DE69730414D1 - Anpassung des Schutzintervalls in einem OFDM system - Google Patents

Anpassung des Schutzintervalls in einem OFDM system

Info

Publication number
DE69730414D1
DE69730414D1 DE69730414T DE69730414T DE69730414D1 DE 69730414 D1 DE69730414 D1 DE 69730414D1 DE 69730414 T DE69730414 T DE 69730414T DE 69730414 T DE69730414 T DE 69730414T DE 69730414 D1 DE69730414 D1 DE 69730414D1
Authority
DE
Germany
Prior art keywords
adjustment
ofdm system
protection interval
interval
protection
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
DE69730414T
Other languages
English (en)
Other versions
DE69730414T2 (de
Inventor
Roger Larsson
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.)
Telia AB
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
Application filed by Telia AB filed Critical Telia AB
Application granted granted Critical
Publication of DE69730414D1 publication Critical patent/DE69730414D1/de
Publication of DE69730414T2 publication Critical patent/DE69730414T2/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
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
  • Transmitters (AREA)
DE69730414T 1996-02-14 1997-01-23 Anpassung des Schutzintervalls in einem OFDM system Expired - Lifetime DE69730414T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9600537A SE9600537L (sv) 1996-02-14 1996-02-14 Förfarande och anordning i ett OFDM system med variabel varaktighet av symbolskur
SE9600537 1996-02-14
PCT/SE1997/000109 WO1997030531A1 (en) 1996-02-14 1997-01-23 Improvements in or relating to ofdm systems

Publications (2)

Publication Number Publication Date
DE69730414D1 true DE69730414D1 (de) 2004-09-30
DE69730414T2 DE69730414T2 (de) 2005-09-08

Family

ID=20401385

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69730414T Expired - Lifetime DE69730414T2 (de) 1996-02-14 1997-01-23 Anpassung des Schutzintervalls in einem OFDM system

Country Status (6)

Country Link
EP (1) EP0880837B1 (de)
DE (1) DE69730414T2 (de)
DK (1) DK0880837T3 (de)
NO (1) NO322263B1 (de)
SE (1) SE9600537L (de)
WO (1) WO1997030531A1 (de)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2254301B1 (de) 1998-01-06 2013-06-19 Mosaid Technologies Incorporated System zur Mehrträgermodulation mit veränderbaren Symbolgeschwindigkeiten
US6519291B1 (en) * 1998-02-03 2003-02-11 Lucent Technologies Inc. Reduction of interference in discrete multi-tone (DMT) based communications systems
DE19858106B4 (de) * 1998-12-16 2014-09-25 Telefonaktiebolaget Lm Ericsson (Publ) Empfänger und Verfahren zum Verhindern einer Zwischensymbolstörung in einem Hochgeschwindigkeitsübertragungssystem
JP2000244441A (ja) 1998-12-22 2000-09-08 Matsushita Electric Ind Co Ltd Ｏｆｄｍ送受信装置
FR2794915A1 (fr) * 1999-06-14 2000-12-15 Canon Kk Procede et dispositif d'emission, procede et dispositif de reception, et systemes les mettant en oeuvre
EP1065855A1 (de) * 1999-06-29 2001-01-03 Sony International (Europe) GmbH Anpassung der Schutzintervalle in einem OFDM-Kommunikationssystem
GB2364205B (en) * 2000-06-29 2002-09-18 Piping Hot Networks Ltd Broadband communications
JP3628977B2 (ja) * 2001-05-16 2005-03-16 松下電器産業株式会社 無線基地局装置及び通信端末装置
CA2809894C (en) 2001-06-27 2017-12-12 Skky Incorporated Improved media delivery platform
US7298785B2 (en) 2001-07-04 2007-11-20 Kabushiki Kaisha Toyota Chuo Kenkyusho Multicarrier demodulation method and apparatus, and multicarrier modulation method and apparatus
JP3649326B2 (ja) 2001-11-13 2005-05-18 日本電気株式会社 Ｏｆｄｍ方式のガードインターバル長制御方法及びｏｆｄｍ送受信装置
EP1868338B1 (de) * 2001-11-28 2016-08-31 Fujitsu Limited Multiplex-Übertragungsverfahren mit Orthogonalfrequenzteilung
US8325590B2 (en) * 2002-02-27 2012-12-04 Apple Inc. OFDM communications system
SE527445C2 (sv) 2003-03-25 2006-03-07 Telia Ab Lägesanpassat skyddsintervall för OFDM-kommunikation
US7602696B2 (en) 2003-06-27 2009-10-13 Intel Corporation Adaptive guard intervals in OFDM systems
DE10348818B4 (de) * 2003-10-21 2005-11-10 Universität Hannover Verfahren zur Regelung eines Schutzintervalls von Datenströmen in digitalen Funkübertragungseinrichtungen und Funkempfangsgerät hierzu
JP4291674B2 (ja) 2003-11-11 2009-07-08 株式会社エヌ・ティ・ティ・ドコモ Ｏｆｄｍ送信機及びｏｆｄｍ受信機
JP4583054B2 (ja) 2004-03-05 2010-11-17 株式会社エヌ・ティ・ティ・ドコモ 移動局および基地局
JP4417765B2 (ja) * 2004-04-14 2010-02-17 株式会社エヌ・ティ・ティ・ドコモ 無線伝送システム、無線中継システム、及び通信装置
US8588203B2 (en) * 2004-06-04 2013-11-19 Qualcomm Incorporated Wireless communication system with improved broadcast coverage
US8149685B2 (en) 2004-09-03 2012-04-03 University Of South Florida Covert OFDM transmission using cyclic prefix
JP4444294B2 (ja) 2004-12-14 2010-03-31 富士通株式会社 無線通信装置および通信方法
US7742444B2 (en) 2005-03-15 2010-06-22 Qualcomm Incorporated Multiple other sector information combining for power control in a wireless communication system
US9055552B2 (en) 2005-06-16 2015-06-09 Qualcomm Incorporated Quick paging channel with reduced probability of missed page
US8750908B2 (en) 2005-06-16 2014-06-10 Qualcomm Incorporated Quick paging channel with reduced probability of missed page
KR101003087B1 (ko) * 2005-06-17 2010-12-21 삼성전자주식회사 이동통신 시스템에서 방송 데이터의 송수신 장치 및 방법
WO2006135221A1 (en) * 2005-06-17 2006-12-21 Samsung Electronics Co., Ltd. Apparatus and method for transmitting/receiving broadcast data in a mobile communication system
US20090207790A1 (en) 2005-10-27 2009-08-20 Qualcomm Incorporated Method and apparatus for settingtuneawaystatus in an open state in wireless communication system
KR20080070042A (ko) 2005-10-27 2008-07-29 퀄컴 인코포레이티드 무선 통신 시스템에서 넌-스틱키 할당을 프로세싱하는 방법및 장치
CA2646744C (en) 2006-03-24 2012-08-21 Lg Electronics Inc. Ofdm symbol design for different channel conditions and for backward compatibility with 1xev-do and nxev-do
KR100979598B1 (ko) 2006-06-26 2010-09-01 교세라 가부시키가이샤 Ｏｆｄｍ 통신 장치 및 가드 인터벌 길이 결정 방법
WO2008115105A1 (en) * 2007-03-16 2008-09-25 Telefonaktiebolaget Lm Ericsson (Publ) A method and a device for reduced interference in a cellular access system.
WO2016065169A1 (en) * 2014-10-24 2016-04-28 Interdigital Patent Holdings, Inc. Wlan designs for supporting an outdoor propagation channel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9218874D0 (en) * 1992-09-07 1992-10-21 British Broadcasting Corp Improvements relating to the transmission of frequency division multiplex signals
DE4425713C1 (de) * 1994-07-20 1995-04-20 Inst Rundfunktechnik Gmbh Verfahren zur Vielträger Modulation und Demodulation von digital codierten Daten

