ES2541682T3 - Aparato de comunicación multiportador con transmisión adaptativa de acuerdo con fluctuaciones de la vía de transmisión - Google Patents

Aparato de comunicación multiportador con transmisión adaptativa de acuerdo con fluctuaciones de la vía de transmisión Download PDF

Info

Publication number
ES2541682T3
ES2541682T3 ES04771624.6T ES04771624T ES2541682T3 ES 2541682 T3 ES2541682 T3 ES 2541682T3 ES 04771624 T ES04771624 T ES 04771624T ES 2541682 T3 ES2541682 T3 ES 2541682T3
Authority
ES
Spain
Prior art keywords
transmission path
transmission
communication apparatus
estimation
signal
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.)
Expired - Lifetime
Application number
ES04771624.6T
Other languages
English (en)
Spanish (es)
Inventor
Hisao Koga
Nobutaka Kodama
Taisuke Konishi
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.)
Panasonic Corp
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Application granted granted Critical
Publication of ES2541682T3 publication Critical patent/ES2541682T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B14/00Transmission systems not characterised by the medium used for transmission
    • H04B14/02Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/023Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse amplitude modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/54Systems for transmission via power distribution lines
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L25/03159Arrangements for removing intersymbol interference operating in the frequency domain
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0004Modulated-carrier systems using wavelets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • H04L5/0046Determination of the number of bits transmitted on different sub-channels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2203/00Indexing scheme relating to line transmission systems
    • H04B2203/54Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5416Methods of transmitting or receiving signals via power distribution lines by adding signals to the wave form of the power source
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2203/00Indexing scheme relating to line transmission systems
    • H04B2203/54Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5425Methods of transmitting or receiving signals via power distribution lines improving S/N by matching impedance, noise reduction, gain control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2203/00Indexing scheme relating to line transmission systems
    • H04B2203/54Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462Systems for power line communications
    • H04B2203/5491Systems for power line communications using filtering and bypassing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L2025/0335Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375Passband transmission
    • H04L2025/03414Multicarrier
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202Channel estimation
    • H04L25/022Channel estimation of frequency response

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
ES04771624.6T 2003-08-07 2004-08-06 Aparato de comunicación multiportador con transmisión adaptativa de acuerdo con fluctuaciones de la vía de transmisión Expired - Lifetime ES2541682T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003288747 2003-08-07
JP2003288747A JP4356392B2 (ja) 2003-08-07 2003-08-07 通信装置
PCT/JP2004/011649 WO2005015865A1 (en) 2003-08-07 2004-08-06 Multi-carrier communication apparatus with adaptive transmission according to transmission path fluctuations

Publications (1)

Publication Number Publication Date
ES2541682T3 true ES2541682T3 (es) 2015-07-23

Family

ID=34131528

Family Applications (2)

Application Number Title Priority Date Filing Date
ES04771624.6T Expired - Lifetime ES2541682T3 (es) 2003-08-07 2004-08-06 Aparato de comunicación multiportador con transmisión adaptativa de acuerdo con fluctuaciones de la vía de transmisión
ES10190984.4T Expired - Lifetime ES2539580T3 (es) 2003-08-07 2004-08-06 Aparato de comunicación multiportador con transmisión adaptativa de acuerdo con fluctuaciones de la vía de transmisión

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES10190984.4T Expired - Lifetime ES2539580T3 (es) 2003-08-07 2004-08-06 Aparato de comunicación multiportador con transmisión adaptativa de acuerdo con fluctuaciones de la vía de transmisión

Country Status (6)

Country Link
US (3) US7302240B2 (https=)
EP (2) EP2293508B1 (https=)
JP (1) JP4356392B2 (https=)
CN (3) CN1833421B (https=)
ES (2) ES2541682T3 (https=)
WO (1) WO2005015865A1 (https=)

