Method of calculating signal propagation loss and creating a data base therefor
US6289203A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1998 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Feb 25, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for determining a final propagation loss of a signal transmitted from a transmitter (302) and received at a receiver (303) located in a proximity of a road (340) in a predefined area (350) includes calculating an environmental factor based on a transportation network information associated with predefined area (350), and determining the final propagation loss based on the environmental factor. A method of creating a data base used for calculating the propagation loss includes providing a preliminary data base, calculating a road density constant based on a road profile of predefined area (350), calculating a road constant based on a road classification profile of road (340), calculating the environmental factor by summing the road density constant, and the road constant, and modifying the preliminary data base according to the environmental factor to produce the data base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.