Title:
通信システム、通信装置、方法およびプログラム
Document Type and Number:
Japanese Patent JP7067544
Kind Code:
B2
Abstract:
A receive terminal setting a non-delivery determination time for determining that a next data packet is not delivered after transmitting an acknowledgement (ACK) packet for a received data packet; when the next data packet is not delivered within the non-delivery determination time, the receive terminal repeatedly transmits a retransmission request (RACK) packet prompting the transmission of the next data packet; a transmit terminal specifies a non-delivered data packet using time difference information based on the time-of-day information of the received ACK packet and RACK packet and retransmits the specified data packet to the receive terminal; the time-of-day information here is a time stamp added by the receive terminal to each of the ACK packet and RACK packet when transmitted, or a time stamp added by the transmit terminal to each of the ACK packet and RACK packet when received.
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Inventors:
Youhei Hasegawa
Application Number:
JP2019501323A
Publication Date:
May 16, 2022
Filing Date:
February 20, 2018
Export Citation:
Assignee:
NEC
International Classes:
H04L1/16; H04L47/27
Domestic Patent References:
| JP2007274206A |
Foreign References:
| WO2013125175A1 |
Other References:
長谷川 洋平 他,光空間通信用トランスポートプロトコルTCP-FSOの実環境評価,電子情報通信学会技術研究報告,日本,一般社団法人電子情報通信学会,2012年05月,Vol.112 No.27,p.17-22,NS2012-19
Attorney, Agent or Firm:
Desk
Keiji Kitajima
Keiji Kitajima