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CFO AND DCO DISTORTION AMOUNT ESTIMATION METHOD, AND RECEPTION SIGNAL CORRECTION METHOD AND RECEPTION DEVICE USING THE METHOD

外国特許コード F110002657
整理番号 S2008-0078-C0
掲載日 2011年4月6日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2008JP070141
国際公開番号 WO 2009/060874
国際出願日 平成20年11月5日(2008.11.5)
国際公開日 平成21年5月14日(2009.5.14)
優先権データ
  • 特願2007-287771 (2007.11.5) JP
発明の名称 (英語) CFO AND DCO DISTORTION AMOUNT ESTIMATION METHOD, AND RECEPTION SIGNAL CORRECTION METHOD AND RECEPTION DEVICE USING THE METHOD
発明の概要(英語) Provided is a distortion amount estimation method for correcting a CFO and a DCO to improve an SNR in a reception signal received from a transmission system, which in turn improves the error rate. Here, a method using a pilot signal or a blind method may be used to estimate and correct the CFO and the DCO. However, estimation of the CFO under existence of the DCO requires an enormous volume of calculation such as the ML method or it is impossible to effectively remove an error from an estimated value. A reception signal is affected by a transmission system. When continuous symbols of a cyclic pilot signal are observed on the frequency axis, the phase is shifted by the CFO. Accordingly, it is possible to analytically acquire the CFO from the continuous symbols of the cyclic pilot signal. This enables estimation of the DCO and correction of the CFO and the DCO.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • Osaka Prefecture University Public Corporation
  • 発明者(英語)
  • LIN, Hai
  • YAMASHITA, Katsumi
国際特許分類(IPC)
指定国 AE(UTILITY MODEL),AG,AL(UTILITY MODEL),AM(PROVISIONAL PATENT)(UTILITY MODEL),AO(UTILITY MODEL),AT(UTILITY MODEL),AU,AZ(UTILITY MODEL),BA,BB,BG(UTILITY MODEL),BH(UTILITY MODEL),BR(UTILITY MODEL),BW(UTILITY MODEL),BY(UTILITY MODEL),BZ(UTILITY MODEL),CA,CH,CN(UTILITY MODEL),CO(UTILITY MODEL),CR(UTILITY MODEL),CU(INVENTOR'S CERTIFICATE),CZ(UTILITY MODEL),DE(UTILITY MODEL),DK(UTILITY MODEL),DM(UTILITY MODEL),DO(UTILITY MODEL),DZ,EC(UTILITY MODEL),EE(UTILITY MODEL),EG(UTILITY MODEL),ES(UTILITY MODEL),FI(UTILITY MODEL),GB,GD,GE(UTILITY MODEL),GH(UTILITY CERTIFICATE),GM,GT(UTILITY MODEL),HN,HR(CONSENSUAL PATENT),HU(UTILITY MODEL),ID,IL,IN,IS,JP(UTILITY MODEL),KE(UTILITY MODEL),KG(UTILITY MODEL),KM,KN,KP(INVENTOR'S CERTIFICATE)(UTILITY MODEL),KR(UTILITY MODEL),KZ(PROVISIONAL PATENT)(UTILITY MODEL),LA,LC,LK,LR,LS(UTILITY MODEL),LT,LU,LY,MA,MD(UTILITY MODEL),ME(PETTY PATENT),MG,MK,MN,MW,MX(UTILITY MODEL),MY(UTILITY-INNOVATION),MZ(UTILITY MODEL),NA,NG,NI(UTILITY MODEL),NO,NZ,OM(UTILITY MODEL),PG,PH(UTILITY MODEL),PL(UTILITY MODEL),PT(UTILITY MODEL),RO,RS(PETTY PATENT),RU(UTILITY MODEL),SC,SD,SE,SG,SK(UTILITY MODEL),SL(UTILITY MODEL),SM,ST,SV(UTILITY MODEL),SY,TJ(UTILITY MODEL),TM(PROVISIONAL PATENT),TN,TR(UTILITY MODEL),TT(UTILITY CERTIFICATE),TZ,UA(UTILITY MODEL),UG(UTILITY CERTIFICATE),US,UZ(UTILITY MODEL),VC(UTILITY CERTIFICATE),VN(PATENT FOR UTILITY SOLUTION),ZA,ZM,ZW,EP(AT,BE,BG,CH,CY,CZ,DE,DK,EE,ES,FI,FR,GB,GR,HR,HU,IE,IS,IT,LT,LU,LV,MC,MT,NL,NO,PL,PT,RO,SE,SI,SK,TR),OA(BF(UTILITY MODEL),BJ(UTILITY MODEL),CF(UTILITY MODEL),CG(UTILITY MODEL),CI(UTILITY MODEL),CM(UTILITY MODEL),GA(UTILITY MODEL),GN(UTILITY MODEL),GQ(UTILITY MODEL),GW(UTILITY MODEL),ML(UTILITY MODEL),MR(UTILITY MODEL),NE(UTILITY MODEL),SN(UTILITY MODEL),TD(UTILITY MODEL),TG(UTILITY MODEL)),AP(BW(UTILITY MODEL),GH(UTILITY MODEL),GM(UTILITY MODEL),KE(UTILITY MODEL),LS(UTILITY MODEL),MW(UTILITY MODEL),MZ(UTILITY MODEL),NA(UTILITY MODEL),SD(UTILITY MODEL),SL(UTILITY MODEL),SZ(UTILITY MODEL),TZ(UTILITY MODEL),UG(UTILITY MODEL),ZM(UTILITY MODEL),ZW(UTILITY MODEL)),EA(AM,AZ,BY,KG,KZ,MD,RU,TJ,TM)

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