Method for optimizing near field links

Details Method for optimizing near field links Method for optimizing near field links

H - Electricity

04

B

H04B 7/26 (2006.01) H04B 5/02 (2006.01)

Patent

CA 2684287

In a Near Field Communications (NFC) link, the data link turn-around time is adjusted to optimize battery use while maximizing the data throughput. A receiving device immediately transmits any pending high priority control or data messages in its own queue in response to a message from the sending device, subject to the flow control status of the sending device. The value of the delay time before sending a SYMM primitive is selected in accordance with the types of link frames recently received.

L'invention concerne un procédé pour optimiser des liens de champ proche. Dans un lien de communication de champ proche (NFC), le temps d retournement de lien de données est ajusté pour optimiser l'utilisation d'une batterie tout en maximisant la capacité de données. Un dispositif récepteur transmet immédiatement tout message de commande de priorité élevée ou de données en attente dans sa propre file d'attente en réponse à un message du dispositif d'envoi, sujet au statut de commande de flux du dispositif d'envoi. La valeur du temps de retard avant envoi d'une primitive SYMM est sélectionnée selon les types des cadres de lien récemment reçus.

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