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:
Jun. 21, 2011
Filed:
Jul. 27, 2007
Dong-kyoon Cho, Yongin-si, KR;
Jong-yoon Hwang, Yongin-si, KR;
Dong-Kyoon Cho, Yongin-si, KR;
Jong-Yoon Hwang, Yongin-si, KR;
Samsung Electronics Co., Ltd, , KR;
Abstract
A method for performing Forward Error Correction (FEC) in a Turbo-Bell Labs Layered Space-Time (BLAST) Multiple-Input Multiple-Output (MIMO) communication system. The FEC method includes performing soft decision on a frame received via a plurality of antennas; performing iterative decoding on the soft decision result value a predetermined number of times, and outputting Log Likelihood Ratio (LLR) values for information bits and first parity bits constituting the frame; generating second parity bits by coding information bits calculated from the LLR values, and comparing the first parity bits calculated from the LLR values with the coded second parity bits; and if the first parity bits are identical to the second parity bits, outputting the information bits, determining that there is no error, and if the first parity bits are not identical to the second parity bits, feeding back the LLR values as a-priori information of the soft decision, and returning to the performing of soft decision.