WO2008117400A1 - Wireless transmission apparatus - Google Patents

Wireless transmission apparatus Download PDF

Info

Publication number
WO2008117400A1
WO2008117400A1 PCT/JP2007/056249 JP2007056249W WO2008117400A1 WO 2008117400 A1 WO2008117400 A1 WO 2008117400A1 JP 2007056249 W JP2007056249 W JP 2007056249W WO 2008117400 A1 WO2008117400 A1 WO 2008117400A1
Authority
WO
WIPO (PCT)
Prior art keywords
amplifiers
operated
wireless transmission
transmission apparatus
amplifier
Prior art date
Application number
PCT/JP2007/056249
Other languages
French (fr)
Japanese (ja)
Inventor
Takashi Izumi
Takashi Enoki
Original Assignee
Panasonic 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 Panasonic Corporation filed Critical Panasonic Corporation
Priority to PCT/JP2007/056249 priority Critical patent/WO2008117400A1/en
Publication of WO2008117400A1 publication Critical patent/WO2008117400A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
    • H03F3/602—Combinations of several amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers

Abstract

A wireless transmission apparatus which can be applied to two communication systems whose communication methods are different from each other, is small in size and has a high power-efficiency. The wireless transmission apparatus (100) includes amplifier output switching switches (107a, 107b), a combiner (108), and an antenna input switching switch (109) between amplifiers (106a,106b) and antennas (110a, 110b). When transmitting a signal of the first communication system whose maximum transmission power is high, the amplifiers (106a,106b) are operated as a non-linear amplifier, the outputs of the respective amplifiers are combined by the combiner (108), and the amplifiers are operated as an amplifier for a LINC system which uses only one antenna (110a) for transmission. When transmitting a signal of the second communication system whose maximum transmission power is low, the amplifiers (106a,106b) are operated as a linear amplifier and MIMO transmission is performed using two antennas (110a, 110b).
PCT/JP2007/056249 2007-03-26 2007-03-26 Wireless transmission apparatus WO2008117400A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/056249 WO2008117400A1 (en) 2007-03-26 2007-03-26 Wireless transmission apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/056249 WO2008117400A1 (en) 2007-03-26 2007-03-26 Wireless transmission apparatus

Publications (1)

Publication Number Publication Date
WO2008117400A1 true WO2008117400A1 (en) 2008-10-02

Family

ID=39788143

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/056249 WO2008117400A1 (en) 2007-03-26 2007-03-26 Wireless transmission apparatus

Country Status (1)

Country Link
WO (1) WO2008117400A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011020275A1 (en) 2009-08-17 2011-02-24 中兴通讯股份有限公司 Multiple-input multiple-output system and method
FR2953341A1 (en) * 2009-12-02 2011-06-03 Centre Nat Etd Spatiales DEVICE FOR AMPLIFYING THE LOAD POWER OF A MULTIFACEAL SATELLITE OF DATA BROADCASTING
JP2012527852A (en) * 2009-05-21 2012-11-08 クゥアルコム・インコーポレイテッド Output circuit with integrated impedance matching, power coupling and filtering for power amplifiers and other circuits
JP2013214867A (en) * 2012-04-02 2013-10-17 Sharp Corp Device for reducing power consumption, wireless device, and method for reducing power consumption
JP2014532378A (en) * 2011-10-14 2014-12-04 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ Multi-antenna wireless device with power-coupled power amplifier
JP2016500944A (en) * 2012-10-08 2016-01-14 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ Transmit diversity architecture with optimized power consumption and area for UMTS and LTE systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004356729A (en) * 2003-05-27 2004-12-16 Toshiba Corp High frequency circuit and communication apparatus
JP2005295516A (en) * 2004-03-12 2005-10-20 Matsushita Electric Ind Co Ltd Radio communication device and radio communication method
JP2006333167A (en) * 2005-05-27 2006-12-07 Japan Radio Co Ltd High-frequency amplifier circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004356729A (en) * 2003-05-27 2004-12-16 Toshiba Corp High frequency circuit and communication apparatus
JP2005295516A (en) * 2004-03-12 2005-10-20 Matsushita Electric Ind Co Ltd Radio communication device and radio communication method
JP2006333167A (en) * 2005-05-27 2006-12-07 Japan Radio Co Ltd High-frequency amplifier circuit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012527852A (en) * 2009-05-21 2012-11-08 クゥアルコム・インコーポレイテッド Output circuit with integrated impedance matching, power coupling and filtering for power amplifiers and other circuits
WO2011020275A1 (en) 2009-08-17 2011-02-24 中兴通讯股份有限公司 Multiple-input multiple-output system and method
FR2953341A1 (en) * 2009-12-02 2011-06-03 Centre Nat Etd Spatiales DEVICE FOR AMPLIFYING THE LOAD POWER OF A MULTIFACEAL SATELLITE OF DATA BROADCASTING
EP2333951A1 (en) * 2009-12-02 2011-06-15 Centre National d'Etudes Spatiales ( C.N.E.S.) Payload power amplifier for a multi-beam data-broadcasting satellite
JP2014532378A (en) * 2011-10-14 2014-12-04 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ Multi-antenna wireless device with power-coupled power amplifier
JP2013214867A (en) * 2012-04-02 2013-10-17 Sharp Corp Device for reducing power consumption, wireless device, and method for reducing power consumption
JP2016500944A (en) * 2012-10-08 2016-01-14 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ Transmit diversity architecture with optimized power consumption and area for UMTS and LTE systems

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