EP 1221794 A9 20021204 - Method and arrangement to determine a clock timing error in a multi-carrier transmission system
Title (en)
Method and arrangement to determine a clock timing error in a multi-carrier transmission system
Title (de)
Verfahren und Vorrichtung zur Bestimmung eines Taktfehlers in einem Mehrträgerübertragungssystem
Title (fr)
Procédé et dispositif pour la détermination des erreurs temporelles d'horloge dans un système à transmission multiporteuse
Publication
Application
Priority
EP 01400024 A 20010105
Abstract (en)
[origin: EP1221794A1] The invention relates to a reception arrangement for receiving multicarrier symbols, each multicarrier symbol (S1, S2, S3) comprising a plurality of single carrier symbols, each symbol modulating a respective carrier frequency (f1, f2, f3). The single carrier symbols are transmitted simultaneously. The arrangement comprises means for detecting phase error of each single carrier and means for correcting the phase of a sampling clock (52) in view of the estimated error. The means for estimating phase error comprise means (581 ... 58N, 24, 40) for determining a parameter êi for a carrier fi according to the following formula: <MATH> wherein ri_k is the detected signal for the single carrier at a time t, ai_k is the corresponding symbol at the same time t, ai_k-1 and ri_k-1 correspond, respectively, to ai_k and ri_k at time t-NT, NT being the duration of transmission of a multicarrier symbol, and EÄ Ü means an average value on several successive symbols. <IMAGE> <IMAGE>
IPC 1-7
IPC 8 full level
H04J 11/00 (2006.01); H04L 27/26 (2006.01)
CPC (source: EP US)
H04L 27/2657 (2013.01 - EP US); H04L 27/2662 (2013.01 - EP US); H04L 27/2679 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1221794 A1 20020710; EP 1221794 A9 20021204; JP 2002217859 A 20020802; US 2002150071 A1 20021017
DOCDB simple family (application)
EP 01400024 A 20010105; JP 2001395850 A 20011227; US 3530202 A 20020104