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:
Sep. 25, 2012
Filed:
Dec. 06, 2007
Hyojin Lee, Daejeon, KR;
Hyun-kyu Chung, Daejeon, KR;
Hyun-seok Ryu, Chungcheongbuk-do, KR;
Chung-gu Kang, Seoul, KR;
Heesoo Lee, Daejeon, KR;
Kyung-mi Park, Seoul, KR;
Hyojin Lee, Daejeon, KR;
Hyun-Kyu Chung, Daejeon, KR;
Hyun-Seok Ryu, Chungcheongbuk-do, KR;
Chung-Gu Kang, Seoul, KR;
Heesoo Lee, Daejeon, KR;
Kyung-Mi Park, Seoul, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
An apparatus for and method of transmitting and/or receiving a signal by using signaling point rotation in mutually cooperative relaying are provided. The apparatus for transmitting a signal includes: a rotated I-channel generation unit rotating a symbol containing data of a first user, by a predetermined angle, and then, obtaining the I-channel (in-phase) component of the rotated symbol; a rotated Q-channel generation unit receiving a symbol rotated by a predetermined angle, of a previous time slot from a node of a second user performing mutually cooperative relaying with the node of the first user, detecting the I-channel component, and obtaining the Q-channel (quadrature-phase) component of a symbol containing data of the second user from the detected I-channel component; and a combining unit combining the I-channel component of the first user generated in the rotated I-channel generation unit and the Q-channel component of the second user generated in the rotated Q-channel generation unit, thereby generating one symbol.