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:
Dec. 20, 2011
Filed:
May. 09, 2007
Soong-yoon Choi, Suwon-si, KR;
Kyung-joo Suh, Seoul, KR;
Young-hoon Kwon, Seongnam-si, KR;
Sung-soo Hwang, Suwon, KR;
Jong-in Kim, Suwon, KR;
Yong-seok Kim, Suwon, KR;
Hyun-cheol Park, Daejeon, KR;
Hyoun-kuk Kim, Ulsan, KR;
Soong-Yoon Choi, Suwon-si, KR;
Kyung-Joo Suh, Seoul, KR;
Young-Hoon Kwon, Seongnam-si, KR;
Sung-Soo Hwang, Suwon, KR;
Jong-In Kim, Suwon, KR;
Yong-Seok Kim, Suwon, KR;
Hyun-Cheol Park, Daejeon, KR;
Hyoun-Kuk Kim, Ulsan, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Research and Industrial Cooperation Group, Daejeon, KR;
Abstract
An apparatus and method for lowering a tree searching complexity in a Spatial Multiplexing (SM) Multiple Input Multiple Output (MIMO) antenna system are provided. A transmitting apparatus includes a generator for generating a plurality of transmit streams by spatial-multiplexing a transmit data, a determiner for determining modulation schemes to be applied to the plurality of the transmit streams respectively and a modulator for modulating the plurality of the transmit streams using at least two modulation schemes under control of the determiner. The receiver detects the signals by allocating the modulation scheme of the lowest order to the upper tree level.