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003237796A1 (en) * 2002-01-24 2003-09-02 Matsushita Electric Industrial Co., Ltd. Method of and system for power line carrier communications
JP4356392B2 (ja) * 2003-08-07 2009-11-04 パナソニック株式会社 通信装置
JP5052742B2 (ja) * 2004-07-22 2012-10-17 パナソニック株式会社 送信装置及びそれを用いた通信システム
TWI271951B (en) * 2004-12-15 2007-01-21 Mediatek Inc Impulse supression apparatus of OFDM system and impulse supression method thereof
JP4606149B2 (ja) 2004-12-16 2011-01-05 パナソニック株式会社 受信装置及び受信方法
US8126065B2 (en) * 2005-03-23 2012-02-28 Sony Corporation Automatic power adjustment in powerline home network
JP2006295479A (ja) * 2005-04-08 2006-10-26 Matsushita Electric Ind Co Ltd 電力線通信装置及び電力線通信方法
ES2421782T3 (es) 2005-04-29 2013-09-05 Sony Deutschland Gmbh Dispositivo de transmisión, dispositivo de recepción y método de comunicación para un sistema de comunicaciones OFDM con nueva estructura del preámbulo
JP4731991B2 (ja) * 2005-05-16 2011-07-27 パナソニック株式会社 マルチキャリア通信装置及びマルチキャリア通信方法
US7907509B2 (en) * 2005-05-26 2011-03-15 Panasonic Corporation Communication apparatus, integrated circuit and communication method
JP4699113B2 (ja) * 2005-07-05 2011-06-08 パナソニック株式会社 マルチキャリア通信装置、及びマルチキャリア通信方法
JP4895557B2 (ja) * 2005-09-16 2012-03-14 パナソニック株式会社 マルチキャリア通信装置、及びマルチキャリア通信方法
US7636553B2 (en) * 2005-09-21 2009-12-22 Broadcom Corporation Double search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback
JP4749815B2 (ja) * 2005-09-27 2011-08-17 パナソニック株式会社 マルチキャリア通信装置、マルチキャリア通信システム、及びマルチキャリア通信方法
JP4749840B2 (ja) * 2005-11-10 2011-08-17 パナソニック株式会社 通信装置及び通信方法
EP1949553B1 (en) 2005-11-10 2013-05-01 Panasonic Corporation Method and apparatus for power line communication
JP4649597B2 (ja) 2006-02-22 2011-03-09 独立行政法人産業技術総合研究所 データ送信装置
JP4821377B2 (ja) * 2006-03-08 2011-11-24 日本電気株式会社 マルチキャリア伝送装置、マルチキャリア伝送方法及びプログラム
JP4946121B2 (ja) * 2006-03-24 2012-06-06 パナソニック株式会社 認証中継装置、認証中継システム、及び認証中継方法
US7912139B2 (en) * 2006-04-03 2011-03-22 Panasonic Corporation Multi-carrier communication apparatus, power line communication circuit, and multi-carrier communication method
JP2007281577A (ja) * 2006-04-03 2007-10-25 Matsushita Electric Ind Co Ltd マルチキャリア受信装置及びマルチキャリア受信方法
US8045927B2 (en) * 2006-04-27 2011-10-25 Nokia Corporation Signal detection in multicarrier communication system
CN101079643A (zh) * 2006-05-26 2007-11-28 摩托罗拉公司 减小无线发射机中的功耗的方法和系统
JP4907277B2 (ja) * 2006-09-15 2012-03-28 パナソニック株式会社 電力線通信装置、電力線通信方法、及び電力線通信システム
US7782934B2 (en) * 2006-09-18 2010-08-24 Silicon Image, Inc. Parameter scanning for signal over-sampling
DE602007000566D1 (de) * 2007-02-14 2009-04-02 Ntt Docomo Inc Empfängergerät zur Erfassung von Schmalbandinterferenz in einem Mehrträgerempfangssignal
DE602007000507D1 (de) * 2007-02-14 2009-03-12 Ntt Docomo Inc Empfängergerät, Sendegerät und Kommunikationssystem zur Erfassung von Schmalbandinterferenz in einem Mehrträgerempfangssignal
WO2008132961A1 (ja) * 2007-04-12 2008-11-06 Sharp Kabushiki Kaisha 通信装置、通信方法、通信プログラム及び記録媒体
