Estimating spatial expansion matrix in a MIMO wireless communication system
US8295384B2 · kind B2 · utility
7Cited by
2References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2010 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Feb 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/42
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are provided to derive the spatial expansion matrix used when one wireless communication device sends a transmission with a number of spatial streams less than the number of its transmit antennas to another wireless communication device. These techniques involve, at the receiving wireless communication device, generating channel estimate information for received transmissions sent with different numbers of spatial streams and to determine when sufficient information is available to estimate a spatial expansion matrix for different spatial expansion scenarios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.