Unified HARQ Timing in TDD Frame Structures

The patent applies universality by establishing a unified HARQ timing structure that works across all uplink-downlink configurations. The base station determines a single HARQ timing for the cell that applies universally to all configurations, making the system multi-functional without requiring configuration-specific timing rules. This resolves the contradiction by allowing the system to adapt to different traffic demands through configuration flexibility while maintaining uniform HARQ timing procedures.

The patent introduces an intermediary mechanism where the base station acts as a central controller that determines and signals the HARQ timing for the cell. This intermediary approach allows the system to support multiple uplink-downlink configurations and optimize for different scenarios while maintaining a single, simplified protocol for HARQ timing determination. The base station mediates between the need for scenario optimization and protocol simplicity by centrally managing timing decisions.

The patent applies parameter changes by allowing the HARQ timing parameter to be dynamically determined by the base station based on the selected uplink-downlink configuration. Instead of having fixed, configuration-specific timing rules, the system changes the timing parameter adaptively while maintaining a unified determination mechanism. This resolves the contradiction by fulfilling specific timing requirements through parameter flexibility while keeping implementation complexity low through a single determination procedure.