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:
Jul. 07, 2015
Filed:
Jul. 09, 2013
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Shinya Hatakeyama, Yokohama, JP;
Yoshie Kitahara, Machida, JP;
Akio Ohhashi, Yokohama, JP;
Koichiro Higashi, Yokohama, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A wireless communication system includes an RNC and a BTS which communicates with the RNC. A congestion-notification transmitting unit of the BTS notifies the RNC of occurrence of congestion in a sector in which a mobile station is located. The RNC includes a congestion-notification receiving unit, a retransmission-ratio monitoring unit, and a transmission-rate control unit. The congestion-notification receiving unit detects the congestion occurrence by the notification from the BTS. The retransmission-ratio monitoring unit monitors a ratio of retransmission of a packet to the mobile station. The transmission-rate control unit performs control of changing a transmission rate of a packet to the mobile station according to the retransmission ratio when the congestion occurrence has been detected by the congestion-notification receiving unit.