BRPI0614959A2 - dispositivo de comunicações sem fio incluindo um filtro de demodulação conjunto para redução de interferência de co-canal e métodos relacionados - Google Patents

dispositivo de comunicações sem fio incluindo um filtro de demodulação conjunto para redução de interferência de co-canal e métodos relacionados Download PDF

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Publication number
BRPI0614959A2
BRPI0614959A2 BRPI0614959-6A BRPI0614959A BRPI0614959A2 BR PI0614959 A2 BRPI0614959 A2 BR PI0614959A2 BR PI0614959 A BRPI0614959 A BR PI0614959A BR PI0614959 A2 BRPI0614959 A2 BR PI0614959A2
Authority
BR
Brazil
Prior art keywords
signal
channel
filter
desired signal
cir
Prior art date
Application number
BRPI0614959-6A
Other languages
English (en)
Portuguese (pt)
Inventor
Huan Wu
Zoltan Kemenczy
Sean Simmons
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 BRPI0614959A2 publication Critical patent/BRPI0614959A2/pt

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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)
BRPI0614959-6A 2005-08-23 2006-08-23 dispositivo de comunicações sem fio incluindo um filtro de demodulação conjunto para redução de interferência de co-canal e métodos relacionados BRPI0614959A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA002516910A CA2516910A1 (en) 2005-08-23 2005-08-23 Joint demodulation techniques for interference cancellation
CA2,516,910 2005-08-23
PCT/CA2006/001378 WO2007022626A1 (en) 2005-08-23 2006-08-23 Wireless communications device including a joint demodulation filter for co-channel interference reduction and related methods

Publications (1)

Publication Number Publication Date
BRPI0614959A2 true BRPI0614959A2 (pt) 2011-04-26

Family

ID=37770753

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0614959-6A BRPI0614959A2 (pt) 2005-08-23 2006-08-23 dispositivo de comunicações sem fio incluindo um filtro de demodulação conjunto para redução de interferência de co-canal e métodos relacionados

Country Status (8)

Country Link
EP (2) EP1925092A4 (de)
JP (1) JP4845965B2 (de)
KR (1) KR100979742B1 (de)
CN (2) CN101292432A (de)
AU (1) AU2006284391B2 (de)
BR (1) BRPI0614959A2 (de)
CA (1) CA2516910A1 (de)
WO (2) WO2007022627A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007533263A (ja) 2004-04-12 2007-11-15 ザ・ディレクティービー・グループ・インコーポレイテッド 同一チャネル干渉を緩和するためのシフトチャネル特性
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
US7643590B2 (en) * 2005-08-23 2010-01-05 Research In Motion Limited Joint demodulation filter for co-channel interference reduction and related methods
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
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
CN105075132A (zh) * 2013-02-26 2015-11-18 长联通讯技术公司 从接收到的通信信号中去除不必要带内信号的系统及方法
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

Family Cites Families (8)

* 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
US6144710A (en) * 1998-04-23 2000-11-07 Lucent Technologies, Inc. Joint maximum likelihood sequence estimator with dynamic channel description
US6760388B2 (en) * 2001-12-07 2004-07-06 Qualcomm Incorporated Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems
US6714607B2 (en) * 2001-12-20 2004-03-30 Sbc Technology Resources, Inc. Joint demodulation using a viterbi equalizer having an adaptive total number of states
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
US7295636B2 (en) * 2003-03-28 2007-11-13 Texas Instruments Incorporated Linear single-antenna interference cancellation receiver

Also Published As

Publication number Publication date
EP1925091A1 (de) 2008-05-28
AU2006284391A1 (en) 2007-03-01
EP1925092A4 (de) 2009-01-14
JP2009506595A (ja) 2009-02-12
CN101292433A (zh) 2008-10-22
JP4845965B2 (ja) 2011-12-28
AU2006284391B2 (en) 2009-12-10
WO2007022626A1 (en) 2007-03-01
CN101292432A (zh) 2008-10-22
CA2516910A1 (en) 2007-02-23
KR100979742B1 (ko) 2010-09-09
WO2007022627A1 (en) 2007-03-01
EP1925091A4 (de) 2009-01-14
EP1925092A1 (de) 2008-05-28
KR20080036235A (ko) 2008-04-25

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A ANUIDADE.

B25D Requested change of name of applicant approved

Owner name: BLACKBERRY LIMITED (CA)

B25G Requested change of headquarter approved

Owner name: BLACKBERRY LIMITED (CA)

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2320 DE 23-06-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.

B15K Others concerning applications: alteration of classification

Ipc: H04B 1/10 (2006.01), H04L 1/00 (2006.01), H04L 1/2