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:
Apr. 07, 2009
Filed:
Jun. 02, 2005
Goo-hyun Park, Seoul, KR;
Dae-sik Hong, Seoul, KR;
Ye-hoon Lee, Suwon-si, KR;
Eung-sun Kim, Suwon-si, KR;
Myeon-gyun Cho, Seongnam-si, KR;
Jong-hyeuk Lee, Seongnam-si, KR;
Goo-Hyun Park, Seoul, KR;
Dae-Sik Hong, Seoul, KR;
Ye-Hoon Lee, Suwon-si, KR;
Eung-Sun Kim, Suwon-si, KR;
Myeon-Gyun Cho, Seongnam-si, KR;
Jong-Hyeuk Lee, Seongnam-si, KR;
Samsung Electronics Co., Ltd, , KR;
Yonsei University, , KR;
Abstract
Disclosed is a method for estimating the velocity of a mobile station in Rician fading environments in which a direct wave exists. Cellular mobile communication environments include two environments, Rician fading environments in which a direct wave exists and Rayleigh fading environments in which a direct wave does not exist. Generally, many methods for estimating the velocity of a mobile station have been known in Rayleigh fading environments. However, in Rician fading environments in which a direct wave exists, many errors occurs in estimating the velocity of a mobile station due to difficulty in estimation of a Rician coefficient K and an incident angle θ. According to the invention, a method is provided wherein error is mostly eliminated in estimating the velocity of a mobile station by obtaining a maximum Doppler frequency of the mobile station, even without directly obtaining a Rician coefficient K and an incident angle θ.