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DE69831449D1 - Empfänger, Kommunikationssystem und Kommunikationsverfahren - Google Patents

Empfänger, Kommunikationssystem und Kommunikationsverfahren

Info

Publication number
DE69831449D1
DE69831449D1 DE69831449T DE69831449T DE69831449D1 DE 69831449 D1 DE69831449 D1 DE 69831449D1 DE 69831449 T DE69831449 T DE 69831449T DE 69831449 T DE69831449 T DE 69831449T DE 69831449 D1 DE69831449 D1 DE 69831449D1
Authority
DE
Germany
Prior art keywords
receiver
communication
communication system
communication method
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
DE69831449T
Other languages
English (en)
Other versions
DE69831449T2 (de
Inventor
Kazuyuki Sakoda
Mitsuhiro Suzuki
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69831449D1 publication Critical patent/DE69831449D1/de
Publication of DE69831449T2 publication Critical patent/DE69831449T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
    • 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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • 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
    • 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
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/067—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing soft decisions, i.e. decisions together with an estimate of reliability
    • 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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or 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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
    • 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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)
DE69831449T 1997-06-24 1998-06-24 Empfänger, Kommunikationssystem und Kommunikationsverfahren Expired - Lifetime DE69831449T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16775797A JP3745502B2 (ja) 1997-06-24 1997-06-24 受信装置及び送受信装置並びに通信方法

Publications (2)

Publication Number Publication Date
DE69831449D1 true DE69831449D1 (de) 2005-10-13
DE69831449T2 DE69831449T2 (de) 2006-06-14

Family

ID=15855536

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69831449T Expired - Lifetime DE69831449T2 (de) 1997-06-24 1998-06-24 Empfänger, Kommunikationssystem und Kommunikationsverfahren

Country Status (9)

