Control Message Repetition Timing for Low-Latency UE Scheduling

The base station transmits multiple repetitions of the control message in advance before the UE needs to process the scheduling information. By preparing and transmitting multiple copies beforehand, the system ensures that the UE can combine these repetitions to achieve reliable decoding without waiting for additional retransmissions after the data transmission begins, thus resolving the latency-reliability tradeoff.

The patent applies soft combining technique where the UE combines multiple repetitions of the control message to improve decoding reliability. By merging the information from multiple transmissions, the system achieves higher reliability without requiring sequential retransmissions that would significantly increase latency, as the repetitions are transmitted in parallel time slots.

The patent extracts and identifies a specific triggering instance from among the multiple control message repetitions. By selecting a reference point (the triggering instance) to which all scheduling delays are referenced, the system simplifies UE processing. Instead of the UE needing to process all repetitions and determine timing relationships between each, the UE only needs to identify the triggering instance and apply the scheduling delay from that single reference point, significantly reducing processing complexity.

The triggeringinstance acts as an intermediary reference element that mediates between the multiple repetitions and the UE's scheduling requirements. Rather than requiring the UE to directly process the temporal relationships of all repetitions, the triggering instance serves as a standardized reference point that simplifies the timing calculation, reducing the complexity burden on the UE.