BLE Peripheral Communication Priority for Overlap Disconnection Risk
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Solution Overview
Problem
In Bluetooth Low Energy (BLE) communication, when multiple centrals attempt to communicate with a peripheral, overlapping communication periods due to frequency deviations can lead to repetitive communication for one central and disconnection for the other, impairing communication stability.
Innovation Solution
A wireless communication device identifies a priority candidate device with a high likelihood of disconnection and grants communication permission to this device over others, prioritizing communication to maintain stability by avoiding overlapping communication periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple central devices communicate with a single peripheral device simultaneously, then communication coverage and connectivity are improved, but communication stability deteriorates due to overlapping communication periods
Solution Approach 1:
The patent implements dynamic permission granting where the peripheral device adaptively controls which central devices can communicate during overlapping communication periods. The permission granting mechanism dynamically adjusts based on current communication status, ensuring that only one central device communicates with the peripheral at any given time, thus preventing communication conflicts while maintaining multiple potential connections.
Solution Approach 2:
The system uses feedback from communication status monitoring to determine permission granting. When the peripheral detects that a communication period overlaps with an existing communication, it grants permission only to the appropriate central device based on the overlap detection, thereby maintaining communication stability while allowing multiple centrals to connect.
2Productivity
If communication periods of multiple centrals overlap, then connection opportunities are increased, but communication reliability deteriorates due to repeated disconnections
Solution Approach 1:
The peripheral device performs preliminary detection of communication period overlaps before allowing communication to proceed. By detecting the overlap in advance and granting permission accordingly, the system prevents communication conflicts from occurring, thereby maintaining both connection opportunities and communication reliability.
3Adaptability or versatility
If frequency deviation between crystal oscillators occurs, then communication flexibility is maintained, but communication stability deteriorates due to overlapping periods in later stages
Solution Approach 1:
The system continuously monitors communication periods and detects overlaps caused by frequency deviations. When overlaps are detected, the permission granting mechanism adjusts to prevent conflicts, thereby maintaining communication stability even when frequency deviations occur over time.
Data Source
AI summary
A specific unit in a first wireless communication device determines whether a second wireless communication device is a priority candidate device based on the possibility that the connection with the second wireless communication device will be disconnected. When a communication control unit receives a permission request for a communication with the second wireless communication device from a connection control unit, it grants a permission to a communication with a “priority candidate device”.