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. 15, 2011
Filed:
Feb. 05, 2007
Jong-hyeuk Lee, Anyang-si, KR;
Myeon-kyun Cho, Seongnam-si, KR;
Seung-hoon Nam, Seoul, KR;
Jae-yeun Yun, Bucheon-si, KR;
Yong-hoon Lee, Deajeon, KR;
Sae-young Chung, Deajeon, KR;
Jihoon Choi, Gyeongnam, KR;
Jong-Hyeuk Lee, Anyang-si, KR;
Myeon-Kyun Cho, Seongnam-si, KR;
Seung-Hoon Nam, Seoul, KR;
Jae-Yeun Yun, Bucheon-si, KR;
Yong-Hoon Lee, Deajeon, KR;
Sae-Young Chung, Deajeon, KR;
Jihoon Choi, Gyeongnam, KR;
Abstract
An apparatus and method for determining a beamforming vector in a codebook-based transmission beamforming system are provided. In a feedback method for a receiver in a codebook-based transmission beamforming system, forthcoming channel values for a forthcoming period are generated using M present and previous channel estimates. Effective channel gains for all transmission beamforming vectors included in a codebook are calculated using the forthcoming channel values. A codebook index corresponding to the maximum effective channel gains is fed back to a transmitter.