Synchronization of media access control (MAC) superframes
US7826860B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2008 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Apr 11, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W56/002
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device and method for of synchronizing a MAC superframe of a wireless device is disclosed. The wireless device can be located within a chain of a plurality of other wireless devices. The method includes receiving beacons from at least one other device during a superframe of the wireless device, determining a superframe offset for each of the other wireless devices based on timing of the received beacons, determining a corrective delay based on the superframe offsets, inserting the corrective delay within a current superframe of the wireless device, and inserting a predictive delay within the current superframe, the predictive delay being determined by an estimate of a difference between a frequency a clock of the wireless device and a frequency of a slowest clock of the other wireless devices within the chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.