EP 2130341 A2 20091209 - QUADRATURE IMBALANCE MITIGATION USING UNBIASED TRAINING SEQUENCES
Title (en)
QUADRATURE IMBALANCE MITIGATION USING UNBIASED TRAINING SEQUENCES
Title (de)
QUADRATURUNGLEICHGEWICHTSMINDERUNG UNTER VERWENDUNG VON NICHT VORBETONTEN TRAININGSSEQUENZEN
Title (fr)
ATTÉNUATION D'UN DÉSÉQUILIBRE EN QUADRATURE À L'AIDE DE SÉQUENCES D'APPRENTISSAGE SANS BIAIS
Publication
Application
Priority
- US 2008056327 W 20080307
- US 68456607 A 20070309
- US 75571907 A 20070530
- US 85380807 A 20070911
- US 85380907 A 20070911
Abstract (en)
[origin: WO2008112585A2] A system and method are provided for transmitting a rotating training sequence. A rotating training signal is generated in quadrature modulation transmitter. The rotating training signal includes training information sent via an in-phase (I) modulation path, as well as training information sent via a quadrature (Q) modulation path. The rotating training signal may be generated by initially sending training information via the I modulation path, and subsequently sending training information via the Q modulation path. The training information sent via the I modulation path may include a first symbol having a reference phase (e.g., 0 degrees or 180 degrees). Then, the training information sent via the Q modulation path would include a second symbol having a phase that is ± 90 from the reference phase.
IPC 8 full level
H04L 27/26 (2006.01)
CPC (source: EP KR)
H04L 25/05 (2013.01 - KR); H04L 27/26 (2013.01 - KR); H04L 27/261 (2013.01 - EP); H04L 27/3863 (2013.01 - EP); H04L 25/0226 (2013.01 - EP); H04L 2027/0016 (2013.01 - EP)
Citation (search report)
See references of WO 2008112587A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008112585 A2 20080918; WO 2008112585 A3 20090205; BR PI0808669 A2 20140826; BR PI0808676 A2 20140812; CA 2678126 A1 20080918; CA 2678126 C 20130625; CA 2678592 A1 20080918; CA 2678592 C 20130618; CA 2790073 A1 20080918; CA 2790073 C 20160112; EP 2130340 A2 20091209; EP 2130341 A2 20091209; JP 2010521123 A 20100617; JP 2010521124 A 20100617; JP 2013176085 A 20130905; JP 5123324 B2 20130123; JP 5290209 B2 20130918; JP 5726939 B2 20150603; KR 101075288 B1 20111019; KR 101109797 B1 20120406; KR 20090118114 A 20091117; KR 20090119002 A 20091118; TW 200901692 A 20090101; TW 200904093 A 20090116; TW I393399 B 20130411; TW I446758 B 20140721; WO 2008112587 A2 20080918; WO 2008112587 A3 20090205
DOCDB simple family (application)
US 2008056321 W 20080307; BR PI0808669 A 20080307; BR PI0808676 A 20080307; CA 2678126 A 20080307; CA 2678592 A 20080307; CA 2790073 A 20080307; EP 08731751 A 20080307; EP 08731756 A 20080307; JP 2009553706 A 20080307; JP 2009553707 A 20080307; JP 2013066443 A 20130327; KR 20097021104 A 20080307; KR 20097021111 A 20080307; TW 97108424 A 20080310; TW 97108425 A 20080310; US 2008056327 W 20080307