Specifications

Bluetooth uses full duplex transmission by having a Time-Division Duplex (TDD) scheme. A Bluetooth wireless specification consists of link layer and application layer classifications for product developers that support data, voice, and content centric applications. On the channel, information is exchanged through packets. Each packet is transmitted on a different hop frequency. A packet nominally covers a single slot, but can be extended to cover up to five slots. The Bluetooth protocol uses a combination of circuit and packet switching. Slots can be reserved for synchronous packets. Bluetooth can support an asynchronous data channel up to three simultaneous synchronous voice channels, or a channel that simultaneously supports asynchronous data and synchronous voice. Each voice channel supports 64 kilobits per second synchronous channel in each direction. The asynchronous channel can support maximal 723.2 kilobits per second asymmetric (and still up to 57.6 kilobits per second in the return direction), or 433.9 kilobits per second symmetric. The Bluetooth system consists of a radio unit, a link control unit, and a support unit for link management and host terminal interface functions. The Bluetooth system provides a point-to-point connection (only two Bluetooth units involved), or a point-to-multipoint connection. In the point-to-multipoint connection, the channel is shared among several Bluetooth units.
Moreover, for detailed specification of Bluetooth protocol click on the links below; however, the main purpose of our website is to discuss the Baseband specifications: