Method and device for controlling device by using Bluetooth Low Energy (LE) technique

A third device for controlling a connection between a first device and a second device by using Bluetooth Low Energy (LE) technology, the third device comprising:

• a transceiver;
• and
• a processor functionally connected to the transceiver,
• wherein the processor:
• controls the transceiver to receive, from the first device, a first advertising message including first role information,
• receives, from the second device, a second advertising message including second role information,
• wherein the first role information and the second role information indicates a role of a device in a procedure for establishing the connection,
• connects with the first device based on the first advertising message by using a Bluetooth LE connection,
• connects with the second device based on the first and second advertising messages by using a Bluetooth LE connection,
• controls the transceiver to transmit, to the first device, a first write request message requesting for writing a first characteristic value based on the first role information through the Bluetooth LE connection, and
• transmits, to the second device, a second write request message requesting for writing a second characteristic value based on the second role information through the Bluetooth LE connection,
• wherein a first operation mode of the first device and a second operation mode of the second device are respectively set based on the first characteristic value and the second characteristic value,
• wherein the first operation mode and the second operation mode are related to message transmission and reception timing of the first device and the second device, and
• wherein the connection between the first device and the second device is established based on the first operation mode and the second operation mode set by the third device.