Method and system for creating a radio frequency signature for a signature region in a coverage area of a wireless communication system
US6256506A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1999 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Dec 30, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/18
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a wireless communication system, radio frequency signal propagation characteristics associated with a signal transmitted from several locations in the coverage area of the wireless communication system are measured. Next, a plurality of signature regions are defined in the coverage area, wherein the signature regions each contain several selected locations having selected measured radio frequency signal propagation characteristics. For a selected signature region, the associated measured radio frequency signal propagation characteristics are processed to produce a spatially averaged radio frequency signature for the selected signature region. The spatially averaged radio frequency signature represents the dominant features of the radio frequency signal propagation characteristics of a signal transmitted within the selected signature region. Finally, an association between the spatially averaged radio frequency signature and the selected signature region is recorded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.