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WO2009072167A1 - 無線送信装置及び無線送信方法 - Google Patents

無線送信装置及び無線送信方法 Download PDF

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Publication number
WO2009072167A1
WO2009072167A1 PCT/JP2007/001363 JP2007001363W WO2009072167A1 WO 2009072167 A1 WO2009072167 A1 WO 2009072167A1 JP 2007001363 W JP2007001363 W JP 2007001363W WO 2009072167 A1 WO2009072167 A1 WO 2009072167A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric power
radio transmitting
transmitting amplifier
saturation
bias voltage
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2007/001363
Other languages
English (en)
French (fr)
Inventor
Takumi Takayashiki
Tsuneaki Tadano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to PCT/JP2007/001363 priority Critical patent/WO2009072167A1/ja
Publication of WO2009072167A1 publication Critical patent/WO2009072167A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)

Abstract

　無線送信装置の送信アンプに供給されるバイアス電圧を変化させ、データ部分より電力の高いプリアンブルの増幅タイミングにおいては、プリアンブルの増幅を送信アンプの飽和電力からの最適バックオフ値で行うための飽和電力にするバイアス電圧に切り替え、データ部分の増幅タイミングにおいては、データ部分の増幅を送信アンプの飽和電力からの最適バックオフ値で行うための飽和電力にするバイアス電圧に切り替える。送信信号の電力変化に応じて、無線送信装置の送信アンプの飽和電力を変化させることで、電力が変化する送信信号を増幅する送信アンプの効率低下を防ぐことができる。
PCT/JP2007/001363 2007-12-06 2007-12-06 無線送信装置及び無線送信方法 Ceased WO2009072167A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/001363 WO2009072167A1 (ja) 2007-12-06 2007-12-06 無線送信装置及び無線送信方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/001363 WO2009072167A1 (ja) 2007-12-06 2007-12-06 無線送信装置及び無線送信方法

Publications (1)

Publication Number Publication Date
WO2009072167A1 true WO2009072167A1 (ja) 2009-06-11

Family

ID=40717353

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/001363 Ceased WO2009072167A1 (ja) 2007-12-06 2007-12-06 無線送信装置及び無線送信方法

Country Status (1)

Country Link
WO (1) WO2009072167A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012191572A (ja) * 2011-03-14 2012-10-04 Mitsubishi Electric Corp 衛星管制システム

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04277909A (ja) * 1991-03-06 1992-10-02 Fujitsu Ltd 送信電力制御方法
JPH0946152A (ja) * 1995-07-28 1997-02-14 Hitachi Ltd 無線送受信装置
JP2002522994A (ja) * 1998-08-17 2002-07-23 サムスン エレクトロニクス カンパニー リミテッド 移動通信システムにおいて接続チャネルのプリアンブル送信装置及び方法
JP2003110499A (ja) * 2001-09-28 2003-04-11 Seiko Epson Corp 情報通信装置及び情報通信方法
JP2004032591A (ja) * 2002-06-28 2004-01-29 Nec Engineering Ltd デジタル変調装置
JP2004120271A (ja) * 2002-09-26 2004-04-15 Hitachi Kokusai Electric Inc 無線送信機
JP2007194749A (ja) * 2006-01-17 2007-08-02 Ntt Docomo Inc 送信装置および受信装置並びにランダムアクセス制御方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04277909A (ja) * 1991-03-06 1992-10-02 Fujitsu Ltd 送信電力制御方法
JPH0946152A (ja) * 1995-07-28 1997-02-14 Hitachi Ltd 無線送受信装置
JP2002522994A (ja) * 1998-08-17 2002-07-23 サムスン エレクトロニクス カンパニー リミテッド 移動通信システムにおいて接続チャネルのプリアンブル送信装置及び方法
JP2003110499A (ja) * 2001-09-28 2003-04-11 Seiko Epson Corp 情報通信装置及び情報通信方法
JP2004032591A (ja) * 2002-06-28 2004-01-29 Nec Engineering Ltd デジタル変調装置
JP2004120271A (ja) * 2002-09-26 2004-04-15 Hitachi Kokusai Electric Inc 無線送信機
JP2007194749A (ja) * 2006-01-17 2007-08-02 Ntt Docomo Inc 送信装置および受信装置並びにランダムアクセス制御方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012191572A (ja) * 2011-03-14 2012-10-04 Mitsubishi Electric Corp 衛星管制システム

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