Synchronization of media access control (MAC) superframes

Details Synchronization of media access control (MAC) superframes Synchronization of media access control (MAC) superframes

2008-09-04

2010-11-02

Sharma, Sujatha (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S041200, C455S519000, C370S503000, C370S350000

Reexamination Certificate

active

07826860

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.

REFERENCES:
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patent: 2008/0137599 (2008-06-01), Ham et al.
patent: 2008/0151940 (2008-06-01), Fanson et al.

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