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Patent Searching and Data


Title:
DATA COMMUNICATION SYSTEM, DATA SENDING APPARATUS, DATA SENDING METHOD, DATA RECEIVING APPARATUS, AND DATA RECEIVING METHOD
Document Type and Number:
WIPO Patent Application WO/2008/029710
Kind Code:
A1
Abstract:
A probe sending section (216) of a packet receiving terminal (210) sends out probe packets to a second radio channel (320) at a regular interval. A probe analyzing section (117) of a packet sending terminal (110) detects a burst loss, if any, from the received states of the probe packets. When a burst loss is detected, a prediction resending control unit (118) predicts that a data packet sent out during the period of the detected burst loss out of data packets sent out from a priority processing sending buffer (115) to a first radio channel (310) is the one lost on the receiving end and reads the data packet from a resending buffer (114) to send it to the priority processing sending buffer (115). In a radio environment, a real-time property can be secured while overcoming the packet loss.

Inventors:
ITAKURA, Eisaburo (1-7-1 Konan, Minato-k, Tokyo 75, 1080075, JP)
板倉 英三郎 (〒75 東京都港区港南1丁目7番1号 ソニー株式会社内 Tokyo, 1080075, JP)
SUNAHARA, Sei (1-7-1 Konan, Minato-k, Tokyo 75, 1080075, JP)
砂原 星 (〒75 東京都港区港南1丁目7番1号 ソニー株式会社内 Tokyo, 1080075, JP)
TAKAHASHI, Yutaka (36-1 Yoshida-honmachi, Sakyo-ku, Kyoto-sh, Kyoto 01, 6068501, JP)
高橋 豊 (〒01 京都府京都市左京区吉田本町36番地1 国立大学法人京都大学内 Kyoto, 6068501, JP)
Application Number:
JP2007/066917
Publication Date:
March 13, 2008
Filing Date:
August 30, 2007
Export Citation:
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Assignee:
SONY CORPORATION (1-7-1, Konan Minato-k, Tokyo 75, 1080075, JP)
ソニー株式会社 (〒75 東京都港区港南1丁目7番1号 Tokyo, 1080075, JP)
Kyoto University (36-1, Yoshida-honmachi Sakyo-ku, Kyoto-sh, Kyoto 01, 6068501, JP)
国立大学法人京都大学 (〒01 京都府京都市左京区吉田本町36番地1 Kyoto, 6068501, JP)
ITAKURA, Eisaburo (1-7-1 Konan, Minato-k, Tokyo 75, 1080075, JP)
板倉 英三郎 (〒75 東京都港区港南1丁目7番1号 ソニー株式会社内 Tokyo, 1080075, JP)
SUNAHARA, Sei (1-7-1 Konan, Minato-k, Tokyo 75, 1080075, JP)
砂原 星 (〒75 東京都港区港南1丁目7番1号 ソニー株式会社内 Tokyo, 1080075, JP)
International Classes:
H04L1/16; H04L1/00; H04Q7/38; H04L1/16; H04L1/00; H04Q7/38
Attorney, Agent or Firm:
KOIKE, Akira et al. (11th Floor, Yamato Seimei Bldg.1-7, Uchisaiwai-cho 1-chom, Chiyoda-ku Tokyo 11, 1000011, JP)
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