SE9602402L - Förbättringar i, eller avseende multipelsystem med ortogonal frekvensindelning - Google Patents

Förbättringar i, eller avseende multipelsystem med ortogonal frekvensindelning

Info

Publication number
SE9602402L
SE9602402L SE9602402A SE9602402A SE9602402L SE 9602402 L SE9602402 L SE 9602402L SE 9602402 A SE9602402 A SE 9602402A SE 9602402 A SE9602402 A SE 9602402A SE 9602402 L SE9602402 L SE 9602402L
Authority
SE
Sweden
Prior art keywords
respect
frequency division
orthogonal frequency
multiple systems
isi
Prior art date
Application number
SE9602402A
Other languages
Unknown language ( )
English (en)
Other versions
SE518137C2 (sv
SE9602402D0 (sv
Inventor
Mattias Wahlqvist
Christer Oeberg
Roger Larsson
Original Assignee
Telia Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20403054&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE9602402(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Telia Ab filed Critical Telia Ab
Priority to SE9602402A priority Critical patent/SE518137C2/sv
Publication of SE9602402D0 publication Critical patent/SE9602402D0/sv
Priority to EP97850081A priority patent/EP0814587A3/en
Priority to NO19972671A priority patent/NO324413B1/no
Priority to US08/877,160 priority patent/US6088398A/en
Publication of SE9602402L publication Critical patent/SE9602402L/sv
Publication of SE518137C2 publication Critical patent/SE518137C2/sv

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
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
    • 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
    • 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
    • H04L27/26035—Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
SE9602402A 1996-06-18 1996-06-18 Pulsformning och utjämning i multipelsystem med ortogonal frekvensindelning SE518137C2 (sv)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE9602402A SE518137C2 (sv) 1996-06-18 1996-06-18 Pulsformning och utjämning i multipelsystem med ortogonal frekvensindelning
EP97850081A EP0814587A3 (en) 1996-06-18 1997-05-22 Pulse shaping for multicarrier systems
NO19972671A NO324413B1 (no) 1996-06-18 1997-06-11 Ortogonalt frekvensdelt multiplekssystem
US08/877,160 US6088398A (en) 1996-06-18 1997-06-17 Orthogonal frequency division multiplex systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9602402A SE518137C2 (sv) 1996-06-18 1996-06-18 Pulsformning och utjämning i multipelsystem med ortogonal frekvensindelning

Publications (3)

Publication Number Publication Date
SE9602402D0 SE9602402D0 (sv) 1996-06-18
SE9602402L true SE9602402L (sv) 1997-12-19
SE518137C2 SE518137C2 (sv) 2002-09-03

Family

ID=20403054

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9602402A SE518137C2 (sv) 1996-06-18 1996-06-18 Pulsformning och utjämning i multipelsystem med ortogonal frekvensindelning

Country Status (4)

