Methods and apparatus for improving the resilience of a positioning network
US12335885B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2020 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Dec 4, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus are provided for improving the resilience of a network of positioning-unit devices to failure of the reference device that controls the network timebase via timing information in its signal. In certain embodiments a predetermined one of the positioning-unit devices is configured to monitor the reference signal, assess serviceability of that signal and take control of the network if it determines that signal is unserviceable. Continuity of network synchronisation is thereby maintained despite the reference signal being unserviceable. Preferably the predetermined positioning-unit device is configured to obtain information on the reference signal from at least one other positioning-unit device for assessing reference signal serviceability. If the reference device recovers from a failure it can re-enter the network by synchronising its signal to a signal from one of the positioning-unit devices, and may then negotiate with the predetermined positioning-unit device to resume control of the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.