Bluetooth MTU Sounding for Reliable Data Transmission
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Solution Overview
Problem
Bluetooth communication efficiency is compromised due to unreliable maximum transmission unit (MTU) values caused by protocol compatibility issues and device performance changes, leading to packet loss and communication interruptions.
Innovation Solution
Implementing an MTU sounding method where a data packet is sent during data transmission to negotiate and verify a stable MTU value between devices, allowing for real-time adjustment based on channel quality and device capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If MTU values are directly exchanged between devices without verification, then negotiation is simple and fast, but packet loss and communication interruptions occur due to unreliable MTU values
Solution Approach 1:
The patent applies preliminary action by performing MTU sounding before actual data transmission. The sending device sends a sounding data packet with a candidate MTU value to verify whether the MTU is reliable before using it for actual transmission, preventing packet loss and communication interruptions.
Solution Approach 2:
The patent implements feedback through the sounding mechanism where the sending device transmits a sounding data packet and receives an acknowledgement. Based on whether the acknowledgement is received, the device determines if the candidate MTU value is reliable and adjusts subsequent transmission accordingly.
2Adaptability or versatility
If fixed MTU values are used without adjustment, then device operation is simple, but communication quality deteriorates when channel conditions change
Solution Approach 1:
The patent applies dynamics by making the MTU value adjustable rather than fixed. The sounding data packet carries a candidate MTU value that can be dynamically determined based on channel conditions, allowing the system to adapt to changing transmission environments while maintaining efficient communication.
Data Source
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AI summary
The present invention relates to a method and device for data transmission, and a storage medium. The method for data transmission is applied to a first electronic device, and includes: during Bluetooth communication, negotiating, by transmitting a sounding data packet at a data size which is a candidate value of a maximum transmission unit (MTU), with a second electronic device about an applied value of the MTU for the Bluetooth communication.