Master for bluetooth communication and method for establishing beacon channel thereof

A master communicating with slaves, comprising:

• transmitting and receiving means for transmitting and receiving signals to and from the slaves;
• state information obtaining means for obtaining state information from the transmitting and receiving means, the state information including numbers of parked slaves and types of slaves which are Synchronous Connection Oriented;
• park parameter calculating means for calculating park parameters based on the state information, the park parameters including a number of slots of a synchronous section of a beacon channel which maintains connection with the parked slaves, and a number of slots per unit access window of an access window section of the beacon channel;
• and
• controlling means establishing the beacon channel for communicating with the slaves through the transmitting and receiving means, wherein the controlling means controls a variable duration of the beacon channel according to the park parameters.