Multi-PDSCH HARQ Timing Using K1-Based ACK/NACK Coordination

The patent segments the HARQ timing coordination by introducing separate K1 values for each PDSCH transmission within the multi-PDSCH grant. Each K1 value independently specifies the PDSCH-to-HARQ timing for its corresponding PDSCH, allowing individual timing control while maintaining a single DCI message structure. This segmentation resolves the contradiction by reducing control overhead through single DCI while managing timing complexity through structured segmentation of timing parameters.

The patent introduces dynamic flexibility in HARQ timing coordination by allowing different K1 values to be assigned to different PDSCH transmissions based on their specific requirements. The UE dynamically determines the appropriate K1 value for each PDSCH-to-HARQ feedback pair, enabling adaptive timing adjustment. This dynamic approach resolves the contradiction by maintaining single DCI overhead while providing flexible timing coordination through dynamic K1 selection.

The patent merges multiple PDSCH transmissions under a single DCI message (multi-PDSCH grant), reducing control overhead by eliminating the need for separate DCI messages. The merging is achieved by consolidating scheduling information for multiple PDSCHs in one DCI while introducing a structure that allows individual K1 values for each PDSCH-to-HARQ feedback pair. This merging approach resolves the contradiction by reducing control overhead while maintaining manageable timing coordination through the standardized K1 value structure.

The patent creates a universal DCI message structure that can handle multiple PDSCH transmissions with different timing requirements. The multi-PDSCH grant serves multiple functions: scheduling multiple PDSCHs, providing individual K1 values for each, and coordinating HARQ feedback timing for all transmissions. This multi-functionality resolves the contradiction by enabling single DCI to manage complex timing scenarios that would otherwise require separate DCI messages.

The patent segments the K1 value assignments by providing individual K1 values for each PDSCH-to-HARQ feedback pair within the multi-PDSCH grant. This segmentation allows optimized HARQ feedback timing for each PDSCH transmission while maintaining a structured DCI message format. The segmented approach resolves the contradiction by enabling timing optimization without creating excessive DCI complexity through a systematic organization of multiple K1 values.

The patent changes the timing parameter (K1 value) for each PDSCH transmission to optimize HARQ feedback timing. By allowing different K1 values in the DCI message, the system can adjust timing parameters dynamically based on channel conditions, buffer status, and HARQ process requirements. This parameter change capability resolves the contradiction by improving timing performance while managing DCI complexity through structured parameter organization.