Method and apparatus for antenna array channel feedback
US8971437B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2012 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Jan 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03891
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus provide antenna array channel feedback. The method can include receiving, at a wireless terminal, a set of channel state information reference signals. The method can include determining a precoding matrix based on the received set of channel state information reference signals. The precoding matrix can have a representation in terms of three components. The first component of the three components can be determined from a first set of vectors. The second component of the three components can be determined from a first set of parameters. The third component of the three components can be determined from a second set of parameters. The second set of parameters can be a set of unit-magnitude scalars. The method can include transmitting, by the wireless terminal, a representation of at least one of the first component, the second component, and the third component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.