CSI Derivation Using Antenna Port Mapping in Wireless Systems

The patent introduces an intermediary mapping relationship between CSI-RS resource port numbers and report unit port numbers. This mapping acts as a mediator that translates between the separate port numbering systems, ensuring that the UE can correctly associate CSI-RS measurements with the appropriate report units without direct port number conflicts or ambiguities.

The patent changes the parameter representation by introducing a mapping configuration that transforms the relationship between CSI-RS resource ports and report unit ports. Instead of using identical port numbers for both entities, the system uses a mapping relationship that explicitly defines how ports in different entities correspond to each other, eliminating ambiguity while maintaining configuration flexibility.

The mapping configuration serves as an intermediary that bridges the difference between varying numbers of antenna ports in CSI-RS resources and report units. It provides a systematic way to associate ports from resources with different port counts to the appropriate report unit ports, managing the complexity through structured mapping rather than direct one-to-one correspondence.

The mapping configuration provides a universal mechanism that handles various scenarios where CSI-RS resources and report units have different numbers of antenna ports. This single mapping approach works across multiple configurations and cases, providing a multi-functional solution that manages port associations regardless of the specific port count mismatch.