Method and apparatus for reduced rank channel estimation in a communications system
US6907270B1 · kind B1 · utility
136Cited by
2References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2000 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Dec 5, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0248
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for estimating a communication channel in a wireless communication system having multiple transmitter antennas using reduced rank estimation. The method exploits redundant and/or a priori knowledge within a system to simplify the estimation calculations. In one embodiment, a covariance matrix is calculated and analyzed to determine if the channel parameters may be reduced for channel estimation. If not, all parameters are used, otherwise a reduced rank matrix is used for the calculation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.