Controlling Device Low Latency Transmission Scheduling

The patent segments the transmission scheduling into two distinct phases: a high priority window phase for low latency transmissions and a normal scheduling phase for other transmissions. This segmentation allows high priority transmissions to be handled separately with guaranteed low latency, while normal transmissions use conventional priority-based scheduling. The segmentation resolves the contradiction by creating a dedicated pathway for low latency requirements without compromising overall scheduling complexity.

The patent implements preliminary action by establishing a high priority window before actual transmission occurs. Transmitting devices with high priority requirements can prepare their transmission information in advance during this window, and the controlling device pre-determines their transmission order. This preliminary scheduling action ensures low latency transmissions are ready to execute immediately when the window opens, eliminating the need for complex real-time priority arbitration.

The patent divides the transmission queue into segmented groups: high priority transmissions and normal priority transmissions. By segmenting this way, the system can guarantee priority satisfaction for high priority devices within the high priority window, while maintaining good transmission efficiency for normal devices. The segmentation prevents priority benefits from being offset by mixing all devices in a single priority-based schedule.

The patent employs periodic action through the repeated opening and closing of the high priority window in cyclic fashion. During each window period, high priority transmissions are serviced, then the window closes and normal scheduling occurs. This periodic structure ensures that priority requirements are consistently met without permanently sacrificing transmission efficiency, as the system alternates between serving high priority and normal priority traffic in a rhythmic pattern.