Method and apparatus for channel estimation in radio systems by MMSE-based recursive filtering
US7508870B2 · kind B2 · utility
3Cited by
13References
15Claims
0Family size
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Key dates
| Filing date | Apr 9, 2004 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Feb 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0234
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A sequence of unfiltered channel estimation values xk is determined in a method for calculation of filtered channel estimation values dk in radio systems. A specific set of filter coefficients is selected from two or more filter coefficient sets, with the filter coefficients being calculated on the basis of the MMSE optimality criterion for a predetermined recursive digital filter (F). The sequence of unfiltered channel estimation values is then filtered by means of this recursive digital filter (F) using the selected filter coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.