WO2010143926A3 - Dft spread ofdm 시스템을 위한 레퍼런스 심볼 구조 - Google Patents

Dft spread ofdm 시스템을 위한 레퍼런스 심볼 구조 Download PDF

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Publication number
WO2010143926A3
WO2010143926A3 PCT/KR2010/003814 KR2010003814W WO2010143926A3 WO 2010143926 A3 WO2010143926 A3 WO 2010143926A3 KR 2010003814 W KR2010003814 W KR 2010003814W WO 2010143926 A3 WO2010143926 A3 WO 2010143926A3
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WO
WIPO (PCT)
Prior art keywords
data
reference symbol
ofdm system
spread ofdm
symbol structure
Prior art date
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Ceased
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PCT/KR2010/003814
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English (en)
French (fr)
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WO2010143926A2 (ko
Inventor
정병장
서방원
안재영
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Electronics and Telecommunications Research Institute ETRI
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Electronics and Telecommunications Research Institute ETRI
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Priority to US13/377,720 priority Critical patent/US8891662B2/en
Publication of WO2010143926A2 publication Critical patent/WO2010143926A2/ko
Publication of WO2010143926A3 publication Critical patent/WO2010143926A3/ko
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • 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
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607—Cyclic extensions
    • 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
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

레퍼런스 심볼과 데이터 심볼을 주파수 분할 다중화하여 생성된 레퍼런스 OFDM 심볼을 전송하는 데이터 전송 장치 및 상기 레퍼런스 ODFM 심볼을 이용하여 채널을 추정하는 데이터 수신 장치가 개시된다. 레퍼런스 심볼과 데이터 심볼이 주파수 다중화되어 PAPR이 크게 증가하지 않으면서도, 데이터 전송 장치가 더 자주 레퍼런스 OFDM 심볼을 데이터 수신 장치로 전송할 수 있으므로, 데이터 수신 장치는 정확하게 채널을 추정할 수 있다.
PCT/KR2010/003814 2009-06-12 2010-06-14 Dft spread ofdm 시스템을 위한 레퍼런스 심볼 구조 Ceased WO2010143926A2 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/377,720 US8891662B2 (en) 2009-06-12 2010-06-14 Reference symbol structure for DFT spread OFDM system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20090052208 2009-06-12
KR10-2009-0052208 2009-06-12

Publications (2)

Publication Number Publication Date
WO2010143926A2 WO2010143926A2 (ko) 2010-12-16
WO2010143926A3 true WO2010143926A3 (ko) 2011-03-31

Family

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PCT/KR2010/003814 Ceased WO2010143926A2 (ko) 2009-06-12 2010-06-14 Dft spread ofdm 시스템을 위한 레퍼런스 심볼 구조

Country Status (3)

Country Link
US (1) US8891662B2 (ko)
KR (1) KR101615385B1 (ko)
WO (1) WO2010143926A2 (ko)

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Also Published As

Publication number Publication date
WO2010143926A2 (ko) 2010-12-16
KR101615385B1 (ko) 2016-04-25
US8891662B2 (en) 2014-11-18
US20120087393A1 (en) 2012-04-12
KR20100133918A (ko) 2010-12-22

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