Country Link
US (1) US6088398A (sv)
EP (1) EP0814587A3 (sv)
NO (1) NO324413B1 (sv)
SE (1) SE518137C2 (sv)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6470055B1 (en) 1998-08-10 2002-10-22 Kamilo Feher Spectrally efficient FQPSK, FGMSK, and FQAM for enhanced performance CDMA, TDMA, GSM, OFDN, and other systems
US7079584B2 (en) * 1998-08-10 2006-07-18 Kamilo Feher OFDM, CDMA, spread spectrum, TDMA, cross-correlated and filtered modulation
US7133352B1 (en) * 1999-09-20 2006-11-07 Zion Hadad Bi-directional communication channel
US6074086A (en) * 1999-04-26 2000-06-13 Intellon Corporation Synchronization of OFDM signals with improved windowing
JP4284813B2 (ja) * 2000-02-18 2009-06-24 株式会社デンソー Ｏｆｄｍ用受信装置
US7827581B1 (en) * 2000-02-29 2010-11-02 BE Labs, Inc. Wireless multimedia system
US6396803B2 (en) 2000-06-29 2002-05-28 California Amplifier, Inc. Modulation methods and structures for wireless communication systems and transceivers
US6975585B1 (en) * 2000-07-27 2005-12-13 Conexant Systems, Inc. Slotted synchronous frequency division multiplexing for multi-drop networks
US7054375B2 (en) * 2000-12-22 2006-05-30 Nokia Corporation Method and apparatus for error reduction in an orthogonal modulation system
US7215715B2 (en) 2001-02-06 2007-05-08 Maxim Integrated Products, Inc. System and method of signal wave shaping for spectrum control of an OFDM signal
US7158474B1 (en) 2001-02-21 2007-01-02 At&T Corp. Interference suppressing OFDM system for wireless communications
US6882619B1 (en) 2001-02-21 2005-04-19 At&T Corp. Interference suppressing OFDM method for wireless communications
US7020218B2 (en) * 2001-06-18 2006-03-28 Arnesen David M Sliding-window transform with integrated windowing
KR20030095725A (ko) * 2002-06-14 2003-12-24 삼성전자주식회사 오에프디엠 심볼을 안정적으로 전송할 수 있는 오에프디엠송신기
DE10239810A1 (de) * 2002-08-29 2004-03-11 Siemens Ag Verfahren und Sendeeinrichtung zum Übertragen von Daten in einem Mehrträgersystem
JP2004175052A (ja) * 2002-11-29 2004-06-24 Sony Corp インクジェット被記録媒体、インクジェット画像形成方法及び印画物
US7286620B2 (en) * 2003-09-17 2007-10-23 International Business Machines Corporation Equalizer for reduced intersymbol interference via partial clock switching
US7321550B2 (en) 2004-02-17 2008-01-22 Industrial Technology Research Institute Method of equalization in an OFDM system
US7296045B2 (en) * 2004-06-10 2007-11-13 Hasan Sehitoglu Matrix-valued methods and apparatus for signal processing
US7974358B2 (en) * 2006-05-03 2011-07-05 Industrial Technology Research Institute Orthogonal frequency division multiplexing (OFDM) encoding and decoding methods and systems
KR100752670B1 (ko) 2006-08-25 2007-08-29 삼성전자주식회사 순방향 에러 정정 디코더의 출력을 이용하여 심볼 값을추정하는 ｏｆｄｍ 시스템, 심볼 추정 장치 및 캐리어사이의 간섭 제거 방법
US8908796B1 (en) * 2013-05-15 2014-12-09 University Of South Florida Orthogonal frequency division multiplexing (OFDM) transmitter and receiver windowing for adjacent channel interference (ACI) suppression and rejection
DE102014213815A1 (de) * 2014-07-16 2016-01-21 Siemens Aktiengesellschaft Verfahren zur Begrenzung eines Amplitudenspektrums von Signalanteilen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4881241A (en) * 1988-02-24 1989-11-14 Centre National D'etudes Des Telecommunications Method and installation for digital communication, particularly between and toward moving vehicles
KR0139527B1 (ko) * 1988-10-21 1998-07-01 아르레뜨 다낭제 변조파 전송 방법 및 이 방법을 구현하기 위한 송.수신기
GB9020170D0 (en) * 1990-09-14 1990-10-24 Indep Broadcasting Authority Orthogonal frequency division multiplexing
US5128964A (en) * 1990-10-10 1992-07-07 Intelligent Modem Corporation Modulation method and apparatus for multicarrier data transmission
FR2680061B1 (fr) * 1991-08-02 1993-11-12 Thomson Csf Procede d'emission d'un signal numerise selon une modulation multiporteuse de type ofdm, emetteur et recepteur pour la mise en óoeuvre dudit procede.
US5295138A (en) * 1992-04-21 1994-03-15 Northwest Starscon Limited Partnership Apparatus and method for optimal frequency planning in frequency division multiplexing transmissions
US5285474A (en) * 1992-06-12 1994-02-08 The Board Of Trustees Of The Leland Stanford, Junior University Method for equalizing a multicarrier signal in a multicarrier communication system
US5416767A (en) * 1993-02-08 1995-05-16 U.S. Philips Corporation Method of transmitting a data stream, transmitter and receiver
DE69434353T2 (de) * 1993-12-22 2006-03-09 Koninklijke Philips Electronics N.V. Mehrträger-Frequenzsprungkommunikationssystem
US5790516A (en) * 1995-07-14 1998-08-04 Telefonaktiebolaget Lm Ericsson Pulse shaping for data transmission in an orthogonal frequency division multiplexed system

Also Published As

Publication number Publication date
SE518137C2 (sv) 2002-09-03
NO324413B1 (no) 2007-10-08
NO972671L (no) 1997-12-19
SE9602402D0 (sv) 1996-06-18
US6088398A (en) 2000-07-11
NO972671D0 (no) 1997-06-11
EP0814587A2 (en) 1997-12-29
EP0814587A3 (en) 2001-02-28

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