Method for predicting outdoor three-dimensional space signal field strength by extended COST-231-Walfisch-Ikegami propagation model
US10333638B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2015 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Oct 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/22
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for predicting outdoor three-dimensional space signal field strength by extended COST-231-Walfisch-Ikegami propagation model, comprising: establishing a three-dimensional scene model between a transmitting base station and a predicted region space; performing an on-site measurement according to a certain resolution in a prediction region and recording wireless signal strength information at a height of 1 m above the ground; acquiring a vertical cross section between the transmitting base station and a receiving point at a height of 1 m above the ground, and acquiring therefrom an average roof height, an average street width and an average between-building space; predicting a reception signal strength at a measurement point in a calculation formula of a COST-231-Walfishch-Ikegami propagation model; correcting the COST-231-Walfishch-Ikegami propagation model of the measurement point according to an error Δ between measured data and a prediction result; acquiring a vertical cross section between the transmitting base station and a receiving point at other height of the measurement point, and filtering therefrom buildings outside a Fresnel circle to re-acquire the average roof…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.