Invention Grant
US08849205B2 Method and system for multi-stage device filtering in a bluetooth low energy device
有权
蓝牙低能量器件中多级器件滤波的方法和系统
- Patent Title: Method and system for multi-stage device filtering in a bluetooth low energy device
- Patent Title (中): 蓝牙低能量器件中多级器件滤波的方法和系统
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Application No.: US14036155Application Date: 2013-09-25
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Publication No.: US08849205B2Publication Date: 2014-09-30
- Inventor: Prasanna Desai , Angel Polo , Chikan Kwan , Yuan Zhuang , Ash Kapur , Norbert Grunert , Brima Ibrahim , John Walley
- Applicant: Broadcom Corporation
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: McDermott Will & Emery LLP
- Main IPC: H04B7/00
- IPC: H04B7/00 ; H04W4/00 ; H04L29/06 ; H04W8/00 ; H04W84/18 ; H04W28/04 ; H04L1/00 ; H04W28/06

Abstract:
A Bluetooth low energy (BLE) device receives advertising packets from an advertising BLE device. The BLE device filters the received advertising packets utilizing hardware to search for the advertiser. If the advertiser is not found by the hardware, the packet filtering continues utilizing firmware. Device identity information, comprising non-private and/or private device identities, of preferred BLE devices is partitioned to form a different white list for the hardware, firmware, and host, respectively, to concurrently support privacy and white listing. If the advertiser is found by the hardware, the hardware sends a response to the advertiser following a successful CRC check performed in the hardware. If the advertiser is found by the firmware, the device identity information of the advertiser is inserted in the white list for the hardware. The host may be awakened based on the device configuration and/or attribute type information of the received advertising packets.
Public/Granted literature
- US20140057567A1 METHOD AND SYSTEM FOR MULTI-STAGE DEVICE FILTERING IN A BLUETOOTH LOW ENERGY DEVICE Public/Granted day:2014-02-27
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