WO2009104145A3 - Orthogonal frequency division multiplexing timing synchronization - Google Patents

Orthogonal frequency division multiplexing timing synchronization Download PDF

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Publication number
WO2009104145A3
WO2009104145A3 PCT/IB2009/050669 IB2009050669W WO2009104145A3 WO 2009104145 A3 WO2009104145 A3 WO 2009104145A3 IB 2009050669 W IB2009050669 W IB 2009050669W WO 2009104145 A3 WO2009104145 A3 WO 2009104145A3
Authority
WO
WIPO (PCT)
Prior art keywords
timing synchronization
time slot
stimi
frequency division
division multiplexing
Prior art date
Application number
PCT/IB2009/050669
Other languages
French (fr)
Other versions
WO2009104145A2 (en
Inventor
Yushan Li
Yan Li
Original Assignee
Nxp B.V.
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 Nxp B.V. filed Critical Nxp B.V.
Publication of WO2009104145A2 publication Critical patent/WO2009104145A2/en
Publication of WO2009104145A3 publication Critical patent/WO2009104145A3/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
    • H04L27/2657—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
    • H04L27/2662—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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

Abstract

STiMi is a mobile multimedia broadcasting trade standard that is released by the Chinese State Administration of Radio Film and Television (SARFT). An efficient timing synchronization strategy for STiMi based on its special frame structure is disclosed. Such scheme consists of two stages, time slot detection and fine timing synchronization. The time slot detection has an important purpose of acquiring a coarse position for one time slot. The second stage is to finely adjust the FFT window based on the estimated time domain CIR. The effectiveness of the disclosed scheme is verified by simulation results. It is demonstrated that this approach can effectively handle channels with long delay spread as well as small pre-echoes.
PCT/IB2009/050669 2008-02-19 2009-02-18 Orthogonal frequency division multiplexing timing synchronization WO2009104145A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2989908P 2008-02-19 2008-02-19
US61/029,899 2008-02-19

Publications (2)

Publication Number Publication Date
WO2009104145A2 WO2009104145A2 (en) 2009-08-27
WO2009104145A3 true WO2009104145A3 (en) 2009-11-19

Family

ID=40751219

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/050669 WO2009104145A2 (en) 2008-02-19 2009-02-18 Orthogonal frequency division multiplexing timing synchronization

Country Status (1)

Country Link
WO (1) WO2009104145A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3387754B1 (en) * 2015-12-07 2021-05-12 Telefonaktiebolaget LM Ericsson (publ) Wireless communication device and method therein for time synchronization in a wireless communication network
CN111277524B (en) * 2020-01-20 2022-07-22 广州全盛威信息技术有限公司 Adaptive frequency offset compensation method and device applied to ISM frequency band

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005022797A2 (en) * 2003-09-02 2005-03-10 Qualcomm, Incorporated Synchronization in a broadcast ofdm system using time division multiplexed pilots

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005022797A2 (en) * 2003-09-02 2005-03-10 Qualcomm, Incorporated Synchronization in a broadcast ofdm system using time division multiplexed pilots

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SCHMIDL T M ET AL: "Robust Frequency and Timing Synchronization for OFDM", IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 45, no. 12, 1 December 1997 (1997-12-01), pages 1613 - 1621, XP011009085 *

Also Published As

Publication number Publication date
WO2009104145A2 (en) 2009-08-27

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