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. 27, 2013
Filed:
Apr. 01, 2009
Eun-yong Kim, Hwaseong-si, KR;
Ju-mi Lee, Seoul, KR;
Eun-seok Ko, Seongnam-si, KR;
Sung-soo Kim, Seoul, KR;
Joo-hwan Chun, Daejeon, KR;
Eun-Yong Kim, Hwaseong-si, KR;
Ju-Mi Lee, Seoul, KR;
Eun-Seok Ko, Seongnam-si, KR;
Sung-Soo Kim, Seoul, KR;
Joo-Hwan Chun, Daejeon, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Abstract
An apparatus and method for detecting signals based on a Lattice Reduction (LR) algorithm in a Multiple Input Multiple Output (MIMO) wireless communication system are provided. The apparatus includes a plurality of operators for determining soft-decision values for respective streams by performing a soft modulo operation on respective symbol values included in a Receive (Rx) signal block multiplied by a lattice transformation matrix T, a plurality of inner decoders for determining Log Likelihood Ratio (LLR) values of codewords according to coding schemes for the respective streams by decoding the soft-decision values for the respective streams according to identical decoding scheme, a passer for restoring the LLR values representing the codewords generated in a transmitting end using the LLR values, and a plurality of outer decoders for determining LLR values of Transmit (Tx) bitstreams for the respective streams by decoding the LLR values representing the codewords generated in the transmitting end for the respective streams according to decoding schemes for the respective streams.