Non-Zero Coefficient Ordering for Multi-TRP CJT Precoding

The patent segments the non-zero coefficients into groups corresponding to different TRPs (transmit-receive points). Each TRP's coefficients are ordered and transmitted separately, allowing the network to process and apply precoding specific to each TRP's channel conditions, thereby improving overall precoding performance while maintaining manageable complexity through structured organization

The patent applies preliminary ordering and selection of non-zero coefficients based on channel state information before transmission. The UE (user equipment) pre-processes the coefficients by identifying and ordering the most significant ones for each TRP, ensuring that the network receives optimized coefficient sets that enhance precoding effectiveness from the outset

The patent extracts and transmits only the essential non-zero coefficients required for effective CJT precoding, rather than transmitting all possible coefficients. By identifying and selecting only the non-zero (or most significant) coefficients for each TRP, the system maintains precoding accuracy while significantly reducing the amount of uplink control information that needs to be transmitted

The patent applies partial action by transmitting a subset of coefficients (only non-zero or most significant ones) rather than the complete set. This partial transmission approach provides sufficient information for effective precoding while avoiding the overhead of transmitting redundant zero or less significant coefficients, achieving a balance between accuracy and efficiency