Flexible A/N Transmission Timing Control in 5G Radio Systems

The patent implements dynamic A/N transmission timing by configuring multiple candidate timings (k0, k1, k2, ..., kn) instead of a fixed timing. The base station can dynamically select and indicate which timing to use through DCI signaling, allowing the system to adapt transmission timing based on channel conditions, traffic patterns, and quality requirements, thereby resolving the contradiction between maintaining reliability and improving adaptability.

The patent changes the timing parameter from a fixed value to a variable that can be selected from multiple candidates. By introducing a set of candidate A/N transmission timings and using DCI to indicate the selected timing, the system can adjust the timing parameter dynamically to optimize communication quality while maintaining flexibility for different scenarios.

The patent applies preliminary action by pre-configuring a set of candidate A/N transmission timings (k0, k1, k2, ..., kn) before actual transmission occurs. This allows the system to prepare multiple options in advance, and the base station can simply indicate which pre-configured timing to use through DCI, reducing the complexity of real-time decision-making while maintaining high adaptability.

The patent introduces DCI (Downlink Control Information) as an intermediary mechanism that bridges the gap between the need for variable timing and the desire for simple control. The DCI carries the timing indication, acting as a mediator that enables flexible timing selection without requiring complex control logic in the UE, thus managing control complexity while achieving adaptability.