EP1566911A3

Reduced complexity multi-turbo multi-user detector

Abstract

Described herein is a reduced complexity Turbo multi-user detector (MUD) processing system for use in multiple access communications channels that decreases the likelihood of improper decoding of the final values of interest and decreases the computation complexity for each iteration. The processing system allows for a reduction in the number of iterations performed and lowers the overall complexity without negatively impacting performance. In one form the present invention comprises a multi-user detector coupled to two or more decoder sections, two ore more recoders, and a compare and adjust section in such a manner that data flows iteratively to correct for errors in a computationally efficient manner.

EP1566911A3, drawing sheet 1 — Sheet 1 of 1

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Citations
Reference	Relation	Cited during
WANG HAIFENG ET AL: "Interference cancellation based multiuser receiver with channel decoding and decision feedback in asynchronous cdma systems", GLOBAL TELECOMMUNICATIONS CONFERENCE - GLOBECOM '99, vol. 1A, 5 December 1999 (1999-12-05), pages 462 - 466, XP010373344	Non-patent	Search report
WANG HAIFENG ET AL: "Novel iterative multiuser receiver for asynchronous CDMA systems in Rayleigh fading channels", PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, 1998. THE NINTH IEEE INTERNATIONAL SYMPOSIUM ON BOSTON, MA, USA 8-11 SEPT. 1998, NEW YORK, NY, USA,IEEE, US, vol. 1, 8 September 1998 (1998-09-08), pages 208 - 212, XP010314779, ISBN: 0-7803-4872-9	Non-patent	Search report
CHAN A M ET AL: "A class of asymptotically optimum iterated-decision multiuser detectors", 2001 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING. PROCEEDINGS. (ICASSP). SALT LAKE CITY, UT, MAY 7 - 11, 2001, IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (ICASSP), NEW YORK, NY : IEEE, US, vol. VOL. 1 OF 6, 7 May 2001 (2001-05-07), pages 2265 - 2268, XP010803327, ISBN: 0-7803-7041-4	Non-patent	Search report
QIN Z ET AL: "Iterative multiuser detection for serially concatenated convolutionally coded asynchronous CDMA", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 36, no. 10, 11 May 2000 (2000-05-11), pages 898 - 899, XP006015229, ISSN: 0013-5194	Non-patent	Search report

46 members in 7 offices

This recordMember, by publication datePriority claim

Priority claims10

Priority claims
Document	Office	Kind	Date
546330P	United States of America	–	2004-02-20
54633004	United States of America	P	2004-02-20
54633004	United States of America	P	2004-02-20
818536	United States of America	–	2004-04-05
81853604	United States of America	A	2004-04-05
81853604	United States of America	A	2004-04-05
546330P	–	–	–
818536	–	–	–
US20040546330P	–	–	–
US20040818536	–	–	–

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Document	Office	Kind
US2003138035A1	United States of America	A1	2003-07-24
US2003138065A1	United States of America	A1	2003-07-24
US2003193966A1	United States of America	A1	2003-10-16
US2003204808A1	United States of America	A1	2003-10-30
WO2004012341A1	World Intellectual Property Organization (WIPO)	A1	2004-02-05
AU2003234633A1	Australia	A1	2004-02-16
US6704376B2	United States of America	B2	2004-03-09
US2004234007A1	United States of America	A1	2004-11-25
US6831574B1	United States of America	B1	2004-12-14
US6839390B2	United States of America	B2	2005-01-04
EP1521387A2	European Patent Office (EPO)	A2	2005-04-06
US2005097423A1	United States of America	A1	2005-05-05
WO2005046060A1	World Intellectual Property Organization (WIPO)	A1	2005-05-19
WO2005046061A1	World Intellectual Property Organization (WIPO)	A1	2005-05-19
AU2003282602A1	Australia	A1	2005-05-26
AU2003284107A1	Australia	A1	2005-05-26
EP1540823A1	European Patent Office (EPO)	A1	2005-06-15
EP1566911A2	European Patent Office (EPO)	A2	2005-08-24
US2005185729A1	United States of America	A1	2005-08-25
EP1540823A4	European Patent Office (EPO)	A4	2005-09-07
US6947506B2	United States of America	B2	2005-09-20
JP2005535184A	Japan	A	2005-11-17
US6967598B2	United States of America	B2	2005-11-22
US6981203B2	United States of America	B2	2005-12-27
WO2005125137A2	World Intellectual Property Organization (WIPO)	A2	2005-12-29
WO2005125137A3	World Intellectual Property Organization (WIPO)	A3	2006-05-04
US7092464B2	United States of America	B2	2006-08-15
EP1698057A1	European Patent Office (EPO)	A1	2006-09-06
EP1566911A3This record	European Patent Office (EPO)	A3	2006-11-02
EP1521387A3	European Patent Office (EPO)	A3	2007-03-07
EP1540823B1	European Patent Office (EPO)	B1	2008-01-16
AT384355T	Austria	T	2008-02-15
ATE384355T1	Austria	T1	2008-02-15
DE60318726D1	Germany	D1	2008-03-06
US7350136B2	United States of America	B2	2008-03-25
EP1540823B9	European Patent Office (EPO)	B9	2008-06-11
JP2008245269A	Japan	A	2008-10-09
DE60318726T2	Germany	T2	2009-01-15
EP1521387B1	European Patent Office (EPO)	B1	2009-12-02
AT450944T	Austria	T	2009-12-15
ATE450944T1	Austria	T1	2009-12-15
DE602004024361D1	Germany	D1	2010-01-14
JP4923263B2	Japan	B2	2012-04-25
EP1698057A4	European Patent Office (EPO)	A4	2012-06-20
EP1566911B1	European Patent Office (EPO)	B1	2012-10-31
EP1698057B1	European Patent Office (EPO)	B1	2013-12-11

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2024-10-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
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2024-07-02	Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119	R119	DE
2023-06-21	Opt-out of the competence of the unified patent court (upc) registeredP01	P01	EP
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2020-10-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
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2019-02-28	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2017-12-21	Fee paymentPLFP	PLFP	FR
2016-12-22	Fee paymentPLFP	PLFP	FR
2015-12-21	Fee paymentPLFP	PLFP	FR
2014-07-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2014-05-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2014-04-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2013-11-28	No opposition filed against granted patent, or epo opposition proceedings concluded without decisionGrantedR097	R097	DE
2013-10-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2013-10-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
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2013-07-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2013-07-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2013-07-31	Patent ceasedCeasedPL	PL	CH
2013-06-28	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2013-05-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2013-05-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
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2013-04-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
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2013-04-03	Discontinued in the netherlands as no translation has been filedVDEP	VDEP	NL
2013-03-25	Invalidated european patentMG4D	MG4D	LT
2013-03-15	Deletion acc. to par. 5 (withdrawal of the translation of the ep patent)MK05	MK05	AT
2012-12-27	Dpma publication of mentioned ep patent grantGrantedR096	R096	DE
2012-12-05	European patents granted designating irelandGrantedFG4D	FG4D	IE
2012-11-15	Reference to at number (ep patent validated in austria)REF	REF	AT
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Reduced complexity multi-turbo multi-user detector

Abstract

Term

Priority claims10

Members46

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