[go: up one dir, main page]

WO2007019679A3 - Appareil de radiocommunication a filtre jstof utilisant les decompositions de cholesky et des valeurs propres - Google Patents

Appareil de radiocommunication a filtre jstof utilisant les decompositions de cholesky et des valeurs propres Download PDF

Info

Publication number
WO2007019679A3
WO2007019679A3 PCT/CA2006/001322 CA2006001322W WO2007019679A3 WO 2007019679 A3 WO2007019679 A3 WO 2007019679A3 CA 2006001322 W CA2006001322 W CA 2006001322W WO 2007019679 A3 WO2007019679 A3 WO 2007019679A3
Authority
WO
WIPO (PCT)
Prior art keywords
channel
cholesky
space
communications device
wireless communications
Prior art date
Application number
PCT/CA2006/001322
Other languages
English (en)
Other versions
WO2007019679A2 (fr
Inventor
Huan Wu
Sean Simmons
Zoltan Kemenczy
Original Assignee
Research In Motion Ltd
Huan Wu
Sean Simmons
Zoltan Kemenczy
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, Huan Wu, Sean Simmons, Zoltan Kemenczy filed Critical Research In Motion Ltd
Priority to CN2006800377529A priority Critical patent/CN101283516B/zh
Priority to CA002619117A priority patent/CA2619117A1/fr
Priority to AU2006281941A priority patent/AU2006281941A1/en
Priority to EP06790540A priority patent/EP1922816A4/fr
Priority to BRPI0614356-3A priority patent/BRPI0614356A2/pt
Priority to JP2008526337A priority patent/JP2009505526A/ja
Publication of WO2007019679A2 publication Critical patent/WO2007019679A2/fr
Publication of WO2007019679A3 publication Critical patent/WO2007019679A3/fr

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
  • Noise Elimination (AREA)

Abstract

La présente invention concerne un appareil de radiocommunication réunissant un émetteur et un récepteur. Ce récepteur comporte un filtre devant atténuer les perturbations entre co-canaux. Ce récepteur comporte également un circuit filtre spatiotemporel multicanal qui filtre n parties de signal qui ont été séparées d'un signal de communications par une estimation conjointe des poids des filtres spatiotemporels et des réponses impulsionnelles multicanal (CIR) sur la base de décompositions de Cholesky et de décompositions de valeurs propres. Le filtre comprend enfin un circuit filtre accordé multicanal recevant des signaux multicanal provenant du circuit filtre spatiotemporel multicanal et dont la réponse de filtre est fournie par un calcul de réponse impulsionnelle multicanal à partir du circuit filtre spatiotemporel.
PCT/CA2006/001322 2005-08-15 2006-08-14 Appareil de radiocommunication a filtre jstof utilisant les decompositions de cholesky et des valeurs propres WO2007019679A2 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN2006800377529A CN101283516B (zh) 2005-08-15 2006-08-14 包括使用乔列斯基和特征值分解的联合空时最优滤波器的无线通信设备
CA002619117A CA2619117A1 (fr) 2005-08-15 2006-08-14 Appareil de radiocommunication a filtre jstof utilisant les decompositions de cholesky et des valeurs propres
AU2006281941A AU2006281941A1 (en) 2005-08-15 2006-08-14 Wireless communications device including a joint space-time optimum filter (JSTOF) using Cholesky and eigenvalue decompositions
EP06790540A EP1922816A4 (fr) 2005-08-15 2006-08-14 Appareil de radiocommunication a filtre jstof utilisant les decompositions de cholesky et des valeurs propres
BRPI0614356-3A BRPI0614356A2 (pt) 2005-08-15 2006-08-14 dispositivo de comunicações sem fio que inclui um filtro ótimo de espaço-tempo conjunto (jstof) usando decomposições de cholesky e de autovalor
JP2008526337A JP2009505526A (ja) 2005-08-15 2006-08-14 コレスキー分解および固有値分解を使用する統合型時空間最適フィルタ（ｊｓｔｏｆ）を含む無線通信デバイス

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2,515,932 2005-08-15
CA002515932A CA2515932A1 (fr) 2005-08-15 2005-08-15 Application de filtres optimaux combines espace- temps (jstof) utilisant des decompositions de cholesky et en valeurs propres

Publications (2)

Publication Number Publication Date
WO2007019679A2 WO2007019679A2 (fr) 2007-02-22
WO2007019679A3 true WO2007019679A3 (fr) 2007-11-08

Family

ID=37744685

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2006/001322 WO2007019679A2 (fr) 2005-08-15 2006-08-14 Appareil de radiocommunication a filtre jstof utilisant les decompositions de cholesky et des valeurs propres

Country Status (8)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2445150B1 (fr) 2010-10-19 2013-12-04 ST-Ericsson SA Procédé pour exécuter une décomposition QR de matrice de canal dans un système de communication MIMO sans fil, et récepteur permettant de l'obtenir
CA2826085C (fr) * 2011-02-01 2017-03-07 Research In Motion Limited Systeme d'alignement d'interferences multi-utilisateurs en liaison descendante
US9331765B2 (en) 2011-02-01 2016-05-03 Blackberry Limited Mixed rank downlink multi-user interference alignment scheme
CN104244265B (zh) * 2013-06-13 2018-01-09 北京邮电大学 多天线场景下d2d通信与蜂窝通信共存的通信方法及系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030142762A1 (en) * 2002-01-11 2003-07-31 Burke Joseph P. Wireless receiver method and apparatus using space-cover-time equalization
US20040192215A1 (en) * 2003-03-28 2004-09-30 Onggosanusi Eko N. Linear single-antenna interference cancellation receiver
US20060109938A1 (en) * 2004-11-19 2006-05-25 Raghu Challa Interference suppression with virtual antennas

