IT1261364B - Sistema di ricetrasmissione di dati a multiplazione ortogonale con modulatore unico per l'allocazione in frequenza dei sottocanali - Google Patents

Sistema di ricetrasmissione di dati a multiplazione ortogonale con modulatore unico per l'allocazione in frequenza dei sottocanali

Info

Publication number
IT1261364B
IT1261364B ITTO930914A ITTO930914A IT1261364B IT 1261364 B IT1261364 B IT 1261364B IT TO930914 A ITTO930914 A IT TO930914A IT TO930914 A ITTO930914 A IT TO930914A IT 1261364 B IT1261364 B IT 1261364B
Authority
IT
Italy
Prior art keywords
frequency allocation
orthogonal
multiplation
channels
sub
Prior art date
Application number
ITTO930914A
Other languages
English (en)
Inventor
Gianfranco Cariolaro
Original Assignee
Sisvel Spa
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 Sisvel Spa filed Critical Sisvel Spa
Priority to ITTO930914A priority Critical patent/IT1261364B/it
Publication of ITTO930914A0 publication Critical patent/ITTO930914A0/it
Priority to EP94118731A priority patent/EP0656705A3/en
Publication of ITTO930914A1 publication Critical patent/ITTO930914A1/it
Application granted granted Critical
Publication of IT1261364B publication Critical patent/IT1261364B/it

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
    • H04L27/2626—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
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/264—Pulse-shaped multi-carrier, i.e. not using rectangular window
    • H04L27/26416—Filtering per subcarrier, e.g. filterbank multicarrier [FBMC]
    • 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
    • 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
    • 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
    • H04L27/26534—Pulse-shaped multi-carrier, i.e. not using rectangular window
    • H04L27/2654—Filtering per subcarrier, e.g. filterbank multicarrier [FBMC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

Viene descritto un sistema di ricetrasmissione di dati via radio a modulazione di ampiezza in quadratura a multiplazione ortogonale (OQAM), in cui una pluralità di sottocanali occupano frequenze ugualmente spaziate e l'allocazione in frequenza dei sottocanali nel trasmettitore viene realizzata mediante un unico modulatore con portante multitono e nel ricevitore i singoli sottocanali vengono riportati nella banda originaria mediante un unico demodulatore con portante multitono.
ITTO930914A 1993-12-01 1993-12-01 Sistema di ricetrasmissione di dati a multiplazione ortogonale con modulatore unico per l'allocazione in frequenza dei sottocanali IT1261364B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITTO930914A IT1261364B (it) 1993-12-01 1993-12-01 Sistema di ricetrasmissione di dati a multiplazione ortogonale con modulatore unico per l'allocazione in frequenza dei sottocanali
EP94118731A EP0656705A3 (en) 1993-12-01 1994-11-29 Orthogonal frequency multiplexing system.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO930914A IT1261364B (it) 1993-12-01 1993-12-01 Sistema di ricetrasmissione di dati a multiplazione ortogonale con modulatore unico per l'allocazione in frequenza dei sottocanali

Publications (3)

Publication Number Publication Date
ITTO930914A0 ITTO930914A0 (it) 1993-12-01
ITTO930914A1 ITTO930914A1 (it) 1995-06-01
IT1261364B true IT1261364B (it) 1996-05-20

Family

ID=11411912

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO930914A IT1261364B (it) 1993-12-01 1993-12-01 Sistema di ricetrasmissione di dati a multiplazione ortogonale con modulatore unico per l'allocazione in frequenza dei sottocanali

Country Status (2)

Country Link
EP (1) EP0656705A3 (it)
IT (1) IT1261364B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1271322B (it) * 1994-12-23 1997-05-27 Italtel Spa Sistema e metodo di demodulazione per ricevitori ofdm
GB2304504A (en) * 1995-08-19 1997-03-19 Northern Telecom Ltd OFDM receiver includes digital filter
SE519683C2 (sv) * 1998-05-26 2003-04-01 Nera Asa Anordning för modulering och demodulering i ett flerkanalssystem
SE519682C2 (sv) * 1998-05-26 2003-04-01 Nera Asa Digital demodulator i ett flerkanalssystem
WO2009018980A2 (de) * 2007-08-03 2009-02-12 Oliver Bartels Funkgerät mit mehrträgerübertragung
EP3032791B1 (en) * 2014-12-08 2017-09-06 Vodafone GmbH Orthogonal multicarrier transmission system using conjugate-root offset-QAM

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1273794B (it) * 1994-02-22 1997-07-10 Italtel Spa Sistema con multiplazione ortogonale a divisione di frequenza (ofdm) per la trasmissione di sequenze di dati
IT1273793B (it) * 1994-02-22 1997-07-10 Italtel Spa Sistema composito a multiplazione ortogonale a divisione di frequenza (ofdm) per la trasmissione di sequenze di dati

Also Published As

Publication number Publication date
EP0656705A2 (en) 1995-06-07
ITTO930914A0 (it) 1993-12-01
EP0656705A3 (en) 1997-07-23
ITTO930914A1 (it) 1995-06-01

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Legal Events

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0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961230