en) * 1993-09-10 1995-03-16 Deutsche Thomson-Brandt Gmbh Method for the transmission of reference signals in an ofdm system
GB2310118A (en) * 1996-02-09 1997-08-13 Mitsubishi Electric Corp Tuning local oscillator frequency in PSK and OFDM digital broadcast.
GB2311445A (en) * 1996-03-18 1997-09-24 Motorola Inc Method for determining weighting coefficients in a CDMA radio receiver

Also Published As

Publication number Publication date
GB2320868A (en) 1998-07-01
GB9725555D0 (en) 1998-02-04
GB9625094D0 (en) 1997-01-22

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20171202