EP1922815A4 - Joint space-time optimum filter (jstof) using cholesky and eigenvalue decompositions - Google Patents

Joint space-time optimum filter (jstof) using cholesky and eigenvalue decompositions

Info

Publication number: EP1922815A4
Authority: EP; European Patent Office
Prior art keywords: jstof; cholesky; joint space; optimum filter; time optimum
Prior art date: 2005-08-15
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP06775103A

Other languages

German (de)

French (fr)

Other versions

EP1922815A1 (en

Inventor

Huan Wu

Sean Simmons

Zoltan Kemenczy

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

BlackBerry Ltd

Original Assignee

Research in Motion Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2005-08-15

Filing date

2006-08-14

Publication date

2008-10-01

2006-08-14 Application filed by Research in Motion Ltd filed Critical Research in Motion Ltd

2008-05-21 Publication of EP1922815A1 publication Critical patent/EP1922815A1/en

2008-10-01 Publication of EP1922815A4 publication Critical patent/EP1922815A4/en

Status Withdrawn legal-status Critical Current

Links

238000000354 decomposition reaction Methods 0.000 title 1

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
- H04L1/0631—Receiver arrangements
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
- H04L25/0244—Channel estimation channel estimation algorithms using matrix methods with inversion
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
- H04L25/0246—Channel estimation channel estimation algorithms using matrix methods with factorisation
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
- H04L25/0248—Eigen-space methods
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03178—Arrangements involving sequence estimation techniques

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Power Engineering (AREA)
Physics & Mathematics (AREA)
Mathematical Physics (AREA)
Radio Transmission System (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Filters That Use Time-Delay Elements (AREA)
Noise Elimination (AREA)

EP06775103A 2005-08-15 2006-08-14 Joint space-time optimum filter (jstof) using cholesky and eigenvalue decompositions Withdrawn EP1922815A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
CA002515867A CA2515867A1 (en)	2005-08-15	2005-08-15	Implementation of joint space-time optimum filters (jstof) using cholesky and eigenvalue decompositions
PCT/CA2006/001328 WO2007019683A1 (en)	2005-08-15	2006-08-14	Joint space-time optimum filter (jstof) using cholesky and eigenvalue decompositions

Publications (2)

Publication Number	Publication Date
EP1922815A1 EP1922815A1 (en)	2008-05-21
EP1922815A4 true EP1922815A4 (en)	2008-10-01

Family

ID=37744680

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP06775103A Withdrawn EP1922815A4 (en)	2005-08-15	2006-08-14	Joint space-time optimum filter (jstof) using cholesky and eigenvalue decompositions

Country Status (7)

Country	Link
EP (1)	EP1922815A4 (en)
JP (1)	JP2009505530A (en)
KR (1)	KR20080036219A (en)
CN (1)	CN101283511B (en)
BR (1)	BRPI0614859A2 (en)
CA (1)	CA2515867A1 (en)
WO (1)	WO2007019683A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2445150B1 (en)	2010-10-19	2013-12-04	ST-Ericsson SA	Process for performing a QR decomposition of a channel matrix in a MIMO wireless communication system, and receiver for doing the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6314147B1 (en) *	1997-11-04	2001-11-06	The Board Of Trustees Of The Leland Stanford Junior University	Two-stage CCI/ISI reduction with space-time processing in TDMA cellular networks
US20040192215A1 (en) *	2003-03-28	2004-09-30	Onggosanusi Eko N.	Linear single-antenna interference cancellation receiver

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6714527B2 (en) *	1999-09-21	2004-03-30	Interdigital Techology Corporation	Multiuser detector for variable spreading factors
EP1152549B1 (en) *	2000-05-05	2005-03-30	Lucent Technologies Inc.	Radio communications system
TW540200B (en) *	2000-11-09	2003-07-01	Interdigital Tech Corp	Single user detection
CN1376388A (en) *	2001-03-22	2002-10-30	赵旭军	Technology for making salted yolk
US20030142762A1 (en) *	2002-01-11	2003-07-31	Burke Joseph P.	Wireless receiver method and apparatus using space-cover-time equalization
JP4806170B2 (en) *	2003-06-19	2011-11-02	三星電子株式会社	Apparatus and method for detecting and selectively filtering co-channel interference
US7801248B2 (en) *	2004-11-19	2010-09-21	Qualcomm Incorporated	Interference suppression with virtual antennas

2005
- 2005-08-15 CA CA002515867A patent/CA2515867A1/en not_active Abandoned
2006
- 2006-08-14 WO PCT/CA2006/001328 patent/WO2007019683A1/en not_active Ceased
- 2006-08-14 EP EP06775103A patent/EP1922815A4/en not_active Withdrawn
- 2006-08-14 KR KR1020087006282A patent/KR20080036219A/en not_active Withdrawn
- 2006-08-14 CN CN200680037623XA patent/CN101283511B/en not_active Expired - Fee Related
- 2006-08-14 BR BRPI0614859-0A patent/BRPI0614859A2/en not_active IP Right Cessation
- 2006-08-14 JP JP2008526341A patent/JP2009505530A/en not_active Ceased

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6314147B1 (en) *	1997-11-04	2001-11-06	The Board Of Trustees Of The Leland Stanford Junior University	Two-stage CCI/ISI reduction with space-time processing in TDMA cellular networks
US20040192215A1 (en) *	2003-03-28	2004-09-30	Onggosanusi Eko N.	Linear single-antenna interference cancellation receiver

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
GREGORY E BOTTOMLEY ET AL: "Unification of MLSE Receivers and Extension to Time-Varying Channels", IEEE TRANSACTIONS ON COMMUNICATIONS, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 46, no. 4, 1 April 1998 (1998-04-01), XP011009143, ISSN: 0090-6778 *
JAN C OLIVIER ET AL: "Joint Optimization of FIR Prefilter and Channel Estimate for Sequence Estimation", IEEE TRANSACTIONS ON COMMUNICATIONS, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 50, no. 9, 1 September 2002 (2002-09-01), XP011071006, ISSN: 0090-6778 *
See also references of WO2007019683A1 *

Also Published As

Publication number	Publication date
CA2515867A1 (en)	2007-02-15
CN101283511B (en)	2012-03-28
BRPI0614859A2 (en)	2011-04-19
CN101283511A (en)	2008-10-08
EP1922815A1 (en)	2008-05-21
WO2007019683A1 (en)	2007-02-22
KR20080036219A (en)	2008-04-25
JP2009505530A (en)	2009-02-05

Legal Events

Date	Code	Title	Description
2008-04-18	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2008-05-21	17P	Request for examination filed	Effective date: 20080313
2008-05-21	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
2008-05-21	AX	Request for extension of the european patent	Extension state: AL BA HR MK RS
2008-10-01	A4	Supplementary search report drawn up and despatched	Effective date: 20080902
2008-10-01	RIC1	Information provided on ipc code assigned before grant	Ipc: H04L 1/06 20060101ALI20080827BHEP Ipc: H04L 25/02 20060101ALI20080827BHEP Ipc: H04B 1/10 20060101AFI20070426BHEP
2009-01-14	17Q	First examination report despatched	Effective date: 20081211
2010-11-19	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN
2010-12-22	18W	Application withdrawn	Effective date: 20101117

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