5G CPAC PSCell/SCG Switching With Reusable Conditional Configurations

The patent applies the discarding and recovering principle by maintaining the eCPC configuration in the UE even after switching to a PSCell. Instead of releasing the configuration, the UE keeps it stored and capable of being reused in future PSCell/SCG switch procedures. This allows the configuration resources to be recovered and utilized again, improving adaptability while avoiding the need to allocate new configuration resources each time.

The patent applies the preliminary action principle by pre-configuring the UE with eCPC configuration information including execution conditions and candidate PSCells before the actual switching event. The UE stores this configuration and uses it during the switching decision process. This preliminary preparation allows the UE to make reliable switching decisions based on pre-established criteria while avoiding continuous evaluation that would lead to frequent unnecessary changes.

The patent applies the segmentation principle by dividing the eCPC configuration into distinct components: execution conditions, candidate PSCell list, and switching triggers. The UE processes these segmented configuration elements separately and systematically. This segmentation allows for accurate evaluation of switching conditions while simplifying the configuration management process, as each component can be handled independently according to its specific requirements.