Low Energy Packet Scheduling via Isochronous Feedback
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Solution Overview
Problem
Traditional Bluetooth and Bluetooth Low Energy (BLE) technologies face limitations in range, data capacity throughput, and are susceptible to interference from other devices, particularly in applications requiring low latency and high data integrity such as spatial audio and extended reality.
Innovation Solution
The method involves transmitting Low Energy (LE) packets earlier than their prescheduled events, often piggybacking on Isochronous (ISO) data packet feedback, to reduce bandwidth requirements and increase the availability of time windows for other signaling or applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If LE packets are transmitted according to prescheduled events, then bandwidth usage is optimized, but latency increases
Solution Approach 1:
The patent applies preliminary action by transmitting LE packets earlier than their prescheduled events. The system determines ahead of time that certain LE packets can be sent in advance during available time windows, reducing latency while maintaining bandwidth efficiency. This is achieved by identifying early transmission opportunities before the prescheduled event time and sending packets during these windows.
2Loss of time
If more time windows are allocated for LE packets, then latency is reduced, but bandwidth available for other signaling decreases
Solution Approach 1:
The patent applies partial action by transmitting only certain LE packets earlier than prescheduled rather than all packets. The system selectively identifies which LE packets can be sent in advance during available time windows, reducing latency for time-sensitive packets while leaving other packets for their scheduled times, thus preserving bandwidth for other applications.
Solution Approach 2:
The system dynamically adjusts transmission timing based on available time windows and packet priorities. Rather than using a fixed schedule, the system flexibly determines early transmission opportunities for specific LE packets, optimizing the balance between latency reduction and bandwidth availability for other signaling and applications.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless device may receive a data packet on an isochronous (ISO) link. The wireless device may transmit a low energy (LE) packet with feedback for the data packet. Numerous other aspects are described.