JP5448359B2 (ja) * 2007-05-30 2014-03-19 パナソニック株式会社 電力線通信方法、電力線通信装置、及び電力線通信システム
US8031586B2 (en) * 2007-08-15 2011-10-04 Nokia Corporation Method and apparatus for transmitter timing adjustment
JP2009088793A (ja) * 2007-09-28 2009-04-23 Fujitsu Ltd 同期用システム、同期信号送信装置、クロック供給装置、及び同期方法
US8411766B2 (en) 2008-04-09 2013-04-02 Wi-Lan, Inc. System and method for utilizing spectral resources in wireless communications
JP4962412B2 (ja) * 2008-05-27 2012-06-27 株式会社デンソー キャリアセンス回路
US8265214B2 (en) * 2008-07-01 2012-09-11 Qualcomm Incorporated Method and apparatus for adaptive timing synchronization in a communication network
JP5158958B2 (ja) 2008-07-31 2013-03-06 パナソニック株式会社 Ofdmシンボル検出方法、ofdm受信装置、集積回路および回路モジュール
US8274885B2 (en) 2008-10-03 2012-09-25 Wi-Lan, Inc. System and method for data distribution in VHF/UHF bands
US8107391B2 (en) 2008-11-19 2012-01-31 Wi-Lan, Inc. Systems and etiquette for home gateways using white space
US8335204B2 (en) 2009-01-30 2012-12-18 Wi-Lan, Inc. Wireless local area network using TV white space spectrum and long term evolution system architecture
KR101510741B1 (ko) * 2009-03-06 2015-04-10 삼성전자주식회사 무선 방송 통신 시스템의 방송 신호 송수신 방법 및 이를 위한 장치
US8937872B2 (en) 2009-06-08 2015-01-20 Wi-Lan, Inc. Peer-to-peer control network for a wireless radio access network
US8488663B2 (en) 2009-09-23 2013-07-16 Maxlinear, Inc. Impulse noise mitigation under out-of-band interference conditions
JP5423807B2 (ja) * 2009-11-27 2014-02-19 日本電気株式会社 無線通信システム、無線通信装置及び無線通信方法
JP5719998B2 (ja) 2010-02-10 2015-05-20 パナソニックIpマネジメント株式会社 送信装置、受信装置、送信方法及び受信方法
KR101184902B1 (ko) 2011-02-14 2012-09-20 주식회사 파워챔프 통신 시스템의 수신 신호 이득 설정 방법
JPWO2012157565A1 (ja) * 2011-05-13 2014-07-31 日本電気株式会社 無線装置、ルータ、無線システム及び無線伝送速度最適化方法
CN102420639B (zh) * 2011-10-19 2014-06-18 南京致德软件科技有限公司 一种低压电力线高频噪声采样与回放系统
CN103107829B (zh) * 2011-11-09 2014-12-10 中国移动通信集团上海有限公司 电力线通信系统中滤波装置的开关切换方法及装置
CN102523017B (zh) * 2011-12-01 2014-01-01 清华大学 一种单载波超宽带接收机芯片
JP5909417B2 (ja) 2012-07-13 2016-04-26 ルネサスエレクトロニクス株式会社 半導体装置及び受信装置
JP2014064100A (ja) * 2012-09-20 2014-04-10 Aisin Seiki Co Ltd 電力線通信用トランシーバ及び電力線通信方法
CN104079319A (zh) * 2013-03-26 2014-10-01 杨晨 载波多模式多通道系统
JP6259297B2 (ja) * 2014-01-29 2018-01-10 ルネサスエレクトロニクス株式会社 信号処理装置、信号処理方法およびプログラム
US9137074B2 (en) 2014-02-13 2015-09-15 Futurewei Technologies, Inc. System and method for guard band utilization for synchronous and asynchronous communications
JP6536988B2 (ja) * 2014-05-08 2019-07-03 パナソニックIpマネジメント株式会社 送信端末装置、受信端末装置及び電力線通信システム
CN106302300B (zh) * 2015-06-24 2020-07-31 北京三星通信技术研究有限公司 一种基于滤波器组多载波系统的信号发送和接收的方法及装置
KR101746799B1 (ko) * 2015-11-04 2017-06-14 주식회사 쏠리드 분산 안테나 시스템
CN112350747B (zh) * 2020-10-20 2021-12-10 华北电力大学 一种利用状态估计的plc信道脉冲噪声检测方法和系统
JP7597126B2 (ja) * 2020-12-25 2024-12-10 日本電気株式会社 信号処理装置、信号処理方法及びプログラム
CN114598392B (zh) * 2022-03-22 2024-03-15 中山大学 多维光调制器支路间高精度同步方法
CN114553263B (zh) * 2022-04-27 2022-08-02 杭州禾迈电力电子股份有限公司 电力线载波通讯装置及方法
CN119172314B (zh) * 2024-09-09 2025-10-10 新华三技术有限公司 基于信用值的拥塞控制方法、装置和设备

