MIMO equalization for wireless communication systems
US8059734B1 · kind B1 · utility
5Cited by
2References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2008 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Sep 8, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03006
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method to equalize multiple-input multiple-output (MIMO) signals assigns a weight to the output of each receive chain in the MIMO system based on a first noise power value in each receive chain. A second noise power value can be computed using a difference between identical symbols from one or more weighted/un-weighted receive chain signals. Notably, the second noise power value includes thermal noise, phase noise, quantization noise, and distortion noise. The weighted outputs of the receive chains and the second noise power estimate may be used in an equalization calculation to recover the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.