Mitigating of rogue responders when geo-locating wireless devices
US11617154B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2021 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Dec 14, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/63
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and measuring station to determine the geo-location of a wanted target station in the presence of rogue responder stations are disclosed. One method includes: transmitting a packet with a fictitious address not corresponding to the wanted target station address; transmitting a packet with the wanted target station address; determining at least one of: a first difference between a round trip time (RTT) associated with a response packet from a responder station and an RTT associated with a response packet from the wanted target station; and a second difference between a time of arrival (TOA) associated with the responder station's response packet and a TOA associated with the wanted target station's response packet; and distinguishing between the response from the responder station and the response from the wanted target station based on at least at least one of the first difference and the second difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.