Handover method based upon channel quality
US5649290A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1994 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Dec 14, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is disclosed for executing handovers in a cellular network, based upon channel quality measurements. For AMPS service, the method involves the monitoring of a supervisory audio tone (SAT) signal which is superimposed on the voice signal that is transmitted between base stations and mobile terminals traveling within a cellular network, and handovers are executed in dependence upon noise power measurements associated therewith. For TDMA service, the method involves the monitoring of a raw data signal associated with digital transmissions, and handovers are executed in dependence upon noise power measurements associated therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.