Method and base station system for voice transmission via a radio interface in a digital radio communication system having mobile stations and base stations
US6128513A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1997 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Dec 17, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W28/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a method for voice transmission via radio interface in a digital radio communication system, at least one signal is transmitted between a mobile station and a base station. At least one characteristic value with respect to the transmission conditions of the radio interface is identified from the signal. The characteristic value or values are compared to a threshold and a voice encoder is selected according to the comparison result, with a voice encoder having a higher data rate being employed given good transmission conditions and a voice encoder having a lower data rate given poor transmission conditions. A base station system operating according to the method is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.