BRPI0511591A - método para processar sinais digitais codificados de ofdm, processador de sinal e receptor arranjados para receber sinais digitais codificados de ofdm, dispositivo móvel, e, sistema de telecomunicação - Google Patents

método para processar sinais digitais codificados de ofdm, processador de sinal e receptor arranjados para receber sinais digitais codificados de ofdm, dispositivo móvel, e, sistema de telecomunicação

Info

Publication number
BRPI0511591A
BRPI0511591A BRPI0511591-4A BRPI0511591A BRPI0511591A BR PI0511591 A BRPI0511591 A BR PI0511591A BR PI0511591 A BRPI0511591 A BR PI0511591A BR PI0511591 A BRPI0511591 A BR PI0511591A
Authority
BR
Brazil
Prior art keywords
pilot
digital signals
encoded digital
transfer function
channel transfer
Prior art date
Application number
BRPI0511591-4A
Other languages
English (en)
Inventor
Constant Paul Marie Jos Baggen
Sri Andari Hunsen
Maurice Leonardus Anna Stassen
Hoi Yip Tsang
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of BRPI0511591A publication Critical patent/BRPI0511591A/pt

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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • 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
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03605—Block algorithms
    • 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
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • H04L25/0234—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals by non-linear interpolation
    • 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

Abstract

MéTODO PARA PROCESSAR SINAIS DIGITAIS CODIFICADOS DE OFDM, PROCESSADOR DE SINAL E RECEPTOR ARRANJADOS PARA RECEBER SINAIS DIGITAIS CODIFICADOS DE OFDM, DISPOSITIVO MóVEL, E, SISTEMA DE TELECOMUNICAçãO. Um método de processamento de sinal para um receptor para sinais digitais codificados de OFDM. Os sinais digitais codificados de OFDM são transmitidos como sub portadoras de símbolo de dados em vários canais de freqüência. Um subconjunto das sub portadoras está na forma de sub portadoras de piloto tendo um valor de piloto (a~ p~) conhecido no receptor. Primeiro, um sinal recebido (y~ o~) é obtido, seguido por uma primeira estimativa de uma função de transferência de canal piloto (H~ o~) em sub portadoras de dito sinal piloto recebido (y~ o~) e ditos valores de piloto conhecidos (a~ p~). Então, uma segunda estimativa de uma função de transferência de canal (H~ 1~) é executada em todas as sub-portadoras de dita função de transferência de canal piloto (H~ 0~). Uma terceira estimativa de uma derivada (H<39>~ 1~) da função de transferência de canal (H~ 1~) é executada da função de transferência de canal (H~ 1~) e uma função de transferência de canal (H~ 3~) de um símbolo de OFDM passado. Finalmente, uma quarta estimativa de um sinal recebido limpo (y~ 1~) é executada de dita derivada (H<39>~ 1~), dito sinal recebido (y~ 0~) e ditos valores de piloto (a~ p~) por remoção de interferência induzida por piloto.
BRPI0511591-4A 2004-05-28 2005-05-24 método para processar sinais digitais codificados de ofdm, processador de sinal e receptor arranjados para receber sinais digitais codificados de ofdm, dispositivo móvel, e, sistema de telecomunicação BRPI0511591A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04102371 2004-05-28
PCT/IB2005/051684 WO2005117380A1 (en) 2004-05-28 2005-05-24 A method for signal processing and a signal processor in an ofdm system

Publications (1)

Publication Number Publication Date
BRPI0511591A true BRPI0511591A (pt) 2008-01-02

Family

ID=34967762

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0511591-4A BRPI0511591A (pt) 2004-05-28 2005-05-24 método para processar sinais digitais codificados de ofdm, processador de sinal e receptor arranjados para receber sinais digitais codificados de ofdm, dispositivo móvel, e, sistema de telecomunicação

Country Status (9)

Country Link
US (1) US20070217327A1 (pt)
EP (1) EP1754354A1 (pt)
JP (1) JP2008501274A (pt)
KR (1) KR20070014187A (pt)
CN (1) CN1961549A (pt)
AU (1) AU2005332291A1 (pt)
BR (1) BRPI0511591A (pt)
RU (1) RU2006147009A (pt)
WO (1) WO2005117380A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1754353A1 (en) 2004-05-28 2007-02-21 Koninklijke Philips Electronics N.V. A method for signal processing and a signal processor in an ofdm system
FR2938137B1 (fr) * 2008-10-31 2011-04-15 St Microelectronics Sa Recepteur avec circuit d'estimation de canal.
GB2486494A (en) * 2010-12-17 2012-06-20 Vodafone Ip Licensing Ltd Interference detection in mobile telecommunications networks
US9713143B2 (en) * 2013-06-25 2017-07-18 Lg Electronics Inc. Method and apparatus for estimating self-interference in wireless access system supporting full-duplex radio communication
CN104901906B (zh) * 2014-03-07 2019-11-05 中兴通讯股份有限公司 一种相干光通信信道估计方法和系统
CN115426071A (zh) * 2022-08-31 2022-12-02 中国联合网络通信集团有限公司 一种干扰信号的消除方法、装置及存储介质

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US609089A (en) * 1898-08-16 button
US6009089A (en) * 1996-08-20 1999-12-28 Lucent Technologies Inc. Pilot interference cancellation for a coherent wireless code division multiple access receiver
JP3326679B2 (ja) * 1997-01-31 2002-09-24 沖電気工業株式会社 Ｃｄｍａ受信装置
US6498784B1 (en) * 1998-10-20 2002-12-24 Interdigital Technology Corporation Cancellation of pilot and traffic signals
US6333947B1 (en) * 1998-11-25 2001-12-25 Nortel Networks Limited Interference cancellation system and method and CDMA receiver including an interference cancellation circuit
US6654429B1 (en) * 1998-12-31 2003-11-25 At&T Corp. Pilot-aided channel estimation for OFDM in wireless systems
JP2003524338A (ja) * 2000-02-22 2003-08-12 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ チャネル予測器を有するマルチチャネル受信機
US7418043B2 (en) * 2000-07-19 2008-08-26 Lot 41 Acquisition Foundation, Llc Software adaptable high performance multicarrier transmission protocol
EP1364507A2 (en) * 2001-02-22 2003-11-26 Koninklijke Philips Electronics N.V. Multicarrier transmission system with reduced complexity leakage matrix multiplication
JP4164364B2 (ja) * 2001-02-22 2008-10-15 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 複雑さが低減したチャンネル応答推定を有するマルチキャリヤ伝送システム
US7190749B2 (en) * 2001-06-06 2007-03-13 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US6956893B2 (en) * 2001-08-20 2005-10-18 Motorola, Inc. Linear minimum mean square error equalization with interference cancellation for mobile communication forward links utilizing orthogonal codes covered by long pseudorandom spreading codes
US7324584B1 (en) * 2002-01-31 2008-01-29 Nortel Networks Limited Low complexity interference cancellation
US7292552B2 (en) * 2002-03-14 2007-11-06 Qualcomm Incorporated Method and apparatus for reducing interference in a wireless communication system

Also Published As

Publication number Publication date
KR20070014187A (ko) 2007-01-31
WO2005117380A1 (en) 2005-12-08
RU2006147009A (ru) 2008-07-10
AU2005332291A1 (en) 2007-01-25
AU2005332291A8 (en) 2008-08-14
CN1961549A (zh) 2007-05-09
US20070217327A1 (en) 2007-09-20
JP2008501274A (ja) 2008-01-17
EP1754354A1 (en) 2007-02-21

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired