WO2008142974A1 - Ｏｆｄｍａ受信装置およびｏｆｄｍａ受信方法 - Google Patents

Ｏｆｄｍａ受信装置およびｏｆｄｍａ受信方法 Download PDF

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Publication number
WO2008142974A1
WO2008142974A1 PCT/JP2008/058334 JP2008058334W WO2008142974A1 WO 2008142974 A1 WO2008142974 A1 WO 2008142974A1 JP 2008058334 W JP2008058334 W JP 2008058334W WO 2008142974 A1 WO2008142974 A1 WO 2008142974A1
Authority
WO
WIPO (PCT)
Prior art keywords
rssi
reception
gain
demodulation
detected
Prior art date
Application number
PCT/JP2008/058334
Other languages
English (en)
French (fr)
Inventor
Kazuyuki Tota
Original Assignee
Kyocera 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 Kyocera Corporation filed Critical Kyocera Corporation
Priority to US12/601,225 priority Critical patent/US20100172452A1/en
Publication of WO2008142974A1 publication Critical patent/WO2008142974A1/ja

Links

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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
    • H04L1/0021—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach in which the algorithm uses adaptive thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • 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
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H04L5/0046—Determination of how many bits are transmitted on different sub-channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Quality & Reliability (AREA)
  • Circuits Of Receivers In General (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

ＯＦＤＭＡ方式に基づき移動局と通信する基地局（１２）は、受信信号に対する利得を決定する受信利得決定部（４２）と、受信利得決定部（４２）により決定された利得に応じて、受信信号の受信レベルを制御するＡＧＣアンプ（２４）と、ＡＧＣアンプ（２４）により制御された受信レベルを示すＲＳＳＩをサブチャネルごとに検出するＲＳＳＩ検出部（３２）と、受信信号の復調に要する受信レベルの範囲を示す復調可能レンジをサブチャネルごとに取得するとともに、ＲＳＳＩ検出部（３２）により検出された各ＲＳＳＩが復調可能レンジ内にあるか否かを判定するＲＳＳＩ判定部（４０）と、を含む。受信利得決定部（４２）は、ＲＳＳＩ検出部（３２）により検出されたＲＳＳＩのうち最大のＲＳＳＩと、その最大のＲＳＳＩが検出されたサブチャネルの復調可能レンジとに基づいて、利得を決定する。
PCT/JP2008/058334 2007-05-21 2008-05-01 Ｏｆｄｍａ受信装置およびｏｆｄｍａ受信方法 WO2008142974A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/601,225 US20100172452A1 (en) 2007-05-21 2008-05-01 Ofdma reception device and ofdma reception method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-134005 2007-05-21
JP2007134005A JP2008289046A (ja) 2007-05-21 2007-05-21 Ｏｆｄｍａ受信装置およびｏｆｄｍａ受信方法

Publications (1)

Publication Number Publication Date
WO2008142974A1 true WO2008142974A1 (ja) 2008-11-27

Family

ID=40031689

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/058334 WO2008142974A1 (ja) 2007-05-21 2008-05-01 Ｏｆｄｍａ受信装置およびｏｆｄｍａ受信方法

Country Status (3)

Country Link
US (1) US20100172452A1 (ja)
JP (1) JP2008289046A (ja)
WO (1) WO2008142974A1 (ja)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100007355A1 (en) * 2008-07-10 2010-01-14 Litepoint Corporation Method for testing radio frequency (rf) receiver to provide power correction data
JP5892155B2 (ja) * 2011-03-23 2016-03-23 日本電気株式会社 障害予測判定方法および装置
US9014307B2 (en) 2013-02-25 2015-04-21 Itron, Inc. Radio to analog-to-digital sample rate decoupled from digital subsystem
US9426680B2 (en) 2013-02-25 2016-08-23 Itron, Inc. Real-time radio spectrum assessment engine
US9252998B2 (en) 2013-02-25 2016-02-02 Itron, Inc. Radio to detect and compensate for frequency misalignment
US9077487B2 (en) 2013-02-25 2015-07-07 Itron, Inc. Radio to support channel plans of arbitrary width and/or spacing
JP2014165898A (ja) * 2013-02-28 2014-09-08 Renesas Electronics Corp 通信装置、通信システム、及び通信方法
US9992124B2 (en) 2015-10-09 2018-06-05 Itron, Inc. Multi-channel decoder architecture
US11863359B1 (en) * 2021-05-11 2024-01-02 Amazon Technologies, Inc. Subcarrier pre-equalization technology for frequency selective fading characteristics of wireless channels

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000332659A (ja) * 1999-05-18 2000-11-30 Nec Corp Ａｇｃトレーニング回路
JP2003060605A (ja) * 2001-08-15 2003-02-28 Nippon Telegr & Teleph Corp <Ntt> Ｏｆｄｍ信号受信回路及びｏｆｄｍ信号送受信回路
JP2004260775A (ja) * 2003-02-28 2004-09-16 Hitachi Kokusai Electric Inc 受信機
JP2005045504A (ja) * 2003-07-28 2005-02-17 Toshiba Corp マルチキャリア通信システム、マルチキャリア受信装置およびマルチキャリア送信装置
JP2005260720A (ja) * 2004-03-12 2005-09-22 Mitsubishi Electric Corp 無線受信装置
WO2006011471A1 (ja) * 2004-07-30 2006-02-02 Matsushita Electric Industrial Co., Ltd. 基地局装置および無線通信方法
JP2006324822A (ja) * 2005-05-17 2006-11-30 Sony Corp 無線通信システム、無線通信装置及び無線通信方法、並びにコンピュータ・プログラム
JP2008017102A (ja) * 2006-07-05 2008-01-24 Sony Corp 電力線通信装置および電力線通信システム、ならびに、電力線通信の受信処理方法および制御方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4287536B2 (ja) * 1998-11-06 2009-07-01 パナソニック株式会社 Ｏｆｄｍ送受信装置及びｏｆｄｍ送受信方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000332659A (ja) * 1999-05-18 2000-11-30 Nec Corp Ａｇｃトレーニング回路
JP2003060605A (ja) * 2001-08-15 2003-02-28 Nippon Telegr & Teleph Corp <Ntt> Ｏｆｄｍ信号受信回路及びｏｆｄｍ信号送受信回路
JP2004260775A (ja) * 2003-02-28 2004-09-16 Hitachi Kokusai Electric Inc 受信機
JP2005045504A (ja) * 2003-07-28 2005-02-17 Toshiba Corp マルチキャリア通信システム、マルチキャリア受信装置およびマルチキャリア送信装置
JP2005260720A (ja) * 2004-03-12 2005-09-22 Mitsubishi Electric Corp 無線受信装置
WO2006011471A1 (ja) * 2004-07-30 2006-02-02 Matsushita Electric Industrial Co., Ltd. 基地局装置および無線通信方法
JP2006324822A (ja) * 2005-05-17 2006-11-30 Sony Corp 無線通信システム、無線通信装置及び無線通信方法、並びにコンピュータ・プログラム
JP2008017102A (ja) * 2006-07-05 2008-01-24 Sony Corp 電力線通信装置および電力線通信システム、ならびに、電力線通信の受信処理方法および制御方法

Also Published As

Publication number Publication date
JP2008289046A (ja) 2008-11-27
US20100172452A1 (en) 2010-07-08

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