WO2009060874A1 - Ｃｆｏ、ｄｃｏのひずみ量推定方法およびこれを用いた受信信号補正方法、受信装置 - Google Patents

Ｃｆｏ、ｄｃｏのひずみ量推定方法およびこれを用いた受信信号補正方法、受信装置 Download PDF

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Publication number
WO2009060874A1
WO2009060874A1 PCT/JP2008/070141 JP2008070141W WO2009060874A1 WO 2009060874 A1 WO2009060874 A1 WO 2009060874A1 JP 2008070141 W JP2008070141 W JP 2008070141W WO 2009060874 A1 WO2009060874 A1 WO 2009060874A1
Authority
WO
WIPO (PCT)
Prior art keywords
cfo
dco
reception signal
distortion amount
amount estimation
Prior art date
Application number
PCT/JP2008/070141
Other languages
English (en)
French (fr)
Inventor
Hai Lin
Katsumi Yamashita
Original Assignee
Osaka Prefecture University Public Corporation
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 Osaka Prefecture University Public Corporation filed Critical Osaka Prefecture University Public Corporation
Priority to JP2009540068A priority Critical patent/JP5342449B2/ja
Priority to US12/740,028 priority patent/US8180004B2/en
Priority to CN2008801145922A priority patent/CN101843018B/zh
Priority to EP08846803.8A priority patent/EP2209243B1/en
Publication of WO2009060874A1 publication Critical patent/WO2009060874A1/ja

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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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

　伝送系から受信した受信信号においては、ＣＦＯとＤＣＯの補正が受信信号のＳＮＲを向上させ、最終的にはエラーレートの向上に効果的である。そこで、パイロット信号を用いた方法やブライド法などと言った方法でＣＦＯとＤＣＯの推定および補正が検討されているが、ＤＣＯ存在下でのＣＦＯの推定はＭＬ法のように計算量が膨大になるか、若しくは推定値から根本的に誤差を除去できない方法であった。受信信号は伝送系による影響を畳み込まれた形になっており、周期的なパイロット信号の連続したシンボルを周波数軸で観察するとちょうどＣＦＯ分だけ位相がずれている。したがって、周期的なパイロット信号の連続したシンボルからＣＦＯを解析的に求めることができ、それによってＤＣＯも推定し、ＣＦＯ、ＤＣＯ共に補正することができる。      
PCT/JP2008/070141 2007-11-05 2008-11-05 Ｃｆｏ、ｄｃｏのひずみ量推定方法およびこれを用いた受信信号補正方法、受信装置 WO2009060874A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2009540068A JP5342449B2 (ja) 2007-11-05 2008-11-05 Ｃｆｏ、ｄｃｏのひずみ量推定方法およびこれを用いた受信信号補正方法、受信装置
US12/740,028 US8180004B2 (en) 2007-11-05 2008-11-05 Method for estimating amount of distortion in CFO and DCO, method for compensating received signals using the same, and receiver
CN2008801145922A CN101843018B (zh) 2007-11-05 2008-11-05 Cfo和dco的失真量估计方法、以及使用此方法的接收信号校正方法和接收装置
EP08846803.8A EP2209243B1 (en) 2007-11-05 2008-11-05 CFO and DCO distortion amount estimation method, and reception signal correction method and reception device using the method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007287771 2007-11-05
JP2007-287771 2007-11-05

Publications (1)

Publication Number Publication Date
WO2009060874A1 true WO2009060874A1 (ja) 2009-05-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/070141 WO2009060874A1 (ja) 2007-11-05 2008-11-05 Ｃｆｏ、ｄｃｏのひずみ量推定方法およびこれを用いた受信信号補正方法、受信装置

Country Status (6)

Country Link
US (1) US8180004B2 (ja)
EP (1) EP2209243B1 (ja)
JP (1) JP5342449B2 (ja)
KR (1) KR20100090244A (ja)
CN (1) CN101843018B (ja)
WO (1) WO2009060874A1 (ja)

Cited By (1)

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WO2010061532A1 (ja) * 2008-11-01 2010-06-03 公立大学法人大阪府立大学 Ｏｆｄｍ通信システムにおけるアナログ損失のハイブリッドドメイン補償パラメータの求め方と補償方法

