EP1922816A4 - Wireless communications device including a joint space-time optimum filter (jstof) using cholesky and eigenvalue decompositions - Google Patents

Wireless communications device including a joint space-time optimum filter (jstof) using cholesky and eigenvalue decompositions

Info

Publication number
EP1922816A4
EP1922816A4 EP06790540A EP06790540A EP1922816A4 EP 1922816 A4 EP1922816 A4 EP 1922816A4 EP 06790540 A EP06790540 A EP 06790540A EP 06790540 A EP06790540 A EP 06790540A EP 1922816 A4 EP1922816 A4 EP 1922816A4
Authority
EP
European Patent Office
Prior art keywords
jstof
cholesky
device including
wireless communications
communications device
Prior art date
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.)
Ceased
Application number
EP06790540A
Other languages
German (de)
French (fr)
Other versions
EP1922816A2 (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.)
Filing date
Publication date
Application filed by Research in Motion Ltd filed Critical Research in Motion Ltd
Publication of EP1922816A2 publication Critical patent/EP1922816A2/en
Publication of EP1922816A4 publication Critical patent/EP1922816A4/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • 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
    • H04L25/0212—Channel estimation of impulse response
    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/109—Means associated with receiver for limiting or suppressing noise or interference by improving strong signal performance of the receiver when strong unwanted signals are present at the receiver input
EP06790540A 2005-08-15 2006-08-14 Wireless communications device including a joint space-time optimum filter (jstof) using cholesky and eigenvalue decompositions Ceased EP1922816A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002515932A CA2515932A1 (en) 2005-08-15 2005-08-15 Implementation of joint space-time optimum filters (jstof) using cholesky and eigenvalue decompositions
PCT/CA2006/001322 WO2007019679A2 (en) 2005-08-15 2006-08-14 Wireless communications device including a joint space-time optimum filter (jstof) using cholesky and eigenvalue decompositions

Publications (2)

Publication Number Publication Date
EP1922816A2 EP1922816A2 (en) 2008-05-21
EP1922816A4 true EP1922816A4 (en) 2008-10-01

Family

ID=37744685

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06790540A Ceased EP1922816A4 (en) 2005-08-15 2006-08-14 Wireless communications device including a joint space-time optimum filter (jstof) using cholesky and eigenvalue decompositions

Country Status (8)

Country Link
EP (1) EP1922816A4 (en)
JP (1) JP2009505526A (en)
KR (1) KR20080036223A (en)
CN (1) CN101283516B (en)
AU (1) AU2006281941A1 (en)
BR (1) BRPI0614356A2 (en)
CA (1) CA2515932A1 (en)
WO (1) WO2007019679A2 (en)

Families Citing this family (4)

* 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
WO2012104675A1 (en) * 2011-02-01 2012-08-09 Research In Motion Limited Downlink multi-user interference alignment scheme
CA2826240C (en) 2011-02-01 2017-05-30 Research In Motion Limited Mixed rank downlink multi-user interference alignment scheme
CN104244265B (en) * 2013-06-13 2018-01-09 北京邮电大学 The communication means and system that D2D communications coexist with cellular communication under multiple antennas scene

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
CN1152504C (en) * 2001-10-22 2004-06-02 信息产业部电信传输研究所 Multipath searching and channel evaluating method based on digital matched filter
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

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 WO2007019679A2 *

Also Published As

Publication number Publication date
CN101283516B (en) 2011-11-23
JP2009505526A (en) 2009-02-05
CA2515932A1 (en) 2007-02-15
WO2007019679A2 (en) 2007-02-22
KR20080036223A (en) 2008-04-25
BRPI0614356A2 (en) 2011-03-22
CN101283516A (en) 2008-10-08
EP1922816A2 (en) 2008-05-21
AU2006281941A1 (en) 2007-02-22
WO2007019679A3 (en) 2007-11-08

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