Patent ID: 11917046
Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A method for synchronising a node in a deterministic mesh network, comprising:
programming the access of the nodes of the network to the transmission medium according to a slotframe split into timeslots, said node being able to communicate with its neighbour nodes during timeslots of the slotframe by using transmission resources, said node being provided with a local clock; and
measuring the synchronisation offsets of the local clock of said node in relation to the local clock of at least one neighbour node by detecting a reception event of a packet transmitted by the at least one neighbour node or an acknowledgement of a packet transmitted by said node to the at least one neighbour node,
wherein said node estimates, from at least one synchronisation offset thus measured, a future synchronisation offset of its local clock for a timeslot following the one for which the last measurement was carried out and corrects its local clock by a correction value equal to a fraction of the future synchronisation offset thus estimated,
wherein the fraction is less than half of the estimated synchronisation offset.