CA2220107A1 - Construction of a multicarrier signal - Google Patents

Construction of a multicarrier signal

Info

Publication number
CA2220107A1
CA2220107A1 CA002220107A CA2220107A CA2220107A1 CA 2220107 A1 CA2220107 A1 CA 2220107A1 CA 002220107 A CA002220107 A CA 002220107A CA 2220107 A CA2220107 A CA 2220107A CA 2220107 A1 CA2220107 A1 CA 2220107A1
Authority
CA
Canada
Prior art keywords
carriers
signal
tau
spectrum
spacing
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.)
Granted
Application number
CA002220107A
Other languages
French (fr)
Other versions
CA2220107C (en
Inventor
Michel Alard
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.)
CIVILE MICHEL ALARD Ste
Telediffusion de France ets Public de Diffusion
Orange SA
Original Assignee
Michel Alard
France Telecom
Telediffusion De France
Societe Civile Michel Alard
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 FR9505455A external-priority patent/FR2733869B1/en
Application filed by Michel Alard, France Telecom, Telediffusion De France, Societe Civile Michel Alard filed Critical Michel Alard
Publication of CA2220107A1 publication Critical patent/CA2220107A1/en
Application granted granted Critical
Publication of CA2220107C publication Critical patent/CA2220107C/en
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
    • H04L27/0004—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
    • H04L27/2602—Signal structure
    • 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
    • H04L27/26534—Pulse-shaped multi-carrier, i.e. not using rectangular window
    • H04L27/2654—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
    • H04L27/2697—Multicarrier modulation systems in combination with other modulation techniques
    • H04L27/2698—Multicarrier modulation systems in combination with other modulation techniques double density OFDM/OQAM system, e.g. OFDM/OQAM-IOTA system
    • 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
    • H04L27/26035—Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

The invention concerns a multicarrier signal designed to be transmitted to digital receivers, especially in a non-stationary transmission channel, corresponding to the frequency multiplexing of several elementary carriers each corresponding to a series of symbols, two consecutive symbols being separated by a symbol time .tau.0, a signal in which, firstly, the spacing v0 between two neighboring carriers is equal to half of the reverse of the symbol time .tau.0 and, secondly, each carrier undergoes an operation of filtering for the shaping of its spectrum having a bandwidth strictly greater than twice said spacing between carriers vo and is spectrum is chosen so that each symbol element is highly concentrated in the temporal domain and in the frequency domain.
The invention also concerns the methods for the transmission and reception of such a signal.
CA002220107A 1995-05-02 1996-04-30 Construction of a multicarrier signal Expired - Lifetime CA2220107C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9505455A FR2733869B1 (en) 1995-05-02 1995-05-02 MULTI-CARRIER SIGNAL, METHOD FOR CONSTRUCTING SUCH A SIGNAL AND CORRESPONDING TRANSMISSION AND RECEPTION METHODS
FR95/05455 1995-05-02
PCT/FR1996/000661 WO1996035278A1 (en) 1995-05-02 1996-04-30 Construction of a multicarrier signal

Publications (2)

Publication Number Publication Date
CA2220107A1 true CA2220107A1 (en) 1996-11-07
CA2220107C CA2220107C (en) 2007-03-06

Family

ID=37891583

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002220107A Expired - Lifetime CA2220107C (en) 1995-05-02 1996-04-30 Construction of a multicarrier signal

Country Status (1)

Country Link
CA (1) CA2220107C (en)

Also Published As

Publication number Publication date
CA2220107C (en) 2007-03-06

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Legal Events

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Effective date: 20160502