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:
May. 24, 2011
Filed:
Apr. 16, 2007
Huan Cong Nguyen, Aalborg, DK;
Elisabeth DE Carvalho, Aalborg, DK;
Jin-kyu Koo, Suwon-si, KR;
Su-ryong Jeong, Suwon-si, KR;
Young-kwon Cho, Suwon-si, KR;
Jae-weon Cho, Suwon-si, KR;
Dong-seek Park, Yongin-si, KR;
Ho-kyu Choi, Seongnam-si, KR;
Huan Cong Nguyen, Aalborg, DK;
Elisabeth De Carvalho, Aalborg, DK;
Jin-Kyu Koo, Suwon-si, KR;
Su-Ryong Jeong, Suwon-si, KR;
Young-Kwon Cho, Suwon-si, KR;
Jae-Weon Cho, Suwon-si, KR;
Dong-Seek Park, Yongin-si, KR;
Ho-Kyu Choi, Seongnam-si, KR;
Samsung Electronics Co., Ltd, , KR;
Abstract
Provided is an apparatus and method for estimating an uplink frequency offset in a wireless communication system. In a receiving apparatus of a wireless communication system using a random access channel composed of two equivalent sequences, the apparatus includes a channel receiver which extracts samples corresponding to the two sequences from an input random access channel signal; a correlator which computes first and second correlation values by correlating preceding and trailing samples among the samples output from the channel receiver with a predetermined sequence; and a frequency offset estimator which estimates a frequency offset by using a ratio of the second correlation value to the first correlation value output from the correlator.