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:
Jul. 08, 2014
Filed:
Jan. 21, 2008
Jin Soo Choi, Anyang-si, KR;
Min Seok OH, Anyang-si, KR;
Hyung Ho Park, Anyang-si, KR;
Sung Ho Moon, Anyang-si, KR;
Eun Jong Lee, Anyang-si, KR;
Kyu Jin Park, Anyang-si, KR;
Doo Hyun Sung, Anyang-si, KR;
Jae Hoon Chung, Anyang-si, KR;
Jin Soo Choi, Anyang-si, KR;
Min Seok Oh, Anyang-si, KR;
Hyung Ho Park, Anyang-si, KR;
Sung Ho Moon, Anyang-si, KR;
Eun Jong Lee, Anyang-si, KR;
Kyu Jin Park, Anyang-si, KR;
Doo Hyun Sung, Anyang-si, KR;
Jae Hoon Chung, Anyang-si, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A closed-loop antenna switching method, a reference signal allocating method, and a feedback signal transmitting method for the same are disclosed. Namely, by transmitting a reference signal via the plurality of transmitting antennas via the antenna switching for reference signal transmission for each prescribed multiple period of an antenna selection period, efficient antenna index information can be fed back. By setting an antenna switching period to a prescribed multiple of an antenna selection period, it is able to prevent power loss and data decoding performance degradation. And, the present invention includes transmitting a sounding reference signal (SRS) for each band selection period via at least one of the plurality of transmitting antennas and transmitting at least one data demodulation reference signal (DMRS) between the band selection periods via an antenna for not transmitting data by reference signal transmission antenna switching.