Also Published As

Publication number Publication date
NO983589D0 (no) 1998-08-05
SE504897C2 (sv) 1997-05-26
NO322263B1 (no) 2006-09-04
DE69730414T2 (de) 2005-09-08
EP0880837B1 (de) 2004-08-25
SE9600537L (sv) 1997-05-26
WO1997030531A1 (en) 1997-08-21
EP0880837A1 (de) 1998-12-02
DK0880837T3 (da) 2005-01-03
SE9600537D0 (sv) 1996-02-14
NO983589L (no) 1998-10-14

Similar Documents

Publication Publication Date Title
DE69730414D1 (de) Anpassung des Schutzintervalls in einem OFDM system
DE69712250D1 (de) Fernseh-Postsystem
DE59703193D1 (de) Koordinations-system
DE69729472D1 (de) Phonopneumograph system
DE69703236D1 (de) Integriertes gefahrenvermeidungssystem
DE69726292D1 (de) Erdnahen-orbit-startsystem
DE69704485D1 (de) Sichtsystem
BR9704999A (pt) Assento ajustável
DE69529808D1 (de) System zur Blockanwahlaufbereitung und -überprüfung
DE69703127D1 (de) Regelbare Befestigungseinrichtung
ID17405A (id) Sistim elektrokromik
DE69725060D1 (de) Audiosystem
DE69728595D1 (de) Postversandsystem
GB9616594D0 (en) System for the realization of adjustable size composed elements
GB9511675D0 (en) Effect adding system
DE69720887D1 (de) Vorrichtung zur Stabilisierung
DE69700950D1 (de) Verstellbare arbeitsbühne
NO985866D0 (no) Fortoejnings-system
DE59608090D1 (de) Ansaugsystem
DE59504174D1 (de) Zündanlage
FI941720A0 (fi) Ylijännitesuojaus
ATA185196A (de) Ionisator
FI961620A (fi) Vaakalineaarisuuden säätö
KR970002681U (ko) 분체계량장치
AT3511U3 (de) Briefkasten oder briefkastenanlage

Legal Events

Date Code Title Description
8364 No opposition during term of opposition