WO2010143926A3 - Dft spread ofdm 시스템을 위한 레퍼런스 심볼 구조 - Google Patents
Dft spread ofdm 시스템을 위한 레퍼런스 심볼 구조 Download PDFInfo
- 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
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data
- reference symbol
- ofdm system
- spread ofdm
- symbol structure
- Prior art date
Links
Classifications
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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
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- 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
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- 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
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.
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 |
---|---|---|---|
KR10-2009-0052208 | 2009-06-12 | ||
KR20090052208 | 2009-06-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010143926A2 WO2010143926A2 (ko) | 2010-12-16 |
WO2010143926A3 true WO2010143926A3 (ko) | 2011-03-31 |
Family
ID=43309396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2010/003814 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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CN107005981B (zh) | 2014-11-24 | 2021-01-22 | 瑞典爱立信有限公司 | 在所确定的第三时频资源集合中的传输和接收 |
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WO2017153699A1 (fr) * | 2016-03-11 | 2017-09-14 | Orange | Procédé et dispositif de transmission multi services avec modulation fc-ofdm et récepteur correspondant |
TW201806349A (zh) | 2016-08-10 | 2018-02-16 | Idac控股公司 | 具單載頻域多存取(sc-fdma)及ofdma彈性參考訊號傳輸方法 |
US10243773B1 (en) | 2017-06-30 | 2019-03-26 | Genghiscomm Holdings, LLC | Efficient peak-to-average-power reduction for OFDM and MIMO-OFDM |
US10637705B1 (en) | 2017-05-25 | 2020-04-28 | Genghiscomm Holdings, LLC | Peak-to-average-power reduction for OFDM multiple access |
KR102457566B1 (ko) * | 2018-02-22 | 2022-10-21 | 한국전자통신연구원 | 데이터 패킷의 버스트의 길이에 기초하여 변복조를 수행하는 변복조기 및 상기 복조기가 수행하는 방법 |
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2010
- 2010-06-14 WO PCT/KR2010/003814 patent/WO2010143926A2/ko active Application Filing
- 2010-06-14 US US13/377,720 patent/US8891662B2/en active Active
- 2010-06-14 KR KR1020100055935A patent/KR101615385B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
KR20100133918A (ko) | 2010-12-22 |
KR101615385B1 (ko) | 2016-04-25 |
US8891662B2 (en) | 2014-11-18 |
US20120087393A1 (en) | 2012-04-12 |
WO2010143926A2 (ko) | 2010-12-16 |
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