Method and device for determining the fading coefficients of paths of a multi-path transmission channel linking, in particular, a base station and a cellular mobile telephone
US6954618B2 · kind B2 · utility
4Cited by
2References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2002 |
| Grant date | Oct 11, 2005 |
| Priority date | — |
| Expiry date | Mar 26, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/71057
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
First estimations of the fading coefficients of a multi-path transmission channel are carried out in the sense of maximum likelihood. Sets of Wiener filter coefficients are stored according to predetermined speeds of movement of the mobile terminal and predetermined power levels of the signal. The real speed of the mobile terminal is estimated and the power of the signal for each path is measured. From this, a set of Wiener filter coefficients is derived with which the first estimations are filtered to obtain the final estimation of the fading coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.