Family Cites Families (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62294339A (ja) 1986-06-13 1987-12-21 Omron Tateisi Electronics Co 配電線通信装置
JP2720131B2 (ja) 1992-05-15 1998-02-25 株式会社日立製作所 X線反射プロファイル測定方法及び装置
US5995539A (en) * 1993-03-17 1999-11-30 Miller; William J. Method and apparatus for signal transmission and reception
US5497398A (en) * 1993-08-12 1996-03-05 Aware, Inc. Multi-carrier transceiver
US5636246A (en) * 1994-11-16 1997-06-03 Aware, Inc. Multicarrier transmission system
US5631610A (en) * 1996-01-25 1997-05-20 Aware, Inc. Single side-band modulation system for use in digitally implemented multicarrier transmission systems
EP0923824B1 (en) * 1996-09-02 2003-05-28 STMicroelectronics N.V. Improvements in, or relating to, control channels for telecommunications transmission systems
DE69724625T2 (de) * 1996-09-02 2004-06-24 Stmicroelectronics N.V. Verbesserungen bei, oder in bezug auf mehrträgerübertragungssysteme
EP0922346B1 (en) 1996-09-02 2003-07-16 STMicroelectronics N.V. Improvements in, or relating to, multi-carrier transmission systems
JPH1120131A (ja) 1997-07-03 1999-01-26 Ryobi Ltd 印刷機の刷版咥え装置
JP3078262B2 (ja) 1997-08-28 2000-08-21 住友電気工業株式会社 通信装置
JPH11163807A (ja) * 1997-09-29 1999-06-18 Matsushita Electric Ind Co Ltd 通信システム、送信器および受信器
JP2920131B1 (ja) 1998-01-28 1999-07-19 株式会社次世代デジタルテレビジョン放送システム研究所 Ofdm信号送出装置
JPH11313043A (ja) 1998-02-27 1999-11-09 Nec Corp マルチキャリア伝送システム及び伝送装置並びに伝送方法
JP3470583B2 (ja) 1998-03-05 2003-11-25 株式会社豊田中央研究所 受信機
JP2967193B2 (ja) 1998-03-20 1999-10-25 郵政省通信総合研究所長 直交ウェーブレットを用いた情報伝送方法
US7058002B1 (en) * 1999-04-22 2006-06-06 Nippon Telegraph And Telephone Corporation OFDM packet communication receiver
US6570929B1 (en) * 1999-07-08 2003-05-27 Telefonaktiebolaget Lm Ericsson (Publ) Power control scheme for maximizing carrier signal-to-noise ratio in multicarrier transmitters
US6397368B1 (en) * 1999-12-06 2002-05-28 Intellon Corporation Forward error correction with channel adaptation
US6442129B1 (en) * 1999-12-06 2002-08-27 Intellon Corporation Enhanced channel estimation
US7027493B2 (en) * 2000-01-19 2006-04-11 Time Domain Corporation System and method for medium wide band communications by impluse radio
ATE395770T1 (de) * 2000-03-07 2008-05-15 Alcatel Lucent Verfahren zur bestimmung einer eigenschaft eines kanals und diskreter-wavelet empfänger zur durchführung des verfahrens
JP4337228B2 (ja) * 2000-04-13 2009-09-30 ソニー株式会社 Ofdm受信装置及び方法
US7058140B2 (en) * 2000-06-16 2006-06-06 Smart Kevin J Sliding-window multi-carrier frequency division multiplexing system
US6754170B1 (en) * 2000-09-29 2004-06-22 Symbol Technologies, Inc. Timing synchronization in OFDM communications receivers
KR100966059B1 (ko) * 2001-01-16 2010-06-28 다피모 코.비.브이.,엘엘씨 끊김없는 전송률 어댑테이션을 이용하는 고속 초기화 방법, 시스템, 송수신기 및 정보저장매체
US6751187B2 (en) * 2001-05-17 2004-06-15 Qualcomm Incorporated Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission
ES2188373B1 (es) * 2001-05-25 2004-10-16 Diseño De Sistemas En Silencio, S.A. Procedimiento de optimizacion de la comunicacion para sistema de transmision digital ofdm multiusuario sobre red electrica.
GB2376855A (en) * 2001-06-20 2002-12-24 Sony Uk Ltd Determining symbol synchronisation in an OFDM receiver in response to one of two impulse response estimates
US20030133473A1 (en) * 2001-08-04 2003-07-17 Manis Constantine N. Power line communication system
JP3727283B2 (ja) * 2001-11-26 2005-12-14 松下電器産業株式会社 無線送信装置、無線受信装置及び無線送信方法
JP3538187B2 (ja) * 2002-03-26 2004-06-14 株式会社東芝 Ofdm受信装置およびofdm受信装置におけるデータ復調方法
US7418026B2 (en) * 2002-05-09 2008-08-26 Sony United Kingdom Limited Receiver for a multi-carrier modulated symbol
WO2003100996A2 (en) * 2002-05-28 2003-12-04 Amperion, Inc. Broadband communications using a medium-voltage power line
SG129231A1 (en) * 2002-07-03 2007-02-26 Oki Techno Ct Singapore Pte Receiver and method for wlan burst type signals
AU2003254284A1 (en) * 2002-08-01 2004-02-23 Aware, Inc. Multi-tap frequency domain equalization with decision feedback and trellis decoding
US7161896B1 (en) * 2002-08-12 2007-01-09 Cisco Systems Wireless Networking (Australia) Pty Limited Channel estimation in a multicarrier radio receiver
AU2002330832A1 (en) * 2002-08-28 2004-04-23 Agency For Science Technology And Research Receiver having a signal reconstructing section for noise reduction, system and method thereof
US7369579B2 (en) * 2002-09-25 2008-05-06 Oleg Logvinov Method and system for timing controlled signal transmission in a point to multipoint power line communications system
US7471745B2 (en) * 2002-11-26 2008-12-30 Texas Instruments Incorporated Method and apparatus for channel quality metric generation within a packet-based multicarrier modulation communication system
US20040105512A1 (en) * 2002-12-02 2004-06-03 Nokia Corporation Two step synchronization procedure for orthogonal frequency division multiplexing (OFDM) receivers
EP1512258B1 (en) * 2003-06-22 2008-12-03 NTT DoCoMo, Inc. Apparatus and method for estimating a channel in a multiple input transmission system
JP4356392B2 (ja) * 2003-08-07 2009-11-04 パナソニック株式会社 通信装置
JP4291673B2 (ja) * 2003-11-11 2009-07-08 株式会社エヌ・ティ・ティ・ドコモ Ofdm受信機

