EP 1238472 A1 20020911 - METHOD AND SYSTEM FOR COMPENSATING FOR SIGNAL ECHOES THAT OCCUR IN DUPLEX DATA TRANSMISSION DURING DISCRETE MULTI-TONE MODULATION
Title (en)
METHOD AND SYSTEM FOR COMPENSATING FOR SIGNAL ECHOES THAT OCCUR IN DUPLEX DATA TRANSMISSION DURING DISCRETE MULTI-TONE MODULATION
Title (de)
VERFAHREN UND ANORDNUNG ZUR KOMPENSATION VON SIGNALECHOS BEI DER DUPLEX-DATENÜBERTRAGUNG BEI DER DISKRETEN MULTITONMODULATION
Title (fr)
PROCEDE ET SYSTEME POUR COMPENSER L'ECHO DE SIGNAL DANS LA TRANSMISSION DE DONNEES EN DUPLEX LORS DE LA MODULATION DISCRETE PAR OSCILLATEUR MULTISONORE
Publication
Application
Priority
- DE 19960242 A 19991214
- EP 0012118 W 20001201
Abstract (en)
[origin: WO0145292A1] The inventive method provides that during an initialization phase of a data transmission with discrete multi-tone modulation in the range of frequencies, a first error of a first reference channel is determined from the difference between a transmit value and a receive value of a signal of this channel and is used for correcting the remaining frequency channels. The first reference channel is corrected using the error of a second reference channel.
IPC 1-7
IPC 8 full level
H04B 3/20 (2006.01); H04B 3/23 (2006.01); H04J 11/00 (2006.01)
CPC (source: EP US)
H04B 3/23 (2013.01 - EP US); H04B 3/238 (2013.01 - EP US)
Citation (search report)
See references of WO 0145292A1
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 0145292 A1 20010621; CN 1180544 C 20041215; CN 1402912 A 20030312; DE 19960242 C1 20010621; EP 1238472 A1 20020911; JP 2003517249 A 20030520; US 2003012291 A1 20030116; US 7042953 B2 20060509
DOCDB simple family (application)
EP 0012118 W 20001201; CN 00816610 A 20001201; DE 19960242 A 19991214; EP 00981330 A 20001201; JP 2001545463 A 20001201; US 15774202 A 20020529