Method and apparatus for shared parameter estimation in a generalized rake receiver
US8275023B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2006 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | May 31, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/709727
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Signal impairment correlations for multiple signals in a received multipath signal are constructed by fitting parametric models associated with each high-data-rate signal in the multipath against measured impairment correlations. The estimated model fitting parameters are applied to form impairment correlation estimates for all signals. The models comprise a separate impairment covariance matrix scaled by a model fitting parameter for each high-data-rate signal and a noise covariance matrix scaled by a noise element model fitting parameter. The model fitting parameters may be estimated by a least-squares formulation and applied to form impairment correlation estimates for all signals of interest. The resulting impairment correlation estimates may be provided to G-RAKE receivers or joint scaling demodulators to demodulate the signals while suppressing interference from the high-data-rate signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.