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.

Date of Patent:
Sep. 17, 2013

Filed:

Nov. 06, 2008
Applicants:

Kazunori Obata, Yokosuka, JP;

Naoaki Harada, Yokosuka, JP;

Inventors:

Kazunori Obata, Yokosuka, JP;

Naoaki Harada, Yokosuka, JP;

Assignee:

NTT DoCoMo, Inc., Chiyoda-ku, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); H04W 36/00 (2009.01); H04L 12/28 (2006.01); H04L 12/56 (2006.01);
U.S. Cl.
CPC ...
Abstract

Even when a general user's mobile station in communication enters a use-prohibited cell, the use of the use-prohibited cell is prevented while the communication is being maintained. Regarding a mobile stationthat enters an area of a cell Cunder handover restriction, the connection utilizing the use-prohibited cell is prohibited and handover of the mobile station is performed to an effectively-operating cell Ccovering an area including the current position of the mobile station within the use-prohibited cell and having another frequency. Alternatively, the handover is performed to a base station of an effectively-operating cell Cbelonging to another mobile communication system.


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