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:
Sep. 28, 2010
Filed:
Jun. 02, 2008
Yu-ro Lee, Daejon, KR;
Byung-chan Kim, Goyang-si, KR;
Minho Cheong, Daejon, KR;
Chanho Yoon, Daejon, KR;
Je-hun Lee, Daejon, KR;
Kwhang-hyun Ryu, Daejon, KR;
Cheol-jung Kim, Daejon, KR;
Tae-hyun Jeon, Seongnam-si, KR;
Sok-kyu Lee, Daejon, KR;
Yu-Ro Lee, Daejon, KR;
Byung-Chan Kim, Goyang-si, KR;
Minho Cheong, Daejon, KR;
Chanho Yoon, Daejon, KR;
Je-Hun Lee, Daejon, KR;
Kwhang-Hyun Ryu, Daejon, KR;
Cheol-Jung Kim, Daejon, KR;
Tae-Hyun Jeon, Seongnam-si, KR;
Sok-Kyu Lee, Daejon, KR;
Abstract
Provided are a QR decomposition apparatus and method for a MIMO system. The QR decomposition apparatus includes: a norm calculator for calculating a vector size norm for a channel input; a Q column calculator for calculating a column value of a unitary matrix Q by multiplying a delayed channel input with √{square root over (norm)}; an R row calculator for receiving the delayed channel input, the output of the Q column calculator, and 1/√{square root over (norm)}, and calculating a row value of an upper triangular matrix R; a Q update calculator for receiving the delayed channel input, the output of the R row calculator, and a delayed output of the Q column calculator, and calculating a Q update matrix value; and a norm update calculator for receiving a delayed output of the norm calculator and an output of the R row calculator, and outputting a norm update matrix value.