BLE Connection Event Length Control for Collision-Free Data Transfer
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Solution Overview
Problem
BLE devices experience packet loss, latency, and underutilized OTA bandwidth due to misaligned connection event lengths and scheduling conflicts, which are not effectively managed by existing systems.
Innovation Solution
A wireless controller adjusts connection event lengths and parameters to align link timings, reducing collisions and improving throughput and bandwidth utilization by managing data transfers in wireless connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connection event lengths are not aligned between devices, then scheduling flexibility is maintained, but packet loss and latency increase due to collisions
Solution Approach 1:
The patent applies preliminary action by having the central device determine connection event lengths and communicate them to peripheral devices before data transfers occur. This advance planning allows peripheral devices to align their connection events with the central device, preventing collisions and packet loss while maintaining scheduling flexibility.
Solution Approach 2:
The patent implements feedback through the communication of connection event length information from the central device to peripheral devices. This feedback mechanism enables peripheral devices to adjust their timing and alignment based on the central device's schedule, reducing latency and improving reliability without requiring complex bidirectional synchronization.
2Productivity
If connection events are misaligned, then device autonomy is preserved, but bandwidth utilization decreases due to underutilized transmission opportunities
Solution Approach 1:
By determining and communicating connection event lengths in advance, the system enables peripheral devices to prepare and transmit data at optimal times. This preliminary coordination maximizes bandwidth utilization by ensuring that transmission opportunities are not missed, while minimizing latency through predictable scheduling.
Solution Approach 2:
The patent applies dynamics by allowing connection event lengths to be adjusted and optimized based on traffic conditions and device requirements. This dynamic approach enables the system to adaptively allocate bandwidth, improving overall productivity while maintaining flexibility in timing arrangements.
Data Source
AI summary
Implementations disclosed include techniques and systems that include obtaining a connection event length for a wireless connection associated with a plurality of devices. The techniques and systems further include adjusting, using the connection event length, a parameter characterizing a quality of the wireless connection.