EP1925092A4 - Joint demodulation filter for co-channel interference reduction and related methods - Google Patents

Joint demodulation filter for co-channel interference reduction and related methods

Info

Publication number
EP1925092A4
EP1925092A4 EP06790562A EP06790562A EP1925092A4 EP 1925092 A4 EP1925092 A4 EP 1925092A4 EP 06790562 A EP06790562 A EP 06790562A EP 06790562 A EP06790562 A EP 06790562A EP 1925092 A4 EP1925092 A4 EP 1925092A4
Authority
EP
European Patent Office
Prior art keywords
related methods
channel interference
interference reduction
joint demodulation
demodulation filter
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.)
Withdrawn
Application number
EP06790562A
Other languages
German (de)
French (fr)
Other versions
EP1925092A1 (en
Inventor
Zoltan Kemenczy
Huan Wu
Sean Simmons
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 EP1925092A1 publication Critical patent/EP1925092A1/en
Publication of EP1925092A4 publication Critical patent/EP1925092A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
    • 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
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • 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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • 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
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • 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
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03292—Arrangements for operating in conjunction with other apparatus with channel estimation circuitry
    • 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
    • H04L25/03305—Joint sequence estimation and interference removal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
EP06790562A 2005-08-23 2006-08-23 Joint demodulation filter for co-channel interference reduction and related methods Withdrawn EP1925092A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002516910A CA2516910A1 (en) 2005-08-23 2005-08-23 Joint demodulation techniques for interference cancellation
PCT/CA2006/001379 WO2007022627A1 (en) 2005-08-23 2006-08-23 Joint demodulation filter for co-channel interference reduction and related methods

Publications (2)

Publication Number Publication Date
EP1925092A1 EP1925092A1 (en) 2008-05-28
EP1925092A4 true EP1925092A4 (en) 2009-01-14

Family

ID=37770753

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06790562A Withdrawn EP1925092A4 (en) 2005-08-23 2006-08-23 Joint demodulation filter for co-channel interference reduction and related methods
EP06790561A Withdrawn EP1925091A4 (en) 2005-08-23 2006-08-23 Wireless communications device including a joint demodulation filter for co-channel interference reduction and related methods

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06790561A Withdrawn EP1925091A4 (en) 2005-08-23 2006-08-23 Wireless communications device including a joint demodulation filter for co-channel interference reduction and related methods

Country Status (8)

Country Link
EP (2) EP1925092A4 (en)
JP (1) JP4845965B2 (en)
KR (1) KR100979742B1 (en)
CN (2) CN101292432A (en)
AU (1) AU2006284391B2 (en)
BR (1) BRPI0614959A2 (en)
CA (1) CA2516910A1 (en)
WO (2) WO2007022626A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2562664C (en) 2004-04-12 2013-02-12 The Directv Group, Inc. Shifted channel characteristics for mitigating co-channel interference
US7161988B2 (en) 2004-04-12 2007-01-09 The Directv Group, Inc. Method and apparatus for minimizing co-channel interference
US8213553B2 (en) * 2004-04-12 2012-07-03 The Directv Group, Inc. Method and apparatus for identifying co-channel interference
US7672285B2 (en) 2004-06-28 2010-03-02 Dtvg Licensing, Inc. Method and apparatus for minimizing co-channel interference by scrambling
US7639763B2 (en) * 2005-08-23 2009-12-29 Research In Motion Limited Wireless communications device including a joint demodulation filter for co-channel interference reduction and related methods
US7643590B2 (en) 2005-08-23 2010-01-05 Research In Motion Limited Joint demodulation filter for co-channel interference reduction and related methods
KR100952571B1 (en) 2005-08-26 2010-04-12 더 디렉티브 그룹, 인크. Method and apparatus for determining scrambling codes for signal transmission
KR101610305B1 (en) 2009-03-20 2016-04-20 삼성전자주식회사 Apparatus and method for reducing inter-cell interference in multiple input multiple output system
US8433015B2 (en) * 2009-12-03 2013-04-30 Glowlink Communications Technology, Inc. System for and method of removing unwanted inband signals from a received communication signal
KR101363385B1 (en) * 2009-12-18 2014-02-14 한국전자통신연구원 Receiver of Real Time Locating System
US8938038B2 (en) * 2012-02-02 2015-01-20 Telefonaktiebolaget L M Ericsson (Publ) Extending the set of addressable interferers for interference mitigation
CN103051573B (en) * 2012-12-12 2016-07-06 锐迪科科技有限公司 Gsm system disturbs signal cancellation module and its implementation
US8938041B2 (en) 2012-12-18 2015-01-20 Intel Corporation Techniques for managing interference in multiple channel communications system
CN105075132A (en) * 2013-02-26 2015-11-18 长联通讯技术公司 System for and method of removing unwanted inband signals from a received communication signal
CN105703878B (en) * 2014-11-28 2019-04-30 联芯科技有限公司 A kind of sequence detecting method and device
KR102449737B1 (en) * 2015-06-25 2022-09-30 한국전자통신연구원 Method and apparatus for tuning finite impulse response filter in in-band full duplex transceiver

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952711A2 (en) * 1998-04-23 1999-10-27 Lucent Technologies Inc. Joint maximum likelihood sequence estimator with dynamic channel description
US20030118131A1 (en) * 2001-12-20 2003-06-26 Kobylinski Richard A. Joint demodulation using a viterbi equalizer having an adaptive total number of states
US20040192215A1 (en) * 2003-03-28 2004-09-30 Onggosanusi Eko N. Linear single-antenna interference cancellation receiver

