The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 09, 2020

Filed:

Jul. 09, 2018
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Naoyoshi Ohkawa, Kawasaki, JP;

Yuji Nomura, Kawasaki, JP;

Fumiyuki Iizuka, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 1/08 (2006.01); H04L 1/16 (2006.01); H04L 12/741 (2013.01); H04L 29/06 (2006.01); H04L 1/18 (2006.01);
U.S. Cl.
CPC ...
H04L 1/08 (2013.01); H04L 1/1642 (2013.01); H04L 1/1887 (2013.01); H04L 45/74 (2013.01); H04L 69/22 (2013.01);
Abstract

A storage medium having a program that executes a process including acquiring a packet formed by dividing data to be transmitted to receiving apparatus by transmitting apparatus and a packet that includes an ACK number to identify an amount of the data about which reception of packets transmitted from the transmitting apparatus to the receiving apparatus by the receiving apparatus has been confirmed; when the acquired packet is a retransmission packet and a lost packet corresponding to the retransmission packet has not been acquired, classifying a position of the lost packet as any of a last packet, an intermediate packet, and a leading packet by comparing the ACK number included in the retransmission packet and the ACK number included in each of packets previous and subsequent to the lost packet; and calculating a retransmission time by a calculation method identified based on the classified position of the lost packet.


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