WO2012053859A3 - Apparatus and method for transceiving data - Google Patents

Apparatus and method for transceiving data Download PDF

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Publication number
WO2012053859A3
WO2012053859A3 PCT/KR2011/007890 KR2011007890W WO2012053859A3 WO 2012053859 A3 WO2012053859 A3 WO 2012053859A3 KR 2011007890 W KR2011007890 W KR 2011007890W WO 2012053859 A3 WO2012053859 A3 WO 2012053859A3
Authority
WO
WIPO (PCT)
Prior art keywords
signals
real signals
modulated
real
angle
Prior art date
Application number
PCT/KR2011/007890
Other languages
French (fr)
Korean (ko)
Other versions
WO2012053859A2 (en
Inventor
임종수
Original Assignee
한국전자통신연구원
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 한국전자통신연구원 filed Critical 한국전자통신연구원
Priority to US13/882,075 priority Critical patent/US9083592B2/en
Priority claimed from KR1020110107788A external-priority patent/KR101789334B1/en
Publication of WO2012053859A2 publication Critical patent/WO2012053859A2/en
Publication of WO2012053859A3 publication Critical patent/WO2012053859A3/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
    • H04L27/2614—Peak power aspects
    • H04L27/2623—Reduction thereof by clipping
    • 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
    • H04L27/263—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators modification of IFFT/IDFT modulator for performance improvement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • 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
    • H04L27/2651—Modification of fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators for performance improvement

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)
  • Transmitters (AREA)

Abstract

The invention relates to a data-transmitting apparatus which symbol-maps a plurality of input data signals to generate a plurality of modulated data symbols, converts the plurality of modulated data symbols into real signals of a time domain in a frequency domain and angle-modulates the real signals, controls the sizes of sine signals for the real signals which are angle-modulated to gains varying in accordance with a control signal, and transmits the real signals.
PCT/KR2011/007890 2010-10-22 2011-10-21 Apparatus and method for transceiving data WO2012053859A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/882,075 US9083592B2 (en) 2010-10-22 2011-10-21 Apparatus and method for transceiving data

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20100103439 2010-10-22
KR10-2010-0103439 2010-10-22
KR10-2011-0107788 2011-10-21
KR1020110107788A KR101789334B1 (en) 2010-10-22 2011-10-21 Apparatus and method for transmitting and receiving data

Publications (2)

Publication Number Publication Date
WO2012053859A2 WO2012053859A2 (en) 2012-04-26
WO2012053859A3 true WO2012053859A3 (en) 2012-06-21

Family

ID=45975762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/007890 WO2012053859A2 (en) 2010-10-22 2011-10-21 Apparatus and method for transceiving data

Country Status (1)

Country Link
WO (1) WO2012053859A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090040914A (en) * 2006-08-16 2009-04-27 해리스 코포레이션 System and method for applying frequency domain spreading to multi-carrier communications signals
JP2010050936A (en) * 2008-08-25 2010-03-04 Ntt Docomo Inc User apparatus, base station apparatus, and method for controlling communication

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090040914A (en) * 2006-08-16 2009-04-27 해리스 코포레이션 System and method for applying frequency domain spreading to multi-carrier communications signals
JP2010050936A (en) * 2008-08-25 2010-03-04 Ntt Docomo Inc User apparatus, base station apparatus, and method for controlling communication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BYOUNG-JO CHOI ET AL.: "Crest Factors of 16-QAM Modulated Multicode MC-CDMA Signals Employing Complementary Sequences", JOURNAL OF KICS, vol. 31, September 2006 (2006-09-01), pages 817 - 824 *

Also Published As

Publication number Publication date
WO2012053859A2 (en) 2012-04-26

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