Prioritized HARQ Feedback Bundling for Low-Latency Uplink Transmission

The patent segments HARQ feedback into different priority groups (first priority for low-latency services like URLLC, second priority for other services). By dividing feedback into priority-based segments, the system can process and transmit high-priority feedback separately, ensuring timeliness for latency-sensitive services while still achieving overall feedback compression through selective bundling of lower-priority feedback.

The patent applies different quality levels of processing to different HARQ feedback based on their priority. High-priority feedback (first priority) is processed with minimal bundling to preserve timeliness, while lower-priority feedback (second priority) undergoes more aggressive bundling. This local differentiation of processing quality resolves the contradiction by maintaining simplicity where possible while ensuring speed where critical.

The patent performs preliminary classification of HARQ feedback into priority groups before the bundling process. By pre-organizing feedback according to service priority (URLLC vs. other services), the system simplifies the subsequent bundling operation, as it only needs to apply different bundling strategies to already-segregated groups rather than making complex real-time decisions about individual feedback items.