Method of synchronizing a wireless device using an external clock
US7573865B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2005 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Dec 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/2693
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method is provided for operating a dual-use wireless device. The method includes: receiving an external timing signal at a first wireless circuit in the device; synchronizing a first clock in the first wireless circuit with the external timing signal; sending a first internal timing signal from the first wireless circuit to a second wireless circuit in the device, after the synchronizing; and listening for a remote periodic control signal at the second wireless circuit for a set monitoring time, a start of the monitoring time being based on the first internal timing signal. The second wireless circuit sends an association request if the second wireless circuit hears the remote periodic control signal within the monitoring time, and sends a local periodic control signal if the second wireless circuit does not hear the remote periodic control signal within the monitoring time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.