Patent ID: 9450777
Filing Date: 2016-09-20
CPC Classification: G06Q,H04L

Claim Text:
1. An electric device comprising: a communication unit configured to communicate with at least one of a gateway and a plurality of other electric devices; and a controller configured to broadcast a gateway search request signal for searching for a gateway, control the communication unit to automatically transmit a registration request signal to at least one of the gateway and the plurality of other electric devices for registering the electric device to the gateway if the communication unit receives a gateway search response signal, wherein the controller is configured to read a NodeB list in which at least one of the gateway and the other electric devices is used as a NodeB, upon receiving a gateway search request signal from at least one of the plurality of other electric devices, the controller is configured to determine whether the gateway is present in the NodeB list, and controls transmission of a gateway search response signal to the at least one other electric device when gateway information is present in the NodeB list, the controller controls transmission of the gateway search request signal to other electric devices stored in the NodeB list when the gateway is not present in the NodeB list.