Family Cites Families (6)

* 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
US6714527B2 (en) * 1999-09-21 2004-03-30 Interdigital Techology Corporation Multiuser detector for variable spreading factors
DE60019091T2 (de) * 2000-05-05 2006-02-02 Lucent Technologies Inc. Funkkommunikationssystem
TW540200B (en) * 2000-11-09 2003-07-01 Interdigital Tech Corp Single user detection
CN1152504C (zh) * 2001-10-22 2004-06-02 信息产业部电信传输研究所 基于数字匹配滤波器的多径搜索与信道估计方法
JP4806170B2 (ja) * 2003-06-19 2011-11-02 三星電子株式会社 コチャンネル干渉を検出し、選択的にフィルタリングする装置及び方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030142762A1 (en) * 2002-01-11 2003-07-31 Burke Joseph P. Wireless receiver method and apparatus using space-cover-time equalization
US20040192215A1 (en) * 2003-03-28 2004-09-30 Onggosanusi Eko N. Linear single-antenna interference cancellation receiver
US20060109938A1 (en) * 2004-11-19 2006-05-25 Raghu Challa Interference suppression with virtual antennas

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
SAMARDZIJA ET AL.: "Performance Evaluation of the VBLAST Algorithm in W-CDMA Systems", VEHICULAR TECHNOLOGY CONFERENCE, vol. 2, October 2001 (2001-10-01), pages 723 - 727, XP010562523 *
See also references of EP1922816A4 *

Also Published As

Publication number Publication date
BRPI0614356A2 (pt) 2011-03-22
CN101283516B (zh) 2011-11-23
AU2006281941A1 (en) 2007-02-22
CA2515932A1 (fr) 2007-02-15
EP1922816A2 (fr) 2008-05-21
EP1922816A4 (fr) 2008-10-01
KR20080036223A (ko) 2008-04-25
JP2009505526A (ja) 2009-02-05
WO2007019679A2 (fr) 2007-02-22
CN101283516A (zh) 2008-10-08

Similar Documents

Publication Publication Date Title
MXPA05008763A (es) Receptor de comunicacion con un ecualizador adaptivo que utiliza calculo de canal.
WO2006132593A3 (fr) Procede et appareil d'estimation de correlation de la degradation dans un recepteur de communication sans fil
WO2007034366A3 (fr) Circuit de communication de donnees a controle d'egalisation
RU2006134654A (ru) Обработка общего канала пилот-сигнала (cpich) для оценки отношения сигнала к смеси помех с шумом (sinr) в системе w-cdma
WO2007140088A3 (fr) Procédé et appareil de transmission radio ultra large bande dans des systèmes d'irm
EP1289182A3 (fr) Détection de signaux avec un récepteur dans un système dispersif en temps à antennes multiples
TW200623778A (en) Time synchronization using spectral estimation in a communication system
WO2006081559A3 (fr) Procedes et systemes permettant de detecter et de reduire des interferences pour un dispositif sans fil
WO2008137650A3 (fr) Récepteur de démarrage à chaud
TW200501572A (en) Communication receiver with an adaptive equalizer length
WO2007019679A3 (fr) Appareil de radiocommunication a filtre jstof utilisant les decompositions de cholesky et des valeurs propres
JP2014522620A5 (fr)
ATE408951T1 (de) Gemeinsamer raum-zeit optimaler filter zur interferenzunterdrückung
WO2003058845A3 (fr) Antenne multiple robuste, de faible complexite, avec egaliseur adaptatif sur base d'erreur quadratique moyenne minimum
WO2004105287A3 (fr) Procede et dispositif d'egalisation et d'attenuation de la diaphonie
EP1600792A3 (fr) Dispositif et procédé d'estimation de la vitesse
CA2608872A1 (fr) Filtres spatio-temporels optimums a estimation conjointe (jstof) pour l'annulation de brouillage
EP1925088A4 (fr) Filtre spatio-temporel optimum a estimations conjointes (jstof) au moyen de decompositions de qr et de valeurs propres
EP1922818A4 (fr) Filtres spatio-temporels optimums a estimation conjointe (jstof) utilisant des decompositions en valeurs singulieres (svd)
EP1922889A4 (fr) Filtres spatio-temporels optimums a estimation conjointe (jstof) pourvus d'au moins une antenne, au moins une voie et d'une estimation conjointe de reponse impulsionnelles de voie et de ponderation des filtres
JP2009505525A5 (fr)
WO2005004338A3 (fr) Egaliseur base sur fenetre de glissement a complexite reduite
WO2008052146A3 (fr) Procédé et appareil pour améliorer une estimation de canal mimo en utilisant le champ de signal
CN106330795B (zh) 移动终端及其接收信号处理方法及装置
IL165903A0 (en) Method for equalising and demodulating a data signal which is transmitted via time-variant channel

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200680037752.9

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2619117

Country of ref document: CA

Ref document number: 2008526337

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2073/DELNP/2008

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 2006281941

Country of ref document: AU

Ref document number: 2006790540

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 1020087006317

Country of ref document: KR

ENP Entry into the national phase

Ref document number: 2006281941

Country of ref document: AU

Date of ref document: 20060814

Kind code of ref document: A

WWP Wipo information: published in national office

Ref document number: 2006281941

Country of ref document: AU

WWP Wipo information: published in national office

Ref document number: 2006790540

Country of ref document: EP

ENP Entry into the national phase

Ref document number: PI0614356

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20080215