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1. (WO2018203001) HANDOVER METHOD FOR A TAG IN A WIRELESS SENSOR NETWORK

Pub. No.:    WO/2018/203001    International Application No.:    PCT/FR2018/051097
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Fri May 04 01:59:59 CEST 2018
IPC: H04W 36/36
H04W 36/32
G01S 1/80
H04W 84/20
Applicants: MAPLE HIGH TECH
Inventors: BEGOC, William
TANCEREL, Ludovic
Title: HANDOVER METHOD FOR A TAG IN A WIRELESS SENSOR NETWORK
Abstract:
The present invention relates to a handover method for a tag in a wireless sensor network having a cellular architecture. At the tag or the coordinating anchor, the distances separating the tag from the different coordinating anchors in the cell are used to determine if the tag is in a coverage area of the cell. If the tag is not in a coverage area of the cell, the tag searches for the beacon signal from neighbouring cells that has the strongest power over a plurality of superframes. If this power value satisfies a selection criterion, the tag establishes a link with the coordinating anchor of this new cell and breaks the link with the coordinating anchor of the previous cell.