SE9602242D0 - Method for adaptively updating frequency domain equalizer parameters in a multicarrir system - Google Patents

Method for adaptively updating frequency domain equalizer parameters in a multicarrir system

Info

Publication number
SE9602242D0
SE9602242D0 SE9602242A SE9602242A SE9602242D0 SE 9602242 D0 SE9602242 D0 SE 9602242D0 SE 9602242 A SE9602242 A SE 9602242A SE 9602242 A SE9602242 A SE 9602242A SE 9602242 D0 SE9602242 D0 SE 9602242D0
Authority
SE
Sweden
Prior art keywords
auxiliary device
fed
output signal
modifying
multicarrir
Prior art date
Application number
SE9602242A
Other languages
Swedish (sv)
Inventor
Mikael Isaksson
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
Priority to SE9602242A priority Critical patent/SE9602242D0/en
Publication of SE9602242D0 publication Critical patent/SE9602242D0/en
Priority to SE9603197A priority patent/SE506644C2/en

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

The modifying auxiliary device is used to modify the compensation parameters in small stages so that an equalisation auxiliary device converges in the inverted channel model. An output signal (U) from the auxiliary device is fed to a detector/quantifying auxiliary device, and an output signal (Y) from the detector/quantifying auxiliary device is fed to a first input on the modifying auxiliary device. An output signal (EQ) from the modifying auxiliary device is fed to the compensating auxiliary device. The output signal, Y, is fed to a symbol decoding auxiliary device which produces a decoded data flow. The modifying auxiliary device is operatively connected to a variance value calculating auxiliary device, which is arranged to produce a signal (W) which indicates an interference variance on each of the carrier waves in the multiple carrier wave system.
SE9602242A 1996-06-04 1996-06-04 Method for adaptively updating frequency domain equalizer parameters in a multicarrir system SE9602242D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9602242A SE9602242D0 (en) 1996-06-04 1996-06-04 Method for adaptively updating frequency domain equalizer parameters in a multicarrir system
SE9603197A SE506644C2 (en) 1996-06-04 1996-09-02 Channel value calculating and equalisation system for use in multiple carrier wave system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9602242A SE9602242D0 (en) 1996-06-04 1996-06-04 Method for adaptively updating frequency domain equalizer parameters in a multicarrir system
SE9603197A SE506644C2 (en) 1996-06-04 1996-09-02 Channel value calculating and equalisation system for use in multiple carrier wave system

Publications (1)

Publication Number Publication Date
SE9602242D0 true SE9602242D0 (en) 1996-06-04

Family

ID=26662669

Family Applications (2)

Application Number Title Priority Date Filing Date
SE9602242A SE9602242D0 (en) 1996-06-04 1996-06-04 Method for adaptively updating frequency domain equalizer parameters in a multicarrir system
SE9603197A SE506644C2 (en) 1996-06-04 1996-09-02 Channel value calculating and equalisation system for use in multiple carrier wave system

Family Applications After (1)

Application Number Title Priority Date Filing Date
SE9603197A SE506644C2 (en) 1996-06-04 1996-09-02 Channel value calculating and equalisation system for use in multiple carrier wave system

Country Status (1)

Country Link
SE (2) SE9602242D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE521276C2 (en) * 1999-11-18 2003-10-14 Ericsson Telefon Ab L M Multi-carrier type transmission system

Also Published As

Publication number Publication date
SE9603197L (en) 1997-12-07
SE9603197D0 (en) 1996-09-02
SE506644C2 (en) 1998-01-26

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