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:
Oct. 09, 2012
Filed:
Jul. 18, 2008
Jin Hoshino, Ota-ku, JP;
Susumu Ogata, Yokohama, JP;
Masatoshi Kimoto, Yokosuka, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A radio communication system includes a delay time acquiring unit configured to acquire a delay time of a signal transmitted between the mobile terminaland the base station; a position information acquiring unit configured to acquire a position of the base station; a calculating unit configured to calculate a position of the mobile terminalon the basis of the delay time acquired by the delay time acquiring unit, and the position of the base stationacquired by the position information acquiring unit; and a providing unit configured to provide mobile station position information indicating the position of the mobile terminal. When a predetermined exception condition is not satisfied, the providing unit provides, as the mobile station position information, the position of the mobile terminalcalculated by the calculating unit. When the predetermined exception condition is satisfied, the providing unit provides, as the mobile station position information, the position of the base stationacquired by the position information acquiring unit, instead of using the position of the mobile terminalcalculated by the calculating unit.