Method and apparatus of determining bad frame indication for speech service in a wireless communication system
US7434117B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2005 |
| Grant date | Oct 7, 2008 |
| Priority date | — |
| Expiry date | Nov 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/09
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of operating a receiver to determine a bad frame indication (BFI) of a received speech block includes decoding speech information bits of the received speech block; re-encoding the decoded speech information bits; comparing the received speech information bits with the corresponding decoded and re-encoded speech information bits to calculate a number of erroneous bits; determining a mode information of the received speech block; calculating a signal quality measurement of the received speech block; calculating a block quality metric according to the mode information, wherein the block quality metric is related to both the number of erroneous bits and the signal quality measurement; and setting the BFI of the received speech block according to the block quality metric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.