EP 1391093 A1 20040225 - RECOGNITION OF MODULATION TYPE BY MEANS OF A MARKED PHASE ROTATION FACTOR OF A TRAINING SEQUENCE
Title (en)
RECOGNITION OF MODULATION TYPE BY MEANS OF A MARKED PHASE ROTATION FACTOR OF A TRAINING SEQUENCE
Title (de)
ERKENNUNG DER MODULATIONSART MITTELS EINES DER TRAININGSSEQUENZ AUFGEPRÄGTEN PHASENROTATIONSFAKTORS
Title (fr)
RECONNAISSANCE D'UN TYPE DE MODULATION AU MOYEN D'UN FACTEUR DE ROTATION DE PHASE MARQUE DE LA SEQUENCE D'APPRENTISSAGE
Publication
Application
Priority
- DE 0201623 W 20020506
- DE 10124782 A 20010521
Abstract (en)
[origin: WO02096051A1] In order to carry out blind modulation detection, the data symbols of the training sequence are rotated on the transmitter side by a phase rotation factor which is specific for the type of modulation used; the data symbols are back-rotated or de-rotated on the receiver side by varous phase reduction factors and a correlation function is formed between the sequences thus obtained and the original training sequence. The type of modulation used is obtained from the phase rotation factor which provides a maximum correlation function.
IPC 1-7
IPC 8 full level
H04L 27/00 (2006.01)
CPC (source: EP US)
H04L 27/0008 (2013.01 - EP US); H04L 27/0012 (2013.01 - EP US); H04L 27/2017 (2013.01 - EP US); H04L 27/2067 (2013.01 - EP US)
Citation (search report)
See references of WO 02096051A1
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)
WO 02096051 A1 20021128; CN 100550871 C 20091014; CN 1526222 A 20040901; DE 10124782 A1 20021212; DE 10124782 B4 20120621; DE 10124782 B8 20120913; EP 1391093 A1 20040225; US 2004096012 A1 20040520; US 7313204 B2 20071225
DOCDB simple family (application)
DE 0201623 W 20020506; CN 02810453 A 20020506; DE 10124782 A 20010521; EP 02771624 A 20020506; US 70677903 A 20031112