WO2001097478A3 - Frame synchronization in a multicarrier communication system - Google Patents

Frame synchronization in a multicarrier communication system Download PDF

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Publication number
WO2001097478A3
WO2001097478A3 PCT/US2001/015891 US0115891W WO0197478A3 WO 2001097478 A3 WO2001097478 A3 WO 2001097478A3 US 0115891 W US0115891 W US 0115891W WO 0197478 A3 WO0197478 A3 WO 0197478A3
Authority
WO
WIPO (PCT)
Prior art keywords
communication system
ofdm
pilot tone
time slots
frame synchronization
Prior art date
Application number
PCT/US2001/015891
Other languages
French (fr)
Other versions
WO2001097478A2 (en
Inventor
Jari M Heinonen
Michael R Hirano
Steven E Mcmeekin
Original Assignee
At & T Wireless Services Inc
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 US09/592,961 external-priority patent/US6807147B1/en
Application filed by At & T Wireless Services Inc filed Critical At & T Wireless Services Inc
Publication of WO2001097478A2 publication Critical patent/WO2001097478A2/en
Publication of WO2001097478A3 publication Critical patent/WO2001097478A3/en

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
    • H04L27/2656—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
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols

Abstract

Methods and apparatus suitable for use in obtaining frame synchronization in an Orthogonal Frequency Division Multiplexing (OFDM) communication system are described. The OFDM communication system includes a plurality of base units which simultaneously transmit a plurality of pilot tones in a predetermined pilot tone pattern during one or more time slots of a plurality of time slots defining a message slot. The method includes the steps of receiving OFDM signals within a time slot; determining a signal level in the OFDM signals at each frequency of a plurality of pilot tone frequencies; performing a correlation between the signal levels and the predetermined pilot tone pattern; generating and storing a pattern detection value based on performing the correlation; and repeating the receiving, determining, performing, generating and storing for each time slot of the plurality of time slots.
PCT/US2001/015891 2000-06-13 2001-05-16 Frame synchronization in a multicarrier communication system WO2001097478A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/592,961 2000-06-13
US09/592,961 US6807147B1 (en) 1999-06-23 2000-06-13 Methods and apparatus for use in obtaining frame synchronization in an OFDM communication system

Publications (2)

Publication Number Publication Date
WO2001097478A2 WO2001097478A2 (en) 2001-12-20
WO2001097478A3 true WO2001097478A3 (en) 2002-07-11

Family

ID=24372765

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/015891 WO2001097478A2 (en) 2000-06-13 2001-05-16 Frame synchronization in a multicarrier communication system

Country Status (1)

Country Link
WO (1) WO2001097478A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602004027322D1 (en) * 2003-01-31 2010-07-08 Ntt Docomo Inc transmission synchronization
JP4359176B2 (en) 2003-07-30 2009-11-04 パナソニック株式会社 Frame synchronization detection circuit, frame synchronization detection method, control information detection circuit, control information decoding method, and receiving apparatus
DE60316202T2 (en) * 2003-10-03 2008-05-29 Nokia Corp. METHOD, SYSTEM AND RECEIVER FOR RECEIVING A MULTI-TRANSFER TRANSMISSION
US7430196B2 (en) 2005-01-14 2008-09-30 Nokia Corporation Transmission systems
KR100913979B1 (en) * 2006-03-31 2009-08-25 노키아 코포레이션 Method, system and receiver for receiving a multi-carrier transmission
CN101098185B (en) * 2006-06-29 2011-03-16 中兴通讯股份有限公司 Frame synchronization method for mobile communication system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5444697A (en) * 1993-08-11 1995-08-22 The University Of British Columbia Method and apparatus for frame synchronization in mobile OFDM data communication
EP0722235A2 (en) * 1995-01-10 1996-07-17 Matsushita Electric Industrial Co., Ltd. Method and transmitting orthogonal frequency division multiplexed (OFDM) signals and receiver thereof
US5627863A (en) * 1994-07-15 1997-05-06 Amati Communications Corporation Frame synchronization in multicarrier transmission systems
US5745535A (en) * 1994-11-08 1998-04-28 Anritsu Corporation Precision symbol discrimination timing detection (clock recovery) system for multi-carrier modulation signal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5444697A (en) * 1993-08-11 1995-08-22 The University Of British Columbia Method and apparatus for frame synchronization in mobile OFDM data communication
US5627863A (en) * 1994-07-15 1997-05-06 Amati Communications Corporation Frame synchronization in multicarrier transmission systems
US5745535A (en) * 1994-11-08 1998-04-28 Anritsu Corporation Precision symbol discrimination timing detection (clock recovery) system for multi-carrier modulation signal
EP0722235A2 (en) * 1995-01-10 1996-07-17 Matsushita Electric Industrial Co., Ltd. Method and transmitting orthogonal frequency division multiplexed (OFDM) signals and receiver thereof

Also Published As

Publication number Publication date
WO2001097478A2 (en) 2001-12-20

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