Process and device for estimating the speed of movement of a mobile terminal, in particular a cellular mobile telephone capable of operating according to the UMTS standard
US7065375B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2002 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Nov 24, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S11/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process for estimating a speed of movement of a mobile terminal operating in a wireless communication system and communicating with a base station via a transmission channel includes estimating fading of the transmission channel, and performing an autocorrelation on the fading for providing a first autocorrelation result. Reference autocorrelation results are calculated for predetermined values of speed of movement of the mobile terminal, with the calculating being based upon a known autocorrelation function performed on the fading. The process further includes comparing the first autocorrelation result to the various reference autocorrelation results, and estimating the speed of movement of the mobile terminal based upon the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.