BLE products operates in the 2.4 GHz band, it remains in sleep mode constantly unless a connection is initiated. The actual connection times are only a few milliseconds because its data rates are so high at 1 Mb/s.

Normally a BLE application system is composite of gateway and beacon, the beacon is sending Bluetooth broadcast signal which includes valuable information, the gateway is hardware to receive the Bluetooth signal, process, and analysis to meet the application requirement.

Typical Application Of BLE IOT Gateway & Beacon
Based on the different operation modes, BLE technology can be used for location service, data transition, and mesh network for equipment connection.