Method and device for multiple control of IoT device on basis of C2C account linkage in wireless LAN system in smart home environment

A first controller in a wireless local area network (WLAN) system of a smart home environment, the first controller comprising:

• a memory;
• a transceiver;
• and
• a processor being operatively connected to the memory and the transceiver,
• wherein the processor is configured to:
• perform a connection with a first cloud based on a first account;
• receive commissioning information for a controlee of a second controller based on the connection between the first cloud and a second cloud;
• and
• add commissioning for the controlee based on the commissioning information,
• wherein the second controller is connected to the second cloud based on a second account,
• wherein the first and second accounts are linked to each other, and
• wherein the commissioning information includes a manufacturer of the controlee, a model name, a device type, a supported function, a connected user account, firmware information, a standard specification version, a Universally Unique Identifier (UUID) of the second controller, an IP (Internet Protocol) address, a port number and a MAC address.