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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.:

US 8948300 B1

PDFFull Text
Expired
Date of Patent:
Feb. 03, 2015

Filed:

Sep. 07, 2011

Method and device for precoding in wireless communication system

Applicants:

Ki Jun Kim, Anyang-si, KR;

Sung Yoon Cho, Anyang-si, KR;

Dong Ku Kim, Anyang-si, KR;

Jin Young Jang, Anyang-si, KR;

Byoung Hoon Kim, Anyang-si, KR;

Hyuk Jin Chae, Anyang-si, KR;

Inventors:

Ki Jun Kim, Anyang-si, KR;

Sung Yoon Cho, Anyang-si, KR;

Dong Ku Kim, Anyang-si, KR;

Jin Young Jang, Anyang-si, KR;

Byoung Hoon Kim, Anyang-si, KR;

Hyuk Jin Chae, Anyang-si, KR;

Assignees:

LG Electronics Inc., Seoul, KR;

Industry-Academic Cooperation Foundation, Yonsei University, Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Sam K Ahn

Assistant Examiner:

Janice Tieu

Int. Cl.
CPC ...
H04L 25/49 (2006.01); H04B 7/04 (2006.01); H04L 25/03 (2006.01); H04L 5/00 (2006.01); H04L 25/02 (2006.01);
U.S. Cl.
CPC ...
H04B 7/0456 (2013.01); H04L 25/0391 (2013.01); H04L 25/03961 (2013.01); H04B 7/0465 (2013.01); H04B 7/0426 (2013.01); H04L 5/0023 (2013.01); H04L 25/0244 (2013.01); H04L 2025/03414 (2013.01); H04L 2025/03624 (2013.01);
Abstract

Provided is a method and a device for precoding in a wireless communication system. The method for precoding comprises the following steps: generating a first precoding matrix, W, for deciding the transmission power of one transmission antenna from a plurality of transmission antennas as the maximum power per antenna; generating a zero forcing (ZF) precoding matrix, T, which does not influence the transmission antenna having the power which is decided as the maximum power per antenna, based on the (i−1)precoding matrix W(i=2, 3, . . . ); determining α, a constant which has the transmission power of one transmission antenna from the rest of the transmission antennas, which do not have the transmission power as the maximum power per antenna, based on the T; and generating the iprecoding matrix Wbased on the Tand the α.

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Kim, Ki. (2015). Method and device for precoding in wireless communication system (U.S. Patent No. 8948300). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8948300

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