EP1925092A4 - Filtre de demodulation commun pour la reduction de brouillage dans le meme canal, et procedes connexes - Google Patents

Filtre de demodulation commun pour la reduction de brouillage dans le meme canal, et procedes connexes

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Withdrawn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)
English (en)
Other versions
EP1925092A1 (fr
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/fr
Publication of EP1925092A4 publication Critical patent/EP1925092A4/fr
Withdrawn legal-status Critical Current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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Artificial Intelligence (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Noise Elimination (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
EP06790562A 2005-08-23 2006-08-23 Filtre de demodulation commun pour la reduction de brouillage dans le meme canal, et procedes connexes Withdrawn EP1925092A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002516910A CA2516910A1 (fr) 2005-08-23 2005-08-23 Techniques de demodulation conjointe eliminant le brouillage
PCT/CA2006/001379 WO2007022627A1 (fr) 2005-08-23 2006-08-23 Filtre de demodulation commun pour la reduction de brouillage dans le meme canal, et procedes connexes

Publications (2)

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

Family

ID=37770753

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06790562A Withdrawn EP1925092A4 (fr) 2005-08-23 2006-08-23 Filtre de demodulation commun pour la reduction de brouillage dans le meme canal, et procedes connexes
EP06790561A Withdrawn EP1925091A4 (fr) 2005-08-23 2006-08-23 Dispositif de communications hertziennes a filtre de demodulation commun pour la reduction de brouillage dans le meme canal, et procedes connexes

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06790561A Withdrawn EP1925091A4 (fr) 2005-08-23 2006-08-23 Dispositif de communications hertziennes a filtre de demodulation commun pour la reduction de brouillage dans le meme canal, et procedes connexes

Country Status (8)

Country Link
EP (2) EP1925092A4 (fr)
JP (1) JP4845965B2 (fr)
KR (1) KR100979742B1 (fr)
CN (2) CN101292433A (fr)
AU (1) AU2006284391B2 (fr)
BR (1) BRPI0614959A2 (fr)
CA (1) CA2516910A1 (fr)
WO (2) WO2007022626A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7161988B2 (en) 2004-04-12 2007-01-09 The Directv Group, Inc. Method and apparatus for minimizing co-channel interference
US7672285B2 (en) 2004-06-28 2010-03-02 Dtvg Licensing, Inc. Method and apparatus for minimizing co-channel interference by scrambling
US8213553B2 (en) 2004-04-12 2012-07-03 The Directv Group, Inc. Method and apparatus for identifying co-channel interference
US7412209B2 (en) 2004-04-12 2008-08-12 The Directv Group, Inc. Shifted channel characteristics for mitigating co-channel interference
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
JP5080470B2 (ja) 2005-08-26 2012-11-21 ザ・ディレクティービー・グループ・インコーポレイテッド 信号送信のためのスクランブリングコードを決定する方法と装置
KR101610305B1 (ko) * 2009-03-20 2016-04-20 삼성전자주식회사 다중 안테나 시스템에서 셀 간 간섭을 감소시키기 위한 장치 및 방법
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 (ko) * 2009-12-18 2014-02-14 한국전자통신연구원 위치추적 시스템의 수신기
US8938038B2 (en) * 2012-02-02 2015-01-20 Telefonaktiebolaget L M Ericsson (Publ) Extending the set of addressable interferers for interference mitigation
CN103051573B (zh) * 2012-12-12 2016-07-06 锐迪科科技有限公司 Gsm系统中干扰信号消除模块及其实现方法
US8938041B2 (en) * 2012-12-18 2015-01-20 Intel Corporation Techniques for managing interference in multiple channel communications system
AU2014223843B2 (en) * 2013-02-26 2017-06-01 Glowlink Communications Technology, Inc. System for and method of removing unwanted inband signals from a received communication signal
CN105703878B (zh) * 2014-11-28 2019-04-30 联芯科技有限公司 一种序列检测方法及装置
KR102449737B1 (ko) * 2015-06-25 2022-09-30 한국전자통신연구원 동일대역 전이중 송수신기에서 fir 필터를 튜닝하는 방법 및 장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952711A2 (fr) * 1998-04-23 1999-10-27 Lucent Technologies Inc. Estimateur de séquence à maximum de vraisemblance conjointe à description dynamique de canaux
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 (ja) * 1991-07-29 1993-06-18 Oki Electric Ind Co Ltd 適応等化器
IT1293447B1 (it) * 1997-07-14 1999-03-01 Cselt Centro Studi Lab Telecom Procedimento e sistema per la ricezione di segnali digitali
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 (fr) * 1998-04-23 1999-10-27 Lucent Technologies Inc. Estimateur de séquence à maximum de vraisemblance conjointe à description dynamique de canaux
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
WO2007022627A1 (fr) 2007-03-01
JP2009506595A (ja) 2009-02-12
AU2006284391B2 (en) 2009-12-10
EP1925092A1 (fr) 2008-05-28
WO2007022626A1 (fr) 2007-03-01
KR20080036235A (ko) 2008-04-25
AU2006284391A1 (en) 2007-03-01
CN101292432A (zh) 2008-10-22
CA2516910A1 (fr) 2007-02-23
BRPI0614959A2 (pt) 2011-04-26
KR100979742B1 (ko) 2010-09-09
EP1925091A4 (fr) 2009-01-14
EP1925091A1 (fr) 2008-05-28
JP4845965B2 (ja) 2011-12-28
CN101292433A (zh) 2008-10-22

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