METHOD FOR CHANGING GATEWAY IN MACHINE-TO-MACHINE (M2M) SYSTEM AND DEVICE THEREFOR

摘要

The present invention relates to a gateway changing method performed by a machine-to-machine (M2M) gateway which communicates with at least one M2M device having a constrained capability in an M2M system that includes a first layer and a second layer, and the a device therefor, the method comprising the steps of: receiving a trigger signal for indicating a gateway change through a first layer of the M2M gateway; and transmitting, to an M2M server, a first notification for indicating the gateway change through the first layer of the M2M gateway, wherein the M2M device having the constrained capability is a device that does not have the first layer, data generated in the second layer of the M2M device having the constrained capability is managed or stored in a data structure of a tree structure by the first layer of the M2M gateway, and the data structure that includes the data is retrieved by the M2M server after the notification has been transmitted to the M2M server.

主权项

1. A method of changing a gateway by a M2M gateway communicating with at least one or more M2M devices having constrained capability in a M2M (machine-to-machine) system comprising a first layer and a second layer, the method comprising:
receiving a trigger signal indicating gateway change via a first layer of the M2M gateway; and transmitting a first notification indicating the gateway change to a M2M server via the first layer of the M2M gateway, wherein the M2M device having the constrained capability correspond to a device not containing the first layer, wherein data generated in the second layer of the M2M device having the constrained capability is managed or stored in a data structure of a tree structure by the first layer of the M2M gateway and wherein the data structure containing the data is retrieved by the M2M server after the notification is transmitted to the M2M server.