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:
Mar. 06, 2012
Filed:
Nov. 18, 2010
Shigeyasu Kubo, Chigasaki, JP;
Yosuke Takahashi, Kawasaki, JP;
Akihiko Yoshida, Yokohama, JP;
Daigo Takayanagi, Fujisawa, JP;
Shigeyasu Kubo, Chigasaki, JP;
Yosuke Takahashi, Kawasaki, JP;
Akihiko Yoshida, Yokohama, JP;
Daigo Takayanagi, Fujisawa, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A call processing control apparatus automatically detects that a lot of handover and location registration simultaneously occur, and notifies a monitor control server. The monitor control server receiving the notification from the call processing control apparatus transmits a TAI change request to a base station so that a tracking area identity (TAI) of a movement destination cell where congestion occurs and a tracking area identity of a movement origin cell have the same value. The base station receiving the TAI change request message from the monitor control server changes its own TAI value. After that, all mobile devices perform only handover when they move between the cells where the TAI values are changed, and does not perform location registration.