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:
Jun. 09, 2015
Filed:
Dec. 24, 2009
Osamu Kurokawa, Tokyo, JP;
Kazuki Eguchi, Tokyo, JP;
Koki Hayashi, Tokyo, JP;
Yuichiro Kameoka, Tokyo, JP;
Yasuhiro Watanabe, Tokyo, JP;
Hiroaki Akiyama, Tokyo, JP;
Takayuki Kido, Tokyo, JP;
Osamu Kurokawa, Tokyo, JP;
Kazuki Eguchi, Tokyo, JP;
Koki Hayashi, Tokyo, JP;
Yuichiro Kameoka, Tokyo, JP;
Yasuhiro Watanabe, Tokyo, JP;
Hiroaki Akiyama, Tokyo, JP;
Takayuki Kido, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A communication system for solving a problem, in which secure communications security cannot be ensured in communications between a femtocell base station and UE, is provided. The communication system includes UE (User Equipment) and an HLR (Home Location Register) used in an IMS (IP Multimedia subsystem) network and a femtocell base station (Femto AP) that constructs a predetermined communication area. The femtocell base station exists between the UE and the HLR, acquires a concealment key corresponding to the UE from the HLR during authentication of the UE, and executes a concealment process to conceal the identity of the UE based on the concealment key.