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:
Oct. 09, 2012
Filed:
May. 29, 2008
In-soo Hwang, Yongin-si, KR;
Jong-hyung Kwun, Seongnam-si, KR;
David Mazzarese, Suwon-si, KR;
Robert Heath, Jr., Austin, TX (US);
Chan-byoung Chae, Austin, TX (US);
In-Soo Hwang, Yongin-si, KR;
Jong-Hyung Kwun, Seongnam-si, KR;
David Mazzarese, Suwon-si, KR;
Robert Heath, Jr., Austin, TX (US);
Chan-Byoung Chae, Austin, TX (US);
Samsung Electronics Co., Ltd., Suwon-si, KR;
Board of Regents, The University of Texas, Austin, TX (US);
Abstract
An apparatus and method are provided for beamforming in a MIMO wireless communication system. A base station includes a first calculator that repeatedly calculates downlink beamforming vectors of the user terminals to calculate the optimal beamforming vectors for the user terminals, a quantizer that quantizes the downlink beamforming vectors in order to transmit information of the downlink beamforming vectors, a control channel transmitter that feeds forward information of the quantized downlink beamforming vectors to the user terminals, a second calculator that calculates the final downlink beamforming vectors of the user terminals, and a beamforming transmitter that sums the beamformed TX signals of the user terminals and transmits the summed TX signals through a plurality of TX antennas.