Audio Communication Start-Time Updates Without TWT Teardown
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Solution Overview
Problem
Existing wireless communication systems face high latency issues due to explicit TWT teardown and parameter update procedures in extended personal area networks (XPANs) for applications like ultra-low-latency gaming and streaming lossless audio, which are not suitable for maintaining low-latency and lossless criteria.
Innovation Solution
Implementing a data packet-based mechanism where updated TWT parameters are embedded in RTP audio headers or padding sections of audio data packets, allowing devices to dynamically adjust communication start times without explicit teardown procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If explicit TWT teardown and parameter update procedures are used in XPANs, then communication reliability is improved, but end-to-end latency increases
Solution Approach 1:
The patent combines TWT parameter updates with existing RTP audio data packet transmissions. Instead of separate teardown and update procedures, the updated TWT parameters are embedded directly within the RTP audio headers or padding sections of audio data packets that are already being transmitted for audio streaming. This merging eliminates additional signaling steps and reduces end-to-end latency while maintaining communication reliability.
2Measurement precision
If separate TWT parameter update signaling is implemented, then parameter update accuracy is improved, but device complexity increases
Solution Approach 1:
The RTP audio data packets serve multiple functions simultaneously: they transport audio data for streaming and carry updated TWT parameters in their headers or padding sections. This multi-functionality approach allows the same communication infrastructure to handle both audio transmission and parameter updates, reducing signaling complexity and protocol overhead while maintaining parameter update accuracy.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device (WCD) may communicate, during a time period, with a first audio device via a first wireless connection and with a second audio device via a second wireless connection, periodic communications with the first audio device having a first start time that is fixed and a first duration that is variable in length and periodic communications with the second audio device having a start time and a second duration that is variable in length. The WCD may transmit, to the second audio device and based at least in part on detection of a change in the first duration, an indication of a second start time, that is different from the first start time, associated with the second audio device. Numerous other aspects are described.