Methods and apparatus for wireless channel estimation using interpolation elimination in the Eigen domain
US8385489B2 · kind B2 · utility
3Cited by
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18Claims
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Key dates
| Filing date | Aug 25, 2009 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Aug 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03414
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus are provided for wireless channel estimation using interpolation elimination in the Eigen domain. Channel components at known OFDM symbol locations are interpolated to other OFDM symbol locations. Methods and apparatus are provided for interpolating in the Eigen domain between reference signals (i.e., training signals) to estimate the equalizer coefficients with a reduced complexity. In particular, one aspect of the present invention performs the required interpolation before a required matrix inversion in the Eigen domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.