Systems and methods for precise radio frequency localization in the presence of multiple communication paths
US10757675B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2016 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Oct 13, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for determining locations of wireless nodes in a network architecture are disclosed herein. In one example, an asynchronous system includes a first wireless node having a wireless device with one or more processing units and RF circuitry for transmitting and receiving communications in the wireless network architecture including a first RF signal having a first packet. The system also includes a second wireless node having a wireless device with a transmitter and a receiver to enable bi-directional communications with the first wireless node in the wireless network architecture including a second RF signal with a second packet. The first wireless node determines a time of flight estimate for localization based on a time estimate of round trip time of the first and second packets and a time estimate that is based on channel sense information of the first and second wireless nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.