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:
Mar. 01, 2011
Filed:
Oct. 30, 2007
Young-jo Bang, Daejeon, KR;
Chang-wahn Yu, Daejeon, KR;
Seung-jae Bahng, Daejeon, KR;
Dae-ho Kim, Daejeon, KR;
Youn-ok Park, Daejeon, KR;
Jee-hwan Ahn, Daejeon, KR;
Ii Min Kim, Suwon-si, KR;
Young-Jo Bang, Daejeon, KR;
Chang-Wahn Yu, Daejeon, KR;
Seung-Jae Bahng, Daejeon, KR;
Dae-Ho Kim, Daejeon, KR;
Youn-Ok Park, Daejeon, KR;
Jee-Hwan Ahn, Daejeon, KR;
II Min Kim, Suwon-si, KR;
Samsung Electronics Co. Ltd, Suwon-si, KR;
Abstract
The present invention relates to a method of detecting a space-time code in a mobile communication system. When detecting a space-time code B for a plurality of transmitting antennas, an ML (maximum likelihood) metric, which is generally calculated by using a specific structure of a matrix B, is defined as a new ML metric by reducing a variable of the ML metric. Two dependent sphere decoding processes are performed and an intersection of the decoding results is calculated, and a signal is detected from the ML metric. Therefore, since detection of the space-time code B for the plurality of transmitting antennas is performed by using the newly defined ML metric, an amount of matrix calculated can be reduced, and a calculation amount can be reduced by performing the two dependent sphere decoding processes. Further, since a detection order of symbols is changed according to a channel situation, it is possible to improve the performance of the system.