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:
Jan. 24, 2017
Filed:
Apr. 05, 2013
Ntt Docomo, Inc., Tokyo, JP;
Shinya Takeda, Tokyo, JP;
Itsuma Tanaka, Tokyo, JP;
NTT DOCOMO, INC., Tokyo, JP;
Abstract
Provided are a communication system, a mobile station and a communication method that can suppress the increase of processing loads of an IP-CAN accompanying trials made by mobile stations to connect to the IP-CAN via a wireless access network that does not support any services on the IP multimedia core network subsystem (IMS). For example, a UE () receives, from an SGSN via the 3G, service non-supporting information indicating that the 3G does not support any services on the IP multimedia subsystem, and, when having received the service non-supporting information, stops the transmission of an Activate PDP Context Request via the 3G.