Adaptive threshold setting for discontinuous transmission detection
US7483386B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2005 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Oct 4, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/44
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of adaptively determining a threshold for determining whether an error associated with a frame is an erasure or the result of a discontinuous transmission (DTX) uses a sample set of recently received frames yet avoids undesirable influences on the threshold that otherwise might be caused by the number of erasures in the sample set. A disclosed example uses a histogram-based approach and a simulated sort through the histogram to determine an appropriate threshold value. In a disclosed example the lesser of a bad frame threshold guideline value and a good frame threshold guideline value provide the threshold used to distinguish between a DTX and an erasure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.