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. 06, 2015
Filed:
Aug. 25, 2010
Kap Seok Chang, Daejeon, KR;
Sung Geun Jin, Daejeon, KR;
Hyun Kyu Chung, Daejeon, KR;
Woo Yong Lee, Daejeon, KR;
Hyoung Jin Kwon, Cheongju-si, KR;
Kap Seok Chang, Daejeon, KR;
Sung Geun Jin, Daejeon, KR;
Hyun Kyu Chung, Daejeon, KR;
Woo Yong Lee, Daejeon, KR;
Hyoung Jin Kwon, Cheongju-si, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Disclosed is a technique related to a method for controlling synchronization by correcting data transmission time or frequency offset, and to a station. According to the technique, a method for controlling the synchronization of a first terminal for data transmission/reception in a coordinated communication system comprises: a step of transmitting a first request frame and a second request frame containing transmission time information for each of a first response frame and a second response frame to a second terminal and to a third terminal, respectively; a step of receiving the first response frame and the second response frame from the second terminal and the third terminal; a step of estimating a first propagation delay time between the first terminal and the second terminal and a second propagation delay time between the first terminal and the third terminal, using the time of receiving the first response frame and the second response frame; and a step of transmitting, to the second terminal, a third request frame containing information on the delay time difference between the first propagation delay time and the second propagation delay time.