Apparatus for generating precoding matrix codebook for MIMO system and method of the same
US8238461B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 31, 2007 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Apr 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03802
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus for generating a precoding matrix codebook includes a matrix group generator to generate a first group of unitary matrices based on a vector-based codebook for precoding of a multiple input multiple output (MIMO) communication scheme; a matrix group extender to extend the first group of unitary matrices to generate a second group of unitary matrices; and a matrix group selector to select a group of columns corresponding to a communication rank from each of the unitary matrices that are elements of the second group so that the columns are optimized based on a distance between the columns corresponding to the communication rank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.