NO990772L - Mottaker og transceiver for anvendelse i et multi-bµrer transmisjonssystem og fremgangsmÕte for Õ digitalisere et analogt multi-bµrersignal - Google Patents

Mottaker og transceiver for anvendelse i et multi-bµrer transmisjonssystem og fremgangsmÕte for Õ digitalisere et analogt multi-bµrersignal

Info

Publication number
NO990772L
NO990772L NO990772A NO990772A NO990772L NO 990772 L NO990772 L NO 990772L NO 990772 A NO990772 A NO 990772A NO 990772 A NO990772 A NO 990772A NO 990772 L NO990772 L NO 990772L
Authority
NO
Norway
Prior art keywords
carrier
transmission system
analog
low probability
digitizing
Prior art date
Application number
NO990772A
Other languages
English (en)
Other versions
NO990772D0 (no
Inventor
Mikael Isaksson
Magnus Johansson
Harry Tonvall
Lennart Olsson
Tomas Stefansson
Hans Ihman
Gunnar Bahlenberg
Anders Isaksson
G Ran Ikvist
Lis-Marie Ljunggren
M Tomas Nordstr
Lars-Ke Isaksson
Daniel Bengtsson
Siwert Hokansson
Ye Wen
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
Priority claimed from SE9603192A external-priority patent/SE506639C2/sv
Application filed by Telia Ab filed Critical Telia Ab
Publication of NO990772D0 publication Critical patent/NO990772D0/no
Publication of NO990772L publication Critical patent/NO990772L/no

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • External Artificial Organs (AREA)
  • Dc Digital Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Transceivers (AREA)

Abstract

Idet et multibærersignal mottas, samples det og digitali- seres før FFT-prosessering (eller wavelet transformerings- prosessering). Multibærersignaler består av mange smale båndbølgebærere som overfører data via en bredbåndskanal. Amplitydefordelingen av summen av alle de individuelle bærere er Gausiansk. Dette betyr at høye amplidyder fore- kommer med lav sannsynlighet. For tiden har analoge til digitale omdannere et begrenset dynamisk område. Det er derfor normalt praksis å tilveiebringe et kompromiss mellom kutting og kvantifiseringstøy. Dette betyr at ugunstige effekter på grov kvantifisering må balanseres mot signal- forstyrrelser forårsaket av tap av lav-sannsynlighets høyamplitydesignaler.
NO990772A 1996-09-02 1999-02-19 Mottaker og transceiver for anvendelse i et multi-bµrer transmisjonssystem og fremgangsmÕte for Õ digitalisere et analogt multi-bµrersignal NO990772L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9603192A SE506639C2 (sv) 1996-05-24 1996-09-02 Förbättringar av, eller med avseende på, multibärvågssystem
PCT/SE1997/001455 WO1998010550A2 (en) 1996-09-02 1997-09-01 Improvements in, or relating to, multi-carrier transmission systems

Publications (2)

Publication Number Publication Date
NO990772D0 NO990772D0 (no) 1999-02-19
NO990772L true NO990772L (no) 1999-04-29

Family

ID=20403750

Family Applications (1)

Application Number Title Priority Date Filing Date
NO990772A NO990772L (no) 1996-09-02 1999-02-19 Mottaker og transceiver for anvendelse i et multi-bµrer transmisjonssystem og fremgangsmÕte for Õ digitalisere et analogt multi-bµrersignal

Country Status (7)

Country Link
US (1) US6466629B1 (no)
EP (1) EP0923823B1 (no)
JP (1) JP4130995B2 (no)
AT (1) ATE227913T1 (no)
DE (1) DE69717128T2 (no)
NO (1) NO990772L (no)
WO (1) WO1998010550A2 (no)

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US8144572B2 (en) * 2004-09-14 2012-03-27 Qualcomm Incorporated Detection and mitigation of interference and jammers in an OFDM system
US8233554B2 (en) 2010-03-29 2012-07-31 Eices Research, Inc. Increased capacity communications for OFDM-based wireless communications systems/methods/devices
US7876845B2 (en) * 2005-06-22 2011-01-25 Eices Research, Inc. Wireless communications systems and/or methods providing low interference, high privacy and/or cognitive flexibility
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SE500986C2 (sv) 1993-07-20 1994-10-17 Telia Ab Förfarande och anordning för synkronisering i digitalt transmissionssystem av typen OFDM

Also Published As

Publication number Publication date
ATE227913T1 (de) 2002-11-15
DE69717128T2 (de) 2003-07-10
NO990772D0 (no) 1999-02-19
JP2000517509A (ja) 2000-12-26
EP0923823A2 (en) 1999-06-23
JP4130995B2 (ja) 2008-08-13
EP0923823B1 (en) 2002-11-13
US6466629B1 (en) 2002-10-15
WO1998010550A2 (en) 1998-03-12
WO1998010550A3 (en) 1998-06-18
DE69717128D1 (de) 2002-12-19

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