TWS Response Packet Transmission via Device Coordination
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Solution Overview
Problem
In Bluetooth communication environments, especially with true wireless stereo devices, resource waste occurs due to the inability to efficiently transmit response packets when only one device successfully receives data packets, leading to unnecessary retransmissions and latency.
Innovation Solution
A method and device where a first electronic device shares information with a second electronic device to determine if both receive data packets, and transmits a response packet indicating acknowledgment (ACK) or negative acknowledgment (NACK) based on shared information, optimizing communication by reducing latency and resource waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only one device transmits response packets in TWS communication, then device complexity is reduced, but communication efficiency deteriorates due to unnecessary retransmissions and latency
Solution Approach 1:
The patent merges the response packet transmission function from a single device to multiple devices in the TWS system. Both the first and second electronic devices are configured to transmit response packets to the third electronic device based on their respective data packet reception status, thereby improving communication efficiency while maintaining manageable device complexity through standardized protocols
Solution Approach 2:
The patent implements dynamic response packet transmission where devices adapt their transmission behavior based on real-time reception status. The third electronic device dynamically determines which device(s) should transmit responses based on acknowledgment bits received, and the first and second devices dynamically adjust their response transmission based on whether they successfully received data packets
2Reliability
If the third electronic device waits for response packets from both devices, then data accuracy is improved, but transmission time increases due to sequential waiting
Solution Approach 1:
The patent implements periodic parallel response transmission where the third electronic device receives response packets from both the first and second devices simultaneously within a defined time period. This periodic parallel action ensures both devices' reception status is confirmed accurately while reducing total transmission time compared to sequential waiting
Solution Approach 2:
The patent uses feedback mechanisms where the third electronic device sends data packets with acknowledgment requests, receives response packets containing reception status information from both devices, and uses this feedback to determine subsequent transmission actions. This feedback loop ensures accurate confirmation of data packet receipt while optimizing transmission timing
Data Source
AI summary
A first electronic device may share information about a received packet with a second electronic device to obtain first information indicating whether the first electronic device and the second electronic device each receive a data packet from the third electronic device during a first time period, in case that the first information indicates that the first electronic device and the second electronic device each fail to receive the data packet during the first time period, transmit a first response packet indicating a negative acknowledgment (NACK) to the third electronic device, and share the information about the received packet with the second electronic device to obtain second information indicating whether the first electronic device and the second electronic device each receive the data packet retransmitted from the third electronic device during a second time period after the first time period.