APPARATUS AND METHOD FOR A DYNAMIC SCAN INTERVAL FOR A WIRELESS DEVICE

• US 20170078954A1
• Filed: 11/22/2016
• Published: 03/16/2017
• Est. Priority Date: 08/25/2015
• Status: Active Grant

• Current Assignee: Afero, Inc.
• Original Assignee: Afero, Inc.
• Inventors: Zakaria, Omar
• Granted Patent: US 9,942,837 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An apparatus and method are described for adjusting a scan interval or scan width of a BTLE device. For example, one embodiment of a method comprises: placing a Bluetooth Low Energy (BTLE) device of an IoT device into a low power or sleep state; waking the BTLE device from the low power or sleep state in response to a specified schedule or set of conditions; attempting to establish a connection between the BTLE device and a BTLE device of an IoT hub using a first scan width and/or scan interval; dynamically adjusting the first scan width and/or scan interval to a second scan width and/or scan interval, respectively, based on a randomly-selected value if a connection is not established after a specified time period; and reattempting to establish a connection between the BTLE device of the IoT device and the BTLE device of the IoT hub using the second scan width and/or scan interval.

Claims

1. A method comprising:

placing a Bluetooth Low Energy (BTLE) device of an Internet of Things (IoT) device into a low power or sleep state;

waking the BTLE device from the low power or sleep state in response to a specified schedule or set of conditions;

attempting to establish a connection between the BTLE device and a BTLE device of an IoT hub using a first scan width and/or scan interval;

dynamically adjusting the first scan width and/or scan interval to a second scan width and/or scan interval, respectively, based on a randomly-selected value if a connection is not established after a specified time period, wherein dynamically

adjusting the scan width or scan interval to a second scan width or scan interval based on a randomly-selected value comprises selecting modifying the first scan width or scan interval using the randomly-selected value, wherein the second scan width or scan interval is limited to a specified range of acceptable values; and

reattempting to establish a connection between the BTLE device of the IoT device and the BTLE device of the IoT hub using the second scan width and/or scan interval.