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.
Patent No.:
Date of Patent:
May. 11, 2010
Filed:
Mar. 29, 2007
Ken Igarashi, Yokohama, JP;
Kenichi Yamazaki, Hino, JP;
Ken Igarashi, Yokohama, JP;
Kenichi Yamazaki, Hino, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A retransmission control method of the present invention includes the steps in which a receiving terminal: measures a round trip time (RTT) between the receiving terminal and a sending terminal; calculates an RTO by using the measured RTT; and starts a time counting operation of the RTO upon reception from a point in time when a segment is received from the sending terminal; transmits a segment prompt signal which prompts the sending terminal to transmit a segment, when the segment is not received from the sending terminal until the RTO is completed, and in which the sending terminal: retransmits a segment to the receiving terminal when there is a segment to be retransmitted; and transmits a data-less signal to the receiving terminal when there is a segment that should be retransmitted, the data-less signal indicating that there is no segment that should be retransmitted.