Imminent change warning
US5722068A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1994 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Jan 26, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A cellular telephone, in its most preferred embodiment, performs a method for notifying a digital cellular telephone user of an imminent communication disconnection. The preferred method includes, at least, generating at least one condition indication representative of at least one communication condition, analyzing the condition indication, determining whether a communication disconnection is imminent, enhancing quality of received communication signals when possible, and notifying the user of an imminent communication disconnection. Exemplary condition indications include, at least, continuous count and rate indications of frame checksum errors, insufficient quality frames, symbol errors, and chip errors, output power level indication, received signal strength indication, soft handoff status indication, other pilot signal indication, and current pilot signal strength indication. One exemplary analysis technique of determining when a communication disconnection is imminent includes evaluating whether any of a set of condition indications violates a predefined threshold indication, while other exemplary analysis techniques include evaluating whether fixed or historically adaptive c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.