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05152894A (en) * 1991-07-29 1993-06-18 Oki Electric Ind Co Ltd Adaptive equalizer
IT1293447B1 (en) * 1997-07-14 1999-03-01 Cselt Centro Studi Lab Telecom PROCEDURE AND SYSTEM FOR RECEPTION OF DIGITAL SIGNALS
US6760388B2 (en) * 2001-12-07 2004-07-06 Qualcomm Incorporated Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems
US7190743B2 (en) * 2002-07-29 2007-03-13 Bae Systems Information And Electronic Systems Integration Inc. Method and apparatus for optimizing tree pruning in a multiuser detector
GB2392065B (en) * 2002-08-15 2004-12-29 Toshiba Res Europ Ltd Signal decoding methods and apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952711A2 (en) * 1998-04-23 1999-10-27 Lucent Technologies Inc. Joint maximum likelihood sequence estimator with dynamic channel description
US20030118131A1 (en) * 2001-12-20 2003-06-26 Kobylinski Richard A. Joint demodulation using a viterbi equalizer having an adaptive total number of states
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
FORNEY G D: "MAXIMUM-LIKELIHOOD SEQUENCE ESTIMATION OF DIGITAL SEQUENCES IN THE PRESENCE OF INTERSYMBOL INTERFERENCE", IEEE TRANSACTIONS ON INFORMATION THEORY, IEEE, US, vol. IT-18, no. 3, 1 May 1972 (1972-05-01), pages 363 - 378, XP000760864, ISSN: 0018-9448, DOI: 10.1109/TIT.1972.1054829 *
See also references of WO2007022627A1 *
UNGERBOECK G: "ADAPTIVE MAXIMUM-LIKELIHOOD RECEIVER FOR CARRIER-MODULATED DATA-TRANSMISSION SYSTEMS", IEEE TRANSACTIONS ON COMMUNICATIONS, IEEE SERVICE CENTER, PISCATAWAY, NJ. USA, vol. COM-22, no. 5, 1 May 1974 (1974-05-01), pages 624 - 636, XP000670408, ISSN: 0090-6778, DOI: 10.1109/TCOM.1974.1092267 *

Also Published As

Publication number Publication date
BRPI0614959A2 (en) 2011-04-26
AU2006284391A1 (en) 2007-03-01
WO2007022626A1 (en) 2007-03-01
EP1925091A1 (en) 2008-05-28
EP1925091A4 (en) 2009-01-14
CN101292432A (en) 2008-10-22
KR100979742B1 (en) 2010-09-09
JP4845965B2 (en) 2011-12-28
KR20080036235A (en) 2008-04-25
AU2006284391B2 (en) 2009-12-10
CN101292433A (en) 2008-10-22
WO2007022627A1 (en) 2007-03-01
EP1925092A1 (en) 2008-05-28
CA2516910A1 (en) 2007-02-23
JP2009506595A (en) 2009-02-12

Similar Documents

Publication Publication Date Title
EP1925092A4 (en) Joint demodulation filter for co-channel interference reduction and related methods
EP1889371A4 (en) Method and system for interference reduction
EP1902527A4 (en) Method and system for mitigating co-channel interference
EP1819411A4 (en) Improved rotary separator and method
IL192001A0 (en) Means and methods for mediating protein interference
EP1872811A4 (en) Hemodialyzer and method of hemodialysis
EP1799302A4 (en) Methods and devices for renal nerve blocking
EP1929803A4 (en) Methods and systems to mitigate inter-cell interference
IL186599A0 (en) Methods for treating and preventing fibrosis
GB0517210D0 (en) Demodulation apparatus
GB2445115B (en) Articulating bail assembly and method
EP2145666A4 (en) Sulfur-type gas removing filter and method for removing sulfur-type gas using the same
EP1792477A4 (en) Noise filter for video processing
GB0508309D0 (en) Linear filter equalizer
AP2008004427A0 (en) Filtration method and installation
HK1092616A1 (en) Method of demodulating ofdm-type signals in the presence of strong co- channel interference signals
PL1843840T3 (en) Zinc oxide-based sorbents and process for preparing and using same
EP1856711A4 (en) Pdp filter and manufacturing method thereof
ZA200804447B (en) A fabric filter with fluidised dust-bed, and a method of maintaining it
GB2397441B (en) Noise filter
PL380664A1 (en) Filter media
GB2414599B (en) Filter
EP1954626A4 (en) Multifunctional nanostructure and method
EP1918811A4 (en) Media processing method and media processing program
EP1966325A4 (en) Naphthalocyanine compound and method for producing the same

Legal Events

Date Code Title Description
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

17P Request for examination filed

Effective date: 20080317

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

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

A4 Supplementary search report drawn up and despatched

Effective date: 20081217

RIC1 Information provided on ipc code assigned before grant

Ipc: H04L 25/02 20060101ALI20081211BHEP

Ipc: H04B 1/16 20060101ALI20081211BHEP

Ipc: H03M 13/41 20060101ALI20081211BHEP

Ipc: H04B 1/10 20060101AFI20070515BHEP

17Q First examination report despatched

Effective date: 20110217

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BLACKBERRY LIMITED

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BLACKBERRY LIMITED

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20150303