Multi-TRP Beam Failure Recovery With SpCell MAC CE Prioritization

The patent extracts only the necessary beam failure recovery information for SpCell (special cell) into the BFR MAC CE message, while excluding information for other cells. This selective extraction ensures that the message includes critical recovery data for the most important cell (SpCell) while keeping the uplink resource size manageable by omitting redundant or less critical information.

The patent applies different quality levels of information inclusion based on cell importance. For SpCell, complete beam failure recovery information is included to ensure high reliability, while for other cells, information is selectively included or excluded based on available uplink resources. This local differentiation optimizes the balance between recovery reliability and resource consumption.

The patent segments MAC control elements into different priority levels, with beam failure recovery MAC CEs assigned the highest priority. This segmentation allows the system to systematically manage multiple MAC CEs by their urgency and importance, ensuring that critical beam failure recovery information is transmitted first while simplifying the overall management through clear priority categorization.

The patent establishes prioritization rules for MAC CEs in advance, before actual transmission scenarios occur. By pre-defining that beam failure recovery MAC CEs have higher priority than other MAC CEs, the system eliminates the need for complex real-time decision-making during transmission, thereby reducing operational complexity while maintaining high responsiveness.