BR9607811A - Avaliação aperfeiçoada de canal em um sistema de comunicação - Google Patents

Avaliação aperfeiçoada de canal em um sistema de comunicação

Info

Publication number
BR9607811A
BR9607811A BR9607811A BR9607811A BR9607811A BR 9607811 A BR9607811 A BR 9607811A BR 9607811 A BR9607811 A BR 9607811A BR 9607811 A BR9607811 A BR 9607811A BR 9607811 A BR9607811 A BR 9607811A
Authority
BR
Brazil
Prior art keywords
communication system
channel evaluation
improved channel
improved
evaluation
Prior art date
Application number
BR9607811A
Other languages
English (en)
Inventor
Thomas A Sexton
Fuyun Ling
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of BR9607811A publication Critical patent/BR9607811A/pt

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H04L7/0062—Detection of the synchronisation error by features other than the received signal transition detection of error based on data decision error, e.g. Mueller type detection
    • 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
    • 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
    • H04L25/0214—Channel estimation of impulse response of a single coefficient
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0236—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols using estimation of the other symbols

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
BR9607811A 1996-01-04 1996-10-28 Avaliação aperfeiçoada de canal em um sistema de comunicação BR9607811A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/582,691 US5687198A (en) 1996-01-04 1996-01-04 Channel estimation in a communication system
PCT/US1996/017288 WO1997025780A1 (en) 1996-01-04 1996-10-28 Improved channel estimation in a communication system

Publications (1)

Publication Number Publication Date
BR9607811A true BR9607811A (pt) 1998-07-07

Family

ID=24330130

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9607811A BR9607811A (pt) 1996-01-04 1996-10-28 Avaliação aperfeiçoada de canal em um sistema de comunicação

Country Status (6)

Country Link
US (1) US5687198A (pt)
JP (1) JP3881024B2 (pt)
KR (1) KR100260862B1 (pt)
CN (1) CN1084089C (pt)
BR (1) BR9607811A (pt)
WO (1) WO1997025780A1 (pt)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6278744B1 (en) 1996-11-15 2001-08-21 Conexant Systems, Inc. System for controlling and shaping the spectrum and redundancy of signal-point limited transmission
US6192087B1 (en) 1996-11-15 2001-02-20 Conexant Systems, Inc. Method and apparatus for spectral shaping in signal-point limited transmission systems
US5940439A (en) * 1997-02-26 1999-08-17 Motorola Inc. Method and apparatus for adaptive rate communication system
JP3441636B2 (ja) 1997-11-21 2003-09-02 株式会社エヌ・ティ・ティ・ドコモ チャネル推定値を求める装置および方法、受信装置ならびに伝送システム
AT407933B (de) * 1998-06-09 2001-07-25 Juha Dipl Ing Laurila Verfahren zur trennung und zur detektion von gleichkanal-signalen
US6687317B1 (en) * 1999-04-16 2004-02-03 Koninklijke Philips Electronics N.V. Method for correlation directed echo cancellation and channel equalization for the digital transmission link in vestigial side band amplitude modulation
US6614857B1 (en) * 1999-04-23 2003-09-02 Lucent Technologies Inc. Iterative channel estimation and compensation based thereon
US6493329B1 (en) * 1999-08-23 2002-12-10 Qualcomm Incorporated Adaptive channel estimation in a wireless communication system
US6700919B1 (en) * 1999-11-30 2004-03-02 Texas Instruments Incorporated Channel estimation for communication system using weighted estimates based on pilot data and information data
DE10001491A1 (de) * 2000-01-14 2001-07-19 Bosch Gmbh Robert Verfahren und Vorrichtung zur Synchronisation von Datenübertragungseinrichtungen
US6845104B2 (en) * 2000-06-14 2005-01-18 Ipr Licensing, Inc. Receiver for time division multiplex system without explicit time slot assignment
JP3735015B2 (ja) 2000-07-26 2006-01-11 松下電器産業株式会社 回線推定装置および回線推定方法
FI111886B (fi) * 2000-12-08 2003-09-30 Nokia Corp Tiedonkäsittelymenetelmä
ES2206374T3 (es) * 2000-12-28 2004-05-16 Com-Research Gmbh Solutions For Communication Systems Procedimiento y sistema para la supresion de interferencias para la transmision tdma y/o fdma.
GB2370952B (en) * 2001-01-05 2003-04-09 British Broadcasting Corp Improvements in channel state measurement and in discriminating digital values from a received signal suitable for use with OFDM signals
US20020136331A1 (en) * 2001-01-24 2002-09-26 Leif Wilhelmsson Method and apparatus for performing channel estimation with a limiting receiver
US6940914B1 (en) 2001-06-11 2005-09-06 Cingular Wireless Ii, Llc Turbo channel estimation for OFDM systems
US6999538B2 (en) * 2001-09-10 2006-02-14 Mitsubishi Electric Research Laboratories, Inc. Dynamic diversity combiner with associative memory model for recovering signals in communication systems
US20040165683A1 (en) * 2002-09-04 2004-08-26 Gupta Alok Kumar Channel estimation for communication systems
US7639600B1 (en) * 2003-02-12 2009-12-29 Marvell International Ltd. Low complexity channel estimation for orthogonal frequency division modulation systems
GB2409604B (en) * 2003-12-22 2006-02-08 Toshiba Res Europ Ltd Method and apparatus for recovering timing in packet based wireless network.
US9258149B2 (en) * 2004-09-10 2016-02-09 Mstar Semiconductor, Inc. Refinement of channel response calculation
US7924934B2 (en) * 2006-04-07 2011-04-12 Airbiquity, Inc. Time diversity voice channel data communications
CN101166167B (zh) * 2006-10-20 2010-09-22 北京新岸线无线技术有限公司 用于正交频分复用802.11系统的信道估计方法及装置
TW201039574A (en) * 2009-04-22 2010-11-01 Ralink Technology Corp Method of detecting transmission channel and a wireless communication system using the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5136612A (en) * 1990-12-31 1992-08-04 At&T Bell Laboratories Method and apparatus for reducing effects of multiple access interference in a radio receiver in a code division multiple access communication system
JP2643792B2 (ja) * 1993-09-14 1997-08-20 日本電気株式会社 復調装置

Also Published As

Publication number Publication date
CN1177428A (zh) 1998-03-25
KR100260862B1 (ko) 2000-07-01
US5687198A (en) 1997-11-11
WO1997025780A1 (en) 1997-07-17
JPH11502098A (ja) 1999-02-16
CN1084089C (zh) 2002-05-01
JP3881024B2 (ja) 2007-02-14
KR19980702761A (ko) 1998-08-05

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B25D Requested change of name of applicant approved

Owner name: MOTOROLA SOLUTIONS, INC. (US)

B25A Requested transfer of rights approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B25G Requested change of headquarter approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B25E Requested change of name of applicant rejected

Owner name: MOTOROLA MOBILITY, INC. (US)

Free format text: INDEFERIDA A ALTERACAO DE NOME SOLICITADA ATRAVES DA PETICAO NO 020130025896-RJ, DE 28/03/2013, UMA VEZ QUE NAO FOI PAGA A RESPECTIVA TAXA DE RETRIBUICAO.

B25D Requested change of name of applicant approved

Owner name: MOTOROLA MOBILITY, LLC (US)

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 20A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2385 DE 20-09-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.