EP 1556984 A2 20050727 - DATA DETECTION AND DEMODULATION FOR WIRELESS COMMUNICATION SYSTEMS
Title (en)
DATA DETECTION AND DEMODULATION FOR WIRELESS COMMUNICATION SYSTEMS
Title (de)
DATENDETEKTION UND DATENDEMODULATION FÜR DRAHTLOSE KOMMUNIKATIONSSYSTEME
Title (fr)
DETECTION ET DEMODULATION DE DONNEES POUR SYSTEMES DE COMMUNICATION SANS FILS
Publication
Application
Priority
- US 0334568 W 20031024
- US 42130902 P 20021025
- US 43262602 P 20021210
- US 69283303 A 20031023
Abstract (en)
[origin: WO2004038989A2] Techniques for detecting and demodulating data transmissions in wireless communication systems. In one aspect, a decision-directed detector detects for data transmissions in a received signal by utilizing received data symbols as well as received pilot symbols. The decision-directed detector may be designed to perform differential detection in the frequency domain or coherent detection in the time domain, and may be used with multi-carrier modulation (e.g., OFDM). In another aspect, an adaptive threshold is used to perform detection of received data transmissions. A threshold may be determined for each data transmission hypothesized to have been received. The threshold may be computed, for example, based on the signal plus noise energy of the hypothesized data transmission.
IPC 1-7
IPC 8 full level
H04B 7/08 (2006.01); H04J 99/00 (2009.01); H04L 1/00 (2006.01); H04L 1/06 (2006.01); H04L 1/08 (2006.01); H04L 25/02 (2006.01); H04L 25/03 (2006.01); H04L 27/00 (2006.01); H04L 27/26 (2006.01); H04B 7/005 (2006.01); H04B 7/06 (2006.01); H04L 1/16 (2006.01); H04Q 7/38 (2006.01); H04W 28/20 (2009.01); H04W 52/50 (2009.01)
CPC (source: EP KR US)
H04B 7/0854 (2013.01 - EP); H04L 1/0017 (2013.01 - EP); H04L 1/06 (2013.01 - KR); H04L 25/0242 (2013.01 - EP); H04L 25/03343 (2013.01 - EP); H04L 27/0012 (2013.01 - EP); H04L 27/26 (2013.01 - KR); H04L 27/2602 (2013.01 - EP KR US); H04L 27/261 (2013.01 - EP US); H04L 27/2647 (2013.01 - EP); H04B 7/0669 (2013.01 - EP); H04B 7/0697 (2013.01 - EP); H04L 1/0056 (2013.01 - EP); H04L 1/0071 (2013.01 - EP); H04L 25/0224 (2013.01 - EP); H04L 25/0226 (2013.01 - EP); H04L 27/2601 (2013.01 - EP); H04W 28/20 (2013.01 - EP); H04W 52/50 (2013.01 - EP)
Citation (search report)
See references of WO 2004038989A2
Citation (examination)
EP 1126673 A2 20010822 - THOMSON LICENSING INC [FR]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004038989 A2 20040506; WO 2004038989 A3 20040708; AU 2003285112 A1 20040513; AU 2003285112 B2 20090402; AU 2009202681 A1 20090806; BR 0315664 A 20050830; CA 2500849 A1 20040506; CA 2500849 C 20121002; CN 102014100 A 20110413; CN 102014100 B 20130306; CN 1708935 A 20051214; CN 1708935 B 20110622; EP 1556984 A2 20050727; EP 2262149 A2 20101215; EP 2262149 A3 20130508; EP 2262149 B1 20180829; IL 202856 A0 20110731; JP 2006504342 A 20060202; JP 2010213309 A 20100924; JP 4981253 B2 20120718; JP 5307070 B2 20131002; KR 101035765 B1 20110520; KR 20050071576 A 20050707; MX PA05004311 A 20050803; TW 200501656 A 20050101; TW I341102 B 20110421
DOCDB simple family (application)
US 0334568 W 20031024; AU 2003285112 A 20031024; AU 2009202681 A 20090702; BR 0315664 A 20031024; CA 2500849 A 20031024; CN 200380102068 A 20031024; CN 201010616322 A 20031024; EP 03779427 A 20031024; EP 10176291 A 20031024; IL 20285609 A 20091220; JP 2004547251 A 20031024; JP 2010094016 A 20100415; KR 20057006446 A 20031024; MX PA05004311 A 20031024; TW 92129768 A 20031024