HARQ-ACK Codebook Coordination Across DCI-Scheduled Cell Sets

The patent segments the cells into multiple sets (first set, second set, etc.) and assigns different HARQ-ACK codebook determination methods to each set. For cells in the first set, the terminal determines HARQ-ACK bits based on actual received DCIs, while for cells in the second set, the network-side device determines HARQ-ACK bits based on configured cell combinations. This segmentation resolves the contradiction by allowing flexible overhead reduction while maintaining reliability through set-specific rules.

The patent applies different HARQ-ACK codebook determination rules to different cell sets based on their specific characteristics. The first set of cells uses one determination method while the second set uses another method, allowing each set to be optimized for its specific requirements. This local differentiation enables the system to reduce overhead where appropriate while ensuring reliability where needed.

The patent divides cells into multiple sets with different determination rules. For the first set, the terminal uses actual received DCIs to determine HARQ-ACK bits, ensuring high accuracy. For the second set, the network-side device uses configured cell combinations, simplifying the process. This segmentation allows the system to achieve high accuracy where necessary while reducing overall complexity.

The patent introduces set configurations as an intermediary mechanism that mediates between the terminal and network-side device. The set configuration information acts as a mediator that specifies which determination method should be applied to which cell set, reducing the complexity of determining the final HARQ-ACK codebook while maintaining feedback accuracy.

The patent segments cells into multiple sets and applies different determination rules to each. The second set of cells uses network-side device determination based on configured combinations, providing simplicity. The first set uses terminal-based determination based on actual DCIs, providing adaptability. This segmentation allows the system to achieve both simplicity and adaptability in different contexts.

The patent applies different qualities of determination to different cell sets. The second set uses a simpler, more rigid determination method suitable for stable configurations, while the first set uses a more adaptive method suitable for dynamic conditions. This local differentiation allows the system to optimize for either simplicity or adaptability depending on the specific cell set requirements.