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A method to avoid the expected discovery delay of ble devices from reaching a maximum value

A technology of device discovery and maximum value, applied in the field of communication, to avoid the effect of long time

Active Publication Date: 2022-04-15
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above method cannot avoid the expected discovery delay of the BLE device from taking a maximum value

Method used

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  • A method to avoid the expected discovery delay of ble devices from reaching a maximum value
  • A method to avoid the expected discovery delay of ble devices from reaching a maximum value
  • A method to avoid the expected discovery delay of ble devices from reaching a maximum value

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Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with specific examples, but the embodiments of the present invention are not limited thereto.

[0037] In order to prevent the expected discovery delay of the BLE device from taking a maximum value, an embodiment of the present invention provides a method for preventing the expected discovery delay of a BLE device from taking a maximum value, such as figure 1 As shown, the method includes the following steps:

[0038] S10: Determine a target operating parameter; wherein, the target operating parameter is an operating parameter related to BLE device discovery, and the target operating parameter does not include a fixed advertising cycle of the advertiser BLE device.

[0039] Exemplarily, the working parameters related to BLE device discovery may include: the scanning period T of the scanning BLE device s , The scanning window length T of the scanning BLE device w , the duration τ required fo...

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PUM

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Abstract

The invention discloses a method for avoiding the expected discovery delay of a BLE device from obtaining a maximum value, including: determining a target operating parameter; wherein, the target operating parameter is an operating parameter related to BLE device discovery, and the target operating parameter The parameters do not include the fixed advertising cycle of the advertiser BLE device; based on the target operating parameters, construct the first fixed advertising cycle set that makes the expected discovery delay obtain a maximum value; use the preset objective function to analyze the first fixed advertising cycle The set is subjected to BLE normalization processing to obtain a second fixed advertising cycle set that maximizes the expected discovery delay, so that the advertiser BLE device does not use any of the second fixed advertising cycle sets when performing device discovery. Fixed advertising cycle. The present invention can prevent the expected discovery delay of the BLE device from taking a maximum value.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a method for preventing the expected discovery delay of a BLE device from obtaining a maximum value. Background technique [0002] BLE (Bluetooth Low Energy, Bluetooth Low Energy) is a widely used wireless communication technology and one of the key technologies of the Internet of Things. At present, many smart devices, such as smartphones, smart bracelets, Bluetooth headsets, and smart speakers, support BLE. The BLE specification divides devices into Scanner and Advertiser. Two BLE devices must first complete device discovery before connecting. One of the BLE devices acts as an advertiser and periodically triggers advertisement events. Each advertisement event includes sending advertisement packets to three advertisement channels 37, 38 and 39; the other BLE As the scanner, the device periodically scans the three advertising channels. When the scanner receiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/80H04W24/06G06Q30/02
CPCH04W4/80H04W24/06G06Q30/0241G06Q30/0272
Inventor 沈中李振
Owner XIDIAN UNIV