Noise power estimation apparatus, noise power estimation method and signal detection apparatus
US8144822B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2008 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Dec 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/325
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A noise power estimation apparatus is disclosed. The noise power estimation apparatus includes: a part for calculating correlation between a received signal and a pilot signal so as to obtain a received power of the pilot signal for each path; a part for removing a multipath interference component from the received power of the pilot signal by using a predetermined power ratio between the pilot signal and a data signal so as to obtain a corrected received power of the pilot signal; a part for estimating an estimated total power of the pilot signal and the data signal included in the received signal based on the corrected received power and the predetermined power ratio; and a part for subtracting the estimated total power from a total power of the received signal so as to obtain a noise power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.