TWT Schedule Alignment Using Audio Packet Parameter Updates
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Solution Overview
Problem
Existing wireless communication systems face high latency issues due to the exchange of Bluetooth messages and complete TWT teardowns for updating target wake time (TWT) parameters, which are not suitable for applications requiring ultra-low latency and lossless audio, such as ULL gaming or streaming lossless audio.
Innovation Solution
A method and apparatus for wireless communication devices to transmit and receive requests for TWT schedule alignment using audio data packets, embedding updated TWT parameters in padding sections, and utilizing downlink audio data packets for efficient parameter updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If Bluetooth messages and complete TWT teardowns are used to update TWT parameters, then TWT parameter updates can be performed, but latency increases and user experience deteriorates
Solution Approach 1:
The patent merges TWT parameter update functionality with audio data packet transmission by embedding TWT parameters in the padding section of audio data packets. This combines two separate communication functions into a single efficient mechanism, eliminating the need for separate Bluetooth message exchanges and TWT teardown procedures, thereby reducing latency while maintaining reliable parameter updates.
Solution Approach 2:
The patent uses audio data packets as an intermediary carrier to transmit TWT parameters. Instead of using dedicated control messages (Bluetooth messages), the TWT parameters are embedded within the existing audio data stream padding sections. This intermediary approach allows parameter updates to occur seamlessly alongside audio data transmission without requiring separate communication channels or procedures.
2Productivity
If efficient TWT parameter updates are implemented without Bluetooth messages, then latency is reduced, but communication reliability may be compromised
Solution Approach 1:
The patent merges TWT parameter update functionality with audio data packet transmission by embedding TWT parameters in the padding section of audio data packets. This combines two separate communication functions into a single efficient mechanism, eliminating the need for separate Bluetooth message exchanges and TWT teardown procedures, thereby reducing latency while maintaining reliable parameter updates.
Solution Approach 2:
The audio data packet structure serves itself by utilizing its existing padding sections to carry TWT parameters. This self-service mechanism allows the audio transmission infrastructure to simultaneously perform its primary function (audio delivery) and secondary function (parameter updates) without requiring additional dedicated communication resources or protocols, thereby maintaining reliability while improving efficiency.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless device may transmit, to a second wireless device, a request to configure a target wake time (TWT) schedule for a first link associated with the second wireless device, the request including an indication for TWT alignment with a TWT schedule of a second link associated with a third wireless device, the indication for the TWT alignment indicated within a field that is configured to indicate a TWT start time. The first wireless device may receive, from the second wireless device, a response indicating a TWT start time within the field, the TWT start time based at least in part on the indication for TWT alignment with the TWT schedule of the second link. Numerous other aspects are described.