False base station detection based on time of arrival or timing advance
US11516765B2 · kind B2 · utility
2Cited by
1References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 30, 2020 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Jan 15, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/0891
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A base station determines a window of time for arrival of uplink signals, wherein the window of time includes a start based on a first expected time of arrival for a first uplink signal from a first UE and an end based on a second expected time of arrival for a second uplink signal from a second UE. The base station detection detects a false base station, such as a L1 man-in-the-middle false base station, based on an uplink signal being received outside of the determined window of time for the arrival of uplink signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.