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. 28, 2014
Filed:
Dec. 05, 2011
Mark Kent, Vista, CA (US);
Vinko Erceg, Cardiff, CA (US);
Jun Zheng, San Diego, CA (US);
Uri Landau, San Diego, CA (US);
Mark Kent, Vista, CA (US);
Vinko Erceg, Cardiff, CA (US);
Jun Zheng, San Diego, CA (US);
Uri Landau, San Diego, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
Aspects of a method and system for an alternating channel delta quantizer for MIMO pre-coders with finite rate channel state information feedback may include quantizing a change in channel state information in a MIMO pre-coding system onto a codebook using a cost function and selecting the codebook from a set of codebooks; and generating the set of codebooks from a plurality of codebooks, where each may comprise one or more unitary matrices. The channel state information may be a matrix V that may be generated using Singular Value Decomposition (SVD) and/or Geometric Mean Decomposition (GMD). The selecting of the codebooks may be enabled by alternating between the elements of the set of codebooks. The cost function f(A) may be defined by the following relationship: where A is a matrix of size N by N and ais element (i,j) of matrix A.