Bluetooth communication method, device and system

A Bluetooth communication device, used for a point-to-point link, comprising:

• a package unit of standard Bluetooth packet, used for constructing a plurality of first-standard Bluetooth packets and transmitting each of the plurality of first-standard Bluetooth packets to a transmitting unit;
• a package unit of private-chain packet, used for segmenting a first signal data based on a length of a first time slice, and performing a compression-encoding, to construct, in a transmission slot, one of a plurality of first private-chain packets corresponding to the transmission slot based on a customized Bluetooth protocol, and transmitting each of the plurality of first private-chain packets to the transmitting unit;
• and
• the transmitting unit, used for transmitting each of the plurality of first-standard Bluetooth packets to a second terminal of a device of the link, and transmitting each of the plurality of first private-chain packets in an idle time of a transmission slot in which one corresponding first-standard Bluetooth packet is transmitted.

A Bluetooth communication device, used for a point-to-point link with bidirectional communication, comprising:

• a receiving unit, used for receiving each of a plurality of first-standard Bluetooth packets transmitted by a second terminal of a device of the link, and receiving each of a plurality of first private-chain packets transmitted by the second terminal of the device in an idle time of a transmission slot in which one corresponding first-standard Bluetooth packet is transmitted;
• wherein each of the plurality of first private-chain packets is constructed for the corresponding transmission slot based on a customized Bluetooth protocol;
• and
• a decoding unit of private-chain packet, used for decoding, based on the customized Bluetooth protocol, the plurality of first private-chain packets to obtain a corresponding first signal data.