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:
Jul. 26, 2011
Filed:
Oct. 24, 2007
Apparatus and method of acquiring initial synchronization of terminal in mobile communication system
Hyeong-sook Park, Daejeon, KR;
Jun-woo Kim, Daejeon, KR;
Kyung-yeol Sohn, Daejeon, KR;
Youn-ok Park, Daejeon, KR;
Hyeong-Sook Park, Daejeon, KR;
Jun-Woo Kim, Daejeon, KR;
Kyung-Yeol Sohn, Daejeon, KR;
Youn-Ok Park, Daejeon, KR;
Samsung Electronics Co., LLP, Suwon-si, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
The present invention relates to an apparatus and method of acquiring initial synchronization of a terminal in a mobile communication system. According to an exemplary embodiment of the present invention, one or more auto-correlation values of a preamble constituting a signal that is received from a base station are calculated. Averages of the calculated auto-correlation values according to samples are calculated, and then a peak value is detected among the calculated values. Then, a cell search is performed on the basis of the detected peak value, and a peak value from the result of the cell search is regularized. Then, the regularized peak value is compared with a predetermined reference value such that it is checked whether synchronization of a signal that has been searched is accurate or not. According to an exemplary embodiment of the present invention, a value obtained by regularizing a result of a cell search is compared with a reference value, and it is checked again whether an accurate start point of a frame is detected or not on the basis of a result of the comparison. Accordingly, false alarm rates can be reduced.