Radio station for client localization in multipath indoor environment
US11754658B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2022 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Mar 3, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radio station, in particular an access point, for client localization in a multipath indoor environment is disclosed. The radio station comprises: a circular antenna array comprising uniform circularly arranged antenna elements; and a processor configured to: transform first input data from the circular antenna array into second input data using a transform that transforms the first steering vector of the circular antenna array into a second steering vector of a virtual linear antenna array; and transform the second input data into third input data by using a transform that transforms the second steering vector of the virtual linear antenna array into a third steering vector of a second virtual linear antenna array, comprising a larger number of antenna elements than the virtual linear antenna array; and determine an angle of arrival based on the third input data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.