WO2003026335A1 - Mobile communication system, mobile station and base station - Google Patents

Mobile communication system, mobile station and base station Download PDF

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Publication number
WO2003026335A1
WO2003026335A1 PCT/JP2001/007992 JP0107992W WO03026335A1 WO 2003026335 A1 WO2003026335 A1 WO 2003026335A1 JP 0107992 W JP0107992 W JP 0107992W WO 03026335 A1 WO03026335 A1 WO 03026335A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission
base station
feedback information
radio signal
station
Prior art date
Application number
PCT/JP2001/007992
Other languages
French (fr)
Japanese (ja)
Inventor
Daisuke Jitsukawa
Hiroyuki Seki
Yoshinori Tanaka
Shuusaku Suzuki
Original Assignee
Fujitsu Limited
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 Limited filed Critical Fujitsu Limited
Priority to JP2003529797A priority Critical patent/JP4308655B2/en
Priority to PCT/JP2001/007992 priority patent/WO2003026335A1/en
Publication of WO2003026335A1 publication Critical patent/WO2003026335A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

A base station using a transmission diversity technique in a cellular mobile communication system. This base station (1) includes a downstream transmission data generating unit (51) for outputting transmission data containing an information data signal and a control data signal, a transceiver unit (50) for transmitting a radio signal generated by controlling the amplitude/phase of the inputted downstream transmission data signal on the basis of feedback information from a mobile station (10) and for demodulating the radio signal received to extract the feedback information, a transmission antenna group (31) of N (N is a natural number of 3 or greater) transmission antennas (#1 to #N) for transmitting the radio signal from the transceiver unit (50), and a receiving antenna (36) for receiving the radio signal from the mobile station (10). With this construction, it is possible to increase the number of transmission antennas of the base station and to suppress the amount of upstream feedback information even in a handover when an upstream channel signal transmission rate at which the feedback information is transmitted restricted, to improve the characteristic deterioration in the case of a high fading frequency and to stabilize the handover.
PCT/JP2001/007992 2001-09-14 2001-09-14 Mobile communication system, mobile station and base station WO2003026335A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003529797A JP4308655B2 (en) 2001-09-14 2001-09-14 Mobile communication system, mobile station and base station
PCT/JP2001/007992 WO2003026335A1 (en) 2001-09-14 2001-09-14 Mobile communication system, mobile station and base station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2001/007992 WO2003026335A1 (en) 2001-09-14 2001-09-14 Mobile communication system, mobile station and base station

Publications (1)

Publication Number Publication Date
WO2003026335A1 true WO2003026335A1 (en) 2003-03-27

Family

ID=11737722

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/007992 WO2003026335A1 (en) 2001-09-14 2001-09-14 Mobile communication system, mobile station and base station

Country Status (2)

Country Link
JP (1) JP4308655B2 (en)
WO (1) WO2003026335A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006100767A1 (en) * 2005-03-23 2006-09-28 Mitsubishi Denki Kabushiki Kaisha Wireless communication system
WO2006118123A1 (en) * 2005-04-28 2006-11-09 Matsushita Electric Industrial Co., Ltd. Wireless communication apparatus, and feedback information generating method
WO2007001052A1 (en) * 2005-06-29 2007-01-04 Kyocera Corporation Radio communication device, radio communication method, and radio communication program
JP2011061771A (en) * 2004-12-21 2011-03-24 Qualcomm Inc Transmit power reduction for wireless device including multiple transmit signal paths
US8107897B2 (en) 2005-10-31 2012-01-31 Sharp Kabushiki Kaisha Wireless transmitter
CN102577486A (en) * 2009-10-02 2012-07-11 夏普株式会社 Wireless communication system, communication apparatus, wireless communication method and terminal apparatus
US8265675B2 (en) 2005-10-07 2012-09-11 Nec Corporation MIMO wireless communication system and method by a plurality of base stations and mobile station
US8320849B2 (en) 2005-12-20 2012-11-27 Sharp Kabushiki Kaisha Transmitter for communications system
JP2013531412A (en) * 2010-05-07 2013-08-01 クゥアルコム・インコーポレイテッド Transmit power dependent unbalance compensation for multi-antenna systems
CN103379673A (en) * 2012-04-11 2013-10-30 陈宏玮 Mobile base station providing location based service and online method of the mobile base station

