Patent ID: 9717027
Date: 2017-07-25
CPC Classifications: H04L,H04W

Claim:
1. A method of changing a machine-to-machine (M2M) gateway communicating with at least one M2M device having a constrained capability in an M2M system comprising a first layer and a second layer, the method comprising: generating, by the M2M gateway, a signal triggering a gateway change; transmitting, by the M2M gateway to an M2M server, a first notification indicating the gateway change; receiving, by the M2M gateway from the M2M server, a retrieve request for data generated by the at least one M2M device having the constrained capability in response to the first notification, wherein the data generated by the at least one M2M device having the constrained capability is stored in a data structure of a tree structure within the M2M gateway; and transmitting, by the M2M gateway to the M2M server, the data structure in response to the retrieve request, wherein the at least one M2M device having the constrained capability does not contain the first layer, wherein the first layer corresponds to a common service layer containing services commonly provided by the M2M system, and wherein the second layer corresponds to an application layer executing a specific M2M application.