Processing

Please wait...

Settings

Settings

Goto Application

1. WO2007036612 - SYNCHRONIZATION METHOD, RECEIVER, NETWORK ELEMENT, COMMUNICATION DEVICE, ELECTRONIC DEVICE, COMPUTER PROGRAM PRODUCT AND COMPUTER PROGRAM DISTRIBUTION MEDIUM

Publication Number WO/2007/036612
Publication Date 05.04.2007
International Application No. PCT/FI2006/050417
International Filing Date 28.09.2006
IPC
H04L 27/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
H04B 7/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
CPC
H04L 27/2659
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2647Arrangements specific to the receiver only
2655Synchronisation arrangements
2657Carrier synchronisation
2659Coarse or integer frequency offset determination and synchronisation
H04L 27/266
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2647Arrangements specific to the receiver only
2655Synchronisation arrangements
2657Carrier synchronisation
266Fine or fractional frequency offset determination and synchronisation
H04L 27/2663
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2647Arrangements specific to the receiver only
2655Synchronisation arrangements
2662Symbol synchronisation
2663Coarse synchronisation, e.g. by correlation
H04L 27/2665
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2647Arrangements specific to the receiver only
2655Synchronisation arrangements
2662Symbol synchronisation
2665Fine synchronisation, e.g. by positioning the FFT window
H04L 27/2675
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2647Arrangements specific to the receiver only
2655Synchronisation arrangements
2668Details of algorithms
2673characterised by synchronisation parameters
2675Pilot or known symbols
H04L 27/2678
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2647Arrangements specific to the receiver only
2655Synchronisation arrangements
2668Details of algorithms
2673characterised by synchronisation parameters
2676Blind, i.e. without using known symbols
2678using cyclostationarities, e.g. cyclic prefix or postfix
Applicants
  • NOKIA CORPORATION [FI]/[FI] (AllExceptUS)
  • CHARPIT, Gilles [GB]/[GB] (UsOnly)
Inventors
  • CHARPIT, Gilles
Agents
  • KOLSTER OY AB
Priority Data
2005097729.09.2005FI
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYNCHRONIZATION METHOD, RECEIVER, NETWORK ELEMENT, COMMUNICATION DEVICE, ELECTRONIC DEVICE, COMPUTER PROGRAM PRODUCT AND COMPUTER PROGRAM DISTRIBUTION MEDIUM
(FR) METHODE DE SYNCHRONISATION, RECEPTEUR, ELEMENT DE RESEAU, DISPOSITIF DE COMMUNICATION, DISPOSITIF ELECTRONIQUE, PRODUIT DE PROGRAMME INFORMATIQUE ET SUPPORT DE DISTRIBUTION DE PROGRAMME INFORMATIQUE ASSOCIE
Abstract
(EN)
The invention is related to a synchronization method in a communication system. The invention includes: carrying out a coarse time offset and frequency offset estimation, first estimating errors in the coarse time-offset and frequency offset estimation by using a maximum-likelihood time-offset estimation and joint optimisation of time-offset and frequency-offset, second estimating frequency offset and time offset by using error estimates in a closed tracking loop.
(FR)
L'invention concerne une méthode de synchronisation mise en oeuvre dans un système de communication. Cette méthode consiste à: effectuer des estimations grossières d'un décalage temporel et d'un décalage de fréquence, à savoir effectuer d'abord des estimations grossières d'erreurs du décalage temporel et du décalage de fréquence, à l'aide d'une estimation de décalage temporel de probabilité maximale et d'une optimisation commune du décalage temporel et du décalage de fréquence, puis effectuer une seconde estimation du décalage de fréquence et du décalage temporel, à l'aide des estimations d'erreur, dans une boucle de traçage fermée.
Also published as
Latest bibliographic data on file with the International Bureau