Country Link
US (1) US6243423B1 (de)
EP (1) EP0887976B1 (de)
JP (1) JP3745502B2 (de)
KR (1) KR100526821B1 (de)
CN (1) CN1252938C (de)
AU (1) AU748411B2 (de)
DE (1) DE69831449T2 (de)
ID (1) ID20460A (de)
MY (1) MY124580A (de)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
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US6563881B1 (en) * 1998-07-13 2003-05-13 Sony Corporation Communication method and transmitter with transmission symbols arranged at intervals on a frequency axis
JP4147438B2 (ja) * 1998-09-04 2008-09-10 富士通株式会社 復調器
KR100531357B1 (ko) * 1999-02-05 2005-11-28 엘지전자 주식회사 이동무선 통신 시스템의 수신기에 있어서 오류 정정 복호화 장치 및 방법
GB2346776B (en) * 1999-02-13 2001-09-12 Motorola Ltd Synchronisation lock detector and method
US6925067B2 (en) 1999-04-23 2005-08-02 Qualcomm, Incorporated Configuration of overhead channels in a mixed bandwidth system
JP4531734B2 (ja) * 1999-05-10 2010-08-25 株式会社エヌ・ティ・ティ・ドコモ インターリーブ方法及び送信装置
US6542475B1 (en) * 1999-08-09 2003-04-01 At&T Corp. Method and system for providing enhanced call service features at remote locations
JP4284774B2 (ja) * 1999-09-07 2009-06-24 ソニー株式会社 送信装置、受信装置、通信システム、送信方法及び通信方法
US7099413B2 (en) * 2000-02-07 2006-08-29 At&T Corp. Method for near optimal joint channel estimation and data detection for COFDM systems
JP3581294B2 (ja) * 2000-03-31 2004-10-27 株式会社東芝 受信装置
US6977972B1 (en) * 2000-07-12 2005-12-20 Sharp Laboratories Of America, Inc. Method of hybrid soft/hard decision demodulation of signals with multilevel modulation
JP3609355B2 (ja) * 2000-07-24 2005-01-12 シャープ株式会社 Ｏｆｄｍ復調装置
JP3419749B2 (ja) * 2000-10-10 2003-06-23 松下電器産業株式会社 受信装置および受信方法
SE0004403L (sv) * 2000-11-29 2002-05-30 Ericsson Telefon Ab L M Metoder och anordningar i ett telekommunikationssystem
JP2002185430A (ja) * 2000-12-13 2002-06-28 Sony Corp 受信装置及び方法
GB0126067D0 (en) * 2001-10-31 2001-12-19 Zarlink Semiconductor Ltd Method of and apparatus for detecting impulsive noise method of operating a demodulator demodulator and radio receiver
GB2388756A (en) * 2002-05-17 2003-11-19 Hewlett Packard Co Calculating an estimate of bit reliability in a OFDM receiver by multiplication of the channel state modulus
WO2004049661A1 (en) * 2002-11-22 2004-06-10 Telefonaktiebolaget Lm Ericsson (Publ) Calculation of soft decision values using reliability information of the amplitude
EP1422896A1 (de) * 2002-11-22 2004-05-26 Telefonaktiebolaget LM Ericsson (publ) Ausrechnung von Soft-Decision-Werten unter Verwendung von Amplituden-Zuverlässigkeitsinformation
KR20040068771A (ko) * 2003-01-27 2004-08-02 삼성전자주식회사 소프트 복조 방법 및 소프트 복조 장치
US7822150B2 (en) * 2003-03-15 2010-10-26 Alcatel-Lucent Usa Inc. Spherical decoder for wireless communications
US7154966B2 (en) 2003-06-30 2006-12-26 Telefonaktiebolaget L M Ericsson (Publ) Method and system for M-QAM detection in communication systems
AU2004212605A1 (en) 2003-09-26 2005-04-14 Nec Australia Pty Ltd Computation of soft bits for a turbo decoder in a communication receiver
US7315578B2 (en) * 2003-12-24 2008-01-01 Telefonaktiebolaget Lm Ericsson (Publ) Fast soft value computation methods for gray-mapped QAM
US7512185B2 (en) 2004-03-08 2009-03-31 Infineon Technologies Ag Dual carrier modulator for a multiband OFDM UWB transceiver
GB0419946D0 (en) * 2004-09-08 2004-10-13 British Telecomm High data rate demodulation system
JP4403974B2 (ja) * 2005-01-21 2010-01-27 株式会社日立製作所 適応変調方法並びに符号化率制御方法
US7379445B2 (en) * 2005-03-31 2008-05-27 Yongfang Guo Platform noise mitigation in OFDM receivers
US7386823B2 (en) * 2005-07-20 2008-06-10 Springsoft, Inc. Rule-based schematic diagram generator
BRPI0709188A2 (pt) 2006-03-29 2011-06-28 Thomson Licensing amplificador limitador de freqüência em um receptor fsk
GB0614836D0 (en) * 2006-07-26 2006-09-06 Ttp Communications Ltd Soft decision processing
JP5003147B2 (ja) * 2006-12-26 2012-08-15 ソニー株式会社 信号処理装置および信号処理方法、並びにプログラム
JP5336994B2 (ja) * 2009-10-19 2013-11-06 キヤノン株式会社 通信方法及び通信装置
US8340202B2 (en) 2010-03-11 2012-12-25 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for efficient soft modulation for gray-mapped QAM symbols
US8811465B2 (en) * 2010-12-24 2014-08-19 Mitsubishi Electric Corporation Reception device and method
JPWO2015037342A1 (ja) * 2013-09-10 2017-03-02 ソニー株式会社 通信装置及び通信方法
CN110365583B (zh) * 2019-07-17 2020-05-22 南京航空航天大学 一种基于桥接域迁移学习的符号预测方法及系统
KR20230026138A (ko) 2021-08-17 2023-02-24 삼성전자주식회사 복수의 이전 신호들에 기초하여 dpsk를 수행하는 통신 장치 및 이의 동작 방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5191576A (en) * 1988-11-18 1993-03-02 L'Etat Francais and Telediffusion de France S.A. Method for broadcasting of digital data, notably for radio broadcasting at high throughput rate towards mobile receivers, with time frequency interlacing and analog synchronization
US5519730A (en) * 1990-06-12 1996-05-21 Jasper; Steven C. Communication signal having a time domain pilot component
US5278871A (en) * 1992-03-19 1994-01-11 Motorola, Inc. Method and apparatus for estimating signal weighting parameters in a receiver
US5412686A (en) * 1993-09-17 1995-05-02 Motorola Inc. Method and apparatus for power estimation in a communication system
US5533062A (en) * 1994-10-03 1996-07-02 Motorola, Inc. Method and apparatus for carrier tracking and demodulation
JP3582139B2 (ja) * 1995-03-31 2004-10-27 ソニー株式会社 データ復調装置およびデータ伝送方法
JPH1117760A (ja) * 1997-06-24 1999-01-22 Sony Corp 受信装置及び送受信装置並びに通信方法

Also Published As

Publication number Publication date
ID20460A (id) 1998-12-24
AU748411B2 (en) 2002-06-06
DE69831449T2 (de) 2006-06-14
AU7314698A (en) 1999-01-07
KR19990007245A (ko) 1999-01-25
CN1216419A (zh) 1999-05-12
EP0887976A3 (de) 2001-05-16
US6243423B1 (en) 2001-06-05
CN1252938C (zh) 2006-04-19
KR100526821B1 (ko) 2006-01-27
EP0887976A2 (de) 1998-12-30
JP3745502B2 (ja) 2006-02-15
EP0887976B1 (de) 2005-09-07
JPH1117761A (ja) 1999-01-22
MY124580A (en) 2006-06-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)