Angle of arrival (AoA) determination for Bluetooth® Low Energy (BLE)
US12143195B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2020 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Feb 22, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/80
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communication receiver can determine an angle of arrival (AoA) of a communication signal. The communication receiver includes multiple receiving antennas and processing circuitry. The processing circuitry determines multiple phase shifts over multiple instances in time from first samples of a communication signal as observed by a reference receiving antenna selected from among the multiple receiving antennas, samples the communication signal as observed by the selected receiving antennas from among the multiple receiving antennas over the multiple instances in time to provide second samples of the communication signal, removes the multiple phase shifts from corresponding samples from among the second samples of the communication signal to provide phase corrected second samples of the communication signal, and determines the AoA of the communication signal from the phase corrected second samples of the communication signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.