Bluetooth pairing process

Because there are many users in the hardware of Bluetooth pairing, encounter many problems, whether it is performs pairing, or permanent pairing, in the pairing process and necessary operation is too complex, in the past during the connection process, the need to use a personal identification code to ensure the security of the connection, The improved connection is automatically paired and connected using a digital passcode, for example, by selecting a connection specific device in the phone's options, and then automatically listing the devices that are available in your environment, and automatically connecting.

The short-distance pairing also has the NFC (near Field communication) mechanism for pairing and communicating with each other in two Bluetooth-enabled handsets. NFC is a short-range wireless RFID technology that replaces traditional radio transmissions based on electromagnetic waves for short-distance, one-to-one meters of on-line applications. As the NFC mechanism controls the pairing initiation detection, when 2 devices in the range are paired, simply tap on the phone screen to accept online. However, to apply NFC functionality, the system must be built into an NFC chip or have the relevant hardware capabilities.

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