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. 05, 2013
Filed:
Jan. 05, 2010
Ezer Melzer, Tel Aviv, IL;
Yu-ngok LI, Oakland, CA (US);
Adoram Erell, Herzliya, IL;
Daniel Yellin, Ra'anana, IL;
Ezer Melzer, Tel Aviv, IL;
Yu-Ngok Li, Oakland, CA (US);
Adoram Erell, Herzliya, IL;
Daniel Yellin, Ra'anana, IL;
Marvell World Trade Ltd., St. Michael, BB;
Abstract
A method includes configuring a transmitter and a receiver with first precoding matrices for mapping onto N transmit antenna ports of the transmitter R1≦N data streams. Each first precoding matrix is derived from respective second and third precoding matrices, which are configured for mapping onto respective numbers of antenna ports that are less than N. A set of precoding matrices is defined for mapping r<R1 data streams onto the transmit antenna ports. Each matrix in the set includes a subset of columns of a given matrix selected from the first precoding matrices. A candidate matrix is included in the set when the candidate matrix cannot be expressed as a weighted permutation of the columns of another matrix in the set. The data streams are mapped onto the transmit antenna ports using a precoding scheme based on one of the first precoding matrices.