Title:
APPLICATION LAYER MULTICAST DELIVERY METHOD
Document Type and Number:
WIPO Patent Application WO/2018/012591
Kind Code:
A1
Abstract:
The present invention suppresses a decrease in the quality of multicast delivery of content even when the communication state of a wireless communication portable terminal device of a node is decreased. A delivery server (21), when the communication state of a wireless communication portable terminal device (31) at the end of a first chain is less than a predetermined communication state threshold value, delivers predetermined content data to another wireless communication portable terminal device (31) that has next transmitted a delivery request, as a second chain different from the first chain. A delivery server (21) chain-connects wireless communication portable terminal devices (31) as the second chain in the order of transmission of subsequent delivery requests, and performs application layer multicast delivery to deliver the predetermined content data to the respective wireless communication portable terminal devices (31) by a peer-to-peer scheme.
Inventors:
SAITOH MAMORU (JP)
Application Number:
PCT/JP2017/025556
Publication Date:
January 18, 2018
Filing Date:
July 13, 2017
Export Citation:
Assignee:
PLANNET ASS CO LTD (JP)
International Classes:
H04N21/6405; G06F13/00; H04L12/70; H04N21/266; H04N21/442; H04N21/4788; H04W4/06; H04W84/12
Foreign References:
| JP2009117944A | 2009-05-28 | |||
| JP2012175684A | 2012-09-10 | |||
| JP2013258657A | 2013-12-26 | |||
| JP2012173995A | 2012-09-10 |
Other References:
KAZUYUKI SHUDO: "Application-so Multicast: Kihon to Oyo", UNIX MAGAZINE, vol. 21, no. 6, 1 October 2006 (2006-10-01), pages 34 - 43, XP003022145
TARO HASHIMOTO ET AL.: "An Efficient Path Reconfiguration for Adaptive Loss Recovery Multicast for Live Media Considering Relay Nodes", IEICE TECHNICAL REPORT, vol. 104, no. 689, 24 February 2005 (2005-02-24), pages 211 - 216, ISSN: 0913-5685
HIROYUKI KUBO ET AL.: "A Study on Overlay Multicast for Mobile Terminals", IEICE TECHNICAL REPORT, vol. 108, no. 457, 24 February 2009 (2009-02-24), pages 51 - 56, ISSN: 0913-5685
KUBO, HIROYUKI ET AL.: "Mobile Overlay Multicast Using Information on Physical Stability for Robust Video Streaming", 2009 IEEE 20TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, 13 September 2009 (2009-09-13), pages 2960 - 2964, XP031660108
TARO HASHIMOTO ET AL.: "An Efficient Path Reconfiguration for Adaptive Loss Recovery Multicast for Live Media Considering Relay Nodes", IEICE TECHNICAL REPORT, vol. 104, no. 689, 24 February 2005 (2005-02-24), pages 211 - 216, ISSN: 0913-5685
HIROYUKI KUBO ET AL.: "A Study on Overlay Multicast for Mobile Terminals", IEICE TECHNICAL REPORT, vol. 108, no. 457, 24 February 2009 (2009-02-24), pages 51 - 56, ISSN: 0913-5685
KUBO, HIROYUKI ET AL.: "Mobile Overlay Multicast Using Information on Physical Stability for Robust Video Streaming", 2009 IEEE 20TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, 13 September 2009 (2009-09-13), pages 2960 - 2964, XP031660108
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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