Attack detection in round-trip timing estimation
US12425862B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2023 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Apr 22, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W56/0035
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless device includes a receiver adapted with Bluetooth® low energy (BLE) capability and logic at least one of coupled to or integrated within the receiver. The logic determines frequency samples of bits of a predetermined pattern of a packet during a round-trip timing estimation of the packet, wherein the packet is received during a keyless access attempt of an enclosure having a transmitter and the receiver. The logic compares, to a reference frequency sample, the frequency samples of bits of the predetermined pattern. In response to determining a difference between the reference frequency sample and the frequency samples of bits of the predetermined pattern, the logic detects an intrusion associated with the predetermined pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.