Semi-Persistent Scheduling for Short TTIs

The patent segments the transmission time into distinct uplink and downlink slots within short TTIs, organizing resources to prevent interference. By dividing the communication timeline into structured units with clear direction assignments, the system achieves high data rates while avoiding uplink-downlink interference through proper temporal and spectral resource segmentation.

The patent implements self-service HARQ retransmissions where the receiving device autonomously determines retransmission parameters and executes retransmissions without requiring explicit signaling from the transmitting device. This self-service mechanism maintains high retransmission reliability while dramatically reducing scheduling overhead by eliminating the need for continuous explicit coordination messages.

The patent applies preliminary action by pre-configuring HARQ retransmission parameters and resources before actual data transmission occurs. This advance preparation allows the system to execute retransmissions immediately when needed without waiting for explicit signaling exchanges, thereby maintaining high retransmission accuracy while minimizing latency through pre-established protocols and resource allocations.