Invention Grant
- Patent Title: Method and system for advertising bluetooth multicast feature
- Patent Title (中): 广播蓝牙组播功能的方法和系统
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Application No.: US12046274Application Date: 2008-03-11
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Publication No.: US08014392B2Publication Date: 2011-09-06
- Inventor: Sherry Smith
- Applicant: Sherry Smith
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: McAndrews, Held & Malloy, Ltd.
- Main IPC: H04L12/28
- IPC: H04L12/28 ; H04J3/26 ; G06F11/00

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.
Public/Granted literature
- US20090232041A1 Method And System For Advertising Bluetooth Multicast Feature Public/Granted day:2009-09-17
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