Method for predicting indoor three-dimensional space signal field strength using an outdoor-to-indoor propagation model
US10284316B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2015 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Oct 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/3913
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a method for predicting indoor three-dimensional space signal field strength by an outdoor-to-indoor propagation model, which comprises the steps of: establishing a three-dimensional space scene model from a transmitting base station to a target building; predicting space field strength of an outer envelope of the target building according to an extended COST-231-Walfisch-Ikegami propagation model; generating, on the outer envelope of the target building, a series of out-door-to-indoor virtual rays in accordance with a certain resolution; simulating a propagation procedure of the virtual rays using a ray tracing propagation model algorithm, to predict three-dimensional space signal field strength in the target building. In the present invention, an extended COST231-Walfisch-Ikegami propagation model is adopted for the transmitting base station and the outdoor region of the target building, while a ray tracing propagation model algorithm is adopted for the indoor region of the target building, which effectively combines an outdoor empirical propagation model and an indoor deterministic propagation model, so that a good equilibrium is achieved between…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.