FDR Reference Signal Configuration for Self-Interference Cancellation

The patent segments the Reference Signal resources into different types (puncturing RS and non-puncturing RS) and allocates them to different user groups. This segmentation allows the system to serve both FDR users (who need puncturing RS for self-interference cancellation) and non-FDR users (who use non-puncturing RS) simultaneously, thereby maintaining high frequency efficiency while managing self-interference through differentiated resource allocation.

The patent applies local quality by providing different RS configurations to different spatial locations or user groups. Specifically, puncturing RS is allocated to FDR users experiencing self-interference, while non-puncturing RS is allocated to other users. This localized differentiation ensures that each user group receives the appropriate signal quality needed for their specific transmission mode, resolving the contradiction between frequency efficiency and self-interference.

The patent applies partial action by allocating puncturing RS only to the extent necessary for FDR users who experience self-interference, rather than providing enhanced RS resources to all users. This partial differentiation maintains channel estimation accuracy for affected users while avoiding excessive overhead allocation across the entire system.

The patent creates a universal RS allocation framework that serves multiple functions: puncturing RS serves FDR users for self-interference cancellation, while non-puncturing RS serves other users for standard channel estimation. This multi-functional approach allows a single RS resource allocation mechanism to address different user needs simultaneously, improving channel estimation accuracy where needed without universally increasing overhead.