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:
Aug. 09, 2011
Filed:
Jun. 12, 2008
Jong-ho Lee, Seoul, KR;
Sang-boh Yun, Seongnam-si, KR;
Young-hoon Kwon, Seongnam-si, KR;
Sung-soo Hwang, Yongin-si, KR;
Sung-yoon Jung, Seoul, KR;
Soong-yoon Choi, Suwon-si, KR;
Hyun-cheol Park, Daejeon, KR;
Hyoun-kuk Kim, Ulsan, KR;
Jong-Ho Lee, Seoul, KR;
Sang-Boh Yun, Seongnam-si, KR;
Young-Hoon Kwon, Seongnam-si, KR;
Sung-Soo Hwang, Yongin-si, KR;
Sung-Yoon Jung, Seoul, KR;
Soong-Yoon Choi, Suwon-si, KR;
Hyun-Cheol Park, Daejeon, KR;
Hyoun-Kuk Kim, Ulsan, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Information and Communications University, Research and Industrial Cooperation Group, Daejeon, KR;
Abstract
An apparatus and method for detecting a signal in a receiver by maximum likelihood (ML) are provided, in which symbols are detected according to the number of transmit antennas of a transmitter and a modulation scheme, channels are estimated, an equivalent channel matrix corresponding to the estimated channels is determined, a permuted equivalent channel matrix is determined by multiplying the equivalent channel matrix by a predetermined permutation matrix, the permuted equivalent channel matrix is QR decomposed, a hard decision is performed on predetermined symbols among the detected symbols using a received signal resulting from the QR decomposition, and the log likelihood ratios (LLRs) of the hard-decided symbols are determined.