Network acquisition mechanism for mobile RF data
US5548818A · kind A · utility
21Cited by
9References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1992 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Aug 25, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for radio communications between mobile units and base stations geographically distributed through a substantial geographic area described. The system automatically finds and engages broadcast frequency for each geographic region. The engagement is confirmed at both the mobile unit and network so that both can begin data transmission and reception between each other as well as keep track of the status of one another. The system also verifies the correct base station has been engaged as well as automatically terminates communications once the mobile unit passes out of coverage for that base station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.