Method and device for calculating bit error rate of received signal
US7607053B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2003 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Oct 14, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
System and method of estimating radio channel bit error rate (BER) in a digital radio telecommunications system wherein the soft output of the turbo decoder is used as pointer or index to look-up-tables containing the bit-wise BER of a certain bit in the data field of the received frame. A quantizer quantizes the received data frame and the quantized bit operates on a switch which selects the appropriate look-up-table. By means of accumulation and scaling the average BER of a certain amount of bits are calculated. Decoding bit-errors may occur but as they are submitted to posterior probability estimation, systematic errors which normally happen at low SNR are avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.