Invention Grant
US08014392B2 Method and system for advertising bluetooth multicast feature 有权
广播蓝牙组播功能的方法和系统

Method and system for advertising bluetooth multicast feature
Abstract:
Aspects of a method and system for advertising a Bluetooth multicast feature are provided. A master device may provide a multicast service to active slave devices during a Bluetooth piconet connection. A Bluetooth multicast packet addressed to a specific slave device may be transmitted over a point-to-point connection. The multicast packet may be decoded and acknowledged by each of the slave devices on the piconet. The master device may re-transmit the multicast packet addressed to the specific slave device over the same point-to-point connection when an acknowledgment or response indicating a reception of the multicast packet from each of active slave devices may not be detected. The point-to-point connection may be associated with a L2CAP channel identified by a determined unique channel identifier (M-CID). The point- to-point connection may be secured by assigning a common authentication key shared among the slaves of the piconet.
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