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. 10, 2015
Filed:
May. 30, 2011
Applicants:
Chung Ku Yie, Incheon, KR;
Jeong Hwan OH, Seoul, KR;
Seok Hyun Yoon, Gwangmyeong-si, KR;
Inventors:
Assignee:
Humax Holdings Co., Ltd., Yongin-Si, Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 3/06 (2006.01); H04B 7/06 (2006.01); H04B 7/04 (2006.01);
U.S. Cl.
CPC ...
H04B 7/0639 (2013.01); H04B 7/0641 (2013.01); H04B 7/0452 (2013.01);
Abstract
Provided is a differential precoding method for reducing inter-user interference and increasing the sum rate. The differential precoding method comprises initializing a precoding matrix with a first (Precoding Matrix Indicator (PMI) for a channel between a mobile station and a base station; and updating the precoding matrix with a second PMI for the channel and side information for adaptively updating the precoding matrix according to a change speed of a state of the channel, wherein the side information has a quantized scalar value.