WO2009142059A1 - Système d'émission/réception de données électroniques - Google Patents

Système d'émission/réception de données électroniques Download PDF

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Publication number
WO2009142059A1
WO2009142059A1 PCT/JP2009/055587 JP2009055587W WO2009142059A1 WO 2009142059 A1 WO2009142059 A1 WO 2009142059A1 JP 2009055587 W JP2009055587 W JP 2009055587W WO 2009142059 A1 WO2009142059 A1 WO 2009142059A1
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WO
WIPO (PCT)
Prior art keywords
electronic data
download
terminal
communication
data transmission
Prior art date
Application number
PCT/JP2009/055587
Other languages
English (en)
Japanese (ja)
Inventor
貴則 山田
Original Assignee
シャープ株式会社
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 シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2009142059A1 publication Critical patent/WO2009142059A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • H04L67/61—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources taking into account QoS or priority requirements

Definitions

  • DESCRIPTION OF SYMBOLS 11 Electronic data transmission / reception terminal (reception side) 110 ... Data selection part, 111 ... Electronic data list memory
  • N terminals that have electronic data to be downloaded are found, one terminal is added in order of increasing communication speed so that the sum of the communication speeds does not exceed the downlink communication speed of its own terminal. To. The terminal added up to this time becomes the download source terminal. At this time, if a sufficient download speed can be obtained, one terminal may be selected. In addition, if there are too many download sources, it may be inefficient and there may be restrictions such as hardware resources such as memory, so a certain limit may be set on the number of download sources.
  • the session with the terminal not selected as the download source is terminated, and the electronic data ID and the list of the addresses of the owners of the determined download source terminals are passed to the download amount determination unit 115.
  • the download amount determination unit 115 As described above, by simultaneously downloading from a plurality of terminals, it is possible to use the downstream band without waste and to shorten the communication time.
  • FIG. 4 is a diagram for explaining the download amount and download start position of each terminal calculated based on the communication speed.
  • M is the size of the entire electronic data to be downloaded
  • n is the number of terminals of the download source
  • the terminals are named terminals 1, 2,..., N in descending order of communication speed.
  • the communication speed of the terminal S 1, S 2, ⁇ , is indicated as S n.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention porte sur un système d'émission/réception de données électroniques qui peut réduire le temps requis pour télécharger des données électroniques. Le système d'émission/réception de données électroniques comprend une pluralité de terminaux mobiles connectés par un réseau de communication. Lors du téléchargement de données électroniques possédées par un terminal mobile du côté émission dans un terminal mobile du côté réception, le terminal mobile du côté réception collecte une liste de données électroniques qui peuvent être transmises par le terminal mobile à partir du terminal mobile du côté émission avec lequel une communication peut être effectuée par l'intermédiaire du réseau de communication. Le terminal mobile du côté réception mesure la vitesse de communication avec le terminal mobile et l'état de communication et sélectionne un terminal mobile du côté émission parmi une pluralité de sources de téléchargement selon la vitesse de communication et l'état de communication à partir des terminaux mobiles du côté émission ayant des données électroniques, de façon à décider une quantité de téléchargement et une position de démarrage de téléchargement de chacun des terminaux mobiles des sources de téléchargement, qui sont rapportées aux terminaux mobiles respectifs des sources de téléchargement. Les données électroniques sont divisées et simultanément téléchargées pour restaurer les données électroniques.
PCT/JP2009/055587 2008-05-20 2009-03-23 Système d'émission/réception de données électroniques WO2009142059A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-131488 2008-05-20
JP2008131488 2008-05-20

Publications (1)

Publication Number Publication Date
WO2009142059A1 true WO2009142059A1 (fr) 2009-11-26

Family

ID=41339998

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/055587 WO2009142059A1 (fr) 2008-05-20 2009-03-23 Système d'émission/réception de données électroniques

Country Status (1)

Country Link
WO (1) WO2009142059A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3076704A1 (fr) 2015-04-02 2016-10-05 Fujitsu Limited Appareil de communication sans fil, programme informatique de communication sans fil et procédé de communication sans fil
EP3076749A1 (fr) 2015-04-01 2016-10-05 Fujitsu Limited Méthode de téléchargement et dispositif de communication sans fil
EP3139567A1 (fr) 2015-09-01 2017-03-08 Fujitsu Limited Dispositif, procédé et programme de communication
EP3139566A1 (fr) 2015-09-01 2017-03-08 Fujitsu Limited Dispositif, procédé et programme de communication
US10209916B2 (en) 2016-06-10 2019-02-19 Fujitsu Connected Technologies Limited Device and method to divide and download content data

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002268979A (ja) * 2001-03-07 2002-09-20 Nippon Telegr & Teleph Corp <Ntt> ダウンロード方法及び装置、ダウンロード用プログラム並びにそのプログラムを記録した記録媒体
JP2006011550A (ja) * 2004-06-22 2006-01-12 Sony Corp 協調フィルタリングによる情報伝送システム、これに用いる情報処理装置及び情報処理装置に用いるプログラム
JP2006126894A (ja) * 2004-10-26 2006-05-18 Sony Corp コンテンツ配信方法、プログラムおよび情報処理装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002268979A (ja) * 2001-03-07 2002-09-20 Nippon Telegr & Teleph Corp <Ntt> ダウンロード方法及び装置、ダウンロード用プログラム並びにそのプログラムを記録した記録媒体
JP2006011550A (ja) * 2004-06-22 2006-01-12 Sony Corp 協調フィルタリングによる情報伝送システム、これに用いる情報処理装置及び情報処理装置に用いるプログラム
JP2006126894A (ja) * 2004-10-26 2006-05-18 Sony Corp コンテンツ配信方法、プログラムおよび情報処理装置

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3076749A1 (fr) 2015-04-01 2016-10-05 Fujitsu Limited Méthode de téléchargement et dispositif de communication sans fil
US9844088B2 (en) 2015-04-01 2017-12-12 Fujitsu Limited Download method and wireless communication device
EP3076704A1 (fr) 2015-04-02 2016-10-05 Fujitsu Limited Appareil de communication sans fil, programme informatique de communication sans fil et procédé de communication sans fil
US10448442B2 (en) 2015-04-02 2019-10-15 Fujitsu Connected Technologies Limited Wireless communication apparatus, recording medium, and wireless communication method
EP3139567A1 (fr) 2015-09-01 2017-03-08 Fujitsu Limited Dispositif, procédé et programme de communication
EP3139566A1 (fr) 2015-09-01 2017-03-08 Fujitsu Limited Dispositif, procédé et programme de communication
US10270683B2 (en) 2015-09-01 2019-04-23 Fujitsu Connected Technologies Limited Communication method, communication device, and recording medium for streaming
US10484444B2 (en) 2015-09-01 2019-11-19 Fujitsu Limited Communication method, communication device, and recording medium for streaming
US10209916B2 (en) 2016-06-10 2019-02-19 Fujitsu Connected Technologies Limited Device and method to divide and download content data

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