WO2012064030A3 - Ofdm 시스템 주파수 센싱 방법 및 장치 - Google Patents

Ofdm 시스템 주파수 센싱 방법 및 장치 Download PDF

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Publication number
WO2012064030A3
WO2012064030A3 PCT/KR2011/007963 KR2011007963W WO2012064030A3 WO 2012064030 A3 WO2012064030 A3 WO 2012064030A3 KR 2011007963 W KR2011007963 W KR 2011007963W WO 2012064030 A3 WO2012064030 A3 WO 2012064030A3
Authority
WO
WIPO (PCT)
Prior art keywords
frequency
ofdm systems
sensing
sensing frequency
ofdm
Prior art date
Application number
PCT/KR2011/007963
Other languages
English (en)
French (fr)
Other versions
WO2012064030A2 (ko
Inventor
조상인
강규민
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 US13/884,175 priority Critical patent/US9191259B2/en
Publication of WO2012064030A2 publication Critical patent/WO2012064030A2/ko
Publication of WO2012064030A3 publication Critical patent/WO2012064030A3/ko

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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
    • H04L27/2647—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
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0006—Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio

Abstract

본 발명은 OFDM(Othorgonal Frequency Division Multiplexing) 시스템 주파수 센싱 방법 및 장치에 관련된 것으로, 복수의 무선 통신 중 하나를 수행하기 위하여 외부로부터 수신되는 수신 신호의 주파수를 센싱하는 방법에 관한 것이다. OFDM 장치는 복수의 무선 통신 중 하나를 수행하기 전 또는 후에 필요한 주파수 대역을 검사하고, 다른 무선 통신에 의해 상기 주파수 대역이 사용되고 있는 지를 판단할 필요가 있다.
PCT/KR2011/007963 2010-11-08 2011-10-25 Ofdm 시스템 주파수 센싱 방법 및 장치 WO2012064030A2 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/884,175 US9191259B2 (en) 2010-11-08 2011-10-25 Method and device for sensing frequency for OFDM systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100110440A KR101455841B1 (ko) 2010-11-08 2010-11-08 Ｏｆｄｍ시스템 주파수 센싱 방법 및 장치
KR10-2010-0110440 2010-11-08

Publications (2)

Publication Number Publication Date
WO2012064030A2 WO2012064030A2 (ko) 2012-05-18
WO2012064030A3 true WO2012064030A3 (ko) 2012-07-19

Family

ID=46051371

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/007963 WO2012064030A2 (ko) 2010-11-08 2011-10-25 Ofdm 시스템 주파수 센싱 방법 및 장치

Country Status (3)

Country Link
US (1) US9191259B2 (ko)
KR (1) KR101455841B1 (ko)
WO (1) WO2012064030A2 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101455841B1 (ko) 2010-11-08 2014-11-03 한국전자통신연구원 Ｏｆｄｍ시스템 주파수 센싱 방법 및 장치
KR101492117B1 (ko) * 2013-06-26 2015-02-10 한국도로공사 유도초음파를 이용한 강관보강다단 그라우팅 천공홀의 건전도 평가 방법 및 시스템
KR20160001451A (ko) * 2014-06-27 2016-01-06 한국전자통신연구원 압축센싱을 이용한 직교 주파수 분할 다중 방식 기반 네트워크 장치 및 그 압축 및 복원 방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050265219A1 (en) * 2004-05-11 2005-12-01 Texas Instruments Incorporated Orthogonal frequency division multiplex (OFDM) packet detect unit, method of detecting an OFDM packet and OFDM receiver employing the same
WO2008010283A1 (fr) * 2006-07-20 2008-01-24 Mitsubishi Electric Corporation Appareil de détection de signal
US20090161774A1 (en) * 2005-11-07 2009-06-25 Hang Liu Apparatus and Method for Dynamic Frequency Selection in ofdm Networks
US20090262849A1 (en) * 2008-04-21 2009-10-22 Core Logic, Inc. Universal Blind Mode Detector, Guard Mode Detector of The Universal Blind Mode Detector, and Method of Detecting Universal Blind Mode

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6043771A (en) * 1998-12-21 2000-03-28 Trw Inc. Compact, sensitive, low power device for broadband radar detection
US6163276A (en) * 1999-05-17 2000-12-19 Cellnet Data Systems, Inc. System for remote data collection
US6914876B2 (en) 2002-12-16 2005-07-05 Motorola, Inc. Method for dynamic frequency selection
KR101397111B1 (ko) 2006-02-14 2014-05-19 한국전자통신연구원 인지 무선 시스템에서의 스펙트럼 센싱 방법, 전송휴지기간배치 방법, 이를 위한 단말, 기지국 및 슈퍼프레임 구조
KR101491972B1 (ko) * 2008-04-30 2015-02-12 삼성전자주식회사 이종 통신 시스템간 동작 주파수 공유를 위한 주파수 감지 장치 및 방법
KR101455841B1 (ko) 2010-11-08 2014-11-03 한국전자통신연구원 Ｏｆｄｍ시스템 주파수 센싱 방법 및 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050265219A1 (en) * 2004-05-11 2005-12-01 Texas Instruments Incorporated Orthogonal frequency division multiplex (OFDM) packet detect unit, method of detecting an OFDM packet and OFDM receiver employing the same
US20090161774A1 (en) * 2005-11-07 2009-06-25 Hang Liu Apparatus and Method for Dynamic Frequency Selection in ofdm Networks
WO2008010283A1 (fr) * 2006-07-20 2008-01-24 Mitsubishi Electric Corporation Appareil de détection de signal
US20090262849A1 (en) * 2008-04-21 2009-10-22 Core Logic, Inc. Universal Blind Mode Detector, Guard Mode Detector of The Universal Blind Mode Detector, and Method of Detecting Universal Blind Mode

Also Published As

Publication number Publication date
KR20120048941A (ko) 2012-05-16
WO2012064030A2 (ko) 2012-05-18
US9191259B2 (en) 2015-11-17
KR101455841B1 (ko) 2014-11-03
US20130223575A1 (en) 2013-08-29

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