Method for selecting a preferable wireless communications service provider in a multi-service provider environment
US6418318B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1995 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Dec 12, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W48/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication device locates a preferable wireless service provider in a multi-service provider environment using a frequency band search schedule. Initially, the communications device registers with a less preferred service provider in a first frequency band. While remaining registered with the less preferred service provider, the device examines several frequency bands in the order specified by the frequency band search schedule. A frequency band is examined by dividing the frequency band into many sub-bands, and by locating the strongest signal above a threshold within the sub-band being examined. The examination continues until a second frequency band having a more preferred service provider is located. The communication device then registers with the more preferred service provider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.