Wireless receive signal strength indicator (RSSI)-based positioning
US12265167B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2022 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Oct 5, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method includes receiving wireless fingerprint data identifying multiple locations within a specified area and, for each location, one or more signal strength values associated with wireless signals received from one or more of multiple wireless transmitters. The wireless fingerprint data is missing signal strength values for one or more transmitters at one or more specific locations. The method also includes generating a training dataset by adding filler signal strength values in place of at least some missing values. The method further includes training a machine learning model using the training dataset. The model is trained to receive a specified location as input and generate predicted signal strength values as outputs. In addition, the method includes using the trained model to generate additional signal strength values. At least some additional signal strength values are to be used in place of at least a portion of the missing values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.