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:
Jan. 30, 2007
Filed:
Jan. 09, 2003
Soo-bok Yeo, Songnam-shi, KR;
Sang-min Bae, Kyonggi-do, KR;
Ji-won Ha, Seoul, KR;
Jong-han Kim, Yongin-shi, KR;
Soo-Bok Yeo, Songnam-shi, KR;
Sang-Min Bae, Kyonggi-do, KR;
Ji-Won Ha, Seoul, KR;
Jong-Han Kim, Yongin-shi, KR;
Samsung Electronics Co., Ltd., Suwon, unknown;
Abstract
An apparatus for detecting a frame transmission period in a CDMA mobile communication system supporting a discontinuous transmission mode. A first frame detector performs primary frame detection by calculating a signal-to-interference ratio (SIR) using traffic symbol energy, pilot symbol energy and noise energy measured for a predetermined time period, and comparing the SIR with a predetermined frame detection threshold value. A decoder calculates a symbol error rate (SER) by decoding symbols received for the predetermined time period. A second frame detector selects an SER threshold value according to frame detection information from the first frame detector, and compares the selected SER threshold value with the SER to determine whether a frame has been transmitted.