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1042337A (en) * 1996-07-25 1998-02-13 Matsushita Electric Ind Co Ltd Mobile communication system
JPH10503912A (en) * 1995-05-24 1998-04-07 ノキア テレコミュニカシオンス オサケ ユキチュア Pilot channel transmission method and cellular radio system
US6128486A (en) * 1995-06-30 2000-10-03 Teknopolis Kolster Oy Reception method and base station receiver
JP2001036443A (en) * 1999-06-24 2001-02-09 Alcatel Diversity transmission of mobile radio system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10503912A (en) * 1995-05-24 1998-04-07 ノキア テレコミュニカシオンス オサケ ユキチュア Pilot channel transmission method and cellular radio system
US6128486A (en) * 1995-06-30 2000-10-03 Teknopolis Kolster Oy Reception method and base station receiver
JPH1042337A (en) * 1996-07-25 1998-02-13 Matsushita Electric Ind Co Ltd Mobile communication system
JP2001036443A (en) * 1999-06-24 2001-02-09 Alcatel Diversity transmission of mobile radio system

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011061771A (en) * 2004-12-21 2011-03-24 Qualcomm Inc Transmit power reduction for wireless device including multiple transmit signal paths
WO2006100767A1 (en) * 2005-03-23 2006-09-28 Mitsubishi Denki Kabushiki Kaisha Wireless communication system
WO2006118123A1 (en) * 2005-04-28 2006-11-09 Matsushita Electric Industrial Co., Ltd. Wireless communication apparatus, and feedback information generating method
WO2007001052A1 (en) * 2005-06-29 2007-01-04 Kyocera Corporation Radio communication device, radio communication method, and radio communication program
US8265675B2 (en) 2005-10-07 2012-09-11 Nec Corporation MIMO wireless communication system and method by a plurality of base stations and mobile station
US8107897B2 (en) 2005-10-31 2012-01-31 Sharp Kabushiki Kaisha Wireless transmitter
US8116708B2 (en) 2005-10-31 2012-02-14 Sharp Kabushiki Kaisha Wireless receiver
US8121184B2 (en) 2005-10-31 2012-02-21 Sharp Kabushiki Kaisha Wireless receiver
US8121559B2 (en) 2005-10-31 2012-02-21 Sharp Kabushiki Kaisha Wireless transmitter
US8170512B2 (en) 2005-10-31 2012-05-01 Sharp Kabushiki Kaisha Wireless transmitter
EA016947B1 (en) * 2005-10-31 2012-08-30 Шарп Кабусики Кайся Wireless receiving unit
US8111743B2 (en) 2005-10-31 2012-02-07 Sharp Kabushiki Kaisha Wireless transmitter
US8320849B2 (en) 2005-12-20 2012-11-27 Sharp Kabushiki Kaisha Transmitter for communications system
CN102577486A (en) * 2009-10-02 2012-07-11 夏普株式会社 Wireless communication system, communication apparatus, wireless communication method and terminal apparatus
CN102577486B (en) * 2009-10-02 2015-11-25 夏普株式会社 Wireless communication system, communicator, wireless communications method and terminal installation
JP2013531412A (en) * 2010-05-07 2013-08-01 クゥアルコム・インコーポレイテッド Transmit power dependent unbalance compensation for multi-antenna systems
US9179427B2 (en) 2010-05-07 2015-11-03 Qualcomm Incorporated Transmission power dependent imbalance compensation for multi-antenna systems
CN103379673A (en) * 2012-04-11 2013-10-30 陈宏玮 Mobile base station providing location based service and online method of the mobile base station

Also Published As

Publication number Publication date
JPWO2003026335A1 (en) 2005-01-06
JP4308655B2 (en) 2009-08-05

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