Apparatus, and associated method, for filtering a receive signal by adaptive operation of an input noise whitening filter
US8126099B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2007 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Nov 9, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03299
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus, and an associated method, for the receive part of a receiving station, such as a mobile station or other transceiver of a cellular communication system. Selection is made of filter characteristics to be exhibited by an adaptive, input noise whitening filter. A noise estimator estimates a noise component of a noise sequence. An autocorrelation estimator estimates the noise-component autocorrelation. A determination is made as to whether the autocorrelation exceeds a threshold. If so, filter characteristics are selected to cause the input noise whitening filter to operate to inject whitening noise into the received sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.