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CN106533997B (zh) * 2015-09-09 2019-08-16 扬智科技股份有限公司 系统信噪比的计算方法及其解码装置
US10511462B2 (en) 2016-01-06 2019-12-17 Apple Inc. DC offset cancelation for wireless communications
EP3427508A4 (en) * 2016-03-11 2019-10-23 Sierra Wireless, Inc. METHOD AND SYSTEM FOR CARRIER FREQUENCY OFFSET ESTIMATION IN MTC LTE DEVICE COMMUNICATION
US11784671B2 (en) * 2020-12-30 2023-10-10 Silicon Laboratories Inc. Apparatus for receiver with carrier frequency offset correction using frequency information and associated methods

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JP2001244835A (ja) * 1999-12-21 2001-09-07 Matsushita Electric Ind Co Ltd 信号受信装置
JP2003032216A (ja) * 2001-07-19 2003-01-31 Fujitsu General Ltd Ｏｆｄｍ受信方法および装置
JP2004304507A (ja) * 2003-03-31 2004-10-28 Renesas Technology Corp Ｏｆｄｍ復調方法及び半導体集積回路
JP2008236704A (ja) * 2006-05-16 2008-10-02 Sony Corp 無線通信装置
WO2008156133A1 (ja) * 2007-06-20 2008-12-24 Osaka Prefecture University Public Corporation Ｃｆｏとｄｃｏを有するｏｆｄｍ信号の補償方法、プログラム、記録媒体および受信機

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WO2001031867A1 (en) * 1999-10-27 2001-05-03 Nokia Corporation Dc offset correction in a mobile communication system
KR101102411B1 (ko) * 2003-09-23 2012-01-05 칼라한 셀룰러 엘.엘.씨. 동기화 장치 및 수신기를 통신 시스템의 타이밍 및 반송 주파수에 동기화시키는 방법
US7177374B2 (en) * 2005-06-17 2007-02-13 Broadcom Corporation Apparatus and method for sampling frequency offset estimation and correction in a wireless communication system
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Publication number Priority date Publication date Assignee Title
JP2001244835A (ja) * 1999-12-21 2001-09-07 Matsushita Electric Ind Co Ltd 信号受信装置
JP2003032216A (ja) * 2001-07-19 2003-01-31 Fujitsu General Ltd Ｏｆｄｍ受信方法および装置
JP2004304507A (ja) * 2003-03-31 2004-10-28 Renesas Technology Corp Ｏｆｄｍ復調方法及び半導体集積回路
JP2008236704A (ja) * 2006-05-16 2008-10-02 Sony Corp 無線通信装置
WO2008156133A1 (ja) * 2007-06-20 2008-12-24 Osaka Prefecture University Public Corporation Ｃｆｏとｄｃｏを有するｏｆｄｍ信号の補償方法、プログラム、記録媒体および受信機

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"Communications, 2007. ICC'07. IEEE International Conference on", June 2007, article HAI LIN ET AL.: "Subspace-based OFDM Carrier Frequency Offset Estimation in the Presence of DC Offset", pages: 2883 - 2887, XP031126112 *
"Global Telecommunications Conference, 2006. GLOBECOM'06.", 2006, IEEE, article HAI LIN ET AL.: "Blind Carrier Frequency Offset Estimation for OFDM Systems with DC Offset", pages: 1 - 5, XP031075606 *
HAI LIN ET AL.: "A Low- Complexity Carrier Frequency Offset Estimator Independent of DC Offset", COMMUNICATIONS LERRERS, vol. 12, no. 7, July 2008 (2008-07-01), pages 520 - 522, XP011231653 *
HAI LIN ET AL.: "Estimation of Carrier Frequency Offset and DC Offset for OFDM Systems", COMMUNICATIONS, IEEE TRANSACTIONS ON, vol. 56, no. 5, May 2008 (2008-05-01), pages 704 - 707, XP011227205 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010061532A1 (ja) * 2008-11-01 2010-06-03 公立大学法人大阪府立大学 Ｏｆｄｍ通信システムにおけるアナログ損失のハイブリッドドメイン補償パラメータの求め方と補償方法
JP5147089B2 (ja) * 2008-11-01 2013-02-20 公立大学法人大阪府立大学 Ｏｆｄｍ通信システムにおけるアナログ損失のハイブリッドドメイン補償パラメータの求め方と補償方法

Also Published As

Publication number Publication date
EP2209243A4 (en) 2012-09-19
EP2209243A1 (en) 2010-07-21
CN101843018B (zh) 2013-08-07
US8180004B2 (en) 2012-05-15
JPWO2009060874A1 (ja) 2011-03-24
KR20100090244A (ko) 2010-08-13
EP2209243B1 (en) 2013-06-26
CN101843018A (zh) 2010-09-22
US20100246723A1 (en) 2010-09-30
JP5342449B2 (ja) 2013-11-13

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