FI961777A - Laajakaista-FFT-kanavoijaa ja käänteistä FFT-yhdistintä käyttävä lähetin-vastaanotinlaite monikanavatietoliikenneverkkoa varten - Google Patents

Laajakaista-FFT-kanavoijaa ja käänteistä FFT-yhdistintä käyttävä lähetin-vastaanotinlaite monikanavatietoliikenneverkkoa varten Download PDF

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Publication number
FI961777A
FI961777A FI961777A FI961777A FI961777A FI 961777 A FI961777 A FI 961777A FI 961777 A FI961777 A FI 961777A FI 961777 A FI961777 A FI 961777A FI 961777 A FI961777 A FI 961777A
Authority
FI
Finland
Prior art keywords
fft
transmitter
communication network
receiver device
broadband
Prior art date
Application number
FI961777A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI961777A0 (fi
Inventor
Ronald R Carney
Terry L Williams
Original Assignee
Airnet Communications 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 Airnet Communications Corp filed Critical Airnet Communications Corp
Publication of FI961777A0 publication Critical patent/FI961777A0/fi
Publication of FI961777A publication Critical patent/FI961777A/fi

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/04—Frequency-transposition arrangements
    • H04J1/05—Frequency-transposition arrangements using digital techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0004—Modulated-carrier systems using wavelets
    • 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
    • H04L27/2631—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators with polyphase implementation
    • 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
    • H04L27/2652—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators with polyphase implementation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
FI961777A 1993-10-29 1996-04-25 Laajakaista-FFT-kanavoijaa ja käänteistä FFT-yhdistintä käyttävä lähetin-vastaanotinlaite monikanavatietoliikenneverkkoa varten FI961777A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/146,364 US5535240A (en) 1993-10-29 1993-10-29 Transceiver apparatus employing wideband FFT channelizer and inverse FFT combiner for multichannel communication network
PCT/US1994/011815 WO1995012261A1 (fr) 1993-10-29 1994-10-18 Decoupeur en canaux a large bande sur la base de la transformation de fourier rapide

Publications (2)

Publication Number Publication Date
FI961777A0 FI961777A0 (fi) 1996-04-25
FI961777A true FI961777A (fi) 1996-06-26

Family

ID=22517048

Family Applications (1)

Application Number Title Priority Date Filing Date
FI961777A FI961777A (fi) 1993-10-29 1996-04-25 Laajakaista-FFT-kanavoijaa ja käänteistä FFT-yhdistintä käyttävä lähetin-vastaanotinlaite monikanavatietoliikenneverkkoa varten

Country Status (9)

Country Link
US (2) US5535240A (fr)
EP (1) EP0726000A1 (fr)
JP (2) JPH09507618A (fr)
KR (1) KR100338004B1 (fr)
AU (1) AU719898B2 (fr)
CA (1) CA2175242C (fr)
DE (1) DE726000T1 (fr)
FI (1) FI961777A (fr)
WO (1) WO1995012261A1 (fr)

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Also Published As

Publication number Publication date
EP0726000A1 (fr) 1996-08-14
US5848097A (en) 1998-12-08
FI961777A0 (fi) 1996-04-25
US5535240A (en) 1996-07-09
CA2175242C (fr) 1999-02-02
JP2001313545A (ja) 2001-11-09
WO1995012261A1 (fr) 1995-05-04
AU7981894A (en) 1995-05-22
CA2175242A1 (fr) 1995-05-04
JPH09507618A (ja) 1997-07-29
DE726000T1 (de) 1996-12-12
AU719898B2 (en) 2000-05-18
KR100338004B1 (ko) 2002-10-11

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