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:
Dec. 15, 2015
Filed:
Jun. 28, 2011
Suk Yon Kang, Seoul, KR;
Seung Yoon Baek, Seoul, KR;
Hye Min Lee, Gyeonggi-Do, KR;
Chang Seok Lee, Seoul, KR;
Chae Hwan Cho, Gyeonggi-Do, KR;
Suk Yon Kang, Seoul, KR;
Seung Yoon Baek, Seoul, KR;
Hye Min Lee, Gyeonggi-Do, KR;
Chang Seok Lee, Seoul, KR;
Chae Hwan Cho, Gyeonggi-Do, KR;
SK TELECOM CO., LTD., Seoul, KR;
Abstract
An apparatus for updating a database for wireless LAN based positioning includes a database for storing grid cells divided by pCell ID and base station-derived environment information and wireless LAN environment information matched to the grid cells; a grid cell determining unit for determining an information-unmeasured grid cell among the grid cells, the information-unmeasured grid cell being a grid cell that has unmeasured information among parameters of the wireless LAN environment information matched to the grid cells; an unmeasured parameter checking unit for checking an unmeasured parameter in the information-unmeasured grid cell; a radiowave environment estimating unit for generating radiowave environment estimation information by estimating the unmeasured information based on the unmeasured parameter checked; and a database updating unit for reflecting the radiowave environment estimation information in the information-unmeasured grid cell determined.