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WO2007108430A1 - Wireless communication device and wireless communication system - Google Patents

Wireless communication device and wireless communication system

Info

Publication number
WO2007108430A1
WO2007108430A1 PCT/JP2007/055481 JP2007055481W WO2007108430A1 WO 2007108430 A1 WO2007108430 A1 WO 2007108430A1 JP 2007055481 W JP2007055481 W JP 2007055481W WO 2007108430 A1 WO2007108430 A1 WO 2007108430A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
communication
wireless
device
out
devices
Prior art date
Application number
PCT/JP2007/055481
Other languages
French (fr)
Japanese (ja)
Inventor
Shinya Fukuoka
Original Assignee
Pioneer 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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna systems, 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
    • H04B7/0619Diversity systems; Multi-antenna systems, 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 using feedback from receiving side
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems

Abstract

[PROBLEMS] Efficient communication is carried out in accordance with various communication partners. [MEANS FOR SOLVING THE PROBLEMS] Prior to starting communication, a total directionality of antennas (101A-F) is set to a prescribed initial state. In this state, in response to initial communication contents in which communication is carried out with other wireless communication device (301), communication conditions of the number of the antennas, a communication system, etc., are set for communication thereafter with the other wireless communication devices. With this setting, a wireless communication device is provided with functions that are achievable for an MIMO communication but the MIMO communication system is not always used for the wireless communication device because it depends on initial communication contents with the other communication devices (301), so that communication can be carried out in a communication mode in compliance with requirements of the other communication devices (301).
PCT/JP2007/055481 2006-03-17 2007-03-19 Wireless communication device and wireless communication system WO2007108430A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006-073711 2006-03-17
JP2006073711A JP2009135559A (en) 2006-03-17 2006-03-17 Wireless communication device and wireless communication system

Publications (1)

Publication Number Publication Date
WO2007108430A1 true true WO2007108430A1 (en) 2007-09-27

Family

ID=38522459

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/055481 WO2007108430A1 (en) 2006-03-17 2007-03-19 Wireless communication device and wireless communication system

Country Status (2)

Country Link
JP (1) JP2009135559A (en)
WO (1) WO2007108430A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010251936A (en) * 2009-04-14 2010-11-04 Lenovo Singapore Pte Ltd Radio terminal device
WO2012073763A1 (en) * 2010-11-29 2012-06-07 オリンパスメディカルシステムズ株式会社 Reception device and capsule-type endoscope system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002290148A (en) * 2001-01-17 2002-10-04 Lucent Technol Inc Antenna array
JP2003032163A (en) * 2001-07-12 2003-01-31 Matsushita Electric Ind Co Ltd Wireless communication device, wireless communication method and wireless base station device
JP2005160011A (en) * 2003-10-31 2005-06-16 Advanced Telecommunication Research Institute International Array antenna device
JP2005236686A (en) * 2004-02-19 2005-09-02 Nippon Telegr & Teleph Corp <Ntt> Communications system and communication method by adaptive array antenna

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002290148A (en) * 2001-01-17 2002-10-04 Lucent Technol Inc Antenna array
JP2003032163A (en) * 2001-07-12 2003-01-31 Matsushita Electric Ind Co Ltd Wireless communication device, wireless communication method and wireless base station device
JP2005160011A (en) * 2003-10-31 2005-06-16 Advanced Telecommunication Research Institute International Array antenna device
JP2005236686A (en) * 2004-02-19 2005-09-02 Nippon Telegr & Teleph Corp <Ntt> Communications system and communication method by adaptive array antenna

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010251936A (en) * 2009-04-14 2010-11-04 Lenovo Singapore Pte Ltd Radio terminal device
WO2012073763A1 (en) * 2010-11-29 2012-06-07 オリンパスメディカルシステムズ株式会社 Reception device and capsule-type endoscope system
JP5143313B2 (en) * 2010-11-29 2013-02-13 オリンパスメディカルシステムズ株式会社 Receiving apparatus and a capsule endoscope system
CN103096779A (en) * 2010-11-29 2013-05-08 奥林巴斯医疗株式会社 Reception device and capsule-type endoscope system

Also Published As

Publication number Publication date Type
JP2009135559A (en) 2009-06-18 application

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