Wireless communication synchronization

H - Electricity – 04 – W

Patent

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Details

H04W 56/00 (2009.01) H04W 84/18 (2009.01) H04B 1/7156 (2011.01)

Patent

CA 2592164

A method of communicating among wireless devices includes providing a frequency hopping schedule to a target device. The frequency hopping schedule includes a sequence of frequencies. The method also includes, at the target device, alternating sleeping and listening on a frequency in the sequence of frequencies according to the frequency transmitting device, at the transmitting device, using the time base information to determine a current frequency of the target device, from the transmitting device, and transmitting a packet of information uniquely addressed to the target device.

Selon cette invention, un procédé permettant la communication entre des dispositifs sans fil consiste à fournir un programme de sauts de fréquence à un dispositif cible. Ce programme de sauts de fréquence comprend une séquence de fréquences. Ce procédé consiste également, au niveau du dispositif cible, à alterner le sommeil et l'écoute sur une fréquence de la séquence de fréquences en fonction du programme de sauts de fréquence, à échanger des informations de base temporelles entre le dispositif cible et le dispositif de transmission, au niveau du dispositif de transmission, mettant en oeuvre les informations de base temporelles pour déterminer une fréquence actuelle du dispositif cible, à partir du dispositif de transmission, et à transmettre un paquet d'informations adressé uniquement au dispositif cible.

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