Also Published As

Publication number Publication date
US20100226446A1 (en) 2010-09-09
EP1654849B1 (en) 2015-04-22
JP4356392B2 (ja) 2009-11-04
CN102118347B (zh) 2013-12-25
EP2293508A1 (en) 2011-03-09
US8086194B2 (en) 2011-12-27
US7725081B2 (en) 2010-05-25
CN101714968B (zh) 2013-10-09
JP2005057644A (ja) 2005-03-03
US7302240B2 (en) 2007-11-27
CN1833421B (zh) 2012-07-04
CN101714968A (zh) 2010-05-26
EP2293508B1 (en) 2015-04-15
CN1833421A (zh) 2006-09-13
WO2005015865A1 (en) 2005-02-17
ES2539580T3 (es) 2015-07-02
US20050037722A1 (en) 2005-02-17
EP1654849A1 (en) 2006-05-10
US20080095253A1 (en) 2008-04-24
CN102118347A (zh) 2011-07-06

Similar Documents

Publication Publication Date Title
ES2541682T3 (es) Aparato de comunicación multiportador con transmisión adaptativa de acuerdo con fluctuaciones de la vía de transmisión
ES2648013T3 (es) Selección de velocidad para un sistema OFDM
JP4415777B2 (ja) マルチキャリア通信における適応変調方法
JP5061892B2 (ja) 無線通信システムにおける信号多重方法、送信局及び受信局
US20060280113A1 (en) Method and apparatus for dynamic allocation of pilot symbols
CN1961513B (zh) 多载波通信环境中语音业务的自适应调度
JP2011015424A (ja) Ofdmトランシーバのチャネル推定
KR20050048408A (ko) 직교 주파수 분할 다중 방식을 사용하는 통신 시스템에서적응적 변조 및 코딩 제어 장치 및 방법
US20120327830A1 (en) Wireless communication system, wireless transmission device and wireless transmission method
JP2003060609A (ja) 通信方法および通信装置
JP2005123898A (ja) 通信装置
JP4766157B2 (ja) 通信装置
US7693224B2 (en) Subcarrier adaptive thresholding
KR101093346B1 (ko) Ofdma 심볼 송신 장치 및 송신 방법
Fuhrwerk et al. Performance comparison of CP-OFDM and OQAM-OFDM systems based on LTE parameters
JP5445624B2 (ja) 送信局及び受信局
JP4468160B2 (ja) サブキャリア適応制御方法及びその装置、無線装置
KR20050119592A (ko) 주파수 도약-직교 주파수 분할 다중 접속 방식을 사용하는이동 통신 시스템에서 채널 추정 장치 및 방법
Subha et al. Spectrum efficiency of Fixed WiMAX OFDM network in the presence of co-channel interference with diversity combining
Sergienko Adaptive OFDM Transmission in TDD Systems with Fixed Minimum Distance of Received Constellations
Liu et al. Performance analysis of a combined adaptive OFDM transmission scheme for broadband power line communications
Marabissi et al. Adaptive Modulation Algorithms based on Finite State Modeling in Wireless OFDMA Systems