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:
Feb. 26, 2008
Filed:
Nov. 14, 2003
Hyung-jun Kim, Seongnam-si, KR;
Eun-tae Won, Seoul, KR;
Alexandr Vasilievich Garmov, Voronezh, RU;
Andrew Yurievich Savinkov, Voronezh, RU;
Stanislav Anatolievich Filin, Voronezh, RU;
Hyung-Jun Kim, Seongnam-si, KR;
Eun-Tae Won, Seoul, KR;
Alexandr Vasilievich Garmov, Voronezh, RU;
Andrew Yurievich Savinkov, Voronezh, RU;
Stanislav Anatolievich Filin, Voronezh, RU;
Samsung Electronics Co., Ltd., Suwon-si, Geonggi-do, KR;
Abstract
A method and an apparatus for determining mutual time difference between base station signals in an asynchronous code division multiplexing access (CDMA) system. The method comprises the steps of: measuring mutual time difference of signals transmitted between at least two base stations; determining all possible paths between said at least two base stations; and providing weights to the measured mutual time difference for said all possible paths. The apparatus comprises: a location measurement unit for measuring mutual time difference of signals transmitted between at least two base stations; a mobile user location center for receiving the mutual time difference of the signals measured by the location measurement unit, determining all possible paths between said at least two base stations, and providing weights to the measured mutual time difference for said all possible paths. The method and apparatus can determine a mutual time difference of signals transmitted from base stations even when the signals are blocked by a certain object and can improve the determination accuracy of the mutual time difference of base station signals.